/* =========================================================
   hieuhfgr - VOI archive  |  style.css
   ========================================================= */

/* ── Reset & Base ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Colour Tokens ────────────────────────────── */
:root {
  --paper:       #f4ede0;
  --paper-dark:  #e8d9c0;
  --paper-mid:   #ddd0b4;
  --ink:         #2c1e0f;
  --ink-light:   #5a3e24;
  --sepia:       #8b6340;
  --sepia-light: #c49a68;
  --rust:        #a0432a;
  --sage:        #6b7c5e;
  --tape:        rgba(255, 230, 160, 0.55);
  --shadow:      rgba(44, 30, 15, 0.22);
}

/* ── Aged-paper noise texture ─────────────────── */
body {
  background-color: var(--paper);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E"),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 28px,
      rgba(139, 99, 64, 0.04) 28px,
      rgba(139, 99, 64, 0.04) 29px
    );
  font-family: 'Special Elite', 'Courier New', monospace;
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Parallax wrapper ────────────────────────── */
.parallax-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(160,67,42,0.06) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 90%, rgba(107,124,94,0.07) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

/* ── Page wrapper ────────────────────────────── */
.page {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
}

/* ── Loading message ─────────────────────────── */
.loading-msg {
  text-align: center;
  padding: 4rem;
  font-family: 'Caveat', cursive;
  font-size: 1.3rem;
  color: var(--sepia);
  opacity: 0.7;
}

/* ── HEADER ──────────────────────────────────── */
header {
  text-align: center;
  padding: 4rem 1rem 3rem;
  position: relative;
}

header::before,
header::after {
  content: '';
  display: block;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--sepia-light), var(--sepia), var(--sepia-light), transparent);
  margin: 0.8rem auto;
  max-width: 480px;
}

.header-eyebrow {
  font-family: 'Caveat', cursive;
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--rust);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.header-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2.4rem, 7vw, 4.8rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--ink);
  letter-spacing: -0.01em;
  opacity: 0;
  animation: fadeUp 0.9s 0.35s forwards;
}

.header-title em {
  font-style: italic;
  color: var(--sepia);
}

.header-sub {
  font-family: 'Caveat', cursive;
  font-size: clamp(0.95rem, 2.5vw, 1.25rem);
  color: var(--ink-light);
  margin-top: 0.8rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s forwards;
}

.doodle-underline {
  display: block;
  margin: 0.5rem auto 0;
  width: min(280px, 70%);
  opacity: 0;
  animation: fadeUp 0.8s 0.65s forwards;
}

/* ── TIMELINE SPINE ──────────────────────────── */
.timeline {
  position: relative;
  padding-top: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--paper-mid) 4%, var(--paper-mid) 96%, transparent);
  transform: translateX(-50%);
}

/* ── YEAR DIVIDERS ───────────────────────────── */
.year-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 3rem 0 1rem;
  position: relative;
  z-index: 2;
}

.year-label {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--paper);
  background: var(--sepia);
  padding: 0.25rem 1.1rem;
  border-radius: 2px;
  box-shadow: 2px 2px 6px var(--shadow);
  letter-spacing: 0.08em;
}

/* ── GALLERY ROW ─────────────────────────────── */
.gallery-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem 4rem;
  margin-bottom: 1.5rem;
  align-items: start;
}

.gallery-row .polaroid:nth-child(odd) {
  margin-top: 2rem;
}

/* ── POLAROID CARD ───────────────────────────── */
.polaroid {
  background: #faf6ee;
  padding: 0.8rem 0.8rem 2.6rem;
  box-shadow:
    0 2px 4px var(--shadow),
    0 6px 18px rgba(44,30,15,0.14),
    inset 0 0 0 1px rgba(180,150,100,0.2);
  cursor: pointer;
  position: relative;
  transform-origin: center center;
  will-change: transform;

  opacity: 0;
  transform: translateY(30px) rotate(var(--rot, 0deg));
  transition:
    opacity 0.55s ease,
    transform 0.55s ease,
    box-shadow 0.3s ease;
}

.polaroid.visible {
  opacity: 1;
  transform: translateY(0) rotate(var(--rot, 0deg));
}

.polaroid:hover {
  transform: translateY(-6px) rotate(calc(var(--rot, 0deg) * 0.4)) scale(1.03);
  box-shadow:
    0 8px 24px rgba(44,30,15,0.28),
    0 2px 6px var(--shadow);
  z-index: 10;
}

/* Masking-tape corners */
.polaroid::before,
.polaroid::after {
  content: '';
  position: absolute;
  width: 38px;
  height: 16px;
  background: var(--tape);
  border: 1px solid rgba(200,170,80,0.35);
  top: -8px;
}
.polaroid::before { left: 10px;  transform: rotate(-35deg); }
.polaroid::after  { right: 10px; transform: rotate(35deg);  }

/* ── Photo inside polaroid ───────────────────── */
.polaroid-img-wrap {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
  background: var(--paper-dark);
}

.polaroid-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: sepia(35%) contrast(0.92) brightness(0.97);
  transition: filter 0.35s ease, transform 0.45s ease;
}

.polaroid:hover .polaroid-img-wrap img {
  filter: sepia(15%) contrast(1) brightness(1.03);
  transform: scale(1.06);
}

/* Vignette */
.polaroid-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(44,30,15,0.28) 100%);
  pointer-events: none;
}

/* ── Polaroid caption ─────────────────────────── */
.polaroid-caption {
  font-family: 'Caveat', cursive;
  font-size: clamp(0.85rem, 2vw, 1.05rem);
  color: var(--ink-light);
  text-align: center;
  padding-top: 0.6rem;
  line-height: 1.35;
}

a {
  color: var(--rust);
  text-decoration: underline dotted;
}

.polaroid-caption .date {
  display: block;
  font-size: 0.78em;
  color: var(--sepia);
  margin-top: 0.15rem;
  font-family: 'Special Elite', monospace;
  letter-spacing: 0.05em;
}

/* ── Stamp badge ─────────────────────────────── */
.stamp {
  display: inline-block;
  border: 3px double var(--rust);
  color: var(--rust);
  font-family: 'Special Elite', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.55rem;
  transform: rotate(-8deg);
  opacity: 0.7;
  position: absolute;
  top: 0.6rem;
  right: 0.8rem;
  z-index: 3;
}

/* ── Doodle arrow ────────────────────────────── */
.doodle-arrow {
  position: absolute;
  opacity: 0.5;
  pointer-events: none;
}

/* ── Section note ────────────────────────────── */
.section-note {
  font-family: 'Caveat', cursive;
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--ink-light);
  text-align: center;
  margin: 0.5rem 0 2rem;
  opacity: 0.75;
}

/* ── FOOTER ──────────────────────────────────── */
footer {
  text-align: center;
  padding: 3rem 1rem 1.5rem;
  font-family: 'Caveat', cursive;
  font-size: 0.95rem;
  color: var(--sepia);
  opacity: 0.7;
  border-top: 1px dashed var(--paper-mid);
  margin-top: 3rem;
}

/* ── ANIMATIONS ──────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 640px) {
  .timeline::before { display: none; }

  .gallery-row {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .gallery-row .polaroid:nth-child(odd) {
    margin-top: 0;
  }
}

/* ── LIGHTBOX ─────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(20, 12, 4, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
  padding: 1.5rem;
}

.lightbox.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-inner {
  max-width: min(90vw, 680px);
  width: 100%;
  background: #faf6ee;
  padding: 1rem 1rem 2rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  transform: scale(0.92);
  transition: transform 0.35s;
  position: relative;
}

.lightbox.open .lightbox-inner { transform: scale(1); }

.lightbox-inner img {
  width: 100%;
  display: block;
  filter: sepia(15%) contrast(0.96);
  max-height: 60vh;
  object-fit: contain;
}

.lightbox-caption {
  font-family: 'Caveat', cursive;
  font-size: 1.1rem;
  color: var(--ink-light);
  text-align: center;
  padding-top: 0.6rem;
  font-weight: 600;
  line-height: 1.4;
}

.lightbox-description {
  font-family: 'Special Elite', monospace;
  font-size: 0.82rem;
  color: var(--sepia);
  text-align: center;
  padding-top: 0.5rem;
  line-height: 1.6;
  max-width: 520px;
  margin: 0 auto;
  font-style: italic;
  opacity: 0.85;
}

.lightbox-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 32px;
  height: 32px;
  background: var(--rust);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Special Elite', monospace;
  box-shadow: 0 2px 8px rgba(0,0,0,0.35);
  transition: background 0.2s;
}

.lightbox-close:hover { background: var(--sepia); }

/* ── Side decorations ────────────────── */
.side-deco {
  position: fixed;
  top: 0;
  width: 130px;
  height: 100vh;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.72;
  z-index: 0;
}

.side-deco--left  { left: 0; }
.side-deco--right { right: 0; transform: scaleX(-1); } /* mirror left SVG */

.side-deco svg {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

/* Hide on small screens so they don't crowd content */
@media (max-width: 900px) {
  .side-deco { display: none; }
}