/* assets/css/style.css */
:root {
    --primary: #0f172a;      /* Slate 900 */
    --primary-light: #1e293b;/* Slate 800 */
    --secondary: #3b82f6;    /* Blue 500 */
    --accent: #60a5fa;       /* Blue 400 */
    --background: #f8fafc;   /* Slate 50 */
    --surface: #ffffff;      /* White */
    --border: #e2e8f0;       /* Slate 200 */
    --text: #0f172a;         /* Slate 900 */
    --text-muted: #64748b;   /* Slate 500 */
    --danger: #ef4444;       /* Red 500 */
    --danger-light: #fef2f2; /* Red 50 */
    --success: #10b981;      /* Emerald 500 */
    --success-light: #ecfdf5;/* Emerald 50 */
    --warning: #f59e0b;      /* Amber 500 */
    --warning-light: #fffbeb;/* Amber 50 */
    
    --sidebar-width: 260px;
    --header-height: 70px;
    --transition: all 0.25s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text);
    overflow: hidden; /* layout controls scrolling */
    height: 100vh;
}

/* CRM Layout Structure */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Sidebar Styling */
.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary);
    color: white;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: var(--transition);
    z-index: 10;
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    max-height: 40px;
    filter: brightness(0) invert(1);
}

.sidebar-menu {
    flex-grow: 1;
    padding: 1.5rem 0.75rem;
    overflow-y: auto;
}

.sidebar-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    border-radius: 0.375rem;
    margin-bottom: 0.25rem;
    font-weight: 500;
    transition: var(--transition);
}

.sidebar-item svg {
    margin-right: 0.75rem;
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
}

.sidebar-item:hover, .sidebar-item.active {
    color: white;
    background-color: rgba(255, 255, 255, 0.08);
}

.sidebar-item.active {
    background-color: var(--secondary);
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(0, 0, 0, 0.2);
}

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

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Main Content Area */
.app-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.app-header {
    height: var(--header-height);
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    flex-shrink: 0;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.main-content {
    flex-grow: 1;
    padding: 2rem;
    overflow-y: auto;
}

/* UI Components & Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--primary);
}

/* Grid Layouts */
.grid-cols-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.grid-cols-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Metrics Cards */
.metric-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 0.25rem;
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.metric-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--secondary);
    color: white;
}
.btn-primary:hover { background-color: var(--accent); }

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

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

.btn-success {
    background-color: var(--success);
    color: white;
}
.btn-success:hover { opacity: 0.9; }

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.5rem;
}

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

.table th {
    background-color: var(--background);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.table tr:hover td {
    background-color: rgba(241, 245, 249, 0.4);
}

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background-color: var(--success-light); color: var(--success); }
.badge-danger { background-color: var(--danger-light); color: var(--danger); }
.badge-warning { background-color: var(--warning-light); color: var(--warning); }
.badge-info { background-color: #eff6ff; color: #1d4ed8; }

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    background-color: var(--surface);
    color: var(--text);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* Modals */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background: var(--surface);
    border-radius: 0.5rem;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    transform: translateY(20px);
    transition: var(--transition);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.modal-backdrop.open .modal {
    transform: translateY(0);
}

.modal > form {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    margin-bottom: 0;
    flex: 1;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* Auth Pages styles */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--background);
    padding: 2rem;
}

.auth-card {
    background-color: var(--surface);
    padding: 2.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--border);
}

.auth-logo {
    display: block;
    margin: 0 auto 2rem;
    max-height: 60px;
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    border: 1px solid transparent;
}

.alert-danger {
    background-color: var(--danger-light);
    color: #b91c1c;
    border-color: #fee2e2;
}

.alert-success {
    background-color: var(--success-light);
    color: #047857;
    border-color: #d1fae5;
}

/* Notification Popover & Components */
.notif-btn:hover {
    background-color: rgba(15, 23, 42, 0.05);
}
.notif-item:hover {
    background-color: #f8fafc;
}
.notif-item.unread {
    background-color: rgba(59, 130, 246, 0.06); /* Soft blue tint */
}
.notif-item.unread:hover {
    background-color: rgba(59, 130, 246, 0.1);
}
.notif-dropdown-list::-webkit-scrollbar {
    width: 5px;
}
.notif-dropdown-list::-webkit-scrollbar-track {
    background: transparent;
}
.notif-dropdown-list::-webkit-scrollbar-thumb {
    background-color: #cbd5e1;
    border-radius: 999px;
}
.notif-dropdown-list::-webkit-scrollbar-thumb:hover {
    background-color: #94a3b8;
}

.hidden {
    display: none !important;
}

/* Autocomplete Suggestions Dropdown */
.autocomplete-container {
    position: relative;
    width: 100%;
}
.autocomplete-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    max-height: 200px;
    overflow-y: auto;
    margin-top: 4px;
}
.autocomplete-suggestion {
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    cursor: pointer;
    color: var(--text);
    transition: background-color 0.15s ease;
    text-align: left;
}
.autocomplete-suggestion:hover {
    background-color: var(--background);
}
.autocomplete-suggestion.no-results {
    color: var(--text-muted);
    cursor: default;
    font-style: italic;
}

/* Block buttons (e.g. for Login/Reset Pages) */
.btn-block {
    display: flex;
    width: 100%;
    background-color: var(--secondary);
    color: white;
}
.btn-block:hover {
    background-color: var(--accent);
}

/* Sidebar toggle menu & drawer responsiveness */
.sidebar-toggle-btn {
    display: none;
}

.sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(2px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

@media (max-width: 768px) {
    .sidebar-toggle-btn {
        display: flex !important;
        align-items: center;
        justify-content: center;
        background: none;
        border: none;
        padding: 6px;
        cursor: pointer;
        color: var(--primary);
        border-radius: 4px;
        width: 36px;
        height: 36px;
    }
    .sidebar-toggle-btn:hover {
        background-color: rgba(15, 23, 42, 0.05);
    }
    .app-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        z-index: 1000;
        transform: translateX(-100%);
        box-shadow: 5px 0 15px rgba(0,0,0,0.1);
    }
    .sidebar-open .app-sidebar {
        transform: translateX(0);
    }
    .sidebar-open .sidebar-backdrop {
        display: block;
        opacity: 1;
        pointer-events: auto;
    }
    .app-content {
        width: 100%;
    }
    .app-header {
        padding: 0 1rem;
    }
    .main-content {
        padding: 1rem;
    }
    
    /* Responsive grids */
    .grid-cols-2, .grid-cols-3 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.05rem;
    }
    .app-header {
        padding: 0 0.5rem;
        gap: 0.5rem;
    }
    .header-actions {
        gap: 0.5rem;
    }
}