:root {
    --bg: #111317;
    --panel: #1b1e24;
    --panel-soft: #252932;
    --text: #f4f7fb;
    --muted: #a8b0bd;
    --line: #3a414d;
    --accent: #1684ff;
    --accent-soft: #dfefff;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    letter-spacing: 0;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 68px;
    padding: 14px clamp(20px, 5vw, 72px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(17, 19, 23, 0.94);
    backdrop-filter: blur(16px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
}

.brand img {
    width: 34px;
    height: 34px;
    border-radius: 6px;
    background: #fff;
}

.top-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    color: var(--muted);
    font-size: 14px;
}

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

.nav-cta,
.primary-action,
.secondary-action,
.price-card a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 16px;
    border: 1px solid var(--accent);
    border-radius: 6px;
    font-weight: 750;
}

.nav-cta,
.primary-action,
.price-card.featured a {
    background: var(--accent);
    color: #06111f;
}

.secondary-action,
.price-card a {
    background: transparent;
    color: var(--text);
}

.hero {
    min-height: calc(100vh - 68px);
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: center;
    padding: clamp(48px, 7vw, 90px) clamp(20px, 5vw, 72px) clamp(34px, 5vw, 62px);
    background: #111317;
}

.hero-content {
    max-width: 660px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 18px;
    font-size: clamp(52px, 9vw, 112px);
    line-height: 0.92;
    letter-spacing: 0;
}

h2 {
    margin-bottom: 14px;
    font-size: clamp(30px, 4vw, 54px);
    line-height: 1.04;
    letter-spacing: 0;
}

h3 {
    margin-bottom: 10px;
    font-size: 19px;
}

.hero-copy {
    max-width: 620px;
    color: var(--muted);
    font-size: clamp(17px, 2vw, 21px);
    line-height: 1.55;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.product-preview {
    display: grid;
    grid-template-columns: 128px minmax(0, 1fr);
    min-height: 520px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
}

.preview-sidebar {
    padding: 16px 12px;
    border-right: 1px solid var(--line);
    background: #15181d;
}

.preview-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 22px;
    font-size: 12px;
    font-weight: 800;
}

.preview-brand img {
    width: 30px;
    height: 30px;
    border-radius: 5px;
    background: #fff;
}

.preview-nav {
    display: block;
    margin-bottom: 8px;
    padding: 9px;
    border-radius: 6px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.preview-nav.active {
    background: var(--panel-soft);
    color: var(--text);
}

.preview-main {
    padding: 26px;
}

.preview-title {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 18px;
}

.preview-title span {
    font-size: 26px;
    font-weight: 850;
}

.preview-title small {
    color: var(--muted);
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 18px;
}

.tool-card,
.feature-card,
.price-card,
.roadmap-list div {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
}

.tool-card {
    min-height: 76px;
    padding: 12px;
}

.tool-card strong,
.tool-card span {
    display: block;
}

.tool-card span {
    margin-top: 8px;
    color: var(--muted);
    font-size: 12px;
}

.tool-card.active {
    border-color: var(--accent);
    outline: 1px solid var(--accent);
}

.tool-card.muted {
    opacity: 0.72;
}

.preview-panel {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #12151a;
}

.panel-line {
    width: 64%;
    height: 12px;
    margin-bottom: 12px;
    border-radius: 3px;
    background: #3c4452;
}

.panel-line.wide {
    width: 100%;
}

.panel-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 18px 0;
}

.panel-row span,
.panel-button {
    height: 38px;
    border-radius: 5px;
    background: #252b35;
}

.panel-button {
    background: var(--accent);
}

.section,
.split-section {
    padding: clamp(64px, 8vw, 110px) clamp(20px, 5vw, 72px);
}

.section-heading {
    max-width: 800px;
    margin-bottom: 32px;
}

.section-heading p,
.split-section p,
.security-copy p,
.feature-card p,
.price-card p,
.roadmap-list span {
    color: var(--muted);
    line-height: 1.55;
}

.feature-grid,
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.feature-card,
.price-card {
    padding: 20px;
}

.split-section {
    display: grid;
    grid-template-columns: minmax(0, 0.78fr) minmax(320px, 1fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: start;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.roadmap-list {
    display: grid;
    gap: 10px;
}

.roadmap-list div {
    padding: 16px;
}

.roadmap-list strong,
.roadmap-list span {
    display: block;
}

.roadmap-list span {
    margin-top: 6px;
}

.price {
    color: var(--text) !important;
    font-size: 28px;
    font-weight: 850;
}

.price-card {
    display: grid;
    gap: 10px;
    align-content: start;
}

.price-card.featured {
    border-color: var(--accent);
    outline: 1px solid var(--accent);
}

.security-copy {
    max-width: 720px;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 28px clamp(20px, 5vw, 72px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--muted);
}

.not-found {
    min-height: 100vh;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 14px;
    padding: 24px;
    text-align: center;
}

.not-found img {
    width: 72px;
    height: 72px;
    border-radius: 12px;
    background: #fff;
}

.not-found h1 {
    margin: 0;
    font-size: clamp(38px, 7vw, 72px);
}

.not-found p {
    color: var(--muted);
}

@media (max-width: 900px) {
    .site-header {
        align-items: flex-start;
    }

    .top-nav {
        display: none;
    }

    .hero,
    .split-section {
        grid-template-columns: 1fr;
    }

    .product-preview {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .preview-sidebar {
        display: none;
    }

    .feature-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .site-header {
        min-height: 62px;
        padding: 12px 16px;
    }

    .nav-cta {
        display: none;
    }

    .hero,
    .section,
    .split-section {
        padding-left: 16px;
        padding-right: 16px;
    }

    .tool-grid,
    .panel-row {
        grid-template-columns: 1fr;
    }

    .site-footer {
        display: grid;
    }
}