@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700;900&display=swap');

/* --- RESET & LAYOUT --- */
* { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #000;
    background-image: linear-gradient(rgba(0,0,0,0.75), rgba(0,0,0,0.75)), url('your-background.jpeg');
    background-attachment: fixed; 
    background-size: cover;      
    background-position: center;
    color: white;
    display: flex;
    flex-direction: column;
    text-align: center;
}

/* --- HEADER --- */
header {
    padding: 10px;
    background: rgba(0, 0, 0, 0.9); 
    border-bottom: 2px solid #00f2fe;
    width: 100%;
    z-index: 1000;
}

.top-left-logo { width: 45px; height: auto; margin-bottom: 5px; }

.college-name {
    font-size: 1rem;
    font-weight: 900;
    color: #ffff00; /* Yellow */
    text-transform: uppercase;
    text-shadow: 0 0 10px rgba(255, 255, 0, 0.3);
}

.autonomous-text { 
    font-size: 1rem; /* Increased size to match college name */
    color: #ff00ff; 
    letter-spacing: 2px; 
    font-weight: bold; 
}

.address-text { 
    font-size: 1rem; /* Increased size to match college name */
    color: #ccc; 
}

nav { margin-top: 10px; }
nav a { color: white; text-decoration: none; margin: 0 8px; font-weight: bold; font-size: 0.85rem; }

/* --- UNIFIED FULL SCREEN WRAPPER --- */
.full-screen-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 10px;
    width: 100%;
}

/* --- TEXT & ANIMATIONS --- */
.dept-label { color: #00f2fe; letter-spacing: 5px; font-size: 0.9rem; font-weight: 700; margin: 0; }
.dept-name { color: #ff0000; font-size: 1.4rem; font-weight: 900; margin: 5px 0 20px 0; }
.ripple-text { letter-spacing: 12px; color: #00ff00; font-size: 1.8rem; font-weight: 800; }

.event-title {
    font-size: clamp(2.2rem, 10vw, 5rem);
    font-weight: 900;
    background: linear-gradient(90deg, #00f2fe, #ff00ff, #00ff00, #00f2fe);
    background-size: 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: rgb-flow 5s linear infinite;
    margin: 10px 0;
}

@keyframes rgb-flow { 0% { background-position: 0%; } 100% { background-position: 100%; } }

.symposium-subtext { font-size: 0.85rem; color: #00f2fe; font-weight: 700; letter-spacing: 2px; }
.event-date { color: #ff00ff; font-weight: 900; margin-top: 20px; font-size: 1.3rem; }

/* --- EVENTS GRID (Images Only) --- */
.events-content { width: 100%; max-height: 70vh; overflow-y: auto; padding: 10px; }

.banner-glass {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 242, 254, 0.2);
    backdrop-filter: blur(5px);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); 
    gap: 15px;
}

.event-card {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 242, 254, 0.3);
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: 0.3s ease-in-out;
}

.event-card:hover {
    transform: scale(1.05);
    border-color: #ff00ff;
}

.event-card img { width: 100%; height: auto; display: block; }

/* --- CTA BUTTON --- */
.explore-btn {
    margin-top: 20px;
    padding: 12px 35px;
    color: #fff;
    text-decoration: none;
    border: 2px solid #00f2fe;
    border-radius: 50px;
    font-weight: bold;
    background: rgba(0, 242, 254, 0.1);
}

/* --- OVERLAY STYLES --- */
.event-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.95); z-index: 9999; display: none;
    flex-direction: column; align-items: center; justify-content: center;
    backdrop-filter: blur(10px);
}

.overlay-content { max-width: 500px; padding: 20px; text-align: center; }
.overlay-content img { width: 100%; max-width: 300px; border-radius: 15px; border: 2px solid #00f2fe; margin-bottom: 15px; }
.overlay-content h2 { font-size: 1.8rem; margin-bottom: 10px; }
.overlay-content p { font-size: 1rem; color: #ddd; line-height: 1.5; }

.back-btn {
    position: absolute; top: 30px; left: 20px;
    background: transparent; color: #ff00ff; border: 2px solid #ff00ff;
    padding: 8px 16px; cursor: pointer; border-radius: 5px; font-weight: bold;
}

.register-btn {
    display: inline-block; margin-top: 20px; padding: 12px 30px;
    background: #ff00ff; color: white; text-decoration: none;
    font-weight: bold; border-radius: 50px; text-transform: uppercase;
}

/* --- FOOTER --- */
footer { padding: 15px 0; background: rgba(0,0,0,0.8); font-size: 0.7rem; }

/* --- DESKTOP --- */
@media (min-width: 1024px) {
    .top-left-logo { position: absolute; left: 30px; width: 70px; }
    .college-name { font-size: 1.6rem; }
    .events-grid { grid-template-columns: repeat(4, 1fr); gap: 25px; }
}