/* ==================== GLOBAL STYLES ==================== */

:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --purple-color: #9b59b6;
    --dark-color: #2c3e50;
    --light-bg: #f8f9fa;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
    --card-radius: 16px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    overflow-x: hidden;
}

.text-center {
    text-align: center;
}

h1, h2, h3 { 
    letter-spacing: .2px; 
}

/* ==================== LANDING PAGE STYLES ==================== */

.landing-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0;
    min-height: 70vh;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.landing-title {
    color: white !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.landing-subtitle {
    color: rgba(255, 255, 255, 0.95) !important;
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

/* Apply animations only to landing page elements */
.landing-page .hero-content {
    animation: fadeInUp 0.8s ease-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.landing-page .landing-title {
    animation: fadeInDown 0.6s ease-out;
}

.landing-page .landing-subtitle {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.landing-btn-primary {
    background: white !important;
    color: #667eea !important;
    border: none !important;
    font-weight: 600 !important;
    transition: var(--transition);
}

.landing-page .landing-btn-primary {
    animation: fadeInUp 1s ease-out 0.4s both;
}

.landing-btn-primary:hover {
    transform: translateY(-3px) !important;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3) !important;
    background: #f8f9fa !important;
    color: #667eea !important;
}

.landing-btn-primary:active,
.landing-btn-primary:focus {
    color: #667eea !important;
}

.landing-btn-secondary {
    border: 2px solid white !important;
    color: white !important;
    background: transparent !important;
    font-weight: 600;
    transition: var(--transition);
}

.landing-page .landing-btn-secondary {
    animation: fadeInUp 1s ease-out 0.5s both;
}

.landing-btn-secondary:hover {
    background: white !important;
    color: #667eea !important;
    transform: translateY(-3px);
}

.features-section {
    background: white;
    padding: 5rem 0;
}

.features-section h2 {
    color: var(--dark-color);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.feature-card {
    border: none !important;
    border-radius: var(--border-radius) !important;
    transition: var(--transition);
    height: 100%;
    box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg) !important;
}

.feature-card .card-title {
    color: var(--dark-color);
    font-weight: 600;
}

.stats-section {
    background: var(--light-bg);
    padding: 4rem 0;
}

.stat-item {
    padding: 2rem;
    transition: var(--transition);
}

.stat-item:hover {
    transform: scale(1.05);
}

.stat-item h2 {
    color: var(--dark-color);
    font-size: 2.5rem;
    margin: 0.5rem 0;
}

.footer-section {
    background: white;
    border-top: 1px solid #e0e0e0;
}

/* ==================== DASHBOARD STYLES ==================== */

.dashboard-page {
    background: var(--light-bg);
    min-height: 100vh;
}

/* KPI Cards */
.kpi-card {
    border: none !important;
    border-radius: var(--border-radius) !important;
    transition: var(--transition);
    background: white;
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg) !important;
}

.kpi-icon {
    font-size: 3rem !important;
    margin-bottom: 1rem;
}

.kpi-value {
    font-size: 2.5rem !important;
    font-weight: 700 !important;
    color: var(--dark-color) !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Responsive KPI values */
@media (max-width: 1400px) {
    .kpi-value {
        font-size: 2.2rem !important;
    }
}

@media (max-width: 992px) {
    .kpi-value {
        font-size: 2rem !important;
    }
}

@media (max-width: 576px) {
    .kpi-value {
        font-size: 1.8rem !important;
    }
}

.kpi-title {
    font-size: 0.95rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Special styling for text-based KPI (diagnosis) */
#kpi-top-diagnosis {
    font-size: 1.9rem !important;
    font-weight: 700 !important;
    line-height: 1.6;
    white-space: normal !important;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

@media (max-width: 1400px) {
    #kpi-top-diagnosis {
        font-size: 1.2rem !important;
    }
}

@media (max-width: 992px) {
    #kpi-top-diagnosis {
        font-size: 1.1rem !important;
    }
}

@media (max-width: 576px) {
    #kpi-top-diagnosis {
        font-size: 1rem !important;
    }
}

/* Chart Cards */
.chart-card {
    border: none !important;
    border-radius: var(--border-radius) !important;
    overflow: hidden;
    background: white;
    transition: var(--transition);
    box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.chart-card:hover {
    box-shadow: var(--shadow-lg) !important;
    transform: translateY(-2px);
}

.chart-card .card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    font-weight: 600;
    border-bottom: none !important;
    padding: 1rem 1.5rem;
}

/* Filters Card */
.card-header.bg-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    border: none !important;
}

/* Generic Card Styles */
.card {
    border: none !important;
    border-radius: var(--card-radius) !important;
    box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.card:hover {
    transform: translateY(-2px);
    transition: transform .15s ease-in-out;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    border: none !important;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-outline-secondary:hover {
    transform: translateY(-2px);
}

/* Sticky Filters */
.sticky-top {
    position: sticky;
    z-index: 1020;
}

/* Fix filter sidebar positioning to prevent overlap with navbar */
.filters-sidebar.sticky-top {
    top: 80px !important; /* Add space below navbar */
    z-index: 1010 !important; /* Below navbar but above content */
}

/* Ensure navbar always stays above filters */
.navbar.sticky-top {
    z-index: 1030 !important;
}

/* Dropdowns */
.Select-control,
.dropdown {
    border-radius: 8px !important;
    border: 1px solid #ddd !important;
    transition: var(--transition);
}

.Select-control:hover,
.dropdown:hover {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Date Picker */
.DateInput {
    border-radius: 8px !important;
}

.DateInput_input {
    border-radius: 8px !important;
    border: 1px solid #ddd !important;
}

/* Loading Spinner */
._dash-loading-callback {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.dash-spinner {
    margin: 24px auto;
}

/* Plotly Chart Overrides */
.js-plotly-plot {
    border-radius: 8px;
}

/* Navbar */
.navbar {
    box-shadow: var(--shadow);
    z-index: 1030 !important; /* Ensure navbar is always on top */
}

.navbar-brand {
    font-size: 1.3rem;
    font-weight: 600;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .landing-title {
        font-size: 2.5rem !important;
    }
    
    .landing-subtitle {
        font-size: 1.1rem;
    }
    
    .landing-btn-primary,
    .landing-btn-secondary {
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .hero-section {
        padding: 3rem 0;
    }
    
    .features-section h2 {
        font-size: 2rem;
    }
    
    .kpi-value {
        font-size: 2rem !important;
    }
}

/* ==================== ANIMATIONS ==================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

/* Card transitions */
.card {
    transition: var(--transition);
}

/* Icon animations */
.bi:hover {
    animation: pulse 0.5s ease-in-out;
}

/* ==================== REACTIVE NAVBAR STYLES ==================== */

/* Navbar hover effects */
.navbar-brand-hover:hover {
    opacity: 0.85 !important;
}

#navbar-icon {
    animation: pulse-icon 2s infinite;
}

@keyframes pulse-icon {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Button hover effects */
.btn-outline-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2) !important;
}

/* Smooth transitions for all navbar elements */
.navbar * {
    transition: all 0.3s ease;
}

/* Dropdown menu styling */
.dropdown-menu {
    border-radius: 12px !important;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2) !important;
    border: none !important;
    margin-top: 8px !important;
    animation: slideDown 0.3s ease;
}

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

.dropdown-item {
    border-radius: 8px !important;
    margin: 4px 8px !important;
    transition: all 0.2s ease !important;
}

.dropdown-item:hover {
    background-color: #f8f9fa !important;
    transform: translateX(4px) !important;
}

.dropdown-item.active {
    background-color: #007bff !important;
    font-weight: bold !important;
}

/* Responsive navbar fixes */
@media (max-width: 991px) {
    .navbar {
        padding: 0.75rem 1rem !important;
    }
    
    .navbar-brand {
        font-size: 0.9rem !important;
    }
}

/* Sticky navbar effect */
.sticky-top {
    position: sticky;
    top: 0;
    z-index: 1020;
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Navbar shadow on scroll */
.navbar.shadow-sm {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15) !important;
}

/* Active state for navbar items */
.nav-link.active {
    font-weight: bold;
    border-bottom: 3px solid white;
}