/* ======================================================================
   EL COMIENZO DE NOSOTROS
   Tokens
   - void / carbon / dusk  → oscuridad con temperatura azulada
   - ink / ink-dim         → blanco roto, nunca blanco puro
   - chamoy                → el único acento cálido, usado con moderación
                             (por "chamoycito" — su color, no un cliché neón)
   ====================================================================== */

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

:root {
  --void: #07080a;
  --carbon: #101116;
  --carbon-2: #191b21;
  --dusk: #232a42;
  --ink: #efece5;
  --ink-dim: #a9a6a2;
  --ink-faint: #706e6a;
  --chamoy: #d9713a;
  --chamoy-soft: rgba(217, 113, 58, 0.32);
  --line: rgba(239, 236, 229, 0.1);

  --serif: 'Fraunces', 'Iowan Old Style', serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --gutter: clamp(1.5rem, 6vw, 6rem);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--void);
  color: var(--ink);
}

body {
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }

::selection {
  background: var(--chamoy-soft);
  color: var(--ink);
}

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

/* ---------------------------------------------------------------------
   Reveal-on-scroll (base state; JS toggles .is-visible)
   --------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(6px);
  transition:
    opacity 1.1s var(--ease),
    transform 1.1s var(--ease),
    filter 1.1s var(--ease);
  will-change: opacity, transform, filter;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: opacity 0.4s ease;
    transform: none;
    filter: none;
  }
}

/* stagger via inline custom property set by JS: --d (index) */
.reveal { transition-delay: calc(var(--d, 0) * 90ms); }

/* ---------------------------------------------------------------------
   Layout shell
   --------------------------------------------------------------------- */

.section {
  position: relative;
  min-height: auto;
  padding: clamp(4rem, 9vh, 6.5rem) var(--gutter);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2rem;
}

/* la intro y el cierre siguen siendo pantalla completa — el resto fluye
   como un solo recorrido continuo, sin cortes marcados entre bloques */
.section--intro,
.section--final {
  min-height: 100svh;
}

.eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
}

.section__title {
  font-size: clamp(1.8rem, 4.4vw, 3.1rem);
  max-width: 18ch;
}

.section__closing {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  color: var(--ink);
}

/* ---------------------------------------------------------------------
   1. INTRO
   --------------------------------------------------------------------- */

.section--intro {
  align-items: center;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(35, 42, 66, 0.5), transparent 60%),
    var(--void);
}

.intro__stage { display: flex; flex-direction: column; gap: 1.1rem; align-items: center; }

.intro__whisper {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.05rem, 2.4vw, 1.5rem);
  color: var(--ink-dim);
}

.intro__name {
  font-size: clamp(4rem, 16vw, 10rem);
  line-height: 0.95;
  color: var(--ink);
}

.intro__subtitle {
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  text-transform: uppercase;
}

.scrollcue {
  position: absolute;
  bottom: clamp(1.5rem, 5vh, 3rem);
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 46px;
  background: linear-gradient(var(--ink-faint), transparent);
  overflow: hidden;
}
.scrollcue span {
  display: block;
  width: 100%;
  height: 40%;
  background: var(--chamoy);
  animation: cue 2.2s ease-in-out infinite;
}
@keyframes cue {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(250%); }
}
@media (prefers-reduced-motion: reduce) { .scrollcue span { animation: none; opacity: 0.6; } }

/* ---------------------------------------------------------------------
   2. EL COMIENZO — prose
   --------------------------------------------------------------------- */

.section--prose {
  max-width: 46rem;
  margin: 0 auto;
  gap: 3rem;
}

.prose { display: flex; flex-direction: column; gap: 0.85rem; }
.prose--narrow { max-width: 34rem; margin: 0 auto; }
.prose--center { text-align: center; align-items: center; }

.prose__lead {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 400;
  color: var(--ink);
}

.prose__break { margin-top: 1.2rem; }

.prose__emphasis {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  color: var(--chamoy);
}

.prose__long {
  max-width: 40rem;
  color: var(--ink-dim);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
}

.photo-frame {
  align-self: center;
  width: min(560px, 80vw);
  aspect-ratio: 4 / 5;
  border-radius: 2px;
  background: var(--carbon-2);
  background-size: cover;
  background-position: center;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.7);
  overflow: hidden;
}
.photo-frame:empty { display: none; } /* sin foto asignada todavía: no ocupa espacio */
.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
}

/* ---------------------------------------------------------------------
   3. Y ENTONCES TE CONOCÍ — stacked reveal lines
   --------------------------------------------------------------------- */

.section--stack { align-items: center; text-align: center; }

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: center;
}

.stack--tight { gap: 0.5rem; }

.stack__line {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 3vw, 1.9rem);
  font-weight: 400;
  color: var(--ink-dim);
}

.stack__line--small { font-size: 1rem; color: var(--ink-faint); margin-top: 0.6rem; }
.stack__line--huge {
  font-size: clamp(2.6rem, 7vw, 5rem);
  color: var(--ink);
  font-style: italic;
}
.stack__line--sm { font-size: clamp(1rem, 1.8vw, 1.25rem); color: var(--ink-dim); }

/* ---------------------------------------------------------------------
   4. ÁLBUM
   --------------------------------------------------------------------- */

.section--album { min-height: auto; padding-bottom: clamp(4rem, 10vh, 7rem); gap: 3rem; }

.gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem);
  max-width: 76rem;
  margin: 0 auto;
  width: 100%;
}

.gallery__empty {
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.95rem;
}
.gallery__empty code {
  color: var(--chamoy);
  font-family: var(--sans);
}

.gitem {
  position: relative;
  border-radius: 2px;
  overflow: hidden;
  background: var(--carbon-2);
  grid-column: span 12;
  cursor: zoom-in;
}
.gitem img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.4s var(--ease);
}
.gitem:hover img { transform: scale(1.04); }

/* layout variants, applied cyclically by JS via data-layout */
.gitem[data-layout="full"] { grid-column: span 12; aspect-ratio: 16/9; }
.gitem[data-layout="tall"] { grid-column: span 5; aspect-ratio: 3/4; }
.gitem[data-layout="wide"] { grid-column: span 7; aspect-ratio: 4/3; }
.gitem[data-layout="square"] { grid-column: span 4; aspect-ratio: 1/1; }
.gitem[data-layout="polaroid"] {
  grid-column: span 4;
  aspect-ratio: 4/5;
  background: var(--ink);
  padding: 0.9rem 0.9rem 2.4rem;
  border-radius: 1px;
  box-shadow: 0 30px 60px -25px rgba(0,0,0,0.6);
}
.gitem[data-layout="polaroid"] img { height: calc(100% - 0.5rem); border-radius: 0; }
.gitem[data-layout="polaroid"] .gitem__caption {
  position: static;
  color: var(--void);
  background: none;
  padding: 0.5rem 0.1rem 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.85rem;
}

.gitem__caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 1.4rem 1rem 0.9rem;
  background: linear-gradient(to top, rgba(0,0,0,0.65), transparent);
  color: var(--ink);
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .gitem, .gitem[data-layout] { grid-column: span 12 !important; aspect-ratio: 4/5; }
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 7, 0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4vh 4vw;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease);
  z-index: 200;
}
.lightbox.is-open { opacity: 1; pointer-events: auto; }
.lightbox img {
  max-width: 100%;
  max-height: 92svh;
  border-radius: 2px;
  box-shadow: 0 40px 100px -20px rgba(0,0,0,0.8);
}
.lightbox__close {
  position: absolute;
  top: clamp(1rem, 4vh, 2rem);
  right: clamp(1rem, 4vw, 2rem);
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  width: 40px; height: 40px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
}

/* ---------------------------------------------------------------------
   5. COSAS QUE AMO DE TI — word cloud
   --------------------------------------------------------------------- */

.love-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
  justify-content: center;
  align-items: baseline;
  max-width: 64rem;
  margin: 0 auto;
  text-align: center;
}

.love-cloud__item {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 2vw, 1.4rem);
  color: var(--ink-dim);
}
.love-cloud--md { font-size: clamp(1.3rem, 2.8vw, 1.9rem); color: var(--ink); }
.love-cloud--lg { font-size: clamp(1.6rem, 3.6vw, 2.4rem); color: var(--ink); font-style: italic; }
.love-cloud--huge {
  display: block;
  width: 100%;
  font-size: clamp(2.2rem, 5.6vw, 3.6rem);
  color: var(--chamoy);
  font-style: italic;
  margin-top: 1rem;
}

/* ---------------------------------------------------------------------
   6. NUESTRAS COSAS — chips
   --------------------------------------------------------------------- */

.section--ours { align-items: center; text-align: center; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
  max-width: 50rem;
}

.chip {
  padding: 0.65rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--ink-dim);
  transition: border-color 0.4s var(--ease), color 0.4s var(--ease);
}
.chip:hover { border-color: var(--chamoy); color: var(--ink); }

/* ---------------------------------------------------------------------
   DISTANCIA
   --------------------------------------------------------------------- */

.section--distance { gap: 3.5rem; align-items: center; }

/* ---------------------------------------------------------------------
   9. GRATITUD
   --------------------------------------------------------------------- */

.gratitude-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 40rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.gratitude-list li {
  padding-left: 1.4rem;
  position: relative;
  color: var(--ink-dim);
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.75rem;
}
.gratitude-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--chamoy);
}

/* ---------------------------------------------------------------------
   10. CASI TRES MESES
   --------------------------------------------------------------------- */

.section--timeline { align-items: center; text-align: center; gap: 2.6rem; }
.timeline__headline {
  font-size: clamp(2.4rem, 7vw, 4.5rem);
  color: var(--ink);
}

/* ---------------------------------------------------------------------
   11. CARTA — minimal, reduced effects
   --------------------------------------------------------------------- */

.section--letter {
  background: var(--carbon);
  align-items: center;
}
.letter { max-width: 38rem; }
.letter__body { display: flex; flex-direction: column; gap: 1.1rem; }
.letter__body p {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.9vw, 1.35rem);
  font-weight: 400;
  color: var(--ink-dim);
  line-height: 1.7;
}
.letter__signoff {
  font-style: italic;
  color: var(--chamoy);
  font-size: clamp(1.3rem, 2.6vw, 1.75rem) !important;
  margin-top: 0.6rem;
}
.letter__signoff--sm {
  color: var(--ink);
  font-size: clamp(1rem, 1.6vw, 1.15rem) !important;
}

/* ---------------------------------------------------------------------
   12. FINAL
   --------------------------------------------------------------------- */

.section--final {
  background: var(--void);
  align-items: center;
  text-align: center;
  min-height: 100svh;
}
.final__stage { display: flex; flex-direction: column; gap: 1.6rem; align-items: center; }
.final__line {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-dim);
  font-size: clamp(1rem, 2vw, 1.3rem);
}
.final__love {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  color: var(--ink);
}
.final__thanks {
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  color: var(--chamoy);
}
.final__whisper {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 1.5rem;
}

/* ---------------------------------------------------------------------
   Reel — signature chapter rail
   --------------------------------------------------------------------- */

.reel {
  position: fixed;
  top: 50%;
  right: clamp(1rem, 3vw, 2.2rem);
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 60;
}
.reel__tick {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ink-faint);
  opacity: 0.5;
  transition: all 0.5s var(--ease);
  display: block;
}
.reel__tick.is-active {
  background: var(--chamoy);
  opacity: 1;
  height: 18px;
  border-radius: 3px;
}
@media (max-width: 720px) { .reel { display: none; } }

/* ---------------------------------------------------------------------
   Player
   --------------------------------------------------------------------- */

.player {
  position: fixed;
  bottom: clamp(1rem, 3vh, 1.6rem);
  left: clamp(1rem, 3vw, 1.6rem);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(16, 17, 22, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.player__toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--ink-dim);
  font-family: var(--sans);
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0.1rem 0.2rem;
}
.player__note {
  color: var(--chamoy);
  font-size: 1rem;
  animation: pulse 2.4s ease-in-out infinite;
}
.player.is-paused .player__note { animation: none; opacity: 0.5; }
@keyframes pulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}
.player__volume {
  width: 60px;
  accent-color: var(--chamoy);
}

/* ---------------------------------------------------------------------
   Parallax utility (transform applied via JS)
   --------------------------------------------------------------------- */

[data-parallax] { will-change: transform; }
@media (prefers-reduced-motion: reduce) {
  [data-parallax] { transform: none !important; }
}