:root {
    --bg-color: #0B0F19;
    --card-bg: #1F2937;
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    --accent-blue: #3B82F6;
    --accent-purple: #8B5CF6;
    --gradient: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    --container-width: 1100px;
    --navbar-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navbar */
.navbar {
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient);
    border-radius: 8px;
    position: relative;
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    border: 2px solid white;
    border-radius: 50%;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

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

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

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: var(--gradient);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-lg {
    padding: 0.8rem 1.8rem;
    font-size: 1.1rem;
}

/* Hero */
.hero {
    padding: 6rem 0;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.version-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Monitor Graphic */
.monitor {
    width: 450px;
    position: relative;
}

.screen {
    width: 100%;
    aspect-ratio: 16/10;
    background: #000;
    border: 12px solid #2d3748;
    border-radius: 20px;
    position: relative;
    padding: 10px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 10px;
}

.zone {
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    transition: background 0.3s;
}

.zone:hover {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid var(--accent-blue);
}

.mid-center { display: none; } /* Center is not a zone */

.cursor {
    position: absolute;
    width: 20px;
    height: 20px;
    top: 40%;
    left: 60%;
    background: white;
    clip-path: polygon(0 0, 0 100%, 30% 70%, 100% 70%);
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
    z-index: 10;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-40px, -60px); }
}

.stand {
    width: 60px;
    height: 40px;
    background: #2d3748;
    margin: 0 auto;
}

.base {
    width: 160px;
    height: 8px;
    background: #2d3748;
    margin: 0 auto;
    border-radius: 4px 4px 0 0;
}

/* Features */
.features {
    padding: 8rem 0;
    background: rgba(255, 255, 255, 0.02);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

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

.feature-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card h3 {
    margin: 1.5rem 0 1rem;
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.feature-icon::before {
    content: '⚡';
    font-size: 1.5rem;
}

/* How It Works */
.how-it-works {
    padding: 8rem 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.step {
    text-align: center;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.step p {
    color: var(--text-secondary);
}

/* Pricing */
.pricing {
    padding: 8rem 0;
}

.pricing-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    align-items: flex-start;
}

.pricing-card {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 24px;
    width: 100%;
    max-width: 400px;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-card.featured {
    border: 2px solid var(--accent-blue);
    transform: scale(1.05);
}

.badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--accent-blue);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    margin: 1.5rem 0 0.5rem;
}

.price span {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.or {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2.5rem;
}

.pricing-features li {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li::before {
    content: '✓';
    color: var(--accent-blue);
    font-weight: 700;
}

.pricing-card .btn {
    width: 100%;
    text-align: center;
}

/* Disabled / placeholder buttons (no live download yet) */
.btn-disabled {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
    border: 1px dashed rgba(255, 255, 255, 0.2);
    cursor: not-allowed;
    box-shadow: none;
    pointer-events: none;
}

.btn-disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Download */
.download {
    padding: 6rem 0;
    text-align: center;
}

.download-card {
    max-width: 640px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 2.5rem 2rem;
}

.download-status {
    margin-top: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.download-facts {
    list-style: none;
    margin-top: 1.5rem;
    text-align: left;
    display: inline-block;
}

.download-facts li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 0.35rem 0;
}

.download-facts strong {
    color: var(--text-primary);
}

code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.85em;
    background: rgba(255, 255, 255, 0.06);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
}

/* Footer */
.footer {
    padding: 4rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 968px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    .hero h1 { font-size: 2.5rem; }
    .hero-visual { width: 100%; }
    .monitor { width: 100%; max-width: 400px; }
    .steps-grid { grid-template-columns: 1fr; }
    .pricing-grid { flex-direction: column; align-items: center; }
    .pricing-card.featured { transform: scale(1); }
}