@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");

:root {
  --ui-font-sans: "Plus Jakarta Sans";
  --ui-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  --ui-color-text: #eef5f6;
  --ui-color-muted: #95a9ad;
  --ui-color-accent: #dcebea;
  --ui-color-accent-strong: #ffffff;

  --ui-surface: rgba(10, 15, 18, 0.7);
  --ui-surface-strong: rgba(9, 12, 15, 0.94);
  --ui-surface-hover: rgba(15, 22, 26, 0.88);
  --ui-border: rgba(217, 235, 238, 0.12);
  --ui-border-strong: rgba(217, 235, 238, 0.22);

  --ui-shadow-sm: 0 8px 28px rgba(0, 0, 0, 0.18);
  --ui-shadow-md: 0 14px 44px rgba(0, 0, 0, 0.24);
  --ui-shadow-lg: 0 20px 80px rgba(0, 0, 0, 0.42);

  --ui-radius-sm: 14px;
  --ui-radius-md: 18px;
  --ui-radius-lg: 24px;
  --ui-radius-pill: 999px;

  --ui-space-1: 4px;
  --ui-space-2: 8px;
  --ui-space-3: 12px;
  --ui-space-4: 16px;
  --ui-space-5: 20px;
  --ui-space-6: 24px;
  --ui-space-7: 32px;
  --ui-space-8: 40px;

  --ui-speed-fast: 140ms;
  --ui-speed-base: 180ms;
  --ui-speed-slow: 240ms;
  --ui-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  height: 100%;
  color-scheme: dark;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--ui-font-sans);
  color: var(--ui-color-text);
}

body.gallery-page {
  padding: 32px 24px 56px;
  background:
    radial-gradient(circle at top, rgba(47, 75, 82, 0.22), transparent 32%),
    linear-gradient(180deg, #091215 0%, #071013 100%);
  background-attachment: fixed;
}

body.preview-page {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #050607;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 2px solid rgba(220, 235, 234, 0.86);
  outline-offset: 3px;
}

.shell,
.page-shell {
  width: 100%;
  margin: 0;
}

.gallery-page .page-shell {
  max-width: none;
}

.page-title,
h1 {
  margin: 0 0 var(--ui-space-3);
  font-family: var(--ui-font-sans);
  font-size: clamp(2.6rem, 4.6vw, 4.6rem);
  line-height: 0.98;
  font-weight: 800;
  letter-spacing: -0.045em;
}

.page-intro,
.intro {
  max-width: 760px;
  margin: 0 0 var(--ui-space-7);
  color: var(--ui-color-muted);
  font-family: var(--ui-font-sans);
  font-size: 1rem;
  line-height: 1.7;
}

.section-label,
.eyebrow,
.meta-badge,
.meta {
  display: inline-flex;
  align-items: center;
  gap: var(--ui-space-2);
  width: fit-content;
  border-radius: var(--ui-radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ui-color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.meta,
.meta-badge {
  margin-top: auto;
  padding: 8px 12px;
}

.grid,
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--ui-space-5);
  align-items: stretch;
}

.card,
.shader-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(13, 18, 21, 0.8), rgba(8, 12, 15, 0.92));
  box-shadow: var(--ui-shadow-md);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: transform var(--ui-speed-base) var(--ui-ease-out), border-color var(--ui-speed-base) var(--ui-ease-out), background var(--ui-speed-base) var(--ui-ease-out);
}

.card:hover,
.shader-card:hover {
  transform: translateY(-4px);
  border-color: rgba(220, 235, 238, 0.24);
  background: var(--ui-surface-hover);
}

.card iframe,
.shader-card__preview {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 0;
  background: #050607;
  object-fit: cover;
  pointer-events: none;
}

.content,
.shader-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--ui-space-2);
  min-height: 188px;
  padding: var(--ui-space-5);
}

.shader-card__title,
h2 {
  margin: 0;
  font-family: var(--ui-font-sans);
  font-size: 1.1rem;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.shader-card__description,
p {
  margin: 0;
  font-family: var(--ui-font-sans);
  color: var(--ui-color-muted);
  line-height: 1.6;
}

.back-link,
.view-code-link,
.toolbar-button {
  position: fixed !important;
  top: var(--ui-space-5) !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: auto;
  height: 46px !important;
  box-sizing: border-box;
  padding: 0 20px !important;
  border-radius: var(--ui-radius-pill) !important;
  border: 1px solid var(--ui-border-strong) !important;
  background: linear-gradient(180deg, rgba(13, 18, 22, 0.62), rgba(8, 12, 15, 0.52)) !important;
  color: var(--ui-color-text) !important;
  box-shadow: var(--ui-shadow-sm) !important;
  backdrop-filter: blur(14px) !important;
  -webkit-backdrop-filter: blur(14px) !important;
  cursor: pointer;
  font: 600 0.88rem/1 var(--ui-font-sans) !important;
  letter-spacing: -0.02em;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  will-change: opacity, transform;
  transition:
    opacity 120ms ease,
    transform var(--ui-speed-base) var(--ui-ease-out),
    border-color var(--ui-speed-base) var(--ui-ease-out),
    background var(--ui-speed-base) var(--ui-ease-out);
}

.ui-toolbar-ready .back-link,
.ui-toolbar-ready .view-code-link,
.ui-toolbar-ready .toolbar-button {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 35ms, 35ms, 0ms, 0ms;
}

.back-link {
  left: var(--ui-space-5) !important;
  z-index: 25;
  white-space: nowrap;
}

.view-code-link {
  z-index: 25;
  white-space: nowrap;
}

.code-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 38px !important;
  padding: 0 14px !important;
  border-radius: var(--ui-radius-pill) !important;
  border: 1px solid rgba(255, 255, 255, 0.14) !important;
  background: rgba(255, 255, 255, 0.05) !important;
  color: var(--ui-color-text) !important;
  box-shadow: none !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  cursor: pointer;
  font: 600 0.82rem/1 var(--ui-font-sans) !important;
  letter-spacing: -0.02em;
  transition: transform var(--ui-speed-base) var(--ui-ease-out), border-color var(--ui-speed-base) var(--ui-ease-out), background var(--ui-speed-base) var(--ui-ease-out);
}

.back-link:hover,
.view-code-link:hover,
.code-button:hover,
.toolbar-button:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(15, 22, 27, 0.64);
}

.ui-icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.back-link span,
.view-code-link span,
.code-button span,
.toolbar-button span {
  display: inline-flex;
  align-items: center;
}

.code-modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--ui-space-6);
  background: rgba(3, 5, 7, 0.76);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.code-modal.is-open {
  display: flex;
}

.code-panel {
  width: min(1100px, 100%);
  max-height: min(82vh, 900px);
  border-radius: var(--ui-radius-lg);
  border: 1px solid var(--ui-border-strong);
  background: var(--ui-surface-strong);
  box-shadow: var(--ui-shadow-lg);
  overflow: hidden;
}

.code-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ui-space-3);
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--ui-color-text);
  font: 600 0.9rem/1.2 var(--ui-font-sans) !important;
}

.code-panel-actions {
  display: flex;
  gap: var(--ui-space-2);
  flex-wrap: wrap;
}

.code-scroll {
  overflow: auto;
  max-height: calc(min(82vh, 900px) - 66px);
}

.code-block {
  margin: 0;
  padding: var(--ui-space-5);
  color: #eef3f4;
  font: 500 13px/1.6 var(--ui-font-mono);
  white-space: pre;
  user-select: text;
}

.code-block code {
  display: block;
}

.preview-page .error {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  color: rgba(255, 255, 255, 0.86);
  font: 500 13px/1.5 var(--ui-font-sans);
  text-align: center;
  background: #050607;
}

@media (max-width: 720px) {
  body {
    padding: 18px 16px 32px;
  }

  .grid,
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }

  .content,
  .shader-card__body {
    min-height: 0;
  }

  .back-link,
  .view-code-link {
    min-height: 40px !important;
    padding: 0 14px !important;
  }
}