:root {
    --bg-color: #050505;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --accent-color: #00ff88;
    --accent-glow: rgba(0, 255, 136, 0.4);
    --card-bg: rgba(20, 20, 20, 0.6);
    --card-border: rgba(255, 255, 255, 0.08);
    --glass-blur: 12px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Typography */
h1, h2, h3 {
    font-family: 'Space Grotesk', sans-serif;
    letter-spacing: -0.02em;
}

.highlight {
    color: var(--accent-color);
    text-shadow: 0 0 20px var(--accent-glow);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Background Effects */
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.5;
}
.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-color);
    top: -100px;
    left: -100px;
    opacity: 0.15;
}
.orb-2 {
    width: 300px;
    height: 300px;
    background: #0055ff;
    top: 40%;
    right: -50px;
    opacity: 0.1;
}
.orb-3 {
    width: 500px;
    height: 500px;
    background: #7700ff;
    bottom: -100px;
    left: 20%;
    opacity: 0.1;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--card-border);
    z-index: 100;
    background: rgba(5, 5, 5, 0.7);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--text-main);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    box-shadow: 0 0 25px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--card-border);
}

.btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-secondary {
    background: rgba(255,255,255,0.05);
    color: var(--text-main);
    border: 1px solid var(--card-border);
    text-decoration: none;
    display: inline-block;
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
}

/* Glass Card Utility */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem;
}

/* Hero Section */
.hero {
    padding-top: 150px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* Hero Visual */
.visual-card {
    position: relative;
    padding: 2rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.visual-card:hover {
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-family: monospace;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
    100% { opacity: 1; transform: scale(1); }
}

.code-snippet {
    font-family: monospace;
    color: var(--text-muted);
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.code-snippet code {
    background: rgba(0,0,0,0.3);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border-left: 2px solid var(--accent-color);
}

/* Features Section */
.features {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.2);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

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

/* Architecture Section */
.architecture {
    padding: 6rem 0;
}

.architecture-content {
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(20,20,20,0.8) 0%, rgba(10,10,10,0.9) 100%);
}

.arch-text p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.arch-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.arch-list li {
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-main);
}

.arch-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.mt-4 { margin-top: 2rem; }

/* Footer */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--card-border);
    text-align: center;
    color: var(--text-muted);
}

.footer .logo {
    margin-bottom: 1rem;
    color: var(--text-main);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 450px;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: var(--text-main);
}

.modal-header h2 {
    margin-bottom: 1rem;
}

.modal-body p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    border-color: var(--accent-color);
}

.w-100 {
    width: 100%;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
}

.form-message.success {
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent-color);
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.form-message.error {
    background: rgba(255, 50, 50, 0.1);
    color: #ff5555;
    border: 1px solid rgba(255, 50, 50, 0.2);
}

.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-subtitle {
        margin: 0 auto 2.5rem auto;
    }
    .nav-links a:not(.register-btn) {
        display: none;
    }
}