/* Custom Styles for Pediatric Hematology Website */

/* Base Styles */
:root {
    --medical-blue: #2563eb;
    --medical-light: #dbeafe;
    --medical-dark: #1e40af;
    --medical-red: #dc2626;
    --medical-green: #059669;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

/* Custom Utilities */
.medical-gradient {
    background: linear-gradient(135deg, var(--medical-blue) 0%, var(--medical-dark) 100%);
}

/* Enhanced Card Hover Effects */
.condition-card {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.condition-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--medical-blue), transparent);
    transition: left 0.5s ease;
}

.condition-card:hover::before {
    left: 100%;
}

.condition-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* Enhanced Navigation */
.nav-link {
    position: relative;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--medical-blue);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Medical Icons */
.medical-icon {
    background: linear-gradient(135deg, var(--medical-blue), var(--medical-dark));
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    font-size: 20px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
}

.medical-icon:hover {
    transform: scale(1.1);
}

/* Statistics Animation */
.stat-card {
    transition: all 0.3s ease;
    cursor: default;
}

.stat-card:hover {
    transform: translateY(-3px);
}

/* Content Sections */
.content-section {
    padding: 4rem 0;
}

.content-section:nth-child(even) {
    background-color: #f8fafc;
}

/* Medical List Styling */
.medical-list {
    list-style: none;
    padding-left: 0;
}

.medical-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: #64748b;
}

.medical-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--medical-green);
    font-weight: bold;
}

/* Enhanced Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--medical-blue), var(--medical-dark));
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

.btn-secondary {
    background: transparent;
    color: var(--medical-blue);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: 2px solid var(--medical-blue);
}

.btn-secondary:hover {
    background: var(--medical-blue);
    color: white;
    transform: translateY(-2px);
}

/* Medical Alert Boxes */
.medical-alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin: 1rem 0;
    border-left: 4px solid;
}

.medical-alert.warning {
    background-color: #fef3c7;
    border-left-color: #f59e0b;
    color: #92400e;
}

.medical-alert.info {
    background-color: #dbeafe;
    border-left-color: var(--medical-blue);
    color: var(--medical-dark);
}

.medical-alert.danger {
    background-color: #fee2e2;
    border-left-color: var(--medical-red);
    color: #991b1b;
}

.medical-alert.success {
    background-color: #d1fae5;
    border-left-color: var(--medical-green);
    color: #065f46;
}

/* Loading Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Responsive Design Enhancements */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .condition-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .stat-grid {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .medical-gradient {
        background: #2563eb !important;
        -webkit-print-color-adjust: exact;
    }
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus Styles for Accessibility */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--medical-blue);
    outline-offset: 2px;
}

/* Skip Link for Screen Readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--medical-blue);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 6px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .condition-card {
        border: 2px solid #000;
    }
    
    .medical-alert {
        border: 2px solid;
    }
}