/* ============================================================
   液态玻璃材质系统 (Liquid Glass · Light)
   ------------------------------------------------------------
   一块真实的玻璃有四件事要交代：
     1. 透光   backdrop-filter 模糊 + 提饱和，让背后的彩色光晕透进来
     2. 本体   白色半透明渐变填充，模拟玻璃自身的厚度
     3. 边缘   顶亮底暗的 1px 内阴影，模拟边缘的全反射
     4. 镜面   跟随光标移动的高光，这是"液态"感的来源
   亮面版本的关键：边缘上亮下暗要反过来读 —— 上缘是纯白受光，
   下缘是极淡的暖灰投影。阴影必须轻、散、大，否则浅底上会发脏。
   ============================================================ */

.glass {
  position: relative;
  isolation: isolate;
  border-radius: var(--r-lg);
  background:
    linear-gradient(148deg,
      var(--glass-tint-2) 0%,
      var(--glass-tint)  42%,
      rgba(255,255,255,.44) 66%,
      var(--glass-tint-2) 100%);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  box-shadow:
    inset 0  1px 0 var(--glass-edge),          /* 顶边受光 */
    inset 0 -1px 0 var(--glass-edge-dim),      /* 底边背光 */
    inset 0  0 0 1px rgba(255,255,255,.55),    /* 整圈玻璃厚度 */
    0 0 0 1px rgba(22,19,15,.05),              /* 外描边，浅底上才立得住 */
    var(--shadow-2);
}

/* 镜面高光：由 JS 写入 --mx / --my（百分比），纯 CSS 做渐变 */
.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(
    20rem 20rem at var(--mx, 50%) var(--my, -10%),
    var(--glass-spec),
    rgba(255,255,255,.30) 40%,
    transparent 66%);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
}
.glass:hover::before,
.glass:focus-within::before { opacity: 1; }

/* 更厚的玻璃：用于主面板 */
.glass-thick {
  background:
    linear-gradient(148deg,
      var(--glass-tint-3) 0%,
      var(--glass-tint-2) 46%,
      rgba(255,255,255,.66) 70%,
      var(--glass-tint-3) 100%);
  backdrop-filter: blur(var(--glass-blur-lg)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur-lg)) saturate(var(--glass-sat));
  box-shadow:
    inset 0  1px 0 var(--glass-edge),
    inset 0 -1px 0 var(--glass-edge-dim),
    inset 0  0 0 1px rgba(255,255,255,.70),
    0 0 0 1px rgba(22,19,15,.06),
    var(--shadow-3);
}

/* 薄玻璃：列表行、小控件 */
.glass-thin {
  border-radius: var(--r-md);
  background: rgba(255,255,255,.40);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.80),
    0 0 0 1px rgba(22,19,15,.06),
    var(--shadow-1);
}

/* ——— 可交互的玻璃：抬起 + 折射边缘 ——— */
.glass-interactive {
  cursor: pointer;
  transition:
    transform var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
}
.glass-interactive:hover { transform: translateY(-4px); }
.glass-interactive:active { transform: translateY(-1px) scale(.995); }

/* 选中态：边缘泛起一圈墨玉绿折射光 —— 全站的记忆点 */
.glass-interactive[aria-checked='true'],
.glass-interactive.is-active {
  background:
    linear-gradient(148deg, rgba(10,107,82,.10), rgba(255,255,255,.62) 55%, rgba(10,107,82,.06));
  box-shadow:
    inset 0  1px 0 rgba(255,255,255,.90),
    inset 0  0 0 1.5px var(--accent),
    0 0 0 5px var(--accent-haze),
    0 18px 44px rgba(10,107,82,.14),
    var(--shadow-3);
}

/* ============================================================
   按钮
   ============================================================ */
.btn {
  --btn-bg: rgba(255,255,255,.58);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;                 /* ≥44px 触摸目标 */
  padding: 12px 24px;
  border: 0;
  border-radius: var(--r-pill);
  background: var(--btn-bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 600;
  letter-spacing: .01em;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.90),
    0 0 0 1px rgba(22,19,15,.09),
    var(--shadow-1);
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
}
.btn:hover  { transform: translateY(-2px); background: rgba(255,255,255,.82); box-shadow: inset 0 1px 0 rgba(255,255,255,.95), 0 0 0 1px rgba(22,19,15,.11), var(--shadow-2); }
.btn:active { transform: translateY(0) scale(.98); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }

/* 主按钮：实心墨玉绿，全站唯一强调色的落点。
   不用渐变混灰 —— 浅底上任何掺灰的渐变都会显脏。 */
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.28),
    inset 0 -1px 0 rgba(0,0,0,.14),
    0 8px 22px var(--accent-glow);
}
.btn-primary:hover {
  background: #0c7c5e;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.34),
    0 12px 32px var(--accent-glow);
}

/* 悬停时掠过的一道反光 —— 比单纯变亮更有质感 */
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 32%, rgba(255,255,255,.38) 48%, transparent 62%);
  transform: translateX(-120%);
  pointer-events: none;
}
@media (prefers-reduced-motion: no-preference) {
  .btn-primary:hover::after { animation: sheen 760ms var(--ease-out); }
  @keyframes sheen { to { transform: translateX(120%); } }
}

.btn-ghost  { background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none;
              box-shadow: inset 0 0 0 1px rgba(22,19,15,.16); }
.btn-ghost:hover { background: rgba(255,255,255,.60); box-shadow: inset 0 0 0 1px rgba(22,19,15,.22); }
.btn-sm     { min-height: 38px; padding: 8px 16px; font-size: var(--fs-sm); }
.btn-danger { color: var(--danger); background: rgba(179,38,30,.07);
              box-shadow: inset 0 0 0 1px rgba(179,38,30,.26); }
.btn-danger:hover { background: rgba(179,38,30,.13); }
.btn-block  { width: 100%; }

/* ============================================================
   表单控件
   ============================================================ */
.field { display: flex; flex-direction: column; gap: 7px; }
.field > label { font-size: var(--fs-sm); color: var(--text-soft); font-weight: 500; }
.field .hint  { font-size: var(--fs-xs); color: var(--muted); line-height: 1.55; }

.input, .textarea, .select {
  width: 100%;
  min-height: 46px;
  padding: 11px 15px;
  border: 0;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,.62);
  color: var(--text);
  font-size: var(--fs-base);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: inset 0 0 0 1px rgba(22,19,15,.13), inset 0 1px 2px rgba(22,19,15,.06);
  transition: box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.input::placeholder, .textarea::placeholder { color: var(--muted-dim); }
.input:hover, .textarea:hover, .select:hover { background: rgba(255,255,255,.78); }
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  background: #fff;
  box-shadow: inset 0 0 0 1.5px var(--accent), 0 0 0 4px var(--accent-haze);
}
.textarea { min-height: 120px; resize: vertical; line-height: 1.65; font-family: var(--font-body); }
.textarea.code { font-family: var(--font-mono); font-size: var(--fs-sm); line-height: 1.6; }
.select { appearance: none; padding-right: 38px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%236f685e' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; }
.select option { background: var(--surface-2); color: var(--text); }

/* 开关 */
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; min-height: 44px; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch .track {
  width: 46px; height: 27px; border-radius: var(--r-pill); flex: none;
  background: rgba(22,19,15,.14);
  box-shadow: inset 0 0 0 1px rgba(22,19,15,.10), inset 0 1px 3px rgba(22,19,15,.12);
  transition: background var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
  position: relative;
}
.switch .track::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 21px; height: 21px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(22,19,15,.28), 0 2px 8px rgba(22,19,15,.16);
  transition: transform var(--dur-base) var(--ease-spring);
}
.switch input:checked + .track { background: var(--accent); box-shadow: inset 0 0 0 1px var(--accent-deep); }
.switch input:checked + .track::after { transform: translateX(19px); }
.switch input:focus-visible + .track { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ============================================================
   徽章 / 药丸 / 提示条
   ============================================================ */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 11px; border-radius: var(--r-pill);
  font-size: var(--fs-xs); font-weight: 600; letter-spacing: .02em;
  color: var(--text-soft);
  background: rgba(255,255,255,.66);
  box-shadow: inset 0 0 0 1px rgba(22,19,15,.10);
  white-space: nowrap;
}
.badge-accent { background: var(--accent-soft); color: var(--accent); box-shadow: inset 0 0 0 1px rgba(10,107,82,.24); }
.badge-ok     { background: rgba(16,113,74,.10);  color: var(--ok);     box-shadow: inset 0 0 0 1px rgba(16,113,74,.24); }
.badge-warn   { background: rgba(138,90,0,.10);   color: var(--warn);   box-shadow: inset 0 0 0 1px rgba(138,90,0,.24); }
.badge-danger { background: rgba(179,38,30,.09);  color: var(--danger); box-shadow: inset 0 0 0 1px rgba(179,38,30,.24); }
.badge-muted  { color: var(--muted); }

.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
@media (prefers-reduced-motion: no-preference) {
  .dot.live { animation: pulse 2s ease-in-out infinite; }
  @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .3; } }
}

/* 通知条：浅底上反过来用深色，才看得见 */
.toast-host { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 200; display: grid; gap: 10px; }
.toast {
  padding: 13px 22px; border-radius: var(--r-pill);
  font-size: var(--fs-sm); font-weight: 500;
  color: #f7f6f3;
  background: rgba(22,19,15,.88);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.16), var(--shadow-3);
  animation: toastIn 420ms var(--ease-spring);
}
.toast.err { color: #ffb4ab; }
.toast.ok  { color: #7de0b4; }
@keyframes toastIn { from { opacity: 0; transform: translateY(-14px) scale(.94); } }

/* 骨架屏 */
.skeleton {
  border-radius: var(--r-md);
  background: linear-gradient(100deg, rgba(22,19,15,.05) 30%, rgba(22,19,15,.10) 50%, rgba(22,19,15,.05) 70%);
  background-size: 220% 100%;
}
@media (prefers-reduced-motion: no-preference) {
  .skeleton { animation: shimmer 1.5s linear infinite; }
  @keyframes shimmer { to { background-position: -220% 0; } }
}

/* 分隔线：发丝级 */
.hairline { height: 1px; border: 0; margin: 0;
  background: linear-gradient(90deg, transparent, var(--glass-hair) 18%, var(--glass-hair) 82%, transparent); }

/* 空状态 */
.empty { padding: var(--sp-6) var(--sp-4); text-align: center; color: var(--muted); }
.empty strong { display: block; font-family: var(--font-display); font-size: var(--fs-lg); color: var(--text-soft); margin-bottom: 6px; }

/* 加载转圈 */
.spinner {
  width: 17px; height: 17px; flex: none; border-radius: 50%;
  border: 2px solid rgba(22,19,15,.18);
  border-top-color: var(--accent);
  animation: spin .82s linear infinite;
}
.btn-primary .spinner { border-color: rgba(255,255,255,.34); border-top-color: var(--accent-ink); }
@keyframes spin { to { transform: rotate(360deg); } }