/* =========================================================
   Panda Bump — main.css
   Static site styles, mobile-first.
   No external dependencies. No JS-required for layout.
   ========================================================= */

/* ---------- 1. Design tokens ---------- */
:root {
  --sky:        #04bcfd;
  --sky-soft:   #48cffe;
  --sky-ink:    #112035;
  --grass:      #8fc038;
  --bamboo:     #9cc936;
  --leaf-dark:  #38701a;
  --paper:      #fffdf4;
  --bug-red:    #d9413c;
  --warn:       #f19a1a;
  --ink:        #1f1f1f;
  --ink-mute:   #4a5a6a;

  --radius-s: 12px;
  --radius:   18px;
  --radius-l: 28px;

  --shadow-stamp: 0 6px 0 var(--leaf-dark);
  --border-thick: 4px solid var(--sky-ink);
  --border-thin:  2px solid var(--sky-ink);

  --container: 1100px;
  --gap: 1.25rem;

  --t-fast: 160ms;
  --t-med: 280ms;
}

/* ---------- 2. Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Lilita One", system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background:
    linear-gradient(180deg, var(--sky) 0%, var(--sky-soft) 40%, #c5ecff 100%) no-repeat;
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button { font: inherit; cursor: pointer; }

/* ---------- 3. Custom font ---------- */
@font-face {
  font-family: "Lilita One";
  src: url("/assets/fonts/LilitaOne-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ---------- 4. Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
.section { padding-block: 4.5rem; }
.section-title {
  font-size: clamp(28px, 6vw, 48px);
  line-height: 1.05;
  margin: 0 0 .5rem;
  color: var(--sky-ink);
  text-shadow:
    3px 3px 0 var(--paper),
    -1px -1px 0 var(--paper),
    1px -1px 0 var(--paper),
    -1px 1px 0 var(--paper),
    1px 1px 0 var(--paper);
}
.section-lead {
  font-size: clamp(16px, 2.4vw, 20px);
  color: var(--ink-mute);
  margin: 0 0 2.5rem;
  max-width: 56ch;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--sky-ink);
  color: white;
  padding: .5rem .75rem;
  border-radius: 0 0 var(--radius) var(--radius);
  z-index: 99;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- 5. Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--sky-ink);
  color: var(--paper);
  box-shadow: 0 4px 0 rgba(0,0,0,.18);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .65rem; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  text-decoration: none;
  color: var(--paper);
  font-size: 22px;
  letter-spacing: .5px;
}
.brand img { border-radius: 8px; }
.site-nav { display: flex; gap: 1.1rem; align-items: center; flex-wrap: wrap; }
.site-nav a {
  color: var(--paper);
  text-decoration: none;
  opacity: .85;
  padding: .25rem .35rem;
  border-radius: 8px;
  transition: opacity var(--t-fast), background var(--t-fast);
}
.site-nav a:hover, .site-nav a:focus-visible { opacity: 1; background: rgba(255,255,255,.12); }

.nav-burger {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
}
.nav-burger span { display: block; height: 3px; background: var(--paper); border-radius: 2px; }
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }

@media (max-width: 720px) {
  .nav-burger { display: flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    right: 1rem;
    left: 1rem;
    flex-direction: column;
    align-items: stretch;
    background: var(--sky-ink);
    padding: 1rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-stamp);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-med), transform var(--t-med);
  }
  .site-nav a { padding: .5rem; }
  .nav-toggle:checked ~ .site-nav {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
}

.site-nav-inline { display: flex; gap: 1.1rem; }

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  text-decoration: none;
  padding: 1rem 2.25rem;
  border-radius: var(--radius-l);
  border: var(--border-thick);
  background: var(--grass);
  color: var(--sky-ink);
  font-size: 22px;
  box-shadow: var(--shadow-stamp);
  transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
  line-height: 1.05;
}
.btn:hover, .btn:focus-visible { background: var(--bamboo); transform: translateY(-2px); }
.btn:active { transform: translateY(2px); box-shadow: 0 2px 0 var(--leaf-dark); }
.btn-primary { background: var(--grass); }
.btn-label { font-size: clamp(22px, 4vw, 30px); }
.btn-sub { font-size: 13px; color: var(--sky-ink); opacity: .7; letter-spacing: 1px; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  padding-top: 3.5rem;
  padding-bottom: 0;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-bg .bamboo-pattern {
  position: absolute;
  top: -2rem;
  bottom: 6rem;
  left: 0;
  height: 110%;
  width: 220px;
  background-image: url("/assets/img/ui-elements/bamboo-pattern.png");
  background-repeat: repeat-y;
  background-size: contain;
  opacity: .55;
  mix-blend-mode: multiply;
}
.hero-bg .hud-cloud {
  position: absolute;
  top: 4rem;
  left: 0;
  right: 0;
  width: 100%;
  height: 110px;
  background-image: url("/assets/img/ui-elements/hud-cloud.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  opacity: .9;
}
.hero-bg .bamboo-panda {
  position: absolute;
  right: -1rem;
  top: 3rem;
  width: 180px;
  opacity: .85;
}
.hero-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  padding-bottom: 4rem;
}
.hero-logo { width: clamp(220px, 38vw, 380px); height: auto; }
.hero-title {
  font-size: clamp(28px, 5.5vw, 52px);
  line-height: 1.05;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.hero-title .stripe { display: inline-block; }
.stripe {
  display: inline-block;
  background: var(--paper);
  padding: .15em .6em .25em;
  border-radius: var(--radius);
  border: 3px solid var(--sky-ink);
  box-shadow: 4px 4px 0 var(--leaf-dark);
  transform: rotate(-1deg);
}
.stripe:nth-child(2) { transform: rotate(1deg); }
.stripe:nth-child(3) { transform: rotate(-.5deg); }
.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  margin: 0;
  color: var(--ink-mute);
  max-width: 56ch;
}
.hero-note {
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--ink-mute);
  margin: .25rem 0 0;
}
.hero-grass {
  position: relative;
  margin-top: -2rem;
  line-height: 0;
}
.hero-grass img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  object-position: top;
  display: block;
}

/* ---------- 8. Screenshots ---------- */
.shot-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}
.shot {
  margin: 0;
  background: var(--paper);
  border: var(--border-thin);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 0 rgba(17, 32, 53, .15);
  transition: transform var(--t-med), box-shadow var(--t-med);
}
.shot:hover { transform: translateY(-3px); box-shadow: 0 8px 0 rgba(17, 32, 53, .15); }
.shot-link { display: block; padding: 0; }
.shot-link img { width: 100%; height: auto; aspect-ratio: 750 / 1624; object-fit: cover; }
.shot figcaption {
  font-size: 14px;
  padding: .5rem .75rem;
  text-align: center;
  color: var(--ink-mute);
  border-top: 1px dashed rgba(17,32,53,.15);
}

/* ---------- 9. How to play ---------- */
.how { background: var(--paper); border-block: var(--border-thick); }
.how .section-title { text-shadow: 3px 3px 0 var(--sky-soft); }
.how-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.how-card {
  background: var(--paper);
  border: var(--border-thin);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  box-shadow: 0 4px 0 rgba(17, 32, 53, .12);
}
.how-card img { margin: 0 auto .75rem; }
.how-card h3 { margin: 0 0 .35rem; font-size: 22px; color: var(--sky-ink); }
.how-card p { margin: 0; color: var(--ink-mute); font-size: 15px; }
.how-tip {
  margin-top: 2rem;
  text-align: center;
  font-size: 16px;
  color: var(--ink-mute);
}
kbd {
  display: inline-block;
  padding: 0 .4em;
  border-radius: 4px;
  border: 1px solid var(--sky-ink);
  background: var(--paper);
  font-family: inherit;
  font-size: .85em;
  color: var(--sky-ink);
}

/* ---------- 10. Features ---------- */
.features-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.feature {
  background: var(--paper);
  border: var(--border-thin);
  border-radius: var(--radius);
  padding: 1.25rem;
  position: relative;
}
.feature h3 { margin: .25rem 0 .25rem; font-size: 20px; color: var(--sky-ink); }
.feature p { margin: 0; color: var(--ink-mute); font-size: 15px; line-height: 1.45; }
.badge {
  display: inline-block;
  background: var(--warn);
  color: var(--paper);
  border-radius: 999px;
  padding: 2px 12px;
  font-size: 14px;
  border: 2px solid var(--sky-ink);
}

/* ---------- 11. Character ---------- */
.char-inner {
  display: grid;
  gap: 2rem;
  align-items: center;
  grid-template-columns: 1fr;
}
.char-art {
  width: 100%;
  border-radius: var(--radius-l);
  border: var(--border-thin);
  box-shadow: var(--shadow-stamp);
  background: var(--paper);
}
.char-copy .bullets {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}
.char-copy .bullets li {
  padding-left: 1.4rem;
  position: relative;
  margin-bottom: .35rem;
  color: var(--ink-mute);
}
.char-copy .bullets li::before {
  content: "🐼";
  position: absolute;
  left: 0;
  top: 0;
  font-size: 14px;
}

@media (min-width: 720px) {
  .char-inner { grid-template-columns: 1.1fr 1fr; }
}

/* ---------- 12. FAQ ---------- */
.faq { background: var(--paper); border-block: var(--border-thick); }
.faq-list {
  display: grid;
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto;
}
details {
  background: var(--paper);
  border: var(--border-thin);
  border-radius: var(--radius);
  padding: .9rem 1.1rem;
  box-shadow: 0 4px 0 rgba(17, 32, 53, .12);
}
details summary {
  font-size: 17px;
  cursor: pointer;
  color: var(--sky-ink);
  list-style: none;
  padding-right: 2rem;
  position: relative;
}
details summary::-webkit-details-marker { display: none; }
details summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: var(--sky-ink);
  background: var(--sky-soft);
  width: 28px; height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 2px solid var(--sky-ink);
}
details[open] summary::after { content: "−"; background: var(--grass); }
details[open] summary { margin-bottom: .35rem; }
details p { margin: .5rem 0 0; color: var(--ink-mute); font-size: 15px; line-height: 1.55; }
details a { color: var(--sky-ink); text-decoration: underline; }

/* ---------- 13. Docs (privacy / support) ---------- */
.doc { padding-block: 2.5rem 5rem; }
.doc h1 {
  font-size: clamp(36px, 6vw, 56px);
  margin: .5rem 0 .75rem;
  color: var(--sky-ink);
  text-shadow: 3px 3px 0 var(--paper);
}
.doc h2 { font-size: 22px; margin-top: 2rem; color: var(--sky-ink); }
.doc p, .doc ul { color: var(--ink); }
.doc ul { padding-left: 1.2rem; }
.doc a { color: var(--sky-ink); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; }
.doc code {
  background: var(--paper);
  padding: 1px 6px;
  border-radius: 6px;
  border: 1px solid rgba(17,32,53,.15);
  font-size: .92em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.doc .crumbs {
  font-size: 14px;
  color: var(--ink-mute);
  margin: 0 0 1rem;
}
.doc .crumbs a { color: var(--sky-ink); }
.doc .meta { font-size: 13px; color: var(--ink-mute); }
.doc .lead { font-size: 18px; color: var(--ink-mute); }
.doc hr { border: 0; border-top: 1px dashed rgba(17,32,53,.2); margin: 2rem 0; }
.doc .facts { list-style: none; padding: 0; margin: 0; display: grid; gap: .25rem; }
.doc .facts li { padding: .25rem 0; border-bottom: 1px dashed rgba(17,32,53,.15); }
.contact-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 1rem 0 2rem;
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  padding: 1rem 1.1rem;
  border: var(--border-thin);
  border-radius: var(--radius);
  background: var(--paper);
  text-decoration: none;
  color: var(--sky-ink);
  box-shadow: 0 4px 0 rgba(17,32,53,.12);
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.contact-card:hover, .contact-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 rgba(17,32,53,.12);
}
.contact-label { font-size: 13px; color: var(--ink-mute); letter-spacing: 1px; }
.contact-value { font-size: 22px; }
.contact-sub { font-size: 13px; color: var(--ink-mute); }

/* ---------- 14. Footer ---------- */
.site-footer {
  background: var(--sky-ink);
  color: var(--paper);
  padding-block: 2rem;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}
.footer-nav { display: flex; gap: 1.2rem; flex-wrap: wrap; justify-content: center; }
.footer-nav a { color: var(--paper); text-decoration: none; opacity: .85; }
.footer-nav a:hover, .footer-nav a:focus-visible { opacity: 1; text-decoration: underline; }
.copyright { font-size: 13px; opacity: .75; margin: 0; }

/* ---------- 15. Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(17, 32, 53, .92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  gap: .75rem;
}
.lightbox[hidden] { display: none; }
.lightbox-img { max-width: 92vw; max-height: 78vh; border-radius: var(--radius); border: var(--border-thin); background: var(--paper); }
.lightbox-cap { color: var(--paper); margin: 0; font-size: 14px; opacity: .85; max-width: 80ch; text-align: center; }
.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  background: var(--bug-red);
  color: var(--paper);
  border: 3px solid var(--paper);
  border-radius: 50%;
  width: 44px; height: 44px;
  font-size: 22px;
  display: grid;
  place-items: center;
}

/* ---------- 16. Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--t-med) ease, transform var(--t-med) ease;
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 17. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 18. Responsive tweaks ---------- */
@media (min-width: 640px) {
  .container { padding-inline: 1.5rem; }
  .section { padding-block: 5.5rem; }
}
@media (min-width: 960px) {
  body { font-size: 17px; }
  .footer-inner { flex-direction: row; justify-content: space-between; text-align: left; }
  .hero-bg .bamboo-panda { width: 240px; right: 2rem; }
}
@media (min-width: 1280px) {
  .section { padding-block: 6.5rem; }
}