/* Blood Bank Donor Management System - Custom Styles */

:root {
    --primary-color: #dc3545;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white-color: #ffffff;
    --font-primary: 'Open Sans', sans-serif;
    --font-secondary: 'Roboto Condensed', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--dark-color);
}

/* Navigation Styles */
.navbar {
    background: rgba(0, 0, 0, 0.9) !important;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.95) !important;
    padding: 0.5rem 0;
}

.navbar-brand {
    font-size: 1.8rem;
    font-weight: 800;
    font-family: var(--font-secondary);
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
    margin: 0 0.5rem;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.nav-link.active {
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero-section {
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-slide {
    height: 100vh;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.slide-1 {
    background: linear-gradient(135deg, var(--primary-color) 0%, #8B0000 100%);
}

.slide-2 {
    background: linear-gradient(135deg, #8B0000 0%, var(--primary-color) 100%);
}

.slide-3 {
    background: linear-gradient(135deg, var(--primary-color) 0%, #B22222 100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    font-family: var(--font-secondary);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Carousel Controls */
.carousel-control-prev,
.carousel-control-next {
    width: 5%;
}

.carousel-indicators {
    bottom: 30px;
}

.carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

/* CTA Banner */
.cta-banner {
    background: var(--primary-color);
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-family: var(--font-secondary);
}

.title-divider {
    display: inline-block;
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Donor Cards */
.donor-card {
    background: var(--white-color);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
    margin-bottom: 30px;
}

.donor-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.donor-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), #ff6b6b);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.donor-image::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: shimmer 3s infinite;
}

.donor-info {
    padding: 1.5rem;
}

.donor-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.donor-details {
    margin-bottom: 1rem;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 0.25rem 0;
    font-size: 0.9rem;
}

.detail-label {
    font-weight: 500;
    color: var(--secondary-color);
}

.blood-group {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.8rem;
}

/* Blood Groups Section */
.blood-group-list li {
    padding: 0.75rem 0;
    font-size: 1.1rem;
    border-bottom: 1px solid #eee;
}

.blood-group-list li:last-child {
    border-bottom: none;
}

/* Statistics Section */
.stats-section {
    background: var(--primary-color);
}

.stat-item {
    padding: 2rem 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-family: var(--font-secondary);
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Forms */
.form-container {
    background: var(--white-color);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-top: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.form-control {
    border: 2px solid #eee;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-primary:hover {
    background: #c82333;
    border-color: #c82333;
    transform: translateY(-2px);
}

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

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Page Headers */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), #8B0000);
    color: white;
    padding: 6rem 0 4rem;
    margin-top: 70px;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: var(--font-secondary);
}

.breadcrumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.breadcrumb-item a {
    color: white;
    text-decoration: none;
}

.breadcrumb-item.active {
    color: rgba(255, 255, 255, 0.8);
}

/* Search Form */
.search-form {
    background: var(--white-color);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 3rem;
}

/* Alerts */
.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.alert-info {
    background: rgba(23, 162, 184, 0.1);
    color: var(--info-color);
    border-left: 4px solid var(--info-color);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
}

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

@keyframes shimmer {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes countUp {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Loading States */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.5rem 1.5rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .form-container {
        padding: 1.5rem;
    }
    
    .donor-card {
        margin-bottom: 20px;
    }
}

/* Utility Classes */
.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }

.shadow-sm { box-shadow: 0 2px 4px rgba(0,0,0,0.1) !important; }
.shadow { box-shadow: 0 4px 8px rgba(0,0,0,0.15) !important; }
.shadow-lg { box-shadow: 0 8px 16px rgba(0,0,0,0.2) !important; }

.rounded-lg { border-radius: 15px !important; }
.rounded-xl { border-radius: 20px !important; }

/* Print Styles */
@media print {
    .navbar, .footer, .btn {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        color: black;
    }
    
    .hero-section {
        height: auto;
        padding: 2rem 0;
    }
}