body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8fafc;
    color: #1e293b;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-logo {
    height: 60px;
    object-fit: contain;
}

nav a {
    color: #0f172a;
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 600;
    transition: color 0.2s;
}

nav a:hover { color: #e91e63; }

main { flex: 1; }

.hero {
    text-align: center;
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
}
.hero h2 { font-size: 2.5rem; margin-bottom: 1rem; }
.hero p { font-size: 1.2rem; opacity: 0.9; }

.container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 1rem;
}

.card {
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover { 
    transform: translateY(-5px); 
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    background: #e91e63;
    color: white;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 700;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px -1px rgba(233,30,99,0.4);
}

.btn:hover { 
    background: #d81b60; 
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(233,30,99,0.4);
}
.btn-calendar { background: #4285F4; box-shadow: 0 4px 6px -1px rgba(66,133,244,0.4); }
.btn-calendar:hover { background: #3367D6; box-shadow: 0 10px 15px -3px rgba(66,133,244,0.4); }

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.gallery img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 12px;
    transition: transform 0.3s ease;
}
.gallery img:hover { transform: scale(1.03); }

/* Landing Page Specifics */
.landing-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}
@media (max-width: 768px) {
    .landing-grid { grid-template-columns: 1fr; }
}
.poster-img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.modal-overlay.active { display: flex; opacity: 1; }
.modal-content {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    width: 90%;
    max-width: 450px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}
.modal-overlay.active .modal-content { transform: scale(1); }
.modal-close {
    float: right;
    font-size: 1.5rem;
    cursor: pointer;
    background: none; border: none; color: #64748b;
}

form { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 1rem; }
input { padding: 1rem; border: 2px solid #e2e8f0; border-radius: 12px; font-size: 1rem; transition: border-color 0.2s; }
input:focus { outline: none; border-color: #e91e63; }

/* Footer */
footer {
    background: #0f172a;
    color: white;
    padding: 3rem 2rem 1rem;
    margin-top: auto;
}
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}
.course-banner {
    width: 100%;
    max-width: 800px;
    border-radius: 16px;
    margin: 1.5rem auto;
    display: block;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.3);
}
.footer-links {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
    gap: 2rem;
}
.footer-links a { color: #cbd5e1; text-decoration: none; }
.footer-links a:hover { color: white; }

/* Partner Logos */
.partners-section {
    background: white;
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid #e2e8f0;
}
.partners-section h3 {
    color: #64748b;
    font-size: 1.25rem;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}
.partner-logos img {
    height: 80px;
    object-fit: contain;
    filter: grayscale(20%);
    transition: filter 0.3s ease, transform 0.3s ease;
}
.partner-logos img:hover {
    filter: grayscale(0%);
    transform: scale(1.05);
}

/* Marquee Bar */
.marquee-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #e91e63;
    color: white;
    padding: 0.75rem 0;
    font-weight: bold;
    font-size: 1.2rem;
    z-index: 1000;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.2);
    overflow: hidden;
    white-space: nowrap;
}

.marquee-content {
    display: inline-block;
    animation: marquee 20s linear infinite;
    padding-left: 100%;
}

@keyframes marquee {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}

/* Enhanced Hero */
.hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(233,30,99,0.1) 10%, transparent 20%);
    background-size: 20px 20px;
    animation: moveBg 30s linear infinite;
    opacity: 0.5;
}
@keyframes moveBg {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.hero > * { position: relative; z-index: 1; }

/* Marquee Updates */
.marquee-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #e91e63;
    color: white;
    padding: 0;
    font-weight: bold;
    font-size: 1.1rem;
    z-index: 1000;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
}

.marquee-wrapper {
    flex: 1;
    overflow: hidden;
    white-space: nowrap;
    padding: 0.75rem 0;
}

.marquee-content {
    display: inline-block;
    animation: marquee 25s linear infinite;
    padding-left: 100%;
}

.marquee-cta {
    background: #1e3c72;
    color: white;
    text-decoration: none;
    padding: 0.75rem 2rem;
    font-weight: 800;
    white-space: nowrap;
    z-index: 1001;
    transition: background 0.2s;
}
.marquee-cta:hover {
    background: #2a5298;
}