/* 设计令牌 — 默认暗色主题 */
:root {
  --bg:      #0a0a0a;
  --surface: #1a1a1a;
  --fg:      #e4e2df;
  --muted:   #888888;
  --border:  #222222;
  --accent:  #4f8af5;

  --accent-soft: color-mix(in oklch, var(--accent) 15%, transparent);
  --fg-soft:     color-mix(in oklch, var(--fg) 8%, transparent);

  --success:       #22c55e;
  --success-soft:  color-mix(in oklch, var(--success) 12%, transparent);
  --warn:          #f59e0b;
  --warn-soft:     color-mix(in oklch, var(--warn) 12%, transparent);
  --danger:        #ef4444;
  --danger-soft:   color-mix(in oklch, var(--danger) 12%, transparent);

  --tag-new: #4f8af5;
  --tag-new-bg: #162240;
  --tag-progress: #f59e0b;
  --tag-progress-bg: #2d2110;
  --tag-closed: #22c55e;
  --tag-closed-bg: #142a1a;
  --tag-severe: #ef4444;
  --tag-severe-bg: #2d1414;
  --tag-important: #f59e0b;
  --tag-important-bg: #2d2110;

  --font-display: "Inter", -apple-system, system-ui, sans-serif;
  --font-body:    "Inter", -apple-system, system-ui, sans-serif;
  --font-mono:    ui-monospace, "JetBrains Mono", monospace;

  --fs-xs: 12px; --fs-sm: 14px; --fs-base: 16px;
  --fs-lg: 20px; --fs-xl: 24px; --fs-2xl: 32px; --fs-3xl: 48px;

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-10: 40px;
  --space-12: 48px; --space-16: 64px; --space-20: 80px;

  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 16px; --radius-pill: 9999px;

  --container-max: 1200px;
  --container-gutter: 24px;
}

/* 亮色主题 */
[data-theme="light"] {
  --bg:      #FAFAFA;
  --surface: #FFFFFF;
  --fg:      #111111;
  --muted:   #6B6B6B;
  --border:  #E5E5E5;
  --accent:  #1E3A5F;

  --accent-soft: color-mix(in oklch, var(--accent) 10%, transparent);
  --fg-soft:     color-mix(in oklch, var(--fg) 5%, transparent);

  --success:       #17A34A;
  --success-soft:  color-mix(in oklch, var(--success) 10%, transparent);
  --warn:          #EAB308;
  --warn-soft:     color-mix(in oklch, var(--warn) 10%, transparent);
  --danger:        #DC2626;
  --danger-soft:   color-mix(in oklch, var(--danger) 10%, transparent);

  --tag-new: #2563eb;
  --tag-new-bg: #eff4ff;
  --tag-progress: #d97706;
  --tag-progress-bg: #fef9ee;
  --tag-closed: #16a34a;
  --tag-closed-bg: #f0fdf4;
  --tag-severe: #dc2626;
  --tag-severe-bg: #fef2f2;
  --tag-important: #b45309;
  --tag-important-bg: #fef9ee;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
p { margin: 0; text-wrap: pretty; }
h1, h2, h3, h4 { margin: 0; text-wrap: balance; font-family: var(--font-display); }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-gutter);
  width: 100%;
}

/* 共享组件 */

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
  font-size: var(--fs-sm); font-weight: 500;
  transition: border-color .15s;
}
.btn:hover { border-color: var(--fg); }
.btn-primary { background: var(--accent); color: var(--surface); border-color: var(--accent); }
.btn-primary:hover { opacity: .9; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--fg); }
.btn-sm { padding: 6px 12px; font-size: 13px; }

.status-dot {
  width: 8px; height: 8px; border-radius: 50%; display: inline-block; flex-shrink: 0;
}
.status-dot.open { background: var(--warn); }
.status-dot.closed { background: var(--success); }
.status-dot.active { background: var(--accent); }

.tag {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: var(--radius-pill);
  font-size: 11px; font-family: var(--font-mono);
  letter-spacing: .02em; white-space: nowrap;
}
.tag-new     { background: var(--tag-new-bg); color: var(--tag-new); }
.tag-progress{ background: var(--tag-progress-bg); color: var(--tag-progress); }
.tag-closed  { background: var(--tag-closed-bg); color: var(--tag-closed); }
.tag-severe  { background: var(--tag-severe-bg); color: var(--tag-severe); }
.tag-normal  { background: var(--tag-new-bg); color: var(--tag-new); }
.tag-important{ background: var(--tag-important-bg); color: var(--tag-important); }

/* Mini chart bars */
.mini-chart { margin-top: var(--space-4); }
.mini-chart canvas { width: 100% !important; height: 100% !important; cursor: pointer; }

/* Top nav */
.topnav {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in oklch, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.topnav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px; padding: 0 var(--container-gutter);
  max-width: var(--container-max); margin-inline: auto;
}
.brand {
  font-family: var(--font-display); font-size: 18px; font-weight: 600;
  letter-spacing: -0.01em; display: flex; align-items: center; gap: var(--space-2);
}
.brand span { color: var(--accent); }

.pagefoot {
  padding: var(--space-6) 0; border-top: 1px solid var(--border);
  color: var(--muted); font-size: var(--fs-xs);
}
.pagefoot-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--container-max); margin-inline: auto;
  padding-inline: var(--container-gutter);
}

/* 滚动条 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }
::-webkit-scrollbar-corner { background: transparent; }