:root {
  --red:#dc2626;
  --red-dark:#991b1b;
  --red-light:#f87171;
  --deep:#2e2640;
  --ink:#273247;
  --muted:#697386;
  --line:#dfe5ec;
  --paper:#f5f7fb;
  --green:#0d9488;
  --amber:#d97706;
  --blue:#2563eb;
  --violet:#7052b8;
}

* { box-sizing:border-box; }
html, body { width:100%; height:100%; }
body {
  margin:0;
  overflow:hidden;
  font-family:'Manrope',sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 8% 10%,rgba(220,38,38,.055),transparent 28%),
    radial-gradient(circle at 92% 88%,rgba(46,38,64,.065),transparent 30%),
    var(--paper);
}

.slide-container { width:100vw; height:100vh; position:relative; overflow:hidden; }
.slide {
  display:none;
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  padding:38px 48px 86px;
  overflow:hidden;
}
.slide.active {
  display:flex;
  flex-direction:column;
  justify-content:center;
  animation:slide-in .34s ease-out;
}
@keyframes slide-in {
  from { opacity:0; transform:translateX(28px); }
  to { opacity:1; transform:none; }
}
.active .rise { animation:rise .44s both; animation-delay:var(--delay,0s); }
@keyframes rise {
  from { opacity:0; transform:translateY(14px); }
  to { opacity:1; transform:none; }
}

.sc { width:min(1240px,100%); margin:0 auto; }
.slide-head {
  margin-bottom:14px;
  padding:14px 22px 15px;
  border-radius:14px;
  color:#fff;
  box-shadow:0 8px 24px rgba(46,38,64,.11);
}
.slide-head.red { background:linear-gradient(135deg,var(--red-dark),var(--red) 58%,var(--red-light)); }
.slide-head.dark { background:linear-gradient(135deg,#201a30,var(--deep) 58%,#5a4b79); }
.slide-head.green { background:linear-gradient(135deg,#0f766e,var(--green) 60%,#5eead4); }
.slide-head.amber { background:linear-gradient(135deg,#9a3412,var(--amber) 60%,#fbbf24); }
.slide-head.blue { background:linear-gradient(135deg,#1e40af,var(--blue) 60%,#60a5fa); }
.eyebrow {
  margin:0 0 3px;
  font-size:.7rem;
  font-weight:800;
  letter-spacing:.14em;
  text-transform:uppercase;
  opacity:.78;
}
.slide-title { margin:0; font-size:1.8rem; font-weight:800; line-height:1.14; }
.slide-subtitle { margin:4px 0 0; font-size:.9rem; opacity:.86; }

.g2 { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; }
.g3 { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; }
.g4 { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:10px; }
.card {
  min-width:0;
  padding:15px 17px;
  border:1px solid var(--line);
  border-top:4px solid var(--red);
  border-radius:12px;
  background:rgba(255,255,255,.97);
  box-shadow:0 4px 14px rgba(46,38,64,.055);
}
.card.amber { border-top-color:var(--amber); }
.card.green { border-top-color:var(--green); }
.card.blue { border-top-color:var(--blue); }
.card.violet { border-top-color:var(--violet); }
.card-label {
  display:block;
  margin-bottom:5px;
  color:var(--red);
  font:800 .68rem/1.2 'Courier New',monospace;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.amber .card-label { color:var(--amber); }
.green .card-label { color:var(--green); }
.blue .card-label { color:var(--blue); }
.violet .card-label { color:var(--violet); }
.card h3 { margin:0 0 7px; color:var(--deep); font-size:.98rem; line-height:1.25; }
.card p, .card li { margin:0; color:#414b5f; font-size:.83rem; line-height:1.48; }
.card ul, .card ol { margin:5px 0 0; padding-left:1.1rem; }
.card li + li { margin-top:4px; }
.card strong { color:var(--deep); }
.callout {
  padding:13px 18px;
  border:1px solid #fecaca;
  border-left:5px solid var(--red);
  border-radius:12px;
  background:#fff7f7;
  color:#7f1d1d;
  font-size:.94rem;
  font-weight:700;
  line-height:1.5;
}
.callout.dark { border-color:#d8d2e6; border-left-color:var(--deep); background:#f8f6fb; color:var(--deep); }
.callout.green { border-color:#99f6e4; border-left-color:var(--green); background:#f0fdfa; color:#115e59; }
.micro { color:var(--muted); font-size:.72rem; line-height:1.42; }
.mono { font-family:'JetBrains Mono','Courier New',monospace; }

/* Cover */
.cover {
  color:#fff;
  background:linear-gradient(132deg,#3d0909 0%,#991b1b 43%,#dc2626 73%,#f87171 100%);
  isolation:isolate;
}
.cover::before {
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background-image:
    linear-gradient(rgba(255,255,255,.042) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.042) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(90deg,#000,transparent 78%);
}
.cover-layout { display:grid; grid-template-columns:1.25fr .75fr; align-items:center; gap:34px; }
.cover-badge {
  display:inline-block;
  margin-bottom:18px;
  padding:6px 15px;
  border:1px solid rgba(255,255,255,.28);
  border-radius:999px;
  background:rgba(255,255,255,.12);
  font-size:.78rem;
  font-weight:700;
}
.cover-title { margin:0 0 14px; font-size:3.15rem; font-weight:800; line-height:1.05; letter-spacing:-.035em; }
.cover-title span { display:block; color:#fecaca; }
.cover-subtitle { max-width:760px; margin:0; color:rgba(255,255,255,.85); font-size:1.02rem; line-height:1.55; }
.cover-meta { margin-top:16px; color:rgba(255,255,255,.66); font-size:.78rem; }
.cover-tags { display:flex; flex-wrap:wrap; gap:8px; margin-top:22px; }
.cover-tag { padding:7px 13px; border:1px solid rgba(255,255,255,.24); border-radius:9px; background:rgba(255,255,255,.1); font-size:.74rem; font-weight:700; }
.cover-benchmark { position:relative; width:380px; height:380px; margin:auto; }
.cover-benchmark svg { position:absolute; inset:0; width:100%; height:100%; }
.cover-benchmark line { stroke:rgba(255,255,255,.34); stroke-width:2; stroke-dasharray:5 7; }
.cover-node {
  position:absolute;
  display:flex;
  align-items:center;
  justify-content:center;
  width:112px;
  height:64px;
  border:1px solid rgba(255,255,255,.34);
  border-radius:12px;
  background:rgba(73,13,13,.34);
  box-shadow:0 10px 28px rgba(45,8,8,.2);
  backdrop-filter:blur(7px);
  font-size:.7rem;
  font-weight:800;
  text-align:center;
}
.cover-node.center { left:134px; top:157px; background:#fff; color:var(--red-dark); font-size:.82rem; }
.cover-node.n1 { left:8px; top:33px; }
.cover-node.n2 { right:8px; top:33px; }
.cover-node.n3 { left:8px; bottom:33px; }
.cover-node.n4 { right:8px; bottom:33px; }

/* Continuity and agenda */
.continuity { display:grid; grid-template-columns:repeat(4,1fr); gap:0; margin:18px 0; }
.continuity-step { position:relative; padding:18px 15px; border:1px solid var(--line); background:#fff; text-align:center; }
.continuity-step:first-child { border-radius:12px 0 0 12px; }
.continuity-step:last-child { border-radius:0 12px 12px 0; }
.continuity-step + .continuity-step { border-left:0; }
.continuity-step + .continuity-step::before { content:">"; position:absolute; left:-6px; top:50%; z-index:2; transform:translateY(-50%); color:var(--red); font-size:1.05rem; font-weight:800; }
.continuity-step small { display:block; color:var(--muted); font-size:.67rem; letter-spacing:.08em; text-transform:uppercase; }
.continuity-step strong { display:block; margin-top:6px; color:var(--deep); font-size:.88rem; }
.continuity-step.focus { background:#fff1f2; box-shadow:inset 0 -4px 0 var(--red); }
.time-grid { display:grid; grid-template-columns:.75fr 1.05fr 1.05fr .75fr; gap:12px; }
.time-card { min-height:210px; display:flex; flex-direction:column; justify-content:space-between; }
.minutes { color:var(--deep); font-size:2.65rem; line-height:1; font-weight:800; letter-spacing:-.06em; }
.minutes span { color:var(--muted); font-size:.77rem; letter-spacing:0; }

/* Benchmark method */
.benchmark-method { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.method-hero {
  display:flex;
  flex-direction:column;
  justify-content:center;
  min-height:280px;
  padding:28px;
  border-radius:14px;
  background:linear-gradient(145deg,var(--deep),#5a4b78);
  color:#fff;
  box-shadow:0 14px 30px rgba(46,38,64,.17);
}
.method-hero small { color:#fecaca; font-size:.69rem; font-weight:800; letter-spacing:.12em; text-transform:uppercase; }
.method-hero h3 { margin:10px 0 9px; color:#fff; font-size:1.5rem; line-height:1.15; }
.method-hero p { margin:0; color:rgba(255,255,255,.76); font-size:.79rem; line-height:1.5; }
.checklist { display:grid; gap:8px; }
.check-item { display:grid; grid-template-columns:28px 1fr; align-items:center; gap:9px; padding:10px 12px; border:1px solid var(--line); border-radius:9px; background:#fff; }
.check-item span { display:flex; align-items:center; justify-content:center; width:24px; height:24px; border-radius:50%; background:#fee2e2; color:var(--red-dark); font-size:.62rem; font-weight:800; }
.check-item p { margin:0; color:#414b5f; font-size:.73rem; line-height:1.4; }

/* ClickHouse vs PostgreSQL comparison */
.engine-compare { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.engine-panel {
  min-height:200px;
  padding:20px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  overflow:hidden;
}
.engine-panel.clickhouse { border-top:4px solid #ffcc00; }
.engine-panel.postgresql { border-top:4px solid #336791; }
.engine-header { display:flex; align-items:center; gap:10px; margin-bottom:12px; }
.engine-logo { width:36px; height:36px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-size:1.4rem; }
.clickhouse .engine-logo { background:#ffcc00; color:#000; }
.postgresql .engine-logo { background:#336791; color:#fff; }
.engine-name { font-size:1.1rem; font-weight:800; color:var(--deep); }
.engine-steps { display:grid; gap:8px; }
.engine-step { padding:10px; border:1px solid var(--line); border-radius:8px; background:#f8fafc; }
.engine-step-num { display:inline-flex; align-items:center; justify-content:center; width:22px; height:22px; border-radius:50%; background:var(--deep); color:#fff; font-size:.6rem; font-weight:800; margin-right:8px; }
.engine-step-title { font-weight:700; color:var(--deep); font-size:.78rem; }
.engine-step-desc { margin:4px 0 0; color:var(--muted); font-size:.68rem; line-height:1.4; }

/* SQL code blocks */
.code-block {
  margin:12px 0;
  padding:14px;
  border:1px solid var(--line);
  border-radius:9px;
  background:#1e293b;
  color:#e2e8f0;
  font-family:'JetBrains Mono','Courier New',monospace;
  font-size:.72rem;
  line-height:1.55;
  overflow-x:auto;
  white-space:pre;
}
.code-comment { color:#94a3b8; }
.code-keyword { color:#60a5fa; font-weight:700; }
.code-string { color:#34d399; }
.code-number { color:#fbbf24; }

/* Observation boxes */
.observe-box {
  margin-top:10px;
  padding:12px 15px;
  border:1px solid #bfdbfe;
  border-left:4px solid var(--blue);
  border-radius:9px;
  background:#eff6ff;
  color:#1e40af;
  font-size:.76rem;
  line-height:1.5;
}
.observe-box strong { color:var(--deep); }

/* Telas de código: preservam legibilidade sem invadir o rodapé do projetor. */
.slide-compact-code .slide-head { margin-bottom:10px; padding:11px 18px 12px; }
.slide-compact-code .card,
.slide-compact-code .engine-panel { padding:12px 14px; }
.slide-compact-code .engine-header { margin-bottom:8px; }
.slide-compact-code .code-block {
  margin:8px 0;
  padding:11px 12px;
  font-size:.68rem;
  line-height:1.42;
}
.slide-compact-code .observe-box { margin-top:7px; padding:9px 12px; line-height:1.42; }
.slide-compact-code .pitfall { margin-top:8px; padding:9px 14px; font-size:.78rem; line-height:1.42; }
.slide-pg-load .code-block { font-size:.64rem; line-height:1.36; }
.mv-definition .card,
.mv-backfill-grid .card { min-width:0; }

/* Ocupação vertical das telas conceituais no projetor. */
.slide-continuity .continuity { margin:26px 0; }
.slide-continuity .continuity-step { padding:30px 18px; }
.slide-continuity .callout { padding:16px 20px; font-size:1rem; }
.slide-sdd .card { min-height:190px; }

/* Pitfall warnings */
.pitfall {
  margin-top:12px;
  padding:13px 18px;
  border:1px solid #fecaca;
  border-left:5px solid var(--red);
  border-radius:12px;
  background:#fff7f7;
  color:#7f1d1d;
  font-size:.88rem;
  font-weight:700;
  line-height:1.5;
}
.pitfall::before { content:"⚠️ "; }

/* Benchmark table */
.benchmark-table {
  width:100%;
  border-collapse:collapse;
  margin:14px 0;
  font-size:.72rem;
}
.benchmark-table th {
  padding:10px 8px;
  background:var(--deep);
  color:#fff;
  font-weight:800;
  text-align:left;
  border:1px solid var(--line);
}
.benchmark-table td {
  padding:9px 8px;
  border:1px solid var(--line);
  background:#fff;
  vertical-align:top;
}
.benchmark-table tr:nth-child(even) td { background:#f8fafc; }

/* Lab instructions */
.lab-brief { display:grid; grid-template-columns:.85fr 1.15fr; gap:14px; }
.lab-hero {
  display:flex;
  flex-direction:column;
  justify-content:center;
  min-height:280px;
  padding:28px;
  border-radius:14px;
  background:linear-gradient(145deg,var(--deep),#5a4b78);
  color:#fff;
  box-shadow:0 14px 30px rgba(46,38,64,.17);
}
.lab-hero small { color:#fecaca; font-size:.69rem; font-weight:800; letter-spacing:.12em; text-transform:uppercase; }
.lab-hero h3 { margin:10px 0 9px; color:#fff; font-size:1.5rem; line-height:1.15; }
.lab-hero p { margin:0; color:rgba(255,255,255,.76); font-size:.79rem; line-height:1.5; }
.lab-list { display:grid; gap:8px; }
.lab-item { display:grid; grid-template-columns:28px 1fr; align-items:center; gap:9px; padding:10px 12px; border:1px solid var(--line); border-radius:9px; background:#fff; }
.lab-item span { display:flex; align-items:center; justify-content:center; width:24px; height:24px; border-radius:50%; background:#fee2e2; color:var(--red-dark); font-size:.62rem; font-weight:800; }
.lab-item p { margin:0; color:#414b5f; font-size:.73rem; line-height:1.4; }

/* DBeaver setup */
.dbeaver-setup { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.connection-card { padding:16px; border:1px solid var(--line); border-radius:11px; background:#fff; }
.connection-card h3 { margin:0 0 10px; color:var(--deep); font-size:.95rem; }
.connection-card p { margin:0; color:var(--muted); font-size:.76rem; line-height:1.5; }

/* Deliverable */
.deliverable { display:grid; grid-template-columns:.8fr 1.2fr; gap:14px; }
.artifact {
  display:flex;
  flex-direction:column;
  justify-content:center;
  min-height:300px;
  padding:28px;
  border-radius:14px;
  background:linear-gradient(145deg,var(--deep),#584b74);
  color:#fff;
  box-shadow:0 14px 30px rgba(46,38,64,.18);
}
.artifact small { color:#fecaca; font-weight:800; letter-spacing:.12em; text-transform:uppercase; }
.artifact h3 { margin:10px 0 8px; color:#fff; font-size:1.52rem; line-height:1.15; }
.artifact p { margin:0; color:rgba(255,255,255,.76); font-size:.79rem; line-height:1.5; }
.acceptance { display:grid; gap:7px; }
.accept { display:grid; grid-template-columns:27px 1fr; align-items:center; gap:9px; padding:9px 12px; border:1px solid var(--line); border-radius:9px; background:#fff; }
.accept span { display:flex; align-items:center; justify-content:center; width:23px; height:23px; border-radius:50%; background:#ccfbf1; color:#0f766e; font-size:.62rem; font-weight:800; }
.accept p { margin:0; color:#414b5f; font-size:.7rem; line-height:1.4; }

/* Final */
.final-line { max-width:1030px; color:var(--deep); font-size:2.15rem; line-height:1.25; font-weight:800; letter-spacing:-.035em; }
.final-line em { color:var(--red); font-style:normal; }
.refs { display:flex; flex-wrap:wrap; gap:7px; margin-top:24px; }
.ref { padding:6px 10px; border:1px solid var(--line); border-radius:8px; background:#fff; color:var(--muted); font-size:.67rem; }

/* Footer */
.slide-footer { position:fixed; right:0; bottom:0; left:0; z-index:100; display:flex; align-items:center; justify-content:space-between; gap:12px; padding:10px 24px; border-top:1px solid var(--line); background:rgba(255,255,255,.97); box-shadow:0 -2px 10px rgba(46,38,64,.06); }
.footer-links { display:flex; gap:8px; }
.back-home { display:inline-flex; align-items:center; padding:8px 13px; border-radius:9px; background:#f1f4f8; color:var(--deep); text-decoration:none; font-size:.82rem; font-weight:700; }
.back-home.material { background:#2f8f78; color:#fff; }
.nav-wrapper { display:flex; align-items:center; gap:10px; padding:6px 13px; border-radius:999px; background:#f1f4f8; }
.nav-btn { min-width:94px; padding:7px 11px; border:0; border-radius:8px; background:var(--deep); color:#fff; font:700 .78rem 'Manrope',sans-serif; cursor:pointer; }
.nav-btn:disabled { opacity:.32; cursor:default; }
.slide-counter { min-width:52px; color:var(--deep); font-size:.78rem; font-weight:800; text-align:center; }
.fullscreen-btn { width:36px; height:36px; border:1px solid var(--line); border-radius:9px; background:#fff; color:var(--deep); font-size:1rem; cursor:pointer; }

@media (min-width:1800px) {
  .slide { padding:54px 72px 108px; }
  .sc { width:min(1580px,100%); }
  .slide-title { font-size:2.4rem; }
  .slide-subtitle { font-size:1.12rem; }
  .card { padding:20px 23px; }
  .card h3 { font-size:1.22rem; }
  .card p, .card li { font-size:1rem; }
  .cover-title { font-size:4.25rem; }
  .cover-subtitle { font-size:1.32rem; }
  .cover-benchmark { width:470px; height:470px; }
  .cover-node.center { left:179px; top:202px; }
  .slide-continuity .continuity { margin:38px 0; }
  .slide-continuity .continuity-step { padding:68px 24px; }
  .slide-continuity .continuity-step small { font-size:.86rem; }
  .slide-continuity .continuity-step strong { font-size:1.18rem; }
  .slide-continuity .callout { padding:22px 28px; font-size:1.28rem; }
  .slide-agenda .time-card { min-height:285px; }
  .slide-agenda .minutes { font-size:3.4rem; }
  .slide-method .method-hero { min-height:370px; padding:40px; }
  .slide-method .method-hero h3 { font-size:2rem; }
  .slide-method .method-hero p { font-size:1.05rem; }
  .slide-method .check-item { padding:17px 18px; }
  .slide-method .check-item p { font-size:.96rem; }
  .slide-compact-code .card,
  .slide-compact-code .engine-panel { padding:18px 20px; }
  .slide-compact-code .code-block { padding:14px 16px; font-size:.8rem; line-height:1.48; }
  .slide-compact-code .observe-box { padding:12px 16px; font-size:.9rem; }
  .slide-compact-code .pitfall { padding:12px 17px; font-size:.9rem; }
  .slide-pg-load .code-block { font-size:.72rem; line-height:1.42; }
  .concept-slide .card { min-height:190px; padding:28px 30px; }
  .concept-slide .card p { font-size:1.08rem; line-height:1.58; }
  .slide-benchmark .benchmark-table { font-size:.9rem; }
  .slide-benchmark .benchmark-table th,
  .slide-benchmark .benchmark-table td { padding:13px 11px; }
  .slide-benchmark .callout { padding:18px 24px; font-size:1.15rem; }
  .slide-setup .connection-card { min-height:240px; padding:34px; }
  .slide-setup .connection-card p { font-size:1.08rem; line-height:1.62; }
  .slide-setup .callout { padding:22px 28px; font-size:1.18rem; }
  .slide-sdd .card { min-height:350px; padding:36px 30px; }
  .slide-sdd .card p { font-size:1.03rem; line-height:1.58; }
  .slide-deliverable .artifact { min-height:390px; padding:42px; }
  .slide-deliverable .artifact h3 { font-size:2rem; }
  .slide-deliverable .artifact p { font-size:1.08rem; }
  .slide-deliverable .accept { padding:16px 18px; }
  .slide-deliverable .accept p { font-size:.94rem; }
  .slide-closing .final-line { max-width:1480px; font-size:3.65rem; line-height:1.3; }
  .slide-closing .refs { margin-top:34px; gap:10px; }
  .slide-closing .ref { padding:9px 13px; font-size:.85rem; }
  .slide-closing .callout { padding:26px 30px; font-size:1.3rem; }
}

@media (max-width:920px) {
  .slide { padding:26px 24px 80px; overflow:auto; }
  .cover-layout { grid-template-columns:1fr; }
  .cover-benchmark { position:absolute; right:-105px; bottom:-105px; opacity:.2; }
  .g4 { grid-template-columns:repeat(2,1fr); }
  .time-grid { grid-template-columns:repeat(2,1fr); }
  .benchmark-method, .engine-compare, .dbeaver-setup, .lab-brief, .deliverable { grid-template-columns:1fr; }
}

@media (max-width:680px) {
  .slide.active { justify-content:flex-start; }
  .slide { padding:20px 16px 76px; }
  .g2, .g3, .g4, .time-grid, .benchmark-method, .engine-compare, .dbeaver-setup, .lab-brief, .deliverable { grid-template-columns:1fr; }
  .slide-head { padding:12px 15px; }
  .slide-title { font-size:1.34rem; }
  .cover-title { font-size:2.65rem; }
  .continuity { grid-template-columns:1fr; gap:7px; }
  .continuity-step, .continuity-step:first-child, .continuity-step:last-child { border:1px solid var(--line); border-radius:9px; }
  .continuity-step + .continuity-step::before { display:none; }
  .footer-links .back-home:first-child { display:none; }
  .nav-btn { min-width:40px; width:40px; padding:7px 0; font-size:0; }
  #prev-btn::after { content:"<"; font-size:.9rem; }
  #next-btn::after { content:">"; font-size:.9rem; }
  .slide-footer { padding:8px 10px; }
  .fullscreen-btn { display:none; }
}