:root{
  --blush:#fdf0ee; --rose:#b56b6b; --rose-deep:#8f4f4f;
  --sage:#7d8f6e; --cream:#fbf7f0; --ink:#4a3f3a; --muted:#9b8a83;
  --maxw:980px;
  --serif:'EB Garamond',serif; --display:'Cormorant Garamond',serif;
  --script:'Great Vibes',cursive; --sans:'Montserrat',sans-serif;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:var(--serif);color:var(--ink);background:var(--cream);line-height:1.65;font-size:18px}
img{max-width:100%;display:block}
.section{max-width:var(--maxw);margin:0 auto;padding:72px 20px}
.section h2{font-family:var(--display);font-weight:500;font-size:clamp(38px,6.2vw,54px);text-align:center;margin:0 0 6px;color:var(--rose-deep)}
.label{font-family:var(--sans);font-size:15px;letter-spacing:4px;text-transform:uppercase;color:var(--sage);text-align:center}
.divider{width:54px;height:1px;background:var(--rose);margin:14px auto 28px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}}

.hidden{display:none!important}
.hero-photo{display:none}
.hero{position:relative;min-height:100vh;display:flex;align-items:flex-end;justify-content:center;
  background:url('../assets/img/cover.jpg') center 78%/cover no-repeat;text-align:center;overflow:hidden}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.64) 0%,rgba(0,0,0,.34) 26%,rgba(0,0,0,.08) 52%,rgba(0,0,0,0) 78%)}
.hero-inner{position:relative;z-index:2;color:#fff;padding:20px 20px 13vh;text-shadow:0 2px 18px rgba(0,0,0,.6)}
.hero::after{content:'';position:absolute;left:0;right:0;bottom:0;height:170px;z-index:1;pointer-events:none;
  background:linear-gradient(to bottom,rgba(251,247,240,0) 0%,rgba(251,247,240,.5) 58%,var(--cream) 100%)}
.hero-pre{font-family:var(--sans);letter-spacing:6px;text-transform:uppercase;font-size:16px;margin:0}
.hero-names{font-family:var(--script);font-size:clamp(54px,11vw,96px);margin:14px 0 6px;font-weight:400;line-height:1.04}
.hero-names span{font-size:.55em;vertical-align:middle}
.hero-date{font-family:var(--display);letter-spacing:2px;font-size:clamp(19px,4.3vw,27px);margin:0 0 28px}
.countdown{display:flex;gap:14px;justify-content:center}
.countdown>div{min-width:62px;background:rgba(255,255,255,.16);backdrop-filter:blur(3px);border:1px solid rgba(255,255,255,.35);border-radius:12px;padding:12px 8px}
.countdown b{display:block;font-family:var(--display);font-size:clamp(30px,7vw,44px)}
.countdown span{font-family:var(--sans);font-size:13px;letter-spacing:2px;text-transform:uppercase}
.music-toggle{position:fixed;right:16px;bottom:16px;z-index:50;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--rose);background:rgba(255,255,255,.85);color:var(--rose-deep);font-size:18px;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.18)}
.music-toggle.playing{background:var(--rose);color:#fff}

.intro{max-width:680px;margin:0 auto;padding:60px 20px 4px;text-align:center}
.intro .monogram{width:clamp(280px,50vw,440px);height:auto;margin:0 auto 22px}
.intro-text{font-family:var(--display);font-style:italic;font-size:clamp(21px,3.8vw,28px);color:var(--rose-deep);margin:0;line-height:1.5}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.petal{position:absolute;top:-30px;width:14px;height:14px;background:radial-gradient(circle at 30% 30%,#fff,#f4c9c9);
  border-radius:80% 0 80% 0;opacity:.8;animation:fall linear forwards;pointer-events:none}
@keyframes fall{to{transform:translateY(112vh) rotate(380deg);opacity:0}}

.flipbook{margin:0 auto;max-width:820px;touch-action:pan-y}
.flipbook .page{background:#fff;box-shadow:0 0 18px rgba(0,0,0,.18)}
.flipbook .page img{width:100%;height:100%;object-fit:contain;display:block;background:#fff}
.album-hint{text-align:center;font-family:var(--sans);font-size:15px;color:var(--muted);margin-top:18px}
.album-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;margin-top:18px}
.album-grid img{aspect-ratio:2/3;object-fit:cover;border-radius:8px;cursor:pointer}
.lightbox{position:fixed;inset:0;z-index:80;background:rgba(20,12,12,.92);display:flex;align-items:center;justify-content:center}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:6px}
.lb-btn{position:absolute;top:50%;transform:translateY(-50%);font-size:40px;color:#fff;background:none;border:0;cursor:pointer;padding:0 18px}
.lb-prev{left:4px}.lb-next{right:4px}.lb-close{top:14px;right:14px;transform:none;font-size:30px}

.event-card{max-width:560px;margin:0 auto;text-align:center;background:var(--blush);border:1px solid #efd9d6;border-radius:16px;padding:34px 24px}
.event-venue{font-family:var(--display);font-size:clamp(26px,5.6vw,36px);color:var(--rose-deep);margin:0 0 4px}
.event-hall{font-family:var(--sans);font-size:16px;letter-spacing:2px;text-transform:uppercase;color:var(--sage);margin:0 0 18px}
.event-meta{list-style:none;padding:0;margin:0 0 24px;display:grid;gap:12px;font-size:18px}
.event-meta li{display:flex;justify-content:space-between;border-bottom:1px dashed #e3c9c6;padding-bottom:8px}
.event-meta b{font-family:var(--sans);font-weight:600;letter-spacing:1px;color:var(--sage);font-size:16px}
.btn-map{display:inline-block;font-family:var(--sans);font-size:16px;letter-spacing:1px;text-decoration:none;
  background:var(--rose);color:#fff;padding:12px 26px;border-radius:30px;transition:background .2s}
.btn-map:hover{background:var(--rose-deep)}

.act-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;max-width:820px;margin:0 auto}
.act-card{position:relative;min-height:380px;border-radius:18px;overflow:hidden;background-size:cover;background-position:center;display:flex;align-items:flex-end;box-shadow:0 10px 26px rgba(0,0,0,.16)}
.act-shade{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.74) 0%,rgba(0,0,0,.3) 45%,rgba(0,0,0,0) 80%)}
.act-body{position:relative;z-index:2;width:100%;padding:24px 22px;text-align:center;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.45)}
.act-ico{font-size:48px;display:block;margin-bottom:6px}
.act-card h3{font-family:var(--display);color:#fff;margin:.1em 0;font-weight:500;font-size:30px}
.act-card p{font-size:17px;margin:6px 0 0;color:rgba(255,255,255,.93)}

.rsvp-deadline{text-align:center;color:var(--muted);font-family:var(--sans);font-size:16px;margin-top:-6px}
.rsvp-form{max-width:520px;margin:18px auto 0;display:grid;gap:16px}
.rsvp-form label{font-family:var(--sans);font-size:16px;color:var(--sage);display:grid;gap:6px}
.rsvp-form input,.rsvp-form textarea{font-family:var(--serif);font-size:18px;padding:11px 13px;border:1px solid #e0cfca;border-radius:10px;background:#fff;color:var(--ink)}
.rsvp-attend{border:1px solid #e0cfca;border-radius:10px;margin:0;padding:12px 14px}
.rsvp-attend legend{font-family:var(--sans);font-size:16px;color:var(--sage);padding:0 6px}
.rsvp-attend label{flex-direction:row;display:flex;gap:8px;align-items:center;color:var(--ink);margin-top:6px;font-size:17px}
.rsvp-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rsvp-submit{justify-self:center;border:0;cursor:pointer}
.rsvp-status{text-align:center;font-family:var(--sans);font-size:16px;min-height:1.2em}
.rsvp-status.ok{color:var(--sage)} .rsvp-status.err{color:#b5453f}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}

.site-footer{background:var(--rose);color:#fff;text-align:center;padding:54px 20px}
.foot-script{font-family:var(--script);font-size:58px;margin:0}
.foot-date{font-family:var(--display);letter-spacing:2px;margin:4px 0 14px;font-size:19px}
.foot-thanks{font-family:var(--sans);font-size:16px;opacity:.9;max-width:440px;margin:0 auto}

/* ===== Mobile hero: ảnh full ngang (thấy TRỌN cô dâu chú rể), gradient hòa mép dưới vào nền kem ===== */
@media (max-width:760px){
  .hero{display:flex;flex-direction:column;justify-content:flex-start;align-items:stretch;
    min-height:auto;background:var(--cream);overflow:hidden;text-align:center}
  .hero-overlay,.hero-petals{display:none}
  .hero-photo{display:block;width:100%;height:auto;order:0;
    -webkit-mask-image:linear-gradient(to bottom,#000 58%,rgba(0,0,0,0) 99%);
    mask-image:linear-gradient(to bottom,#000 58%,rgba(0,0,0,0) 99%)}
  .hero-inner{order:1;position:relative;z-index:2;color:var(--ink);text-shadow:none;
    margin-top:-46vw;padding:48vw 20px 38px;
    background:linear-gradient(to top,var(--cream) 0%,var(--cream) 56%,rgba(251,247,240,.82) 76%,rgba(251,247,240,.4) 90%,rgba(251,247,240,0) 100%)}
  .hero-pre{color:var(--sage)}
  .hero-names{color:var(--rose-deep)}
  .hero-date{color:var(--muted)}
  .countdown>div{background:var(--blush);border:1px solid #ecd9d4;backdrop-filter:none}
  .countdown b{color:var(--rose-deep)}
  .countdown span{color:var(--sage)}
}