/* Thiệp Cưới Hay — Invite engine */
:root{
  --serif:'Cormorant Garamond','Playfair Display',Georgia,serif;
  --script:'Great Vibes',cursive;
  --sans:'Manrope','Be Vietnam Pro',system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);color:var(--ink,#2a241c);
  background:var(--bg,#f6f0e8);line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
button,input,textarea,select{font:inherit}

/* Floating controls */
.inv-float{
  position:fixed;z-index:80;display:flex;gap:10px;align-items:center;
}
.inv-float.top-left{top:16px;left:16px}
.inv-float.top-right{top:16px;right:16px}
.inv-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:999px;
  background:rgba(255,255,255,.82);backdrop-filter:blur(12px);
  border:1px solid rgba(0,0,0,.06);box-shadow:0 8px 24px rgba(0,0,0,.08);
  font-size:.78rem;letter-spacing:.04em;text-decoration:none;color:var(--ink,#2a241c);
}
.music-btn{
  width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(255,255,255,.88);backdrop-filter:blur(12px);
  box-shadow:0 8px 24px rgba(0,0,0,.12);color:var(--accent,#b8956c);
  display:grid;place-items:center;
}
.music-btn.playing{animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}

/* Envelope cover */
.envelope-screen{
  position:fixed;inset:0;z-index:100;display:grid;place-items:center;
  background:var(--cover-bg,linear-gradient(160deg,#1a1510,#3a2e24));
  color:#f7efe4;transition:opacity .7s var(--ease),visibility .7s;
}
.envelope-screen.hidden{opacity:0;visibility:hidden;pointer-events:none}
.envelope{
  width:min(86vw,340px);aspect-ratio:5/3.2;position:relative;
  perspective:900px;cursor:pointer;
}
.envelope-flap,.envelope-body,.envelope-card{
  position:absolute;inset:0;border-radius:8px;
}
.envelope-body{
  background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 30px 60px rgba(0,0,0,.35);
  display:grid;place-items:center;overflow:hidden;
}
.envelope-flap{
  clip-path:polygon(0 0,50% 58%,100% 0);
  background:linear-gradient(180deg,rgba(255,255,255,.22),rgba(255,255,255,.06));
  transform-origin:top center;transition:transform .9s var(--ease);
  z-index:3;border:0;
}
.envelope.open .envelope-flap{transform:rotateX(180deg);z-index:1}
.envelope-seal{
  position:absolute;left:50%;top:42%;transform:translate(-50%,-50%);
  width:54px;height:54px;border-radius:50%;z-index:4;
  background:radial-gradient(circle at 35% 30%,#e8c9a0,#9a7348);
  box-shadow:0 8px 20px rgba(0,0,0,.3);
  display:grid;place-items:center;font-family:var(--script);font-size:1.4rem;color:#3a2a1a;
  transition:opacity .4s .2s,transform .4s;
}
.envelope.open .envelope-seal{opacity:0;transform:translate(-50%,-50%) scale(.6)}
.envelope-card{
  background:var(--card,#fffaf3);color:var(--ink,#2a241c);
  transform:translateY(18%) scale(.92);opacity:0;z-index:2;
  transition:transform .9s var(--ease) .15s,opacity .6s .15s;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:18px;text-align:center;
}
.envelope.open .envelope-card{transform:translateY(-28%) scale(1);opacity:1}
.envelope-hint{
  margin-top:28px;font-size:.8rem;letter-spacing:.28em;text-transform:uppercase;
  opacity:.72;animation:blink 2s ease-in-out infinite;
}
@keyframes blink{0%,100%{opacity:.4}50%{opacity:.9}}
.cover-names{font-family:var(--script);font-size:clamp(1.8rem,6vw,2.4rem);line-height:1.15}
.cover-amp{font-family:var(--serif);font-style:italic;font-size:.95rem;opacity:.75;margin:4px 0}
.cover-date{font-family:var(--serif);letter-spacing:.18em;font-size:.85rem;margin-top:8px;opacity:.8}

/* Invite shell */
.invite{
  max-width:480px;margin:0 auto;min-height:100vh;
  position:relative;overflow:hidden;
  background:var(--bg,#f6f0e8);color:var(--ink,#2a241c);
}
.invite::before{
  content:"";pointer-events:none;position:fixed;inset:0;z-index:60;opacity:var(--grain,.04);
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}
.floral{
  position:absolute;width:120px;height:120px;opacity:.45;pointer-events:none;z-index:2;
  color:var(--accent,#b8956c);
}
.floral.tl{top:8px;left:8px;transform:rotate(-8deg)}
.floral.tr{top:8px;right:8px;transform:scaleX(-1) rotate(-8deg)}
.floral.bl{bottom:8px;left:8px;transform:scaleY(-1) rotate(-8deg)}
.floral.br{bottom:8px;right:8px;transform:scale(-1) rotate(-8deg)}

/* Hero */
.inv-hero{
  position:relative;min-height:100vh;min-height:100svh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:72px 24px 48px;overflow:hidden;
  background:var(--hero-bg,var(--bg));
}
.inv-hero.has-photo{
  color:#fff;
  background:#1a1510 center/cover no-repeat;
}
.inv-hero.has-photo::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,8,6,.35),rgba(10,8,6,.55) 45%,rgba(10,8,6,.78));
}
.inv-hero > *{position:relative;z-index:1}
.inv-kicker{
  font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;
  opacity:.78;margin-bottom:18px;
}
.orn{
  display:flex;align-items:center;justify-content:center;gap:12px;
  color:var(--accent,#b8956c);margin:14px 0 18px;
}
.orn span{width:42px;height:1px;background:linear-gradient(90deg,transparent,currentColor,transparent)}
.inv-names{
  font-family:var(--script);font-size:clamp(2.6rem,11vw,3.6rem);
  line-height:1.12;font-weight:400;
}
.inv-names .amp{
  display:block;font-family:var(--serif);font-style:italic;
  font-size:1.05rem;letter-spacing:.2em;margin:6px 0;opacity:.85;
  color:var(--accent,#b8956c);
}
.inv-date{
  font-family:var(--serif);letter-spacing:.2em;font-size:1.05rem;margin-top:8px;
}
.inv-place{margin-top:10px;font-size:.92rem;opacity:.8}
.countdown{
  display:grid;grid-template-columns:repeat(4,1fr);gap:10px;
  margin-top:28px;width:min(100%,320px);
}
.countdown div{
  padding:12px 6px;border-radius:12px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(6px);
}
.inv-hero:not(.has-photo) .countdown div{
  background:rgba(0,0,0,.03);border-color:rgba(0,0,0,.06);
}
.countdown b{display:block;font-family:var(--serif);font-size:1.35rem;font-weight:500}
.countdown span{font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;opacity:.7}

/* Sections */
.inv-sec{
  padding:64px 24px;text-align:center;position:relative;
}
.inv-sec.alt{background:var(--alt,rgba(0,0,0,.03))}
.inv-sec h2{
  font-family:var(--serif);font-weight:500;font-size:clamp(1.6rem,5vw,2rem);
  margin-bottom:8px;
}
.inv-sec .lead{
  max-width:34ch;margin:0 auto 22px;color:var(--muted,#6e6258);font-size:.95rem;
}
.story-photo{
  width:min(78%,300px);aspect-ratio:3/4;margin:0 auto 22px;border-radius:4px;overflow:hidden;
  box-shadow:0 24px 50px rgba(0,0,0,.18);
}
.story-photo img{width:100%;height:100%;object-fit:cover}
.album{
  display:grid;grid-template-columns:1.2fr 1fr;grid-template-rows:1fr 1fr;gap:10px;
  max-width:400px;margin:0 auto;
}
.album figure{overflow:hidden;border-radius:6px;margin:0}
.album figure:first-child{grid-row:1/3}
.album img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/4;transition:transform .8s var(--ease)}
.album figure:hover img{transform:scale(1.05)}

.timeline{max-width:360px;margin:24px auto 0;text-align:left;position:relative}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,transparent,var(--accent,#b8956c),transparent);
}
.timeline li{list-style:none;display:grid;grid-template-columns:24px 1fr;gap:14px;margin-bottom:22px}
.timeline .dot{
  width:10px;height:10px;border-radius:50%;margin-top:7px;margin-left:6px;
  background:var(--accent,#b8956c);box-shadow:0 0 0 4px color-mix(in srgb, var(--accent,#b8956c) 18%, transparent);
}
.timeline time{font-family:var(--serif);color:var(--accent,#b8956c);font-size:.95rem}
.timeline strong{display:block;font-family:var(--serif);font-weight:500;font-size:1.1rem;margin:2px 0}
.timeline span{font-size:.88rem;color:var(--muted,#6e6258)}

.family{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:400px;margin:22px auto 0;text-align:center;
}
.family article{
  padding:20px 14px;border-radius:14px;background:var(--card,#fffaf3);
  border:1px solid color-mix(in srgb, var(--accent,#b8956c) 25%, transparent);
}
.family h3{font-family:var(--serif);font-weight:500;font-size:1.05rem;margin-bottom:8px;color:var(--accent,#b8956c)}
.family p{font-size:.88rem;color:var(--muted,#6e6258)}

.map-card{
  max-width:400px;margin:18px auto 0;border-radius:16px;overflow:hidden;
  border:1px solid color-mix(in srgb, var(--accent,#b8956c) 22%, transparent);
  background:var(--card,#fffaf3);
}
.map-card .map-img{aspect-ratio:16/10;background:
  linear-gradient(135deg,rgba(184,149,108,.15),rgba(0,0,0,.04)),
  url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cpath d='M0 20h40M20 0v40' stroke='%23b8956c22'/%3E%3C/svg%3E");
  display:grid;place-items:center;color:var(--accent,#b8956c);font-family:var(--serif);
}
.map-card .map-body{padding:16px 18px 18px;text-align:left}
.map-card .map-body strong{font-family:var(--serif);font-weight:500;font-size:1.05rem}
.map-card .map-body p{font-size:.88rem;color:var(--muted,#6e6258);margin:4px 0 12px}
.map-btn{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;
  background:var(--accent,#b8956c);color:#fff;text-decoration:none;font-size:.85rem;
}

.rsvp-box,.wish-box{
  max-width:380px;margin:18px auto 0;text-align:left;
  padding:22px;border-radius:18px;background:var(--card,#fffaf3);
  border:1px solid color-mix(in srgb, var(--accent,#b8956c) 22%, transparent);
  box-shadow:0 18px 40px rgba(0,0,0,.05);
}
.rsvp-box label,.wish-box label{display:block;font-size:.78rem;letter-spacing:.06em;margin:12px 0 6px;opacity:.75}
.rsvp-box input,.rsvp-box select,.rsvp-box textarea,
.wish-box input,.wish-box textarea{
  width:100%;padding:12px 14px;border-radius:10px;
  border:1px solid color-mix(in srgb, var(--accent,#b8956c) 28%, transparent);
  background:rgba(255,255,255,.7);color:var(--ink,#2a241c);
}
.rsvp-box textarea,.wish-box textarea{min-height:88px;resize:vertical}
.rsvp-actions{display:flex;gap:10px;margin-top:8px}
.rsvp-actions button{
  flex:1;padding:12px;border-radius:999px;border:1px solid var(--accent,#b8956c);
  background:transparent;cursor:pointer;color:var(--ink,#2a241c);
}
.rsvp-actions button.active,.primary-btn{
  background:linear-gradient(135deg,color-mix(in srgb,var(--accent,#b8956c) 80%,#000),var(--accent,#b8956c));
  color:#fff;border-color:transparent;
}
.primary-btn{
  display:inline-flex;justify-content:center;width:100%;margin-top:14px;
  padding:13px 18px;border-radius:999px;border:0;cursor:pointer;font-weight:500;
}
.wish-list{max-width:380px;margin:18px auto 0;text-align:left}
.wish-item{
  padding:14px 16px;margin-bottom:10px;border-radius:12px;
  background:rgba(255,255,255,.45);border:1px solid rgba(0,0,0,.04);
}
.wish-item strong{font-family:var(--serif);font-weight:500}
.wish-item p{font-size:.9rem;color:var(--muted,#6e6258);margin-top:4px}

.inv-footer{
  padding:48px 24px 72px;text-align:center;
  font-family:var(--serif);font-size:1.15rem;
}
.inv-footer .brand{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;opacity:.55;margin-top:18px}
.inv-footer a{color:var(--accent,#b8956c);text-decoration:none}

/* Reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* Theme: ivory-gold */
.theme-ivory{--bg:#f7f1e8;--ink:#2c241c;--accent:#b08968;--muted:#7a6e62;--card:#fffcf7;--alt:#f1e8dc;--grain:.035;--cover-bg:linear-gradient(160deg,#2a2218,#5a4632);--hero-bg:radial-gradient(ellipse at 50% 20%,#fff9f0,#f0e6d8)}
.theme-cine{--bg:#0e0d0c;--ink:#f4efe8;--accent:#d4b48c;--muted:#a89b8c;--card:#1a1816;--alt:#141210;--grain:.06;--cover-bg:linear-gradient(160deg,#050403,#1c1610)}
.theme-zen{--bg:#f4f6f2;--ink:#2a3228;--accent:#7d8f72;--muted:#6b7568;--card:#ffffff;--alt:#eef1ea;--grain:.03;--cover-bg:linear-gradient(160deg,#2a3328,#4a5844);--hero-bg:linear-gradient(180deg,#f8faf6,#e8eee4)}
.theme-minimal{--bg:#fafafa;--ink:#1a1a1a;--accent:#8a7a68;--muted:#6b6b6b;--card:#fff;--alt:#f3f3f3;--grain:.02;--cover-bg:linear-gradient(160deg,#111,#333);--hero-bg:#fff}
.theme-velvet{--bg:#1a0c12;--ink:#f8efe8;--accent:#e0a8b0;--muted:#c4a8ae;--card:#241018;--alt:#140910;--grain:.07;--cover-bg:linear-gradient(160deg,#0a0508,#3a1520)}

.theme-cine .inv-hero.has-photo::after,
.theme-velvet .inv-hero.has-photo::after{
  background:linear-gradient(180deg,rgba(0,0,0,.25),rgba(0,0,0,.7));
}
.theme-minimal .inv-names{font-family:var(--serif);font-weight:400;letter-spacing:.02em}
.theme-minimal .orn{color:#bbb}
.theme-zen .story-photo{border-radius:999px;width:min(70%,260px);aspect-ratio:1}

@media (max-width:420px){
  .inv-sec{padding:52px 18px}
  .family{grid-template-columns:1fr}
}


/* —— Gift / mừng cưới —— */
.gift-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;
  max-width:400px;margin:22px auto 0;
}
.gift-card{
  padding:18px 14px;border-radius:16px;text-align:center;
  background:var(--card,#fffcf7);
  border:1px solid color-mix(in srgb, var(--accent,#b8956c) 28%, transparent);
}
.gift-card h3{font-family:var(--serif);font-weight:500;font-size:1rem;margin-bottom:8px;color:var(--accent,#b8956c)}
.gift-card p{font-size:.85rem;color:var(--muted,#6e6258);line-height:1.55}
.gift-card strong{color:var(--ink,#2a241c);letter-spacing:.04em}
.ghost-btn{
  margin-top:12px;padding:9px 14px;border-radius:999px;cursor:pointer;
  background:transparent;border:1px solid var(--accent,#b8956c);
  color:var(--ink,#2a241c);font-size:.8rem;
}
.ghost-btn:hover{background:color-mix(in srgb, var(--accent,#b8956c) 14%, transparent)}

/* —— Extra themes (10) —— */
.theme-tradred{
  --bg:#6b0f1a;--ink:#fff6e8;--accent:#e8c27a;--muted:#e8d2b0;
  --card:#7a1824;--alt:#5a0c14;--grain:.05;
  --cover-bg:linear-gradient(160deg,#3a080e,#8a1a28);
  --hero-bg:radial-gradient(ellipse at 50% 0%,#8a2030,#5a0c14);
}
.theme-botanical{
  --bg:#eef4ec;--ink:#1f2e1c;--accent:#5f7a52;--muted:#5a6a54;
  --card:#f7faf5;--alt:#e2ebe0;--grain:.03;
  --cover-bg:linear-gradient(160deg,#243022,#4a5e42);
  --hero-bg:linear-gradient(180deg,#f5f9f3,#e4eee0);
}
.theme-marble{
  --bg:#f5f3f0;--ink:#2a2826;--accent:#8c857a;--muted:#6e6860;
  --card:#fffcf9;--alt:#ebe7e2;--grain:.025;
  --cover-bg:linear-gradient(160deg,#2a2826,#5a544c);
  --hero-bg:radial-gradient(ellipse at 50% 10%,#fff,#ebe6e0);
}
.theme-watercolor{
  --bg:#fbf6f8;--ink:#3a2a32;--accent:#c48aa0;--muted:#7a6570;
  --card:#fffafc;--alt:#f3e8ee;--grain:.03;
  --cover-bg:linear-gradient(160deg,#3a2430,#7a4a5c);
  --hero-bg:radial-gradient(ellipse at 40% 0%,#fff0f5,#f3e4ec);
}
.theme-lavender{
  --bg:#f4f0f8;--ink:#2c2438;--accent:#8b74a8;--muted:#6e6280;
  --card:#fbf8ff;--alt:#ebe4f2;--grain:.03;
  --cover-bg:linear-gradient(160deg,#2a2038,#5a4870);
  --hero-bg:radial-gradient(ellipse at 50% 0%,#f8f4ff,#e8e0f2);
}
.theme-navy{
  --bg:#0d1524;--ink:#f3e9d7;--accent:#c9a45c;--muted:#b8a888;
  --card:#152036;--alt:#0a101c;--grain:.06;
  --cover-bg:linear-gradient(160deg,#060a12,#1a2840);
}
.theme-kraft{
  --bg:#efe4d4;--ink:#3a2a1c;--accent:#8a6340;--muted:#6e5848;
  --card:#f7efe4;--alt:#e4d6c2;--grain:.05;
  --cover-bg:linear-gradient(160deg,#3a2a1c,#6a4a30);
  --hero-bg:radial-gradient(ellipse at 50% 20%,#f7efe2,#e4d4be);
}
.theme-glass{
  --bg:#eef2f6;--ink:#1a2330;--accent:#5a7a9a;--muted:#5a6878;
  --card:rgba(255,255,255,.72);--alt:#e2e8f0;--grain:.02;
  --cover-bg:linear-gradient(160deg,#1a2330,#3a5068);
  --hero-bg:linear-gradient(180deg,#f5f8fb,#e4ebf2);
}
.theme-peach{
  --bg:#fbf3ee;--ink:#3a2a24;--accent:#d49a82;--muted:#7a655c;
  --card:#fff8f4;--alt:#f3e6de;--grain:.03;
  --cover-bg:linear-gradient(160deg,#3a2a24,#7a5040);
  --hero-bg:radial-gradient(ellipse at 50% 0%,#fff6f0,#f0e2d8);
}
.theme-ink{
  --bg:#12141a;--ink:#f2ebe0;--accent:#c9b8a0;--muted:#a89888;
  --card:#1a1c24;--alt:#0c0e14;--grain:.07;
  --cover-bg:linear-gradient(160deg,#08090c,#242830);
}

.theme-tradred .envelope-seal{background:radial-gradient(circle at 35% 30%,#f0d090,#a87830);color:#5a1808}
.theme-navy .envelope-seal,.theme-ink .envelope-seal,.theme-cine .envelope-seal,.theme-velvet .envelope-seal{
  background:radial-gradient(circle at 35% 30%,#e8d0a0,#8a6840);color:#2a1a08
}
.theme-tradred .inv-hero,.theme-navy .inv-hero,.theme-ink .inv-hero{
  background:var(--hero-bg,var(--bg));
}
.theme-glass .rsvp-box,.theme-glass .wish-box,.theme-glass .gift-card,.theme-glass .map-card,.theme-glass .family article{
  backdrop-filter:blur(12px);background:rgba(255,255,255,.55);
}
.theme-watercolor .inv-hero{background:
  radial-gradient(ellipse at 20% 10%,rgba(196,138,160,.18),transparent 50%),
  radial-gradient(ellipse at 80% 90%,rgba(180,160,200,.14),transparent 45%),
  var(--hero-bg,var(--bg));
}
.theme-kraft .invite{background-image:
  url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}
.theme-ink .inv-names{font-family:var(--script);letter-spacing:.02em}
.theme-marble .orn{opacity:.55}
.theme-botanical .floral{color:var(--accent);opacity:.55}

@media (max-width:420px){
  .gift-grid{grid-template-columns:1fr}
}

/* Readable chips on dark themes */
.theme-cine .inv-chip,.theme-velvet .inv-chip,.theme-navy .inv-chip,.theme-ink .inv-chip,.theme-tradred .inv-chip{
  background:rgba(20,16,14,.72);color:var(--ink);border-color:rgba(255,255,255,.12);
}
.theme-cine .music-btn,.theme-velvet .music-btn,.theme-navy .music-btn,.theme-ink .music-btn,.theme-tradred .music-btn{
  background:rgba(20,16,14,.72);color:var(--accent);
}
.theme-tradred .wish-item,.theme-cine .wish-item,.theme-velvet .wish-item,.theme-navy .wish-item,.theme-ink .wish-item{
  background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.08);
}