/* QA Automation Labs — API Playground · premium vanilla UI
   Dark-mode-first, glassmorphism, gradient accents. Zero dependencies. */

:root {
  --bg: #070b16;
  --bg-2: #0b1120;
  --grid: rgba(120, 160, 220, .05);
  --surface: rgba(19, 27, 46, .55);
  --surface-solid: #111a30;
  --border: rgba(130, 160, 220, .14);
  --border-strong: rgba(130, 160, 220, .28);
  --text: #e8eefb;
  --text-dim: #9fb0cc;
  --text-faint: #6c7c99;
  --accent: #22d3ee;
  --accent-2: #8b5cf6;
  --accent-3: #38bdf8;
  --brand: #00bbee;
  --glow: rgba(34, 211, 238, .35);
  --ok: #34d399; --get: #38bdf8; --post: #34d399; --put: #fbbf24; --patch: #a78bfa; --del: #f87171;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px -20px rgba(0,0,0,.7);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
[data-theme="light"] {
  --bg: #eef2fa; --bg-2: #ffffff; --grid: rgba(30,60,120,.05);
  --surface: rgba(255,255,255,.75); --surface-solid: #ffffff;
  --border: rgba(20,40,90,.12); --border-strong: rgba(20,40,90,.22);
  --text: #0f1729; --text-dim: #47566f; --text-faint: #8090aa;
  --glow: rgba(0,150,200,.2);
  --shadow: 0 20px 50px -24px rgba(30,50,110,.35);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans); background: var(--bg); color: var(--text);
  line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden;
  background-image:
    radial-gradient(70% 55% at 80% -5%, rgba(139,92,246,.16), transparent 60%),
    radial-gradient(60% 45% at 5% 0%, rgba(34,211,238,.14), transparent 55%),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: auto, auto, 46px 46px, 46px 46px;
  background-attachment: fixed;
}
a { color: inherit; text-decoration: none; }
::selection { background: var(--glow); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
h2.section-title { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; letter-spacing: -.02em; margin: 10px 0 6px; }
.section-sub { color: var(--text-dim); max-width: 62ch; font-size: 16px; }
section { padding: 64px 0; position: relative; }
.gradient-text { background: linear-gradient(100deg, var(--accent), var(--accent-2) 55%, var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- Site header (mirrors qaautomationlabs.com: white logo bar + dark nav) ---------- */
#qa-site-header { position: relative; z-index: 100; }
#qa-site-header .qa-logo-bar { background: #fff; border-bottom: 1px solid #e9edf4; }
#qa-site-header .qa-logo-inner { display: flex; align-items: center; justify-content: space-between; padding: 15px 24px; }
#qa-site-header .qa-logo-link img { height: 36px; width: auto; display: block; }
#qa-site-header .qa-navbar { background: #12182a; }
#qa-site-header .qa-navbar-inner { display: flex; align-items: center; justify-content: space-between; padding: 0 24px; gap: 12px; }
#qa-site-header .qa-nav { display: flex; flex-wrap: wrap; }
#qa-site-header .qa-nav a { color: rgba(255, 255, 255, .82); font-weight: 600; font-size: 14.5px; padding: 15px 15px; transition: .18s; border-bottom: 2px solid transparent; }
#qa-site-header .qa-nav a:hover, #qa-site-header .qa-nav a:focus { color: #fff; }
#qa-site-header .qa-nav a.active { color: #fff; border-bottom-color: var(--brand); }
#qa-site-header .qa-theme-btn { background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16); color: #fff; width: 38px; height: 38px; border-radius: 9px; cursor: pointer; font-size: 15px; flex-shrink: 0; transition: .18s; }
#qa-site-header .qa-theme-btn:hover { background: rgba(255, 255, 255, .16); }
#qa-site-header .qa-nav-toggle { display: none; background: none; border: none; font-size: 26px; line-height: 1; color: var(--brand); cursor: pointer; }
@media (max-width: 900px) {
  #qa-site-header .qa-nav-toggle { display: block; }
  #qa-site-header .qa-navbar-inner { flex-wrap: wrap; padding-bottom: 8px; }
  #qa-site-header .qa-nav { display: none; width: 100%; flex-direction: column; order: 3; }
  #qa-site-header .qa-nav.open { display: flex; }
  #qa-site-header .qa-nav a { padding: 12px 2px; width: 100%; border-bottom: 1px solid rgba(255, 255, 255, .07); }
  #qa-site-header .qa-nav a.active { border-bottom-color: rgba(255, 255, 255, .07); color: var(--brand); }
  #qa-site-header .qa-theme-btn { margin: 8px 0; }
}

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 11px; font-weight: 700; font-size: 14px; cursor: pointer; border: 1px solid var(--border-strong); background: var(--surface); color: var(--text); transition: .2s; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); border-color: var(--accent); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-3)); color: #041018; border: none; box-shadow: 0 12px 30px -10px var(--glow); }
.btn-primary:hover { box-shadow: 0 16px 40px -8px var(--glow); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 7px 12px; font-size: 12.5px; border-radius: 9px; }

/* ---------- Hero ---------- */
.hero { padding: 90px 0 60px; text-align: center; }
.hero h1 { font-size: clamp(38px, 6.4vw, 78px); font-weight: 900; letter-spacing: -.035em; line-height: 1.02; }
.hero .sub { margin: 22px auto 0; max-width: 60ch; font-size: clamp(16px, 2vw, 20px); color: var(--text-dim); }
.badges { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 30px 0 34px; }
.badge { display: inline-flex; align-items: center; gap: 7px; padding: 7px 14px; border-radius: 100px; font-size: 13px; font-weight: 600; background: var(--surface); border: 1px solid var(--border); color: var(--text-dim); backdrop-filter: blur(6px); }
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ---------- Dashboard stat strip ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 8px; }
.stat { position: relative; padding: 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(10px); overflow: hidden; }
.stat::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); opacity: .8; }
.stat .num { font-size: 34px; font-weight: 900; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat .lbl { color: var(--text-dim); font-size: 13px; font-weight: 600; margin-top: 2px; }
.stat .spark { position: absolute; right: 14px; top: 16px; font-size: 18px; opacity: .5; }

/* ---------- Category cards ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; margin-top: 34px; }
.cat-card { position: relative; padding: 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(8px); cursor: pointer; transition: .22s; overflow: hidden; }
.cat-card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow); }
.cat-card::after { content: ""; position: absolute; width: 130px; height: 130px; right: -50px; top: -50px; border-radius: 50%; background: radial-gradient(circle, var(--cc, var(--accent)), transparent 70%); opacity: .16; }
.cat-ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 20px; margin-bottom: 14px; background: color-mix(in srgb, var(--cc, var(--accent)) 22%, transparent); color: var(--cc, var(--accent)); }
.cat-card h3 { font-size: 16px; font-weight: 700; }
.cat-card p { font-size: 13px; color: var(--text-dim); margin-top: 3px; min-height: 34px; }
.chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 12px; }
.chip { font-family: var(--mono); font-size: 10.5px; font-weight: 700; padding: 2px 7px; border-radius: 6px; letter-spacing: .04em; }
.m-GET { color: var(--get); background: color-mix(in srgb, var(--get) 16%, transparent); }
.m-POST { color: var(--post); background: color-mix(in srgb, var(--post) 16%, transparent); }
.m-PUT { color: var(--put); background: color-mix(in srgb, var(--put) 16%, transparent); }
.m-PATCH { color: var(--patch); background: color-mix(in srgb, var(--patch) 16%, transparent); }
.m-DELETE { color: var(--del); background: color-mix(in srgb, var(--del) 16%, transparent); }

/* ---------- Quickstart + How it works ---------- */
.quickstart { display: grid; grid-template-columns: 1fr 1fr auto; gap: 22px; align-items: center; padding: 22px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border-strong); backdrop-filter: blur(10px); }
.qs-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--text-faint); margin-bottom: 8px; }
.qs-code { display: flex; align-items: center; gap: 10px; background: #05080f; border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px; }
[data-theme="light"] .qs-code { background: #0b1120; }
.qs-code code { font-family: var(--mono); font-size: 13px; color: var(--accent); overflow-x: auto; white-space: nowrap; flex: 1; }
.qs-badges { display: flex; flex-direction: column; gap: 8px; }
.qs-pill { font-size: 12.5px; font-weight: 600; color: var(--text-dim); white-space: nowrap; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 20px; }
.step { position: relative; padding: 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.step-n { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #04121a; font-weight: 900; margin-bottom: 10px; }
.step h4 { font-size: 15.5px; font-weight: 700; }
.step p { font-size: 13px; color: var(--text-dim); margin-top: 4px; }

/* category card extras */
.start-badge { position: absolute; top: 14px; right: 14px; z-index: 3; font-size: 10.5px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; color: #04121a; background: linear-gradient(135deg, var(--accent), var(--accent-3)); padding: 4px 9px; border-radius: 100px; }
.cat-practice { font-size: 12px; color: var(--text-faint); margin-top: 10px; line-height: 1.4; }
.ep-count { font-size: 10.5px; font-weight: 700; color: var(--text-faint); margin-left: auto; align-self: center; }

/* method legend */
.method-legend { display: flex; flex-wrap: wrap; gap: 10px 14px; margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--border); font-size: 11.5px; color: var(--text-faint); }
.method-legend span { display: inline-flex; align-items: center; gap: 5px; }
.method-legend b { font-family: var(--mono); font-size: 10px; font-weight: 800; }

/* beginner tip */
.beginner-tip { font-size: 13px; color: var(--text-dim); background: color-mix(in srgb, var(--accent) 10%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent); border-radius: 11px; padding: 11px 14px; margin-bottom: 16px; line-height: 1.5; }
.beginner-tip b { color: var(--text); }

/* ---------- Explorer ---------- */
.explorer { display: grid; grid-template-columns: 320px 1fr; gap: 20px; margin-top: 30px; align-items: start; }
.ex-side { position: sticky; top: 80px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(10px); max-height: calc(100vh - 110px); display: flex; flex-direction: column; overflow: hidden; }
.ex-search { padding: 14px; border-bottom: 1px solid var(--border); }
.ex-search input { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg-2); color: var(--text); font-size: 13.5px; font-family: var(--sans); }
.ex-search input:focus { outline: none; border-color: var(--accent); }
.ex-filter { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.ex-filter button { font-family: var(--mono); font-size: 10.5px; font-weight: 700; padding: 4px 9px; border-radius: 7px; border: 1px solid var(--border); background: transparent; color: var(--text-dim); cursor: pointer; }
.ex-filter button.on { border-color: var(--accent); color: var(--text); }
.ex-list { overflow-y: auto; padding: 8px; flex: 1; }
.ex-group-title { font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; color: var(--text-faint); padding: 12px 10px 6px; }
.ex-item { display: flex; align-items: center; gap: 9px; padding: 8px 10px; border-radius: 9px; cursor: pointer; font-size: 13px; transition: .12s; }
.ex-item:hover { background: var(--bg-2); }
.ex-item.active { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.ex-item .verb { font-family: var(--mono); font-size: 9.5px; font-weight: 800; width: 46px; text-align: center; padding: 3px 0; border-radius: 5px; flex-shrink: 0; }
.ex-item .p { font-family: var(--mono); font-size: 12px; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ex-item .fav { margin-left: auto; opacity: 0; color: var(--put); }
.ex-item:hover .fav, .ex-item .fav.on { opacity: 1; }

.ex-main { border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(10px); overflow: hidden; }
.ex-head { padding: 20px 22px; border-bottom: 1px solid var(--border); }
.ex-head .row1 { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ex-head .verb-lg { font-family: var(--mono); font-weight: 800; font-size: 12px; padding: 5px 11px; border-radius: 7px; }
.ex-head .url { font-family: var(--mono); font-size: 13.5px; color: var(--text); background: var(--bg-2); border: 1px solid var(--border); padding: 7px 11px; border-radius: 9px; flex: 1; min-width: 200px; overflow-x: auto; white-space: nowrap; }
.ex-head h3 { font-size: 20px; font-weight: 800; margin-top: 14px; }
.ex-head p { color: var(--text-dim); font-size: 14px; margin-top: 3px; }
.auth-tag { font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 100px; background: color-mix(in srgb, var(--put) 18%, transparent); color: var(--put); }

.tabs { display: flex; gap: 2px; padding: 0 14px; border-bottom: 1px solid var(--border); overflow-x: auto; }
.tab { padding: 12px 14px; font-size: 13.5px; font-weight: 600; color: var(--text-dim); cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.tab.on { color: var(--text); border-bottom-color: var(--accent); }
.tab-body { padding: 20px 22px; }
.tab-panel { display: none; } .tab-panel.on { display: block; }

.field-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.field-table th { text-align: left; color: var(--text-faint); font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: .07em; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.field-table td { padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.field-table td code { font-family: var(--mono); color: var(--accent); font-size: 12.5px; }
.req-dot { color: var(--del); font-weight: 800; }

/* code blocks */
.code { position: relative; background: #05080f; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
[data-theme="light"] .code { background: #0b1120; }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; font-family: var(--mono); font-size: 12.8px; line-height: 1.65; color: #cdd9f0; }
.code .copy { position: absolute; top: 8px; right: 8px; }
.code-bar { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--border); background: var(--bg-2); }
.code-bar .fname { font-family: var(--mono); font-size: 11.5px; color: var(--text-faint); }
.tok-key { color: #7dd3fc; } .tok-str { color: #86efac; } .tok-num { color: #fca5a5; } .tok-bool { color: #c4b5fd; } .tok-punc { color: #7c8aa5; }

.lang-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.lang-tabs button { font-size: 12px; font-weight: 600; padding: 6px 11px; border-radius: 8px; border: 1px solid var(--border); background: transparent; color: var(--text-dim); cursor: pointer; transition: .15s; }
.lang-tabs button.on { border-color: var(--accent); color: var(--text); background: color-mix(in srgb, var(--accent) 12%, transparent); }

/* try-it + response */
.try-controls { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.try-controls .hint { font-size: 12px; color: var(--text-faint); }
textarea.body-input { width: 100%; min-height: 130px; border-radius: 10px; border: 1px solid var(--border); background: #05080f; color: #cdd9f0; font-family: var(--mono); font-size: 12.8px; padding: 12px 14px; resize: vertical; }
[data-theme="light"] textarea.body-input { background: #0b1120; }
textarea.body-input:focus { outline: none; border-color: var(--accent); }
.resp { margin-top: 16px; border-radius: var(--radius-sm); border: 1px solid var(--border); overflow: hidden; }
.resp-head { display: flex; align-items: center; gap: 12px; padding: 10px 14px; background: var(--bg-2); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.status-pill { font-family: var(--mono); font-weight: 800; font-size: 12px; padding: 4px 10px; border-radius: 7px; }
.status-2 { color: var(--post); background: color-mix(in srgb, var(--post) 16%, transparent); }
.status-3 { color: var(--accent-3); background: color-mix(in srgb, var(--accent-3) 16%, transparent); }
.status-4 { color: var(--put); background: color-mix(in srgb, var(--put) 16%, transparent); }
.status-5 { color: var(--del); background: color-mix(in srgb, var(--del) 16%, transparent); }
.resp-meta { font-size: 12px; color: var(--text-dim); font-family: var(--mono); }
.resp-tabs { display: flex; gap: 4px; margin-left: auto; }
.resp-tabs button { font-size: 11.5px; padding: 4px 9px; border-radius: 7px; border: 1px solid transparent; background: transparent; color: var(--text-dim); cursor: pointer; }
.resp-tabs button.on { color: var(--text); border-color: var(--border); }
.spinner { width: 16px; height: 16px; border: 2px solid var(--border-strong); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Overview (what this covers) ---------- */
.overview-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 30px; }
.ov-card { padding: 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(8px); transition: .2s; }
.ov-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.ov-ico { font-size: 24px; margin-bottom: 10px; }
.ov-card h4 { font-size: 15px; font-weight: 700; }
.ov-card p { font-size: 13px; color: var(--text-dim); margin-top: 5px; line-height: 1.5; }
@media (max-width: 980px) { .overview-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .overview-grid { grid-template-columns: 1fr; } }

/* ---------- Interactive AI generator ---------- */
.ai-controls { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; margin-bottom: 18px; }
.ai-field { display: flex; flex-direction: column; gap: 8px; }
.ai-field > span { font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); }
.ai-field select { min-width: 240px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border-strong); background: var(--bg-2); color: var(--text); font-family: var(--mono); font-size: 13px; cursor: pointer; }
.ai-field select:focus { outline: none; border-color: var(--accent); }
.ai-frameworks { display: flex; flex-wrap: wrap; gap: 8px; }
.ai-fw { display: inline-flex; align-items: center; gap: 7px; padding: 9px 13px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg-2); color: var(--text-dim); font-size: 13px; font-weight: 600; cursor: pointer; transition: .15s; }
.ai-fw:hover { border-color: var(--accent); color: var(--text); }
.ai-fw.on { border-color: var(--accent); color: var(--text); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.ai-fw .em { font-size: 15px; }
.ai-target { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.ai-target-url { font-family: var(--mono); font-size: 12.5px; color: var(--text-dim); overflow-x: auto; white-space: nowrap; }
.ai-hint { font-size: 12.5px; color: var(--text-faint); margin-top: 12px; }
.ai-hint a { color: var(--accent); }

/* ---------- AI section ---------- */
.ai-wrap { border-radius: var(--radius); border: 1px solid var(--border-strong); background:
   radial-gradient(120% 120% at 100% 0%, color-mix(in srgb, var(--accent-2) 18%, transparent), transparent 55%), var(--surface);
   backdrop-filter: blur(10px); padding: 28px; margin-top: 30px; }
.ai-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px,1fr)); gap: 10px; margin: 18px 0; }
.ai-opt { padding: 12px 14px; border-radius: 11px; border: 1px solid var(--border); background: var(--bg-2); cursor: pointer; font-size: 13px; font-weight: 600; display: flex; align-items: center; gap: 9px; transition: .15s; }
.ai-opt:hover { border-color: var(--accent); }
.ai-opt.on { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.ai-opt .em { font-size: 17px; }

/* ---------- Challenges ---------- */
.chal-tabs { display: flex; gap: 8px; margin: 24px 0 20px; flex-wrap: wrap; }
.chal-tabs button { padding: 9px 16px; border-radius: 100px; border: 1px solid var(--border); background: var(--surface); color: var(--text-dim); font-weight: 700; font-size: 13px; cursor: pointer; }
.chal-tabs button.on { color: var(--text); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.chal-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 16px; }
.chal { padding: 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); position: relative; transition: .2s; }
.chal:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.chal .lvl { font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.chal h4 { font-size: 16px; font-weight: 700; margin: 8px 0 6px; }
.chal p { font-size: 13.5px; color: var(--text-dim); }
.chal .goto { margin-top: 12px; font-size: 12.5px; font-weight: 700; color: var(--accent); cursor: pointer; }
.lvl-beginner { color: var(--post); } .lvl-intermediate { color: var(--get); }
.lvl-advanced { color: var(--put); } .lvl-expert { color: var(--del); }

/* ---------- Checklist ---------- */
.check-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 14px; margin-top: 24px; }
.check-card { padding: 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.check-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.check-list { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.check-list li { display: flex; gap: 9px; font-size: 13.5px; color: var(--text-dim); align-items: flex-start; }
.check-list li::before { content: "✓"; color: var(--ok); font-weight: 900; flex-shrink: 0; }

/* ---------- Footer (mirrors qaautomationlabs.com) ---------- */
.qa-site-footer { background: #12182a; border-top: 1px solid var(--border); margin-top: 64px; }
.qa-footer-links { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; padding: 28px 24px 8px; }
.qa-footer-links a { color: rgba(255, 255, 255, .7); font-size: 14px; font-weight: 600; }
.qa-footer-links a:hover { color: var(--brand); }
.qa-footer-copy { text-align: center; padding: 16px 24px 30px; margin-top: 16px; color: rgba(255, 255, 255, .55); font-size: 13.5px; border-top: 1px solid rgba(255, 255, 255, .06); }
.qa-footer-copy a { color: var(--brand); font-weight: 600; }

/* ---------- Toasts ---------- */
#toasts { position: fixed; bottom: 22px; right: 22px; z-index: 300; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 12px 16px; border-radius: 11px; background: var(--surface-solid); border: 1px solid var(--border-strong); box-shadow: var(--shadow); font-size: 13.5px; font-weight: 600; display: flex; align-items: center; gap: 9px; animation: slidein .3s ease; }
.toast.ok { border-left: 3px solid var(--ok); } .toast.err { border-left: 3px solid var(--del); } .toast.info { border-left: 3px solid var(--accent); }
@keyframes slidein { from { transform: translateX(40px); opacity: 0; } }

.copy { font-size: 11.5px; padding: 5px 10px; border-radius: 7px; border: 1px solid var(--border); background: var(--bg-2); color: var(--text-dim); cursor: pointer; font-weight: 600; }
.copy:hover { color: var(--text); border-color: var(--accent); }
.kbd { font-family: var(--mono); font-size: 11px; padding: 2px 6px; border-radius: 5px; border: 1px solid var(--border-strong); background: var(--bg-2); color: var(--text-dim); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s, transform .6s; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .explorer { grid-template-columns: 1fr; }
  .ex-side { position: relative; top: 0; max-height: 380px; }
  .top-links { display: none; }
}
@media (max-width: 560px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 60px 0 40px; }
  section { padding: 46px 0; }
}