/* EvoCortexAI visual refresh — adaptive light/dark presentation.
   Loaded after styles.css so existing semantic structure and Saturn tokens remain intact. */

:root {
  --bg: #0b1220;
  --bg-accent: #111d2e;
  --elevated: #182538;
  --text: #f5f8fc;
  --text-secondary: #b9c5d4;
  --accent: #35b9ff;
  --success: #55d990;
  --separator: rgba(196, 214, 235, 0.22);
  --card: rgba(24, 37, 56, 0.94);
  --card-strong: #182538;
  --surface-muted: rgba(255, 255, 255, 0.055);
  --border: var(--separator);
  --border-strong: rgba(53, 185, 255, 0.42);
  --header-bg: rgba(11, 18, 32, 0.82);
  --header-text: rgba(245, 248, 252, 0.94);
  --header-muted: rgba(185, 197, 212, 0.92);
  --section-tint: #101a2a;
  --section-soft: #0e1725;
  --shadow-card: 0 18px 48px rgba(0, 0, 0, 0.18);
  --shadow-float: 0 24px 64px rgba(0, 0, 0, 0.26);
  --hero-overlay: rgba(8, 15, 27, 0.67);
  --hero-overlay-strong: rgba(8, 15, 27, 0.88);
  --theme-control-bg: rgba(255, 255, 255, 0.06);
  color-scheme: dark;
}

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

:root[data-theme="light"] {
  --bg: #f4f7fb;
  --bg-accent: #eaf0f7;
  --elevated: #ffffff;
  --text: #122033;
  --text-secondary: #586a80;
  --accent: #0077c8;
  --success: #138a55;
  --separator: rgba(24, 55, 88, 0.17);
  --card: rgba(255, 255, 255, 0.95);
  --card-strong: #ffffff;
  --surface-muted: rgba(23, 74, 124, 0.055);
  --border: var(--separator);
  --border-strong: rgba(0, 119, 200, 0.30);
  --header-bg: rgba(248, 251, 255, 0.86);
  --header-text: rgba(18, 32, 51, 0.95);
  --header-muted: rgba(70, 88, 109, 0.90);
  --section-tint: #eaf0f7;
  --section-soft: #eef3f8;
  --shadow-card: 0 18px 44px rgba(47, 75, 105, 0.10);
  --shadow-float: 0 24px 64px rgba(37, 72, 108, 0.17);
  --hero-overlay: rgba(244, 248, 253, 0.70);
  --hero-overlay-strong: rgba(244, 248, 253, 0.91);
  --theme-control-bg: rgba(18, 53, 88, 0.055);
  --accent-strong: #006cb8;
  color-scheme: light;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #f4f7fb;
    --bg-accent: #eaf0f7;
    --elevated: #ffffff;
    --text: #122033;
    --text-secondary: #586a80;
    --accent: #0077c8;
    --success: #138a55;
    --separator: rgba(24, 55, 88, 0.17);
    --card: rgba(255, 255, 255, 0.95);
    --card-strong: #ffffff;
    --surface-muted: rgba(23, 74, 124, 0.055);
    --border: var(--separator);
    --border-strong: rgba(0, 119, 200, 0.30);
    --header-bg: rgba(248, 251, 255, 0.86);
    --header-text: rgba(18, 32, 51, 0.95);
    --header-muted: rgba(70, 88, 109, 0.90);
    --section-tint: #eaf0f7;
    --section-soft: #eef3f8;
    --shadow-card: 0 18px 44px rgba(47, 75, 105, 0.10);
    --shadow-float: 0 24px 64px rgba(37, 72, 108, 0.17);
    --hero-overlay: rgba(244, 248, 253, 0.70);
    --hero-overlay-strong: rgba(244, 248, 253, 0.91);
    --theme-control-bg: rgba(18, 53, 88, 0.055);
    --accent-strong: #006cb8;
    color-scheme: light;
  }
}

html {
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(circle at 15% 0%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 34rem),
    var(--bg);
  transition: background-color 180ms ease, color 180ms ease;
}

::selection {
  background: color-mix(in srgb, var(--accent) 26%, transparent);
}

.container {
  width: min(1180px, calc(100% - (var(--page-padding) * 2)));
}

.section {
  padding: clamp(56px, 7vw, 84px) 0;
}

.section-tint,
.section[style*="background:rgba(5,15,28"] {
  background: var(--section-tint) !important;
  border-color: var(--border) !important;
}

.page-header {
  padding-top: calc(var(--header-height) + 72px);
  padding-bottom: 56px;
  background:
    radial-gradient(circle at 18% 22%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 26rem),
    transparent;
}

.site-header {
  background: var(--header-bg) !important;
  border-color: var(--border) !important;
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  backdrop-filter: blur(22px) saturate(150%);
}

.site-brand,
.site-nav a,
.mobile-menu a {
  color: var(--header-text) !important;
}

.site-nav a:not([aria-current="page"]),
.mobile-menu a:not([aria-current="page"]) {
  color: var(--header-muted) !important;
}

.site-nav a:hover,
.mobile-menu a:hover {
  color: var(--text) !important;
}

.site-actions {
  gap: 10px !important;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--theme-control-bg);
  color: var(--header-text);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--accent) 10%, var(--theme-control-bg));
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero {
  min-height: min(720px, calc(100vh - 24px));
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 56px) 0 80px;
  background-image:
    linear-gradient(180deg, var(--hero-overlay), var(--hero-overlay-strong)),
    linear-gradient(90deg, color-mix(in srgb, var(--bg) 92%, transparent) 0%, color-mix(in srgb, var(--bg) 48%, transparent) 58%, color-mix(in srgb, var(--bg) 68%, transparent) 100%),
    url("/background.jpeg") !important;
}

.hero::before {
  background:
    radial-gradient(circle at 24% 40%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 42%),
    radial-gradient(circle at 78% 38%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 28rem) !important;
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: clamp(36px, 7vw, 90px);
  align-items: center;
}

.hero-copy {
  max-width: 760px;
}

.hero-headline,
.hero h1,
.hero__content h1 {
  font-size: clamp(2.8rem, 6.2vw, 5.15rem) !important;
  max-width: 12ch !important;
  letter-spacing: -0.055em !important;
}

.hero-subhead,
.hero__lede {
  color: color-mix(in srgb, var(--text) 88%, var(--text-secondary)) !important;
}

.hero-visual {
  position: relative;
  min-height: 440px;
  display: grid;
  place-items: center;
  perspective: 900px;
}

.hero-visual::before {
  content: "";
  position: absolute;
  width: min(100%, 410px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, color-mix(in srgb, var(--accent) 16%, transparent), transparent 63%);
  filter: blur(8px);
}

.hero-app-icon {
  position: absolute;
  width: clamp(132px, 15vw, 190px);
  aspect-ratio: 1;
  border-radius: 28%;
  box-shadow: var(--shadow-float);
  transform: translateZ(0);
  transition: transform 220ms ease, filter 220ms ease;
}

.hero-app-icon img {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  object-fit: cover;
}

.hero-app-icon--one {
  transform: translate(-42%, -34%) rotate(-7deg);
  z-index: 3;
}

.hero-app-icon--container {
  transform: translate(42%, -4%) rotate(6deg) scale(0.90);
  z-index: 2;
}

.hero-app-icon--nutri {
  transform: translate(-8%, 54%) rotate(2deg) scale(0.80);
  z-index: 1;
}

.hero-visual:hover .hero-app-icon--one {
  transform: translate(-45%, -38%) rotate(-5deg) scale(1.025);
}

.hero-visual:hover .hero-app-icon--container {
  transform: translate(45%, -7%) rotate(4deg) scale(0.925);
}

.hero-visual:hover .hero-app-icon--nutri {
  transform: translate(-8%, 57%) rotate(0deg) scale(0.82);
}

.card,
.system-card,
.platform-card,
.plane-box,
.metric-card,
.benchmark-panel {
  background: var(--card) !important;
  border-color: var(--border) !important;
  box-shadow: var(--shadow-card);
}

.system-card,
.platform-card,
.card {
  transition: transform 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.system-card:hover,
.platform-card:hover,
.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 28%, var(--border)) !important;
}

.system-card__head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.system-card__head .system-label,
.system-card__head .system-name {
  margin-bottom: 3px;
}

.product-icon {
  width: 64px;
  height: 64px;
  flex: 0 0 64px;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.system-card--featured {
  border-color: color-mix(in srgb, var(--accent) 22%, var(--border)) !important;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--accent) 6%, var(--card)), var(--card)) !important;
}

.plane-diagram {
  gap: 6px !important;
}

.plane-box {
  position: relative;
  overflow: hidden;
}

.plane-box::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: color-mix(in srgb, var(--accent) 72%, transparent);
}

.law-box,
.cta-box {
  background: var(--card) !important;
  box-shadow: var(--shadow-card);
}

footer {
  background: color-mix(in srgb, var(--bg) 95%, var(--bg-accent)) !important;
  border-color: var(--border) !important;
}

dialog {
  color: var(--text);
  background: var(--card-strong);
  border-color: var(--border) !important;
  box-shadow: var(--shadow-float);
}

dialog [style*="background:rgba(4,14,29"] {
  background: var(--surface-muted) !important;
}

:root[data-theme="light"] .site-brand__mark,
:root[data-theme="light"] img[src="/EvoCortex_Logo_Nav.svg"] {
  filter: brightness(0.28) saturate(0.55);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .site-brand__mark,
  :root:not([data-theme]) img[src="/EvoCortex_Logo_Nav.svg"] {
    filter: brightness(0.28) saturate(0.55);
  }
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
  }

  .hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 320px;
    margin-top: -12px;
  }

  .hero-app-icon {
    width: clamp(112px, 30vw, 164px);
  }
}

@media (max-width: 640px) {
  .section {
    padding: 48px 0;
  }

  .hero {
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 52px;
  }

  .hero-headline,
  .hero h1,
  .hero__content h1 {
    font-size: clamp(2.55rem, 12vw, 3.7rem) !important;
  }

  .hero-visual {
    min-height: 260px;
  }

  .product-icon {
    width: 56px;
    height: 56px;
    flex-basis: 56px;
    border-radius: 16px;
  }

  .theme-toggle {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}