/* Theme Variable Declarations */
:root[data-theme="light"] {
    --primary: #4F46E5; /* Indigo-600 */
    --primary-hover: #4338CA;
    --accent: #10B981; /* Emerald-500 */
    --bg-app: #F8FAFC;
    --bg-card: rgba(255, 255, 255, 0.75);
    --border-color: rgba(226, 232, 240, 0.8);
    --text-main: #0F172A;
    --text-muted: #64748B;
    --danger: #EF4444;
    --info: #3B82F6;
    --success-bg: #E6F4EA;
    --success-text: #137333;
    --danger-bg: #FCE8E6;
    --danger-text: #C5221F;
    --info-bg: #E8F0FE;
    --info-text: #1A73E8;
    --warning-bg: #FEF7E0;
    --warning-text: #B06000;
    --sidebar-bg: #0F172A;
    --sidebar-text: #94A3B8;
    --sidebar-active-text: #ffffff;
    --sidebar-active-bg: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 4px 30px rgba(0, 0, 0, 0.03), 0 1px 3px rgba(0, 0, 0, 0.02);
    --backdrop-blur: blur(12px);
    --input-bg: #ffffff;
}

:root[data-theme="dark"] {
    --primary: #6366F1; /* Indigo-500 */
    --primary-hover: #4F46E5;
    --accent: #10B981;
    --bg-app: #090D16;
    --bg-card: rgba(21, 31, 50, 0.7);
    --border-color: rgba(30, 41, 59, 0.6);
    --text-main: #F1F5F9;
    --text-muted: #94A3B8;
    --danger: #F87171;
    --info: #60A5FA;
    --success-bg: rgba(16, 185, 129, 0.15);
    --success-text: #34D399;
    --danger-bg: rgba(239, 68, 68, 0.15);
    --danger-text: #F87171;
    --info-bg: rgba(59, 130, 246, 0.15);
    --info-text: #60A5FA;
    --warning-bg: rgba(245, 158, 11, 0.15);
    --warning-text: #FBBF24;
    --sidebar-bg: #080D1A;
    --sidebar-text: #64748B;
    --sidebar-active-text: #F8FAFC;
    --sidebar-active-bg: rgba(255, 255, 255, 0.05);
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --backdrop-blur: blur(16px);
    --input-bg: #151F30;
}

/* Global Reset & Box Sizing */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-app);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s, color 0.3s;
}

/* Layout Framework */
.admin-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    border-right: 1px solid var(--border-color);
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-main);
}

.logo-icon-svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
}

.mobile-close {
    display: none;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}

.sidebar-menu {
    flex-grow: 1;
    padding: 20px 10px;
}

.sidebar-menu ul {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 4px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: 10px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.sidebar-menu a:hover {
    color: var(--sidebar-active-text);
    background-color: rgba(255, 255, 255, 0.02);
}

.sidebar-menu a.active {
    background-color: var(--sidebar-active-bg);
    color: var(--sidebar-active-text);
    font-weight: 600;
}

.menu-icon {
    width: 18px;
    height: 18px;
}

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

.btn-logout {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--danger);
    text-decoration: none;
    font-weight: 600;
    border-radius: 10px;
    transition: background 0.2s;
}

.btn-logout:hover {
    background: rgba(239, 68, 68, 0.1);
}

/* Main Body & Navbar */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    height: 100vh;
    overflow: hidden;
}

.top-nav {
    height: 70px;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 90;
    backdrop-filter: blur(8px);
    background-color: rgba(255, 255, 255, 0.8);
}

:root[data-theme="dark"] .top-nav {
    background-color: rgba(21, 31, 50, 0.8);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    justify-content: space-between;
    width: 20px;
    height: 14px;
    cursor: pointer;
}

.mobile-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--text-main);
    border-radius: 2px;
}

.page-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

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

.admin-profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(18, 140, 126, 0.2);
}

.admin-name {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Content Container */
.content-wrapper {
    padding: 30px;
    flex-grow: 1;
    overflow-y: auto;
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Base Cards */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.card-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.card-body {
    padding: 24px;
}

.p-0 { padding: 0 !important; }
.mb-4 { margin-bottom: 24px !important; }
.mb-3 { margin-bottom: 16px !important; }
.mt-3 { margin-top: 16px !important; }
.mt-2 { margin-top: 8px !important; }
.mb-2 { margin-bottom: 8px !important; }
.max-300 { max-width: 300px; }
.max-200 { max-width: 200px; }
.max-150 { max-width: 150px; }

/* Grid Layouts */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 24px;
}

.dashboard-details {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 24px;
}

@media (max-width: 1024px) {
    .grid-2,
    .dashboard-details {
        grid-template-columns: 1fr;
    }
}

/* Stat Cards */
.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--card-shadow);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sent-icon { background: rgba(34, 197, 94, 0.1); color: #22C55E; }
.today-icon { background: rgba(59, 130, 246, 0.1); color: #3B82F6; }
.contacts-icon { background: rgba(168, 85, 247, 0.1); color: #A855F7; }
.wa-icon { background: rgba(234, 179, 8, 0.1); color: #EAB308; }

.stat-details h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 4px;
    letter-spacing: -0.02em;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(18, 140, 126, 0.25);
}

.btn-secondary {
    background-color: var(--sidebar-active-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--border-color);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background-color: var(--border-color);
}

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

.btn-danger:hover {
    opacity: 0.9;
}

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

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.flex-start {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.flex-column-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.gap-2 { gap: 8px; }
.gap-4 { gap: 24px; }

/* Forms & Controls */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

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

.form-control {
    width: 100%;
    padding: 10px 14px;
    background-color: var(--input-bg);
    border: 2px solid var(--border-color);
    color: var(--text-main);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
}

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

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 6px;
}

.badge-sent { background-color: var(--success-bg); color: var(--success-text); }
.badge-failed { background-color: var(--danger-bg); color: var(--danger-text); }
.badge-pending { background-color: var(--warning-bg); color: var(--warning-text); }
.badge-info { background-color: var(--info-bg); color: var(--info-text); cursor: pointer; }

/* Connection Status Badges */
.badge-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-status.connected {
    background-color: var(--success-bg);
    color: var(--success-text);
}
.badge-status.connected .indicator-dot {
    background-color: #22C55E;
}

.badge-status.disconnected {
    background-color: var(--danger-bg);
    color: var(--danger-text);
}
.badge-status.disconnected .indicator-dot {
    background-color: var(--danger);
}

.badge-status.reconnecting,
.badge-status.initializing {
    background-color: var(--warning-bg);
    color: var(--warning-text);
}
.badge-status.reconnecting .indicator-dot,
.badge-status.initializing .indicator-dot {
    background-color: #ecc94b;
    animation: pulse 1.2s infinite;
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

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

.max-h-400 { max-height: 400px; }
.overflow-y { overflow-y: auto; }
.max-h-200 { max-height: 200px; }

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

.table th,
.table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    background-color: rgba(0, 0, 0, 0.01);
}

.table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.015);
}

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-out;
}

.modal.hide {
    display: none;
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 100%;
    max-width: 520px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: scaleUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scaleUp {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Alert styles */
.alert-info {
    background-color: var(--info-bg);
    color: var(--info-text);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    line-height: 1.4;
}

.alert-info ul,
.alert-info ol {
    margin-left: 20px;
    margin-top: 5px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: background 0.2s;
}

.theme-toggle-btn:hover {
    background-color: var(--border-color);
}

:root[data-theme="light"] .dark-icon { display: none; }
:root[data-theme="dark"] .light-icon { display: none; }

/* Loader overlay */
.loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.loader-container.hide {
    display: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s infinite linear;
}

.loading-spinner {
    display: inline-block;
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s infinite linear;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toast System */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-card);
    border-left: 4px solid var(--primary);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    color: var(--text-main);
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    min-width: 260px;
    animation: slideIn 0.3s forwards cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.toast.toast-success { border-left-color: #22C55E; }
.toast.toast-danger { border-left-color: var(--danger); }
.toast.toast-info { border-left-color: var(--info); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast-close {
    cursor: pointer;
    opacity: 0.6;
    font-size: 1rem;
    margin-left: 10px;
}

.toast-close:hover {
    opacity: 1;
}

/* QR Code styling */
.qr-box {
    width: 260px;
    height: 260px;
    background-color: #ffffff;
    padding: 10px;
}

.qr-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Pagination controls styling */
.pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
}

.page-link {
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
}

.page-link:hover {
    background: var(--border-color);
}

.page-link.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

/* Variable selection styling */
.variable-helper {
    margin-top: 12px;
    background: rgba(0, 0, 0, 0.02);
    padding: 10px;
    border-radius: 8px;
}

.cursor-pointer {
    cursor: pointer;
}

.d-block { display: block; }

/* Quick Contacts List Box */
.quick-contacts-list {
    max-height: 250px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.quick-contact-item {
    padding: 12px 14px;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
    font-size: 0.9rem;
    font-weight: 600;
}

.quick-contact-item:hover {
    transform: translateX(4px);
    border-color: var(--primary);
}

.quick-contact-item span {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Bulk messaging settings and progress bar */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.01);
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(37, 211, 102, 0.02);
}

.upload-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 10px;
    color: var(--text-muted);
}

.upload-label {
    cursor: pointer;
}

.hide { display: none !important; }

.progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--primary);
    width: 0%;
    transition: width 0.3s;
}

/* Mobile responsive menu */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        box-shadow: 5px 0 15px rgba(0,0,0,0.1);
    }
    
    .sidebar.open {
        left: 0;
    }

    .mobile-close {
        display: block;
    }

    .mobile-toggle {
        display: flex;
    }

    .top-nav {
        padding: 0 15px;
    }

    .content-wrapper {
        padding: 15px;
    }

    .page-title {
        font-size: 1.15rem;
    }
    
    .admin-name {
        display: none;
    }
}

/* Tab Layouts */
.tabs-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tab-headers {
    display: flex;
    gap: 8px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.tab-btn:hover {
    color: var(--text-main);
    background-color: var(--sidebar-active-bg);
}

.tab-btn.active {
    color: #ffffff;
    background-color: var(--primary);
    box-shadow: 0 4px 12px rgba(18, 140, 126, 0.2);
}