:root {
    --primary-color: #004080;
    --primary-dark: #002d5a;
    --secondary-color: #f9a825;
    --secondary-dark: #e69c00;
    --dark-color: #1e293b;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-600: #475569;
    --gray-800: #1e293b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border-radius: 12px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 64, 128, 0.1);
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar-brand img {
    transition: var(--transition);
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: 25px;
    transition: var(--transition);
}

    .navbar-nav .nav-link:hover {
        color: var(--white) !important;
        background: rgba(255, 255, 255, 0.1);
        transform: translateY(-2px);
    }

/* Hero Section */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 100px; /* ensure content is not hidden under navbar */
}

    .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 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,0 1000,1000"/></svg>');
        background-size: cover;
    }

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 64, 128, 0.1);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(45deg, var(--white), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 500px;
}

.hero-buttons .btn {
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-buttons .btn-primary {
    background: linear-gradient(45deg, var(--secondary-color), var(--secondary-dark));
    border: none;
    box-shadow: 0 8px 25px rgba(249, 168, 37, 0.3);
}

    .hero-buttons .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 35px rgba(249, 168, 37, 0.4);
    }

.hero-buttons .btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

    .hero-buttons .btn-outline-light:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: var(--white);
        transform: translateY(-3px);
    }

.hero-image {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 500px;
}

.floating-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    text-align: center;
    color: var(--white);
    animation: float 3s ease-in-out infinite;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

    .floating-card i {
        font-size: 4rem;
        margin-bottom: 1rem;
        color: var(--secondary-color);
    }

    .floating-card h5 {
        font-size: 1.5rem;
        font-weight: 600;
    }

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    cursor: pointer;
}

/* Features Section */
.features-section {
    padding: 6rem 0;
    background: var(--light-bg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-bottom: 3rem;
}

.feature-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    height: 100%;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
        transform: scaleX(0);
        transition: var(--transition);
    }

    .feature-card:hover::before {
        transform: scaleX(1);
    }

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

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

    .feature-icon::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: inherit;
        border-radius: 50%;
        transform: scale(0);
        transition: var(--transition);
    }

.feature-card:hover .feature-icon::before {
    transform: scale(1.2);
}

.feature-icon.academic {
    background: linear-gradient(45deg, #667eea, #764ba2);
}

.feature-icon.library {
    background: linear-gradient(45deg, #f093fb, #f5576c);
}

.feature-icon.it {
    background: linear-gradient(45deg, #4facfe, #00f2fe);
}

.feature-icon.student {
    background: linear-gradient(45deg, #43e97b, #38f9d7);
}

.feature-icon.financial {
    background: linear-gradient(45deg, #fa709a, #fee140);
}

.feature-icon.mobile {
    background: linear-gradient(45deg, #a8edea, #fed6e3);
}

.feature-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background: var(--white);
}

.about-content {
    padding-right: 2rem;
}

.about-text {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: 2rem;
}

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

    .stat-item h3 {
        font-size: 2.5rem;
        font-weight: 700;
        color: var(--primary-color);
        margin-bottom: 0.5rem;
    }

    .stat-item p {
        color: var(--gray-600);
        font-weight: 500;
    }

.about-image img {
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

    .about-image img:hover {
        transform: scale(1.02);
    }

/* Contact Section */
.contact-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    position: relative;
}

    .contact-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 1000 1000"><circle fill="rgba(255,255,255,0.03)" cx="200" cy="200" r="100"/><circle fill="rgba(255,255,255,0.03)" cx="800" cy="800" r="150"/></svg>');
    }

.contact-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    color: var(--white);
    transition: var(--transition);
    height: 100%;
}

    .contact-card:hover {
        transform: translateY(-5px);
        background: rgba(255, 255, 255, 0.15);
    }

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: var(--white);
}

.contact-card h5 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.contact-card p {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 2rem 0;
}

.social-links a {
    color: var(--white);
    font-size: 1.5rem;
    margin-left: 1rem;
    transition: var(--transition);
}

    .social-links a:hover {
        color: var(--secondary-color);
        transform: translateY(-2px);
    }

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

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }

    40% {
        transform: translateY(-10px) translateX(-50%);
    }

    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: 1rem;
    }

    .about-content {
        padding-right: 0;
        margin-bottom: 3rem;
    }

    .about-stats {
        justify-content: center;
        flex-wrap: wrap;
    }

    .stat-item {
        margin-bottom: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-stats {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Service Modal */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--box-shadow);
}

.modal-header {
    background: linear-gradient(45deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

    .modal-header .btn-close {
        filter: invert(1);
    }

.login-section,
.register-section {
    padding: 1rem;
}

.login-section {
    border-right: 1px solid var(--gray-200);
}

    .login-section h6,
    .register-section h6 {
        color: var(--dark-color);
        font-weight: 600;
        margin-bottom: 0.5rem;
    }

.form-control {
    border-radius: 10px;
    border: 1px solid var(--gray-200);
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

    .form-control:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 0.2rem rgba(0, 64, 128, 0.25);
    }


/* Loading Animation */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

    .loading-overlay.show {
        opacity: 1;
        visibility: visible;
    }

.loading-content {
    text-align: center;
    color: var(--white);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

    100% {
        transform: rotate(360deg);
    }
}
/* Help Links */
.btn-outline-warning, .btn-outline-info {
    border-radius: 8px;
    transition: all 0.3s ease;
}

    .btn-outline-warning:hover, .btn-outline-info:hover {
        transform: translateY(-1px);
    }