/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --indigo-500: #6366f1;
    --indigo-600: #4f46e5;
    --violet-500: #8b5cf6;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --gray-950: #030712;
    --green-500: #22c55e;
    --yellow-500: #eab308;
    --red-500: #ef4444;
    --radius: 12px;
    --radius-sm: 8px;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-200);
    background: var(--gray-950);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Nav ─────────────────────────────────────────── */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: white;
}

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 7px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-400);
    transition: color 0.2s;
}

.nav-links a:hover {
    color: white;
}

/* ── Hero ────────────────────────────────────────── */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    background:
        radial-gradient(ellipse 80% 60% at 60% 40%, rgba(99,102,241,0.12) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 20% 80%, rgba(139,92,246,0.06) 0%, transparent 70%),
        var(--gray-950);
    overflow: hidden;
}

.hero-inner {
    max-width: 1120px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-text {
    max-width: 520px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--indigo-500);
    background: rgba(99,102,241,0.1);
    border: 1px solid rgba(99,102,241,0.2);
    margin-bottom: 28px;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    color: white;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 1.05rem;
    color: var(--gray-400);
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-img {
    width: 100%;
    max-width: 560px;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(99,102,241,0.15));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ── Buttons ─────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
}

.btn-primary {
    background: var(--indigo-600);
    color: white;
}

.btn-primary:hover {
    background: var(--indigo-500);
    box-shadow: 0 0 24px rgba(99,102,241,0.3);
}

.btn-secondary {
    background: rgba(255,255,255,0.06);
    color: var(--gray-200);
    border: 1px solid rgba(255,255,255,0.1);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.15);
}

/* ── Section Headers ─────────────────────────────── */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 56px;
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: white;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-header p {
    color: var(--gray-400);
    font-size: 1.05rem;
}

/* ── Features ────────────────────────────────────── */
.features {
    padding: 100px 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all 0.25s;
}

.feature-card:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(99,102,241,0.2);
    transform: translateY(-2px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(99,102,241,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    padding: 10px;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
    color: var(--indigo-500);
}

.feature-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.6;
}

/* ── How It Works ────────────────────────────────── */
.how-it-works {
    padding: 100px 0;
    background:
        radial-gradient(ellipse 60% 40% at 50% 100%, rgba(99,102,241,0.08) 0%, transparent 70%),
        var(--gray-950);
}

.steps {
    max-width: 640px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.step {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.step-connector {
    width: 2px;
    height: 32px;
    margin-left: 23px;
    background: linear-gradient(to bottom, rgba(99,102,241,0.4), rgba(139,92,246,0.1));
    border-radius: 1px;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--indigo-600), var(--violet-500));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    box-shadow: 0 4px 20px rgba(99,102,241,0.25);
}

.step-number svg {
    width: 100%;
    height: 100%;
}

.step-content {
    padding-top: 4px;
    padding-bottom: 8px;
}

.step-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 6px;
}

.step-content p {
    color: var(--gray-400);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ── Supported Lifts ─────────────────────────────── */
.lifts {
    padding: 100px 0;
}

.lift-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.lift-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: all 0.25s;
}

.lift-card:hover {
    border-color: rgba(99,102,241,0.2);
    transform: translateY(-2px);
}

.lift-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 14px;
    border-radius: var(--radius-sm);
}

.lift-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 6px;
}

.lift-card p {
    font-size: 0.85rem;
    color: var(--gray-400);
    line-height: 1.6;
}

/* ── Tech Section ────────────────────────────────── */
.tech {
    padding: 80px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 56px;
}

.tech-item {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.tech-icon {
    width: 36px;
    height: 36px;
    margin-bottom: 12px;
}

.tech-icon svg {
    width: 100%;
    height: 100%;
}

.tech-item h3 {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 6px;
}

.tech-item p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.6;
}

/* ── Footer ──────────────────────────────────────── */
.footer {
    padding: 40px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-meta p {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ── Responsive ──────────────────────────────────── */
@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 600px;
        margin: 0 auto;
    }

    .hero-sub {
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        max-width: 440px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .lift-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .nav-links {
        display: none;
    }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .hero {
        padding: 100px 24px 60px;
    }
}

@media (max-width: 480px) {
    .lift-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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