:root {
    --primary-neon: #00ffff;
    --secondary-neon: #ff00ff;
    --accent-neon: #ffff00;
    --dark-bg: #0a0a0f;
    --darker-bg: #050508;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
}

/* ==================== BACKGROUND ANIMATION ==================== */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.stars,
.twinkling {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
}

.stars {
    background: #000 url('data:image/svg+xml;base64,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') repeat;
    animation: starsMove 200s linear infinite;
}

.twinkling {
    background: transparent url('data:image/svg+xml;base64,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') repeat;
    animation: twinkle 100s linear infinite;
}

@keyframes starsMove {
    from { transform: translateY(0); }
    to { transform: translateY(-1000px); }
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(50px); }
}

/* ==================== GLASSMORPHISM ==================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 48px rgba(0, 255, 255, 0.2);
    border-color: rgba(0, 255, 255, 0.3);
}

/* ==================== NAVIGATION ==================== */
.glass-nav {
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-neon);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-neon) !important;
}

.nav-link:hover::after {
    width: 80%;
}

/* ==================== NEON TEXT ==================== */
.neon-text {
    color: var(--primary-neon);
    text-shadow:
        0 0 10px var(--primary-neon),
        0 0 20px var(--primary-neon),
        0 0 30px var(--primary-neon);
    animation: neonPulse 2s ease-in-out infinite alternate;
}

@keyframes neonPulse {
    from {
        text-shadow:
            0 0 10px var(--primary-neon),
            0 0 20px var(--primary-neon),
            0 0 30px var(--primary-neon);
    }
    to {
        text-shadow:
            0 0 20px var(--primary-neon),
            0 0 30px var(--primary-neon),
            0 0 40px var(--primary-neon),
            0 0 50px var(--secondary-neon);
    }
}

.highlight-text {
    background: linear-gradient(90deg, var(--primary-neon), var(--secondary-neon), var(--accent-neon));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: bold;
}

/* ==================== BUTTONS ==================== */
.btn-neon {
    background: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon));
    color: var(--dark-bg);
    font-weight: bold;
    border: none;
    border-radius: 50px;
    padding: 12px 30px;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
}

.btn-neon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.3);
    transition: left 0.5s ease;
}

.btn-neon:hover::before {
    left: 100%;
}

.btn-neon:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.8);
    color: var(--dark-bg);
}

.btn-outline-neon {
    background: transparent;
    color: var(--primary-neon);
    font-weight: bold;
    border: 2px solid var(--primary-neon);
    border-radius: 50px;
    padding: 12px 30px;
    transition: all 0.3s ease;
}

.btn-outline-neon:hover {
    background: var(--primary-neon);
    color: var(--dark-bg);
    transform: scale(1.05);
    box-shadow: 0 0 20px var(--primary-neon);
}

/* ==================== HERO SECTION ==================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.animate-slide-in {
    animation: slideInLeft 1s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.floating-card {
    animation: float 6s ease-in-out infinite;
    position: relative;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.floating-card img {
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 255, 255, 0.3);
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.2), transparent);
    filter: blur(40px);
    z-index: -1;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--primary-neon);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* ==================== FEATURES ==================== */
.feature-card {
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-icon {
    color: var(--primary-neon);
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.2) rotate(10deg);
    filter: drop-shadow(0 0 20px var(--primary-neon));
}

/* ==================== BENEFITS ==================== */
.benefit-icon {
    color: var(--secondary-neon);
}

/* ==================== STATS ==================== */
.stat-number {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ==================== SIGNUP FORM ==================== */
.signup-card {
    max-width: 600px;
    margin: 0 auto;
}

.glass-input .input-group-text {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--primary-neon);
    border-right: none;
}

.glass-input .form-control {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    border-left: none;
    padding: 12px 20px;
}

.glass-input .form-control:focus {
    background: var(--glass-bg);
    color: var(--text-primary);
    border-color: var(--primary-neon);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.glass-input .form-control::placeholder {
    color: var(--text-secondary);
}

.form-check-input {
    background-color: var(--glass-bg);
    border-color: var(--glass-border);
}

.form-check-input:checked {
    background-color: var(--primary-neon);
    border-color: var(--primary-neon);
}

.neon-link {
    color: var(--primary-neon);
    text-decoration: none;
    transition: all 0.3s ease;
}

.neon-link:hover {
    color: var(--secondary-neon);
    text-shadow: 0 0 10px var(--secondary-neon);
}

/* ==================== FOOTER ==================== */
footer {
    margin-top: 5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--primary-neon);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: var(--primary-neon);
    color: var(--dark-bg);
    transform: translateY(-5px);
    box-shadow: 0 0 20px var(--primary-neon);
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.footer-link:hover {
    color: var(--primary-neon);
    transform: translateX(5px);
}

.text-light-gray {
    color: var(--text-secondary);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 991px) {
    .hero-section {
        text-align: center;
    }

    .hero-content .glass-card {
        margin-bottom: 3rem;
    }

    .display-3 {
        font-size: 2.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }
}

@media (max-width: 767px) {
    .display-3 {
        font-size: 2rem;
    }

    .display-4 {
        font-size: 2rem;
    }

    .display-5 {
        font-size: 1.75rem;
    }

    .glass-card {
        padding: 1.5rem;
    }

    .btn-lg {
        padding: 10px 25px;
        font-size: 0.9rem;
    }
}

/* ==================== UTILITIES ==================== */
.alert {
    border-radius: 15px;
    border: 1px solid var(--glass-border);
}

.alert-success {
    background: rgba(0, 255, 0, 0.1);
    color: #00ff00;
    border-color: #00ff00;
}

.alert-danger {
    background: rgba(255, 0, 0, 0.1);
    color: #ff4444;
    border-color: #ff4444;
}