/* ============================================================
   Para Elena — estilos (formato móvil)
   tokens → base → acceso → vídeo → postal → tarjetas → chrome
   ============================================================ */

:root {
  --paper: #f4ece1;
  --paper-2: #e9ddcb;
  --card: #fbf7f0;
  --ink: #2a211c;
  --ink-soft: #6b5d52;
  --ink-faint: #9a8b7e;
  --line: rgba(42, 33, 28, 0.12);
  --coral: #d4553a;
  --coral-deep: #b8432b;
  --sea: #2f6f6a;
  --sea-soft: #cfe1dd;
  --night: #0e0b0a;
  --light: #f4ece1;
  --light-soft: rgba(244, 236, 225, 0.72);
  --light-faint: rgba(244, 236, 225, 0.45);

  --font-display: "Cormorant Garamond", "Times New Roman", serif;
  --font-ui: "Jost", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-hand: "Caveat", "Segoe Script", cursive;

  --shadow: 0 24px 60px -28px rgba(42, 33, 28, 0.45), 0 2px 8px rgba(42, 33, 28, 0.06);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 280ms;

  --top-h: 78px;
  --bottom-h: 104px;
  --sat: env(safe-area-inset-top, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--paper); }
body {
  margin: 0; min-height: 100dvh;
  background: var(--paper); color: var(--ink);
  font-family: var(--font-ui); font-weight: 300; font-size: 16px; line-height: 1.5;
  overflow-x: hidden; -webkit-font-smoothing: antialiased;
}
body.is-dark { background: var(--night); }
body::after {
  content: ""; position: fixed; inset: 0; z-index: 50; pointer-events: none;
  opacity: 0.28; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.3 0 0 0 0 0.25 0 0 0 0 0.2 0 0 0 0.18 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
body.is-dark::after { mix-blend-mode: screen; opacity: 0.08; }

button { font: inherit; color: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; }
img, video { display: block; max-width: 100%; }

.screen { display: none; min-height: 100dvh; }
.screen.is-active { display: flex; flex-direction: column; }
.shell { width: 100%; max-width: 480px; margin: 0 auto; padding: 20px; flex: 1; display: flex; flex-direction: column; }

.eyebrow { font-weight: 400; font-size: 0.7rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ink-faint); }
.display { font-family: var(--font-display); font-weight: 500; font-style: italic; line-height: 1.12; letter-spacing: -0.005em; }

/* botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 54px; padding: 0 26px; border-radius: 999px; border: 0;
  background: var(--ink); color: var(--paper);
  font: 400 0.95rem var(--font-ui); letter-spacing: 0.08em;
  transition: transform 160ms var(--ease-out), background var(--dur), opacity var(--dur);
}
.btn:active { transform: scale(0.97); }
.btn-block { width: 100%; }
.btn-coral { background: var(--coral); color: #fff; }
.btn-coral:hover { background: var(--coral-deep); }
.btn-light { background: var(--paper); color: var(--ink); }
.btn-glass { background: rgba(244, 236, 225, 0.12); color: var(--light); border: 1px solid rgba(244, 236, 225, 0.28); backdrop-filter: blur(10px); }
.btn-glass:hover { background: rgba(244, 236, 225, 0.22); }
.link-quiet { background: none; border: 0; color: var(--ink-faint); text-decoration: underline; text-underline-offset: 4px; font-size: 0.88rem; padding: 12px; align-self: center; }

/* ---------- 1. acceso (oscuro, fotograma del vídeo) ---------- */
#gate { position: relative; color: var(--light); background: var(--night); }
.gate-bg {
  position: absolute; inset: 0; overflow: hidden;
  background: url("assets/poster.jpg") center / cover no-repeat;
  filter: blur(26px) saturate(1.1) brightness(0.55); transform: scale(1.15);
}
#gate::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,11,10,0.25), rgba(14,11,10,0.55) 50%, rgba(14,11,10,0.9));
}
.gate-shell { position: relative; justify-content: center; padding-top: calc(32px + var(--sat)); padding-bottom: calc(32px + var(--sab)); }
.gate-card { text-align: center; }
.gate-mark { width: 44px; height: 44px; margin: 0 auto 22px; color: var(--light-soft); }
#gate .eyebrow { color: var(--light-faint); }
.gate-title { font-size: clamp(2.8rem, 13vw, 3.8rem); margin: 0 0 6px; color: var(--light); }
.gate-sub { color: var(--light-soft); margin: 0 0 40px; font-size: 0.95rem; }
.field { text-align: left; }
.field label { display: block; font-size: 0.72rem; font-weight: 400; letter-spacing: 0.2em; text-transform: uppercase; color: var(--light-faint); margin-bottom: 10px; }
.input-row { position: relative; }
.input-row input {
  width: 100%; height: 58px; padding: 0 58px 0 20px;
  border: 1px solid rgba(244,236,225,0.22); border-radius: 16px;
  background: rgba(244,236,225,0.08); color: var(--light); backdrop-filter: blur(10px);
  font: 400 1.1rem var(--font-ui); letter-spacing: 0.1em;
  transition: border-color var(--dur), box-shadow var(--dur), background var(--dur);
}
.input-row input:focus { outline: none; border-color: rgba(244,236,225,0.6); background: rgba(244,236,225,0.12); }
.input-row .eye { position: absolute; right: 7px; top: 7px; width: 44px; height: 44px; border: 0; background: transparent; border-radius: 12px; color: var(--light-faint); display: grid; place-items: center; }
.input-row .eye:hover { color: var(--light); }
.hint { font-size: 0.85rem; color: var(--light-faint); margin: 12px 2px 0; }
.error { font-size: 0.9rem; color: #f3a08c; margin: 8px 2px 0; min-height: 1.3em; }
.gate-card.is-wrong .input-row { animation: shake 420ms var(--ease-out); }
#gate .btn-block { margin-top: 22px; }

/* ---------- 2. vídeo ---------- */
#video-screen { background: var(--night); color: var(--light); }
.video-wrap { position: relative; flex: 1; display: grid; place-items: center; min-height: 100dvh; }
.video-wrap video { height: 100dvh; width: auto; max-width: 100vw; object-fit: contain; }
.video-overlay { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 14px; background: rgba(14,11,10,0.5); backdrop-filter: blur(6px); }
.video-overlay[hidden] { display: none; }
.play-btn { width: 86px; height: 86px; border-radius: 50%; border: 0; background: var(--paper); color: var(--ink); display: grid; place-items: center; box-shadow: 0 20px 50px -10px rgba(0,0,0,0.6); }
.play-label { font-size: 0.85rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--light-soft); }
.video-actions { position: absolute; left: 0; right: 0; bottom: calc(22px + var(--sab)); display: flex; justify-content: center; gap: 12px; padding: 0 20px; }
.video-skip { opacity: 0; transition: opacity 500ms; pointer-events: none; }
.video-skip.is-visible { opacity: 1; pointer-events: auto; }

/* ---------- 3. postal (correo aéreo) ---------- */
#postal { background: var(--paper); }
#postal::before {
  content: ""; position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(70% 45% at 10% 0%, rgba(212,85,58,0.16), transparent 70%),
    radial-gradient(60% 45% at 95% 100%, rgba(47,111,106,0.2), transparent 70%);
}
.postal-shell { justify-content: center; padding-top: calc(24px + var(--sat)); padding-bottom: calc(24px + var(--sab)); }
.postcard {
  position: relative; background: var(--card); border-radius: 18px; padding: 9px;
  box-shadow: var(--shadow); transform: rotate(-0.6deg);
  animation: rise 500ms var(--ease-out) both;
}
.postcard::before {
  content: ""; position: absolute; inset: 0; border-radius: 18px; padding: 9px;
  background: repeating-linear-gradient(135deg, var(--coral) 0 14px, transparent 14px 28px, var(--sea) 28px 42px, transparent 42px 56px);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0.85;
}
.postcard-inner { position: relative; background: var(--card); border-radius: 11px; padding: 22px 22px 24px; }
.postcard-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 14px; }
.postmark { width: 92px; height: 92px; color: var(--sea); opacity: 0.75; transform: rotate(-12deg); margin: -4px 0 0 -6px; }
.postmark svg { width: 100%; height: 100%; }
.stamp {
  position: relative; width: 74px; height: 92px; padding: 6px; background: #fff;
  transform: rotate(5deg); margin-top: -2px;
  -webkit-mask: radial-gradient(circle at 0 0, transparent 4px, #000 4.5px) 0 0 / 12px 12px round;
  mask: radial-gradient(circle at 0 0, transparent 4px, #000 4.5px) 0 0 / 12px 12px round;
  box-shadow: 0 6px 16px -8px rgba(0,0,0,0.4);
}
.stamp img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.25) contrast(1.05); }
.stamp-val { position: absolute; right: 9px; bottom: 8px; font: 500 0.7rem var(--font-ui); color: #fff; text-shadow: 0 1px 3px rgba(0,0,0,0.6); }
.postcard-eyebrow { margin: 0 0 8px; }
.postcard-title { font-size: clamp(1.9rem, 8vw, 2.5rem); margin: 0 0 12px; color: var(--ink); }
.postcard-text { font-family: var(--font-display); font-style: italic; font-size: 1.55rem; line-height: 1.28; color: var(--ink-soft); margin: 0 0 26px; }
.postcard-foot { display: flex; align-items: center; gap: 14px; }
.postcard-rule { flex: 1; height: 1px; background: var(--line); }
.postcard-sign { font-family: var(--font-hand); font-size: 2.2rem; line-height: 1; color: var(--coral-deep); transform: rotate(-4deg); }
.postal-actions { display: flex; flex-direction: column; gap: 6px; margin-top: 30px; animation: riseFlat 500ms 120ms var(--ease-out) both; }

/* ---------- 4. tarjetas ---------- */
#days { position: relative; background: var(--paper); color: var(--ink); transition: background 400ms, color 400ms; }
#days.theme-dark { background: var(--night); color: var(--light); }
#card-mount { min-height: 100dvh; }

.card {
  position: relative; min-height: 100dvh; display: flex; flex-direction: column;
  padding: calc(var(--top-h) + var(--sat)) 0 calc(var(--bottom-h) + var(--sab));
  animation: cardIn var(--dur) var(--ease-out) both;
}
.card.dir-back { animation-name: cardInBack; }
.card-body { padding: 0 26px; }
.card-text { margin: 0; font-size: clamp(1.6rem, 6.6vw, 2.05rem); }
.card-sub { font-family: var(--font-display); font-style: italic; font-size: 1.25rem; line-height: 1.32; margin: 14px 0 0; opacity: 0.72; }
.card-place { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 14px; font-size: 0.7rem; letter-spacing: 0.22em; text-transform: uppercase; font-weight: 400; opacity: 0.75; }
.card-place::before { content: ""; width: 18px; height: 1px; background: currentColor; }

/* a) medio vertical: a sangre, texto encima */
.card.cover { color: var(--light); }
.card.cover .card-bg { position: absolute; inset: 0; overflow: hidden; }
.card.cover .card-bg img, .card.cover .card-bg video { width: 100%; height: 100%; object-fit: cover; object-position: 50% 35%; }
.card.cover .card-bg img { animation: kenburns 14s ease-in-out both; }
.card.cover .card-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,11,10,0.45) 0%, rgba(14,11,10,0) 28%, rgba(14,11,10,0) 45%, rgba(14,11,10,0.55) 70%, rgba(14,11,10,0.92) 100%);
}
.card.cover .card-body { position: relative; margin-top: auto; padding-bottom: 8px; }
.card.cover .card-text { text-shadow: 0 2px 20px rgba(0,0,0,0.35); }

/* b) medio horizontal: ventana arriba con fondo difuminado, texto abajo */
.card.inset .card-photo { position: relative; height: 44dvh; min-height: 260px; overflow: hidden; margin-top: -8px; }
.card.inset .card-photo .blur { position: absolute; inset: -40px; background-size: cover; background-position: center; filter: blur(28px) brightness(0.6) saturate(1.15); transform: scale(1.1); }
.card.inset .card-photo img.main, .card.inset .card-photo video.main { position: relative; width: 100%; height: 100%; object-fit: contain; }
.card.inset .card-photo::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 60px; background: linear-gradient(transparent, var(--paper)); pointer-events: none; }
.card.inset .card-body { padding-top: 26px; }

/* botón de sonido en tarjetas con vídeo */
.sound-btn {
  position: absolute; z-index: 3; right: 16px; top: calc(var(--top-h) + var(--sat) + 4px);
  display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 14px 0 12px;
  border-radius: 999px; border: 1px solid rgba(244,236,225,0.3);
  background: rgba(14,11,10,0.38); color: var(--light); backdrop-filter: blur(10px);
  font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; font-weight: 400;
}
.sound-btn svg { width: 18px; height: 18px; }
.card.inset .sound-btn { top: auto; bottom: 16px; right: 16px; }
.card.inset .card-photo { position: relative; }

/* c) solo texto: numeral grande y frase centrada */
.card.plain { justify-content: center; }
.card.plain .numeral {
  position: absolute; top: calc(var(--top-h) + var(--sat) + 2vh); left: 14px;
  font-family: var(--font-display); font-weight: 600; font-style: italic;
  font-size: 38vw; line-height: 0.8; color: var(--coral); opacity: 0.09; pointer-events: none; user-select: none;
}
.card.plain .card-body { position: relative; padding: 0 28px; }
.card.plain .card-text { font-size: clamp(1.95rem, 8.4vw, 2.6rem); }
.card.plain .card-rule { width: 36px; height: 2px; background: var(--coral); margin: 0 0 22px; }

/* trozos largos: letra algo más pequeña para que quepan */
.card.long .card-text { font-size: clamp(1.4rem, 5.9vw, 1.8rem); }
.card.long .card-sub { font-size: 1.12rem; margin-top: 12px; }
.card.plain.long .card-text { font-size: clamp(1.6rem, 6.8vw, 2.1rem); }
.card.inset.long .card-photo { height: 38dvh; min-height: 220px; }

/* d) cumpleaños (oscura) */
.card.birthday { color: var(--light); justify-content: center; }
.card.birthday .card-body { position: relative; padding: 0 28px; }
.card.birthday .card-place { color: var(--light-faint); opacity: 1; }
.card.birthday .bday-date { font-family: var(--font-display); font-weight: 500; font-size: clamp(2.6rem, 12vw, 3.6rem); line-height: 1; letter-spacing: 0.02em; margin: 0 0 18px; }
.card.birthday .bday-date b { color: var(--coral); font-weight: 500; }
.card.birthday .card-text { font-size: clamp(1.6rem, 6.8vw, 2rem); }
.card.birthday .bday-count { display: flex; align-items: baseline; gap: 12px; margin-top: 34px; padding-top: 22px; border-top: 1px solid rgba(244,236,225,0.14); }
.card.birthday .bday-num { font-family: var(--font-display); font-size: 4.4rem; line-height: 1; color: var(--coral); font-weight: 500; }
.card.birthday .bday-lab { color: var(--light-soft); font-size: 0.95rem; max-width: 200px; line-height: 1.35; }
.card.birthday .glow { position: absolute; inset: 0; background: radial-gradient(60% 40% at 80% 20%, rgba(212,85,58,0.25), transparent 70%), radial-gradient(50% 40% at 10% 90%, rgba(47,111,106,0.25), transparent 70%); pointer-events: none; }

/* ---------- chrome (arriba / abajo) ---------- */
.chrome-top {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  padding: calc(12px + var(--sat)) 16px 10px;
  background: linear-gradient(var(--paper) 0%, rgba(244,236,225,0.85) 50%, transparent);
  transition: background 400ms;
}
.theme-dark .chrome-top { background: linear-gradient(rgba(14,11,10,0.7), transparent); }
.segments { display: flex; gap: 3px; height: 3px; margin-bottom: 12px; }
.segments i { flex: 1; border-radius: 3px; background: rgba(42,33,28,0.14); transition: background 300ms; }
.segments i.done { background: var(--coral); }
.segments i.now { background: var(--coral); box-shadow: 0 0 0 2px rgba(212,85,58,0.25); }
.theme-dark .segments i { background: rgba(244,236,225,0.22); }
.theme-dark .segments i.done, .theme-dark .segments i.now { background: var(--light); box-shadow: none; }
.chrome-row { display: flex; align-items: center; justify-content: space-between; }
.brand { font-family: var(--font-display); font-style: italic; font-size: 1.25rem; }
.counter { font-size: 0.78rem; letter-spacing: 0.18em; font-weight: 400; opacity: 0.7; font-variant-numeric: tabular-nums; }
.icons { display: flex; gap: 2px; margin-right: -10px; }
.icon-btn { width: 44px; height: 44px; border-radius: 12px; border: 0; background: transparent; color: inherit; opacity: 0.75; display: grid; place-items: center; }
.icon-btn:hover { opacity: 1; }
.icon-btn svg { width: 20px; height: 20px; }

.chrome-bottom {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px 20px calc(18px + var(--sab));
  background: linear-gradient(transparent, rgba(244,236,225,0.9) 60%, var(--paper));
  transition: background 400ms;
}
.theme-dark .chrome-bottom { background: linear-gradient(transparent, rgba(14,11,10,0.75)); }
.nav-btn {
  width: 60px; height: 60px; border-radius: 50%; border: 1px solid transparent;
  display: grid; place-items: center; transition: transform 160ms var(--ease-out), opacity var(--dur), background var(--dur);
}
.nav-btn svg { width: 24px; height: 24px; }
.nav-btn:active:not(:disabled) { transform: scale(0.94); }
.nav-btn:disabled { opacity: 0.25; cursor: default; }
.nav-prev { background: transparent; border-color: rgba(42,33,28,0.2); color: inherit; }
.nav-next { background: var(--ink); color: var(--paper); }
.theme-dark .nav-prev { border-color: rgba(244,236,225,0.3); }
.theme-dark .nav-next { background: var(--light); color: var(--ink); }
.swipe-hint { font-size: 0.7rem; letter-spacing: 0.24em; text-transform: uppercase; opacity: 0.45; transition: opacity 600ms; }
.swipe-hint.is-gone { opacity: 0; }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: calc(var(--bottom-h) + var(--sab) + 6px);
  transform: translateX(-50%) translateY(10px);
  background: var(--ink); color: var(--paper); border-radius: 14px; padding: 12px 18px;
  font-size: 0.9rem; max-width: min(92vw, 420px); text-align: center;
  opacity: 0; pointer-events: none; z-index: 20; transition: opacity var(--dur), transform var(--dur) var(--ease-out);
}
.theme-dark .toast { background: var(--light); color: var(--ink); }
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- animación ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(16px) rotate(-0.6deg); } to { opacity: 1; transform: translateY(0) rotate(-0.6deg); } }
@keyframes riseFlat { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes cardIn { from { opacity: 0; transform: translateX(28px); } to { opacity: 1; transform: none; } }
@keyframes cardInBack { from { opacity: 0; transform: translateX(-28px); } to { opacity: 1; transform: none; } }
@keyframes kenburns { from { transform: scale(1); } to { transform: scale(1.08); } }
@keyframes shake { 0%,100% { transform: translateX(0); } 20% { transform: translateX(-8px); } 40% { transform: translateX(8px); } 60% { transform: translateX(-5px); } 80% { transform: translateX(5px); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; transition-duration: 1ms !important; }
}

/* pantallas grandes: centrar como si fuera un móvil */
@media (min-width: 600px) {
  #card-mount, .chrome-top, .chrome-bottom { max-width: 480px; margin-left: auto; margin-right: auto; }
  .chrome-top, .chrome-bottom { left: 50%; right: auto; width: 100%; transform: translateX(-50%); }
  .toast { bottom: calc(var(--bottom-h) + 6px); }
  .card.plain .numeral { font-size: 180px; }
}