/*
 * Universo Leça Design System
 * Two visual modes, one shared brand:
 * - institutional: clarity, information and frequent tasks
 * - immersive: storytelling, heritage and strategic experiences
 */

:root {
  --ul-green-950: #010f0c;
  --ul-green-900: #011713;
  --ul-green-800: #022e26;
  --ul-green-700: #034638;
  --ul-green-600: #045a4a;
  --ul-green-500: #056b57;
  --ul-green-400: #339787;
  --ul-mint: #5ecfb1;
  --ul-mint-soft: #a7e6d4;

  --ul-white: #ffffff;
  --ul-canvas: #f3f7f5;
  --ul-surface: #ffffff;
  --ul-ink: #10211c;
  --ul-muted: #60716b;
  --ul-line: rgba(3, 70, 56, 0.12);
  --ul-line-dark: rgba(255, 255, 255, 0.09);

  --ul-radius-sm: 0.75rem;
  --ul-radius-md: 1rem;
  --ul-radius-lg: 1.5rem;
  --ul-radius-pill: 999px;

  --ul-shadow-sm: 0 8px 24px rgba(1, 23, 19, 0.08);
  --ul-shadow-md: 0 18px 55px rgba(1, 23, 19, 0.14);
  --ul-shadow-dark: 0 24px 70px rgba(0, 0, 0, 0.38);

  --ul-space-1: 0.25rem;
  --ul-space-2: 0.5rem;
  --ul-space-3: 0.75rem;
  --ul-space-4: 1rem;
  --ul-space-6: 1.5rem;
  --ul-space-8: 2rem;
  --ul-space-12: 3rem;
  --ul-space-16: 4rem;

  --ul-ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  background: var(--ul-green-950);
}

body {
  font-family: 'Poppins', sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a,
button,
input,
select,
textarea {
  -webkit-tap-highlight-color: transparent;
}

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 3px solid var(--ul-mint) !important;
  outline-offset: 3px !important;
}

::selection {
  background: var(--ul-mint);
  color: var(--ul-green-950);
}

/* Institutional mode */
body[data-design-mode="institutional"] {
  min-height: 100vh;
  background:
    radial-gradient(circle at 82% 10%, rgba(5, 107, 87, 0.34), transparent 32rem),
    radial-gradient(circle at 8% 48%, rgba(94, 207, 177, 0.09), transparent 34rem),
    linear-gradient(145deg, #010907 0%, var(--ul-green-950) 48%, var(--ul-green-900) 100%);
  background-attachment: fixed;
}

body[data-design-mode="institutional"]::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000, transparent 70%);
}

body[data-design-mode="institutional"] > .min-h-screen {
  position: relative;
  width: 100%;
  padding-top: clamp(1.5rem, 4vw, 3rem) !important;
  padding-bottom: clamp(3rem, 7vw, 6rem) !important;
}

body[data-design-mode="institutional"]:not([data-page="home"]) > .min-h-screen > a:first-child {
  display: inline-flex;
  align-items: center;
  align-self: center;
  justify-content: center;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem) !important;
  padding: 0.6rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition:
    transform 0.25s var(--ul-ease),
    background 0.25s,
    border-color 0.25s;
}

body[data-design-mode="institutional"]:not([data-page="home"]) > .min-h-screen > a:first-child:hover {
  transform: translateY(-2px);
  border-color: rgba(94, 207, 177, 0.28);
  background: rgba(255, 255, 255, 0.065);
}

body[data-design-mode="institutional"] > .min-h-screen > a:first-child img,
body[data-design-mode="institutional"] > .min-h-screen > img:first-child {
  width: clamp(4rem, 7vw, 5.5rem) !important;
  height: clamp(4rem, 7vw, 5.5rem) !important;
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.24));
  transition: transform 0.35s var(--ul-ease);
}

body[data-design-mode="institutional"] > .min-h-screen > a:first-child:hover img {
  transform: translateY(-2px);
}

body[data-design-mode="institutional"] > .min-h-screen > h1 {
  max-width: 1100px;
  margin-inline: auto;
  font-size: clamp(2.4rem, 6.3vw, 5.5rem) !important;
  line-height: 0.98 !important;
  letter-spacing: -0.045em !important;
  text-wrap: balance;
  text-shadow: 0 10px 34px rgba(0, 0, 0, 0.18);
}

body[data-design-mode="institutional"] > .min-h-screen > h1 + p {
  color: rgba(255, 255, 255, 0.72) !important;
  line-height: 1.7;
  text-wrap: balance;
}

body[data-design-mode="institutional"]:not([data-page="home"]) > .min-h-screen > h1 + p {
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem) !important;
}

body[data-page="transparency"] > .min-h-screen > h1 + p {
  margin-bottom: 0.5rem !important;
}

body[data-page="transparency"] > .min-h-screen > h1 + p + p {
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem) !important;
}

body[data-design-mode="institutional"] .card {
  border: 1px solid rgba(255, 255, 255, 0.68);
  background: rgba(255, 255, 255, 0.965);
  box-shadow: var(--ul-shadow-sm);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

body[data-design-mode="institutional"] .card:hover {
  transform: none;
  box-shadow: var(--ul-shadow-sm);
}

body[data-design-mode="institutional"] a.card {
  text-decoration: none;
  transition:
    transform 0.3s var(--ul-ease),
    box-shadow 0.3s var(--ul-ease),
    border-color 0.3s ease;
}

body[data-design-mode="institutional"] a.card:hover {
  transform: translateY(-5px) !important;
  border-color: rgba(94, 207, 177, 0.72);
  box-shadow: var(--ul-shadow-md);
}

body[data-design-mode="institutional"] .card h2,
body[data-design-mode="institutional"] .card h3 {
  color: var(--ul-ink);
  letter-spacing: -0.025em;
}

body[data-design-mode="institutional"] .card > :first-child > i,
body[data-design-mode="institutional"] .card > i:first-child {
  filter: drop-shadow(0 5px 12px rgba(5, 107, 87, 0.14));
}

body[data-design-mode="institutional"] .icon-circle {
  width: 4.5rem;
  height: 4.5rem;
  background:
    radial-gradient(circle at 35% 20%, rgba(94, 207, 177, 0.32), transparent 35%),
    linear-gradient(145deg, var(--ul-green-700), var(--ul-green-500));
  box-shadow: 0 13px 28px rgba(3, 70, 56, 0.25);
  transition: transform 0.3s var(--ul-ease);
}

body[data-design-mode="institutional"] a.card:hover .icon-circle {
  transform: translateY(-2px) scale(1.03);
}

body[data-design-mode="institutional"] :where(input, select, textarea) {
  min-height: 2.75rem;
  border-color: rgba(3, 70, 56, 0.18) !important;
  border-radius: var(--ul-radius-sm) !important;
  background-color: #fff;
  color: var(--ul-ink);
  transition: border-color 0.2s, box-shadow 0.2s;
}

body[data-design-mode="institutional"] :where(input, select, textarea):focus {
  border-color: var(--ul-green-500) !important;
  box-shadow: 0 0 0 4px rgba(5, 107, 87, 0.12) !important;
}

body[data-design-mode="institutional"] :where(button, a)[class*="rounded-full"] {
  letter-spacing: -0.01em;
  transition:
    transform 0.2s var(--ul-ease),
    box-shadow 0.2s ease,
    background-color 0.2s ease;
}

body[data-design-mode="institutional"] :where(button, a)[class*="rounded-full"]:hover {
  transform: translateY(-2px);
}

body[data-design-mode="institutional"] :where(.tab-button, .tab-btn) {
  min-height: 2.75rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: none;
}

body[data-design-mode="institutional"] :where(.tab-button, .tab-btn).active {
  border-color: rgba(255, 255, 255, 0.7);
  box-shadow: 0 10px 28px rgba(1, 23, 19, 0.18);
}

body[data-design-mode="institutional"] table {
  border-collapse: separate;
  border-spacing: 0;
}

body[data-design-mode="institutional"] table thead th:first-child {
  border-top-left-radius: var(--ul-radius-sm);
}

body[data-design-mode="institutional"] table thead th:last-child {
  border-top-right-radius: var(--ul-radius-sm);
}

body[data-design-mode="institutional"] footer {
  color: rgba(255, 255, 255, 0.62) !important;
}

body[data-design-mode="institutional"] footer a {
  text-underline-offset: 0.2em;
}

/* Homepage: bridge between institutional and immersive areas */
body[data-page="home"] {
  background:
    radial-gradient(circle at 78% 18%, rgba(5, 107, 87, 0.38), transparent 31rem),
    radial-gradient(circle at 12% 92%, rgba(94, 207, 177, 0.11), transparent 28rem),
    linear-gradient(145deg, #010907 0%, var(--ul-green-950) 48%, var(--ul-green-900) 100%);
}

body[data-page="home"] .card {
  position: relative;
  overflow: hidden;
  border-color: var(--ul-line-dark);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.035));
  box-shadow: var(--ul-shadow-dark);
}

body[data-page="home"] .card::after {
  content: '';
  position: absolute;
  inset: auto -25% -55% 35%;
  height: 75%;
  border-radius: 50%;
  pointer-events: none;
  background: rgba(5, 107, 87, 0.14);
  filter: blur(28px);
}

body[data-page="home"] .card h3 {
  position: relative;
  z-index: 1;
  color: var(--ul-white) !important;
}

body[data-page="home"] .card p {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.52) !important;
}

body[data-page="home"] a.card:hover {
  border-color: rgba(94, 207, 177, 0.4);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(94, 207, 177, 0.055));
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.44);
}

/* Transparency navigation mirrors the dark cards on the homepage. */
body[data-page="transparency"] > .min-h-screen > .grid a.card {
  border-color: var(--ul-line-dark);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.035));
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
}

body[data-page="transparency"] > .min-h-screen > .grid a.card h3 {
  color: #fff !important;
}

body[data-page="transparency"] > .min-h-screen > .grid a.card i {
  color: var(--ul-mint) !important;
}

body[data-page="transparency"] > .min-h-screen > .grid a.card:hover {
  border-color: rgba(94, 207, 177, 0.38);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(94, 207, 177, 0.055));
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.3);
}

/* Tabs become a consistent dark navigation surface before light content. */
body[data-design-mode="institutional"] :where(.tab-button, .tab-btn):not(.active) {
  background: rgba(255, 255, 255, 0.065) !important;
  color: rgba(255, 255, 255, 0.72) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

body[data-design-mode="institutional"] :where(.tab-button, .tab-btn):not(.active):hover {
  background: rgba(255, 255, 255, 0.11) !important;
  color: #fff !important;
  border-color: rgba(94, 207, 177, 0.28);
}

body[data-design-mode="institutional"] :where(.tab-button, .tab-btn).active {
  background: #fff !important;
  color: var(--ul-green-700) !important;
}

/* Light content surfaces enter from the dark shell without a hard colour cut. */
body[data-design-mode="institutional"] .max-w-6xl > .card,
body[data-design-mode="institutional"] .max-w-5xl > .card,
body[data-design-mode="institutional"] .max-w-4xl .card,
body[data-design-mode="institutional"] .max-w-3xl > .card {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.72) inset,
    0 24px 65px rgba(0, 0, 0, 0.2);
}

/* Immersive mode: shared interaction and accessibility layer */
body[data-design-mode="immersive"] {
  background: var(--ul-green-950);
}

body[data-design-mode="immersive"] :where(a, button) {
  transition-timing-function: var(--ul-ease);
}

body[data-design-mode="immersive"] :where(header, nav)[style*="backdrop-filter"] {
  border-color: var(--ul-line-dark) !important;
}

body[data-design-mode="immersive"] footer {
  border-color: var(--ul-line-dark);
}

/* Museum video is a content page inside the immersive family. */
body[data-page="museum-video"] {
  background:
    radial-gradient(circle at 80% 10%, rgba(5, 107, 87, 0.24), transparent 32rem),
    linear-gradient(145deg, #010907, var(--ul-green-950) 55%, var(--ul-green-900));
}

body[data-page="museum-video"] .card {
  border: 1px solid var(--ul-line-dark);
  background: rgba(255, 255, 255, 0.055);
  color: #fff;
  box-shadow: var(--ul-shadow-dark);
}

body[data-page="museum-video"] .card :where(h2, p) {
  color: inherit !important;
}

body[data-page="museum-video"] .card p {
  color: rgba(255, 255, 255, 0.6) !important;
}

body[data-page="museum-video"] .card video {
  background: #000;
}

@media (max-width: 640px) {
  body[data-design-mode="institutional"] > .min-h-screen {
    padding-inline: 1rem !important;
  }

  body[data-design-mode="institutional"] .card {
    border-radius: var(--ul-radius-md) !important;
  }

  body[data-design-mode="institutional"] .card[class*="p-8"] {
    padding: 1.25rem !important;
  }

  body[data-design-mode="institutional"] > .min-h-screen > h1 {
    font-size: clamp(2.1rem, 11vw, 3.4rem) !important;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  body[data-design-mode="institutional"] {
    background: #fff !important;
  }

  body[data-design-mode="institutional"]::before {
    display: none;
  }
}