@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=DM+Sans:wght@400;500&display=swap');

:root {
    --bg: #0d1117;
    --card-bg: #161b22;
    --accent: #4da8ff;
    --text: #ffffff;
    --muted: #c9d1d9;
    --shadow: 0 30px 60px rgba(3, 6, 13, 0.45);
    --radius: 10px;
}

html {
    scroll-behavior: smooth;
}

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

body {
    font-family: 'Inter', 'DM Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

header,
main,
footer {
    padding: 0 5vw;
    max-width: 1200px;
    margin: 0 auto;
}

.site-header {
    padding-top: 32px;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background-color: rgba(9, 12, 18, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    position: sticky;
    top: 20px;
    z-index: 10;
    backdrop-filter: blur(12px);
}

.logo {
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.logo img {
    height: 32px;
    width: auto;
    display: block;
}

.hero {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 60px;
    padding: 80px 0 100px;
    align-items: center;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--muted);
    margin-top: 20px;
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 32px;
}

.hero-media {
    width: 100%;
}

.media-placeholder {
    background: linear-gradient(135deg, rgba(77, 168, 255, 0.1), rgba(77, 168, 255, 0));
    border: 1px solid rgba(77, 168, 255, 0.3);
    border-radius: var(--radius);
    height: 320px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 24px;
    box-shadow: var(--shadow);
}

.placeholder-label {
    background-color: rgba(13, 17, 23, 0.8);
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 999px;
    font-weight: 600;
    transition: all 0.25s ease;
    border: 1px solid transparent;
}

.btn.primary {
    background-color: var(--accent);
    color: #041a2b;
    box-shadow: 0 0 20px rgba(77, 168, 255, 0.4);
}

.btn.primary:hover {
    box-shadow: 0 0 35px rgba(77, 168, 255, 0.7);
    transform: translateY(-2px);
}

.btn.secondary {
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--text);
}

.btn.secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.eyebrow {
    font-size: 0.8rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.section-heading {
    margin-bottom: 24px;
}

.section-heading h2 {
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1.2;
    max-width: 640px;
}

section {
    margin-bottom: 100px;
}

.problem {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    padding: 60px;
    box-shadow: var(--shadow);
}

.problem-list {
    list-style: none;
    display: grid;
    gap: 14px;
    margin: 32px 0;
    color: var(--muted);
}

.problem-list li::before {
    content: '•';
    color: var(--accent);
    margin-right: 12px;
}

.problem-summary {
    color: var(--text);
    font-size: 1.1rem;
}

.features .feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 28px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(77, 168, 255, 0.7);
}

.feature-card h3 {
    margin-top: 16px;
    margin-bottom: 12px;
}

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

.icon-placeholder {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background-color: rgba(77, 168, 255, 0.15);
    border: 1px solid rgba(77, 168, 255, 0.4);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.icon-placeholder img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    opacity: 0.95;
}

.demo-placeholder {
    width: 100%;
    height: 360px;
    border-radius: var(--radius);
    border: 1px dashed rgba(255, 255, 255, 0.2);
    background: repeating-linear-gradient(135deg, rgba(77, 168, 255, 0.05) 0, rgba(77, 168, 255, 0.05) 12px, rgba(255, 255, 255, 0.02) 12px, rgba(255, 255, 255, 0.02) 24px);
    box-shadow: var(--shadow);
}

.how-it-works .steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.step {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(77, 168, 255, 0.7);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 16px;
}

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

.cta {
    background: radial-gradient(circle at top right, rgba(77, 168, 255, 0.4), rgba(77, 168, 255, 0));
    border: 1px solid rgba(77, 168, 255, 0.3);
    border-radius: calc(var(--radius) * 1.5);
    padding: 60px;
    text-align: center;
    box-shadow: var(--shadow);
}

.cta p {
    color: var(--muted);
    margin: 16px 0 32px;
    font-size: 1.1rem;
}

.site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 40px 5vw;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    color: var(--muted);
}

.footer-links {
    display: flex;
    gap: 18px;
}

.footer-links a {
    color: var(--muted);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-logo {
    height: 28px;
    width: auto;
    opacity: 0.9;
}

.footer-logo:hover {
    opacity: 1;
}

@media (max-width: 768px) {
    header,
    main,
    footer {
        padding: 0 24px;
    }

    .nav {
        flex-direction: column;
        gap: 12px;
        position: static;
    }

    .hero {
        padding: 60px 0 80px;
    }

    .problem,
    .cta {
        padding: 40px 28px;
    }
}

@media (max-width: 540px) {
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }
}