/* =====================================================================
   REMIND AI Admin Dashboard CSS - Modern SaaS Responsive Theme
   ===================================================================== */

:root {
    --bg-primary: #f8fafc;
    --bg-surface: #ffffff;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --brand-primary: #4f46e5;
    --brand-hover: #4338ca;
    --brand-light: #e0e7ff;
    
    --success: #10b981;
    --success-bg: #ecfdf5;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --info: #0284c7;
    --info-bg: #f0f9ff;
    
    --sidebar-width: 260px;
    --header-height: 64px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-surface: #1e293b;
    --bg-card: #1e293b;
    --border-color: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --brand-primary: #6366f1;
    --brand-hover: #4f46e5;
    --brand-light: #312e81;
    
    --success-bg: rgba(16, 185, 129, 0.15);
    --warning-bg: rgba(245, 158, 11, 0.15);
    --danger-bg: rgba(239, 68, 68, 0.15);
    --info-bg: rgba(2, 132, 199, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 14px;
    min-height: 100vh;
}

a {
    color: var(--brand-primary);
    text-decoration: none;
    transition: color 0.15s ease;
}
a:hover {
    color: var(--brand-hover);
}

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

/* Sidebar */
.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 40;
    transition: transform 0.25s ease;
}

.sidebar-header {
    height: var(--header-height);
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}

.logo-badge {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 2px 4px rgba(79, 70, 229, 0.3);
}

.brand-title {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--text-primary);
}

.brand-subtitle {
    font-size: 11px;
    color: var(--brand-primary);
    font-weight: 600;
    text-transform: uppercase;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 12px 12px 6px;
    letter-spacing: 0.5px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 14px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-weight: 500;
    margin-bottom: 2px;
    transition: all 0.15s ease;
}

.nav-item:hover {
    background-color: var(--brand-light);
    color: var(--brand-primary);
}

.nav-item.active {
    background-color: var(--brand-primary);
    color: #ffffff;
}

.nav-icon {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-snippet {
    display: flex;
    flex-direction: column;
}

.user-snippet .username {
    font-weight: 600;
    font-size: 13px;
}
.user-snippet .role-badge {
    font-size: 10px;
    color: var(--brand-primary);
    font-weight: 700;
}

/* Main Area */
.app-main {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Header */
.app-header {
    height: var(--header-height);
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 30;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-primary);
}

.page-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-icon {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.15s ease;
}
.btn-icon:hover {
    background: var(--border-color);
}

/* Content */
.app-content {
    padding: 28px;
    flex: 1;
}

/* Alerts / Flashes */
.alert {
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}
.alert-success {
    background-color: var(--success-bg);
    color: #065f46;
    border: 1px solid #a7f3d0;
}
.alert-error {
    background-color: var(--danger-bg);
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Stat Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.stat-info .stat-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.stat-info .stat-value {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-info .stat-desc {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.stat-icon.primary { background-color: var(--brand-light); color: var(--brand-primary); }
.stat-icon.success { background-color: var(--success-bg); color: var(--success); }
.stat-icon.warning { background-color: var(--warning-bg); color: var(--warning); }
.stat-icon.danger { background-color: var(--danger-bg); color: var(--danger); }
.stat-icon.info { background-color: var(--info-bg); color: var(--info); }

/* Card Components */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.card-title {
    font-size: 16px;
    font-weight: 700;
}

.card-body {
    padding: 24px;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 13px;
}

.data-table th {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table tr:hover td {
    background-color: rgba(79, 70, 229, 0.02);
}

/* Badges / Pills */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 600;
}
.badge-success { background-color: var(--success-bg); color: var(--success); }
.badge-warning { background-color: var(--warning-bg); color: var(--warning); }
.badge-danger { background-color: var(--danger-bg); color: var(--danger); }
.badge-info { background-color: var(--info-bg); color: var(--info); }
.badge-primary { background-color: var(--brand-light); color: var(--brand-primary); }

/* Buttons & Inputs */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
}

.btn-primary { background-color: var(--brand-primary); color: #ffffff; }
.btn-primary:hover { background-color: var(--brand-hover); }

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

.btn-danger { background-color: var(--danger); color: #ffffff; }
.btn-danger:hover { opacity: 0.9; }

.btn-sm { padding: 4px 10px; font-size: 12px; }

.input-field, select.input-field, textarea.input-field {
    width: 100%;
    padding: 9px 12px;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    transition: border-color 0.15s;
}

.input-field:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

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

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

/* Modals */
.modal-backdrop {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 50;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-dialog {
    background-color: var(--bg-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 520px;
    overflow: hidden;
    animation: modalSlide 0.2s ease-out;
}

@keyframes modalSlide {
    from { transform: translateY(15px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background-color: var(--bg-primary);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .app-sidebar {
        transform: translateX(-100%);
    }
    .app-sidebar.open {
        transform: translateX(0);
    }
    .app-main {
        margin-left: 0;
    }
    .mobile-toggle {
        display: block;
    }
    .app-content {
        padding: 16px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
}