/* ===================================
   🎨 CSS Variables & Reset
   =================================== */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    /* Background */
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-input: #0f172a;

    /* Text */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Border */
    --border: #334155;
    --border-light: #475569;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ===================================
   📱 Header
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(30, 41, 59, 0.95) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-md) var(--spacing-lg);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    font-size: 1.75rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.25rem;
    transition: all var(--transition-normal);
}

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

.header-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-full);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
    }

    50% {
        opacity: 0.8;
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
    }
}

.status-text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--success);
}

/* ===================================
   🔀 Tab Navigation
   =================================== */
.tab-nav {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    z-index: 99;
    display: flex;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-xs) var(--spacing-sm);
    gap: var(--spacing-xs);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-btn {
    flex: 1;
    min-width: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

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

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.tab-icon {
    font-size: 1.1rem;
}

.tab-text {
    font-size: 0.65rem;
    font-weight: 500;
}

/* ===================================
   📋 Main Content
   =================================== */
.main-content {
    padding-top: 120px;
    padding-bottom: var(--spacing-xl);
    min-height: 100vh;
}

.tab-content {
    display: none;
    padding: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

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

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.section-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-tools {
    display: flex;
    gap: var(--spacing-sm);
}

.refresh-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 1rem;
}

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

/* ===================================
   🔍 Filter Bar
   =================================== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.filter-input,
.filter-select {
    flex: 1;
    min-width: 150px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.filter-input:focus,
.filter-select:focus {
    outline: none;
    border-color: var(--primary);
}

/* ===================================
   📞 Call Cards
   =================================== */
.calls-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.call-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-sm);
    align-items: center;
}

.call-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
    transform: translateX(3px);
}

.call-card.new {
    animation: slideInNew 0.5s ease;
    border-left: 3px solid var(--success);
}

@keyframes slideInNew {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

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

.call-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.call-phone {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.call-summary {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.call-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.call-time {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.call-score {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.call-score.high {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.call-score.medium {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.call-score.low {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.call-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.action-btn {
    padding: 4px 8px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* ===================================
   💰 Price Table (Excel Style)
   =================================== */
.bulk-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    flex-wrap: wrap;
}

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

.bulk-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.bulk-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

.bulk-btn.custom {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.price-table-container {
    overflow-x: auto;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.price-table th {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-dark);
    color: var(--text-secondary);
    font-weight: 600;
    text-align: left;
    border-bottom: 2px solid var(--border);
    position: sticky;
    top: 0;
}

.price-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

.price-table tr:hover td {
    background: var(--bg-card-hover);
}

.price-table tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.02);
}

.price-cell {
    font-weight: 700;
    color: var(--success);
    font-size: 0.9rem;
}

.price-edit-btn {
    padding: 4px 10px;
    background: var(--warning);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 0.7rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.price-edit-btn:hover {
    transform: scale(1.1);
}

.loading-cell {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-xl) !important;
}

/* ===================================
   💬 WhatsApp Section
   =================================== */
.whatsapp-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-md);
    height: calc(100vh - 250px);
    min-height: 400px;
}

.chat-list {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    overflow-y: auto;
}

.chat-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chat-item:hover,
.chat-item.active {
    background: var(--bg-card-hover);
}

.chat-item.active {
    border-left: 3px solid var(--primary);
}

.chat-item-phone {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.chat-item-preview {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-item-time {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.chat-messages {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    overflow-y: auto;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.chat-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
}

.chat-placeholder-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.message {
    max-width: 70%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.message.incoming {
    align-self: flex-start;
    background: var(--bg-dark);
    border: 1px solid var(--border);
}

.message.outgoing {
    align-self: flex-end;
    background: var(--primary);
    color: white;
}

.message-time {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.chat-input-container {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.chat-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.chat-send-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--success);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chat-send-btn:hover {
    background: #059669;
}

/* ===================================
   📊 Reports Section
   =================================== */
.report-filters {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.date-range {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
}

.date-range label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.date-range input {
    padding: var(--spacing-sm);
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-light);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.chart-box {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: var(--spacing-lg);
}

.chart-box h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.report-table-container {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: var(--spacing-md);
    overflow-x: auto;
}

.report-table-container h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.report-table th,
.report-table td {
    padding: var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.report-table th {
    background: var(--bg-dark);
    font-weight: 600;
}

/* ===================================
   🔲 Modal
   =================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 200;
    display: none;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.audio-modal {
    max-width: 600px;
}

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

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: white;
}

.modal-body {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
}

.audio-transcript {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-dark);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--text-secondary);
    max-height: 200px;
    overflow-y: auto;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
}

/* ===================================
   🔔 Toast Notifications
   =================================== */
.toast-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    min-width: 280px;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--danger);
}

.toast.info {
    border-color: var(--primary);
}

.toast-icon {
    font-size: 1.25rem;
}

.toast-message {
    font-size: 0.875rem;
    color: var(--text-primary);
}

/* ===================================
   ⏳ Loading & Empty States
   =================================== */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

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

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* Customers List */
.customers-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.customer-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.customer-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

/* ===================================
   📱 Responsive
   =================================== */
@media (max-width: 768px) {
    .whatsapp-container {
        grid-template-columns: 1fr;
        height: auto;
    }

    .chat-list {
        max-height: 200px;
    }

    .chat-messages {
        min-height: 300px;
    }

    .stats-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .charts-container {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   📍 Region Based Prices
   =================================== */
.region-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.region-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.region-header {
    padding: var(--spacing-md);
    background: var(--bg-card);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid transparent;
}

.region-header:hover {
    background: var(--bg-card-hover);
}

.region-item.active .region-header {
    border-bottom-color: var(--border);
    background: var(--bg-card-hover);
    color: var(--primary);
}

.region-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: var(--bg-dark);
}

.region-item.active .region-content {
    max-height: 2000px;
    transition: max-height 0.5s ease-in;
}

.region-arrow {
    transition: transform 0.3s ease;
}

.region-item.active .region-arrow {
    transform: rotate(180deg);
}

/* ===================================
   🔐 Login Screen
   =================================== */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-dark);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.login-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    animation: bounce 2s infinite;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.login-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.app-container {
    display: none;
    /* Login olunca 'block' olacak */
}