/* ============================================
 * 观鼎山 · 后台管理系统样式
 * ============================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-input: #16162a;
  --text: #e0e6f0;
  --text-muted: #8892a8;
  --border: rgba(90, 106, 154, 0.2);
  --accent: #D4A843;
  --accent-hover: #c49a32;
  --danger: #e74c5c;
  --success: #2ecc71;
  --primary: #4A90D9;
  --sidebar-width: 200px;
  --header-height: 56px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== 登录页 ===== */
.gds-login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(ellipse at center, #1a1a2e 0%, #0f0f1a 70%);
}

.gds-login-container {
  width: 360px;
  padding: 40px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
}

.gds-login-taiji {
  margin-bottom: 16px;
  animation: gds-rotate-taiji 6s linear infinite;
}

@keyframes gds-rotate-taiji {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.gds-login-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.gds-login-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.gds-login-error {
  padding: 8px 12px;
  background: rgba(231, 76, 92, 0.15);
  border: 1px solid rgba(231, 76, 92, 0.3);
  border-radius: 8px;
  color: var(--danger);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.gds-login-form {
  text-align: left;
}

/* ===== 表单组件 ===== */
.gds-form-group {
  margin-bottom: 16px;
}

.gds-form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.gds-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

.gds-input:focus {
  border-color: var(--accent);
}

.gds-input--sm {
  padding: 6px 10px;
  font-size: 0.85rem;
}

.gds-select {
  padding: 6px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.85rem;
  outline: none;
}

.gds-color-picker {
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  background: none;
  padding: 2px;
}

.gds-range {
  width: 80px;
  vertical-align: middle;
  accent-color: var(--accent);
}

.gds-range-val {
  display: inline-block;
  min-width: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.gds-checkbox {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ===== 按钮 ===== */
.gds-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg-input);
  color: var(--text);
  text-decoration: none;
}

.gds-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.gds-btn--primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.gds-btn--primary:hover {
  background: #3a7bc8;
  color: #fff;
}

.gds-btn--success {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}

.gds-btn--success:hover {
  background: #27ae60;
  color: #fff;
}

.gds-btn--danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.gds-btn--danger:hover {
  background: #c0392b;
  color: #fff;
}

.gds-btn--sm {
  padding: 4px 10px;
  font-size: 0.8rem;
}

.gds-btn--full {
  width: 100%;
  justify-content: center;
  padding: 12px;
  font-size: 1rem;
}

/* ===== 仪表盘 ===== */
.gds-dashboard-page {
  display: flex;
  flex-direction: column;
}

.gds-dash-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.gds-dash-header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gds-dash-logo {
  font-size: 1rem;
  color: var(--accent);
  font-weight: 700;
}

.gds-dash-header-right {
  display: flex;
  gap: 16px;
  align-items: center;
}

.gds-dash-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.gds-dash-link:hover {
  color: var(--accent);
}

.gds-dash-link--danger:hover {
  color: var(--danger);
}

.gds-dash-body {
  display: flex;
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

/* 侧边栏 */
.gds-dash-sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 12px 0;
  overflow-y: auto;
  z-index: 50;
}

.gds-dash-nav-item {
  display: block;
  padding: 10px 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.gds-dash-nav-item:hover {
  color: var(--text);
  background: rgba(212, 168, 67, 0.05);
}

.gds-dash-nav-item.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(212, 168, 67, 0.08);
}

/* 主内容区 */
.gds-dash-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 24px 32px;
  max-width: 1200px;
}

.gds-dash-section {
  display: none;
}

.gds-dash-section.active {
  display: block;
}

.gds-dash-section-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.gds-dash-section-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.gds-dash-toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.gds-dash-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
}

/* ===== 表格 ===== */
.gds-table {
  width: 100%;
  border-collapse: collapse;
}

.gds-table th {
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.gds-table td {
  padding: 8px 10px;
  border-bottom: 1px solid rgba(90, 106, 154, 0.08);
  font-size: 0.85rem;
  vertical-align: middle;
}

.gds-table tr:hover td {
  background: rgba(212, 168, 67, 0.02);
}

.gds-td-center {
  text-align: center;
}

.gds-star-badge {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(212, 168, 67, 0.15);
  color: var(--accent);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.gds-muted {
  color: var(--text-muted);
  font-size: 0.75rem;
}

code {
  font-family: 'SF Mono', 'Consolas', monospace;
  font-size: 0.8rem;
  color: var(--accent);
}

/* ===== 消息提示 ===== */
.gds-form-msg {
  margin-top: 12px;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
}

.gds-form-msg.success {
  background: rgba(46, 204, 113, 0.15);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: var(--success);
}

.gds-form-msg.error {
  background: rgba(231, 76, 92, 0.15);
  border: 1px solid rgba(231, 76, 92, 0.3);
  color: var(--danger);
}

/* ===== Toast 提示 ===== */
.gds-toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 0.85rem;
  z-index: 9999;
  animation: gds-toast-in 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.gds-toast.success {
  background: #1a3a2a;
  border: 1px solid rgba(46, 204, 113, 0.4);
  color: #2ecc71;
}

.gds-toast.error {
  background: #3a1a1a;
  border: 1px solid rgba(231, 76, 92, 0.4);
  color: #e74c5c;
}

@keyframes gds-toast-in {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .gds-dash-sidebar {
    display: none;
  }
  .gds-dash-content {
    margin-left: 0;
    padding: 16px;
  }
  .gds-table {
    font-size: 0.8rem;
  }
  .gds-table th, .gds-table td {
    padding: 6px 6px;
  }
  .gds-input--sm {
    width: 60px;
  }
}