:root {
    color-scheme: light dark;
    --bg: #f5f5f7;
    --surface: rgba(255, 255, 255, 0.78);
    --surface-strong: #ffffff;
    --text: #1d1d1f;
    --muted: #6e6e73;
    --border: rgba(0, 0, 0, 0.10);
    --primary: #0071e3;
    --primary-dark: #005bb5;
    --shadow: rgba(0, 0, 0, 0.12);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #000000;
        --surface: rgba(28, 28, 30, 0.74);
        --surface-strong: #1c1c1e;
        --text: #f5f5f7;
        --muted: #a1a1a6;
        --border: rgba(255, 255, 255, 0.16);
        --primary: #0a84ff;
        --primary-dark: #409cff;
        --shadow: rgba(0, 0, 0, 0.45);
    }
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 18% 8%, rgba(0, 113, 227, 0.16), transparent 28rem),
        radial-gradient(circle at 82% 18%, rgba(52, 199, 89, 0.12), transparent 24rem),
        var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", sans-serif;
    line-height: 1.5;
}

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

a:hover {
    color: var(--primary);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px 40px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}

.app-icon,
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.app-icon img {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}

.language-link {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text);
    background: color-mix(in srgb, var(--surface-strong) 70%, transparent);
}

.icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: color-mix(in srgb, var(--primary) 11%, transparent);
}

.icon svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

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

.hero {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
    gap: 46px;
    align-items: center;
    width: min(1180px, calc(100% - 48px));
    min-height: calc(100svh - 72px);
    margin: 0 auto;
    padding: 56px 0 72px;
}

.hero-copy {
    padding-top: 18px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

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

h1 {
    margin-bottom: 20px;
    font-size: clamp(48px, 7vw, 86px);
    line-height: 0.96;
    letter-spacing: -0.04em;
}

h2 {
    margin-bottom: 18px;
    font-size: clamp(34px, 5vw, 58px);
    line-height: 1.02;
    letter-spacing: -0.035em;
}

h3 {
    margin-bottom: 8px;
    font-size: 21px;
    letter-spacing: -0.015em;
}

.lead {
    max-width: 640px;
    color: var(--muted);
    font-size: clamp(20px, 2vw, 26px);
    line-height: 1.28;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border-radius: 999px;
    font-weight: 650;
}

.button.primary {
    background: var(--primary);
    color: white;
}

.button.primary:hover {
    background: var(--primary-dark);
    color: white;
}

.button.secondary {
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
}

.product-panel {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 28px;
    background: var(--surface-strong);
    box-shadow: 0 30px 80px var(--shadow);
}

.window-bar {
    display: flex;
    gap: 8px;
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.window-bar span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f57;
}

.window-bar span:nth-child(2) {
    background: #ffbd2e;
}

.window-bar span:nth-child(3) {
    background: #28c840;
}

.app-preview {
    display: grid;
    grid-template-columns: 168px minmax(0, 1fr);
    min-height: 430px;
}

.app-preview aside {
    padding: 22px;
    border-right: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface-strong) 82%, var(--bg));
    color: var(--muted);
}

.app-preview aside strong {
    display: block;
    margin-bottom: 18px;
    color: var(--text);
}

.app-preview section {
    padding: 22px;
}

.toolbar-line,
.grid-preview {
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface-strong) 88%, var(--bg));
}

.toolbar-line {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 12px;
    color: var(--muted);
    font-size: 13px;
}

.toolbar-line span:first-child {
    color: var(--text);
    font-weight: 700;
}

.grid-preview {
    display: grid;
    grid-template-columns: 56px 120px minmax(0, 1fr);
    overflow: hidden;
    border-radius: 14px;
    font-family: "SF Mono", ui-monospace, Menlo, monospace;
    font-size: 13px;
}

.grid-preview span {
    overflow: hidden;
    min-height: 46px;
    padding: 13px 14px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.grid-preview span:nth-child(-n+3) {
    color: var(--muted);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
    font-weight: 700;
}

.section {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
    padding: 96px 0;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 34px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.feature-grid article,
.steps li,
.doc-card {
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.feature-grid article {
    padding: 24px;
}

.feature-grid article p,
.split p,
.doc-card p,
.legal-content p,
.legal-content li,
footer p {
    color: var(--muted);
}

.compact {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.split {
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1fr);
    gap: 50px;
    align-items: start;
}

.steps {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.steps li {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 18px;
    padding: 18px 20px;
}

.steps span {
    color: var(--muted);
}

.doc-hero,
.legal-content {
    width: min(880px, calc(100% - 48px));
    margin: 0 auto;
}

.doc-hero {
    padding: 72px 0 32px;
}

.legal-content {
    padding-bottom: 88px;
}

.doc-card {
    margin: 18px 0;
    padding: 24px;
}

.legal-content h2 {
    margin-top: 36px;
    font-size: 28px;
}

.contact-line {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    font-weight: 700;
}

footer {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
    padding: 42px 0 56px;
    border-top: 1px solid var(--border);
}

@media (max-width: 900px) {
    .site-header {
        align-items: flex-start;
        padding: 14px 24px;
    }

    .site-header nav {
        flex-wrap: wrap;
        justify-content: flex-end;
        gap: 12px;
    }

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

    .hero {
        min-height: auto;
        padding-top: 38px;
    }

    .product-panel {
        border-radius: 20px;
    }

    .app-preview {
        grid-template-columns: 1fr;
    }

    .app-preview aside {
        display: none;
    }

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

    footer {
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .site-header {
        position: static;
        flex-direction: column;
    }

    nav {
        align-items: flex-start;
    }

    .hero,
    .section,
    .doc-hero,
    .legal-content,
    footer {
        width: min(100% - 32px, 1180px);
    }

    .grid-preview {
        grid-template-columns: 44px 82px minmax(0, 1fr);
        font-size: 12px;
    }

    .steps li {
        grid-template-columns: 1fr;
        gap: 6px;
    }
}