/* ==========================================================================
   components.css — 按钮、卡片、徽章、表单、标签、进度条、提示等通用组件
   ========================================================================== */

/* ---------- 卡片（白纸） ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card-pad { padding: 22px 24px; }

.card-title {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

/* 标题前的竖线，像批注线 */
.card-title .dot {
  width: 3px;
  height: 15px;
  border-radius: 2px;
  background: var(--primary);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 18px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 550;
  font-family: inherit;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s,
    box-shadow 0.15s, transform 0.1s;
  user-select: none;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}

.btn:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
  box-shadow: var(--shadow);
}

.btn:active:not(:disabled) { transform: translateY(1px) scale(0.99); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }

.btn-primary {
  background: linear-gradient(180deg, var(--primary-hi), var(--primary));
  border-color: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 2px 6px -1px color-mix(in srgb, var(--primary) 45%, transparent);
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
  border-color: var(--primary-dark);
  color: var(--on-primary);
  box-shadow: 0 8px 18px -6px color-mix(in srgb, var(--primary) 60%, transparent);
}

.btn-danger {
  background: linear-gradient(180deg, var(--danger), var(--danger-dark));
  border-color: var(--danger);
  color: var(--on-danger);
}
.btn-danger:hover:not(:disabled) {
  background: var(--danger-dark);
  border-color: var(--danger-dark);
  color: var(--on-danger);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
  box-shadow: none;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--surface-2);
  color: var(--text);
  border-color: transparent;
  box-shadow: none;
}

.btn-lg { padding: 13px 28px; font-size: 16px; border-radius: var(--radius); }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-block { width: 100%; }

/* 键盘可见焦点（可访问性） */
.btn:focus-visible,
.chip:focus-visible,
.tab:focus-visible,
.theme-toggle:focus-visible,
.option:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ---------- 徽章 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 550;
  background: var(--surface-2);
  color: var(--muted);
  border: 1px solid var(--border);
}
.badge-primary { background: var(--primary-soft); color: var(--primary-dark); border-color: transparent; }
.badge-success { background: var(--success-soft); color: var(--success); border-color: transparent; }
.badge-danger { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.badge-warning { background: var(--warning-soft); color: var(--warning); border-color: transparent; }

/* ---------- 表单 ---------- */
.field { margin-bottom: 20px; }
.field-label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-soft);
  margin-bottom: 9px;
}
.field-hint { font-size: 12.5px; color: var(--muted); margin-top: 7px; }

.input, .select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input:focus, .select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.input-sm { width: 90px; padding: 7px 10px; }

/* ---------- 可多选 chip ---------- */
.chip-group { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 5px 13px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-soft);
  font-size: 13.5px;
  cursor: pointer;
  transition: color 0.14s, border-color 0.14s, background 0.14s, transform 0.1s;
  user-select: none;
}
.chip:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.chip:active { transform: scale(0.97); }
.chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 2px 6px -2px color-mix(in srgb, var(--primary) 60%, transparent);
}
.chip .chip-count { opacity: 0.7; font-size: 12px; margin-left: 4px; }

/* ---------- 标签页 ---------- */
.tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
}
.tab {
  padding: 9px 16px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 550;
  font-family: inherit;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ---------- 进度条 ---------- */
.progress {
  height: 6px;
  background: var(--track);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-hi));
  border-radius: 999px;
  transition: width 0.3s ease;
}

/* ---------- 统计条 ---------- */
.bar-row { margin-bottom: 12px; }
.bar-head {
  display: flex; justify-content: space-between;
  font-size: 13px; color: var(--text-soft); margin-bottom: 5px;
}
.bar-track { height: 8px; background: var(--track); border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 999px; background: var(--primary); transition: width 0.4s ease; }
.bar-fill.good { background: var(--success); }
.bar-fill.mid { background: var(--warning); }
.bar-fill.bad { background: var(--danger); }

/* ---------- 提示 toast ---------- */
.toast-root {
  position: fixed;
  top: 78px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  pointer-events: none;
}
.toast {
  padding: 11px 20px;
  border-radius: var(--radius);
  background: var(--toast-bg);
  color: var(--toast-text);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toast-in 0.24s ease;
  max-width: 80vw;
}
.toast.success { background: var(--success); color: var(--on-success); }
.toast.error { background: var(--danger); color: var(--on-danger); }
.toast.warning { background: var(--warning); color: var(--on-primary); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 空状态 / 加载 ---------- */
.empty {
  position: relative;
  text-align: center;
  padding: 58px 20px;
  color: var(--muted);
}
.empty .empty-icon {
  display: inline-block;
  font-size: 40px;
  line-height: 1;
  padding: 24px 30px;
  border-radius: 999px;
  /* 光晕直接作为背景，文字内容自然盖在它上面 */
  background: radial-gradient(closest-side, var(--primary-soft), transparent 72%);
  margin-bottom: 6px;
}

.spinner {
  width: 34px; height: 34px;
  border: 3px solid var(--track);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 40px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-mask {
  position: fixed; inset: 0; z-index: 300;
  background: var(--mask);
  display: grid; place-items: center;
  backdrop-filter: blur(2px);
}

/* 尊重系统「减少动效」偏好 */
@media (prefers-reduced-motion: reduce) {
  .outlet > * { animation: none; }
  .toast { animation: none; }
}