/* Hero Carousel Styles */
.hero-carousel {
    position: relative;
    height: 90vh;
    min-height: 600px;
    overflow: hidden;
    background: #000;
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

.carousel-slide img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(3, 54, 163, 0.75) 0%,
        rgba(1, 42, 94, 0.65) 50%,
        rgba(3, 54, 163, 0.75) 100%
    );
    z-index: 1;
}

.carousel-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    padding: 0 var(--spacing-lg);
    animation: fadeInUp 1s ease-out;
}

.carousel-badge {
    display: inline-block;
    background: var(--academic-gold);
    color: var(--academic-blue);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.carousel-content h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: bold;
    margin-bottom: var(--spacing-md);
    color: var(--white);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.carousel-content p {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    margin-bottom: var(--spacing-lg);
    color: var(--light-gold);
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    line-height: 1.6;
}

/* Navigation Arrows */
.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    background: rgba(255, 215, 0, 0.2);
    border: 2px solid var(--academic-gold);
    color: var(--academic-gold);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.5rem;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: var(--academic-gold);
    color: var(--academic-blue);
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
    left: 2rem;
}

.carousel-next {
    right: 2rem;
}

/* Dots Indicator */
.carousel-dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 1rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.dot:hover {
    background: rgba(255, 215, 0, 0.8);
    transform: scale(1.2);
}

.dot.active {
    background: var(--academic-gold);
    border-color: var(--white);
    transform: scale(1.3);
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-carousel {
        height: 70vh;
        min-height: 500px;
    }
    
    .carousel-content h2 {
        font-size: 1.8rem;
    }
    
    .carousel-content p {
        font-size: 1rem;
    }
    
    .carousel-prev,
    .carousel-next {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .carousel-prev {
        left: 1rem;
    }
    
    .carousel-next {
        right: 1rem;
    }
    
    .carousel-dots {
        bottom: 1rem;
    }
}

/* Old Hero Styles (kept for backward compatibility) */
.hero {
    position: relative;
    height: 90vh;
    min-height: 600px;
    background-image: url('../assets/library.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(3, 54, 163, 0.85) 0%,
        rgba(1, 42, 94, 0.75) 50%,
        rgba(3, 54, 163, 0.85) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    padding: 0 var(--spacing-lg);
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: bold;
    margin-bottom: var(--spacing-md);
    color: var(--academic-gold);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    letter-spacing: 1px;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-md);
    color: var(--white);
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    font-weight: 300;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-xl);
    color: var(--light-gray);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--academic-gold);
    color: var(--academic-blue);
    border-color: var(--academic-gold);
    box-shadow: 0 4px 15px rgba(255, 184, 0, 0.4);
}

.btn-primary:hover {
    background: var(--dark-gold);
    border-color: var(--dark-gold);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 184, 0, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--academic-blue);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.hero-scroll i {
    font-size: 2rem;
    color: var(--academic-gold);
    cursor: pointer;
    transition: all 0.3s ease;
}

.hero-scroll:hover i {
    color: var(--white);
    transform: scale(1.2);
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        height: 100vh;
        min-height: 500px;
    }
    
    .hero-content {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .hero-scroll {
        bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .hero-content {
        padding: 0 var(--spacing-xs);
    }
    
    .hero-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

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