/* ════════════════════ DESIGN TOKENS ════════════════════ */
:root {
  --bg:           #FFFAF0;
  --bg-alt:       #FFF1DA;
  --bg-soft:      #FFF6E5;
  --bg-card:      #FFFFFF;
  --primary:      #FFD93D;
  --primary-dark: #E8A300;
  --accent:       #FF8C00;
  --leaf:         #6FA85B;
  --berry:        #E45D7A;
  --text:         #2C2826;
  --text-soft:    #6E6056;
  --text-faint:   #A89B90;
  --border:       rgba(120, 90, 40, 0.10);
  --border-strong:rgba(120, 90, 40, 0.18);
  --shadow-sm:    0 2px 8px rgba(180, 130, 50, 0.08);
  --shadow-md:    0 8px 24px rgba(180, 130, 50, 0.12);
  --shadow-lg:    0 20px 48px rgba(180, 130, 50, 0.18);
  --radius:       14px;
  --radius-lg:    24px;
  --max-w:        1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
               system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

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

kbd {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.82em;
  padding: 0.12em 0.5em;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  color: var(--text);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04);
}

/* ════════════════════ HERO ════════════════════ */

.hero {
  position: relative;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%, var(--bg-alt) 0%, transparent 70%),
    var(--bg);
  padding: 5rem 1.5rem 9rem;
  text-align: center;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin: 0 auto;
}

.app-icon {
  width: 132px;
  height: 132px;
  border-radius: 28px;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
  background: white;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
  line-height: 1;
}

.hero .tagline {
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  color: var(--text-soft);
  margin-bottom: 0.4rem;
}

.hero .sub-tagline {
  color: var(--text-faint);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 0.8rem;
}

.cta-note {
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ════════════════════ BUTTONS ════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.18s ease-out, box-shadow 0.18s ease-out, background 0.18s;
  border: 1.5px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--bg);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover {
  background: var(--bg-card);
  border-color: var(--text-soft);
}

.btn-large { padding: 1rem 1.8rem; font-size: 1.05rem; }

.apple-logo {
  font-family: -apple-system, "Apple Color Emoji";
  font-size: 1.1em;
}

.zip-label { font-size: 0.8em; opacity: 0.7; font-weight: 500; }

/* ════════════════════ HERO GROUND STRIP ════════════════════
   A mixed parade of chicks and bunnies trails along the bottom of the hero.
   Each critter is positioned absolutely and slid horizontally with `stroll`,
   while its sprite frames cycle independently (chicks: continuous walk;
   bunnies: hop-cycle with vertical arc).                                  */

.ground-strip {
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  height: 90px;
  pointer-events: none;
  z-index: 1;
}

.ground-strip::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%,
    rgba(120, 80, 30, 0.15) 30%, rgba(120, 80, 30, 0.15) 70%, transparent 100%);
}

.critter.walking,
.critter.hopping {
  position: absolute;
  bottom: 4px;
  left: var(--start);
  animation:
    sprite-walk 0.7s steps(4) infinite,
    stroll var(--duration) ease-in-out var(--delay) infinite alternate;
}

.critter.hopping {
  animation:
    sprite-walk 1.1s steps(4) infinite,
    hop-arc 1.1s ease-in-out infinite,
    stroll var(--duration) ease-in-out var(--delay) infinite alternate;
}

@keyframes stroll {
  from { transform: translateX(-30vw); }
  to   { transform: translateX( 30vw); }
}

/* ════════════════════ CRITTER SPRITES (chick + bunny share layout) ════════════════════ */

.critter {
  display: inline-block;
  width: 64px;
  height: 64px;
  background-size: 256px 64px;
  background-repeat: no-repeat;
  image-rendering: auto;
}
.critter.pixelated { image-rendering: pixelated; image-rendering: crisp-edges; }

.critter.chick.anime       { background-image: url("sprites/chicken_anime.png"); }
.critter.chick.realistic   { background-image: url("sprites/chicken_realistic.png"); }
.critter.chick.memoji      { background-image: url("sprites/chicken_memoji.png"); }
.critter.chick.lego        { background-image: url("sprites/chicken_lego.png"); }
.critter.chick.embroidered { background-image: url("sprites/chicken_embroidered.png"); }
.critter.chick.oil         { background-image: url("sprites/chicken_oil.png"); }
.critter.chick.psx         { background-image: url("sprites/chicken_psx.png"); image-rendering: pixelated; }

.critter.bunny.anime       { background-image: url("sprites/bunny_anime.png"); }
.critter.bunny.realistic   { background-image: url("sprites/bunny_realistic.png"); }
.critter.bunny.memoji      { background-image: url("sprites/bunny_memoji.png"); }
.critter.bunny.lego        { background-image: url("sprites/bunny_lego.png"); }
.critter.bunny.embroidered { background-image: url("sprites/bunny_embroidered.png"); }
.critter.bunny.oil         { background-image: url("sprites/bunny_oil.png"); }
.critter.bunny.psx         { background-image: url("sprites/bunny_psx.png"); image-rendering: pixelated; }

/* In-card "walk in place" loop for chicks, "hop in place" loop for bunnies. */
.critter.chick.walk-loop { animation: sprite-walk 0.7s steps(4) infinite; }
.critter.bunny.hop-loop {
  animation:
    sprite-walk 1.05s steps(4) infinite,
    hop-arc 1.05s ease-in-out infinite;
}

@keyframes sprite-walk {
  from { background-position: 0 0; }
  to   { background-position: -256px 0; }
}

/* Parabolic vertical arc — peaks mid-cycle so it lines up with the airborne
   frame index. Slight crouch (positive y) right before takeoff sells the
   loaded-spring posture. */
@keyframes hop-arc {
  0%   { transform: translateY(0); }
  18%  { transform: translateY(2px); }
  50%  { transform: translateY(-12px); }
  82%  { transform: translateY(0); }
  100% { transform: translateY(0); }
}

/* ════════════════════ SECTIONS ════════════════════ */

.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.section-eyebrow {
  display: inline-block;
  padding: 0.32rem 0.85rem;
  background: var(--bg-alt);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-soft);
  margin-bottom: 1rem;
}

.section h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
  text-align: center;
}

.section-sub {
  color: var(--text-soft);
  font-size: 0.98rem;
}

/* ════════════════════ CHICK + BUNNY GRID ════════════════════ */

.styles-section,
.bunnies-section { max-width: 1280px; }

.styles-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.85rem;
}

.style-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 0.65rem 0.9rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.style-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.critter-stage {
  height: 80px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  margin-bottom: 0.6rem;
}

.style-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  letter-spacing: -0.01em;
}

.style-card p {
  font-size: 0.78rem;
  color: var(--text-soft);
  line-height: 1.35;
}

/* The bunnies-section sits on a soft tinted strip so the two species feel
   like separate chapters even as they share the same card layout.        */
.bunnies-section {
  background: var(--bg-soft);
  max-width: none;
}
.bunnies-section .section-header,
.bunnies-section .styles-grid {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 1024px) { .styles-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 720px)  { .styles-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px)  { .styles-grid { grid-template-columns: repeat(2, 1fr); } }

/* ════════════════════ SNAKES GRID ════════════════════ */

.snakes-section {
  background:
    radial-gradient(ellipse 60% 80% at 80% 0%, rgba(180, 230, 200, 0.30) 0%, transparent 60%),
    radial-gradient(ellipse 55% 60% at 20% 100%, rgba(255, 225, 200, 0.30) 0%, transparent 65%),
    var(--bg);
  max-width: none;
}
.snakes-section .section-header,
.snakes-section .snakes-grid,
.snakes-section .snakes-note {
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
}

.snakes-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.snake-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.9rem 1rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.snake-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.snake-svg {
  width: 100%;
  height: 80px;
  display: block;
  margin-bottom: 0.4rem;
  overflow: visible;
}

/* Default snake silhouette — uniform stroke with rounded caps. Per-style
   blocks below override --base / --secondary and the overlay nodes' visibility
   to express the pattern (dorsal stripe, bands, blotches, checker). The base
   path is always visible; specific overlay nodes appear only when the parent
   card opts in via class. */
.snake-svg .snake-body {
  fill: none;
  stroke-width: 16;
  stroke-linecap: round;
  stroke: var(--snake-base, #555);
}

.snake-svg .snake-stripe {
  fill: none;
  stroke-width: 5;
  stroke-linecap: round;
  stroke: var(--snake-secondary, #fff);
  display: none;
}

.snake-svg .snake-bands {
  fill: none;
  stroke-width: 16;
  stroke-linecap: butt;
  stroke: var(--snake-secondary, #fff);
  stroke-dasharray: 14 14;
  display: none;
}

.snake-svg .snake-blotches ellipse,
.snake-svg .snake-checkers rect {
  fill: var(--snake-secondary, #444);
  display: none;
}

.snake-svg .snake-head {
  fill: var(--snake-base, #555);
  stroke: rgba(0, 0, 0, 0.20);
  stroke-width: 0.8;
}

.snake-svg .snake-eye { fill: #1A1714; }

/* Pattern toggles — show the right overlay for each species. */
.snake-card.emerald .snake-stripe,
.snake-card.garter  .snake-stripe { display: block; }

.snake-card.coral .snake-bands,
.snake-card.milk  .snake-bands { display: block; }

.snake-card.albino     .snake-blotches ellipse,
.snake-card.ball       .snake-blotches ellipse,
.snake-card.diamondback .snake-checkers rect { display: block; }

/* Per-species colour vars. */
.snake-card.emerald     { --snake-base: #2E8C4D; --snake-secondary: #ECF1C7; }
.snake-card.coral       { --snake-base: #DA3330; --snake-secondary: #FBD84C; }
.snake-card.diamondback { --snake-base: #A88E66; --snake-secondary: #4D3823; }
.snake-card.albino      { --snake-base: #F8F0D5; --snake-secondary: #F7A674; }
.snake-card.garter      { --snake-base: #2E4D33; --snake-secondary: #F0DC4C; }
.snake-card.milk        { --snake-base: #DA3330; --snake-secondary: #1A1714; }
.snake-card.ball        { --snake-base: #C7A05B; --snake-secondary: #33241A; }
.snake-card.racer       { --snake-base: #1B1B1F; --snake-secondary: #8C8C90; }

/* Light "shine" along the dorsal axis on every card. */
.snake-card .snake-svg::after {
  content: "";
}

.snake-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  letter-spacing: -0.01em;
}

.snake-card p {
  font-size: 0.78rem;
  color: var(--text-soft);
  line-height: 1.35;
}

.snakes-note {
  text-align: center;
  margin-top: 1.8rem;
  color: var(--text-soft);
  font-size: 0.92rem;
}

/* Wrapping behaviour for narrower screens. */
@media (max-width: 1024px) { .snakes-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px)  { .snakes-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .snakes-grid { grid-template-columns: 1fr; } }

/* ════════════════════ FEATURES GRID ════════════════════ */

.features-section { background: var(--bg-alt); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.feature h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.feature p {
  font-size: 0.92rem;
  color: var(--text-soft);
}

/* ════════════════════ DOWNLOAD CARD ════════════════════ */

.download-section { padding-top: 4rem; }

.download-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: linear-gradient(180deg, var(--bg-card) 0%, #FFF8E8 100%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  flex-wrap: wrap;
  justify-content: center;
  margin: 1.2rem auto 0;
  max-width: 720px;
}

.download-icon {
  width: 80px; height: 80px;
  border-radius: 18px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.download-info { flex: 1; min-width: 180px; }
.download-title { font-weight: 700; font-size: 1.15rem; }
.download-meta { font-size: 0.88rem; color: var(--text-soft); }

.install-instructions {
  margin: 1.2rem auto 0;
  max-width: 720px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}
.install-instructions summary {
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}
.install-instructions ol {
  margin-top: 1rem;
  padding-left: 1.4rem;
}
.install-instructions li { margin-bottom: 0.5rem; color: var(--text-soft); }
.install-instructions code {
  background: var(--bg-alt);
  padding: 0.1em 0.4em;
  border-radius: 5px;
  font-size: 0.92em;
}

.alt-install {
  text-align: center;
  margin: 1.2rem auto 0;
  max-width: 720px;
  font-size: 0.9rem;
  color: var(--text-soft);
}
.alt-install code {
  background: var(--bg-alt);
  padding: 0.25em 0.6em;
  border-radius: 6px;
  font-size: 0.92em;
  display: inline-block;
  margin-left: 0.4rem;
}

/* ════════════════════ FOOTER ════════════════════ */

.site-footer {
  text-align: center;
  padding: 3rem 1.5rem 4rem;
  color: var(--text-faint);
  font-size: 0.86rem;
  line-height: 1.8;
  background: var(--bg-soft);
}
.site-footer a {
  color: var(--text-soft);
  text-decoration: underline;
  text-decoration-color: var(--border);
}
.footer-credits { margin-top: 0.4rem; }

/* ════════════════════ DARK MODE ════════════════════ */

@media (prefers-color-scheme: dark) {
  :root {
    --bg:           #1A1714;
    --bg-alt:       #221E1A;
    --bg-soft:      #1F1B17;
    --bg-card:      #2A2521;
    --text:         #F5EFE8;
    --text-soft:    #B8AFA5;
    --text-faint:   #8A8077;
    --border:       rgba(255, 220, 160, 0.08);
    --border-strong:rgba(255, 220, 160, 0.16);
    --shadow-sm:    0 2px 8px rgba(0, 0, 0, 0.30);
    --shadow-md:    0 8px 24px rgba(0, 0, 0, 0.40);
    --shadow-lg:    0 20px 48px rgba(0, 0, 0, 0.50);
  }
  .btn-primary { background: var(--primary); color: #1A1714; }
  .btn-primary:hover { color: #1A1714; }
  .download-card { background: linear-gradient(180deg, var(--bg-card) 0%, #2F2925 100%); }
  .snake-svg .snake-eye { fill: #FFF6E5; }
}

/* ════════════════════ MOBILE ════════════════════ */

@media (max-width: 640px) {
  .hero { padding: 3rem 1rem 6rem; }
  .ground-strip { height: 76px; }
  .critter.walking, .critter.hopping { transform: scale(0.8); }
  .download-card { text-align: center; }
}