/* ==========================================================================
   SpeedCull marketing + docs site
   Single stylesheet. Plain HTML/CSS — no framework, no build step.
   ========================================================================== */

:root {
    --bg: #ffffff;
    --bg-alt: #f7f6f3;
    --bg-dark: #14141a;
    --bg-darker: #0a0a0e;
    --fg: #181820;
    --fg-soft: #4a4a55;
    --fg-mute: #62626d;
    --line: #e5e3dd;
    --line-strong: #c8c5bb;
    --accent: #246d62;
    --accent-soft: #e6f2ef;
    --accent-strong: #175449;
    --keeper: #ca8a04;
    --green: #15803d;
    --red: #b91c1c;
    --blue: #1d4ed8;
    --shadow: 0 1px 2px rgba(20, 20, 26, 0.06), 0 4px 16px rgba(20, 20, 26, 0.04);
    --shadow-strong: 0 8px 32px rgba(20, 20, 26, 0.12);
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 14px;
    --maxw: 1100px;
    --maxw-narrow: 760px;
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: "SF Mono", ui-monospace, "Menlo", "Cascadia Code", "Roboto Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

/* Public release pages share the app's evergreen identity. */
.skip-link { position: absolute; left: 12px; top: -100px; z-index: 50; background: white; padding: 12px; }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
.brand img { width: 42px; height: 42px; }
.hero-layout { display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 64px; text-align: left; }
.hero-layout h1 { font-size: clamp(3rem, 6vw, 5.4rem); letter-spacing: -.055em; line-height: 1.04; }
.hero-layout .lede { margin-left: 0; }
.hero-layout .hero-actions { justify-content: flex-start; }
.hero-note { font-size: .95rem; margin-top: 28px; }
.identity-art { text-align: center; }
.identity-art img { width: min(100%, 340px); margin: auto; }
.identity-art p { font-size: 1.3rem; font-weight: 650; margin-top: 18px; }
.identity-art span { font-weight: 400; font-size: 1rem; }
.section .left-heading { text-align: left; }
.section .eyebrow { margin-bottom: 16px; }
.section-note { max-width: 760px; margin: 36px auto 0; }
.release-panel { text-align: center; }
.policy { padding-top: 72px; padding-bottom: 80px; }
.policy .lede { font-size: 1.2rem; }
.digest { overflow-wrap: anywhere; }
.legacy-note { border-left: 4px solid var(--accent); background: var(--accent-soft); padding: 16px 20px; margin-bottom: 28px; }
.legacy-note p { margin: 0; }
@media (max-width: 760px) {
  .hero-layout { grid-template-columns: 1fr; gap: 32px; }
  .identity-art img { max-width: 180px; }
  .topnav-inner { flex-wrap: wrap; gap: 12px; }
  .topnav .topnav-links { display: flex; flex-wrap: wrap; gap: 18px; }
  .policy { padding-top: 40px; }
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

a {
    color: var(--accent-strong);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s ease, color 0.15s ease;
}
a:hover { border-bottom-color: var(--accent-strong); }

img, svg { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
    font-weight: 600;
    color: var(--fg);
    line-height: 1.25;
    margin: 0 0 0.5em;
    letter-spacing: -0.01em;
}
h1 { font-size: 2.6rem; letter-spacing: -0.02em; }
h2 { font-size: 1.7rem; margin-top: 2.4em; }
h3 { font-size: 1.2rem; margin-top: 1.8em; }
h4 { font-size: 1rem; margin-top: 1.6em; color: var(--fg-soft); }

p { margin: 0 0 1em; color: var(--fg-soft); }
p strong, li strong { color: var(--fg); font-weight: 600; }

ul, ol { padding-left: 1.4em; margin: 0 0 1em; color: var(--fg-soft); }
li { margin-bottom: 0.4em; }

code {
    font-family: var(--font-mono);
    font-size: 0.88em;
    background: var(--bg-alt);
    color: var(--fg);
    padding: 0.12em 0.42em;
    border-radius: 4px;
    border: 1px solid var(--line);
}
pre {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background: var(--bg-darker);
    color: #e6e6ea;
    padding: 14px 18px;
    border-radius: var(--radius);
    overflow-x: auto;
    line-height: 1.55;
    margin: 1em 0;
}
pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: inherit;
    font-size: inherit;
}

hr {
    border: none;
    border-top: 1px solid var(--line);
    margin: 2.5em 0;
}

/* ---------- container ---------- */

.wrap {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 24px;
}
.wrap-narrow {
    max-width: var(--maxw-narrow);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- top nav ---------- */

.topnav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--line);
}
.topnav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    max-width: var(--maxw);
    margin: 0 auto;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--fg);
    border-bottom: none;
}
.brand:hover { border-bottom: none; }
.brand-mark {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
}
.topnav-links {
    display: inline-flex;
    align-items: center;
    gap: 24px;
    list-style: none;
    padding: 0;
    margin: 0;
}
.topnav-links li { margin: 0; }
.topnav-links a {
    color: var(--fg-soft);
    font-size: 0.95rem;
    border-bottom: none;
}
.topnav-links a:hover { color: var(--fg); }
.topnav-links a.active { color: var(--fg); font-weight: 600; }

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    background: var(--fg);
    color: #fff;
    border: 1px solid var(--fg);
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.92rem;
    transition: opacity 0.15s ease;
}
.cta-button:hover {
    opacity: 0.85;
    border-bottom-color: var(--fg);
}
.cta-button.ghost {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--line-strong);
}
.cta-button.ghost:hover {
    background: var(--bg-alt);
    border-bottom-color: var(--line-strong);
}

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

.hero {
    padding: 96px 0 64px;
    background:
        radial-gradient(ellipse 800px 400px at 70% -10%, rgba(217, 119, 6, 0.07), transparent),
        var(--bg);
    text-align: center;
}
.hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.8rem);
    font-weight: 700;
    margin: 0 auto 24px;
    max-width: 18ch;
}
.hero h1 .accent { color: var(--accent-strong); }
.hero .lede {
    font-size: 1.15rem;
    color: var(--fg-soft);
    max-width: 38em;
    margin: 0 auto 32px;
}
.hero-actions {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 56px;
}
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    max-width: 760px;
    margin: 0 auto;
    padding: 0 24px;
}
.hero-stat {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 16px 18px;
    background: rgba(255, 255, 255, 0.6);
}
.hero-stat strong {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--fg);
    margin-bottom: 4px;
}
.hero-stat span {
    color: var(--fg-mute);
    font-size: 0.88rem;
}

.eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent-strong);
    margin-bottom: 12px;
}

/* ---------- generic section ---------- */

.section {
    padding: 80px 0;
}
.section-alt {
    background: var(--bg-alt);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}
.section h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-top: 0;
    margin-bottom: 12px;
    text-align: center;
}
.section .section-sub {
    text-align: center;
    max-width: 38em;
    margin: 0 auto 48px;
    color: var(--fg-soft);
}

/* ---------- feature grid ---------- */

.grid {
    display: grid;
    gap: 24px;
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--line-strong); }

.card .card-icon {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border-radius: 9px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    margin-bottom: 16px;
    font-size: 1.1rem;
}
.card h3 {
    margin-top: 0;
    margin-bottom: 8px;
    font-size: 1.1rem;
}
.card p {
    margin: 0;
    color: var(--fg-soft);
    font-size: 0.95rem;
}

/* ---------- mockup blocks ---------- */

.mockup {
    background: var(--bg-dark);
    color: #e6e6ea;
    border: 1px solid #2a2a32;
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-strong);
    overflow: hidden;
}
.mockup-bar {
    display: flex;
    gap: 6px;
    margin-bottom: 18px;
    opacity: 0.6;
}
.mockup-bar span {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #4a4a55;
}
.mockup-bar span:nth-child(1) { background: #ed6a5e; }
.mockup-bar span:nth-child(2) { background: #f4bf4f; }
.mockup-bar span:nth-child(3) { background: #61c554; }

.mockup-keeper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.mockup-pane {
    background: #20202a;
    border: 1px solid #2a2a32;
    border-radius: 8px;
    padding: 16px;
    min-height: 200px;
    display: flex;
    flex-direction: column;
}
.mockup-pane.keeper { border-color: var(--accent); }
.mockup-pane h4 {
    color: #fff;
    margin: 0 0 4px;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.mockup-pane .pane-name {
    color: #b0b0bc;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}
.mockup-pane .pane-fill {
    flex: 1;
    margin-top: 12px;
    background:
        linear-gradient(135deg, #303040 0%, #1a1a22 100%);
    border-radius: 4px;
    min-height: 130px;
}
.mockup-keeper-bar {
    margin-top: 12px;
    padding: 10px 12px;
    background: #20202a;
    border-radius: 6px;
    color: #b0b0bc;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}
.mockup-keeper-bar .kbd-row { color: #d0d0dc; }
.mockup-keeper-bar .kbd-row .kbd { font-weight: 600; color: #f4bf4f; margin-right: 8px; }
.mockup-keeper-bar .kbd-row + .kbd-row { margin-top: 4px; }

/* ---------- key / kbd ---------- */

.kbd {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--bg);
    border: 1px solid var(--line-strong);
    border-bottom-width: 2px;
    border-radius: 4px;
    padding: 1px 6px;
    color: var(--fg);
    white-space: nowrap;
}

/* ---------- callout ---------- */

.callout {
    border-left: 3px solid var(--accent);
    background: var(--accent-soft);
    padding: 14px 18px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.5em 0;
}
.callout p:last-child { margin-bottom: 0; }
.callout.green { border-color: var(--green); background: #ecfdf5; }
.callout.red { border-color: var(--red); background: #fef2f2; }
.callout.blue { border-color: var(--blue); background: #eef2ff; }
.callout strong:first-child { color: var(--fg); }

/* ---------- table ---------- */

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 0.95rem;
}
th, td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}
th {
    color: var(--fg);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--line-strong);
}
td { color: var(--fg-soft); }
td code, th code { font-size: 0.82em; }

/* ---------- docs layout ---------- */

.docs-shell {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 56px;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 56px 24px 80px;
}
.docs-side {
    position: sticky;
    top: 80px;
    align-self: start;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    padding-right: 8px;
}
.docs-side h4 {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--fg-mute);
    margin-top: 0;
    margin-bottom: 10px;
}
.docs-side ul {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
}
.docs-side li { margin: 0; }
.docs-side a {
    display: block;
    padding: 6px 12px;
    color: var(--fg-soft);
    border-radius: 6px;
    border-bottom: none;
    font-size: 0.93rem;
    line-height: 1.4;
}
.docs-side a:hover {
    background: var(--bg-alt);
    color: var(--fg);
    border-bottom: none;
}
.docs-side a.active {
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-weight: 500;
}

.docs-main {
    min-width: 0;
}
.docs-main h1 {
    font-size: 2.2rem;
    margin-top: 0;
}
.docs-main > .doc-eyebrow {
    color: var(--accent-strong);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.docs-main h2 {
    margin-top: 2.4em;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--line);
}

.doc-toc {
    background: var(--bg-alt);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px 24px;
    margin: 0 0 32px;
    font-size: 0.95rem;
}
.doc-toc h4 {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    color: var(--fg-mute);
    margin-top: 0;
    margin-bottom: 8px;
}
.doc-toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
    column-count: 2;
    column-gap: 32px;
}
.doc-toc li { margin: 4px 0; }

.docs-pager {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--line);
}
.docs-pager a {
    flex: 1;
    padding: 14px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    color: var(--fg);
    border-bottom-color: var(--line);
    transition: border-color 0.15s ease;
}
.docs-pager a:hover {
    border-color: var(--line-strong);
    border-bottom-color: var(--line-strong);
}
.docs-pager a small {
    display: block;
    color: var(--fg-mute);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}
.docs-pager a.next { text-align: right; }

/* ---------- docs hub ---------- */

.docs-hub-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 32px;
}
.docs-hub-grid a {
    display: block;
    padding: 22px 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--fg);
    border-bottom: 1px solid var(--line);
    transition: border-color 0.15s ease, transform 0.15s ease;
}
.docs-hub-grid a:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}
.docs-hub-grid a strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 4px;
}
.docs-hub-grid a span {
    color: var(--fg-soft);
    font-size: 0.92rem;
}

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

footer.site-footer {
    border-top: 1px solid var(--line);
    background: var(--bg-alt);
    padding: 40px 24px 56px;
    color: var(--fg-mute);
    font-size: 0.9rem;
}
.footer-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 24px;
    align-items: start;
}
.footer-inner ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 20px;
}
.footer-inner ul li { margin: 0; }
.footer-inner a {
    color: var(--fg-soft);
    border-bottom: none;
}
.footer-inner a:hover { color: var(--fg); }

/* ---------- safety badge row ---------- */

.safety-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin: 32px 0;
}
.safety-item {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px 24px;
    background: var(--bg);
}
.safety-item .safety-icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--green);
    color: #fff;
    border-radius: 50%;
    margin-bottom: 12px;
    font-weight: 700;
}
.safety-item h4 { margin: 0 0 4px; color: var(--fg); }
.safety-item p { margin: 0; font-size: 0.92rem; }

/* ---------- key flow / stepper ---------- */

.flow {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin: 40px 0;
}
.flow-step {
    text-align: center;
    padding: 18px 12px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    position: relative;
}
.flow-step .step-num {
    display: inline-flex;
    width: 26px;
    height: 26px;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 10px;
}
.flow-step h4 { margin: 0 0 4px; font-size: 0.95rem; }
.flow-step p { margin: 0; font-size: 0.82rem; color: var(--fg-mute); }

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

@media (max-width: 900px) {
    .grid-3, .grid-4, .docs-hub-grid { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
    .hero-stats { grid-template-columns: 1fr; }
    .safety-row { grid-template-columns: 1fr; }
    .flow { grid-template-columns: 1fr 1fr; }
    .mockup-keeper { grid-template-columns: 1fr; }
    .docs-shell {
        grid-template-columns: 1fr;
        gap: 24px;
        padding-top: 32px;
    }
    .docs-side {
        position: static;
        max-height: none;
        border-bottom: 1px solid var(--line);
        padding-bottom: 16px;
    }
    .doc-toc ul { column-count: 1; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-inner ul { flex-wrap: wrap; }
    .topnav-links { display: none; }
    .hero { padding: 64px 0 48px; }
    .section { padding: 56px 0; }
}