/* Deck framework — shared across all Python-SDET decks. */
    /* ===========================================================
       Deck framework — DO NOT EDIT the rules in this <style> block.
       =========================================================== */
    :root {
      /* SLOT: theme tokens — AI with Rufat brand */
      --bg:      oklch(9% 0.06 255);
      --fg:      oklch(97% 0.006 255);
      --muted:   oklch(52% 0.05 255);
      --accent:  oklch(72% 0.23 210);
      --accent2: oklch(58% 0.28 265);
      --surface: oklch(14% 0.08 255);
      --border:  oklch(22% 0.10 255);
      --shell:   oklch(5% 0.03 252);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html, body {
      width: 100%;
      height: 100%;
      overflow: hidden;
      background: var(--shell);
      color: var(--fg);
      font: 18px/1.5 -apple-system, system-ui, sans-serif;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    .deck-shell {
      position: fixed;
      inset: 0;
      overflow: hidden;
    }
    .deck-stage {
      width: 1920px;
      height: 1080px;
      background: var(--bg);
      position: relative;
      transform-origin: top left;
      box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
    }
    .slide {
      position: absolute;
      inset: 0;
      overflow: hidden;
    }
    .slide:not(.active) { display: none !important; }
    :where(.slide.active) { display: flex; flex-direction: column; }
    .deck-counter {
      position: fixed;
      bottom: 22px;
      left: 50%;
      transform: translateX(-50%);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      background: rgba(10, 14, 26, 0.92);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      padding: 6px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: #fff;
      font: 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
      letter-spacing: 0.18em;
      z-index: 1000;
    }
    .deck-counter button {
      width: 36px; height: 36px;
      background: transparent;
      color: #fff;
      border: 0;
      border-radius: 50%;
      font-size: 18px;
      line-height: 1;
      cursor: pointer;
      display: grid;
      place-items: center;
      transition: background 0.15s;
    }
    .deck-counter button:hover { background: rgba(255, 255, 255, 0.12); }
    .deck-counter button[disabled] { opacity: 0.3; cursor: default; }
    .deck-counter .deck-count {
      padding: 0 14px;
      letter-spacing: 0.22em;
    }
    .deck-counter .deck-count .total { color: rgba(255, 255, 255, 0.5); }
    .deck-hint {
      position: fixed;
      bottom: 26px;
      right: 28px;
      color: rgba(255, 255, 255, 0.4);
      font: 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      z-index: 999;
      pointer-events: none;
    }
    @media print {
      @page { size: 1920px 1080px; margin: 0; }
      html, body {
        width: 1920px !important;
        height: auto !important;
        overflow: visible !important;
        background: #fff !important;
      }
      .deck-shell {
        position: static !important;
        display: block !important;
        inset: auto !important;
      }
      .deck-stage {
        width: 1920px !important;
        height: auto !important;
        transform: none !important;
        box-shadow: none !important;
        position: static !important;
      }
      .slide {
        display: flex !important;
        position: relative !important;
        inset: auto !important;
        width: 1920px !important;
        height: 1080px !important;
        page-break-after: always;
        break-after: page;
      }
      .slide:last-child { page-break-after: auto; break-after: auto; }
      .deck-counter, .deck-hint { display: none !important; }
    }

/* ===========================================================
   Python-SDET deck — component styles (shared by every deck).
   Each class here is used by at least one deck in the series.
   =========================================================== */

.circuit-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 60% at 8% 50%,  oklch(22% 0.16 265 / 0.35) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 92% 40%, oklch(28% 0.20 220 / 0.28) 0%, transparent 55%),
    radial-gradient(ellipse 45% 40% at 50% 110%, oklch(15% 0.10 250 / 0.4) 0%, transparent 50%);
}

/* gradient wordmark/accent text — shared by .grad-text and the brand wordmark */
.grad-text,
.brand-name strong {
  background: linear-gradient(135deg, oklch(84% 0.25 200) 0%, oklch(62% 0.30 265) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-bar { position: absolute; bottom: 44px; right: 64px; display: flex; align-items: center; gap: 10px; z-index: 10; }
.brand-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.brand-name { font-size: 22px; font-weight: 700; letter-spacing: -0.01em; color: oklch(70% 0.04 252); }

/* Section kicker + heading (full-width step slides) */
.kicker-label { font-size: 22px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.section-head { font-size: 64px; font-weight: 900; letter-spacing: -0.025em; line-height: 1.0; margin-bottom: 36px; }

/* Title */
.s-title { align-items: center; justify-content: center; text-align: center; padding: 80px; }
.s-title .kicker { font-size: 26px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 28px; }
.s-title .headline { font-size: 100px; font-weight: 900; line-height: 1.0; letter-spacing: -0.03em; max-width: 1400px; margin-bottom: 36px; }
.s-title .subtitle { font-size: 34px; font-weight: 400; color: var(--muted); max-width: 860px; line-height: 1.4; }
.s-title .pills { display: flex; gap: 16px; margin-top: 48px; }
.pill { padding: 10px 30px; border-radius: 999px; border: 1px solid oklch(30% 0.10 255); font-size: 22px; font-weight: 500; color: var(--muted); background: oklch(12% 0.06 255 / 0.5); }

/* Feature cards (stacked) */
.feature-cards { display: flex; flex-direction: column; gap: 20px; }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 24px 32px; display: flex; align-items: center; gap: 22px; }
.feature-icon { font-size: 36px; flex-shrink: 0; }
.feature-card h3 { font-size: 26px; font-weight: 700; margin-bottom: 4px; }
.feature-card p  { font-size: 20px; color: var(--muted); }

/* Labeled spec rows (e.g. the scope ladder) — key on the left, description on the right */
.spec-row { display: flex; align-items: center; gap: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px 28px; }
.spec-row .key { font-family: ui-monospace, Consolas, monospace; color: var(--accent); font-size: 24px; font-weight: 700; min-width: 240px; }
.spec-row .val { color: oklch(74% 0.04 255); font-size: 22px; }

/* Verb/status cards (grid of verb -> success status) */
.verb-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 30px; }
.verb-card .name { font-size: 30px; font-weight: 900; color: var(--accent); margin-bottom: 10px; }
.verb-card .stat { font-size: 40px; font-weight: 900; color: #4caf50; }
.verb-card .label { font-size: 22px; font-weight: 700; color: #f8fafc; margin-top: 6px; }
.verb-card .desc { color: var(--muted); font-size: 19px; margin-top: 8px; }

/* CRUD lifecycle step boxes (blue by default; .gone = red terminal state) */
.crud-step { background: oklch(20% 0.12 265); border: 2px solid var(--accent); border-radius: 12px; padding: 22px 24px; text-align: center; white-space: nowrap; }
.crud-step.gone { background: #2a0a0a; border-color: #f44336; }
.crud-step .step-name { font-size: 22px; font-weight: 800; color: #90caf9; }
.crud-step.gone .step-name { color: #ef9a9a; }
.crud-step .step-code { font-size: 18px; color: #4caf50; font-family: ui-monospace, Consolas, monospace; margin-top: 6px; }
.crud-step.gone .step-code { color: #f44336; }

/* Step layout (grid; slides set their own columns inline where needed) */
.s-step { display: grid; grid-template-columns: 1fr 1fr; height: 100%; gap: 60px; padding: 60px 90px; align-items: center; }
.step-tip {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 20px 28px;
  background: oklch(72% 0.23 210 / 0.10);
  border: 1px solid oklch(72% 0.23 210 / 0.28);
  border-radius: 12px;
  font-size: 25px; line-height: 1.45;
  color: oklch(80% 0.10 210);
}
.tip-icon { font-size: 26px; flex-shrink: 0; margin-top: 2px; }

/* Two-column comparison */
.s-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; padding: 60px 80px; height: 100%; align-items: start; }

/* Full-width heading inside any grid slide (s-two-col / s-step) */
.full-heading { grid-column: 1 / -1; font-size: 64px; font-weight: 900; letter-spacing: -0.025em; line-height: 1.0; margin-bottom: 8px; }

/* Pipeline chips (flow diagrams) */
.pipe-label { color: var(--muted); font-size: 20px; font-weight: 700; letter-spacing: 0.08em; margin-bottom: 14px; }
.pipe-row { display: flex; align-items: center; gap: 10px; flex-wrap: nowrap; }
.pipe-chip { border-radius: 10px; padding: 18px 22px; white-space: nowrap; font-size: 20px; font-weight: 700; }
.pipe-chip.green { background: #1b5e20; border: 2px solid #4caf50; color: #a5d6a7; }
.pipe-chip.blue  { background: oklch(20% 0.12 265); border: 2px solid var(--accent); color: #90caf9; }
.pipe-chip.mono  { font-family: ui-monospace, Consolas, monospace; font-size: 18px; font-weight: 400; }
.pipe-chip.win   { background: linear-gradient(135deg, #1b5e20, #2e7d32); border: 2px solid #4caf50; color: #fff; font-size: 22px; font-weight: 800; padding: 18px 26px; box-shadow: 0 0 24px rgba(76,175,80,0.4); }
.pipe-arrow { color: #555; font-size: 24px; }

/* Terminal mockup */
.terminal { border-radius: 8px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.55); border: 1px solid rgba(255,255,255,0.06); }
.terminal-bar { height: 36px; background: #1a1a2e; display: flex; align-items: center; padding: 0 14px; gap: 8px; position: relative; }
.terminal-bar .t-dots { display: flex; gap: 7px; }
.terminal-bar .t-dots span { width: 11px; height: 11px; border-radius: 50%; display: block; }
.terminal-bar .t-title { position: absolute; left: 50%; transform: translateX(-50%); font-size: 13px; color: #888; white-space: nowrap; font-family: ui-monospace, Consolas, monospace; }
.terminal-body { background: #012456; padding: 20px 24px; font-family: ui-monospace, Consolas, monospace; font-size: 18px; line-height: 1.8; }

/* Code block */
.code-block { background: oklch(10% 0.05 255); border: 1px solid oklch(22% 0.10 255); border-radius: 10px; padding: 28px 32px; font-family: ui-monospace, Consolas, monospace; font-size: 18px; line-height: 1.8; }

/* Inline code (accent monospace) — for <code> inside prose/tips */
.code-inline { font-family: ui-monospace, Consolas, monospace; color: var(--accent); }

/* Label above a code column (color set inline — it varies per column) */
.col-label { font-size: 20px; font-weight: 700; margin-bottom: 12px; }

/* Full-width step variant */
.s-full { display: flex; flex-direction: column; padding: 80px 120px; justify-content: center; height: 100%; }

/* Done */
.s-done { align-items: center; justify-content: center; text-align: center; padding: 80px; }
.done-icon { font-size: 110px; margin-bottom: 28px; filter: drop-shadow(0 0 36px oklch(72% 0.23 210)); }
.done-head { font-size: 92px; font-weight: 900; letter-spacing: -0.03em; line-height: 1.0; margin-bottom: 22px; }
.done-sub  { font-size: 34px; color: var(--muted); margin-bottom: 52px; }
.next-cards { display: flex; gap: 24px; }
.next-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 32px 36px; text-align: left; width: 340px; }
.next-card .nc-icon  { font-size: 38px; margin-bottom: 14px; }
.next-card .nc-title { font-size: 26px; font-weight: 700; margin-bottom: 8px; }
.next-card .nc-desc  { font-size: 20px; color: var(--muted); line-height: 1.4; }