:root {
    --bg-primary: #0f0a1b;
    --bg-secondary: #18102f;
    --accent: #8f62ff;
    --accent-strong: #9f7aea;
    --text-primary: #f5f6ff;
    --text-secondary: rgba(245, 246, 255, 0.72);
    --border-color: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(255, 255, 255, 0.05);
    --shadow-soft: 0 20px 60px rgba(22, 8, 46, 0.45);
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --gradient-hero: linear-gradient(135deg, #2b1f4f 0%, #120a24 50%, #331a66 100%);
    --gradient-button: linear-gradient(135deg, #a07bff, #7052ff);
    --transition-base: all 0.24s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
}

.container {
    width: min(1080px, 92vw);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(16px);
    background: rgba(15, 10, 27, 0.82);
    border-bottom: 1px solid var(--border-color);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--gradient-button);
    color: var(--text-primary);
    box-shadow: var(--shadow-soft);
}

.brand-name {
    font-size: 1.05rem;
}

.primary-nav {
    position: relative;
}

.primary-nav ul {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.primary-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
    color: var(--text-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: transparent;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-primary);
}

.cta-button,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    border-radius: var(--radius-sm);
    padding: 0.75rem 1.4rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.cta-button,
.btn.primary {
    background: var(--gradient-button);
    color: var(--text-primary);
    box-shadow: 0 18px 36px rgba(144, 98, 255, 0.35);
}

.btn.primary:hover,
.cta-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 20px 42px rgba(144, 98, 255, 0.4);
}

.btn.ghost {
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    background: transparent;
}

.btn.ghost:hover {
    border-color: rgba(255, 255, 255, 0.22);
    color: var(--text-primary);
}

.section {
    padding: 5rem 0;
}

.section h2 {
    font-size: clamp(2rem, 2.8vw, 2.5rem);
    margin-bottom: 1rem;
}

.section-lead {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 6rem 0 5rem;
    background: var(--gradient-hero);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 15% 30%, rgba(159, 122, 234, 0.35), transparent 55%),
                radial-gradient(circle at 80% 20%, rgba(89, 143, 255, 0.28), transparent 55%);
    opacity: 0.9;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3rem;
    align-items: center;
}

.hero-copy h1 {
    font-size: clamp(2.4rem, 3.8vw, 3.4rem);
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.eyebrow {
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.2em;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 1.5rem;
}

.hero-lead {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

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

.hero-visual {
    display: grid;
    place-items: center;
}

.hero-card {
    background: rgba(15, 10, 27, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 2rem;
    width: min(420px, 90%);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(14px);
}

.hero-card-label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(159, 122, 234, 0.15);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.hero-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.4rem;
}

.hero-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.6rem;
    color: var(--text-secondary);
}

.overview-grid,
.features-grid {
    display: grid;
    gap: 1.8rem;
}

.overview-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.overview-grid article,
.feature-card,
.cta-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.8rem;
    box-shadow: 0 24px 48px rgba(14, 6, 30, 0.35);
}

.overview-grid article h3 {
    margin-bottom: 0.75rem;
}

.features-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature-card {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(159, 122, 234, 0.35);
}

.feature-icon {
    font-size: 2rem;
}

.cta {
    background: radial-gradient(circle at 18% 25%, rgba(159, 122, 234, 0.16), transparent 62%),
                radial-gradient(circle at 80% 70%, rgba(111, 203, 255, 0.12), transparent 62%);
}

.cta-card {
    text-align: center;
    padding: 2.6rem 2rem;
}

.cta-card h2 {
    margin-bottom: 1rem;
}

.cta-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.legal-accordion {
    display: grid;
    gap: 1rem;
}

.legal-item {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: rgba(12, 7, 24, 0.65);
    overflow: hidden;
}

.legal-toggle {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.05rem;
    padding: 1.2rem 1.6rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.legal-toggle::after {
    content: "+";
    font-size: 1.6rem;
    line-height: 1;
    transition: transform 0.2s ease;
}

.legal-toggle[aria-expanded="true"]::after {
    transform: rotate(45deg);
}

.legal-content {
    padding: 0 1.6rem 1.8rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.legal-content h3 {
    color: var(--text-primary);
    margin-top: 1.5rem;
}

.legal-content p {
    margin: 1rem 0;
}

.legal-content a {
    color: var(--accent);
}

.contact {
    background: rgba(12, 7, 24, 0.55);
    text-align: center;
}

.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 2.5rem 0;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.footer-links {
    display: flex;
    gap: 1.2rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

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

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

@media (max-width: 960px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-card {
        margin: 0 auto;
    }
}

@media (max-width: 780px) {
    .nav-toggle {
        display: flex;
    }

    .primary-nav ul {
        position: absolute;
        inset: calc(100% + 12px) auto auto 0;
        display: flex;
        flex-direction: column;
        background: rgba(12, 7, 24, 0.95);
        border: 1px solid var(--border-color);
        border-radius: 16px;
        padding: 1rem 1.4rem;
        gap: 0.8rem;
        min-width: 180px;
        box-shadow: var(--shadow-soft);
        transform: scaleY(0);
        transform-origin: top;
        opacity: 0;
        pointer-events: none;
        transition: var(--transition-base);
    }

    .primary-nav ul[data-open="true"] {
        transform: scaleY(1);
        opacity: 1;
        pointer-events: auto;
    }

    .cta-button {
        display: none;
    }

    .section {
        padding: 4rem 0;
    }
}

@media (max-width: 600px) {
    .hero {
        padding: 5rem 0 4rem;
    }

    .overview-grid article,
    .feature-card,
    .cta-card {
        padding: 1.5rem;
    }

    .legal-content {
        font-size: 0.92rem;
    }
}