:root {
    --bg-color: #050505;
    --card-bg: #0e0e0e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #00ff41;
    /* Matrix Green */
    --accent-dim: #003300;
    --highlight: #ccff00;
    /* Biohazard Lime */
    --font-head: 'Orbitron', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
    --font-body: 'Rajdhani', sans-serif;
    --border-color: #333;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    overflow-x: hidden;
    line-height: 1.6;
}

/* CRT & Glitch Effects Overlay */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 1px,
            rgba(0, 0, 0, 0.1) 2px,
            rgba(0, 0, 0, 0.1) 3px);
    z-index: 999;
}

.scanline {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: rgba(0, 255, 65, 0.1);
    opacity: 0.4;
    animation: scan 6s linear infinite;
    pointer-events: none;
    z-index: 1000;
}

@keyframes scan {
    0% {
        top: -10%;
    }

    100% {
        top: 110%;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
}

/* Navigation */
.cyber-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 50px;
    background: rgba(0, 0, 0, 0.95);
    border-bottom: 2px solid var(--accent);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    box-shadow: 0 5px 20px rgba(0, 255, 65, 0.1);
}

/* Scanner Line on Border */
.cyber-nav::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #fff;
    box-shadow: 0 0 10px #fff, 0 0 20px var(--accent);
    animation: scan-line 4s linear infinite;
    opacity: 0.7;
}

@keyframes scan-line {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* Central Notch */
.cyber-nav::before {
    content: 'SYSTEM_MONITORING::ACTIVE';
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #000;
    padding: 2px 20px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: bold;
    clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 10px 100%);
    letter-spacing: 2px;
}

.logo {
    font-family: var(--font-head);
    font-size: 1.8rem;
    font-weight: 900;
    color: #fff;
    letter-spacing: 2px;
    position: relative;
    cursor: pointer;
    text-shadow: 0 0 5px rgba(0, 255, 65, 0.5);
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Logo Status Dot */
.logo::before {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent);
    animation: blink-status-dot 1s infinite alternate;
    display: inline-block;
    padding: 0;
    border: none;
    font-size: 0;
}

@keyframes blink-status-dot {
    from {
        opacity: 0.5;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1.2);
    }
}

.nav-links {
    display: none;
}

.register-btn {
    background: var(--accent);
    border: 2px solid var(--accent);
    color: #000;
    padding: 10px 30px;
    font-family: var(--font-head);
    cursor: pointer;
    transition: 0.3s;
    text-transform: uppercase;
    font-weight: 900;
    font-size: 0.9rem;
    letter-spacing: 1px;
    clip-path: polygon(15px 0, 100% 0, 100% 100%, 0 100%, 0 15px);
    position: relative;
    overflow: hidden;
}

.register-btn:hover {
    background: #000;
    color: var(--accent);
    box-shadow: 0 0 25px rgba(0, 255, 65, 0.4);
}

/* Glitch hover effect for button */
.register-btn:hover::after {
    content: 'ACCESS_GRANTED';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    text-align: center;
    background: #000;
    color: var(--accent);
    font-size: 0.7rem;
    letter-spacing: 2px;
}

.sound-toggle {
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid var(--text-secondary);
    color: var(--text-secondary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;

    /* Fixed Positioning */
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.sound-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.5);
    transform: scale(1.1);
}

.sound-toggle.active {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent);
    animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 255, 65, 0.4);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(0, 255, 65, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 255, 65, 0);
    }
}

@media (max-width: 768px) {
    .sound-toggle {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    /* Optional: Add a dark, grungy background image here */
    background: radial-gradient(circle at center, #051a05 0%, #000000 100%);
    position: relative;
    padding-top: 120px;
    /* Navbar offset */
    box-sizing: border-box;
}

.hero-content {
    z-index: 10;
    max-width: 800px;
    padding: 20px;
}

.sub-hero {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 20px;
    letter-spacing: 3px;
}

.association {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: 25px;
    letter-spacing: 2px;
}

h1.glitch-large {
    font-family: var(--font-head);
    font-size: 5rem;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 5px;
    margin-bottom: 10px;
    position: relative;
    text-shadow: 2px 2px 0px var(--accent-dim);
}

.hero-date {
    font-family: var(--font-mono);
    color: var(--highlight);
    font-size: 1.5rem;
    margin-bottom: 40px;
}

/* Countdown */
.countdown-container {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
}

.time-segment {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: var(--font-mono);
}

.time-segment span:first-child {
    font-size: 3rem;
    font-weight: bold;
    color: var(--accent);
}

.time-segment .label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: var(--accent);
    color: black;
    text-decoration: none;
    font-family: var(--font-head);
    font-weight: bold;
    font-size: 1.2rem;
    border: 2px solid var(--accent);
    transition: 0.3s;
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.cta-button:hover {
    background: transparent;
    color: var(--accent);
    box-shadow: 0 0 30px rgba(0, 255, 65, 0.4);
}

/* Events Section */
.events-section {
    padding: 80px 50px;
    background-color: var(--bg-color);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-head);
    font-size: 3rem;
    color: var(--text-primary);
    text-transform: uppercase;
}

.section-line {
    width: 100px;
    height: 4px;
    background: var(--accent);
    margin: 20px auto;
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.event-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 30px;
    position: relative;
    transition: all 0.3s;
    cursor: pointer;
    overflow: hidden;
}

.event-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.event-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent);
    transform: scaleY(0);
    transition: transform 0.3s;
    transform-origin: bottom;
}

.event-card:hover::before {
    transform: scaleY(1);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.card-title {
    font-family: var(--font-head);
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #fff;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    color: var(--highlight);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: #111;
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--accent);
    padding: 40px;
    position: relative;
    box-shadow: 0 0 50px rgba(0, 255, 65, 0.2);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 30px;
    color: var(--accent);
    font-size: 2rem;
    cursor: pointer;
}

#modal-title {
    font-family: var(--font-head);
    font-size: 2.2rem;
    color: var(--accent);
    margin-bottom: 30px;
    border-bottom: 1px solid #333;
    padding-bottom: 15px;
}

.modal-section {
    margin-bottom: 25px;
}

.modal-section h3 {
    font-family: var(--font-mono);
    color: var(--highlight);
    font-size: 1.1rem;
    margin-bottom: 10px;
    text-transform: uppercase;
}

/* Protocols Section */
.protocols-section {
    padding: 80px 50px;
    background: #080808;
    background-image: linear-gradient(0deg, transparent 24%, rgba(0, 255, 65, .03) 25%, rgba(0, 255, 65, .03) 26%, transparent 27%, transparent 74%, rgba(0, 255, 65, .03) 75%, rgba(0, 255, 65, .03) 76%, transparent 77%, transparent), linear-gradient(90deg, transparent 24%, rgba(0, 255, 65, .03) 25%, rgba(0, 255, 65, .03) 26%, transparent 27%, transparent 74%, rgba(0, 255, 65, .03) 75%, rgba(0, 255, 65, .03) 76%, transparent 77%, transparent);
    background-size: 50px 50px;
}

.protocols-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.protocol-card {
    background: rgba(14, 14, 14, 0.9);
    border: 1px solid #333;
    padding: 30px;
    text-align: center;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}

.protocol-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 30px;
    border-top: 2px solid var(--accent);
    border-left: 2px solid var(--accent);
    transition: 0.3s;
}

.protocol-card:hover::before {
    width: 100%;
    height: 100%;
}

.protocol-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
}

.protocol-card i {
    font-size: 2.5rem;
    color: var(--highlight);
    margin-bottom: 20px;
}

.protocol-card h3 {
    font-family: var(--font-head);
    color: #fff;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.protocol-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Contact Section (Holographic HUD) */
.contact-section {
    padding: 80px 20px;
    background: #020202;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hud-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    width: 100%;
    max-width: 1200px;
}

.hud-card {
    background: rgba(0, 20, 0, 0.6);
    border: 1px solid rgba(0, 255, 65, 0.3);
    border-radius: 5px;
    backdrop-filter: blur(5px);
    overflow: hidden;
    position: relative;
    transition: 0.3s;
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.05);
}

.hud-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 25px rgba(0, 255, 65, 0.2);
    transform: translateY(-5px);
}

.hud-header {
    background: rgba(0, 255, 65, 0.1);
    padding: 15px 20px;
    font-family: var(--font-mono);
    color: var(--accent);
    border-bottom: 1px solid rgba(0, 255, 65, 0.2);
    font-size: 1.1rem;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hud-body {
    padding: 25px;
}

.hud-label {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 5px;
    text-transform: uppercase;
}

.hud-val {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.4;
}

/* Specific Node Styles */
.venue-highlight {
    background: rgba(0, 255, 65, 0.1);
    border: 1px dashed var(--accent);
    padding: 10px;
    color: var(--highlight);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 20px;
    text-align: center;
}

.hud-btn {
    display: block;
    width: 100%;
    padding: 12px;
    text-align: center;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    text-decoration: none;
    font-family: var(--font-mono);
    transition: 0.3s;
    text-transform: uppercase;
    font-size: 0.9rem;
}

.hud-btn:hover {
    background: var(--accent);
    color: #000;
    box-shadow: 0 0 15px var(--accent);
}

.person-group {
    margin-bottom: 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 15px;
}

.person-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.student-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.student-row span {
    color: #ddd;
}

.hud-link {
    color: var(--highlight);
    text-decoration: none;
    font-family: var(--font-mono);
    transition: 0.3s;
}

.hud-link:hover {
    color: var(--accent);
    text-shadow: 0 0 8px var(--accent);
}

.center-content {
    text-align: center;
    padding: 40px 20px;
}

.hud-text {
    color: #aaa;
    margin-bottom: 15px;
}

.uplink-email {
    display: inline-block;
    color: var(--accent);
    font-size: 1.1rem;
    font-family: var(--font-mono);
    text-decoration: none;
    border-bottom: 1px solid var(--accent);
    padding-bottom: 2px;
    transition: 0.3s;
}

.uplink-email:hover {
    letter-spacing: 1px;
    box-shadow: 0 2px 0 var(--accent);
}

/* Responsive adjustments for HUD */
@media (max-width: 768px) {
    .hud-grid {
        grid-template-columns: 1fr;
    }
}

/* Footer */
footer {
    background: #090909;
    padding: 40px;
    text-align: center;
    border-top: 1px solid #222;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

/* Responsive */
/* Responsive Design Operations */
@media (max-width: 1024px) {
    .events-grid {
        gap: 30px;
    }

    h1.glitch-large {
        font-size: 4rem;
    }
}

@media (max-width: 768px) {
    .cyber-nav {
        padding: 15px 20px;
        flex-direction: column;
        gap: 15px;
        background: rgba(5, 5, 5, 0.98);
        /* Less transparent for readability */
    }

    .nav-links {
        display: flex;
        /* Restore links */
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
        order: 2;
        /* Put links below logo */
    }

    .logo {
        order: 1;
        margin-bottom: 5px;
    }

    .register-btn {
        order: 3;
        width: 100%;
        max-width: 300px;
    }

    .hero {
        padding-top: 240px;
        /* Account for stacked navbar */
        height: auto;
        min-height: 100vh;
        padding-bottom: 60px;
    }

    .hero-content {
        padding: 0 20px;
    }

    h1.glitch-large {
        font-size: 3rem;
        letter-spacing: 2px;
        margin-bottom: 20px;
    }

    .sub-hero,
    .association {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .nav-links {
        gap: 15px;
        font-size: 0.9rem;
    }

    .hero {
        padding-top: 280px;
        /* More space for tighter mobile screens */
    }

    h1.glitch-large {
        font-size: 2.2rem;
        letter-spacing: 1px;
    }

    .association {
        font-size: 0.8rem;
        letter-spacing: 0px;
    }

    .countdown-container {
        gap: 15px;
    }

    .time-segment span:first-child {
        font-size: 1.8rem;
    }

    .events-grid {
        grid-template-columns: 1fr;
        /* Full width cards */
        padding: 0 10px;
    }

    .section-header {
        margin-bottom: 40px;
    }

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

    .modal-content {
        width: 95%;
        padding: 25px;
        margin: 10px;
    }

    #modal-title {
        font-size: 1.6rem;
    }

    .close-modal {
        right: 15px;
        top: 15px;
    }
}