/* ============================================
   NAS Auth - 共享基础样式
   ============================================ */

/* ---- CSS 变量（主题色） ---- */
:root {
  /* 主色调 */
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-primary-light: #c7d2fe;
  --color-primary-bg: rgba(99, 102, 241, 0.08);

  /* 功能色 */
  --color-success: #10b981;
  --color-success-bg: #ecfdf5;
  --color-success-border: #6ee7b7;
  --color-danger: #ef4444;
  --color-danger-dark: #dc2626;
  --color-danger-bg: #fef2f2;
  --color-danger-border: #fca5a5;
  --color-warning: #f59e0b;
  --color-warning-bg: #fffbeb;
  --color-info: #3b82f6;
  --color-info-bg: #eff6ff;

  /* 中性色 */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-hover: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-text: #1a202c;
  --color-text-secondary: #4a5568;
  --color-text-muted: #718096;
  --color-text-inverse: #ffffff;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 40px;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "JetBrains Mono", Consolas, monospace;

  /* Alert 文字色 */
  --color-alert-success-text: #065f46;
  --color-alert-error-text: #991b1b;
  --color-alert-info-text: #1e40af;
  --color-alert-warning-text: #92400e;

  /* Scope info 文字色 */
  --color-scope-info-heading: #1e40af;
  --color-scope-info-text: #1e3a8a;

  /* Alert 边框色（info/warning 专用） */
  --color-alert-info-border: #bfdbfe;
  --color-alert-warning-border: #fde68a;

  /* 过渡 */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* ---- 深色模式 ---- */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-surface-hover: #334155;
    --color-border: #334155;
    --color-border-light: #1e293b;
    --color-text: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-primary-bg: rgba(99, 102, 241, 0.15);
    --color-success-bg: rgba(16, 185, 129, 0.15);
    --color-danger-bg: rgba(239, 68, 68, 0.15);
    --color-warning-bg: rgba(245, 158, 11, 0.15);
    --color-info-bg: rgba(59, 130, 246, 0.15);
    --color-alert-success-text: #6ee7b7;
    --color-alert-error-text: #fca5a5;
    --color-alert-info-text: #93c5fd;
    --color-alert-warning-text: #fcd34d;
    --color-scope-info-heading: #93c5fd;
    --color-scope-info-text: #bfdbfe;
    --color-alert-info-border: rgba(59, 130, 246, 0.3);
    --color-alert-warning-border: rgba(245, 158, 11, 0.3);
    --color-btn-secondary-hover-bg: #475569;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.3);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.4);
  }
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-dark); }

img { max-width: 100%; height: auto; }

code {
  font-family: var(--font-mono);
  background: var(--color-primary-bg);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  font-size: 0.875em;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 { color: var(--color-text); line-height: 1.3; }
h1 { font-size: 1.875rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

/* ---- Container ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-sm { max-width: 800px; }
.container-xs { max-width: 480px; }

/* ---- 背景渐变（用于页面级） ---- */
.bg-gradient-primary {
  background: linear-gradient(135deg, #2c3e50 0%, #4ca1af 100%);
}

.bg-gradient-accent {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* ---- 页面布局 ---- */
.page-wrap {
  min-height: 100vh;
  padding: var(--space-2xl) var(--space-md) 60px;
}

.page-header {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-lg);
}

.page-header.text-center { text-align: center; }

.page-header h1 {
  margin: 0;
  color: var(--color-text);
}

.page-header p {
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
  line-height: 1.6;
}

.page-section {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-md);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-inverse);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
  color: var(--color-text-inverse);
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-dark) 100%);
  color: var(--color-text-inverse);
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.4);
  color: var(--color-text-inverse);
}

.btn-secondary {
  background: var(--color-border);
  color: var(--color-text-secondary);
}
.btn-secondary:hover {
  background: var(--color-btn-secondary-hover-bg);
  color: var(--color-text);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}
.btn-ghost:hover { background: var(--color-border-light); }

.btn-sm { padding: 6px 12px; font-size: 0.8125rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.card-hover:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.card-body { }

.card-footer {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* ---- Forms ---- */
.form-group { margin-bottom: var(--space-md); }

.form-label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.875rem;
}

.form-label .hint-icon {
  cursor: help;
  font-size: 1rem;
  margin-left: 4px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input:read-only,
.form-input:disabled {
  background: var(--color-border-light);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.form-input::placeholder { color: var(--color-text-muted); }

.form-textarea { resize: vertical; min-height: 80px; }

.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234a5568' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }

.form-checkbox {
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-primary);
  margin-right: 6px;
}

.form-hint {
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.form-error {
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--color-danger);
}

.form-inline-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 0.875rem;
}

/* ---- Grid / Layout ---- */
.grid { display: grid; gap: var(--space-md); }

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-sidebar {
  grid-template-columns: 280px 1fr;
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-sidebar {
    grid-template-columns: 1fr;
  }
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ---- Alerts / Messages ---- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  line-height: 1.5;
  display: none;
  margin-bottom: var(--space-md);
  border: 1px solid transparent;
}

.alert.active { display: block; }

.alert-success {
  background: var(--color-success-bg);
  color: var(--color-alert-success-text);
  border-color: var(--color-success-border);
}

.alert-error {
  background: var(--color-danger-bg);
  color: var(--color-alert-error-text);
  border-color: var(--color-danger-border);
}

.alert-info {
  background: var(--color-info-bg);
  color: var(--color-alert-info-text);
  border-color: var(--color-alert-info-border);
}

.alert-warning {
  background: var(--color-warning-bg);
  color: var(--color-alert-warning-text);
  border-color: var(--color-alert-warning-border);
}

/* ---- Modals ---- */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.modal-overlay.active { display: flex; }

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.modal-footer {
  display: flex;
  gap: var(--space-sm);
  justify-content: flex-end;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* ---- Badges / Tags ---- */
.tag {
  display: inline-block;
  background: var(--color-border-light);
  color: var(--color-text-secondary);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.tag-primary {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.tag-success {
  background: var(--color-success-bg);
  color: #065f46;
}

.tag-danger {
  background: var(--color-danger-bg);
  color: #991b1b;
}

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 12px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
}

th {
  background: var(--color-border-light);
  font-weight: 600;
  color: var(--color-text-secondary);
}

tr:hover td { background: rgba(99, 102, 241, 0.03); }

/* ---- Loading / Empty States ---- */
.loading-state {
  text-align: center;
  padding: var(--space-xl);
  color: var(--color-text-muted);
}

.loading-spinner::after {
  content: '';
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: var(--space-sm);
}

@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--color-text-muted);
}

.empty-state-icon { font-size: 3rem; margin-bottom: var(--space-md); }

/* ---- Status Indicator ---- */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--color-success);
  color: white;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
}

.status-indicator::before {
  content: "●";
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---- Scope Info Box ---- */
.scope-info {
  background: var(--color-info-bg);
  border-left: 4px solid var(--color-info);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  border-radius: var(--radius-sm);
}

.scope-info h4 {
  color: var(--color-scope-info-heading);
  margin-bottom: var(--space-sm);
}

.scope-info p {
  color: var(--color-scope-info-text);
  font-size: 0.8125rem;
  line-height: 1.6;
}

/* ---- Sidebar ---- */
.sidebar {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  height: fit-content;
}

.sidebar-item {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sidebar-item:hover {
  background: var(--color-primary-bg);
  border-color: var(--color-primary-light);
}

.sidebar-item.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ---- Section Box ---- */
.section-box {
  margin-bottom: var(--space-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.section-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}

/* ---- Footer ---- */
.footer {
  margin-top: var(--space-2xl);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ---- Utility ---- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }

/* ---- Responsive ---- */
@media (max-width: 640px) {
  .page-wrap { padding: var(--space-md) var(--space-sm) 40px; }
  .page-header { padding: var(--space-lg) var(--space-md); }
  .page-header h1 { font-size: 1.5rem; }
  .modal-content { padding: var(--space-lg); }
}