/*
 * Exovo public site — all styling built on the Operator design tokens (--op-*) from
 * _content/Exovo.Ui/css/tokens.css. Never hardcode brand hex here; tokens only.
 */

/* ── Base ─────────────────────────────────────────────────────────────────── */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--op-sans);
    color: var(--op-ink);
    background: var(--op-surface);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { line-height: 1.25; font-weight: 600; }

a { color: var(--op-accent); text-decoration: none; transition: color var(--op-transition); }
a:hover { color: var(--op-accentDk); }

code, pre, .op-mono { font-family: var(--op-mono); }

.site-container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--op-sans);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--op-transition);
    text-decoration: none;
}

.btn-lg { padding: 12px 28px; font-size: 15px; }

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

.btn-ghost { background: transparent; color: var(--op-ink); border-color: var(--op-hairline); }
.btn-ghost:hover { border-color: var(--op-accent); color: var(--op-accent); }

.btn-light { background: #fff; color: var(--op-chrome); }
.btn-light:hover { background: var(--op-surfaceAlt); color: var(--op-chrome); }

.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.btn-outline-light:hover { border-color: #fff; color: #fff; }

/* ── Header ───────────────────────────────────────────────────────────────── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--op-hairlineSoft);
}

.site-header-inner {
    display: flex;
    align-items: center;
    gap: 32px;
    height: 62px;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
}

.site-brand-name {
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--op-ink);
}

.site-brand-name--light { color: #fff; }

.site-nav {
    display: flex;
    gap: 24px;
    flex: 1;
}

.site-nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--op-ink2);
    padding: 4px 0;
}

.site-nav a:hover { color: var(--op-accent); }

/* ── Hero ─────────────────────────────────────────────────────────────────── */

.hero {
    background:
        radial-gradient(1000px 420px at 80% -10%, var(--op-accentSoft), transparent),
        radial-gradient(720px 380px at 10% 0%, rgba(106, 61, 255, 0.07), transparent),
        var(--op-surface);
    border-bottom: 1px solid var(--op-hairlineSoft);
}

.hero-inner {
    padding: 88px 24px 72px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(34px, 5.4vw, 56px);
    letter-spacing: -0.03em;
    margin: 0 0 18px;
}

.hero-accent {
    background: linear-gradient(135deg, #6A3DFF, #3F5BFF 45%, #007BFF);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-sub {
    max-width: 640px;
    margin: 0 auto 30px;
    font-size: 17px;
    color: var(--op-ink2);
}

.hero-sub code {
    background: var(--op-accentSoft);
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 0.9em;
}

.hero-ctas {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-meta {
    margin-top: 34px;
    font-size: 11.5px;
    letter-spacing: 0.14em;
    color: var(--op-muted);
}

/* ── Sections ─────────────────────────────────────────────────────────────── */

.section { padding: 72px 0; }
.section-alt { background: var(--op-bg); border-block: 1px solid var(--op-hairlineSoft); }

.section-title {
    font-size: clamp(26px, 3.4vw, 34px);
    letter-spacing: -0.02em;
    text-align: center;
    margin: 0 0 10px;
}

.section-sub {
    text-align: center;
    color: var(--op-ink2);
    max-width: 560px;
    margin: 0 auto 44px;
}

/* ── Feature grid ─────────────────────────────────────────────────────────── */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.feature-tile {
    background: var(--op-surface);
    border: 1px solid var(--op-hairline);
    border-radius: 10px;
    padding: 26px 24px;
    transition: all var(--op-transition);
}

.feature-tile:hover {
    border-color: var(--op-accent);
    box-shadow: var(--op-shadow-float);
    transform: translateY(-2px);
}

.feature-icon { font-size: 26px; margin-bottom: 12px; }

.feature-tile h3 { margin: 0 0 8px; font-size: 16.5px; }
.feature-tile p { margin: 0; font-size: 14px; color: var(--op-ink2); }

/* ── Deploy band ──────────────────────────────────────────────────────────── */

.deploy-band {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.deploy-band p { color: var(--op-ink2); margin-bottom: 22px; }

.deploy-code {
    background: var(--op-chrome);
    color: #d7dbe0;
    border-radius: 10px;
    padding: 22px 26px;
    font-size: 13.5px;
    line-height: 1.9;
    overflow-x: auto;
    box-shadow: var(--op-shadow-float);
    margin: 0;
}

@media (max-width: 860px) {
    .deploy-band { grid-template-columns: 1fr; }
}

/* ── CTA band ─────────────────────────────────────────────────────────────── */

.cta-band {
    background: linear-gradient(135deg, #1a1d22 0%, #23204a 60%, #1c2a4a 100%);
    color: #fff;
}

.cta-band-inner {
    padding: 72px 24px;
    text-align: center;
}

.cta-band h2 {
    font-size: clamp(24px, 3.2vw, 32px);
    letter-spacing: -0.02em;
    margin: 0 0 26px;
}

/* ── Footer ───────────────────────────────────────────────────────────────── */

.site-footer {
    background: var(--op-chrome);
    color: var(--op-chromeIcon);
    padding: 56px 0 28px;
    font-size: 13.5px;
}

.site-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 36px;
}

@media (max-width: 760px) {
    .site-footer-grid { grid-template-columns: 1fr 1fr; }
}

.site-footer-brand p { max-width: 280px; margin: 14px 0 0; }

.site-footer-heading {
    color: #fff;
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 12px;
}

.site-footer a {
    display: block;
    color: var(--op-chromeIcon);
    padding: 3px 0;
}

.site-footer a:hover { color: #fff; }

.site-footer-legal {
    border-top: 1px solid var(--op-chromeAlt);
    padding-top: 22px;
    font-size: 12px;
}

/* ── Placeholder pages ────────────────────────────────────────────────────── */

.placeholder-page { padding: 110px 0 130px; text-align: center; }

.placeholder-page h1 { font-size: clamp(30px, 4vw, 42px); margin: 14px 0 12px; letter-spacing: -0.02em; }

.placeholder-sub { color: var(--op-ink2); max-width: 520px; margin: 0 auto 28px; }

.placeholder-chip {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--op-accent);
    background: var(--op-accentSoft);
    border-radius: 999px;
    padding: 4px 14px;
}

.placeholder-chip--error { color: var(--op-error); background: var(--op-errorSoft); }

/* ── Docs shell ───────────────────────────────────────────────────────────── */

.docs-shell {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 48px;
    padding-top: 36px;
    padding-bottom: 80px;
    align-items: start;
}

.docs-shell--with-toc {
    grid-template-columns: 240px minmax(0, 1fr) 200px;
}

@media (max-width: 1080px) {
    .docs-shell--with-toc { grid-template-columns: 240px minmax(0, 1fr); }
    .docs-toc { display: none; }
}

@media (max-width: 820px) {
    .docs-shell, .docs-shell--with-toc { grid-template-columns: 1fr; }
    .docs-sidebar { position: static; border-right: 0; border-bottom: 1px solid var(--op-hairline); padding-bottom: 18px; }
}

/* ── Docs sidebar ─────────────────────────────────────────────────────────── */

.docs-sidebar {
    position: sticky;
    top: 86px;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    padding-right: 18px;
    border-right: 1px solid var(--op-hairlineSoft);
    font-size: 13.5px;
}

.docs-sidebar-home {
    display: block;
    font-weight: 600;
    color: var(--op-ink);
    margin-bottom: 14px;
}

.docs-sidebar-home.active, .docs-sidebar-home:hover { color: var(--op-accent); }

.docs-sidebar-section { margin-bottom: 18px; }

.docs-sidebar-heading {
    font-size: 10.5px;
    letter-spacing: 0.12em;
    color: var(--op-muted);
    margin-bottom: 7px;
}

.docs-sidebar-link {
    display: block;
    color: var(--op-ink2);
    padding: 4px 10px;
    margin-left: -10px;
    border-left: 2px solid transparent;
    border-radius: 0 4px 4px 0;
}

.docs-sidebar-link:hover { color: var(--op-accent); }

.docs-sidebar-link.active {
    color: var(--op-accent);
    border-left-color: var(--op-accent);
    background: var(--op-accentSoft);
}

/* ── Docs article ─────────────────────────────────────────────────────────── */

.docs-article { min-width: 0; }

.docs-article h1 {
    font-size: 32px;
    letter-spacing: -0.02em;
    margin: 6px 0 18px;
}

.docs-article h2 {
    font-size: 22px;
    margin: 36px 0 12px;
    padding-top: 8px;
    letter-spacing: -0.01em;
}

.docs-article h3 { font-size: 17px; margin: 26px 0 10px; }

.docs-article p, .docs-article li { font-size: 15px; color: var(--op-ink2); }

.docs-article strong { color: var(--op-ink); }

.docs-article code {
    background: var(--op-surfaceAlt);
    border: 1px solid var(--op-hairlineSoft);
    border-radius: 4px;
    padding: 1.5px 6px;
    font-size: 0.86em;
    color: var(--op-ink);
}

.docs-article pre {
    background: var(--op-chrome);
    color: #d7dbe0;
    border-radius: 8px;
    padding: 16px 20px;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.7;
}

.docs-article pre code {
    background: transparent;
    border: 0;
    padding: 0;
    color: inherit;
    font-size: inherit;
}

.docs-article table {
    border-collapse: collapse;
    width: 100%;
    font-size: 14px;
    margin: 18px 0;
}

.docs-article th, .docs-article td {
    border: 1px solid var(--op-hairline);
    padding: 8px 12px;
    text-align: left;
}

.docs-article th { background: var(--op-surfaceAlt); font-weight: 600; }

.docs-article blockquote {
    margin: 18px 0;
    padding: 10px 18px;
    border-left: 3px solid var(--op-accent);
    background: var(--op-accentSoft);
    border-radius: 0 6px 6px 0;
}

.docs-article blockquote p { margin: 4px 0; }

.docs-article img { max-width: 100%; border-radius: 8px; border: 1px solid var(--op-hairline); }

.docs-breadcrumb {
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--op-muted);
    display: flex;
    gap: 8px;
}

.docs-breadcrumb a { color: var(--op-muted); }
.docs-breadcrumb a:hover { color: var(--op-accent); }

/* ── Docs TOC ─────────────────────────────────────────────────────────────── */

.docs-toc {
    position: sticky;
    top: 86px;
    font-size: 12.5px;
}

.docs-toc-heading {
    font-size: 10.5px;
    letter-spacing: 0.12em;
    color: var(--op-muted);
    margin-bottom: 8px;
}

.docs-toc-link { display: block; color: var(--op-ink2); padding: 3px 0; }
.docs-toc-link:hover { color: var(--op-accent); }
.docs-toc-l3 { padding-left: 14px; font-size: 12px; }

/* ── Docs home cards / search / lists ─────────────────────────────────────── */

.docs-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 26px;
}

.docs-card {
    display: block;
    border: 1px solid var(--op-hairline);
    border-radius: 10px;
    padding: 20px;
    color: inherit;
    transition: all var(--op-transition);
}

.docs-card:hover {
    border-color: var(--op-accent);
    box-shadow: var(--op-shadow-float);
    color: inherit;
    transform: translateY(-2px);
}

.docs-card-icon { font-size: 22px; margin-bottom: 8px; }
.docs-card h3 { margin: 0 0 6px; font-size: 15.5px; color: var(--op-ink); }
.docs-card p { margin: 0 0 10px; font-size: 13px; color: var(--op-ink2); }
.docs-card-count { font-size: 10.5px; letter-spacing: 0.1em; color: var(--op-muted); }

.docs-search { display: flex; gap: 10px; margin: 22px 0 6px; }

.docs-search-input {
    flex: 1;
    max-width: 420px;
    padding: 9px 14px;
    border: 1px solid var(--op-hairline);
    border-radius: 6px;
    font-family: var(--op-sans);
    font-size: 14px;
    color: var(--op-ink);
    background: var(--op-surface);
}

.docs-search-input:focus {
    outline: none;
    border-color: var(--op-accent);
    box-shadow: 0 0 0 3px var(--op-accentSoft);
}

.docs-section-list { padding-left: 20px; }
.docs-section-list li { margin: 8px 0; }
.docs-section-list-desc { color: var(--op-muted); font-size: 13.5px; }

.docs-notyet {
    border: 1px solid var(--op-warningSoft);
    background: var(--op-warningSoft);
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 18px;
}

.docs-notyet p { margin: 6px 0 0; }

.docs-prevnext {
    display: flex;
    gap: 16px;
    margin-top: 44px;
    padding-top: 20px;
    border-top: 1px solid var(--op-hairlineSoft);
}

.docs-prevnext-link { font-size: 14px; font-weight: 500; }