:root {
  --fs-bg-01: #f6f7f9;
  --fs-surface: #ffffff;
  --fs-surface-60: rgba(255, 255, 255, 0.6);
  --fs-surface-40: rgba(255, 255, 255, 0.4);
  --fs-surface-20: rgba(255, 255, 255, 0.2);
  --fs-text-strong: #121417;
  --fs-text: rgba(18, 20, 23, 0.8);
  --fs-text-muted: rgba(18, 20, 23, 0.6);
  --fs-text-soft: rgba(18, 20, 23, 0.4);
  --fs-line-strong: rgba(18, 20, 23, 0.12);
  --fs-line: rgba(18, 20, 23, 0.06);
  --fs-line-soft: rgba(18, 20, 23, 0.04);
  --fs-brand: #9bcf6c;
  --fs-brand-soft: rgba(155, 207, 108, 0.12);
  --fs-green-soft: rgba(80, 170, 110, 0.24);
  --fs-red: #ff5d5d;
  --fs-red-soft: rgba(255, 93, 93, 0.12);
  --fs-orange: #ff9f43;
  --fs-orange-soft: rgba(255, 159, 67, 0.12);
  --fs-blue: #5b8def;
  --fs-blue-soft: rgba(91, 141, 239, 0.12);
  --fs-yellow: #f5c451;
  --fs-purple: #8f6df6;
  --fs-purple-soft: rgba(143, 109, 246, 0.12);
  --fs-radius-sm: 10px;
  --fs-radius-md: 12px;
  --fs-radius-lg: 16px;
  --fs-radius-xl: 20px;
  --fs-radius-pill: 999px;
  --fs-shadow-card: 0 10px 30px rgba(18, 20, 23, 0.06);
  --fs-shadow-float: 0 20px 48px rgba(18, 20, 23, 0.1);
  --fs-blur-40: blur(40px);
  --fs-sidebar-width: 220px;
}

html,
body {
  background: var(--fs-bg-01);
  color: var(--fs-text-strong);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.fs-app-shell {
  background: var(--fs-bg-01);
  color: var(--fs-text-strong);
}

.fs-surface {
  background: var(--fs-surface);
  border: 1px solid var(--fs-line);
  box-shadow: var(--fs-shadow-card);
}

.fs-float {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--fs-line);
  box-shadow: var(--fs-shadow-float);
  backdrop-filter: var(--fs-blur-40);
}

.fs-card {
  border-radius: var(--fs-radius-lg);
}

.fs-modal {
  border-radius: var(--fs-radius-xl);
}

.fs-chip {
  min-height: 32px;
  padding: 0 12px;
  border-radius: var(--fs-radius-pill);
  background: var(--fs-surface);
  border: 1px solid var(--fs-line);
  color: var(--fs-text);
}

.fs-btn-primary {
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: var(--fs-radius-md);
  background: var(--fs-brand);
  color: var(--fs-text-strong);
  box-shadow: none;
}

.fs-btn-secondary {
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--fs-radius-md);
  border: 1px solid var(--fs-line-strong);
  background: var(--fs-surface);
  color: var(--fs-text);
}

.fs-input {
  min-height: 42px;
  padding: 0 14px;
  border-radius: var(--fs-radius-md);
  border: 1px solid var(--fs-line);
  background: var(--fs-surface);
  color: var(--fs-text-strong);
}

.fs-title-lg {
  font-size: 24px;
  line-height: 32px;
  font-weight: 700;
}

.fs-title-md {
  font-size: 18px;
  line-height: 26px;
  font-weight: 600;
}

.fs-title-sm {
  font-size: 16px;
  line-height: 24px;
  font-weight: 600;
}

.fs-body {
  font-size: 14px;
  line-height: 22px;
  color: var(--fs-text);
}

.fs-caption {
  font-size: 12px;
  line-height: 18px;
  color: var(--fs-text-muted);
}

.sidebar-nav .create-task-link {
  margin-bottom: 8px;
  color: #ffffff;
  background:
    linear-gradient(135deg, #15181d 0%, #202823 52%, #415433 100%);
  border-color: rgba(18, 20, 23, 0.18);
  box-shadow:
    0 18px 34px rgba(18, 20, 23, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.sidebar-nav .create-task-link svg {
  width: 23px;
  height: 23px;
}

.sidebar-nav .create-task-link:hover {
  color: #ffffff;
  background:
    linear-gradient(135deg, #101216 0%, #263126 48%, #8bbf5f 100%);
}

.sidebar-nav .create-task-link.active {
  color: #ffffff;
  background:
    linear-gradient(135deg, #111318 0%, #273126 45%, #9bcf6c 100%);
  border-color: rgba(155, 207, 108, 0.48);
}