/* Shared presentation-mode styles for lecture-idea decks.
 * Used by interview/hiring-manager-lens.html and
 * agentic-tooling/engineering-attention.html
 * Requires :root --mono, --display on the host page.
 */
    /* —— presentation —— */
    body.presenting { overflow: hidden; background: #0e1218; }
    body.presenting .page,
    body.presenting .mode-bar { display: none !important; }

    #deck {
      display: none;
      position: fixed;
      inset: 0;
      background: #0e1218;
      color: #e8eaed;
      z-index: 100;
      flex-direction: column;
    }
    body.presenting #deck { display: flex; }

    #deck .deck-chrome {
      flex: 0 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 0.75rem 1.25rem;
      border-bottom: 1px solid #2a3140;
      font-family: var(--mono);
      font-size: 0.9rem;
      color: #8b95a5;
    }
    #deck .deck-chrome strong { color: #c5cdd8; font-weight: 500; font-size: 1rem; }
    #deck .deck-chrome .keys kbd {
      display: inline-block;
      border: 1px solid #3a4456;
      border-radius: 4px;
      padding: 0.1rem 0.35rem;
      margin: 0 0.1rem;
      color: #aab4c2;
      background: #161b24;
    }
    #deck .deck-chrome .end {
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    #deck .deck-chrome button,
    #deck .deck-chrome a {
      font-family: var(--mono);
      font-size: 0.75rem;
      background: transparent;
      color: #aab4c2;
      border: 1px solid #3a4456;
      border-radius: 6px;
      padding: 0.35rem 0.7rem;
      cursor: pointer;
      text-decoration: none;
    }
    .mode-bar a {
      font-family: var(--mono);
      font-size: 0.78rem;
      font-weight: 500;
      color: var(--accent);
      text-decoration: none;
    }
    .mode-bar a:hover { text-decoration: underline; }
    #deck .stage {
      flex: 1 1 auto;
      display: flex;
      flex-direction: column;
      align-items: stretch;
      justify-content: flex-start;
      padding: 0.5rem 0.75rem 0.85rem;
      overflow: hidden;
      min-height: 0;
    }
    .slide {
      display: none;
      width: 100%;
      height: 100%;
      max-width: 100%;
      max-height: 100%;
      min-width: 0;
      min-height: 0;
      box-sizing: border-box;
      animation: slideIn 0.22s ease;
    }
    .slide.active {
      display: flex;
      flex-direction: column;
      flex: 1 1 auto;
      width: 100%;
      height: 100%;
      min-height: 0;
    }
    @keyframes slideIn {
      from { opacity: 0; transform: translateY(8px); }
      to { opacity: 1; transform: none; }
    }
    @media (prefers-reduced-motion: reduce) {
      .slide { animation: none; }
    }

    .slide .s-lab {
      font-family: var(--mono);
      font-size: clamp(0.95rem, 1.5vw, 1.15rem);
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: #5ec4c0;
      margin-bottom: 0.75rem;
    }
    .slide h2 {
      font-family: var(--display);
      font-size: clamp(1.75rem, 4vw, 3rem);
      font-weight: 700;
      line-height: 1.15;
      letter-spacing: -0.02em;
      color: #f2f4f7;
      margin-bottom: 1rem;
      max-width: 100%;
      white-space: normal;
      overflow-wrap: break-word;
    }
    .slide .s-sub {
      font-size: clamp(1.25rem, 2.4vw, 1.7rem);
      color: #9aa6b5;
      line-height: 1.4;
      max-width: 40ch;
      margin-bottom: 1.35rem;
    }
    .slide .s-illust {
      margin: 0;
      border-top: 1px solid #2a3140;
      background: #0c1016;
      flex: 1 1 auto;
      min-height: 0;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .slide .s-illust img {
      display: block;
      width: 100%;
      max-width: 100%;
      max-height: min(72vh, 100%);
      height: auto;
      object-fit: contain;
      object-position: center;
      background: #0c1016;
    }
    .slide .s-illust.s-illust-wide img {
      max-height: min(78vh, 100%);
      width: 100%;
      max-width: 100%;
      object-fit: contain;
      object-position: center;
      background: #f7f9fc;
    }
    /* Claim + support on slides */
    .slide .s-ae {
      background: #161b24;
      border: 1px solid #2a3140;
      border-radius: 14px;
      overflow: hidden;
      margin-top: 0;
      max-width: 100%;
      min-width: 0;
      min-height: 0;
      flex: 1 1 auto;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    /* bodyHtml (e.g. JD pre) inside present evidence */
    .slide .s-ae .s-ev pre {
      font-family: var(--mono);
      font-size: clamp(1.15rem, 2vw, 1.5rem);
      line-height: 1.5;
      white-space: pre-wrap;
      overflow-wrap: break-word;
      word-break: break-word;
      max-width: 100%;
      margin: 0;
      padding: 0.85rem 1rem;
      border-radius: 8px;
      background: #0c1016;
      border: 1px solid #2a3140;
      color: #c5cdd8;
    }
    .slide .s-ae .s-ev p.small,
    .slide .s-ae .s-ev .small {
      margin-top: 0.65rem;
      color: #8b95a5 !important;
      font-size: clamp(0.85rem, 1.3vw, 1rem) !important;
    }
    .slide .s-ae .s-assert {
      flex: 0 0 auto;
      padding: 1.5rem 2rem 1.25rem;
      border-bottom: 1px solid #2a3140;
    }
    .slide .s-ae .s-assert .lab {
      font-family: var(--mono);
      font-size: 0.85rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: #e0a070;
      margin-bottom: 0.4rem;
    }
    .slide .s-ae .s-assert p {
      font-family: var(--display);
      font-size: clamp(1.55rem, 3.2vw, 2.65rem);
      font-weight: 600;
      line-height: 1.25;
      color: #f2f4f7;
      margin: 0;
      max-width: 100%;
      white-space: normal;
      overflow-wrap: break-word;
      text-wrap: balance;
    }
    .slide .s-ae .s-ev {
      flex: 1 1 auto;
      padding: 1.35rem 2rem 1.5rem;
      background: #12171f;
      min-width: 0;
      min-height: 0;
      display: flex;
      flex-direction: column;
      justify-content: center;
      overflow: auto;
    }
    .slide .s-ae .s-ev:empty {
      display: none;
      padding: 0;
    }
    .slide .s-ae .s-ev .lab {
      font-family: var(--mono);
      font-size: 0.85rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: #5ec4c0;
      margin-bottom: 0.45rem;
    }
    .slide .s-ae ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .slide .s-ae li {
      position: relative;
      padding: 0.7rem 0 0.7rem 1.5rem;
      font-size: clamp(1.35rem, 2.5vw, 1.9rem);
      line-height: 1.4;
      color: #c5cdd8;
      border-bottom: 1px solid #1e2530;
      overflow-wrap: break-word;
    }
    .slide .s-ae li:last-child { border-bottom: none; }
    .slide .s-ae li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 1.05em;
      width: 0.55rem;
      height: 0.55rem;
      border-radius: 50%;
      background: #0b6e6e;
      transform: translateY(-50%);
    }
    .slide .s-ae li strong { color: #f2f4f7; }
    .slide .s-flow {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.5rem;
      margin: 1rem 0 0;
    }
    .slide .s-flow span {
      font-family: var(--mono);
      font-size: clamp(0.95rem, 1.7vw, 1.2rem);
      background: #161b24;
      border: 1px solid #2a3140;
      color: #c5cdd8;
      padding: 0.55rem 0.9rem;
      border-radius: 8px;
    }
    .slide .s-flow .you {
      border-color: #0b6e6e;
      background: #123535;
      color: #a8e6e2;
      font-weight: 600;
    }
    .slide .s-flow .arr {
      border: none;
      background: none;
      color: #5ec4c0;
      font-weight: 700;
      font-size: 1.2rem;
    }
    .slide .s-two {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
      margin-top: 0.25rem;
    }
    /* A / B compare (no answer labels) */
    .slide .s-compare {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
      gap: 1.25rem 1.75rem;
      align-items: stretch;
      width: 100%;
      min-height: 0;
    }
    .slide .s-compare .s-card {
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-width: 0;
      height: 100%;
      border-color: #2a3140;
      background: #141a22;
    }
    .slide .s-compare .s-card .lab {
      color: #5ec4c0;
      font-size: clamp(0.95rem, 1.6vw, 1.15rem);
    }
    .slide .s-compare .s-card p {
      font-size: clamp(1.2rem, 2.2vw, 1.7rem);
      color: #e8eaed;
      line-height: 1.4;
    }
    @media (max-width: 700px) {
      .slide .s-compare {
        grid-template-columns: 1fr;
        gap: 0.85rem;
      }
    }
    .slide .s-three {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 0.85rem;
      margin-top: 0.75rem;
    }
    @media (max-width: 900px) {
      .slide .s-three { grid-template-columns: 1fr; }
    }
    @media (max-width: 700px) {
      .slide .s-two { grid-template-columns: 1fr; }
      #deck .stage { padding: 0.4rem 0.5rem 0.65rem; }
      .slide .s-ae .s-assert { padding: 1rem 1.1rem 0.9rem; }
      .slide .s-ae .s-ev { padding: 1rem 1.1rem 1.15rem; }
    }
    .slide .s-card.now {
      border-color: #0b6e6e;
      box-shadow: 0 0 0 1px #0b6e6e55;
    }
    .slide .s-card {
      background: #161b24;
      border: 1px solid #2a3140;
      border-radius: 12px;
      padding: 1.15rem 1.25rem;
    }
    .slide .s-card .lab {
      font-family: var(--mono);
      font-size: 0.8rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #5ec4c0;
      margin-bottom: 0.4rem;
    }
    .slide .s-card h3 {
      font-family: var(--display);
      font-size: clamp(1.25rem, 2.2vw, 1.55rem);
      color: #f2f4f7;
      margin-bottom: 0.45rem;
    }
    .slide .s-card p {
      font-size: clamp(1.1rem, 1.9vw, 1.3rem);
      color: #9aa6b5;
      line-height: 1.45;
      margin: 0;
    }
    .progress {
      position: absolute;
      left: 0;
      bottom: 0;
      height: 3px;
      background: #0b6e6e;
      transition: width 0.2s ease;
    }
  

    /* Ensure active slide fills the stage (full-screen present) */
    #deck .stage > .slide.active {
      flex: 1 1 auto;
      width: 100%;
      height: 100%;
      min-width: 0;
      min-height: 0;
    }

    /* img-left: image + bullets — fill evidence pane */
    .slide .s-ae .s-ev:has(.s-split) {
      justify-content: stretch;
      padding: 0.85rem 1.25rem 1rem;
      overflow: hidden;
    }
    .slide .s-split {
      display: grid;
      grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
      gap: 1.5rem 2rem;
      align-items: center;
      min-width: 0;
      min-height: 0;
      flex: 1 1 auto;
      height: 100%;
      width: 100%;
    }
    .slide .s-split img {
      display: block;
      width: 100%;
      max-width: 100%;
      max-height: min(78vh, 100%);
      height: auto;
      object-fit: contain;
      border-radius: 12px;
      background: #0c1016;
    }
    .slide .s-split ul {
      list-style: none;
      margin: 0;
      padding: 0;
      min-width: 0;
    }
    .slide .s-split li {
      position: relative;
      padding: 0.7rem 0 0.7rem 1.5rem;
      font-size: clamp(1.3rem, 2.4vw, 1.85rem);
      line-height: 1.4;
      color: #c5cdd8;
      border-bottom: 1px solid #1e2530;
      overflow-wrap: break-word;
    }
    .slide .s-split li:last-child { border-bottom: none; }
    .slide .s-split li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 1.05em;
      width: 0.55rem;
      height: 0.55rem;
      border-radius: 50%;
      background: #0b6e6e;
      transform: translateY(-50%);
    }
    @media (max-width: 700px) {
      .slide .s-split { grid-template-columns: 1fr; }
    }

    /* Dark tables in present mode */
    .slide .s-ae .s-ev table {
      width: 100%;
      border-collapse: collapse;
      font-size: clamp(0.95rem, 1.6vw, 1.2rem);
      margin: 0.35rem 0 0;
      background: #0c1016;
      border: 1px solid #2a3140;
      border-radius: 10px;
      overflow: hidden;
      color: #c5cdd8;
    }
    .slide .s-ae .s-ev th,
    .slide .s-ae .s-ev td {
      text-align: left;
      padding: 0.65rem 0.85rem;
      border-bottom: 1px solid #1e2530;
      vertical-align: top;
      color: #c5cdd8;
      background: transparent;
    }
    .slide .s-ae .s-ev th {
      font-family: var(--mono);
      font-size: clamp(0.72rem, 1.2vw, 0.9rem);
      letter-spacing: 0.04em;
      text-transform: uppercase;
      color: #8b95a5;
      background: #12171f;
      font-weight: 500;
    }
    .slide .s-ae .s-ev tr:last-child td { border-bottom: none; }
    .slide .s-ae .s-ev td code {
      font-family: var(--mono);
      font-size: 0.92em;
      color: #a8e6e2;
    }
    /* Flowchart in present */
    .slide .s-ae .s-ev .flow-chart {
      max-width: 100%;
    }
    .slide .s-ae .s-ev .flow-chart-h {
      flex-direction: row;
      flex-wrap: wrap;
      gap: 0.35rem 0.25rem;
      max-width: 100%;
    }
    .slide .s-ae .s-ev .flow-step {
      background: #161b24;
      border: 1px solid #2a3140;
      border-radius: 10px;
      padding: 0.55rem 0.75rem;
      min-width: 7rem;
    }
    .slide .s-ae .s-ev .flow-step.human {
      border-color: #0b6e6e;
      background: #123535;
    }
    .slide .s-ae .s-ev .flow-step.agent {
      border-style: dashed;
    }
    .slide .s-ae .s-ev .flow-step .who {
      font-family: var(--mono);
      font-size: 0.72rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: #5ec4c0;
    }
    .slide .s-ae .s-ev .flow-step.agent .who { color: #8b95a5; }
    .slide .s-ae .s-ev .flow-step .what {
      color: #e8eaed;
      font-size: clamp(0.95rem, 1.5vw, 1.15rem);
      margin-top: 0.2rem;
    }
    .slide .s-ae .s-ev .flow-arr { color: #5ec4c0; font-size: 1rem; }
    .slide .s-ae .s-ev .small { color: #8b95a5 !important; }
    /* Section title only (no claim card) */
    .slide .s-section-title {
      flex: 1 1 auto;
      display: flex;
      align-items: center;
      min-height: 0;
      padding: 0 0.5rem;
    }
    .slide .s-section-title h2 {
      margin: 0;
      max-width: 22ch;
    }

/* —— doc mode: back to top —— */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 50;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 999px;
  border: 1px solid var(--line, #d0dae6);
  background: var(--surface, #ffffff);
  color: var(--ink, #1a2332);
  font-family: var(--mono, ui-monospace, Menlo, monospace);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.35rem);
  transition: opacity 0.2s ease, transform 0.2s ease, border-color 0.15s, color 0.15s;
}
.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}
.back-to-top:hover {
  border-color: var(--accent, #0b6e6e);
  color: var(--accent, #0b6e6e);
}
.back-to-top:focus-visible {
  outline: 2px solid var(--accent, #0b6e6e);
  outline-offset: 2px;
}
body.presenting .back-to-top {
  display: none !important;
}

/* Hash jump target sits under sticky mode-bar */
.slide-page {
  scroll-margin-top: 3.75rem;
}