:root {
    color-scheme: dark;
    --bg: #07111f;
    --panel: #0d1728;
    --card: #101b2f;
    --card-2: #0a1527;
    --line: rgba(255,255,255,.08);
    --text: #f8fafc;
    --muted: #aab6cc;
    --soft: #d7def0;
    --purple: #8b5cf6;
    --blue: #3b82f6;
    --cyan: #06b6d4;
    --green: #22c55e;
    --shadow: 0 24px 80px rgba(0,0,0,.45);
    --radius: 18px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: "Segoe UI Variable", "Inter", "Segoe UI", system-ui, sans-serif;
    background:
        radial-gradient(circle at 18% 0%, rgba(139,92,246,.22), transparent 32rem),
        radial-gradient(circle at 88% 12%, rgba(59,130,246,.16), transparent 30rem),
        var(--bg);
    color: var(--text);
}

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

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(1180px, calc(100% - 32px));
    margin: 16px auto 0;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(7,17,31,.78);
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 70px rgba(0,0,0,.32);
}

.brand,
.header-actions,
.nav,
.hero-buttons,
.site-footer {
    display: flex;
    align-items: center;
}

.brand {
    gap: 12px;
    font-weight: 800;
    letter-spacing: 0;
    white-space: nowrap;
}

.brand strong {
    background: linear-gradient(90deg, var(--purple), var(--blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.brand-mark {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    background: linear-gradient(135deg, var(--purple), var(--blue));
    box-shadow: 0 10px 30px rgba(59,130,246,.25);
}

.brand-mark span {
    width: 18px;
    height: 22px;
    border: 3px solid #fff;
    border-radius: 4px;
    position: relative;
}

.brand-mark span::before {
    content: "";
    position: absolute;
    left: 3px;
    top: -10px;
    width: 8px;
    height: 8px;
    border: 3px solid #fff;
    border-bottom: 0;
}

.nav {
    gap: 18px;
    color: var(--muted);
    font-size: 14px;
}

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

.header-actions { gap: 10px; }

select {
    appearance: none;
    min-width: 112px;
    padding: 11px 34px 11px 14px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background:
        linear-gradient(45deg, transparent 50%, #dce7ff 50%) right 18px center / 7px 7px no-repeat,
        linear-gradient(135deg, var(--card), #0b1930);
    color: var(--text);
    font: inherit;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-height: 54px;
    padding: 0 22px;
    border-radius: 15px;
    border: 1px solid var(--line);
    font-weight: 800;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.button:hover {
    transform: translateY(-2px);
    border-color: rgba(255,255,255,.18);
}

.button span {
    color: rgba(255,255,255,.7);
    font-weight: 600;
    font-size: 13px;
}

.button-small {
    min-height: 42px;
    padding-inline: 16px;
    background: #101b2f;
}

.button-primary {
    background: linear-gradient(135deg, var(--green), var(--cyan), var(--blue));
    box-shadow: 0 18px 48px rgba(34,197,94,.18);
}

.button-muted { background: linear-gradient(135deg, var(--card), #17243b); }

.section-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.hero {
    min-height: calc(100vh - 96px);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
    align-items: center;
    gap: 48px;
    padding: 72px 0 44px;
}

.eyebrow {
    width: fit-content;
    margin: 0 0 18px;
    padding: 8px 12px;
    border: 1px solid rgba(139,92,246,.26);
    border-radius: 999px;
    color: #c4b5fd;
    background: rgba(139,92,246,.12);
    font-size: 13px;
    font-weight: 800;
}

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

h1 {
    max-width: 760px;
    margin-bottom: 22px;
    font-size: clamp(42px, 6vw, 76px);
    line-height: .98;
    letter-spacing: 0;
}

h2 {
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.05;
    margin-bottom: 16px;
}

h3 { font-size: 21px; }

.lead,
.split p,
.security p,
.pricing-copy p,
.contact p {
    color: var(--muted);
    font-size: 18px;
    line-height: 1.7;
}

.hero-buttons {
    flex-wrap: wrap;
    gap: 14px;
    margin: 32px 0 18px;
}

.hero-note {
    color: var(--muted);
    font-size: 14px;
}

.hero-visual {
    position: relative;
    min-height: 520px;
    display: grid;
    place-items: center;
}

.hero-visual img {
    width: min(100%, 560px);
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 28px 50px rgba(0,0,0,.38));
}

.product-panel {
    position: absolute;
    inset: 20px 20px auto auto;
    width: min(96%, 470px);
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(16,27,47,.86), rgba(7,17,31,.72));
    box-shadow: var(--shadow);
    z-index: 1;
}

.window-dots {
    display: flex;
    gap: 7px;
    margin-bottom: 18px;
}

.window-dots span {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #31476b;
}

.mock-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(9,20,38,.72);
    color: var(--soft);
    font-size: 13px;
}

.mock-row.active { border-color: rgba(59,130,246,.6); }

.folder-icon {
    width: 18px;
    height: 14px;
    border: 1px solid #cfe2ff;
    border-radius: 2px;
    position: relative;
}

.folder-icon::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 1px;
    width: 8px;
    height: 5px;
    border: 1px solid #cfe2ff;
    border-bottom: 0;
    border-radius: 2px 2px 0 0;
}

.progress-line {
    height: 10px;
    overflow: hidden;
    border-radius: 999px;
    background: #10213a;
}

.progress-line span {
    display: block;
    width: 74%;
    height: 100%;
    background: linear-gradient(90deg, var(--green), var(--cyan));
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 72px;
}

.stats article,
.features article,
.ui-card,
.price-card,
.faq details,
.security,
.contact {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(13,23,40,.82);
    box-shadow: 0 18px 60px rgba(0,0,0,.24);
}

.stats article {
    padding: 22px;
}

.stats strong {
    display: block;
    margin-bottom: 8px;
    font-size: 22px;
}

.stats span,
.features p,
.faq p,
.price-card li,
.security li {
    color: var(--muted);
    line-height: 1.65;
}

.split,
.pricing,
.security,
.contact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: center;
    padding: 32px;
    margin-bottom: 24px;
}

.ui-card {
    padding: 24px;
}

.ui-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.ui-card-header span {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--purple), var(--blue));
    font-weight: 900;
}

.ui-card-header small {
    display: block;
    color: var(--muted);
    margin-top: 4px;
}

.folder-list {
    display: flex;
    gap: 10px;
    overflow: hidden;
    padding-bottom: 14px;
    border-bottom: 4px solid #13233a;
}

.folder-list span {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 150px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #0b1930;
}

.folder-list b {
    display: grid;
    place-items: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #16243b;
    color: #fff;
}

.ui-card button {
    width: 100%;
    margin-top: 24px;
    min-height: 56px;
    border: 0;
    border-radius: 14px;
    color: #fff;
    font-weight: 900;
    background: linear-gradient(135deg, var(--green), var(--blue));
}

.features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 24px auto 72px;
}

.features article { padding: 24px; }

.feature-icon {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 24px;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, var(--purple), var(--blue));
    font-weight: 900;
}

.security ul,
.price-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.security li,
.price-card li {
    padding: 12px 0 12px 34px;
    position: relative;
}

.security li::before,
.price-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--green), var(--cyan));
}

.price-card {
    padding: 28px;
}

.price {
    margin: 18px 0;
    color: var(--muted);
}

.price span {
    color: var(--text);
    font-size: 54px;
    font-weight: 900;
    margin-right: 8px;
}

.price-card .button {
    width: 100%;
    margin-top: 22px;
}

.faq {
    margin-top: 72px;
    margin-bottom: 24px;
}

.faq h2 { margin-bottom: 22px; }

.faq details {
    padding: 20px 22px;
    margin-bottom: 12px;
}

.faq summary {
    cursor: pointer;
    font-weight: 900;
}

.faq p { margin: 12px 0 0; }

.contact {
    margin-top: 72px;
    margin-bottom: 48px;
}

.site-footer {
    justify-content: space-between;
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 42px;
    color: var(--muted);
}

@media (max-width: 920px) {
    .nav { display: none; }
    .hero,
    .split,
    .pricing,
    .security,
    .contact {
        grid-template-columns: 1fr;
    }
    .hero {
        min-height: auto;
        padding-top: 48px;
    }
    .stats,
    .features {
        grid-template-columns: 1fr;
    }
    .hero-visual {
        min-height: 420px;
    }
}

@media (max-width: 620px) {
    .site-header {
        align-items: flex-start;
        flex-direction: column;
    }
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
    .button-small {
        flex: 1;
    }
    h1 {
        font-size: 42px;
    }
    .split,
    .pricing,
    .security,
    .contact {
        padding: 22px;
    }
}