/* === ContrastGIF Styles === */

@font-face {
  font-family: 'Geist Mono';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/static/fonts/geist-mono.woff2') format('woff2');
}

:root {
  --bg:         #09090b;
  --bg-card:    rgba(24,24,27,0.5);
  --bg-hover:   rgba(39,39,42,0.4);
  --border:     #27272a;
  --border-dim: #1c1c1f;
  --text:       #fafafa;
  --text-muted: #a1a1aa;
  --text-dim:   #71717a;
  --primary:    #0ea5e9;
  --primary-hover: #0284c7;
  --focus:      #60a5fa;
  --green:      #22c55e;
  --red:        #ef4444;
  --font-mono:  'Geist Mono', 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  --ease:       cubic-bezier(.2,.7,.3,1);
  --speed:      0.24s;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  font-size: 0.875rem;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

main { flex: 1; }

body::before {
  content: '';
  position: fixed;
  inset: 0;
  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: 3rem 3rem;
  pointer-events: none;
  z-index: 0;
}

/* Nav */
nav {
  position: relative;
  z-index: 50;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-inline-size: 68.75rem;
  margin-inline: auto;
  padding-block: 1rem;
  padding-inline: 2rem;
  background-color: var(--bg);
}

.logo {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
  display: inline;
}

.logo span { color: var(--primary); }

.nav-links {
  display: none;
  flex-basis: 100%;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding-block-start: 1.5rem;
  padding-block-end: 0.5rem;
  border-block-start: 1px solid var(--border);
  margin-block-start: 1rem;
}

.nav-links.open { display: flex; }

.nav-links a {
  display: inline;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.6rem 1.5rem;
  border-radius: 0.5rem;
  transition: color 0.2s, background-color 0.2s;
}

.nav-links a:visited { color: var(--text-muted); text-decoration: none; }
.nav-links a:hover {
  color: var(--text);
  background-color: var(--bg-hover);
}

.nav-links a:focus-visible {
  color: var(--text);
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

/* Hamburger */
.hamburger {
  display: inline-grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 0;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  z-index: 20;
  transition: background-color 0.24s;
}

.hamburger:hover { background-color: var(--bg-hover); }

.hamburger__lines {
  position: relative;
  width: 1.25rem;
  height: 0.125rem;
  background-color: var(--text-muted);
  border-radius: 0.125rem;
  transition: background-color 0.24s;
}

.hamburger__lines::before,
.hamburger__lines::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--text-muted);
  border-radius: 0.125rem;
  transition: transform 0.24s;
  transform-origin: 50% 50%;
}

.hamburger__lines::before { transform: translateY(-0.375rem); }
.hamburger__lines::after  { transform: translateY(0.375rem); }

.hamburger[aria-expanded="true"] .hamburger__lines {
  background-color: transparent;
}

.hamburger[aria-expanded="true"] .hamburger__lines::before {
  transform: translateY(0) rotate(45deg);
}

.hamburger[aria-expanded="true"] .hamburger__lines::after {
  transform: translateY(0) rotate(-45deg);
}

/* Glow */
.glow {
  position: fixed;
  top: -12.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 43.75rem;
  height: 31.25rem;
  background: radial-gradient(ellipse, rgba(14,165,233,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Hero */
.hero {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 42rem;
  margin: 0 auto;
  padding: 4rem 2rem 2rem;
}

h1 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-block-end: 1.25rem;
}

h1 .gradient {
  background: linear-gradient(135deg, #0ea5e9, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-block-end: 2.5rem;
}

/* Style selector */
.style-selector {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  justify-content: center;
}

.style-btn {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.style-btn.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(14,165,233,0.1);
}

.style-btn:hover {
  border-color: var(--text-muted);
}

/* Generator */
.generator {
  max-width: 32rem;
  margin: 0 auto;
}

.input-row {
  display: flex;
  gap: 0.5rem;
}

.input-row input {
  flex: 1;
  min-height: 44px;
  padding: 0.6rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--speed) var(--ease);
}

.input-row input:focus {
  border-color: var(--primary);
}

.input-row input::placeholder {
  color: var(--text-dim);
}

.char-counter {
  text-align: right;
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* Buttons */
.btn-primary {
  min-height: 44px;
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: 0.5rem;
  background: var(--primary);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  white-space: nowrap;
}

.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  min-height: 44px;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.btn-secondary:hover {
  border-color: var(--text-dim);
  color: var(--text);
}

/* Result area */
.result {
  margin-top: 1.5rem;
}

.hidden { display: none !important; }

/* Loading */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem 0;
}

.spinner {
  width: 3rem;
  height: 3rem;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.elapsed {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Preview */
.preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 0;
}

.preview img {
  max-width: 100%;
  border-radius: 0.75rem;
  border: 1px solid var(--border-dim);
}

.gif-prompt {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  text-align: center;
  word-break: break-word;
}

/* Actions */
.actions {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* Error */
.error {
  text-align: center;
  padding: 1rem;
  color: var(--red);
  font-size: 0.85rem;
}

/* Gallery */
.gallery-section {
  position: relative;
  z-index: 10;
  max-width: 52rem;
  margin: 2rem auto 0;
  padding: 0 2rem;
}

.section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-block-end: 1rem;
  text-align: center;
}

.search-bar { margin: 0 0 1rem; padding: 0; }
.search-row { position: relative; }
.search-row input { width: 100%; padding: 0.6rem 2.5rem 0.6rem 1rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: 0.5rem; color: var(--text); font-family: var(--font-mono); font-size: 0.85rem; outline: none; transition: border-color var(--speed) var(--ease); }
.search-row input:focus { border-color: var(--primary); }
.search-row input::placeholder { color: var(--text-dim); }
.search-row .search-icon { position: absolute; right: 0.75rem; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; color: var(--text-dim); font-size: 1rem; padding: 0.25rem; transition: color 0.2s, transform 0.15s; }
.search-row .search-icon:hover { color: var(--primary); transform: translateY(-50%) scale(1.2); }
.search-row .search-icon:active { transform: translateY(-50%) scale(0.9); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
}

.gallery-item {
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid var(--border-dim);
  background: var(--bg-card);
  transition: border-color 0.2s;
}

.gallery-item:hover {
  border-color: var(--border);
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}

/* Footer */
footer {
  position: relative;
  z-index: 10;
  text-align: center;
  padding-block: 2rem;
  padding-inline: 1.25rem;
  color: var(--text-dim);
  font-size: 0.75rem;
  border-block-start: 1px solid var(--border-dim);
  max-inline-size: 68.75rem;
  margin-inline: auto;
  margin-block-start: 2rem;
}

footer a {
  display: inline;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover { color: var(--text-muted); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 0.75rem;
  margin-block-end: 1rem;
}

.footer-links a {
  padding-block: 0.5rem;
  padding-inline: 0.25rem;
}

footer p { color: var(--text-dim); }

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.6rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  font-size: 0.8rem;
  z-index: 100;
  animation: fadeInUp 0.3s var(--ease);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateX(-50%) translateY(1rem); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Desktop (640px+) */
@media screen and (min-width: 640px) {
  nav {
    flex-wrap: nowrap;
    padding: 1.25rem 2rem;
  }

  .hamburger { display: none; }

  .nav-links {
    display: flex;
    flex-basis: auto;
    flex-direction: row;
    gap: 1.75rem;
    padding: 0;
    border: none;
    margin: 0;
  }

  .nav-links a {
    font-size: 0.8rem;
    padding: 0;
    border-radius: 0;
  }

  .nav-links a:hover {
    background-color: transparent;
  }

  footer { padding-inline: 2rem; }

  .footer-links {
    gap: 0.5rem 1.5rem;
  }
}

/* Mobile */
@media (max-width: 639px) {
  h1 { font-size: 1.75rem; }
  .subtitle { font-size: 0.85rem; }
  .hero { padding: 3rem 1.25rem 1.5rem; }
  .gallery-section { padding: 0 1.25rem; }
  footer { padding: 1.5rem 1.25rem; }
  .footer-links { gap: 0.25rem 0.5rem; }

  .style-selector { flex-wrap: wrap; }
  .style-btn { flex: 1; min-width: 0; font-size: 0.75rem; padding: 0.5rem 0.75rem; }

  .input-row {
    flex-direction: column;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }


  .btn-primary, .btn-secondary {
    min-height: 44px;
  }
}