/* ===== Memory Match Game — landing (estilo papel y ceras) ===== */

/* Fuente manuscrita "crayon" (Schoolbell, licencia OFL — ver fonts/) */
@font-face {
  font-family: "Schoolbell";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/schoolbell-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* Paleta "cuaderno de dibujo": papel crema + ceras de colores */
  --paper: #fdf6e8;
  --paper-soft: #fffaf0;
  --card: #ffffff;
  --ink: #2f2a25;
  --ink-soft: #6f6152;
  --muted: #7a6a58;
  --link: #1673b0;
  --accent: #ffd23f;
  --green: #63b95f;
  --blue: #4aa8e0;
  --red: #e2574c;
  --purple: #9b7bd4;
  --orange: #f0932b;

  --text: var(--ink);
  --line: var(--ink);
  --outline: 3px solid var(--ink);
  --radius: 18px;
  --shadow: 5px 6px 0 rgba(47, 42, 37, .14);
  --shadow-lg: 9px 11px 0 rgba(47, 42, 37, .16);
  --font-hand: "Schoolbell", "Comic Sans MS", "Segoe Print", "Chalkboard SE", "Bradley Hand", cursive;
  --font-body: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.6;
  background-color: var(--paper);
  background-image:
    radial-gradient(rgba(47, 42, 37, .07) 1px, transparent 1.2px),
    radial-gradient(circle at 10% 12%, rgba(255, 210, 63, .38), transparent 26%),
    radial-gradient(circle at 90% 6%, rgba(74, 168, 224, .30), transparent 26%),
    radial-gradient(circle at 84% 94%, rgba(99, 185, 95, .28), transparent 28%),
    radial-gradient(circle at 5% 86%, rgba(226, 87, 76, .22), transparent 26%);
  background-size: 18px 18px, auto, auto, auto, auto;
  background-attachment: fixed;
}

h1, h2, h3, .brand, .btn, .main-nav a, .step-num, .hero-note {
  font-family: var(--font-hand);
}

img { max-width: 100%; display: block; }

a { color: var(--link); }

:focus-visible { outline: 3px dashed var(--ink); outline-offset: 3px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .8rem 1.5rem;
  border: 3px solid var(--ink);
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
  cursor: pointer;
}
.btn svg { width: 1.15em; height: 1.15em; fill: currentColor; }

.btn-play {
  background: #171717;
  color: #fff;
  box-shadow: 4px 5px 0 rgba(47, 42, 37, .35);
}
.btn-play:hover { transform: translateY(-3px) rotate(-1deg); filter: brightness(1.15); }

.btn-cta { background: var(--accent); color: var(--ink); box-shadow: 3px 4px 0 rgba(47, 42, 37, .25); }
.btn-cta:hover { transform: translateY(-2px); box-shadow: 5px 6px 0 rgba(47, 42, 37, .3); }

.btn-ghost { background: #fff; color: var(--ink); }
.btn-ghost:hover { background: var(--paper-soft); transform: translateY(-2px); }

.btn-small { padding: .45rem 1rem; font-size: .87rem; }
.btn-lg { font-size: 1.08rem; padding: 1rem 1.9rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .7rem clamp(1rem, 4vw, 2.5rem);
  background: rgba(253, 246, 232, .93);
  backdrop-filter: blur(6px);
  border-bottom: 3px dashed rgba(47, 42, 37, .35);
}
.brand { display: flex; align-items: center; gap: .6rem; color: var(--ink); text-decoration: none; font-weight: 800; }
.brand-icon { width: 40px; height: 40px; border-radius: 10px; border: 2px solid var(--ink); background: #fff; }
.main-nav { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.main-nav a { color: var(--ink-soft); text-decoration: none; font-weight: 700; }
.main-nav a:hover { color: var(--ink); text-decoration: underline wavy var(--accent) 2px; }
.main-nav .btn-cta { color: var(--ink); text-decoration: none; }

/* ---------- Hero ---------- */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 4vw, 2.5rem);
  text-align: center;
}
.hero-content { display: flex; flex-direction: column; align-items: center; }
.hero-title {
  width: min(560px, 92%);
  margin: 0 0 1rem;
  filter: drop-shadow(4px 6px 0 rgba(47, 42, 37, .18));
  transform: rotate(-1deg);
}
.hero-tagline { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--ink-soft); max-width: 40rem; }
.hero-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 1.4rem; justify-content: center; }
.hero-note { color: var(--muted); font-size: .95rem; margin-top: 1rem; }
.hero-art { width: 100%; max-width: 900px; }
.hero-art img {
  width: 100%;
  margin: 0 auto;
  padding: 10px;
  background: #fff;
  border: var(--outline);
  border-radius: 22px 28px 20px 26px;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transform: rotate(.8deg);
}

/* ---------- Secciones ---------- */
.section { max-width: 1200px; margin: 0 auto; padding: clamp(2.5rem, 5vw, 4.5rem) clamp(1rem, 4vw, 2.5rem); }
.section-alt { max-width: none; background: rgba(255, 255, 255, .68); border-top: 3px dashed rgba(47, 42, 37, .3); border-bottom: 3px dashed rgba(47, 42, 37, .3); }
.section-alt > .section-head, .section-alt > ol { max-width: 1000px; margin-left: auto; margin-right: auto; }

.section-head { text-align: center; max-width: 46rem; margin: 0 auto 2.5rem; }
.section-head h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); margin: 0 0 .5rem; }
.section-head p { color: var(--ink-soft); margin: 0; }

/* Subrayado de cera bajo los títulos */
.section-head h2, .download h2, .authors-text h2 {
  display: inline-block;
  padding-bottom: .5rem;
  background: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20120%2010'%20preserveAspectRatio='none'%3E%3Cpath%20d='M2%206q14%20-8%2028%200t28%200t28%200t28%200'%20fill='none'%20stroke='%23ffd23f'%20stroke-width='6'%20stroke-linecap='round'/%3E%3C/svg%3E") bottom center / 100% 9px no-repeat;
}

/* ---------- Features ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.4rem;
}
.card {
  background: var(--card);
  border: var(--outline);
  border-radius: 20px 26px 18px 24px;
  padding: 1.5rem 1.3rem;
  box-shadow: var(--shadow);
  transform: rotate(var(--tilt, 0deg));
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:nth-child(odd) { --tilt: -1.1deg; }
.card:nth-child(even) { --tilt: 1deg; }
.features .card:hover { transform: rotate(0deg) translateY(-4px); box-shadow: var(--shadow-lg); }
.card-emoji { font-size: 2rem; }
.card h3 { margin: .6rem 0 .35rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--ink-soft); font-size: .95rem; }

/* ---------- Steps (cómo jugar) ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--paper-soft);
  border: var(--outline);
  border-radius: 18px 24px 16px 22px;
  padding: 1.1rem 1.2rem;
  box-shadow: 4px 5px 0 rgba(47, 42, 37, .12);
}
.step-num {
  flex: 0 0 auto;
  width: 44px; height: 44px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 800; font-size: 1.2rem;
  color: var(--ink);
  background: var(--accent);
  border: 3px solid var(--ink);
}
.step:nth-child(6n+1) .step-num { background: var(--accent); }
.step:nth-child(6n+2) .step-num { background: var(--green); }
.step:nth-child(6n+3) .step-num { background: var(--blue); }
.step:nth-child(6n+4) .step-num { background: var(--red); }
.step:nth-child(6n+5) .step-num { background: var(--purple); }
.step:nth-child(6n+6) .step-num { background: var(--orange); }
.step:nth-child(6n+4) .step-num, .step:nth-child(6n+5) .step-num { color: #fff; }
.step h3 { margin: 0 0 .2rem; font-size: 1.1rem; }
.step p { margin: 0; color: var(--ink-soft); }

/* ---------- Capturas ---------- */
.shots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.6rem;
  justify-content: center;
}
.shot {
  margin: 0;
  padding: 8px;
  background: #fff;
  border: var(--outline);
  border-radius: 18px 24px 16px 22px;
  box-shadow: var(--shadow);
  transform: rotate(var(--tilt, 0deg));
}
.shot:nth-child(odd) { --tilt: -.8deg; }
.shot:nth-child(even) { --tilt: .9deg; }
.shot img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 10px;
}

/* ---------- Autoras ---------- */
.authors {
  display: grid;
  grid-template-columns: minmax(240px, 400px) 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}
.authors-photo {
  margin: 0;
  padding: 12px 12px 0;
  background: #fff;
  border: var(--outline);
  border-radius: 20px 26px 18px 24px;
  box-shadow: var(--shadow-lg);
  --tilt: -1.2deg;
  transform: rotate(var(--tilt));
}
.authors-photo img { width: 100%; display: block; border-radius: 10px; }
.authors-photo figcaption {
  font-family: var(--font-hand);
  text-align: center;
  padding: .6rem 0 .9rem;
}
.authors-text h2 { margin: 0 0 .7rem; font-size: clamp(1.6rem, 3.4vw, 2.2rem); }
.authors-text p { color: var(--ink-soft); margin: 0; }
.authors-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: 0;
  margin: 1.2rem 0 0;
}
.authors-tags li {
  font-family: var(--font-hand);
  font-size: .95rem;
  background: var(--paper-soft);
  border: 2px solid var(--ink);
  border-radius: 999px;
  padding: .25rem .85rem;
  box-shadow: 2px 3px 0 rgba(47, 42, 37, .12);
}

/* ---------- Descarga ---------- */
.download .download-box {
  position: relative;
  --tilt: -.6deg;
  max-width: 660px;
  margin: 0 auto;
  text-align: center;
  background: #fff;
  border: var(--outline);
  border-radius: 26px 34px 24px 30px;
  padding: 2.6rem 1.6rem;
  box-shadow: var(--shadow-lg);
  transform: rotate(var(--tilt));
}
.download .download-box::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 2px dashed rgba(47, 42, 37, .28);
  border-radius: 20px;
  pointer-events: none;
}
.download-icon {
  width: 96px; height: 96px;
  margin: 0 auto 1rem;
  border-radius: 22px;
  border: 3px solid var(--ink);
  background: #fff;
}
.download h2 { margin: 0 0 .6rem; }
.download p { color: var(--ink-soft); margin: 0 0 1.2rem; }
.download .hero-note { margin-top: 1rem; margin-bottom: 0; }

/* ---------- Footer ---------- */
.site-footer {
  text-align: center;
  padding: 1.8rem clamp(1rem, 4vw, 2.5rem);
  border-top: 3px dashed rgba(47, 42, 37, .35);
  color: var(--muted);
  font-size: .92rem;
}
.site-footer p { margin: .3rem 0; }
.site-footer a { color: var(--link); }
.dot { margin: 0 .5rem; opacity: .6; }

/* ---------- Reveal (animación al hacer scroll) ---------- */
/* Se conserva la inclinación (--tilt) de cada tarjeta al animar */
.reveal {
  opacity: 0;
  transform: translateY(18px) rotate(var(--tilt, 0deg));
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: rotate(var(--tilt, 0deg)); }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .hero-tagline { margin-inline: auto; }
  .main-nav a:not(.btn-cta) { display: none; }
  .card, .shot, .download .download-box, .authors-photo { --tilt: 0deg; }
  .hero-art img { transform: none; }
  .authors { grid-template-columns: 1fr; }
}