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

:root {
    --bg: #0f1117;
    --bg-card: #1a1d27;
    --bg-hover: #22263a;
    --border: #2a2e3f;
    --text: #e4e6ed;
    --text-muted: #8b8fa3;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 10px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

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

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

a:hover {
    text-decoration: underline;
}

/* Navbar */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 60px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
}

.nav-brand svg {
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
}

.nav-user {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 4px 12px;
    background: var(--bg-hover);
    border-radius: 20px;
}

/* Main */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px;
}

.main-full {
    padding: 0;
}

/* Auth */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: radial-gradient(ellipse at top, #1a1d3a 0%, var(--bg) 70%);
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo {
    width: 56px;
    height: 56px;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--primary);
}

.auth-header h1 {
    font-size: 1.5rem;
    margin-bottom: 6px;
}

.auth-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group small {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    text-decoration: none;
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text);
    text-decoration: none;
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(34, 197, 94, 0.12);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.alert-error {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.25);
}

/* Page header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
}

.page-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon-blue { background: rgba(99, 102, 241, 0.15); color: var(--primary); }
.stat-icon-green { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.stat-icon-purple { background: rgba(168, 85, 247, 0.15); color: #a855f7; }

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.card-header h2 {
    font-size: 1.1rem;
}

/* Table */
.table-responsive {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 14px 20px;
    text-align: left;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
}

.table th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody tr:hover {
    background: var(--bg-hover);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bg-hover);
    color: var(--text-muted);
}

.badge-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.badge-purple {
    background: rgba(168, 85, 247, 0.15);
    color: #a855f7;
}

.badge-lg {
    padding: 5px 14px;
    font-size: 0.85rem;
}

/* URL cell */
.url-cell {
    display: flex;
    align-items: center;
    gap: 8px;
}

.url-text {
    font-size: 0.8rem;
    color: var(--primary-hover);
    background: var(--bg);
    padding: 4px 8px;
    border-radius: 4px;
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.url-large {
    max-width: 500px;
    font-size: 0.9rem;
}

.btn-copy {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    font-family: inherit;
    transition: all 0.2s;
}

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

.action-buttons {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state svg {
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state h3 {
    color: var(--text);
    margin-bottom: 8px;
}

.empty-state p {
    margin-bottom: 24px;
}

.empty-state-sm {
    padding: 30px;
}

/* Form card */
.form-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

.form-section {
    margin-bottom: 32px;
}

.form-section h3 {
    font-size: 1rem;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.form-actions {
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* Template grid */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}

.template-card input {
    display: none;
}

.template-card-inner {
    padding: 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.template-card input:checked + .template-card-inner {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
}

.template-card-inner:hover {
    border-color: var(--primary-hover);
}

.template-icon {
    margin-bottom: 10px;
    color: var(--primary);
}

.template-card-inner strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.template-card-inner span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Link detail */
.link-info-card {
    padding: 24px;
    margin-bottom: 32px;
}

.link-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.link-info-grid label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.section-title {
    font-size: 1.2rem;
    margin-bottom: 16px;
}

/* Visit cards */
.visit-card {
    margin-bottom: 16px;
    padding: 0;
}

.visit-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.visit-time {
    font-weight: 500;
}

.visit-ip {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: monospace;
}

.visit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0;
}

.visit-section {
    padding: 20px;
    border-right: 1px solid var(--border);
}

.visit-section:last-child {
    border-right: none;
}

.visit-section h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    margin-bottom: 14px;
    color: var(--text-muted);
}

.visit-section-highlight {
    background: rgba(99, 102, 241, 0.05);
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.info-list div {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

.info-list span {
    color: var(--text-muted);
}

.text-danger {
    color: var(--danger);
    font-size: 0.9rem;
}

.text-wrap {
    word-break: break-all;
    font-size: 0.8rem !important;
    max-width: 280px;
    text-align: right;
}

.mono {
    font-family: monospace;
    font-size: 0.8rem !important;
}

.visit-section-full {
    grid-column: 1 / -1;
}

.visit-section-media {
    grid-column: 1 / -1;
    background: rgba(168, 85, 247, 0.05);
}

.media-capture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.media-item label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.camera-preview {
    max-width: 100%;
    max-height: 280px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.audio-player {
    width: 100%;
    height: 40px;
}

.tag-list {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
    word-break: break-word;
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .nav-links {
        gap: 10px;
    }

    .nav-user {
        display: none;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .visit-section {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
}