/* ===== 按钮系统 ===== */

/* 主要按钮 - 渐变背景 */
.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-spring);
  white-space: nowrap;
  position: relative;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(var(--accent-rgb), 0.38);
}
.btn-primary:active { transform: translateY(0) scale(0.97); }
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), transparent);
  pointer-events: none;
}

/* 次要按钮 */
.btn-secondary {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  color: var(--text);
  border: 1px solid var(--glass-border);
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-gradient-soft);
}
.btn-secondary [data-icon] { width: 16px; height: 16px; }

/* 小按钮 */
.btn-small {
  padding: 6px 14px;
  border: 1px solid var(--border);
  background: var(--glass-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: var(--radius-xs);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.btn-small:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-gradient-soft);
}
.btn-small [data-icon] { width: 13px; height: 13px; }

/* 迷你按钮 */
.btn-tiny {
  padding: 3px 8px;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.btn-tiny:hover { background: var(--accent-light); color: var(--accent); }
.btn-tiny [data-icon] { width: 12px; height: 12px; }

/* ===== 筛选按钮 ===== */
.filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.filters button {
  padding: 5px 14px;
  border: 1.5px solid var(--border);
  background: var(--glass-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-spring);
  color: var(--text-muted);
}
.filters button:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-gradient-soft);
  transform: translateY(-1px);
}
.filters button.active {
  background: var(--accent-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-accent);
}

/* ===== 调色板卡片 ===== */
.card-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition-spring);
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--accent-soft);
}
.card-colors {
  display: flex;
  height: 110px;
  cursor: pointer;
}
.card-colors .swatch {
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 8px 4px;
  font-size: 10px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  user-select: none;
  position: relative;
  transition: all var(--transition-spring);
  text-shadow: 0 1px 3px rgba(0,0,0,.35);
  font-family: var(--font-mono);
  letter-spacing: 0.3px;
}
.card-colors .swatch::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0);
  transition: background var(--transition-fast);
}
.card-colors .swatch:hover { flex: 1.8; font-size: 11px; }
.card-colors .swatch:hover::after {
  background: rgba(255, 255, 255, 0.08);
}

/* 卡片信息 */
.card-info { padding: 14px 16px 8px; }
.card-title {
  font-weight: 650;
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--text);
}
.card-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.tag {
  font-size: 10px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--accent-light);
  color: var(--accent);
  letter-spacing: 0.2px;
}

/* 卡片操作 */
.card-operate {
  display: flex;
  gap: 6px;
  padding: 0 16px 14px;
}
.card-operate .btn-small { flex: 1; text-align: center; justify-content: center; }

/* ===== 颜色选择器包装 ===== */
.color-picker-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.color-picker-wrap input[type="color"] {
  width: 42px;
  height: 42px;
  border: 2px solid var(--border);
  border-radius: var(--radius-xs);
  cursor: pointer;
  padding: 3px;
  transition: border-color var(--transition), transform var(--transition);
  background: transparent;
}
.color-picker-wrap input[type="color"]:hover {
  border-color: var(--accent);
  transform: scale(1.05);
}
.color-picker-wrap input[type="text"] {
  flex: 1;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 14px;
  font-family: var(--font-mono);
  outline: none;
  background: var(--surface-soft);
  color: var(--text);
  transition: border-color var(--transition), background var(--transition);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.04);
}
.color-picker-wrap input[type="text"]:focus {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: var(--ring), inset 0 1px 3px rgba(0, 0, 0, 0.04);
}
.color-picker-wrap.small input[type="color"] { width: 34px; height: 34px; }
.color-picker-wrap.small input[type="text"] { font-size: 12px; }

/* ===== 模态对话框 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn .2s ease;
}
.modal {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 90%;
  max-width: 440px;
  box-shadow: var(--shadow-lg), var(--accent-glow);
  animation: slideUp .3s ease;
  transition: background var(--transition-slow), border-color var(--transition-slow);
}
.modal h3 { margin-bottom: 20px; font-size: 20px; font-weight: 700; letter-spacing: -0.3px; }
.modal-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 14px;
}
.modal-field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.modal-field input, .modal-field select {
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 14px;
  outline: none;
  background: var(--surface-soft);
  color: var(--text);
  transition: all var(--transition);
  font-family: var(--font-sans);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.04);
}
.modal-field input:focus, .modal-field select:focus {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: var(--ring), inset 0 1px 3px rgba(0, 0, 0, 0.04);
}
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

/* 模态框颜色选择 */
.modal-colors-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.modal-colors-row .color-swatch-btn { flex-shrink: 0; }
.modal-colors-row input[type="text"] {
  flex: 1;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 14px;
  font-family: var(--font-mono);
  outline: none;
  background: var(--surface-soft);
  color: var(--text);
  transition: all var(--transition);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.04);
}
.modal-colors-row input[type="text"]:focus {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: var(--ring), inset 0 1px 3px rgba(0, 0, 0, 0.04);
}

.modal-colors-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  min-height: 28px;
}

.modal-color-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1.5px solid transparent;
}
.modal-color-chip:hover {
  transform: scale(1.08);
  border-color: rgba(255,255,255,.4);
  box-shadow: var(--shadow-sm);
}

/* ===== Toast 通知 ===== */
.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  background: var(--text);
  color: var(--bg);
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 550;
  z-index: 999;
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(255, 255, 255, 0.08);
  animation: slideInRight .3s ease;
  pointer-events: none;
  letter-spacing: 0.1px;
}
.toast.fade-out { animation: fadeOut .3s ease forwards; }

/* ===== 空状态 ===== */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 40px;
  color: var(--text-muted);
}
.empty-state p { font-size: 15px; }

/* ===== 调色板详情页 ===== */
.palette-detail {
  animation: fadeSlideIn .3s ease;
}
.palette-detail .btn-secondary {
  margin-bottom: 24px;
}

.detail-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.detail-header h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.6px;
}

/* 调色板切换导航 (在 detail-top-row 内部) */
.detail-nav-btn {
  padding: 7px 10px;
  border: 1.5px solid var(--border);
  background: var(--glass-bg);
  border-radius: var(--radius-xs);
  font-size: 14px;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.detail-nav-btn [data-icon] { width: 16px; height: 16px; }
.detail-nav-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-gradient-soft);
}
.detail-nav-btn:disabled {
  opacity: 0.3;
  cursor: default;
}
/* 顶部行：导航 + 推荐选择器 */
.detail-top-row {
  display: flex;
  align-items: stretch;
  gap: 10px;
  margin-bottom: 14px;
}

/* 调色板切换导航 */
.detail-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* 调色板推荐选择器 */
.detail-picker {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  flex: 1;
  min-width: 0;
}
.dp-item {
  flex: 1;
  min-width: 130px;
  max-width: 200px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: all var(--transition-spring);
  background: var(--surface);
}
.dp-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.dp-colors {
  display: flex;
  height: 28px;
}
.dp-colors span {
  flex: 1;
}
.dp-name {
  font-size: 11px;
  font-weight: 600;
  padding: 6px 8px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}
.dp-item:hover .dp-name { color: var(--accent); }

/* 切换导航 */
.detail-nav-count {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 40px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.detail-colors {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 20px;
}

.detail-color-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px;
  transition: padding var(--transition), filter var(--transition);
  cursor: default;
  flex-wrap: wrap;
  gap: 16px;
}
.detail-color-item:hover {
  padding-left: 36px;
  filter: brightness(1.05);
}

.detail-color-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-color-hex {
  font-size: 28px;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
  text-shadow: 0 1px 3px rgba(0,0,0,.15);
}

.detail-color-rgb,
.detail-color-hsl {
  font-size: 13px;
  font-family: var(--font-mono);
  opacity: .85;
}

.detail-color-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.detail-copy-btn {
  padding: 8px 16px;
  border: 1.5px solid rgba(255,255,255,.3);
  background: rgba(255,255,255,.15);
  color: inherit;
  border-radius: var(--radius-xs);
  font-size: 13px;
  font-weight: 550;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.detail-copy-btn:hover {
  background: rgba(255,255,255,.28);
  border-color: rgba(255,255,255,.5);
}
.detail-copy-btn [data-icon] { width: 13px; height: 13px; }

.detail-export {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}