/* ============================================================
   UTM Vault - Mobile-First Stylesheet
   ============================================================ */

:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --danger: #DC2626;
    --danger-hover: #B91C1C;
    --success: #16A34A;
    --success-hover: #15803D;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --sidebar-width: 240px;
    --radius: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--gray-800);
    background: var(--gray-50);
}

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

/* ---- Guest Layout (Login/Reset) ---- */
.guest-body {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.guest-container { width: 100%; max-width: 400px; }

.guest-card {
    background: #fff;
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow-lg);
}

.guest-logo {
    text-align: center;
    margin-bottom: 24px;
}

.guest-logo h1 {
    font-size: 24px;
    color: var(--gray-900);
    font-weight: 700;
}

/* ---- App Layout ---- */
.app-body { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-900);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--gray-700);
}

.sidebar-header h2 { font-size: 18px; }
.sidebar-header a { color: #fff; text-decoration: none; }
.sidebar-close { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }

.sidebar-nav { list-style: none; padding: 12px 0; flex: 1; }

.sidebar-nav li a {
    display: block;
    padding: 10px 20px;
    color: var(--gray-300);
    text-decoration: none;
    transition: background 0.15s;
}

.sidebar-nav li a:hover,
.sidebar-nav li a.active {
    background: var(--gray-700);
    color: #fff;
    text-decoration: none;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-700);
}

.user-info { margin-bottom: 8px; }
.user-info a { color: #fff; font-weight: 500; text-decoration: none; }
.user-info a:hover { text-decoration: underline; }
.user-role { display: block; font-size: 12px; color: var(--gray-400); }

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.topbar {
    background: #fff;
    padding: 16px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--gray-700);
}

.page-title { font-size: 18px; font-weight: 600; }

.content { padding: 24px; max-width: 1200px; }

/* ---- Alerts ---- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}

.alert ul { margin: 0; padding-left: 20px; }
.alert-success { background: #DCFCE7; color: #166534; border: 1px solid #BBF7D0; }
.alert-error { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }

/* ---- Buttons ---- */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, opacity 0.15s;
    line-height: 1.4;
}

.btn:hover { text-decoration: none; opacity: 0.9; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: var(--success-hover); }
.btn-outline { background: #fff; color: var(--gray-700); border: 1px solid var(--gray-300); }
.btn-outline:hover { background: var(--gray-50); }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-block { display: block; width: 100%; text-align: center; }

.btn-copy {
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
}

.btn-copy:hover { background: var(--gray-200); }
.btn-copy.copied { background: #DCFCE7; border-color: #BBF7D0; color: #166534; }

/* ---- Forms ---- */
.form-card { max-width: 600px; }

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--gray-700);
}

.form-group small {
    display: block;
    margin-top: 4px;
    color: var(--gray-500);
    font-size: 12px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group input:disabled {
    background: var(--gray-100);
    color: var(--gray-500);
}

.input-password {
    position: relative;
}

.input-password input {
    padding-right: 44px;
}

.password-toggle {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    padding: 4px;
    display: flex;
    align-items: center;
}

.password-toggle:hover { color: var(--gray-600); }
.password-toggle svg { width: 20px; height: 20px; }

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group { flex: 1; }

.form-actions {
    display: flex;
    gap: 8px;
    margin-top: 20px;
}

.form-footer {
    text-align: center;
    margin-top: 16px;
    font-size: 13px;
}

.required { color: var(--danger); }

.perm-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-100);
}

.perm-row select {
    width: auto;
    min-width: 140px;
}

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

.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th,
.table td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
}

.table th {
    background: var(--gray-50);
    font-weight: 600;
    font-size: 13px;
    color: var(--gray-600);
    white-space: nowrap;
}

.table td { font-size: 14px; }

.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--gray-50); }

.notes-row td { background: var(--gray-50) !important; padding-top: 2px; padding-bottom: 8px; }

.actions { white-space: nowrap; }
.actions .btn { margin-right: 4px; }

.inline-form { display: inline; }

.empty-state {
    text-align: center;
    padding: 32px;
    color: var(--gray-500);
}

/* ---- Stats ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    text-align: center;
}

.stat-number { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 13px; color: var(--gray-500); margin-top: 4px; }

/* ---- Cards ---- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.card h3 { margin-bottom: 4px; font-size: 16px; }
.card-actions { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--gray-100); }

/* ---- Sections ---- */
.section { margin-bottom: 32px; }

.section h2 { font-size: 18px; margin-bottom: 16px; }
.section h3 { font-size: 16px; margin-bottom: 12px; }

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.section-header h2 { margin-bottom: 0; }

.section-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--primary); }

/* ---- UTM Preview ---- */
.utm-preview {
    background: var(--gray-800);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 24px;
}

.utm-preview label {
    display: block;
    font-size: 12px;
    color: var(--gray-400);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.preview-url {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 13px;
    color: #A5F3FC;
    word-break: break-all;
    line-height: 1.6;
}

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
    background: var(--gray-100);
    color: var(--gray-600);
}

.badge-success { background: #DCFCE7; color: #166534; }
.badge-muted { background: var(--gray-100); color: var(--gray-500); }

/* ---- Utility ---- */
.text-muted { color: var(--gray-500); font-size: 13px; }

code {
    background: var(--gray-100);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
}

.url-cell { display: flex; align-items: center; gap: 8px; }
.url-truncate { max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; font-size: 13px; }

.created-meta {
    display: block;
    font-size: 12px;
    color: var(--gray-500);
    line-height: 1.4;
}

/* ---- Mobile Responsive ---- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-close { display: block; }
    .hamburger { display: block; }

    .main-content { margin-left: 0; }
    .content { padding: 16px; }

    .topbar { padding: 12px 16px; }
    .page-title { font-size: 16px; }

    .form-row { flex-direction: column; gap: 0; }

    .section-header { flex-direction: column; }
    .section-actions { width: 100%; }
    .section-actions .btn { flex: 1; text-align: center; }

    .stats-grid { grid-template-columns: 1fr 1fr; }

    .card-grid { grid-template-columns: 1fr; }

    .table th,
    .table td { padding: 8px 10px; font-size: 13px; }

    .url-truncate { max-width: 150px; }

    .actions { display: flex; flex-direction: column; gap: 4px; }
    .actions .btn { margin-right: 0; }

    .form-actions { flex-direction: column; }
    .form-actions .btn { width: 100%; text-align: center; }

    .perm-row { flex-direction: column; gap: 4px; align-items: flex-start; }
    .perm-row select { width: 100%; }
}

@media (max-width: 480px) {
    .guest-card { padding: 24px 20px; }
    .stats-grid { grid-template-columns: 1fr; }
}