/* ============================================================
   Subtitles AI - base
   设计令牌、重置、排版、共享原子组件（按钮 / 输入 / 分段 / 徽章 / toast）
   单一信号蓝强调色；冷灰浅色 / 石墨深色；边框优先、阴影克制。
   ============================================================ */

:root {
  /* 中性层级（冷灰，非纯白） */
  --bg: #eceef2;
  --surface: #fafbfc;
  --surface-2: #f1f3f6;
  --surface-3: #e7eaef;
  --border: #dde1e8;
  --border-2: #ccd2db;
  --text: #1a1d24;
  --text-2: #59616e;
  --text-3: #8990a0;

  /* 单一强调色：信号蓝 */
  --accent: #2e6bff;
  --accent-press: #2356d6;
  --accent-soft: #e6edff;
  --accent-text: #1c47b0;

  /* 克制的状态色 */
  --ok: #2e9e68;
  --ok-soft: #e4f3ea;
  --ok-text: #1e6f49;
  --danger: #d6534c;
  --danger-soft: #fae9e8;
  --danger-text: #9c322d;
  --amber: #c2841d;
  --amber-soft: #f7efd9;
  --amber-text: #8a5d12;

  /* 圆角体系（面板 18 / 行 14 / 输入 14 / 按钮 12 / 控件 10 / 胶囊 999） */
  --r-panel: 18px;
  --r-row: 14px;
  --r-input: 14px;
  --r-btn: 12px;
  --r-control: 10px;
  --r-pill: 999px;

  /* 极轻阴影；主要靠边框与层级背景 */
  --shadow-1: 0 1px 2px rgba(20, 22, 28, 0.05);
  --shadow-2: 0 10px 34px rgba(20, 22, 28, 0.1);
  --sheen: inset 0 1px 0 rgba(255, 255, 255, 0.5);

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", ui-monospace, "JetBrains Mono", "Roboto Mono", Menlo, monospace;

  --sidebar-w: 224px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur: 0.22s;
}

:root[data-theme="dark"] {
  --bg: #101216;
  --surface: #181b20;
  --surface-2: #1e222a;
  --surface-3: #272c35;
  --border: #2a2f39;
  --border-2: #39414d;
  --text: #e8eaef;
  --text-2: #9fa6b3;
  --text-3: #6d7583;

  --accent: #4c86ff;
  --accent-press: #3b6fe6;
  --accent-soft: #17223c;
  --accent-text: #b2c8ff;

  --ok: #45b27d;
  --ok-soft: #14241b;
  --ok-text: #74d3a4;
  --danger: #e0655e;
  --danger-soft: #2a1917;
  --danger-text: #f09a94;
  --amber: #d59a40;
  --amber-soft: #261d0f;
  --amber-text: #e8b76a;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-2: 0 14px 44px rgba(0, 0, 0, 0.5);
  --sheen: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --bg: #101216; --surface: #181b20; --surface-2: #1e222a; --surface-3: #272c35;
    --border: #2a2f39; --border-2: #39414d;
    --text: #e8eaef; --text-2: #9fa6b3; --text-3: #6d7583;
    --accent: #4c86ff; --accent-press: #3b6fe6; --accent-soft: #17223c; --accent-text: #b2c8ff;
    --ok: #45b27d; --ok-soft: #14241b; --ok-text: #74d3a4;
    --danger: #e0655e; --danger-soft: #2a1917; --danger-text: #f09a94;
    --amber: #d59a40; --amber-soft: #261d0f; --amber-text: #e8b76a;
    --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4); --shadow-2: 0 14px 44px rgba(0, 0, 0, 0.5);
    --sheen: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: clamp(14px, 2.5vw, 28px);
  background: #050505;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
.container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      ellipse at 20% 30%,
      rgba(138, 43, 226, 0.8) 0%,
      rgba(138, 43, 226, 0) 60%
    ),
    radial-gradient(
      ellipse at 80% 50%,
      rgba(0, 191, 255, 0.7) 0%,
      rgba(0, 191, 255, 0) 70%
    ),
    radial-gradient(
      ellipse at 50% 80%,
      rgba(50, 205, 50, 0.6) 0%,
      rgba(50, 205, 50, 0) 65%
    ),
    linear-gradient(135deg, #000000 0%, #0a0520 100%);
  background-blend-mode: overlay, screen, hard-light;
  overflow: hidden;
  animation: aurora-drift 25s infinite alternate ease-in-out;
}

.container::before {
  content: "";
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background: repeating-linear-gradient(
      45deg,
      rgba(255, 255, 255, 0.02) 0px,
      rgba(255, 255, 255, 0.02) 1px,
      transparent 1px,
      transparent 40px
    ),
    repeating-linear-gradient(
      -45deg,
      rgba(255, 255, 255, 0.03) 0px,
      rgba(255, 255, 255, 0.03) 1px,
      transparent 1px,
      transparent 60px
    );
  animation: grid-shift 20s linear infinite;
}

.container::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at center,
    transparent 70%,
    rgba(10, 5, 32, 0.9) 100%
  );
  animation: aurora-pulse 8s infinite alternate;
}

@keyframes aurora-drift {
  0% {
    background-position:
      0% 0%,
      0% 0%,
      0% 0%;
    filter: hue-rotate(0deg) brightness(1);
  }
  50% {
    background-position:
      -10% -5%,
      5% 10%,
      0% 15%;
    filter: hue-rotate(30deg) brightness(1.2);
  }
  100% {
    background-position:
      5% 10%,
      -10% -5%,
      15% 0%;
    filter: hue-rotate(60deg) brightness(1);
  }
}

@keyframes grid-shift {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(-50%, -50%);
  }
}

@keyframes aurora-pulse {
    0% {
        opacity: 0.8;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.05);
    }
    100% {
        opacity: 0.8;
        transform: scale(1);
    }
}

/* 细腻噪点：固定层，不参与滚动重绘 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }

.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

::selection { background: var(--accent-soft); color: var(--accent-text); }

/* 细滚动条 */
* { scrollbar-width: thin; scrollbar-color: var(--border-2) transparent; }
*::-webkit-scrollbar { width: 9px; height: 9px; }
*::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 999px; border: 2px solid transparent; background-clip: padding-box; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font: inherit; font-size: 13.5px; font-weight: 550;
  line-height: 1; white-space: nowrap;
  border-radius: var(--r-btn); border: 1px solid transparent;
  padding: 0 15px; height: 38px; cursor: pointer;
  transition: background var(--dur), border-color var(--dur), color var(--dur),
    transform 0.06s, box-shadow var(--dur);
}
.btn i { font-size: 16px; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover:not(:disabled) { background: var(--accent-press); }
.btn--ghost { background: var(--surface); border-color: var(--border-2); color: var(--text); }
.btn--ghost:hover:not(:disabled) { background: var(--surface-3); }
.btn--danger { background: var(--danger); color: #fff; border-color: transparent; }
.btn--danger:hover:not(:disabled) { background: var(--danger-text); }
.btn--sm { height: 32px; padding: 0 12px; font-size: 13px; }

/* 图标按钮（工具栏 / 行操作） */
.iconbtn {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px; flex: none;
  border-radius: var(--r-control);
  border: 1px solid transparent; background: transparent;
  color: var(--text-2); font-size: 17px; cursor: pointer;
  transition: background var(--dur), color var(--dur), border-color var(--dur), transform 0.06s;
}
.iconbtn:hover { background: var(--surface-3); color: var(--text); }
.iconbtn:active { transform: translateY(1px); }
.iconbtn--danger:hover { background: var(--danger-soft); color: var(--danger); }
.iconbtn--accent { color: var(--accent); }
.iconbtn--accent:hover { background: var(--accent-soft); color: var(--accent-text); }

/* ---------- 输入 / 选择 ---------- */
.select {
  font: inherit; font-size: 13px; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--r-control); padding: 7px 30px 7px 11px;
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238990a0' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 9px center;
  transition: border-color var(--dur), background var(--dur);
}
.select:hover { border-color: var(--border-2); }
.select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.select--sm { height: 32px; padding: 4px 28px 4px 10px; font-size: 12.5px; }

/* 分段控件 */
.segmented {
  display: inline-flex; gap: 3px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--r-control); padding: 3px;
}
.segmented__opt { position: relative; display: flex; }
.segmented__opt input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.segmented__opt span {
  display: block; font-size: 12.5px; color: var(--text-2);
  padding: 5px 12px; border-radius: 7px; white-space: nowrap;
  transition: background var(--dur), color var(--dur);
}
.segmented__opt input:checked + span {
  background: var(--surface); color: var(--text); font-weight: 550;
  box-shadow: var(--shadow-1);
}
.segmented__opt input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------- 徽章 / 标签 ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; font-weight: 550; padding: 3px 9px;
  border-radius: var(--r-pill); white-space: nowrap;
}
.badge i { font-size: 13px; }
.badge--pending { color: var(--text-2); background: var(--surface-3); }
.badge--active { color: var(--accent-text); background: var(--accent-soft); }
.badge--success { color: var(--ok-text); background: var(--ok-soft); }
.badge--failed { color: var(--danger-text); background: var(--danger-soft); }

.tag {
  font-size: 11.5px; color: var(--text-2);
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 7px; padding: 2px 8px; white-space: nowrap;
}

/* ---------- chips（筛选） ---------- */
.chip {
  font: inherit; font-size: 12.5px; color: var(--text-2);
  background: transparent; border: 1px solid transparent;
  border-radius: var(--r-control); padding: 5px 11px; cursor: pointer;
  transition: background var(--dur), color var(--dur), border-color var(--dur);
}
.chip:hover { background: var(--surface-3); color: var(--text); }
.chip.is-active { background: var(--surface); border-color: var(--border-2); color: var(--text); font-weight: 550; box-shadow: var(--shadow-1); }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 26px; z-index: 80;
  transform: translateX(-50%) translateY(10px);
  display: flex; align-items: center; gap: 8px;
  background: var(--text); color: var(--bg);
  font-size: 13px; padding: 10px 16px; border-radius: var(--r-pill);
  box-shadow: var(--shadow-2); opacity: 0;
  transition: opacity var(--dur), transform var(--dur) var(--ease);
}
.toast.is-show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 侧边栏设置（通知开关等） ---------- */
.settings {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-panel);
  padding: 12px 12px 10px;
  margin: 6px 0 8px;
  box-shadow: var(--shadow-1);
}
.settings__title {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 0 0 8px 2px;
}
.settings__row {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer;
  user-select: none;
  padding: 4px 2px;
  border-radius: var(--r-control);
}
.settings__row:hover { background: var(--surface-2); }
.settings__name {
  flex: 1; min-width: 0;
  font-size: 12.5px;
  color: var(--text);
  line-height: 1.35;
}
.settings__switch {
  position: relative;
  display: inline-block;
  width: 30px; height: 18px;
  flex: none;
}
.settings__switch input {
  position: absolute; inset: 0;
  opacity: 0; cursor: pointer;
  margin: 0;
}
.settings__slider {
  position: absolute; inset: 0;
  background: var(--surface-3);
  border: 1px solid var(--border-2);
  border-radius: 999px;
  transition: background var(--dur), border-color var(--dur);
}
.settings__slider::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 12px; height: 12px;
  background: var(--surface);
  border-radius: 50%;
  box-shadow: var(--shadow-1);
  transition: transform var(--dur) var(--ease);
}
.settings__switch input:checked + .settings__slider {
  background: var(--accent);
  border-color: var(--accent);
}
.settings__switch input:checked + .settings__slider::after {
  transform: translateX(12px);
}
.settings__switch input:focus-visible + .settings__slider {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.settings__hint {
  margin: 6px 2px 0;
  font-size: 11.5px;
  color: var(--text-3);
  line-height: 1.4;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}