/* ============================================================================
 * KleverKit docs + landing — premium dark. Mobile-first (380px), zero overflow.
 * ========================================================================== */
:root {
  --bg: #07090f;
  --bg-2: #0c1018;
  --panel: #10151f;
  --panel-2: #141b28;
  --line: #1e2637;
  --line-2: #2a3448;
  --ink: #eaf0fb;
  --ink-2: #aab6cd;
  --ink-3: #6b7994;
  --brand: #7c5cff;      /* violet */
  --brand-2: #23d5ab;    /* mint */
  --brand-3: #4f9dff;    /* azure */
  --warn: #ffcf5c;
  --danger: #ff6b6b;
  --radius: 14px;
  --radius-sm: 10px;
  --maxw: 1080px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;              /* belt: never scroll the page sideways */
  background-image:
    radial-gradient(60vw 60vw at 78% -8%, rgba(124, 92, 255, 0.16), transparent 60%),
    radial-gradient(48vw 48vw at 0% 8%, rgba(35, 213, 171, 0.10), transparent 55%);
  background-repeat: no-repeat;
}
img, svg, canvas, pre, table { max-width: 100%; }
a { color: var(--brand-3); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 18px; }

/* ── Nav ──────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(7, 9, 15, 0.72);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 14px; height: 58px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; letter-spacing: -0.02em; }
.brand .logo {
  width: 26px; height: 26px; border-radius: 8px; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08), 0 6px 18px rgba(124,92,255,0.4);
}
.nav .spacer { flex: 1 1 auto; }
.nav a.navlink { color: var(--ink-2); font-size: 14px; font-weight: 600; }
.nav a.navlink:hover { color: var(--ink); text-decoration: none; }
.nav .navlinks { display: none; gap: 18px; align-items: center; }
@media (min-width: 720px) { .nav .navlinks { display: flex; } }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: var(--radius-sm); font-weight: 650; font-size: 14px;
  border: 1px solid var(--line-2); background: var(--panel-2); color: var(--ink);
  cursor: pointer; transition: transform .08s ease, border-color .15s ease, background .15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; border-color: var(--brand); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.primary {
  background: linear-gradient(135deg, var(--brand), #6a4bff);
  border-color: transparent; color: white;
  box-shadow: 0 8px 24px rgba(124, 92, 255, 0.35);
}
.btn.ghost { background: transparent; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn.wide { width: 100%; }

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero { padding: 64px 0 34px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase; color: var(--brand-2);
  border: 1px solid var(--line-2); border-radius: 999px; padding: 5px 12px; background: var(--panel);
}
.hero h1 {
  font-size: clamp(2.1rem, 8vw, 3.5rem); line-height: 1.05; letter-spacing: -0.03em;
  margin: 18px 0 14px; font-weight: 800;
  background: linear-gradient(180deg, #ffffff, #b9c4dc);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lede { font-size: clamp(1rem, 3.6vw, 1.22rem); color: var(--ink-2); max-width: 640px; margin: 0 0 24px; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .stats { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 34px; color: var(--ink-3); font-size: 13px; }
.hero .stats b { color: var(--ink); font-size: 20px; font-weight: 800; display: block; letter-spacing: -0.02em; }

/* ── Sections ─────────────────────────────────────────────────────────────── */
section { padding: 40px 0; }
.section-head { margin-bottom: 22px; }
.section-head h2 { font-size: clamp(1.5rem, 5vw, 2rem); letter-spacing: -0.02em; margin: 0 0 8px; }
.section-head p { color: var(--ink-2); margin: 0; max-width: 620px; }
.kicker { color: var(--brand-2); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }

/* ── Overflow safety ──────────────────────────────────────────────────────────
 * Grid/flex items default to min-width:auto, which lets a non-wrapping child
 * (a <pre> code block) push its track wider than the 380px viewport. Forcing
 * min-width:0 lets the track shrink so the inner overflow-x:auto scrolls INSTEAD
 * of the page. Verified at 380px via headless Chrome (scrollWidth === clientWidth). */
.grid > *, .api-item, .step, .step .body, .card, .code, .demo, .api-body { min-width: 0; }

/* ── Feature grid ─────────────────────────────────────────────────────────── */
.grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 640px) { .grid.cols-2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 860px) { .grid.cols-3 { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px;
}
.card .ic { font-size: 22px; margin-bottom: 10px; }
.card h3 { margin: 0 0 6px; font-size: 1.05rem; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--ink-2); font-size: 14px; }

/* ── Code blocks ──────────────────────────────────────────────────────────── */
.code {
  position: relative; background: #060810; border: 1px solid var(--line);
  border-radius: var(--radius-sm); margin: 0;
}
.code pre { margin: 0; padding: 16px 16px; overflow-x: auto; font-family: var(--mono); font-size: 13px; line-height: 1.62; }
.code code { font-family: var(--mono); color: #d7e0f2; white-space: pre; }
.code .copy {
  position: absolute; top: 8px; right: 8px; padding: 5px 10px; font-size: 11.5px; font-weight: 600;
  border-radius: 8px; border: 1px solid var(--line-2); background: var(--panel-2); color: var(--ink-2); cursor: pointer;
}
.code .copy:hover { color: var(--ink); border-color: var(--brand); }
.tok-key { color: #7c5cff; } .tok-fn { color: #23d5ab; } .tok-str { color: #ffcf5c; }
.tok-num { color: #ff9e64; } .tok-com { color: #5a6785; font-style: italic; } .tok-punc { color: #8b98b4; }

/* ── API reference ────────────────────────────────────────────────────────── */
.api { display: grid; grid-template-columns: 1fr; gap: 14px; }
.api-item { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.api-sig { padding: 14px 16px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 13.5px; color: var(--brand-2); overflow-x: auto; white-space: pre; }
.api-body { padding: 14px 16px; }
.api-body p { margin: 0 0 10px; color: var(--ink-2); font-size: 14px; }
.badge { display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--ink-3); margin-right: 6px; }
.badge.pure { color: var(--brand-2); border-color: rgba(35,213,171,.4); }
.badge.wallet { color: var(--brand-3); border-color: rgba(79,157,255,.4); }
.badge.server { color: var(--warn); border-color: rgba(255,207,92,.4); }

/* ── Live demo ────────────────────────────────────────────────────────────── */
.demo { background: linear-gradient(180deg, var(--panel), var(--bg-2)); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 20px; }
.demo .row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.demo label { font-size: 12.5px; color: var(--ink-3); font-weight: 600; display: block; margin-bottom: 5px; }
.demo input, .demo select {
  width: 100%; padding: 10px 12px; border-radius: var(--radius-sm); font-size: 14px;
  background: #070a12; border: 1px solid var(--line-2); color: var(--ink); font-family: var(--sans);
}
.demo .field { flex: 1 1 120px; min-width: 0; }
.pill {
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 13px; border-radius: 999px;
  font-size: 13px; font-weight: 650; border: 1px solid var(--line-2); background: var(--panel-2); color: var(--ink-2);
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); flex: 0 0 auto; }
.pill.on { color: var(--brand-2); border-color: rgba(35,213,171,.45); }
.pill.on .dot { background: var(--brand-2); box-shadow: 0 0 10px var(--brand-2); }
.demo .out {
  background: #060810; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px; font-family: var(--mono); font-size: 12.5px; color: #cdd8ef; white-space: pre-wrap;
  word-break: break-word; overflow-x: auto; min-height: 44px; margin-top: 4px;
}
.demo .split-viz { display: flex; height: 34px; border-radius: 8px; overflow: hidden; margin: 12px 0; border: 1px solid var(--line); }
.demo .split-viz .seg { display: flex; align-items: center; justify-content: center; font-size: 11.5px; font-weight: 700; color: #05070d; min-width: 2px; transition: flex-basis .3s ease; }
.demo .seg.platform { background: linear-gradient(135deg, var(--brand), #6a4bff); color: #fff; }
.demo .seg.remainder { background: linear-gradient(135deg, var(--brand-2), #1fbf9a); }
.note { font-size: 12.5px; color: var(--ink-3); margin-top: 8px; }
.gate-banner { display: flex; gap: 9px; align-items: flex-start; font-size: 12.5px; color: var(--warn); background: rgba(255,207,92,.06); border: 1px solid rgba(255,207,92,.25); border-radius: var(--radius-sm); padding: 10px 12px; margin-top: 14px; }

/* ── Steps (quickstart) ───────────────────────────────────────────────────── */
.steps { display: grid; gap: 14px; grid-template-columns: 1fr; counter-reset: step; }
.step { display: flex; gap: 14px; align-items: flex-start; }
.step .n { counter-increment: step; flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 14px; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-2)); }
.step .body { flex: 1 1 auto; min-width: 0; }
.step h4 { margin: 3px 0 8px; font-size: 1rem; }

/* ── Footer ───────────────────────────────────────────────────────────────── */
footer { border-top: 1px solid var(--line); padding: 30px 0 60px; color: var(--ink-3); font-size: 13px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; }

.anchor { scroll-margin-top: 72px; }