/* ==========================================================================
   Niyan Portal — Instrument theme
   Warm paper, copper signal, mono labels, hairline structure.
   Light and dark via [data-theme]. Content layout is unchanged.
   ========================================================================== */

:root {
  color-scheme: light;

  --canvas: #f3efe6;
  --surface: #ffffff;
  --surface-2: #faf9f6;
  --surface-3: #f1efea;
  --rail: #fbfaf8;

  --ink: #17181b;
  --ink-2: #4c5058;
  --ink-3: #868a91;

  --line: #e5e2db;
  --line-soft: #eeebe5;
  --line-strong: #d4d0c7;
  --highlight: rgba(255, 255, 255, 0.9);

  --accent: #c0521c;
  --accent-hover: #a84616;
  --accent-ink: #ffffff;
  --accent-soft: rgba(192, 82, 28, 0.08);
  --accent-line: rgba(192, 82, 28, 0.22);

  --teal: #10706c;
  --plum: #7a4a72;
  --sand: #9a6b1f;
  --success: #1c7a4b;
  --danger: #b3271e;
  --warn: #9a6b1f;

  --ok-soft: rgba(28, 122, 75, 0.09);
  --danger-soft: rgba(179, 39, 30, 0.08);

  --shadow-sm: 0 1px 2px rgba(23, 24, 27, 0.05);
  --shadow: 0 1px 2px rgba(23, 24, 27, 0.04), 0 6px 16px -6px rgba(23, 24, 27, 0.1);
  --shadow-lg: 0 24px 60px -20px rgba(23, 24, 27, 0.28), 0 4px 12px rgba(23, 24, 27, 0.06);
  --focus: rgba(192, 82, 28, 0.28);

  --bg-primary: var(--canvas);
  --bg-secondary: var(--surface-3);
  --bg-card: var(--surface);
  --border-color: var(--line);
  --border-focus: var(--accent);
  --text-primary: var(--ink);
  --text-secondary: var(--ink-2);
  --text-muted: var(--ink-3);
  --input-bg: var(--surface);
  --row-hover: rgba(23, 24, 27, 0.025);
  --scrollbar: rgba(23, 24, 27, 0.18);

  --accent-cyan: var(--teal);
  --accent-cyan-text: var(--teal);
  --accent-violet: var(--accent);
  --accent-pink: var(--plum);
  --accent-blue: var(--accent);
  --accent-amber: var(--sand);

  --font-display: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --ease: cubic-bezier(0.32, 0.72, 0, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: background 220ms var(--ease-soft), color 220ms var(--ease-soft),
    border-color 220ms var(--ease-soft), box-shadow 220ms var(--ease-soft),
    transform 220ms var(--ease);
  --border-radius-lg: 13px;
  --border-radius-md: 9px;
  --r-sm: 6px;
  --r: 9px;
  --r-lg: 13px;
  --shadow-glow: var(--shadow);
}

html[data-theme="dark"] {
  color-scheme: dark;

  --canvas: #16140f;
  --surface: #141416;
  --surface-2: #191a1d;
  --surface-3: #202124;
  --rail: #0f0f11;

  --ink: #f2f1ee;
  --ink-2: #b3b2ad;
  --ink-3: #7e7f85;

  --line: rgba(242, 241, 238, 0.1);
  --line-soft: rgba(242, 241, 238, 0.06);
  --line-strong: rgba(242, 241, 238, 0.18);
  --highlight: rgba(255, 255, 255, 0.06);

  --accent: #e8813f;
  --accent-hover: #f2955a;
  --accent-ink: #17110c;
  --accent-soft: rgba(232, 129, 63, 0.13);
  --accent-line: rgba(232, 129, 63, 0.3);

  --teal: #48b3ab;
  --plum: #b489ac;
  --sand: #d3a24d;
  --success: #4cb37a;
  --danger: #e8695f;
  --warn: #d3a24d;

  --ok-soft: rgba(76, 179, 122, 0.14);
  --danger-soft: rgba(232, 105, 95, 0.13);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 8px 24px -10px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 30px 70px -24px rgba(0, 0, 0, 0.85), 0 4px 14px rgba(0, 0, 0, 0.5);
  --focus: rgba(232, 129, 63, 0.35);
  --row-hover: rgba(242, 241, 238, 0.035);
  --scrollbar: rgba(242, 241, 238, 0.2);

  --bg-primary: var(--canvas);
  --bg-secondary: var(--surface-3);
  --bg-card: var(--surface);
  --border-color: var(--line);
  --border-focus: var(--accent);
  --text-primary: var(--ink);
  --text-secondary: var(--ink-2);
  --text-muted: var(--ink-3);
  --input-bg: var(--surface);
  --accent-cyan: var(--teal);
  --accent-cyan-text: var(--teal);
  --accent-violet: var(--accent);
  --accent-pink: var(--plum);
  --accent-blue: var(--accent);
  --accent-amber: var(--sand);
}

/* Reset & Global Base Defaults */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--canvas);
  color-scheme: light;
}

html[data-theme="dark"] {
  color-scheme: dark;
}

body {
  background-color: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 400ms var(--ease-soft), color 400ms var(--ease-soft);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.25;
  color: var(--ink);
  text-wrap: balance;
}

p, li, blockquote {
  color: var(--ink-2);
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

::selection {
  background: var(--accent-soft);
  color: var(--ink);
}

.text-gradient {
  color: var(--accent);
  background: none;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

.atmosphere {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.atmosphere--shell {
  position: fixed;
  z-index: -1;
}

.atmosphere-mosaic {
  position: absolute;
  inset: 0;
  background-color: var(--canvas);
  background-image:
    linear-gradient(45deg, rgba(23, 24, 27, 0.055) 1px, transparent 1px),
    linear-gradient(-45deg, rgba(23, 24, 27, 0.055) 1px, transparent 1px),
    repeating-conic-gradient(
      from 45deg at 50% 50%,
      #fbf8f1 0deg 90deg,
      #f3eee4 90deg 180deg,
      #f7f2e8 180deg 270deg,
      #efe9dc 270deg 360deg
    );
  background-size: 56px 56px, 56px 56px, 56px 56px;
  background-position: 0 0, 0 0, 0 0;
}

.atmosphere-light {
  position: absolute;
  top: -28%;
  right: -8%;
  width: 55vw;
  height: 55vw;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 40%, rgba(192, 82, 28, 0.14) 0%, transparent 58%),
    radial-gradient(circle at 70% 70%, rgba(16, 112, 108, 0.08) 0%, transparent 55%);
  filter: blur(36px);
  animation: lightDrift 40s var(--ease-soft) infinite;
}

.atmosphere-grain {
  position: absolute;
  inset: 0;
  opacity: 0.28;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
  background-size: 150px 150px;
}

html[data-theme="dark"] .atmosphere-mosaic {
  background-image:
    linear-gradient(45deg, rgba(242, 241, 238, 0.06) 1px, transparent 1px),
    linear-gradient(-45deg, rgba(242, 241, 238, 0.06) 1px, transparent 1px),
    repeating-conic-gradient(
      from 45deg at 50% 50%,
      #1c1a16 0deg 90deg,
      #141310 90deg 180deg,
      #1a1814 180deg 270deg,
      #12110e 270deg 360deg
    );
}

html[data-theme="dark"] .atmosphere-light {
  background:
    radial-gradient(circle at 35% 40%, rgba(232, 129, 63, 0.16) 0%, transparent 58%),
    radial-gradient(circle at 70% 70%, rgba(72, 179, 171, 0.08) 0%, transparent 55%);
}

html[data-theme="dark"] .atmosphere-grain {
  mix-blend-mode: soft-light;
  opacity: 0.28;
}

@keyframes lightDrift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-6%, 8%, 0) scale(1.12); }
}

.bg-grid,
.bg-orb {
  display: none;
}

/* Sticky Header & Banner Wrapper */
.sticky-header-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

/* Animated Gradient Top Announcement Banner */
.top-banner {
  background: var(--accent);
  color: var(--accent-ink);
  padding-block: 0.55rem;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 500;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--accent-hover);
}

.banner-badge {
  background: color-mix(in srgb, var(--accent-ink) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-ink) 28%, transparent);
  color: var(--accent-ink);
  padding: 0.15rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  border-radius: 9999px;
}

.banner-link {
  color: var(--accent-ink);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

.banner-link:hover {
  opacity: 0.85;
}

.main-header {
  position: relative;
  background-color: color-mix(in srgb, var(--canvas) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--line);
  padding-block: 0;
}

.header-container {
  display: flex;
  align-items: center;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: 1.5rem;
  gap: 1.75rem;
  min-height: 64px;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.02em;
}

.logo-image {
  height: 32px;
  width: 32px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  flex: none;
}

.logo-container:hover .logo-image {
  transform: none;
  box-shadow: var(--shadow-sm);
  border-color: var(--line-strong);
}

.logo-text {
  color: var(--ink);
}

.logo-beta {
  display: inline-flex;
  align-items: center;
  margin-left: 2px;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.3;
}

.header-cta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  margin-inline-start: auto;
  flex: none;
}

.theme-switch {
  display: inline-flex;
  padding: 2px;
  gap: 2px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--surface-3);
}

.theme-switch-btn {
  appearance: none;
  margin: 0;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--ink-3);
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: none;
  cursor: pointer;
  min-height: 0;
}

.theme-switch-btn:hover {
  background: transparent;
  color: var(--ink);
  transform: none;
  box-shadow: none;
}

.theme-switch-btn.is-active {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.main-nav {
  flex: 1;
  min-width: 0;
}

.main-nav .nav-root {
  display: flex;
  list-style: none;
  gap: 0.15rem 1.35rem;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-trigger {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 1.15rem 0;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: -0.01em;
  text-transform: none;
  min-height: 0;
  box-shadow: none;
  cursor: pointer;
}

a.nav-trigger {
  text-decoration: none;
}

.nav-trigger:hover,
.nav-trigger:focus-visible,
.nav-item.has-menu:hover .nav-trigger,
.nav-item.has-menu:focus-within .nav-trigger,
.nav-item.has-menu.is-open .nav-trigger,
.nav-trigger.is-current {
  color: var(--ink);
  background: transparent;
  border: 0;
  outline: none;
  transform: none;
  box-shadow: none;
}

.nav-caret {
  width: 0;
  height: 0;
  border-left: 3.5px solid transparent;
  border-right: 3.5px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.45;
  transition: transform 160ms var(--ease);
}

.nav-item.has-menu:hover .nav-caret,
.nav-item.has-menu:focus-within .nav-caret,
.nav-item.has-menu.is-open .nav-caret {
  transform: rotate(180deg);
}

.nav-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 120;
  display: flex;
  min-width: 28rem;
  margin: 0;
  padding: 1.15rem 0.35rem 1.15rem 0.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 140ms var(--ease-soft), transform 140ms var(--ease), visibility 140ms;
}

#nav-menu-resources {
  left: auto;
  right: 0;
}

.nav-menu::before {
  content: "";
  position: absolute;
  top: -18px;
  left: 0;
  right: 0;
  height: 18px;
}

.nav-menu-col {
  flex: 1;
  min-width: 10.5rem;
  padding: 0.1rem 1.15rem;
}

.nav-menu-col + .nav-menu-col {
  border-left: 1px solid var(--line);
}

.nav-menu-heading {
  display: block;
  margin-bottom: 0.65rem;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.nav-item.has-menu.is-open .nav-menu,
.nav-item.has-menu:focus-within .nav-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .nav-item.has-menu:hover .nav-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
}

.nav-menu a {
  display: block;
  padding: 0.42rem 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}

.nav-menu a:hover,
.nav-menu a:focus-visible,
.nav-menu a[aria-current="page"] {
  color: var(--accent);
  background: transparent;
  outline: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-body);
  font-weight: 520;
  letter-spacing: -0.005em;
  border-radius: var(--r-sm);
  padding: 7px 13px;
  font-size: 13px;
  cursor: pointer;
  transition: background 160ms var(--ease-soft), transform 160ms var(--ease),
    box-shadow 160ms var(--ease-soft), border-color 160ms var(--ease-soft),
    color 160ms var(--ease-soft);
  border: 1px solid transparent;
  min-height: 38px;
}

.btn-sm {
  padding: 5px 11px;
  font-size: 12.5px;
  min-height: 32px;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.btn-primary:hover {
  transform: translateY(-1px);
  background: var(--accent-hover);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-secondary {
  background: var(--surface);
  color: var(--ink-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-weight: 500;
}

.btn-secondary:hover {
  background: var(--surface-2);
  color: var(--ink);
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* Hero Section */
.hero-section {
  padding-block: 5rem 3rem;
  position: relative;
  text-align: center;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 2rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  animation: pulse-glow 2s infinite;
}

.badge-text {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 700px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* Terminal Container */
.terminal-container {
  width: 100%;
  max-width: 650px;
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
  text-align: left;
}

.terminal-header {
  background: #1e293b;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #334155;
}

.terminal-buttons {
  display: flex;
  gap: 0.5rem;
}

.terminal-btn {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-btn.close { background-color: #ef4444; }
.terminal-btn.minimize { background-color: #eab308; }
.terminal-btn.maximize { background-color: #22c55e; }

.terminal-title {
  margin-inline-start: auto;
  margin-inline-end: auto;
  font-size: 0.75rem;
  color: #94a3b8;
  font-family: monospace;
}

.terminal-body {
  padding: 1.25rem;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.9rem;
  background: #0f172a;
}

.terminal-line {
  margin-bottom: 0.5rem;
  color: #e2e8f0;
}

.terminal-prompt {
  color: var(--accent-cyan);
}

.output-line {
  color: #94a3b8;
}

.success-line {
  color: #4ade80;
}

/* Product overview video */
.overview-section {
  padding-block: 2rem 4.5rem;
}

.overview-player {
  margin: 0 auto;
  max-width: 920px;
}

.overview-player-frame {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.overview-player video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #111214;
}

.overview-caption {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.55rem;
  justify-content: center;
  margin-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

/* Features / Gateway Grid */
.features-section {
  padding-block: 5rem;
  background: linear-gradient(180deg, transparent 0%, rgba(21, 27, 48, 0.3) 100%);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 700px;
  margin-inline: auto;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem 2rem;
  transition: var(--transition-smooth);
  box-shadow: 0 1px 3px rgba(0,0,0,0.01), 0 10px 30px rgba(0,0,0,0.01);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-violet);
  box-shadow: 0 10px 40px rgba(79, 70, 229, 0.06);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.feature-card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-card-text {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Architecture Section */
.architecture-section {
  padding-block: 5rem;
}

.arch-visualizer-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.arch-flow-container {
  width: 100%;
  overflow-x: auto;
  margin-bottom: 2rem;
}

.arch-flow-svg {
  width: 100%;
  min-width: 700px;
  height: auto;
  display: block;
}

.arch-toggle-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.arch-tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 0.6rem 1.4rem;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.arch-tab-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--text-primary);
}

.arch-tab-btn.active {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.1) 0%, rgba(127, 0, 255, 0.1) 100%);
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.1);
}

.arch-description-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
}

.arch-box-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--accent-cyan);
}

.arch-box-body {
  font-size: 0.95rem;
}

/* Interactive AI Router Section */
.router-demo-section {
  padding-block: 5rem;
  background: linear-gradient(180deg, rgba(21, 27, 48, 0.3) 0%, transparent 100%);
}

.router-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  align-items: stretch;
}

.router-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.panel-header {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.control-group {
  margin-bottom: 2rem;
}

.control-label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

/* Select Form Inputs */
.form-select, .form-control {
  width: 100%;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-size: 1rem;
  min-height: 48px; /* Accessible standard */
  transition: var(--transition-smooth);
}

.form-select:focus, .form-control:focus {
  border-color: var(--border-focus);
  outline: none;
  box-shadow: 0 0 10px rgba(79, 70, 229, 0.08);
}

/* Range Inputs */
.form-range {
  width: 100%;
  margin-block: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  height: 6px;
  border-radius: 5px;
  outline: none;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.25rem;
}

.slider-val {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Checkbox Customization */
.checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
  position: relative;
  user-select: none;
}

/* Hide native checkbox visually */
.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkbox-checkmark {
  display: inline-block;
  min-width: 20px;
  height: 20px;
  background-color: #ffffff;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  position: relative;
  transition: var(--transition-smooth);
  margin-top: 2px;
}

.checkbox-container:hover input ~ .checkbox-checkmark {
  border-color: var(--accent-cyan);
}

.checkbox-container input:checked ~ .checkbox-checkmark {
  background-color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.checkbox-checkmark::after {
  content: "";
  position: absolute;
  display: none;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid #000;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkbox-checkmark::after {
  display: block;
}

.checkbox-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.font-small {
  font-size: 0.8rem;
  line-height: 1.4;
}

/* Simulator Display Panel */
.simulator-console {
  background: #05080e;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1rem;
  font-family: monospace;
  font-size: 0.85rem;
  height: 180px;
  overflow-y: auto;
  margin-bottom: 2rem;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.8);
}

.log-line {
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.text-cyan { color: var(--accent-cyan); }
.text-green { color: var(--success); }
.text-violet { color: #b388ff; }

/* Result Panel */
.routing-result-panel {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
}

.result-model-badge {
  text-align: center;
  margin-bottom: 1.5rem;
}

.result-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.result-value {
  font-size: 1.6rem;
  font-weight: 700;
  font-family: var(--font-display);
}

.results-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius-md);
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.stat-value {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 0.25rem;
}

/* Calculator Section */
.calculator-section {
  padding-block: 5rem;
}

.calculator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.calculator-header {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.input-helper {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

.ratio-display {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  color: var(--accent-cyan-text);
  margin-bottom: 0.5rem;
}

.roi-metric-highlight {
  text-align: center;
  background: rgba(79, 70, 229, 0.03);
  border: 1px dashed rgba(79, 70, 229, 0.2);
  border-radius: var(--border-radius-md);
  padding: 2rem 1rem;
  margin-bottom: 2rem;
}

.roi-label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.roi-value {
  font-size: 2.6rem;
  font-weight: 800;
  font-family: var(--font-display);
}

.calculator-substats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.calc-sub-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 0.75rem;
  text-align: center;
}

.sub-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 1.2;
}

.sub-value {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  margin-top: 0.4rem;
}

/* Cost comparison chart */
.calculator-chart-placeholder {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  height: 160px;
}

.chart-container {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  height: 100%;
}

.chart-bar-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 40%;
}

.chart-bar-wrapper {
  height: 80px;
  width: 28px;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 4px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.chart-bar {
  width: 100%;
  border-radius: 4px;
  transition: height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.current-bar {
  background: #cbd5e1;
}

.novus-bar {
  background: linear-gradient(180deg, var(--accent-violet) 0%, var(--accent-cyan) 100%);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
}

.chart-bar-title {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.chart-bar-legend {
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 0.4rem;
}

/* SDK Code Migration Section */
.code-compare-section {
  padding-block: 5rem;
  background: linear-gradient(180deg, transparent 0%, rgba(21, 27, 48, 0.3) 100%);
}

.code-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.code-box {
  background: #060913;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  font-family: monospace;
  overflow-x: auto;
  transition: var(--transition-smooth);
}

.code-box.active-code {
  border-color: rgba(0, 242, 254, 0.3);
  box-shadow: 0 10px 30px rgba(0, 242, 254, 0.06);
}

.code-box-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 0.75rem;
}

.badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-danger {
  background-color: rgba(255, 23, 68, 0.1);
  color: var(--danger);
}

.badge-success {
  background-color: rgba(0, 230, 118, 0.1);
  color: var(--success);
}

.badge-accent {
  background-color: rgba(14, 116, 144, 0.1);
  color: var(--accent-cyan-text);
}

.code-content {
  font-size: 0.85rem;
  line-height: 1.5;
  color: #c9d1d9;
}

.code-keyword { color: #ff7b72; }
.code-function { color: #d2a6ff; }
.code-string { color: #a5d6ff; }
.code-comment { color: #8b949e; }

/* Sectors Grid */
.sectors-section {
  padding-block: 5rem;
}

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .sectors-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .sectors-grid {
    grid-template-columns: 1fr;
  }
}

.sector-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.sector-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-cyan);
}

.sector-icon-wrapper {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.sector-card-title {
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.sector-card-text {
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.sector-bullet-list {
  list-style: none;
  font-size: 0.85rem;
}

.sector-bullet-list li {
  position: relative;
  padding-inline-start: 1.25rem;
  margin-bottom: 0.5rem;
}

.sector-bullet-list li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--accent-cyan-text);
}

/* Beta Registration Section */
.register-section {
  padding-block: 6rem;
  background: linear-gradient(180deg, rgba(21, 27, 48, 0.4) 0%, transparent 100%);
}

.register-container {
  max-width: 1000px;
}

.register-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.register-heading {
  font-size: 2.4rem;
  margin-block: 1rem 1.5rem;
}

.register-text {
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.trust-indicators {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.trust-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-color: rgba(14, 116, 144, 0.1);
  color: var(--accent-cyan-text);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.8rem;
}

.register-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.beta-form .form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* Success Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(5, 8, 15, 0.9);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 1rem;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 500px;
  padding: 3rem 2.5rem;
  text-align: center;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 20px 50px rgba(0, 242, 254, 0.15);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 2rem;
  cursor: pointer;
  line-height: 0.5;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: rgba(0, 230, 118, 0.1);
  color: var(--success);
  font-size: 2rem;
  border-radius: 50%;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(0, 230, 118, 0.3);
}

.modal-title {
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

.modal-body-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.modal-actions {
  display: flex;
  justify-content: center;
}

/* Footer */
.main-footer {
  background-color: #0b0f19;
  border-top: 1px solid var(--border-color);
  padding-block: 5rem 2rem;
  color: #cbd5e1;
}

.main-footer .logo-text {
  color: #ffffff;
}

.main-footer p,
.main-footer li,
.main-footer a {
  color: #94a3b8;
}

.main-footer a:hover {
  color: var(--accent-cyan);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  gap: 3rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.footer-left {
  max-width: 320px;
}

.footer-tagline {
  font-size: 0.9rem;
  margin-top: 1rem;
}

.footer-links-group {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* Animations */
@keyframes pulse-glow {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.5);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 8px rgba(0, 242, 254, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 242, 254, 0);
  }
}

/* Scroll-driven animations with feature detection */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes fade-in-up {
      from {
        opacity: 0;
        transform: translateY(40px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    
    .feature-card, .sector-card, .router-card, .calculator-card {
      animation: fade-in-up auto linear backwards;
      animation-timeline: view();
      animation-range: entry 5% entry 40%;
    }
  }
}

/* Focus styling for Accessibility */
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 4px;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Accessibility: Visually Hidden class */
.visually-hidden {
  position: absolute;
  clip-path: inset(50%);
  overflow: hidden;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  white-space: nowrap;
}

/* Responsive Media Queries */
@media (max-width: 1100px) {
  .nav-trigger,
  .nav-menu a {
    white-space: nowrap;
  }
}

@media (max-width: 900px) {
  .register-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .header-container {
    padding-inline: 1rem;
    gap: 1rem;
  }

  .main-nav .nav-root {
    gap: 1rem;
  }

  .nav-menu {
    min-width: 22rem;
  }
}

@media (max-width: 720px) {
  .logo-beta,
  .nav-trigger--link {
    display: none;
  }

  .nav-menu {
    left: 0;
    right: auto;
  }
}

@media (max-width: 600px) {
  html {
    font-size: 15px;
  }

  .header-cta .btn {
    display: none;
  }

  .top-banner {
    flex-wrap: wrap;
    padding-inline: 0.75rem;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .calculator-substats {
    grid-template-columns: 1fr;
  }
  
  .results-stats-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   New Premium Sections: Control Plane, Deployments, Blog, & Case Studies
   ========================================================================== */

/* Control Plane Dashboard Section */
.control-plane-section {
  padding-block: 5rem;
  background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.02) 100%);
}

.control-plane-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  align-items: flex-start;
}

@media (max-width: 900px) {
  .control-plane-container {
    grid-template-columns: 1fr;
  }
}

.control-plane-nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@media (max-width: 900px) {
  .control-plane-nav {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }
}

.cp-tab-btn {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.25rem 1.5rem;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
  overflow: hidden;
}

@media (max-width: 900px) {
  .cp-tab-btn {
    white-space: nowrap;
    padding: 0.75rem 1.25rem;
  }
}

.cp-tab-btn::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-violet), var(--accent-cyan));
  transform: scaleY(0);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.cp-tab-btn:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
}

.cp-tab-btn.active {
  border-color: rgba(99, 102, 241, 0.3);
  background: rgba(99, 102, 241, 0.05);
  color: var(--text-primary);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.05);
}

.cp-tab-btn.active::before {
  transform: scaleY(1);
}

.cp-tab-icon {
  font-size: 1.25rem;
}

.cp-tab-text-group {
  display: flex;
  flex-direction: column;
}

.cp-tab-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.cp-tab-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

@media (max-width: 900px) {
  .cp-tab-desc {
    display: none;
  }
}

/* Console & Dashboard Visuals */
.control-plane-display {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  min-height: 480px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cp-display-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
}

.cp-display-tag {
  display: inline-flex;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 100px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent-violet);
  margin-bottom: 0.75rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.cp-display-title {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.cp-display-description {
  font-size: 1rem;
  color: var(--text-secondary);
}

.cp-display-body {
  flex-grow: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
  .cp-display-body {
    grid-template-columns: 1fr;
  }
}

/* Custom Telemetry Visuals */
.cp-visual-panel {
  background: rgba(3, 7, 18, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Charts / Gauges for Control Plane pillars */
.cp-chart-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 180px;
  position: relative;
}

/* Pure CSS Circle Gauge for Observe / Govern */
.circular-gauge {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: conic-gradient(var(--accent-cyan) 0deg 280deg, rgba(0, 0, 0, 0.06) 280deg 360deg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.circular-gauge::after {
  content: '';
  position: absolute;
  width: 110px;
  height: 110px;
  background: #ffffff;
  border-radius: 50%;
}

.gauge-value {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.gauge-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Pure CSS Bar chart for Eval */
.eval-chart {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  width: 100%;
  height: 130px;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.eval-chart-bar {
  width: 24px;
  background: linear-gradient(180deg, var(--accent-violet) 0%, rgba(99, 102, 241, 0.3) 100%);
  border-radius: 4px;
  position: relative;
  animation: heightGrow 1s ease-out;
}

.eval-chart-bar::before {
  content: attr(data-val);
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-cyan-text);
}

.eval-chart-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 0.5rem;
}

/* Deploy Node Connector Animation */
.deploy-mesh-visual {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding-inline: 1rem;
}

.mesh-node {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #ffffff;
  border: 1.5px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
  z-index: 2;
  box-shadow: 0 4px 10px rgba(6, 182, 212, 0.1);
}

.mesh-node.source {
  border-color: var(--accent-violet);
  box-shadow: 0 4px 10px rgba(79, 70, 229, 0.1);
}

.mesh-line {
  flex-grow: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-violet), var(--accent-cyan));
  position: relative;
  z-index: 1;
}

.mesh-pulse {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  top: -3px;
  left: 0;
  animation: pulseMove 2s infinite linear;
  box-shadow: 0 0 8px #ffffff;
}

/* Scaling clusters animation */
.scale-clusters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  align-content: center;
  max-width: 220px;
}

.cluster-dot {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: var(--border-color);
  transition: var(--transition-smooth);
}

.cluster-dot.active {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.4);
}

.cluster-dot.scaling {
  animation: pulseScale 1.5s infinite ease-in-out;
}

/* Sidebar detail notes */
.cp-detail-notes {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 1.25rem;
}

.cp-note-item {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
  border-radius: var(--border-radius-md);
  transition: var(--transition-smooth);
}

.cp-note-item:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.1);
}

.cp-note-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cp-note-icon {
  color: var(--accent-cyan-text);
}

.cp-note-body {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Deployment Agnostic Section */
.deployments-section {
  padding-block: 5rem;
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.02) 0%, transparent 100%);
  border-top: 1px solid var(--border-color);
}

.deployments-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

@media (max-width: 900px) {
  .deployments-grid {
    grid-template-columns: 1fr;
  }
}

.deploy-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.deploy-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow);
}

.deploy-card-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.deploy-card-title {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.deploy-card-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.deploy-card-platforms {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.platform-badge {
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  color: var(--text-secondary);
}

.deploy-action-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  max-width: 800px;
  margin-inline: auto;
  text-align: center;
}

.deploy-action-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.deploy-action-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.deploy-cmd-widget {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.25rem;
  border-radius: var(--border-radius-md);
  font-family: monospace;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: 100%;
}

.deploy-cmd-text {
  color: var(--accent-cyan-text);
}

.btn-copy-cmd {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-smooth);
  font-size: 0.85rem;
}

.btn-copy-cmd:hover {
  color: var(--text-primary);
}

/* Insights (Case Studies & Blog) Section */
.insights-section {
  padding-block: 5rem;
  border-top: 1px solid var(--border-color);
}

.insights-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.insights-tab-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.75rem;
  border-radius: 100px;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.insights-tab-btn:hover {
  border-color: var(--accent-violet);
  color: var(--text-primary);
}

.insights-tab-btn.active {
  background: var(--accent-violet);
  border-color: var(--accent-violet);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

@media (max-width: 900px) {
  .insights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .insights-grid {
    grid-template-columns: 1fr;
  }
}

.insight-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.insight-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-violet);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.08);
}

.insight-card-image-placeholder {
  height: 160px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.insight-card-image-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, transparent 30%, rgba(3, 7, 18, 0.4) 100%);
}

.insight-card-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.insight-card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.insight-card-category {
  color: var(--accent-cyan-text);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.insight-card-title {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.insight-card-excerpt {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.insight-card-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-violet);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
}

.insight-card:hover .insight-card-link {
  color: var(--accent-cyan-text);
}

/* Insight Slide-over Reader Drawer */
.insight-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.insight-drawer-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.insight-drawer {
  position: fixed;
  top: 0;
  right: -600px;
  width: 100%;
  max-width: 600px;
  height: 100vh;
  background: #ffffff;
  border-left: 1px solid var(--border-color);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  box-shadow: -20px 0 50px rgba(15, 23, 42, 0.08);
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.insight-drawer-overlay.active .insight-drawer {
  right: 0;
}

.insight-drawer-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-secondary);
}

.btn-close-drawer {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 0.5;
}

.btn-close-drawer:hover {
  color: var(--text-primary);
}

.insight-drawer-body {
  padding: 2.5rem 2rem;
  overflow-y: auto;
  flex-grow: 1;
}

.drawer-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.drawer-category {
  color: var(--accent-cyan-text);
  font-weight: 600;
  text-transform: uppercase;
}

.drawer-title {
  font-size: 2rem;
  line-height: 1.3;
  margin-bottom: 2rem;
}

.drawer-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.drawer-text p {
  margin-bottom: 1.5rem;
}

.drawer-text h3 {
  color: var(--text-primary);
  margin-block: 2rem 1rem;
  font-size: 1.3rem;
}

.drawer-text blockquote {
  border-left: 4px solid var(--accent-violet);
  padding-left: 1.5rem;
  margin-block: 1.5rem;
  font-style: italic;
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.03);
  padding: 1rem 1.5rem;
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
}

.drawer-text pre {
  background: #030712;
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: var(--border-radius-md);
  overflow-x: auto;
  margin-block: 1.5rem;
  font-family: monospace;
  font-size: 0.85rem;
}

/* Animations */
@keyframes pulseMove {
  0% { left: 0%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

@keyframes pulseScale {
  0% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 0.6; }
}

@keyframes heightGrow {
  from { height: 0; }
}

/* ==========================================================================
   Subscription page
   ========================================================================== */
.subscription-page .sub-hero {
  padding-block: 4.5rem 1.5rem;
  text-align: center;
}

.subscription-page .sub-hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 760px;
}

.sub-plans-section {
  padding-block: 1.5rem 4rem;
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.25rem 2rem;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.01), 0 10px 30px rgba(0, 0, 0, 0.01);
  transition: var(--transition-smooth);
}

.plan-card:hover,
.plan-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--accent-violet);
  box-shadow: 0 10px 40px rgba(79, 70, 229, 0.08);
  outline: none;
}

.plan-card--selected {
  border-color: var(--accent-violet);
  box-shadow: 0 10px 40px rgba(79, 70, 229, 0.12);
}

.plan-card--soon {
  cursor: default;
  opacity: 0.78;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.plan-card--soon:hover,
.plan-card--soon:focus-visible {
  transform: none;
  border-color: var(--border-color);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.01), 0 10px 30px rgba(0, 0, 0, 0.01);
}

.plan-card--soon-pulse {
  animation: k8sSoonPulse 0.55s ease;
}

@keyframes k8sSoonPulse {
  0% { transform: scale(1); }
  40% { transform: scale(0.985); }
  100% { transform: scale(1); }
}

.coming-soon-badge {
  position: absolute;
  top: 1.15rem;
  right: 1.15rem;
  background: rgba(234, 88, 12, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(234, 88, 12, 0.25);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 9999px;
}

.plan-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.plan-kicker {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--accent-cyan-text);
  margin-bottom: 0.5rem;
}

.plan-card--soon .plan-kicker {
  color: var(--text-muted);
}

.plan-title {
  font-size: 1.55rem;
  margin-bottom: 0.75rem;
}

.plan-title-sub {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.plan-text {
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.plan-cta {
  margin-top: auto;
  font-weight: 700;
  color: var(--accent-violet);
}

.plan-cta--muted {
  color: var(--text-muted);
  font-weight: 600;
}

.k8s-toast {
  margin-top: 1.25rem;
  text-align: center;
  color: var(--accent-amber);
  font-weight: 600;
}

.sub-detail-section {
  padding-block: 0 5rem;
}

.sub-detail-container {
  max-width: 820px;
}

.install-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
}

.install-card .register-heading {
  margin-top: 0.85rem;
}

.install-toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.copy-status {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--success);
}

.install-terminal {
  max-width: none;
}

.install-pre {
  margin: 0;
  white-space: pre-wrap;
  overflow-x: auto;
}

.install-pre code {
  color: #e2e8f0;
  font-family: inherit;
  font-size: 0.85rem;
  line-height: 1.65;
}

@media (max-width: 800px) {
  .plan-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Instrument restyle — theme-aware surfaces, copper signal, hairlines
   ========================================================================== */

.hero-section,
.overview-section,
.features-section,
.control-plane-section,
.architecture-section,
.deployments-section,
.router-demo-section,
.calculator-section,
.code-compare-section,
.sectors-section,
.insights-section,
.register-section,
.main-footer,
.subscription-page main {
  position: relative;
  z-index: 1;
}

.hero-badge {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.badge-dot {
  background-color: var(--success);
  animation: breathe 2.6s var(--ease-soft) infinite;
}

.badge-text {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
}

.hero-title {
  letter-spacing: -0.03em;
  font-weight: 560;
}

.hero-actions .btn {
  padding: 10px 16px;
  font-size: 13.5px;
  min-height: 42px;
}

.terminal-container {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
}

.terminal-header {
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
}

.terminal-title {
  color: var(--ink-3);
  font-family: var(--font-mono);
}

.terminal-body {
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.terminal-line {
  color: var(--ink);
}

.output-line {
  color: var(--ink-3);
}

.success-line {
  color: var(--success);
}

.features-section,
.router-demo-section,
.code-compare-section,
.register-section,
.control-plane-section,
.deployments-section {
  background: transparent;
}

.feature-card,
.router-card,
.calculator-card,
.sector-card,
.deploy-card,
.insight-card,
.plan-card,
.register-form-card,
.install-card,
.arch-visualizer-card,
.control-plane-display,
.deploy-action-box {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  border-radius: var(--r-lg);
}

.feature-card:hover,
.sector-card:hover,
.deploy-card:hover,
.insight-card:hover,
.plan-card:hover,
.plan-card:focus-visible {
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.plan-card--selected {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  box-shadow: var(--shadow-sm);
}

.plan-card--soon {
  background: var(--surface-2);
  opacity: 0.9;
}

.plan-card--soon:hover,
.plan-card--soon:focus-visible {
  transform: none;
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.coming-soon-badge {
  background: color-mix(in srgb, var(--warn) 12%, transparent);
  color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 28%, transparent);
}

.form-select,
.form-control {
  background-color: var(--input-bg);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--ink);
  min-height: 40px;
  font-size: 13.5px;
  font-family: var(--font-body);
}

.form-select:focus,
.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus);
}

.checkbox-checkmark {
  background-color: var(--surface);
  border: 1px solid var(--line);
}

.checkbox-container:hover input ~ .checkbox-checkmark {
  border-color: var(--accent);
}

.checkbox-container input:checked ~ .checkbox-checkmark {
  background-color: var(--accent);
  border-color: var(--accent);
}

.checkbox-checkmark::after {
  border-color: var(--accent-ink);
}

.slider-val,
.ratio-display {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
}

.simulator-console {
  background: var(--surface-2);
  border: 1px solid var(--line);
  box-shadow: none;
  font-family: var(--font-mono);
}

.log-line {
  color: var(--ink-2);
}

.text-violet {
  color: var(--plum);
}

.routing-result-panel,
.arch-description-box,
.roi-metric-highlight,
.calc-sub-box,
.stat-box,
.platform-badge {
  background: var(--surface-2);
  border: 1px solid var(--line-soft);
}

.roi-metric-highlight {
  border-style: dashed;
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.current-bar {
  background: var(--line-strong);
}

.novus-bar {
  background: var(--accent);
  box-shadow: none;
}

.chart-bar-wrapper {
  background: var(--surface-3);
}

.code-box {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}

.code-box.active-code {
  border-color: var(--accent-line);
  box-shadow: var(--shadow-sm);
}

.code-box-header {
  border-bottom: 1px solid var(--line);
}

.code-content {
  color: var(--ink-2);
  font-family: var(--font-mono);
}

.code-keyword { color: var(--danger); }
.code-function { color: var(--plum); }
.code-string { color: var(--teal); }
.code-comment { color: var(--ink-3); }

.badge {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
}

.badge-danger {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 26%, transparent);
}

.badge-success {
  background: var(--ok-soft);
  color: var(--success);
  border-color: color-mix(in srgb, var(--success) 26%, transparent);
}

.badge-accent {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent-line);
}

.cp-display-tag {
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
}

.arch-tab-btn,
.cp-tab-btn,
.insights-tab-btn {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink-2);
  box-shadow: var(--shadow-sm);
}

.arch-tab-btn:hover,
.cp-tab-btn:hover,
.insights-tab-btn:hover {
  border-color: var(--line-strong);
  color: var(--ink);
  background: var(--surface-2);
}

.arch-tab-btn.active,
.cp-tab-btn.active {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

.insights-tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  box-shadow: var(--shadow-sm);
}

.cp-tab-btn::before {
  background: var(--accent);
}

.cp-visual-panel {
  background: var(--surface-2);
  border: 1px solid var(--line);
}

.circular-gauge {
  background: conic-gradient(var(--teal) 0deg 280deg, var(--surface-3) 280deg 360deg);
}

.circular-gauge::after {
  background: var(--surface);
}

.eval-chart-bar {
  background: linear-gradient(180deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 35%, transparent) 100%);
}

.mesh-node {
  background: var(--surface);
  border-color: var(--teal);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

.mesh-node.source {
  border-color: var(--accent);
}

.mesh-line {
  background: linear-gradient(90deg, var(--accent), var(--teal));
}

.mesh-pulse {
  background: var(--surface);
  box-shadow: 0 0 8px var(--accent);
}

.cluster-dot.active {
  background: var(--accent);
  box-shadow: none;
}

.trust-icon {
  background-color: var(--ok-soft);
  color: var(--success);
}

.modal-overlay,
.insight-drawer-overlay {
  background: color-mix(in srgb, var(--canvas) 55%, transparent);
  backdrop-filter: blur(6px) saturate(1.1);
}

.modal-content {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
}

.modal-close,
.btn-close-drawer,
.btn-copy-cmd {
  background: none;
  border: 0;
  box-shadow: none;
  color: var(--ink-3);
}

.modal-icon {
  background-color: var(--ok-soft);
  border: 1px solid color-mix(in srgb, var(--success) 26%, transparent);
}

.insight-drawer {
  background: var(--surface);
  border-left: 1px solid var(--line);
}

.insight-drawer-header {
  background: var(--surface-2);
}

.drawer-brand {
  font-size: 14px;
}

.drawer-text pre {
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--ink-2);
}

.drawer-text blockquote {
  border-left-color: var(--accent);
  background: var(--accent-soft);
}

.insight-card-image-placeholder {
  background: var(--surface-3);
  border-bottom: 1px solid var(--line);
}

.insight-card-image-placeholder::after {
  display: none;
}

.insight-card-link,
.plan-cta,
.arch-box-title {
  color: var(--accent);
}

.main-footer {
  background: var(--rail);
  border-top: 1px solid var(--line);
  color: var(--ink-2);
}

.main-footer .logo-text,
.main-footer .footer-col h4 {
  color: var(--ink);
}

.main-footer p,
.main-footer li,
.main-footer a {
  color: var(--ink-3);
}

.main-footer a:hover,
.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--line-soft);
  color: var(--ink-3);
}

.register-form-card {
  box-shadow: var(--shadow);
}

.deploy-cmd-widget {
  background: var(--surface);
  border: 1px solid var(--line);
}

.deploy-cmd-text {
  color: var(--accent);
  font-family: var(--font-mono);
}

.install-pre code {
  color: var(--ink-2);
}

.panel-header,
.calculator-header {
  border-bottom-color: var(--line);
}

input:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

::-webkit-scrollbar-track {
  background: var(--canvas);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ink-3);
}

@keyframes breathe {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--success) 45%, transparent); }
  55% { box-shadow: 0 0 0 4px transparent; }
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 color-mix(in srgb, var(--success) 45%, transparent); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px transparent; }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 transparent; }
}

@media (prefers-reduced-motion: reduce) {
  .atmosphere-light,
  .badge-dot {
    animation: none;
  }
}

/* ==========================================================================
   Control Index assessment
   ========================================================================== */

.assess-shell {
  position: relative;
  z-index: 1;
  padding-block: 2.5rem 5rem;
}

.assess-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.assess-rail {
  position: sticky;
  top: 5.5rem;
  padding: 1.25rem 1.1rem 1.1rem;
}

.assess-live {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 1rem 0 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
}

.assess-live-score {
  font-family: var(--font-mono);
  font-size: 2rem;
  letter-spacing: -0.04em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.assess-bands {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.3rem 0.6rem;
  margin: 0 0 0.65rem;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.assess-bands--inline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.85rem;
  margin: 0.75rem 0 0;
}

.assess-bands li {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.assess-swatch {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  flex: none;
}

.assess-swatch--low,
.assess-band--low { --band: var(--danger); --band-soft: var(--danger-soft); }
.assess-swatch--mid,
.assess-band--mid { --band: var(--warn); --band-soft: color-mix(in srgb, var(--warn) 16%, transparent); }
.assess-swatch--high,
.assess-band--high { --band: var(--teal); --band-soft: color-mix(in srgb, var(--teal) 16%, transparent); }
.assess-swatch--top,
.assess-band--top { --band: var(--success); --band-soft: var(--ok-soft); }

.assess-swatch--low { background: var(--danger); }
.assess-swatch--mid { background: var(--warn); }
.assess-swatch--high { background: var(--teal); }
.assess-swatch--top { background: var(--success); }

.assess-live-score.assess-band--low,
.assess-live-score.assess-band--mid,
.assess-live-score.assess-band--high,
.assess-live-score.assess-band--top {
  color: var(--band);
}

.assess-radar {
  max-width: 220px;
  margin-inline: auto;
}

.assess-radar--result {
  max-width: 240px;
}

.assess-radar svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.assess-radar-ring {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
}

.assess-radar-axis {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  opacity: 0.45;
}

.assess-radar-fill {
  fill: var(--band-soft, var(--accent-soft));
  stroke: var(--band, var(--accent));
  stroke-width: 1.5;
}

.assess-radar-dot {
  fill: var(--surface);
  stroke: currentColor;
  stroke-width: 1.6;
}

.assess-radar-dot.is-on {
  fill: currentColor;
  stroke: currentColor;
}

.assess-radar-label {
  fill: currentColor;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.assess-cat--residency { color: var(--accent); }
.assess-cat--router { color: var(--teal); }
.assess-cat--guardrails { color: var(--plum); }
.assess-cat--traces { color: var(--sand); }
.assess-cat--finops { color: var(--success); }
.assess-cat--plane { color: #5b6abf; }

[data-theme="dark"] .assess-cat--plane { color: #8b96e0; }

.assess-legend dt {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  margin: 0;
  flex: none;
}

.assess-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 0.75rem;
  margin: 0.25rem 0 0;
}

.assess-legend div {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.assess-legend dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.assess-card {
  padding: 1.6rem 1.5rem 1.5rem;
}

.assess-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 0.85rem;
}

.assess-lead {
  text-align: left;
  max-width: 58ch;
  margin-bottom: 1.25rem;
}

.assess-lead em {
  font-style: italic;
  color: var(--accent);
}

.assess-stakes {
  list-style: none;
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  color: var(--ink-2);
  font-size: 0.92rem;
}

.assess-brief-bar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.65rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.assess-timer.is-due,
.assess-pace {
  color: var(--ink-3);
}

.assess-meter {
  height: 3px;
  border-radius: 999px;
  background: var(--surface-3);
  margin-bottom: 1.1rem;
  overflow: hidden;
}

.assess-meter span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width 320ms var(--ease);
}

.assess-options {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 1.1rem 0 1.1rem;
}

.assess-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  width: 100%;
  text-align: left;
  padding: 0.9rem 1rem;
  background: var(--surface-2);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: none;
  min-height: 0;
}

.assess-option:hover {
  transform: none;
  background: var(--surface);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.assess-option.is-selected {
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.assess-option-label {
  font-size: 0.95rem;
  font-weight: 560;
}

.assess-option-detail {
  font-size: 0.82rem;
  color: var(--ink-3);
  line-height: 1.45;
  font-weight: 400;
}

.assess-result {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.assess-score-row {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  margin-bottom: 0.75rem;
}

.assess-gauge {
  width: 108px;
  height: 108px;
  flex: none;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--band, var(--accent)) var(--assess-score, 0%), var(--surface-3) 0);
  position: relative;
}

.assess-gauge span {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  letter-spacing: -0.04em;
  color: var(--band, var(--ink));
}

.progress-fill.assess-band--low,
.progress-fill.assess-band--mid,
.progress-fill.assess-band--high,
.progress-fill.assess-band--top {
  background: var(--band);
}

.assess-gauge::after {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 50%;
  background: var(--surface);
}

.assess-dims {
  list-style: none;
  margin: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.assess-dim-head {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  color: var(--ink-2);
}

.assess-dim-val {
  font-family: var(--font-mono);
  color: var(--ink-3);
}

.assess-recs {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.assess-rec {
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--surface-2);
}

.assess-rec-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.assess-rec h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.assess-rec p {
  font-size: 0.88rem;
  margin: 0;
}

.assess-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.assess-teaser {
  position: relative;
  z-index: 1;
  padding-block: 4rem;
}

.assess-teaser-card {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.75rem 1.8rem;
}

.assess-teaser-card h2 {
  font-size: 1.55rem;
  margin-bottom: 0.4rem;
}

@media (max-width: 900px) {
  .assess-layout {
    grid-template-columns: 1fr;
  }

  .assess-rail {
    position: relative;
    top: 0;
  }

  .assess-teaser-card {
    grid-template-columns: 1fr;
  }
}