:root {
  --accent: #b48b6d;
  --ink: #2b2b2b;
  --soft: #f7f2ee;
  --hero-image: url("imgs/anhchinh.webp");
  --calendar-image: url("imgs/SERA2271.webp");
  --heart: #ff6aa2;
  --calendar-overlay: rgba(255, 255, 255, 0.34);
  --calendar-surface: rgba(255, 255, 255, 0.9);
  --calendar-day-color: #4b3d33;
  --calendar-muted: rgba(75, 61, 51, 0.18);
  --calendar-highlight: #b48b6d;
  --calendar-highlight-text: #ffffff;
  --calendar-heart: #ff7ea8;
  --calendar-font: "Playfair Display", serif;
}
html,
body {
  height: 100%;
}
body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    sans-serif;
  color: var(--ink);
  background: #fff;
  overflow-x: hidden;
}

.section-copy {
  max-width: 720px;
  line-height: 1.7;
  text-wrap: balance;
}

/* Intro */
#intro {
  position: fixed;
  inset: 0;
  background: var(--soft);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.45s ease, visibility 0.45s ease;
  will-change: opacity;
}
#intro.hidden {
  opacity: 0;
  visibility: hidden;
}
.intro-box {
  text-align: center;
  padding: 2.5rem 2rem;
  border-radius: 1.25rem;
  background: #fff;
  border: 1px solid #eadbd1;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  transform: translate3d(0, 16px, 0);
  opacity: 0;
  animation: introUp 0.35s ease forwards 0.05s;
  will-change: transform, opacity;
}
@keyframes introUp {
  to {
    transform: translateZ(0);
    opacity: 1;
  }
}
.intro-names {
  font-family: "Playfair Display", serif;
  font-size: clamp(2rem, 6vw, 3.2rem);
}
.intro-date {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.08em;
}
.intro-skip {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #888;
  cursor: pointer;
  user-select: none;
}

/* Hero */
.hero {
  background: linear-gradient(
      180deg,
      rgba(247, 242, 238, 0.7),
      rgba(247, 242, 238, 0.92)
    ),
    var(--hero-image) center/cover no-repeat;
  padding: 5rem 1rem;
  text-align: center;
  border-bottom: 1px solid #eee;
}
.names {
  font-family: "Playfair Display", serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 0.5px;
}
.and {
  color: var(--accent);
}
.date {
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em;
}
.badge-soft {
  background: var(--soft);
  color: var(--accent);
  border: 1px solid #eadbd1;
}
.section-title {
  font-family: "Playfair Display", serif;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
}
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--soft), transparent);
  margin: 2rem 0;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  border: none;
}
.btn-accent:hover {
  opacity: 0.92;
  color: #fff;
}
.footer {
  font-size: 0.9rem;
  color: #666;
}
.card {
  border-radius: 1rem;
}
.gallery img {
  object-fit: cover;
  object-position: 50% 15%;
  aspect-ratio: 2 / 3;
  height: auto;
  width: 100%;
  border-radius: 0.75rem;
}

/* If you want to control a specific image, add class="focus-top" to the <img> and
   tune the percentage below (smaller Y value = shows more top) */
.gallery img.focus-top {
  object-position: 50% 8%;
}

/* Map small */
.map-box {
  max-width: 500px;
}

/* Gift box */
.gift {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.25rem;
  border: 1px dashed #eadbd1;
  border-radius: 1rem;
  background: var(--soft);
  cursor: pointer;
  transition: transform 0.15s ease;
}
.gift:hover {
  transform: translateY(-1px);
}
.gift:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}
.gift svg {
  width: 28px;
  height: 28px;
}
.qr-img {
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}
.note {
  font-size: 0.95rem;
  color: #666;
}

/* Scroll reveal (optimized) */
.reveal {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  transition: opacity 0.4s ease, transform 0.4s ease;
  will-change: opacity, transform;
}
.reveal.show {
  opacity: 1;
  transform: translateZ(0);
}
@media (prefers-reduced-motion: reduce) {
  #intro,
  * {
    animation: none !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* Calendar card */
.calendar-card {
  position: relative;
  border-radius: 1.25rem;
  overflow: hidden;
  margin: 0 auto;
  max-width: min(100%, 780px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}
.calendar-backdrop {
  position: absolute;
  inset: 0;
  background: var(--calendar-image) top center/cover no-repeat;
  transform: scale(1.02);
}
.calendar-overlay {
  position: absolute;
  inset: 0;
  background: var(--calendar-overlay);
  backdrop-filter: blur(6px) saturate(1.05);
}
.calendar-shell {
  position: relative;
  z-index: 1;
  padding: clamp(1.6rem, 5vw, 2.6rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.cal-title {
  font-family: "Playfair Display", serif;
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  color: var(--calendar-day-color);
  margin: 0 0 0.35em;
  text-shadow: 0 10px 28px rgba(0, 0, 0, 0.1);
}
.cal-sub {
  margin: 0 0 clamp(1.2rem, 4vw, 1.8rem);
  color: var(--calendar-day-color);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
  opacity: 0.72;
}
.calendar-weekdays {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: min(2vw, 12px);
  margin-bottom: clamp(0.8rem, 3vw, 1.2rem);
}
.calendar-weekdays span {
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--calendar-day-color);
  opacity: 0.6;
}
.calendar-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: min(2vw, 12px);
}
.calendar-day {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--calendar-surface);
  border-radius: 1rem;
  box-shadow: 0 16px 36px var(--calendar-muted);
  color: var(--calendar-day-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.calendar-day span {
  font-family: var(--calendar-font);
  font-weight: 600;
  font-size: clamp(1.1rem, 3.4vw, 1.8rem);
  color: currentColor;
  text-shadow: none;
  position: relative;
  z-index: 2;
}
.calendar-day.is-empty {
  opacity: 0;
}
.calendar-day .calendar-heart {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 72%;
  height: 72%;
  fill: var(--calendar-heart);
  opacity: 0.85;
  filter: drop-shadow(0 10px 28px rgba(217, 122, 147, 0.25));
  z-index: 1;
}
.calendar-day.is-highlight {
  background: var(--calendar-highlight);
  color: var(--calendar-highlight-text);
  box-shadow: 0 20px 40px rgba(180, 139, 109, 0.35);
  transform: translateY(-2px);
}
.calendar-day.is-highlight .calendar-heart {
  fill: rgba(255, 255, 255, 0.52);
  filter: drop-shadow(0 10px 28px rgba(0, 0, 0, 0.15));
  opacity: 1;
}
.calendar-day:not(.is-empty):hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
}

@media (max-width: 520px) {
  .gallery img {
    object-position: 50% 22%;
  }
  .calendar-grid {
    gap: min(2.8vw, 10px);
  }
  .calendar-day .calendar-heart {
    width: 78%;
    height: 78%;
  }
  .cal-sub {
    font-size: 0.78rem;
    letter-spacing: 0.08em;
  }
}