:root {
  --navy-900: #070f24;
  --navy-800: #0c1a3d;
  --navy-700: #13275a;
  --gold: #e3b75f;
  --gold-soft: #f3dca8;
  --cream: #fbf7ef;
  --ink: #1b2233;
  --muted: #5e667a;
  --radius: 18px;
  --serif: "Playfair Display", Georgia, serif;
  --sans: "Be Vietnam Pro", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; }

#confetti {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 50;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 72px 20px 56px;
  color: #fff;
  text-align: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(227, 183, 95, 0.18), transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 110%, rgba(60, 100, 200, 0.35), transparent 70%),
    linear-gradient(180deg, var(--navy-900), var(--navy-800) 60%, var(--navy-700));
  overflow: hidden;
}
.stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 22%, #fff9, transparent),
    radial-gradient(1px 1px at 28% 68%, #fff8, transparent),
    radial-gradient(1.5px 1.5px at 44% 14%, #fffa, transparent),
    radial-gradient(1px 1px at 63% 42%, #fff7, transparent),
    radial-gradient(1.5px 1.5px at 78% 18%, #fff9, transparent),
    radial-gradient(1px 1px at 88% 72%, #fff8, transparent),
    radial-gradient(1px 1px at 8% 82%, #fff6, transparent),
    radial-gradient(1.5px 1.5px at 54% 86%, #fff7, transparent),
    radial-gradient(1px 1px at 35% 38%, #fff6, transparent),
    radial-gradient(1px 1px at 93% 40%, #fff7, transparent);
  animation: twinkle 6s ease-in-out infinite alternate;
}
@keyframes twinkle { from { opacity: 0.45; } to { opacity: 1; } }

.hero__inner { position: relative; max-width: 760px; width: 100%; }

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
}
.eyebrow--dark { color: #b48a3a; text-align: center; }

.cap {
  width: 64px;
  margin: 26px auto 14px;
  color: var(--gold);
  filter: drop-shadow(0 6px 18px rgba(227, 183, 95, 0.35));
  animation: float 4s ease-in-out infinite;
}
@keyframes float { 50% { transform: translateY(-8px) rotate(-3deg); } }

.name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.5rem, 8vw, 4.75rem);
  line-height: 1.1;
  background: linear-gradient(180deg, #fff 30%, var(--gold-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.degree {
  margin-top: 14px;
  font-size: clamp(1rem, 2.6vw, 1.2rem);
  color: #dfe5f5;
  font-weight: 400;
}
.degree span { font-size: 0.92em; color: #9fabcb; }

.countdown {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(8px, 2vw, 16px);
  max-width: 520px;
  margin: 40px auto 0;
}
.unit {
  padding: 18px 6px 14px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(227, 183, 95, 0.28);
  backdrop-filter: blur(6px);
}
.num {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.9rem, 6.5vw, 3rem);
  line-height: 1;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.lbl {
  display: block;
  margin-top: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-soft);
}
.countdown-done {
  margin-top: 36px;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 4vw, 2rem);
  color: var(--gold-soft);
}
.when { margin-top: 22px; color: #c7cfe4; letter-spacing: 0.04em; }
.when span { font-size: 0.9em; color: #9fabcb; }

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
}
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn--gold {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  color: var(--navy-900);
  box-shadow: 0 8px 24px rgba(227, 183, 95, 0.3);
}
.btn--ghost { border: 1px solid rgba(255, 255, 255, 0.35); color: #fff; }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.08); }

/* ---------- Sections ---------- */
.section { max-width: 1040px; margin: 0 auto; padding: 96px 20px 24px; }
.title {
  margin-top: 12px;
  text-align: center;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  line-height: 1.2;
  color: var(--navy-800);
}
.title em { color: #b48a3a; }
.lead {
  max-width: 640px;
  margin: 22px auto 0;
  text-align: center;
  color: var(--muted);
  font-size: 1.05rem;
}

.details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin-top: 48px;
}
.card {
  padding: 28px 24px;
  border-radius: var(--radius);
  background: #fff;
  text-align: center;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03), 0 14px 40px -18px rgba(12, 26, 61, 0.25);
  border: 1px solid #efe6d4;
}
.card__icon { font-size: 1.8rem; }
.card h3 {
  margin: 10px 0 8px;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #b48a3a;
  font-weight: 600;
}
.card p { color: var(--ink); }
.card__link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--navy-700);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
}

/* ---------- Timeline ---------- */
.timeline {
  list-style: none;
  position: relative;
  max-width: 620px;
  margin: 48px auto 0;
  padding-left: 32px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--gold), #d8dce8);
}
.timeline li { position: relative; padding-bottom: 34px; }
.timeline li:last-child { padding-bottom: 0; }
.dot {
  position: absolute;
  left: -32px;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cream);
  border: 2px solid var(--navy-700);
}
.dot--gold { background: var(--gold); border-color: var(--gold); box-shadow: 0 0 0 6px rgba(227, 183, 95, 0.25); }
.timeline time { font-size: 0.82rem; font-weight: 600; color: #b48a3a; letter-spacing: 0.06em; }
.timeline h3 { font-family: var(--serif); font-size: 1.3rem; font-weight: 500; color: var(--navy-800); }
.timeline p { color: var(--muted); }

/* ---------- Gallery ---------- */
.gallery-section { padding-bottom: 96px; }
.gallery {
  columns: 3 260px;
  column-gap: 16px;
  margin-top: 48px;
}
.photo {
  break-inside: avoid;
  margin-bottom: 16px;
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  cursor: zoom-in;
  background: #e9e3d6;
  box-shadow: 0 14px 34px -20px rgba(12, 26, 61, 0.45);
}
.photo img { width: 100%; height: auto; transition: transform 0.5s ease; }
.photo:hover img { transform: scale(1.04); }
.photo figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 28px 14px 12px;
  font-size: 0.88rem;
  color: #fff;
  background: linear-gradient(transparent, rgba(7, 15, 36, 0.75));
  opacity: 0;
  transition: opacity 0.3s;
}
.photo:hover figcaption, .photo:focus-visible figcaption { opacity: 1; }
.photo:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }

.gallery-empty {
  column-span: all;
  padding: 56px 20px;
  border: 2px dashed #d9cdb3;
  border-radius: var(--radius);
  text-align: center;
  color: var(--muted);
}
.gallery-empty strong { display: block; font-family: var(--serif); font-size: 1.3rem; color: var(--navy-800); font-weight: 500; }

/* ---------- Footer ---------- */
.footer {
  padding: 72px 20px 56px;
  text-align: center;
  color: #dfe5f5;
  background: linear-gradient(180deg, var(--navy-800), var(--navy-900));
}
.footer__thanks { font-family: var(--serif); font-size: clamp(1.3rem, 3.5vw, 1.7rem); line-height: 1.45; }
.footer__sign { margin-top: 14px; color: var(--gold-soft); font-style: italic; }
.footer__link { display: inline-block; margin-top: 22px; font-size: 0.85rem; color: #9fabcb; text-decoration: none; }
.footer__link:hover { color: #fff; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(7, 15, 36, 0.92);
  backdrop-filter: blur(4px);
}
.lightbox[hidden] { display: none; }
.lightbox figure { max-width: min(1100px, 100%); text-align: center; }
.lightbox img { max-height: 82vh; margin: 0 auto; border-radius: 10px; }
.lightbox figcaption { margin-top: 12px; color: #dfe5f5; }
.lightbox button {
  position: absolute;
  border: 0;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
}
.lightbox button:hover { background: rgba(255, 255, 255, 0.2); }
.lightbox__close { top: 18px; right: 18px; }
.lightbox__nav--prev { left: 18px; top: 50%; transform: translateY(-50%); }
.lightbox__nav--next { right: 18px; top: 50%; transform: translateY(-50%); }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 520px) {
  .unit { padding: 14px 4px 10px; }
  .lbl { font-size: 0.62rem; letter-spacing: 0.12em; }
  .lightbox__nav { top: auto !important; bottom: 18px; transform: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .stars, .cap { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}