:root {
    --primary: #C0392B;
    --secondary: #2C3E50;
    --accent: #E67E22;
    --light: #F8F9FA;
    --dark: #1A1A1A;
    --glass: rgba(255, 255, 255, 0.95);
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

body {
    font-family: 'Outfit', sans-serif;
    color: var(--dark);
    line-height: 1.8;
    background-color: #fff;
}

/* Typography Improvements */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
}

.leading-relaxed {
    line-height: 2 !important;
}

/* Navbar Tuning */
.navbar-brand img {
    transition: var(--transition);
}

.nav-link {
    color: var(--secondary) !important;
    transition: var(--transition);
    position: relative;
}

.nav-link:after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.nav-link:hover:after {
    transform: scaleX(1);
}

/* Section Spacing */
.py-100 {
    padding: 80px 0;
}

/* Grayscale and Effects */
.grayscale-on-hover {
    filter: grayscale(1);
    transition: var(--transition);
}

.card:hover .grayscale-on-hover {
    filter: grayscale(0);
    transform: scale(1.05);
}

.hover-up {
    transition: var(--transition);
}

.hover-up:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.1) !important;
}

/* Timeline Custom Styles */
.main-timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 0;
}

.main-timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--primary);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    border-radius: 10px;
    opacity: 0.15;
}

.timeline-item {
    padding: 20px 60px;
    position: relative;
    width: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    right: -10px;
    background-color: #fff;
    border: 4px solid var(--primary);
    top: 30px;
    border-radius: 50%;
    z-index: 1;
    transition: var(--transition);
}

.timeline-item:hover::after {
    background-color: var(--primary);
    transform: scale(1.3);
}

.timeline-item.right {
    left: 50%;
}

.timeline-item.left {
    left: 0;
}

.timeline-item.right::after {
    left: -10px;
}

.timeline-item .date {
    position: absolute;
    top: 25px;
    z-index: 5;
}

.timeline-item.left .date {
    right: -140px;
}

.timeline-item.right .date {
    left: -140px;
}

/* Gallery & Zoom Styles */
.gallery-item {
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.gallery-item img {
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.gallery-item:hover img {
    transform: scale(1.15);
}

.gallery-item .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(192, 57, 43, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    color: white;
}

.gallery-item:hover .overlay {
    opacity: 1;
}

@media (max-width: 991px) {
    .main-timeline::after { left: 31px; }
    .timeline-item { width: 100%; padding-left: 70px; padding-right: 20px; }
    .timeline-item::after { left: 21px; }
    .timeline-item.left, .timeline-item.right { left: 0; }
    .timeline-item .date { position: relative; top: 0; left: 0 !important; right: 0; margin-bottom: 15px; display: block; }
}

/* Footer Custom */
.filter-white {
    filter: brightness(0) invert(1);
}

/* Helper background */
.bg-gradient-red {
    background: linear-gradient(135deg, var(--primary), #A93226);
}

/* Modal Styling */
.modal-content {
    border: none;
}

.btn-danger {
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-danger:hover {
    background-color: #A93226;
    border-color: #A93226;
    transform: scale(1.02);
}

/* Navbar active state fix */
.navbar-nav .nav-link.active {
    color: var(--primary) !important;
}

/* Course gallery image hover */
.img-container:hover img {
    transform: scale(1.02);
    transition: var(--transition);
}

/* Leading text highlight */
.lead-highlight {
    border-left: 5px solid var(--primary);
    padding-left: 25px;
}

@media (max-width: 768px) {
    .py-100 {
        padding: 50px 0;
    }
    .display-3 {
        font-size: 2.5rem;
    }
}