/* ═══════════════════════════════════════════════════════
   Daidaispace 2.0 — 简约现代设计系统
   ═══════════════════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #eef2ff;
    --primary-glow: rgba(99, 102, 241, 0.15);
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-light: #fef2f2;
    --success: #10b981;
    --success-light: #ecfdf5;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --bg: #f8fafc;
    --surface: #ffffff;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --text: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.04), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.06), 0 4px 10px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.08);
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ── Animations ── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.animate-in { animation: fadeInUp 0.5s var(--transition) forwards; }
.animate-in-delay-1 { animation-delay: 0.05s; opacity: 0; }
.animate-in-delay-2 { animation-delay: 0.1s; opacity: 0; }
.animate-in-delay-3 { animation-delay: 0.15s; opacity: 0; }
.animate-in-delay-4 { animation-delay: 0.2s; opacity: 0; }

/* ═══════════════ Navbar ═══════════════ */
.navbar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: 56px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }

.navbar-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    margin-right: 32px;
    white-space: nowrap;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity var(--transition-fast);
}
.navbar-brand:hover { opacity: 0.8; }

/* 品牌 logo：约束为固定方形尺寸，避免原始图片撑破 56px 高的导航栏 */
.navbar-brand img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}


.navbar-links {
    display: flex;
    align-items: center;
    height: 100%;
    flex: 1;
    gap: 2px;
}

.nav-item-top {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-item-top > a,
.nav-item-top > button {
    display: flex;
    align-items: center;
    gap: 5px;
    height: 100%;
    padding: 0 16px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    white-space: nowrap;
    border-radius: var(--radius);
    transition: color var(--transition-fast), background var(--transition-fast);
    margin: 0 2px;
}
.nav-item-top > a:hover,
.nav-item-top > button:hover {
    color: var(--text);
    background: var(--border-light);
}
.nav-item-top.active > a {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-item-top > a::after,
.nav-item-top > button::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 18px;
    right: 18px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px 2px 0 0;
    transform: scaleX(0);
    transition: transform var(--transition);
}
.nav-item-top:hover > a::after,
.nav-item-top:hover > button::after,
.nav-item-top.active > a::after { transform: scaleX(1); }

.nav-item-top .chevron {
    font-size: 10px;
    opacity: 0.5;
    transition: transform var(--transition-fast);
}
.nav-item-top:hover .chevron { transform: rotate(180deg); }

/* Dropdown */
.nav-dropdown-menu {
    display: block;
    position: absolute;
    top: calc(100% + 4px);
    left: 4px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 240px;
    padding: 6px;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.96);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    transform-origin: top left;
}
.nav-item-top:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.nav-dropdown-menu .menu-section {
    padding: 8px 12px 4px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.nav-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}
.nav-dropdown-menu a:hover { background: var(--bg); color: var(--text); }

.nav-dropdown-menu a .dm-icon { width: 20px; text-align: center; flex-shrink: 0; font-size: 15px; }
.nav-dropdown-menu a .dm-text { flex: 1; }
.nav-dropdown-menu a .dm-desc {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 1px;
}
.nav-dropdown-menu a .dm-badge {
    font-size: 10px;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}

/* Navbar Right */
.navbar-right { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.badge-admin { background: var(--primary-light); color: var(--primary); }

/* User Menu */
.nav-user-menu { position: relative; }

.nav-user-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: 1px solid transparent;
    background: none;
    font-family: inherit;
    padding: 4px 12px 4px 4px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}
.nav-user-trigger:hover { background: var(--border-light); border-color: var(--border); }

.nav-user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    flex-shrink: 0;
    transition: border-color var(--transition-fast);
}
.nav-user-trigger:hover .nav-user-avatar { border-color: var(--primary); }

.nav-user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    padding: 6px;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.96);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    transform-origin: top right;
}
.nav-user-menu:hover .nav-user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.nav-user-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}
.nav-user-dropdown a:hover { background: var(--bg); }
.nav-user-dropdown .divider { height: 1px; background: var(--border); margin: 4px 8px; }

.nav-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
}

.nav-user-info-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.nav-user-info-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}

.nav-user-info-email {
    font-size: 11px;
    color: var(--text-muted);
}

.nav-user-dropdown a.logout-link {
    color: var(--danger);
}
.nav-user-dropdown a.logout-link:hover {
    background: var(--danger-light);
}

.mobile-sidebar-nav a.logout-link {
    color: var(--danger) !important;
}

/* ═══════════════ Content ═══════════════ */
.content {
    padding: 0 24px;
    max-width: 1200px;
    margin: 0 auto;
}

/* ═══════════════ Buttons ═══════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    font-size: 13.5px;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    line-height: 1.4;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 1px 3px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
    box-shadow: 0 1px 3px rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
    background: var(--danger-hover);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
    transform: translateY(-1px);
}

.btn-outline {
    background: var(--surface);
    color: var(--text-secondary);
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
}
.btn-outline:hover {
    background: var(--bg);
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover {
    background: var(--border-light);
    color: var(--text);
    transform: translateY(-1px);
}

.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-lg { padding: 13px 28px; font-size: 16px; border-radius: var(--radius); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

/* ── Button Ripple ── */
.btn .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    transform: scale(0);
    animation: ripple 0.4s ease-out;
    pointer-events: none;
}

@keyframes ripple {
    to { transform: scale(4); opacity: 0; }
}

/* ═══════════════ Forms ═══════════════ */
.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: var(--surface);
    transition: all var(--transition-fast);
    outline: none;
}
.form-group input::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-group input:hover:not(:focus):not(:disabled) { border-color: #cbd5e1; }

.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }

/* ═══════════════ Badges ═══════════════ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 9px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.01em;
}
.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-warning { background: var(--warning-light); color: var(--warning); }

/* ═══════════════ Card ═══════════════ */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition), transform var(--transition-fast);
}
.card:hover { box-shadow: var(--shadow); }

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}
.card-header h2 {
    font-size: 17px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}
.card-header h2 i { color: var(--primary); }

/* Stat Cards */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    text-decoration: none;
    color: inherit;
    display: block;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--primary), #a78bfa);
    opacity: 0;
    transition: opacity var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.stat-card:hover::before { opacity: 1; }
.stat-card .label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
}
.stat-card .value { font-size: 28px; font-weight: 700; color: var(--text); }

/* ═══════════════ Table ═══════════════ */
table { width: 100%; border-collapse: collapse; }
th, td {
    padding: 11px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    font-size: 13.5px;
}
th {
    background: var(--bg);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}
tbody tr { transition: background var(--transition-fast); }
tbody tr:hover td { background: var(--bg); }

/* ═══════════════ Toast ═══════════════ */
#global-toast-container {
    position: fixed;
    top: 20px; right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    max-width: 360px;
}

.g-toast {
    pointer-events: auto;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.21, 1.02, 0.58, 1),
                opacity 0.3s ease,
                box-shadow var(--transition-fast);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    gap: 8px;
}
.g-toast:hover { box-shadow: var(--shadow-xl); }
.g-toast--in { transform: translateX(0); opacity: 1; }
.g-toast--out { transform: translateX(120%); opacity: 0; }
.g-toast-success { background: rgba(255,255,255,0.95); color: #059669; border-left: 3px solid var(--success); }
.g-toast-error { background: rgba(255,255,255,0.95); color: #dc2626; border-left: 3px solid var(--danger); }
.g-toast-info { background: rgba(255,255,255,0.95); color: #4f46e5; border-left: 3px solid var(--primary); }

/* ═══════════════ Modal ═══════════════ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s var(--transition);
}
.modal {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: 28px;
    width: 520px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: scaleIn 0.25s var(--spring);
}
.modal h3 { margin-bottom: 16px; font-size: 18px; font-weight: 700; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 24px; }

/* ═══════════════ Hamburger ═══════════════ */
.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.hamburger:hover { background: var(--border-light); color: var(--text); }

/* ═══════════════ Mobile Sidebar ═══════════════ */
.mobile-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(2px);
    z-index: 250;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.mobile-sidebar-overlay.show { display: block; opacity: 1; }

.mobile-sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: 280px;
    max-width: 80vw;
    background: var(--surface);
    z-index: 260;
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.12);
}
.mobile-sidebar.open { transform: translateX(0); }

.mobile-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    font-size: 18px;
    font-weight: 700;
    border-bottom: 1px solid var(--border);
}
.mobile-sidebar-header button {
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.mobile-sidebar-header button:hover { color: var(--text); background: var(--border-light); }

.mobile-sidebar-nav { flex: 1; overflow-y: auto; padding: 8px 0; }
.mobile-sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 13px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}
.mobile-sidebar-nav a:hover { background: var(--bg); color: var(--text); border-left-color: var(--primary); }

.mobile-nav-section {
    padding: 16px 20px 6px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}
.mobile-nav-divider { height: 1px; background: var(--border); margin: 8px 20px; }
body.sb-open { overflow: hidden; }

/* ═══════════════ Utilities ═══════════════ */
.text-muted { color: var(--text-muted); font-size: 13px; }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.text-center { text-align: center; }
.font-bold { font-weight: 700; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.truncate { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); font-size: 14px; }

.skeleton {
    background: linear-gradient(90deg, var(--border-light) 25%, var(--border) 50%, var(--border-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

code {
    background: var(--border-light);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-family: var(--font-mono);
    word-break: break-all;
}

/* ═══════════════ Responsive ═══════════════ */
@media (max-width: 768px) {
    .navbar-brand { display: none; }
    .hamburger { display: block; margin-left: 0; margin-right: auto; }
    .navbar-links { display: none; }
    .navbar-right .btn { font-size: 12px; padding: 5px 10px; }
    .content { padding: 20px 16px; }
    .stats { grid-template-columns: 1fr; }
    table { display: block; overflow-x: auto; white-space: nowrap; }
    .form-row { flex-direction: column; }
    .modal {
        padding: 20px;
        width: 100%;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        margin-top: auto;
        max-height: 90vh;
        animation: slideUp 0.3s var(--transition);
    }
    .nav-user-trigger span:not(.badge-admin) { display: none; }
    .nav-user-trigger .badge-admin { display: inline-block; font-size: 9px; }
    #global-toast-container { left: 12px; right: 12px; max-width: none; }
    .g-toast { transform: translateY(-120%); }
    .g-toast--in { transform: translateY(0); }
    .g-toast--out { transform: translateY(-120%); }
}