:root {
    --bg: #000000;
    --green: #00ff66;
    --green-dim: rgba(0,255,102,0.35);
    --green-dimmer: rgba(0,255,102,0.18);
    --text: rgba(0,255,102,0.92);
    --mono: 'IBM Plex Mono', 'Courier New', monospace;
    --terminal: 'VT323', 'IBM Plex Mono', monospace;
}

* {
    box-sizing: border-box;
}

html, body {
    min-height: 100%;
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--terminal);
    font-size: 18px;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 50% 40%, rgba(0,255,102,0.08), transparent 55%), 
                repeating-linear-gradient(to bottom, rgba(255,255,255,0.03), rgba(255,255,255,0.03) 1px, transparent 1px, transparent 3px);
    pointer-events: none;
    mix-blend-mode: screen;
    opacity: 0.45;
    z-index: 0;
}

/* Navbar Logo */
.nav-logo {
    width: 35px;
    height: 35px;
    margin-right: 12px;
    vertical-align: middle;
    filter: drop-shadow(0 0 8px rgba(0,255,102,0.4));
    animation: nav-spin 6s ease-in-out infinite;
}

@keyframes nav-spin {
    0% { transform: rotate(0deg); }
    12% { transform: rotate(360deg); }
    100% { transform: rotate(360deg); }
}

/* Navigation Bar */
.navbar {
    background: var(--bg);
    border-bottom: 2px solid var(--green);
    padding: 0;
    box-shadow: 0 2px 12px rgba(0,255,102,0.3);
    position: relative;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-brand {
    display: flex;
    align-items: center;
    font-family: var(--terminal);
    font-size: 1.8rem;
    color: var(--green);
    text-decoration: none;
    letter-spacing: 0.1em;
    text-shadow: 0 0 20px rgba(0,255,102,0.4);
    transition: text-shadow 0.3s ease;
}

.nav-brand:hover {
    text-shadow: 0 0 30px rgba(0,255,102,0.6);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-family: var(--terminal);
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--green);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--green);
    text-shadow: 0 0 8px rgba(0,255,102,0.6);
}

/* Transportation Container */
.transportation-container {
    max-width: 1000px;
    margin: 80px auto 60px;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* Terminal Window */
.terminal-window {
    border: 2px solid var(--green);
    border-radius: 8px;
    background: rgba(0,0,0,0.88);
    box-shadow: 0 0 40px rgba(0,255,102,0.28), inset 0 0 30px rgba(0,255,102,0.05);
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.terminal-window.visible {
    opacity: 1;
    transform: translateY(0);
}

.terminal-header {
    background: rgba(0,255,102,0.15);
    border-bottom: 1px solid var(--green-dim);
    padding: 12px 20px;
}

.transportation-container .terminal-header {
    background: linear-gradient(90deg, rgba(0,255,102,0.12), rgba(0,200,255,0.15), rgba(0,255,102,0.12));
    border-bottom: 1px solid rgba(0,200,255,0.3);
}

.terminal-title {
    font-family: var(--terminal);
    font-size: 1.1rem;
    color: var(--green);
    letter-spacing: 0.05em;
}

.terminal-content {
    padding: 40px;
}

.page-title {
    font-family: var(--terminal);
    font-size: 2.2rem;
    color: var(--green);
    margin: 0 0 20px 0;
    letter-spacing: 0.12em;
    text-shadow: 0 0 20px rgba(0,255,102,0.4);
}

.divider {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--green-dim), transparent);
    margin: 25px 0 35px;
}

/* Info Card */
.info-card {
    border: 1px solid var(--green-dim);
    background: rgba(0,255,102,0.03);
    padding: 30px;
    margin-bottom: 30px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--green-dim);
}

.card-icon {
    font-size: 2rem;
    color: var(--green);
}

.card-header h2 {
    font-family: var(--terminal);
    font-size: 1.8rem;
    color: var(--green);
    margin: 0;
    letter-spacing: 2px;
}

.card-content {
    font-family: var(--mono);
    font-size: 1rem;
    line-height: 1.8;
}

.intro-text {
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.intro-text strong {
    color: var(--green);
}

/* Benefit Section */
.benefit-section {
    margin: 30px 0;
    padding: 20px;
    background: rgba(0,255,102,0.05);
    border-left: 3px solid var(--green);
}

.benefit-section h3 {
    font-family: var(--terminal);
    font-size: 1.5rem;
    color: var(--green);
    margin: 0 0 15px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-icon {
    font-size: 1.8rem;
}

.benefit-section p {
    margin-bottom: 15px;
}

.hub-list {
    list-style: none;
    padding: 0;
    margin: 15px 0 0 0;
}

.hub-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 15px;
    margin-bottom: 8px;
    background: rgba(0,255,102,0.08);
    border-left: 2px solid var(--green-dim);
    font-size: 1.1rem;
}

.list-icon {
    font-size: 1.5rem;
    color: var(--green);
}

.credit-note {
    margin-top: 15px;
    font-size: 0.9rem;
    opacity: 0.8;
    font-style: italic;
}

/* Sponsor Section */
.sponsor-section {
    margin: 30px 0;
    text-align: center;
}

.sponsor-badge {
    display: inline-block;
    padding: 25px 40px;
    background: linear-gradient(135deg, rgba(0,255,102,0.1), rgba(0,255,102,0.05));
    border: 2px solid var(--green-dim);
    border-radius: 8px;
}

.badge-icon {
    font-size: 2.5rem;
    color: var(--green);
    margin-bottom: 10px;
}

.sponsor-badge p {
    margin: 10px 0 5px;
    font-size: 0.95rem;
    opacity: 0.8;
}

.sponsor-logo {
    max-width: 200px;
    height: auto;
    margin: 15px 0;
    filter: brightness(1.1) drop-shadow(0 0 8px rgba(0,255,102,0.3));
}

.sponsor-name {
    font-family: var(--terminal);
    font-size: 1.6rem;
    color: var(--green);
    font-weight: bold;
    letter-spacing: 2px;
    text-shadow: 0 0 8px rgba(0,255,102,0.5);
}

/* Note Box */
.note-box {
    margin: 30px 0 0;
    padding: 20px;
    background: rgba(0,255,102,0.08);
    border: 1px solid var(--green-dim);
    display: flex;
    gap: 15px;
}

.note-icon {
    font-size: 1.8rem;
    color: var(--green);
    flex-shrink: 0;
}

.note-content {
    flex: 1;
}

.note-content p {
    margin: 0 0 10px 0;
}

.note-content p:last-child {
    margin-bottom: 0;
}

.note-content strong {
    color: var(--green);
}

/* Action Section */
.action-section {
    text-align: center;
    padding: 30px 0 10px;
    border-top: 1px solid var(--green-dim);
}

.action-text {
    font-family: var(--terminal);
    font-size: 1.3rem;
    color: var(--green);
    margin-bottom: 20px;
}

.register-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 40px;
    background: transparent;
    border: 2px solid var(--green);
    color: var(--green);
    font-family: var(--terminal);
    font-size: 1.3rem;
    text-decoration: none;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.register-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--green);
    transition: left 0.3s ease;
    z-index: -1;
}

.register-btn:hover::before {
    left: 0;
}

.register-btn:hover {
    color: #000;
    box-shadow: 0 0 20px rgba(0,255,102,0.6);
}

.btn-icon {
    font-size: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 15px 20px;
        gap: 15px;
    }

    .nav-brand {
        font-size: 1.5rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .terminal-window {
        margin: 100px 15px 40px;
    }

    .transportation-container {
        margin: 100px 15px 40px;
        padding: 0;
    }

    .terminal-content {
        padding: 25px 20px;
    }

    .page-title {
        font-size: 1.8rem;
    }

    .card-header h2 {
        font-size: 1.4rem;
    }

    .info-card {
        padding: 20px;
    }

    .hub-list li {
        font-size: 1rem;
    }

    .sponsor-badge {
        padding: 20px 25px;
    }

    .sponsor-logo {
        max-width: 150px;
    }

    .sponsor-name {
        font-size: 1.3rem;
    }

    .note-box {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 520px) {
    .terminal-content {
        padding: 20px 16px;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .register-btn {
        width: 100%;
        justify-content: center;
    }

    .hub-list li {
        font-size: 0.95rem;
    }
}