/* =========================================================
   Material Design 3 tokens & Custom Design Tokens
   ========================================================= */

:root {
  color-scheme: light dark;

  --md-corner-medium: 16px;
  --md-corner-large: 24px;
  --md-corner-full: 999px;

  --md-space-1: 8px;
  --md-space-2: 16px;
  --md-space-3: 24px;
  --md-space-4: 32px;
  --md-space-5: 40px;
  --md-space-6: 48px;

  /* Light scheme */
  --md-surface: #fdfbff;
  --md-surface-container-lowest: #ffffff;
  --md-surface-container-low: #f3f0f7;
  --md-surface-container: #eee8f4;
  --md-surface-container-high: #e8e2f0;
  --md-surface-container-highest: #e2dcf0;

  --md-on-surface: #1c1b1f;
  --md-on-surface-variant: #46464f;

  --md-outline-variant: #c7c5d0;

  --md-primary: #6750a4;
  --md-on-primary: #ffffff;
  --md-primary-container: #eaddff;
  --md-on-primary-container: #21005d;

  --md-scrim: rgb(0 0 0 / 40%);
  
  /* Custom design tokens */
  --card-shadow:
    0 4px 6px -1px rgb(0 0 0 / 10%),
    0 2px 4px -2px rgb(0 0 0 / 10%);
  --card-shadow-hover:
    0 20px 25px -5px rgb(0 0 0 / 15%),
    0 8px 10px -6px rgb(0 0 0 / 15%);
  --gradient-text: linear-gradient(135deg, #6750a4, #b473f5);
}

@media (prefers-color-scheme: dark) {
  :root {
    --md-surface: #141218;
    --md-surface-container-lowest: #0f0d13;
    --md-surface-container-low: #1d1b20;
    --md-surface-container: #211f26;
    --md-surface-container-high: #2b2930;
    --md-surface-container-highest: #36343b;

    --md-on-surface: #e6e0e9;
    --md-on-surface-variant: #cac4d0;

    --md-outline-variant: #49454f;

    --md-primary: #d0bcff;
    --md-on-primary: #381e72;
    --md-primary-container: #4f378b;
    --md-on-primary-container: #eaddff;

    --md-scrim: rgb(0 0 0 / 60%);
    
    --card-shadow:
      0 4px 12px rgb(0 0 0 / 40%),
      0 0 0 1px rgb(255 255 255 / 5%);
    --card-shadow-hover:
      0 24px 48px -12px rgb(0 0 0 / 60%),
      0 0 0 1px rgb(255 255 255 / 10%);
    --gradient-text: linear-gradient(135deg, #eaddff, #d0bcff);
  }
}

/* =========================================================
   Base & Layout
   ========================================================= */

*,
*::before,
*::after {
  box-sizing: border-box;
  user-select: none;
  -webkit-user-select: none;
}

html {
  scrollbar-gutter: stable;
}

body {
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  background-color: var(--md-surface);
  background-image: 
    radial-gradient(circle at 15% 50%, var(--md-surface-container-low), transparent 50%),
    radial-gradient(circle at 85% 30%, var(--md-surface-container), transparent 50%);
  background-attachment: fixed;
  font-family: "Roboto Mono", monospace;
  color: var(--md-on-surface);
  -webkit-font-smoothing: antialiased;
}

body:has(.card-viewer[open]) {
  overflow: hidden;
}

/* =========================================================
   Header
   ========================================================= */

.site-header {
  text-align: center;
  padding: var(--md-space-6) var(--md-space-3) var(--md-space-2);
}

.site-title {
  font-size: 2.5rem;
  font-weight: 900;
  margin: 0 0 var(--md-space-1);
  letter-spacing: -1px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.site-subtitle {
  margin: 0;
  font-size: 1rem;
  color: var(--md-on-surface-variant);
  font-weight: 500;
}

main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  align-content: start;
  justify-items: center;
  gap: var(--md-space-4);
  max-width: 1240px;
  margin-inline: auto;
  padding: var(--md-space-4) var(--md-space-3) var(--md-space-6);
}

.noscript-msg {
  max-width: 34ch;
  margin: var(--md-space-4) auto;
  padding: var(--md-space-2) var(--md-space-3);
  border-radius: var(--md-corner-medium);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  text-align: center;
}

/* =========================================================
   Card — Premium M3 elevated card
   ========================================================= */

.card {
  position: relative;
  width: min(100%, 340px);
  padding: var(--md-space-2);
  border-radius: var(--md-corner-medium);
  background: linear-gradient(180deg, var(--md-surface-container-low) 0%, var(--md-surface-container) 100%);
  border: 1px solid var(--md-outline-variant);
  box-shadow: var(--card-shadow);

  transform: perspective(1200px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) scale3d(1, 1, 1);
  transform-style: preserve-3d;
  transition:
    box-shadow 400ms cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 100ms ease-out,
    border-color 400ms ease;

  animation: card-enter 600ms cubic-bezier(0.2, 0.8, 0.2, 1) backwards;
  animation-delay: calc(var(--i, 0) * 60ms);
}

.card:hover,
.card:focus-within {
  will-change: transform, box-shadow;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 400ms ease;
  background: radial-gradient(
    600px circle at var(--mx, 50%) var(--my, 50%),
    rgb(255 255 255 / 10%),
    transparent 40%
  );
  pointer-events: none;
  z-index: 1;
}

@media (hover: hover) {
  .card:hover {
    box-shadow: var(--card-shadow-hover);
    border-color: transparent;
    transform: perspective(1200px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) scale3d(1.03, 1.03, 1.03);
    z-index: 10;
  }

  .card:hover::before {
    opacity: 1;
  }
}

@keyframes card-enter {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.card-open {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  z-index: 10;
  border-radius: var(--md-corner-medium);
  -webkit-tap-highlight-color: transparent;
}

.card-open:focus-visible {
  outline: 3px solid var(--md-primary);
  outline-offset: -3px;
}

/* =========================================================
   Media
   ========================================================= */

.card-media {
  position: relative;
  margin: 0 0 var(--md-space-3);
  border-radius: var(--md-corner-medium);
  overflow: hidden;
  background: var(--md-surface-container-lowest);
  z-index: 2;
  box-shadow: inset 0 0 0 1px rgb(0 0 0 / 5%), inset 0 4px 8px rgb(0 0 0 / 5%);
}

@media (prefers-color-scheme: dark) {
  .card-media {
    box-shadow: inset 0 0 0 1px rgb(255 255 255 / 5%), inset 0 4px 8px rgb(0 0 0 / 20%);
  }
}

.card-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  pointer-events: none;
  transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* =========================================================
   Typography
   ========================================================= */

.card-content {
  padding: 0 var(--md-space-1) var(--md-space-1);
  text-align: start;
  position: relative;
  z-index: 2;
}

.card-title {
  margin: 0 0 var(--md-space-1);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.5px;
  color: var(--md-on-surface);
}

.card-body {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--md-on-surface-variant);
}

/* =========================================================
   Badge & featured card
   ========================================================= */

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  display: block;
  width: max-content;
  padding: 6px 16px;
  border-radius: var(--md-corner-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #fff;
  background: linear-gradient(135deg, #ff6b6b, #f03e3e);
  box-shadow: 0 4px 12px rgba(240, 62, 62, 0.4);
  z-index: 3;
}

.card--featured {
  background: linear-gradient(180deg, var(--md-primary-container) 0%, #d8c4ff 100%);
  border-color: var(--md-primary);
}

@media (prefers-color-scheme: dark) {
  .card--featured {
    background: linear-gradient(180deg, var(--md-primary-container) 0%, #3d286b 100%);
  }
}

.card--featured .card-title {
  color: var(--md-on-primary-container);
}

.card--featured .card-body {
  color: var(--md-on-primary-container);
  opacity: 0.85;
}

.card--featured .card-media {
  background: var(--md-surface-container-lowest);
}

/* =========================================================
   Enlarged card viewer (Glassmorphism Modal) - FIXED
   ========================================================= */

.card-viewer {
  display: flex;
  flex-direction: column;
  width: min(440px, calc(100% - 32px));
  max-width: none;
  max-height: calc(100svh - 32px);
  margin: auto;
  padding: 64px 0 var(--md-space-2);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-corner-large);
  background: var(--md-surface);
  color: var(--md-on-surface);
  overflow: visible;
  box-shadow: 0 24px 64px rgb(0 0 0 / 25%);
}

.card-viewer:not([open]) {
  display: none;
}

.card-viewer::backdrop {
  background: var(--md-scrim);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.card-viewer__stage {
  flex: 1 1 auto;
  min-height: 0;
  padding: 0 24px 16px;
  overflow-y: auto;
  overflow-x: hidden;
}

/* Override the grid card styles for the viewer */
.card-viewer__card {
  width: 100%;
  margin: 0 auto;
  animation: none !important;
  transform: none !important;
}

/* Disable hover 3D tilt in viewer */
.card-viewer__card:hover {
  transform: none !important;
  box-shadow: var(--card-shadow) !important;
  border-color: var(--md-outline-variant) !important;
}

.card-viewer__card .card-media {
  display: grid;
  place-items: center;
  min-height: 200px;
  margin-bottom: var(--md-space-3);
  border-radius: var(--md-corner-medium);
}

/* FIX: Reset aspect-ratio so the viewer image maintains its natural shape */
.card-viewer__card .card-media img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 52svh;
  height: auto;
  aspect-ratio: auto !important; 
  object-fit: contain;
  transform: none !important;
}

.card-viewer__close {
  position: absolute;
  top: var(--md-space-2);
  right: var(--md-space-2);
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 0;
  border-radius: var(--md-corner-full);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  font: inherit;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background 200ms ease;
}

.card-viewer__close:hover {
  background: var(--md-surface-container-highest);
}

.card-viewer__controls {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: var(--md-space-2);
  padding: var(--md-space-2) var(--md-space-3) 0;
  border-top: 1px solid var(--md-outline-variant);
}

.card-viewer__button {
  min-height: 44px;
  padding: 0 var(--md-space-3);
  border: 0;
  border-radius: var(--md-corner-full);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 200ms ease;
}

.card-viewer__button:hover {
  background: var(--md-surface-container-highest);
}

.card-viewer__position {
  font-weight: 700;
  color: var(--md-on-surface-variant);
}

.card-viewer button:focus-visible {
  outline: 3px solid var(--md-primary);
  outline-offset: 4px;
}

/* =========================================================
   Reduced motion
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .card,
  .card:hover,
  .card:focus-within,
  .card-viewer__card,
  .card-viewer__card:hover {
    transform: none !important;
  }
}