/* components.css - 按钮/卡片/翻牌/导航/滚动揭示 */

/* —— 按钮 —— */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-family:var(--font-pixel);
  font-size:11px;                /* Press Start 2P 11px ≈ 常规 13px */
  line-height:1.6;
  letter-spacing:.16em;
  text-transform:uppercase;
  transition:transform var(--t-base),background var(--t-base),color var(--t-base),border-color var(--t-base);
  border:1px solid transparent;
}
.btn-primary{ background:var(--c-ink); color:var(--c-cream); }
.btn-primary:hover{ background:#000; transform:translateY(-2px); }
.btn-ghost{ border-color:var(--c-line); color:var(--c-ink); }
.btn-ghost:hover{ border-color:var(--c-pink); color:var(--c-pink); transform:translateY(-2px); }

/* —— 卡片 —— */
.card{
  background:#fff;
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform var(--t-base),box-shadow var(--t-base);
}
.card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.card-media{ aspect-ratio:4/5; overflow:hidden; background:var(--c-cream); display:flex; align-items:center; justify-content:center; }
.card-media img,.card-media svg{ width:100%; height:100%; object-fit:cover; }
.card-body{ padding:24px; }
.card-title{ font-family:var(--font-pixel); font-size:12px; line-height:1.7; letter-spacing:.08em; margin-bottom:8px; }
.card-meta{ font-family:var(--font-pixel); font-size:9px; line-height:1.6; color:var(--c-gray); letter-spacing:.18em; text-transform:uppercase; }

/* —— 顶部导航 —— */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding-block:18px;
  transition:background var(--t-base),padding var(--t-base),border-color var(--t-base);
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(251,247,243,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  padding-block:12px;
  border-bottom-color:var(--c-line);
}
.nav-inner{
  max-width:var(--container);
  margin:0 auto;
  padding-inline:var(--container-pd);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.nav-logo{ font-family:var(--font-pixel); font-size:12px; line-height:1.6; letter-spacing:.2em; display:inline-flex; align-items:center; gap:10px; }
.nav-logo b{ color:var(--c-pink); font-weight:400; }

/* —— Logo 像素图标 —— */
.logo-icon{
  width:24px;
  height:24px;
  object-fit:contain;
  image-rendering:pixelated;
  image-rendering:-moz-crisp-edges;
  image-rendering:crisp-edges;
  display:inline-block;
}
.logo-icon.sm{
  width:16px;
  height:16px;
  opacity:.85;
  margin-right:2px;
}
.nav-links{ display:flex; gap:32px; }
.nav-links a{
  font-family:var(--font-pixel);
  font-size:10px; line-height:1.6; letter-spacing:.16em; text-transform:uppercase;
  color:var(--c-ink-soft); transition:color var(--t-fast);
}
.nav-links a:hover{ color:var(--c-pink); }
.nav-links a{
  display:inline-block;
  padding:8px 4px;
  min-height:44px;
  line-height:28px;
}
@media (max-width:640px){
  .nav-links{ gap:14px; }
  .nav-links a{ font-family:var(--font-pixel); font-size:8px; letter-spacing:.1em; padding:6px 2px; min-height:auto; line-height:1.4; }
}

/* —— 翻牌计时器 —— */
.timer{
  display:flex;
  align-items:flex-start;
  justify-content:center;
  gap:6px;
  flex-wrap:wrap;
}
.timer-unit{ display:flex; flex-direction:column; align-items:center; gap:10px; min-width:0; }
.timer-row{ display:flex; gap:3px; }
.timer-label{ font-family:var(--font-pixel); font-size:9px; line-height:1.6; letter-spacing:.2em; text-transform:uppercase; color:var(--c-gray); white-space:nowrap; }
.timer-colon{
  align-self:center; height:60px; display:flex; align-items:center;
  color:var(--c-pink); font-size:22px; animation:blink 1.6s infinite;
  margin-top:20px;
}

.flip{
  position:relative;
  width:clamp(28px,7.5vw,56px);
  height:clamp(42px,11vw,84px);
  perspective:300px;
  font-family:var(--font-pixel);
  font-size:clamp(22px,5.5vw,44px);
  line-height:1;
}
.flip .card{
  position:absolute; inset:0;
  transform-style:preserve-3d;
  transition:transform .55s var(--ease-out);
}
.flip .face{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  border-radius:8px;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  background:linear-gradient(180deg,#fff 0%,#FAF6F2 100%);
  border:1px solid var(--c-line);
  box-shadow:0 4px 14px rgba(212,165,165,.12),inset 0 1px 0 rgba(255,255,255,.7);
  color:var(--c-ink);
  overflow:hidden;
}
.flip .face::after{
  content:""; position:absolute; left:0; right:0; top:50%; height:1px;
  background:rgba(212,165,165,.2);
}
.flip .face.back{ transform:rotateX(180deg); background:linear-gradient(180deg,#FAF6F2 0%,#F4E8E0 100%); }
.flip.flipping .card{ transform:rotateX(-180deg); }

/* —— 移动端计时器紧凑模式 —— */
@media (max-width:520px){
  .timer{ gap:4px; }
  .timer-unit{ gap:6px; flex:0 0 auto; }
  .timer-row{ gap:2px; }
  .timer-colon{ height:44px; font-size:18px; margin-top:14px; }
  .flip{
    width:clamp(22px,6.5vw,32px);
    height:clamp(32px,9.5vw,48px);
    font-size:clamp(16px,5vw,26px);
  }
  .flip .face{ border-radius:6px; }
  .timer-label{ font-size:0; position:relative; display:block; height:16px; line-height:16px; }
  .timer-label::after{
    content:'';
    font-family:var(--font-pixel);
    font-size:8px;
    line-height:1.6;
    letter-spacing:.12em;
    text-transform:uppercase;
    color:var(--c-gray);
  }
  /* 各单位在移动端显示短标签 */
  .timer-unit:nth-child(1) .timer-label::after{ content:'D'; }
  .timer-unit:nth-child(3) .timer-label::after{ content:'H'; }
  .timer-unit:nth-child(5) .timer-label::after{ content:'M'; }
  .timer-unit:nth-child(7) .timer-label::after{ content:'S'; }
}

/* —— 导航移动端 —— */
@media (max-width:640px){
  .nav{ padding-block:14px; }
  .nav-logo{ font-size:10px; letter-spacing:.15em; gap:8px; }
  .logo-icon{ width:20px; height:20px; }
}

/* —— 极窄屏导航进一步压缩 —— */
@media (max-width:420px){
  .nav-links{ gap:8px; }
  .nav-links a{ font-family:var(--font-pixel); font-size:7px; letter-spacing:.06em; padding:4px 1px; }
}

/* —— 滚动揭示动画 —— */
.reveal{ opacity:0; transform:translateY(30px); transition:opacity .9s var(--ease-out),transform .9s var(--ease-out); }
.reveal.in{ opacity:1; transform:none; }
.reveal-delay-1{ transition-delay:.1s; }
.reveal-delay-2{ transition-delay:.2s; }
.reveal-delay-3{ transition-delay:.3s; }

/* —— 分隔装饰 —— */
.deco-line{
  display:flex; align-items:center; justify-content:center; gap:14px;
  color:var(--c-champagne);
}
.deco-line::before,.deco-line::after{
  content:""; height:1px; width:40px; background:var(--c-line);
}

/* —— 星空背景 —— */
#starfield{
  position:fixed; inset:0; width:100%; height:100%; z-index:0; pointer-events:none;
}

@keyframes blink{ 0%,100%{opacity:1;} 50%{opacity:.3;} }