/* =========================================================
   CHMcar · Midnight Champagne 尊貴金香檳主題
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600;700&display=swap');

:root{
  /* Deep midnight backgrounds (warmer than pure blue-black) */
  --bg:#0B1322;
  --bg-2:#0E1B2F;
  --card:#14233C;
  --card-2:#1B2E4E;
  --line:rgba(201,169,98,.12);
  --line-strong:rgba(201,169,98,.28);
  --ink:#F5F1E8;           /* ivory white */
  --ink-2:#CFC6B5;         /* warm light */
  --muted:#7C7468;          /* muted champagne */
  /* Champagne Gold — the hero */
  --gold:#C9A962;
  --gold-glow:#D9BC78;
  --gold-deep:#9E8347;
  --gold-soft:rgba(201,169,98,.08);
  /* Status colors */
  --green:#7CA982;
  --red:#C8817A;
  --orange:#D4A876;
  --blue:#6B8DB4;
  /* Legacy aliases (for backward compat,指向金色) */
  --cyan:#C9A962;
  --cyan-glow:#D9BC78;
  --cyan-soft:rgba(201,169,98,.08);
  --purple:#8B5F99;
  --pink:#C8817A;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans TC","Noto Sans SC","Noto Sans JP","Noto Sans KR","Inter",-apple-system,sans-serif;
  color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;line-height:1.7;
  padding-bottom:80px;min-height:100vh;
}
html[lang="zh-Hans"] body{font-family:"Noto Sans SC","Noto Sans TC","Inter",sans-serif}
html[lang="ja"] body{font-family:"Noto Sans JP","Noto Sans TC","Inter",sans-serif}
html[lang="ko"] body{font-family:"Noto Sans KR","Noto Sans TC","Inter",sans-serif}
html[lang="en"] body{font-family:"Inter","Noto Sans TC",sans-serif}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit;color:var(--ink)}

/* Serif font class for luxury headings */
.serif{font-family:'Cormorant Garamond',"Noto Sans TC",serif;font-weight:500;letter-spacing:.02em}

/* ========== Star Background · Subtle Gold Specks ========== */
.star-bg{
  position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;
  background:
    radial-gradient(ellipse 900px 700px at 50% -20%,rgba(201,169,98,.10),transparent 70%),
    radial-gradient(ellipse 600px 400px at 100% 50%,rgba(201,169,98,.05),transparent 70%),
    radial-gradient(ellipse 600px 400px at 0% 100%,rgba(139,95,153,.05),transparent 70%);
}
.star-bg svg{position:absolute;inset:0;width:100%;height:100%;opacity:.35}
body > *:not(.star-bg){position:relative;z-index:1}

/* ========== Nav ========== */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(11,19,34,.85);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid var(--line);
}
.nav-inner{max-width:760px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.back-btn{display:flex;align-items:center;padding:8px 14px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink-2)}
.back-btn:hover{background:var(--card)}
.logo{display:flex;align-items:center;gap:10px;font-family:'Cormorant Garamond','Noto Sans TC',serif;font-weight:600;font-size:22px;color:var(--ink);letter-spacing:.02em}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));
  display:grid;place-items:center;color:var(--bg);font-weight:700;font-size:18px;
  font-family:'Cormorant Garamond',serif;
  box-shadow:0 4px 14px rgba(201,169,98,.35),inset 0 1px 0 rgba(255,255,255,.3);
  border:1px solid rgba(255,255,255,.08);
}

/* ========== Lang Switcher ========== */
.lang-wrap{position:relative}
.lang-btn{
  display:flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:999px;font-size:13px;font-weight:500;
  color:var(--ink-2);border:1px solid var(--line-strong);background:var(--card);
  transition:all .15s;
}
.lang-btn:hover{border-color:var(--gold);color:var(--gold-glow)}
.lang-btn .arrow{font-size:9px;opacity:.6}
.lang-menu{
  position:absolute;top:calc(100% + 8px);right:0;
  background:var(--card-2);border:1px solid var(--line-strong);border-radius:14px;
  box-shadow:0 20px 50px rgba(0,0,0,.7);
  padding:6px;min-width:170px;display:none;z-index:100;
}
.lang-menu.open{display:block}
.lang-menu button{
  display:flex;align-items:center;gap:10px;width:100%;
  padding:10px 14px;border-radius:9px;font-size:14px;
  color:var(--ink-2);text-align:left;font-weight:500;
}
.lang-menu button:hover{background:var(--card)}
.lang-menu button.active{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:var(--bg);font-weight:700}

/* ========== Common Container ========== */
.container{max-width:760px;margin:0 auto;padding:24px 20px}

/* ========== Common Card ========== */
.dark-card{
  background:linear-gradient(180deg,var(--card-2),var(--card));
  border:1px solid var(--line);
  border-radius:16px;padding:22px;margin-bottom:14px;
  transition:border-color .15s;
}
.dark-card:hover{border-color:var(--line-strong)}
.dark-card h2,.dark-card h3{
  font-size:15px;font-weight:700;margin-bottom:14px;color:var(--ink);
  display:flex;align-items:center;gap:8px;
}

/* ========== Buttons ========== */
.btn-gold,.btn-cyan{
  background:linear-gradient(135deg,var(--gold),var(--gold-glow));
  color:var(--bg);font-weight:700;
  box-shadow:0 6px 20px rgba(201,169,98,.35);
}
.btn-gold:hover,.btn-cyan:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(201,169,98,.5)}
.btn-ghost-d{background:var(--card);color:var(--ink-2);border:1.5px solid var(--line-strong)}
.btn-ghost-d:hover{border-color:var(--gold);color:var(--gold-glow)}

/* ========== Dark Input ========== */
.dark-input{
  width:100%;padding:12px 14px;background:var(--bg-2);
  border:1.5px solid var(--line);border-radius:10px;
  font-size:14px;color:var(--ink);outline:none;transition:border-color .15s;
}
.dark-input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,169,98,.1)}
.dark-input::placeholder{color:var(--muted)}

/* ========== Bottom Tab ========== */
.bottom-tab{
  position:fixed;bottom:0;left:0;right:0;z-index:90;
  background:rgba(11,19,34,.92);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border-top:1px solid var(--line-strong);
  padding:8px 0 max(8px,env(safe-area-inset-bottom));
}
.bottom-tab-inner{max-width:600px;margin:0 auto;display:grid;grid-template-columns:repeat(5,1fr);gap:4px}
.tab-item{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:8px 2px;border-radius:10px;
  color:var(--muted);font-size:10px;font-weight:600;
  transition:all .15s;text-decoration:none;
}
.tab-item:hover{color:var(--ink-2)}
.tab-item .ic{font-size:22px;line-height:1}
.tab-item.active{color:var(--gold)}
.tab-item.active .ic{filter:drop-shadow(0 0 8px rgba(201,169,98,.6))}

.hidden{display:none}

/* ========== Animation Library ========== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes zoomIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}
@keyframes glow{
  0%,100%{box-shadow:0 0 12px rgba(201,169,98,.3)}
  50%{box-shadow:0 0 24px rgba(201,169,98,.6)}
}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes twinkle{0%,100%{opacity:.3}50%{opacity:1}}

body{animation:fadeIn .5s ease}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.reveal.show{opacity:1;transform:translateY(0)}
.reveal-zoom{opacity:0;transform:scale(.92);transition:opacity .6s ease,transform .6s ease}
.reveal-zoom.show{opacity:1;transform:scale(1)}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}
.reveal[data-delay="5"]{transition-delay:.40s}
.reveal[data-delay="6"]{transition-delay:.48s}

/* Star twinkle */
.star-bg svg circle{animation:twinkle 4s ease-in-out infinite}
.star-bg svg circle:nth-child(2n){animation-duration:5s;animation-delay:.5s}
.star-bg svg circle:nth-child(3n){animation-duration:6s;animation-delay:1s}
.star-bg svg circle:nth-child(5n){animation-duration:7s;animation-delay:1.5s}

/* Logo hover glow */
.logo:hover .logo-mark{animation:glow 2s ease-in-out infinite}

/* Button shine */
.btn-gold,.btn-cyan,.btn-primary{position:relative;overflow:hidden}
.btn-gold::after,.btn-cyan::after,.btn-primary::after{
  content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);
  transition:left .6s;
}
.btn-gold:hover::after,.btn-cyan:hover::after,.btn-primary:hover::after{left:100%}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .reveal,.reveal-zoom{opacity:1 !important;transform:none !important}
}