/* ============ TOKENS ============ */
:root{
  --bg:#0b0a0c;
  --bg-soft:#100e13;
  --ink:#ece4d6;
  --ink-soft:rgba(236,228,214,.60);
  --ink-faint:rgba(236,228,214,.34);
  --gold:#c9a86a;
  --gold-bright:#e3c489;
  --gold-soft:rgba(201,168,106,.42);
  --rose:#d8a59c;
  --line:rgba(201,168,106,.20);
  --line-strong:rgba(201,168,106,.40);
  --serif:'Noto Serif SC','Songti SC','STSong',serif;
  --latin:'Cormorant Garamond','Noto Serif SC',serif;
  --sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  font-family:var(--serif);
  background:var(--bg);
  color:var(--ink);
  line-height:1.9;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* ============ TEXTURE & ATMOSPHERE ============ */
.grain{
  position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.045;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}
.vignette{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(120% 90% at 50% 30%,transparent 55%,rgba(0,0,0,.55) 100%);
}

/* ============ SCROLL PROGRESS ============ */
.progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:60;
  background:linear-gradient(90deg,var(--gold),var(--gold-bright));
  box-shadow:0 0 12px rgba(201,168,106,.5);
  transition:width .12s linear;
}

/* ============ DOT NAV ============ */
.dotnav{
  position:fixed;right:34px;top:50%;transform:translateY(-50%);
  z-index:55;display:flex;flex-direction:column;gap:18px;
}
.dotnav a{
  width:9px;height:9px;border-radius:50%;
  border:1px solid var(--gold-soft);
  position:relative;display:block;transition:.4s;
}
.dotnav a::after{
  content:attr(data-label);
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-family:var(--sans);font-size:11px;letter-spacing:.2em;
  color:var(--ink-faint);white-space:nowrap;opacity:0;transition:.4s;
}
.dotnav a:hover::after{opacity:1}
.dotnav a.active{
  background:var(--gold);border-color:var(--gold);
  box-shadow:0 0 14px rgba(201,168,106,.7);transform:scale(1.25);
}

/* ============ SECTION SHELL ============ */
section{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;z-index:2}
.section-inner{max-width:1040px;width:88%;padding:90px 0;z-index:3}
.eyebrow{
  font-family:var(--sans);font-size:11px;letter-spacing:.46em;
  text-transform:uppercase;color:var(--gold-soft);font-weight:400;
}
.ornament{
  display:flex;align-items:center;justify-content:center;gap:14px;
  margin:22px auto 0;color:var(--gold-soft);
}
.ornament::before,.ornament::after{
  content:'';height:1px;width:54px;
  background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
}
.ornament span{font-size:10px}

/* ============ HERO ============ */
#hero{
  flex-direction:column;text-align:center;overflow:hidden;
  background:radial-gradient(ellipse at 50% 38%,#171019 0%,var(--bg) 68%);
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(120px);opacity:.5;animation:breathe 8s ease-in-out infinite alternate}
.hero-glow.a{width:520px;height:520px;top:-160px;left:-80px;background:rgba(180,120,160,.16)}
.hero-glow.b{width:460px;height:460px;bottom:-200px;right:-120px;background:rgba(201,168,106,.12);animation-delay:-4s}
@keyframes breathe{0%{transform:scale(1);opacity:.4}100%{transform:scale(1.25) translate(20px,-10px);opacity:.7}}
.hero-inner{position:relative;z-index:3}
.hero-sub{font-family:var(--latin);font-style:italic;font-size:clamp(18px,2.6vw,26px);color:var(--ink-soft);letter-spacing:.08em;margin-bottom:18px;opacity:0;animation:rise 1.4s ease forwards .2s}
.hero-name{
  font-family:var(--serif);font-weight:300;
  font-size:clamp(40px,8vw,92px);letter-spacing:.16em;
  color:var(--ink);
  background:linear-gradient(135deg,var(--ink) 0%,var(--gold-bright) 50%,var(--rose) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  opacity:0;animation:rise 1.6s ease forwards .5s;
}
.hero-rule{height:1px;width:0;margin:34px auto;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);animation:rule 1.6s ease forwards 1.1s}
@keyframes rule{to{width:120px}}
.hero-foot{font-family:var(--sans);font-size:12px;letter-spacing:.4em;color:var(--ink-faint);opacity:0;animation:rise 1.4s ease forwards 1.4s}

/* ============ LETTER ============ */
#letter{background:linear-gradient(180deg,var(--bg),var(--bg-soft) 50%,var(--bg))}
.letter-card{
  position:relative;max-width:720px;margin:0 auto;
  padding:64px 60px;
  background:linear-gradient(150deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  border:1px solid var(--line);
  border-radius:4px;
  box-shadow:0 40px 120px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.04);
}
.letter-card::before{
  content:'';position:absolute;top:14px;left:14px;right:14px;bottom:14px;
  border:1px solid rgba(201,168,106,.10);border-radius:2px;pointer-events:none;
}
.letter-mark{
  position:absolute;top:-22px;left:50%;transform:translateX(-50%);
  width:44px;height:44px;border-radius:50%;
  background:radial-gradient(circle at 40% 35%,var(--gold-bright),var(--gold) 60%,#9c7e44);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--latin);font-style:italic;color:#2a1f12;font-size:20px;
  box-shadow:0 6px 20px rgba(201,168,106,.4);
}
.letter-label{font-family:var(--sans);font-size:11px;letter-spacing:.42em;text-transform:uppercase;color:var(--gold-soft);text-align:center;margin-bottom:30px}
.letter-body{font-size:clamp(15px,1.9vw,18px);line-height:2.25;color:var(--ink-soft);font-weight:300}
.letter-body .drop::first-letter{
  font-family:var(--serif);font-size:3.1em;line-height:.8;float:left;
  padding:6px 12px 0 0;color:var(--gold-bright);font-weight:400;
}
.letter-body .hl{color:var(--gold-bright);font-weight:400}
.letter-sign{margin-top:40px;text-align:right;font-family:var(--latin);font-style:italic;font-size:18px;letter-spacing:.06em;color:var(--ink-faint)}

/* ============ GALLERY ============ */
#gallery{background:var(--bg);padding:60px 0}
.gallery-head{text-align:center;margin-bottom:64px}
.gallery-title{font-family:var(--serif);font-weight:300;font-size:clamp(26px,4vw,40px);letter-spacing:.1em;margin-top:14px;color:var(--ink)}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:980px;margin:0 auto}
.gallery-item{position:relative;aspect-ratio:1/1;border-radius:3px;overflow:hidden;cursor:pointer;background:#15131a}
.gallery-item img{width:100%;height:100%;object-fit:cover;filter:brightness(.82) saturate(1.02) contrast(1.02);transition:transform 1.1s cubic-bezier(.2,.8,.2,1),filter .6s}
.gallery-item::after{content:'';position:absolute;inset:0;border:1px solid rgba(201,168,106,.0);transition:border-color .5s;border-radius:3px;pointer-events:none}
.gallery-item:hover img{transform:scale(1.07);filter:brightness(1) saturate(1.08)}
.gallery-item:hover::after{border-color:var(--line-strong)}
.gallery-cap{position:absolute;left:0;right:0;bottom:0;padding:26px 22px 20px;background:linear-gradient(180deg,transparent,rgba(8,7,10,.82));opacity:0;transform:translateY(10px);transition:.5s;font-family:var(--serif);font-size:14px;letter-spacing:.08em;color:var(--ink)}
.gallery-item:hover .gallery-cap{opacity:1;transform:translateY(0)}

/* ============ HEART ============ */
#heart{background:radial-gradient(ellipse at 50% 60%,#160e16 0%,var(--bg) 72%);flex-direction:column;text-align:center;gap:48px;padding:80px 0}
.heart-wrap{position:relative;width:300px;height:280px}
#heartCanvas{width:100%;height:100%}
.heart-msg{font-family:var(--serif);font-weight:300;font-size:clamp(17px,2.6vw,24px);line-height:2;letter-spacing:.1em;color:var(--ink-soft);max-width:480px}
.heart-msg b{color:var(--gold-bright);font-weight:400}

/* ============ PROMISE ============ */
#promise{background:linear-gradient(180deg,var(--bg),var(--bg-soft),var(--bg))}
.promise-head{text-align:center;margin-bottom:60px}
.promise-title{font-family:var(--serif);font-weight:300;font-size:clamp(26px,4vw,40px);letter-spacing:.1em;margin-top:14px}
.promise-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.promise-card{
  position:relative;padding:48px 32px 40px;text-align:center;
  background:linear-gradient(160deg,rgba(255,255,255,.035),rgba(255,255,255,.008));
  border:1px solid var(--line);border-radius:4px;transition:.55s;
}
.promise-card:hover{transform:translateY(-8px);border-color:var(--line-strong);box-shadow:0 24px 70px rgba(0,0,0,.45)}
.promise-num{font-family:var(--latin);font-style:italic;font-size:30px;color:var(--gold-soft);margin-bottom:18px}
.promise-card h3{font-family:var(--serif);font-weight:400;font-size:18px;letter-spacing:.12em;color:var(--ink);margin-bottom:14px}
.promise-card p{font-family:var(--sans);font-size:13.5px;line-height:1.95;color:var(--ink-soft);font-weight:300}
.promise-card .deco{position:absolute;top:0;left:50%;transform:translate(-50%,-50%);width:38px;height:38px;border-radius:50%;background:var(--bg);border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:14px}

/* ============ FINALE ============ */
#finale{flex-direction:column;text-align:center;overflow:hidden;background:radial-gradient(ellipse at 50% 50%,#18111a 0%,var(--bg) 70%)}
.finale-big{font-family:var(--serif);font-weight:200;font-size:clamp(40px,9vw,96px);letter-spacing:.22em;color:var(--ink);opacity:0;animation:rise 1.8s ease forwards .2s}
.finale-sub{font-family:var(--serif);font-weight:300;font-size:clamp(16px,2.4vw,22px);letter-spacing:.3em;color:var(--gold-soft);margin-top:22px;opacity:0;animation:rise 1.8s ease forwards .8s}
.finale-sparkles{position:absolute;inset:0;pointer-events:none;z-index:1}
.sparkle{position:absolute;width:3px;height:3px;border-radius:50%;background:var(--gold-bright);animation:twinkle 3.4s ease-in-out infinite}
@keyframes twinkle{0%,100%{opacity:0;transform:scale(.4)}50%{opacity:1;transform:scale(1)}}

/* ============ REVEAL (js-gated so content never hides if JS fails) ============ */
.js .reveal{opacity:0;transform:translateY(46px);transition:opacity 1.05s cubic-bezier(.2,.8,.2,1),transform 1.05s cubic-bezier(.2,.8,.2,1)}
.js .reveal.in{opacity:1;transform:none}
.js .gallery-item{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.8,.2,1)}
.js .gallery-item.in{opacity:1;transform:none}
@keyframes rise{to{opacity:1;transform:translateY(0)}}

/* ============ LIGHTBOX ============ */
.lightbox{position:fixed;inset:0;background:rgba(6,5,8,.94);display:none;align-items:center;justify-content:center;z-index:100;backdrop-filter:blur(24px);opacity:0;transition:opacity .4s}
.lightbox.on{display:flex;opacity:1}
.lightbox img{max-width:86vw;max-height:86vh;border-radius:4px;box-shadow:0 30px 100px rgba(0,0,0,.7);transform:scale(.94);transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.lightbox.on img{transform:scale(1)}
.lb-close{position:absolute;top:30px;right:36px;font-size:30px;color:var(--ink-faint);cursor:pointer;transition:.3s}
.lb-close:hover{color:var(--gold-bright)}

/* ============ RESPONSIVE ============ */
@media(max-width:820px){
  .gallery-grid,.promise-grid{grid-template-columns:1fr 1fr}
  .dotnav{right:16px}
  .letter-card{padding:52px 30px}
}
@media(max-width:520px){
  .gallery-grid,.promise-grid{grid-template-columns:1fr}
  .section-inner{width:90%}
  .dotnav{display:none}
}