/* Custom CSS for AHBB System Redirector */

/* Root Variables */
:root {
    --primary-color: #0066cc;
    --secondary-color: #28a745;
    --accent-color: #ff6b35;
    --dark-color: #2c3e50;
    --light-color: #f8f9fa;
    --muted-color: #6c757d;
    --white: #ffffff;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.2);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    opacity: 0;
    transition: opacity 0.5s ease;
}

body.loaded {
    opacity: 1;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
}

/* Header Styles */
.navbar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar-brand img {
    transition: var(--transition);
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.nav-link {
    font-weight: 500;
    color: var(--dark-color) !important;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.display-4 {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Search Container */
.search-container {
    max-width: 500px;
    margin: 0 auto;
}

.input-group-lg .form-control {
    border-radius: var(--border-radius);
    border: 2px solid rgba(0, 102, 204, 0.2);
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

.input-group-lg .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25);
    background: var(--white);
}

.input-group-text {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    border: 2px solid rgba(0, 102, 204, 0.2);
    border-right: none;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

/* Systems Section */
.systems-section {
    background: var(--white);
    position: relative;
    z-index: 1;
}

/* System Cards */
.system-card {
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
    position: relative;
}

.system-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.system-card:hover::before {
    transform: scaleX(1);
}

.system-card:hover {
    box-shadow: var(--shadow-heavy);
    border-color: rgba(0, 102, 204, 0.2);
}

.system-icon {
    position: relative;
    z-index: 1;
}

.system-icon i {
    transition: var(--transition);
}

.system-card:hover .system-icon i {
    transform: scale(1.1) rotate(5deg);
}

.card-title {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.card-text {
    font-size: 0.9rem;
    line-height: 1.5;
}

.badge {
    font-size: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 500;
}

.btn {
    border-radius: 50px;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: var(--transition);
    transform: translate(-50%, -50%);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Animation Classes */
.fade-in,
.fade-in-delay,
.fade-in-delay-2 {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--dark-color) 0%, #34495e 100%);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="footerPattern" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23ffffff" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23footerPattern)"/></svg>');
    pointer-events: none;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }
    
    .lead {
        font-size: 1.1rem;
    }
    
    .system-card {
        margin-bottom: 1.5rem;
    }
    
    .hero-section {
        padding: 3rem 0;
    }
    
    .systems-section {
        padding: 3rem 0;
    }
}

@media (max-width: 576px) {
    .display-4 {
        font-size: 2rem;
    }
    
    .input-group-lg .form-control {
        font-size: 1rem;
        padding: 0.75rem 1rem;
    }
    
    .system-card .card-body {
        padding: 1.5rem;
    }
    
    .navbar-brand img {
        height: 30px;
    }
}

/* Loading Animation */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Scroll Animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-up {
    animation: slideInUp 0.6s ease-out;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-color);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0052a3;
}

/* Focus Styles for Accessibility */
.btn:focus,
.form-control:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    footer,
    .search-container {
        display: none;
    }
    
    .system-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    body {
        background: white;
    }
}

