:root {
  --bg: #0b1021;
  --fg: #e6e8ee;
  --muted: #aab0c0;
  --primary: #7c3aed;
  --primary-2: #22d3ee;
  --glass: rgba(255,255,255,0.08);
  --glass-2: rgba(255,255,255,0.14);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Poppins, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color: var(--fg);
  background: radial-gradient(1200px 800px at 20% 10%, #101632 0%, #0b1021 38%, #090d1a 100%);
  overflow-x: hidden;
}
.bg { position: fixed; inset: 0; pointer-events: none; }
#confettiCanvas { position: fixed; inset: 0; pointer-events: none; z-index: 10; }
.glow {
  position: absolute;
  filter: blur(80px);
  opacity: 0.35;
  mix-blend-mode: screen;
  width: 40vw; height: 40vh;
  border-radius: 50%;
  animation: float 14s ease-in-out infinite;
}
.g1 { background: radial-gradient(circle at 30% 30%, #7c3aed, #22d3ee 60%, transparent 70%); left: -10vw; top: -10vh; }
.g2 { background: radial-gradient(circle at 70% 20%, #ef4444, #f97316 60%, transparent 70%); right: -8vw; top: 10vh; animation-delay: -4s; }
.g3 { background: radial-gradient(circle at 50% 70%, #22c55e, #06b6d4 60%, transparent 70%); left: 20vw; bottom: -10vh; animation-delay: -8s; }
@keyframes float { 50% { transform: translate3d(2vw, -1vh, 0) scale(1.08); } }

.site-header {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; backdrop-filter: blur(8px);
  background: linear-gradient(to bottom, rgba(0,0,0,0.3), transparent);
}
.brand { font-weight: 800; letter-spacing: 0.5px; }
.theme-toggle {
  border: none; background: var(--glass); color: var(--fg);
  padding: 10px 12px; border-radius: 12px; cursor: pointer;
}

.hero {
  position: relative;
  padding: 84px 20px 40px;
  max-width: 1100px; margin: 0 auto;
}
.hero-title {
  margin: 0;
  font-size: 52px;
  line-height: 1.05;
  background: linear-gradient(90deg, #fff, #a7f3d0 40%, #93c5fd 60%, #d8b4fe);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 1px;
}
.sparkle { display: inline-block; transform: translateY(-6px); font-size: 38px; }
.hero-sub { color: var(--muted); margin: 14px 0 22px; font-weight: 300; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 18px; border-radius: 14px; text-decoration: none;
  border: 1px solid transparent; transition: all .25s ease;
}
.btn.primary {
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  color: #0c1022; font-weight: 600;
}
.btn.ghost {
  border-color: rgba(255,255,255,0.15);
  color: var(--fg); background: var(--glass);
}
.btn:hover { transform: translateY(-2px); filter: saturate(1.2); }

.parallax { position: absolute; inset: 0; pointer-events: none; }
.layer {
  position: absolute; width: 160px; height: 160px;
  border-radius: 24px; filter: blur(1px);
  background: conic-gradient(from 90deg at 50% 50%, rgba(255,255,255,0.1), rgba(0,0,0,0.2));
}
.l1 { left: 8%; top: 20%; background: radial-gradient(#7c3aed 10%, transparent 65%); }
.l2 { right: 12%; top: 16%; background: radial-gradient(#22d3ee 10%, transparent 65%); width: 200px; height: 200px; }
.l3 { left: 14%; bottom: 10%; background: radial-gradient(#f97316 10%, transparent 65%); width: 120px; height: 120px; }

#heartCanvas {
  width: 100%; height: auto; margin-top: 30px;
  border-radius: 18px; background: rgba(255,255,255,0.03);
  aspect-ratio: 2 / 1;
}

.section-title {
  max-width: 1100px; margin: 40px auto 16px; padding: 0 20px;
  font-size: 22px; font-weight: 600; color: #e9eefc;
}
.gallery { padding-bottom: 40px; }
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 12px;
  max-width: 1100px; margin: 0 auto; padding: 0 20px;
}
.card {
  aspect-ratio: 4 / 3;
  border-radius: 16px;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  transform: translateZ(0);
  will-change: transform;
  contain: paint;
}
.card:hover { transform: scale(1.02); }
.reveal {
  opacity: 0;
  transform: translateY(26px) scale(0.98);
  transition: transform .6s cubic-bezier(.2,.7,.2,1), opacity .6s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.grid .c1 { grid-column: span 7; background-image: radial-gradient(#93c5fd, #7c3aed); }
.grid .c2 { grid-column: span 5; background-image: radial-gradient(#fda4af, #fb7185); }
.grid .c3 { grid-column: span 4; background-image: radial-gradient(#22d3ee, #06b6d4); }
.grid .c4 { grid-column: span 8; background-image: radial-gradient(#fde68a, #f59e0b); }
.grid .c5 { grid-column: span 5; background-image: radial-gradient(#86efac, #22c55e); }
.grid .c6 { grid-column: span 7; background-image: radial-gradient(#d8b4fe, #a78bfa); }
@media (max-width: 900px) {
  .grid .c1 { grid-column: span 12; }
  .grid .c2 { grid-column: span 12; }
  .grid .c3 { grid-column: span 6; }
  .grid .c4 { grid-column: span 6; }
  .grid .c5 { grid-column: span 6; }
  .grid .c6 { grid-column: span 6; }
}
@media (max-width: 560px) {
  .hero-title { font-size: 36px; }
  .sparkle { font-size: 26px; transform: translateY(-4px); }
  .grid { gap: 10px; }
  .grid .c3, .grid .c4, .grid .c5, .grid .c6 { grid-column: span 12; }
}

.landscape .hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 18px; padding: 36px 20px; align-items: center; }
.landscape #heartCanvas { height: 64vh; }
.landscape .parallax .layer { display: none; }
.landscape .grid { grid-template-columns: repeat(8, 1fr); }
.landscape .grid .c1 { grid-column: span 4; }
.landscape .grid .c2 { grid-column: span 4; }
.landscape .grid .c3 { grid-column: span 4; }
.landscape .grid .c4 { grid-column: span 4; }
.landscape .grid .c5 { grid-column: span 4; }
.landscape .grid .c6 { grid-column: span 4; }
@media (orientation: landscape) and (max-height: 520px) {
  .hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 18px; padding: 36px 20px; align-items: center; }
  #heartCanvas { height: 64vh; }
  .parallax .layer { display: none; }
  .grid { grid-template-columns: repeat(8, 1fr); }
  .grid .c1, .grid .c2, .grid .c3, .grid .c4, .grid .c5, .grid .c6 { grid-column: span 4; }
}

.messages {
  max-width: 1100px; margin: 0 auto; padding: 0 20px 60px;
}
.msg-form { display: grid; grid-template-columns: 1fr 2fr auto; gap: 10px; }
.input {
  width: 100%; padding: 12px 14px; border-radius: 14px; border: 1px solid rgba(255,255,255,0.12);
  background: var(--glass); color: var(--fg);
}
.area { min-height: 48px; resize: vertical; }
.msg-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 14px; }
.msg-list li {
  background: var(--glass-2);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 14px; padding: 14px 16px;
  display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start;
}
.msg-list .avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: radial-gradient(#7c3aed,#22d3ee);
}
.msg-list .meta { color: var(--muted); font-size: 12px; }
.msg-list .text { font-size: 14px; line-height: 1.5; }
@media (max-width: 720px) {
  .msg-form { grid-template-columns: 1fr 1fr; }
  .msg-form .btn { grid-column: span 2; }
}

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 16px 20px; text-align: center; color: var(--muted);
  background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
}

.heart {
  position: fixed; left: 0; top: 0; will-change: transform;
  width: 16px; height: 16px;
  background: radial-gradient(circle at 30% 30%, #fff, #f472b6 60%, #fb7185);
  transform-origin: center;
  pointer-events: none;
  filter: drop-shadow(0 6px 12px rgba(0,0,0,0.4));
  clip-path: path("M8 14 C 12 10, 16 8, 16 5 C 16 2, 13 0, 8 3 C 3 0, 0 2, 0 5 C 0 8, 4 10, 8 14 Z");
}

html[data-quality="low"] .glow {
  filter: blur(50px);
  opacity: 0.22;
  animation: none;
}
html[data-quality="low"] .layer { display: none; }
html[data-quality="low"] .btn { transition: none; }
html[data-quality="low"] .heart { filter: drop-shadow(0 3px 6px rgba(0,0,0,0.3)); }
html[data-quality="low"] .reveal { transition-duration: .38s; }

@media (prefers-reduced-motion: reduce) {
  .glow { animation: none; }
  .btn { transition: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
}

.card-text {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  padding: 12px; text-align: center; color: #0a0f1f;
  font-weight: 600; mix-blend-mode: overlay;
}