/* ========================================
   VICIdial Clone - Enhanced Layout CSS
   Complete Professional Call Center UI
   ======================================== */

/* ========== CSS VARIABLES ========== */
:root {
    /* Primary Brand Colors */
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-hover: #1e40af;
    /* Secondary & Accent Colors */
    --secondary-color: #06b6d4;
    --accent-color: #8b5cf6;
    /* Status Colors */
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    /* Neutral Colors */
    --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;
    /* Layout Dimensions */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --topbar-height: 65px;
    /* Shadows */
    --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 -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    /* Border Radius */
    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    --border-radius-2xl: 1rem;
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    /* Z-Index Layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ========== GLOBAL STYLES ========== */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--gray-800);
    background-color: var(--gray-50);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 4px;
}

    ::-webkit-scrollbar-thumb:hover {
        background: var(--gray-500);
    }

/* ========== LAYOUT STRUCTURE ========== */
.page {
    display: flex;
    min-height: 100vh;
    background-color: var(--gray-50);
    position: relative;
}

/* ========== SIDEBAR ========== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
    color: white;
    box-shadow: var(--shadow-xl);
    z-index: var(--z-fixed);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

    .sidebar.collapsed {
        width: var(--sidebar-collapsed-width);
    }

/* Sidebar Header */
.sidebar-header {
    height: var(--topbar-height);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(0, 0, 0, 0.1);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    transition: var(--transition-fast);
}

.brand-icon {
    font-size: 1.75rem;
    color: var(--secondary-color);
    margin-right: 0.75rem;
    transition: var(--transition-fast);
}

.brand-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025rem;
}

.sidebar.collapsed .brand-text {
    display: none;
}

.sidebar.collapsed .brand-icon {
    margin-right: 0;
    font-size: 2rem;
}

/* Sidebar Navigation */
.nav-scrollable {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem 0;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title,
.nav-category {
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.5rem;
}

.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .nav-category {
    display: none;
}

/* Navigation Links */
.nav-item {
    position: relative;
    margin: 0.125rem 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
}

    .nav-link:hover {
        background-color: rgba(255, 255, 255, 0.1);
        color: white;
        transform: translateX(2px);
    }

    .nav-link.active {
        background-color: rgba(255, 255, 255, 0.15);
        color: white;
    }

        .nav-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 60%;
            background-color: var(--secondary-color);
            border-radius: 0 2px 2px 0;
        }

.nav-icon {
    font-size: 1.125rem;
    margin-right: 0.75rem;
    min-width: 1.125rem;
    text-align: center;
    opacity: 0.9;
}

.nav-text {
    flex: 1;
}

.nav-badge {
    margin-left: auto;
    background-color: var(--danger-color);
    color: white;
    font-size: 0.625rem;
    padding: 0.125rem 0.375rem;
    border-radius: 10px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

/* Expandable Submenu */
.nav-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.nav-item.expanded .nav-submenu {
    max-height: 500px;
}

.nav-sublink {
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.8125rem;
    transition: var(--transition-fast);
}

    .nav-sublink:hover {
        color: rgba(255, 255, 255, 0.95);
        background-color: rgba(255, 255, 255, 0.05);
    }

.nav-expand-icon {
    margin-left: auto;
    font-size: 0.75rem;
    transition: transform 0.3s ease;
}

.nav-item.expanded .nav-expand-icon {
    transform: rotate(90deg);
}

/* Collapsed Sidebar Adjustments */
.sidebar.collapsed .nav-link {
    justify-content: center;
    padding: 0.75rem;
}

.sidebar.collapsed .nav-icon {
    margin-right: 0;
    font-size: 1.25rem;
}

.sidebar.collapsed .nav-text,
.sidebar.collapsed .nav-badge,
.sidebar.collapsed .nav-expand-icon,
.sidebar.collapsed .nav-submenu {
    display: none;
}

/* Sidebar Footer */
.sidebar-footer,
.nav-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(0, 0, 0, 0.1);
    margin-top: auto;
}

.server-time {
    font-size: 0.75rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

.sidebar.collapsed .server-time {
    display: none;
}

/* ========== MAIN CONTENT ========== */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: var(--transition);
    background-color: var(--gray-50);
}

.sidebar.collapsed ~ .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

/* ========== TOP BAR ========== */
.top-bar {
    background-color: white;
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    border-bottom: 1px solid var(--gray-200);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-700);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

    .sidebar-toggle:hover {
        background-color: var(--gray-100);
        color: var(--primary-color);
    }

/* Breadcrumb */
.breadcrumb {
    margin: 0;
    padding: 0;
    background: none;
    font-size: 0.875rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--gray-400);
}

.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
}

    .breadcrumb-item a:hover {
        color: var(--primary-dark);
        text-decoration: underline;
    }

/* Top Bar Right */
.top-bar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Notification Button */
.notification-btn,
.topbar-btn {
    position: relative;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--gray-700);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

    .notification-btn:hover,
    .topbar-btn:hover {
        background-color: var(--gray-100);
        color: var(--primary-color);
    }

.notification-badge {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--danger-color);
    color: white;
    font-size: 0.625rem;
    font-weight: 600;
    padding: 0.125rem 0.375rem;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* Notification Dropdown */
.notification-dropdown {
    position: relative;
}

.notification-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    width: 380px;
    max-height: 480px;
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideDown 0.3s ease;
    z-index: var(--z-dropdown);
}

.notification-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--gray-200);
}

.notification-list {
    flex: 1;
    overflow-y: auto;
    max-height: 350px;
}

.notification-item {
    display: flex;
    align-items: flex-start;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition-fast);
    cursor: pointer;
}

    .notification-item:hover {
        background-color: var(--gray-50);
    }

    .notification-item.unread {
        background-color: rgba(37, 99, 235, 0.05);
    }

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

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: white;
    border: 1px solid var(--gray-300);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
}

    .user-menu-btn:hover {
        background-color: var(--gray-50);
        border-color: var(--primary-color);
    }

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
}

.user-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    width: 280px;
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: slideDown 0.3s ease;
    z-index: var(--z-dropdown);
}

.user-menu-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.user-menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--gray-800);
    text-decoration: none;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-fast);
}

    .user-menu-item:hover {
        background-color: var(--gray-50);
        color: var(--primary-color);
    }

/* ========== CONTENT AREA ========== */
.content {
    flex: 1;
    padding: 1.5rem;
}

.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
}

/* Page Header */
.page-header {
    margin-bottom: 1.5rem;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ========== CARDS ========== */
.card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    margin-bottom: 1.5rem;
    transition: var(--transition-fast);
}

    .card:hover {
        box-shadow: var(--shadow-md);
        border-color: var(--gray-300);
    }

.card-header {
    padding: 1.25rem;
    border-bottom: 1px solid var(--gray-200);
    background-color: var(--gray-50);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

.card-body {
    padding: 1.25rem;
}

/* ========== CALL CENTER SPECIFIC ========== */

/* Agent Status Bar */
.agent-status-bar {
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    border: 1px solid var(--gray-200);
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 500;
    font-size: 0.875rem;
}

    .status-indicator.available {
        background-color: rgba(16, 185, 129, 0.1);
        color: var(--success-color);
    }

    .status-indicator.on-call {
        background-color: rgba(59, 130, 246, 0.1);
        color: var(--info-color);
    }

    .status-indicator.break {
        background-color: rgba(245, 158, 11, 0.1);
        color: var(--warning-color);
    }

    .status-indicator.offline {
        background-color: rgba(107, 114, 128, 0.1);
        color: var(--gray-600);
    }

/* Dialer Panel */
.dialer-panel {
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.dialer-header {
    background-color: var(--primary-color);
    color: white;
    padding: 1.25rem;
}

.dialer-body {
    padding: 1.5rem;
}

.phone-display {
    background-color: var(--gray-100);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    padding: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1.5rem;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    letter-spacing: 0.1rem;
}

.dial-pad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.dial-btn {
    aspect-ratio: 1;
    border: 1px solid var(--gray-300);
    background-color: white;
    border-radius: var(--border-radius);
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

    .dial-btn:hover {
        background-color: var(--gray-50);
        border-color: var(--primary-color);
        transform: scale(1.05);
    }

    .dial-btn:active {
        transform: scale(0.95);
    }

/* Call Actions */
.call-actions {
    display: flex;
    gap: 1rem;
}

.call-btn {
    flex: 1;
    padding: 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
}

.call-btn-primary {
    background-color: var(--success-color);
    color: white;
}

    .call-btn-primary:hover {
        background-color: #059669;
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

.call-btn-danger {
    background-color: var(--danger-color);
    color: white;
}

    .call-btn-danger:hover {
        background-color: #dc2626;
    }

/* Campaign Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: var(--transition-fast);
}

    .stat-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

    .stat-icon.success {
        background-color: rgba(16, 185, 129, 0.1);
        color: var(--success-color);
    }

    .stat-icon.info {
        background-color: rgba(59, 130, 246, 0.1);
        color: var(--info-color);
    }

    .stat-icon.warning {
        background-color: rgba(245, 158, 11, 0.1);
        color: var(--warning-color);
    }

    .stat-icon.danger {
        background-color: rgba(239, 68, 68, 0.1);
        color: var(--danger-color);
    }

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Agent Monitor Grid */
.agent-monitor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.agent-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 1.25rem;
    border-left: 4px solid var(--gray-300);
    transition: var(--transition-fast);
}

    .agent-card.available {
        border-left-color: var(--success-color);
    }

    .agent-card.on-call {
        border-left-color: var(--info-color);
        background-color: rgba(59, 130, 246, 0.02);
    }

    .agent-card.break {
        border-left-color: var(--warning-color);
    }

/* Footer */
.main-footer {
    background-color: white;
    border-top: 1px solid var(--gray-200);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

    .footer-links a {
        color: var(--gray-600);
        text-decoration: none;
    }

        .footer-links a:hover {
            color: var(--primary-color);
        }

/* ========== ANIMATIONS ========== */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-10px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

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

    .main-content {
        margin-left: 0;
    }

    .sidebar.collapsed ~ .main-content {
        margin-left: 0;
    }

    .top-bar {
        padding: 0 1rem;
    }

    .breadcrumb {
        display: none;
    }

    .notification-menu {
        width: 320px;
        right: -10px;
    }

    .user-menu {
        width: 240px;
        right: -10px;
    }

    .content {
        padding: 1rem;
    }

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

    .agent-monitor-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        display: none;
    }
}

/* ========== UTILITY CLASSES ========== */
.text-primary {
    color: var(--primary-color) !important;
}

.text-success {
    color: var(--success-color) !important;
}

.text-danger {
    color: var(--danger-color) !important;
}

.text-warning {
    color: var(--warning-color) !important;
}

.text-info {
    color: var(--info-color) !important;
}

.text-muted {
    color: var(--gray-600) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.bg-success {
    background-color: var(--success-color) !important;
}

.bg-danger {
    background-color: var(--danger-color) !important;
}

.bg-warning {
    background-color: var(--warning-color) !important;
}

.bg-info {
    background-color: var(--info-color) !important;
}

.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow-md {
    box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}

.shadow-xl {
    box-shadow: var(--shadow-xl) !important;
}

/* Loading States */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

.loading-spinner {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: var(--z-tooltip);
}

/* Accessibility */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus Styles */
:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus,
.btn:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}