/* =========================================================
   NekoLabs — landing page
   Dark, flat surfaces, thin borders, tight radii. Linear's
   precision applied to a REST API product page.
   ========================================================= */

:root {
    --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

    --bg: #101011;
    --surface: #171719;
    --elevated: #1d1d20;

    --border: #29292d;
    --border-soft: #212125;
    --border-strong: #38383e;

    --fg: #f5f5f5;
    --fg-2: #b9b9c0;
    --fg-3: #85858d;
    --fg-4: #63636b;
    --fg-5: #4a4a51;

    --accent: #8b7cf6;
    --accent-strong: #a496ff;
    --accent-soft: rgba(139, 124, 246, 0.12);
    --accent-line: rgba(139, 124, 246, 0.38);

    --ok: #4cc38a;

    --radius-sm: 4px;
    --radius: 6px;
    --radius-lg: 9px;

    color-scheme: dark;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

html, body {
    margin: 0;
    padding: 0;
    color: var(--fg-3);
    font-family: var(--font);
    font-size: 13.5px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html { font-size: 16px; }

body { min-height: 100vh; background: var(--bg); }

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

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

button { font: inherit; cursor: pointer; }

::selection { background: rgba(139, 124, 246, 0.28); color: var(--fg); }

:focus-visible { outline: 2px solid var(--accent-line); outline-offset: 2px; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2c2c31; border: 2px solid var(--bg); border-radius: 99px; }

.container {
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 0 28px;
}

/* ---------- header ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(16, 16, 17, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-soft);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 52px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--fg);
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: -0.015em;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border: 1px solid var(--fg);
    border-radius: 6px;
    background: var(--fg);
    overflow: hidden;
}

.brand-mark img {
    display: block;
    width: 20px;
    height: 20px;
    object-fit: contain;
}

.nav { display: flex; align-items: center; gap: 2px; }

.nav a {
    padding: 5px 9px;
    border-radius: var(--radius);
    color: var(--fg-3);
    font-size: 12.5px;
    font-weight: 450;
    transition: background-color 0.12s ease, color 0.12s ease;
}

.nav a:hover { background: var(--elevated); color: var(--fg); }

/* ---------- hero ---------- */

.hero {
    padding: 84px 0 64px;
    border-bottom: 1px solid var(--border-soft);
}

.hero-inner { max-width: 46rem; }

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.01em;
    color: var(--fg-3);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 99px;
    padding: 3px 11px 3px 8px;
}

.eyebrow .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ok);
    box-shadow: 0 0 0 3px rgba(76, 195, 138, 0.14);
}

.hero h1 {
    margin: 22px 0 0;
    color: var(--fg);
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    line-height: 1.06;
    font-weight: 600;
    letter-spacing: -0.04em;
    text-wrap: balance;
}

.hero p {
    margin: 18px 0 0;
    max-width: 40rem;
    color: var(--fg-3);
    font-size: 14.5px;
    line-height: 1.7;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 34px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--fg-2);
    font-size: 12.5px;
    font-weight: 500;
    transition: background-color 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}

.btn:hover {
    background: var(--elevated);
    border-color: var(--border-strong);
    color: var(--fg);
}

.btn.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.btn.primary:hover {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
    color: #fff;
}

/* ---------- stats ---------- */

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    max-width: 40rem;
    margin-top: 36px;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    background: var(--surface);
    overflow: hidden;
}

.stat {
    padding: 13px 16px;
    border-left: 1px solid var(--border-soft);
}

.stat:first-child { border-left: 0; }

.stat span {
    display: block;
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--fg-5);
}

.stat strong {
    display: block;
    margin-top: 4px;
    color: var(--fg);
    font-family: var(--font-mono);
    font-size: 19px;
    font-weight: 500;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
    line-height: 1.35;
}

/* ---------- sections ---------- */

.section { padding: 56px 0; }

.section-alt {
    background: #131315;
    border-top: 1px solid var(--border-soft);
    border-bottom: 1px solid var(--border-soft);
}

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
}

.section-head h2 {
    color: var(--fg);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.025em;
}

.section-head p { color: var(--fg-4); font-size: 12.5px; }

/* feature grid: one panel, internal separators */

.cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    background: var(--border-soft);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card {
    padding: 20px;
    background: var(--surface);
    transition: background-color 0.12s ease;
}

.card:hover { background: #1a1a1d; }

.card-icon {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--elevated);
    color: var(--fg-2);
}

.card-icon svg { width: 14px; height: 14px; }

.card h3 {
    margin: 13px 0 0;
    color: var(--fg);
    font-size: 13px;
    font-weight: 550;
    letter-spacing: -0.01em;
}

.card p {
    margin: 5px 0 0;
    color: var(--fg-4);
    font-size: 12.5px;
    line-height: 1.65;
}

@media (min-width: 640px) {
    .cards { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .cards { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- steps ---------- */

.steps {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr;
    gap: 26px;
    margin: 0;
    padding: 0;
}

.step { position: relative; padding-left: 38px; }

.step-num {
    position: absolute;
    left: 0;
    top: 1px;
    display: grid;
    place-items: center;
    width: 26px;
    height: 21px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--fg-4);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
}

.step h3 {
    color: var(--fg);
    font-size: 13px;
    font-weight: 550;
    letter-spacing: -0.01em;
}

.step p {
    margin: 5px 0 0;
    color: var(--fg-4);
    font-size: 12.5px;
    line-height: 1.65;
}

.step code {
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--fg-2);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1px 5px;
}

@media (min-width: 768px) {
    .steps { grid-template-columns: repeat(3, 1fr); gap: 32px; }
}

/* ---------- footer ---------- */

.site-footer {
    border-top: 1px solid var(--border-soft);
    padding: 24px 0 36px;
}

.site-footer .container {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--fg-5);
    font-size: 11.5px;
}

.footer-links {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}

.footer-links a {
    color: var(--fg-3);
    transition: color 0.12s ease;
}

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

/* ---------- responsive ---------- */

@media (max-width: 639px) {
    .container { padding: 0 20px; }
    .hero { padding: 52px 0 44px; }
    .hero p { font-size: 13.5px; }
    .stats { grid-template-columns: 1fr; }
    .stat { border-left: 0; border-top: 1px solid var(--border-soft); }
    .stat:first-child { border-top: 0; }
    .section { padding: 40px 0; }
    .site-footer .container { justify-content: center; text-align: center; }
    .footer-links { margin-left: 0; justify-content: center; }
    .nav a.nav-docs { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .card, .btn, .nav a { transition: none; }
}