/* ==========================================================================
   VODA Industrial — Capability Brief
   Design system
   ========================================================================== */

:root {
  /* Brand palette */
  --voda-blue: #1FB0F1;
  --voda-blue-soft: #66CAF5;
  --voda-blue-ice: #D6EBF5;
  --voda-blue-ice-50: #ECF5FA;

  --navy: #0E2640;
  --navy-deep: #081A2E;
  --navy-text: #1A2F4A;

  --text: #2A384C;
  --text-muted: #6B7A8E;
  --text-faint: #9AA6B6;

  --panel-light: #F5F7F9;
  --panel-line: #E3E8EE;

  --white: #FFFFFF;

  /* Type scale */
  --font-sans: 'Inter', -apple-system, 'Segoe UI', system-ui, sans-serif;
  --font-serif: 'Lora', Georgia, serif;

  /* Slide stage dimensions (16:9) */
  --slide-w: 1600px;
  --slide-h: 900px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: #0f1116;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  height: 100%;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Deck layout — one slide per screen, only the active slide is visible
   -------------------------------------------------------------------------- */

.deck {
  position: fixed;
  top: 0;             /* JS sets this to header height on load */
  left: 0;
  right: 0;
  bottom: 0;
  background: #0f1116;
}

.slide-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0s linear 0.28s;
  z-index: 1;
}
.slide-wrap.active {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.28s ease, visibility 0s linear 0s;
  z-index: 2;
}
.slide-wrap.dark { background: var(--navy-deep); }

/* Fixed 1600×900 design stage, scaled to fit by JS */
.slide {
  position: relative;
  width: var(--slide-w);
  height: var(--slide-h);
  transform-origin: center center;
  flex-shrink: 0;
  /* JS sets transform: scale(...) */
}

/* --------------------------------------------------------------------------
   Slide chrome — header strip, footer, page count
   -------------------------------------------------------------------------- */

.s-header {
  position: absolute;
  top: 32px;
  left: 56px;
  right: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--panel-line);
}

.s-header.no-line { border-bottom: none; padding-bottom: 0; }
.dark .s-header { border-bottom-color: rgba(255,255,255,0.1); }

.s-header .left { display: flex; align-items: center; gap: 16px; }
.s-header .right { font-size: 11px; letter-spacing: 0.18em; color: var(--text-faint); text-align: right; line-height: 1.5; }
.dark .s-header .right { color: rgba(255,255,255,0.55); }

.gmh-mark { display: flex; align-items: center; gap: 12px; }
.gmh-mark img { width: 36px; height: 36px; object-fit: contain; }
.gmh-mark .label { font-weight: 600; font-size: 14px; color: var(--navy-text); line-height: 1.2; }
.gmh-mark .label small { display: block; font-size: 10px; font-weight: 400; color: var(--text-muted); letter-spacing: 0.06em; margin-top: 2px; }
.dark .gmh-mark .label { color: var(--white); }
.dark .gmh-mark .label small { color: rgba(255,255,255,0.6); }

.divider-dot {
  width: 1px; height: 24px; background: var(--panel-line);
}
.dark .divider-dot { background: rgba(255,255,255,0.15); }

.voda-mark {
  height: 22px;
  width: auto;
  opacity: 0.95;
}

.s-pagenum {
  position: absolute;
  bottom: 32px;
  right: 56px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-faint);
  text-align: right;
  line-height: 1.6;
}
.dark .s-pagenum { color: rgba(255,255,255,0.55); }
.s-pagenum .num { font-size: 14px; color: var(--navy-text); font-weight: 600; letter-spacing: 0.06em; }
.dark .s-pagenum .num { color: var(--white); }

/* --------------------------------------------------------------------------
   Typography primitives
   -------------------------------------------------------------------------- */

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--voda-blue);
  font-weight: 500;
  text-transform: uppercase;
}

.kicker {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

h1.slide-title {
  margin: 8px 0 12px;
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--navy-text);
  line-height: 1.1;
}

h2.section-title {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 700;
  color: var(--navy-text);
  letter-spacing: -0.005em;
}

.subhead {
  font-size: 18px;
  color: var(--text-muted);
  margin: 0 0 24px;
  max-width: 80%;
  line-height: 1.5;
}

.dark h1.slide-title, .dark h2.section-title { color: var(--white); }
.dark .subhead { color: rgba(255,255,255,0.7); }
.dark .eyebrow { color: var(--voda-blue-soft); }

/* --------------------------------------------------------------------------
   Reusable building blocks
   -------------------------------------------------------------------------- */

.panel {
  background: var(--panel-light);
  border-radius: 4px;
  padding: 32px;
}

.panel-dark {
  background: var(--navy);
  color: var(--white);
  border-radius: 4px;
  padding: 32px;
}
.panel-dark .eyebrow { color: var(--voda-blue-soft); }

.panel-ice {
  background: var(--voda-blue-ice);
  border-radius: 4px;
  padding: 24px;
}

.row { display: flex; gap: 16px; }
.col { flex: 1; min-width: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Spec-row label/value (used in case studies and tank specs) */
.spec-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--panel-line);
  font-size: 15px;
}
.spec-row:last-child { border-bottom: none; }
.spec-row .label {
  color: var(--voda-blue);
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 500;
  text-transform: uppercase;
  padding-top: 2px;
}
.spec-row .value { color: var(--text); line-height: 1.45; }
.panel-dark .spec-row { border-bottom-color: rgba(255,255,255,0.1); }
.panel-dark .spec-row .label { color: var(--voda-blue-soft); }
.panel-dark .spec-row .value { color: var(--white); }

/* Subsection header inside a panel */
.panel-header {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--voda-blue);
  font-weight: 500;
  margin: 0 0 16px;
  text-transform: uppercase;
}
.panel-dark .panel-header { color: var(--voda-blue-soft); }

/* Bullet list with no bullets - just spaced lines */
.line-list {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}
.line-list li { padding: 3px 0; }
.panel-dark .line-list { color: var(--white); }

/* Header label with underline */
.h-underline {
  display: inline-block;
  font-weight: 700;
  font-size: 17px;
  color: var(--navy-text);
  padding-bottom: 4px;
  border-bottom: 2px solid var(--voda-blue);
  margin-bottom: 12px;
}

/* --------------------------------------------------------------------------
   Slide 1 — Title
   -------------------------------------------------------------------------- */

.s1-body {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 96px;
}

.s1-eyebrow {
  position: absolute;
  top: 130px;
  left: 96px;
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--voda-blue);
  font-weight: 500;
}

.s1-logo {
  width: 360px;
  height: auto;
  margin-bottom: 64px;
}

.s1-tagline {
  font-style: italic;
  font-size: 64px;
  font-weight: 400;
  color: var(--navy-text);
  margin: 0 0 32px;
  font-family: var(--font-serif);
}

.s1-desc {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0;
}

.s1-corner {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 380px;
  height: 220px;
  background: var(--voda-blue);
}

.s1-footer {
  position: absolute;
  bottom: 32px;
  left: 56px;
  right: 56px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--panel-line);
}

.s1-footer .addr {
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.12em;
}
.s1-footer .addr small { display: block; font-weight: 400; letter-spacing: 0.06em; margin-top: 4px; color: var(--text-faint); }

.s1-certs {
  position: absolute;
  bottom: 32px;
  left: 56px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  display: flex;
  gap: 24px;
}
.s1-certs span { padding-right: 24px; border-right: 1px solid var(--panel-line); }
.s1-certs span:last-child { border-right: none; padding-right: 0; }

.s1-page {
  position: absolute;
  bottom: 80px;
  right: 56px;
  color: var(--white);
  font-size: 12px;
  letter-spacing: 0.18em;
  z-index: 2;
  text-align: right;
  line-height: 1.6;
}
.s1-page .num { font-size: 22px; font-weight: 700; letter-spacing: 0.06em; display: block; margin-bottom: 4px; }

/* --------------------------------------------------------------------------
   Slide 2 — System Overview
   -------------------------------------------------------------------------- */

.s2-body { position: absolute; top: 120px; left: 56px; right: 56px; bottom: 100px; }

.process-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--panel-line);
  border-bottom: 1px solid var(--panel-line);
  margin: 24px 0 18px;
}
.process-step {
  padding: 20px 24px 20px 0;
  border-right: 1px solid var(--panel-line);
}
.process-step:last-child { border-right: none; padding-right: 0; }
.process-step:not(:first-child) { padding-left: 24px; }
.process-step .step-num {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--voda-blue);
  font-weight: 500;
  margin-bottom: 6px;
}
.process-step .step-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-text);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.process-step .step-desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-muted);
}

.gravity-callout {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 28px;
}
.gravity-callout::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--voda-blue);
  display: block;
  flex-shrink: 0;
}

.s2-bottom { display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px; }

/* --------------------------------------------------------------------------
   Case study slides (3, 4, 5)
   -------------------------------------------------------------------------- */

.cs-body { position: absolute; top: 120px; left: 56px; right: 56px; bottom: 80px; display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }

.cs-head { margin-bottom: 22px; }
.cs-head .subhead { margin: 8px 0 0; max-width: 100%; }

.cs-left { display: flex; flex-direction: column; gap: 18px; }
.cs-right { display: flex; flex-direction: column; gap: 18px; }

.image-placeholder {
  flex: 1;
  background: var(--voda-blue-ice);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--voda-blue);
  font-size: 13px;
  letter-spacing: 0.18em;
  font-weight: 500;
  min-height: 280px;
}
.image-placeholder::before { content: 'PHOTO'; opacity: 0.5; }

/* --------------------------------------------------------------------------
   Slide 6 — Phase 1 Starter Package
   -------------------------------------------------------------------------- */

.s6-body { position: absolute; top: 100px; left: 56px; right: 56px; bottom: 80px; }

.pricing-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 24px 0 32px;
}

.pricing-card {
  border-radius: 4px;
  padding: 36px 36px 32px;
}
.pricing-card.gravity { background: var(--panel-light); color: var(--text); }
.pricing-card.pump { background: var(--navy); color: var(--white); }
.pricing-card .option-label {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--voda-blue);
  font-weight: 500;
  margin-bottom: 10px;
}
.pricing-card.pump .option-label { color: var(--voda-blue-soft); }
.pricing-card .system-name {
  font-size: 32px;
  font-weight: 700;
  color: var(--navy-text);
  margin-bottom: 6px;
  letter-spacing: -0.005em;
}
.pricing-card.pump .system-name { color: var(--white); }
.pricing-card .system-tag {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.pricing-card.pump .system-tag { color: rgba(255,255,255,0.6); }
.pricing-card .price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--panel-line);
  padding-bottom: 14px;
}
.pricing-card.pump .price { border-bottom-color: rgba(255,255,255,0.15); }
.pricing-card .price .rm {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
.pricing-card.pump .price .rm { color: rgba(255,255,255,0.6); }
.pricing-card .price .amount {
  font-size: 72px;
  font-weight: 700;
  color: var(--navy-text);
  letter-spacing: -0.02em;
  line-height: 1;
  font-family: var(--font-serif);
}
.pricing-card.pump .price .amount { color: var(--white); }
.pricing-card .price-note {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-muted);
  margin: 0;
}
.pricing-card.pump .price-note { color: rgba(255,255,255,0.7); }

.s6-footer {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--panel-line);
}
.s6-footer .col h4 {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--voda-blue);
  font-weight: 500;
  text-transform: uppercase;
}
.s6-footer .col p { margin: 0; font-size: 14px; color: var(--text); line-height: 1.5; }

/* --------------------------------------------------------------------------
   Slide 7 — Defined Scope
   -------------------------------------------------------------------------- */

.s7-body { position: absolute; top: 110px; left: 56px; right: 56px; bottom: 80px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; }

.scope-list { display: flex; flex-direction: column; }
.scope-row {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--panel-line);
  font-size: 15px;
}
.scope-row .qty {
  font-size: 28px;
  font-weight: 700;
  color: var(--voda-blue);
  font-family: var(--font-serif);
}
.scope-row .qty.b { color: var(--text-faint); }
.scope-row .item { color: var(--navy-text); font-weight: 600; font-size: 16px; }
.scope-row .item small { display: block; font-weight: 400; color: var(--text-muted); font-size: 13px; margin-top: 3px; }
.scope-row .tag {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  text-align: right;
  line-height: 1.5;
}
.scope-row .tag.alt { color: var(--voda-blue); }

.footprint {
  background: var(--navy);
  color: var(--white);
  border-radius: 4px;
  padding: 28px;
  position: relative;
  display: flex;
  flex-direction: column;
}
.footprint h4 { margin: 0; font-size: 12px; letter-spacing: 0.22em; color: var(--voda-blue-soft); font-weight: 500; }
.footprint p.sub { margin: 4px 0 24px; font-size: 14px; color: rgba(255,255,255,0.75); }

.diagram {
  flex: 1;
  border: 1px dashed rgba(255,255,255,0.25);
  border-radius: 4px;
  position: relative;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}
.diagram .tanks-row { display: flex; gap: 6px; height: 100px; }
.diagram .tank {
  flex: 1;
  background: var(--voda-blue);
  border-radius: 2px;
}
.diagram .tank.first { background: var(--voda-blue-soft); opacity: 0.7; }
.diagram .tanks-row.partial { width: 12%; }
.diagram .dim-w {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
}
.diagram .dim-h {
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%) rotate(-90deg);
  font-size: 11px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
}

.footprint .stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.footprint .stat .v { font-family: var(--font-serif); font-size: 36px; font-weight: 700; color: var(--white); letter-spacing: -0.01em; line-height: 1; }
.footprint .stat .v sup { font-size: 14px; font-weight: 400; color: rgba(255,255,255,0.7); margin-left: 4px; }
.footprint .stat .l { font-size: 11px; letter-spacing: 0.18em; color: rgba(255,255,255,0.6); margin-top: 6px; text-transform: uppercase; }

/* --------------------------------------------------------------------------
   Slide 8 — Payback
   -------------------------------------------------------------------------- */

.s8-body { position: absolute; top: 110px; left: 56px; right: 56px; bottom: 90px; display: grid; grid-template-rows: 1fr auto; gap: 28px; }

.s8-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 24px; }

.baseline-card { background: var(--panel-light); padding: 32px; border-radius: 4px; }
.baseline-card .stat-block { padding: 16px 0; border-bottom: 1px solid var(--panel-line); }
.baseline-card .stat-block:first-of-type { padding-top: 0; }
.baseline-card .stat-block:last-of-type { border-bottom: none; }
.baseline-card .stat-block .lbl {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--voda-blue);
  font-weight: 500;
  margin-bottom: 6px;
  text-transform: uppercase;
}
.baseline-card .stat-block .val {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-text);
  line-height: 1;
  letter-spacing: -0.01em;
}
.baseline-card .stat-block .val .unit {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 8px;
}
.baseline-card .stat-block .val.savings { color: var(--voda-blue); }
.baseline-card .stat-block .val.savings .cents { font-size: 22px; font-weight: 500; color: var(--voda-blue); margin-left: 2px; }
.baseline-card .stat-block .note { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.payback-card { background: var(--navy); color: var(--white); border-radius: 4px; padding: 32px; }

.payback-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.payback-table th {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--voda-blue-soft);
  font-weight: 500;
  text-align: right;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  text-transform: uppercase;
}
.payback-table th:first-child { text-align: left; }
.payback-table td {
  padding: 18px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  text-align: right;
}
.payback-table td:first-child { text-align: left; color: rgba(255,255,255,0.7); }
.payback-table td .yrs-num {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--white);
  margin-right: 4px;
  letter-spacing: -0.01em;
}
.payback-table td .yrs-unit { font-size: 11px; color: rgba(255,255,255,0.55); letter-spacing: 0.16em; }
.payback-table tr.savings-row td { border-bottom: none; padding-top: 22px; }
.payback-table tr.savings-row td:first-child {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--voda-blue-soft);
  text-transform: uppercase;
}
.payback-table tr.savings-row td:last-child {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--white);
  font-weight: 700;
}

.s8-takeaways {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  border-top: 2px solid var(--voda-blue);
  padding-top: 18px;
  padding-right: 100px;       /* avoid colliding with page-number element */
}
.s8-takeaways p { margin: 0; font-size: 14px; line-height: 1.5; color: var(--text); }
.s8-takeaways strong { color: var(--navy-text); }

/* --------------------------------------------------------------------------
   Slide 9 — Next Steps
   -------------------------------------------------------------------------- */

.s9-body { position: absolute; top: 110px; left: 56px; right: 56px; bottom: 80px; display: grid; grid-template-columns: 1.15fr 1fr; gap: 36px; }

.var-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 28px; }
.var-card { background: var(--voda-blue-ice); border-radius: 4px; padding: 20px; }
.var-card .v-lbl { font-size: 11px; letter-spacing: 0.22em; color: var(--voda-blue); font-weight: 600; margin-bottom: 8px; }
.var-card .v-text { font-size: 15px; color: var(--navy-text); line-height: 1.5; }

.confirms-list { margin: 16px 0 0; padding: 0; list-style: none; }
.confirms-list li { padding: 9px 0; font-size: 14px; line-height: 1.5; color: var(--text); border-bottom: 1px dashed var(--panel-line); }
.confirms-list li:last-child { border-bottom: none; }
.confirms-list li strong { color: var(--navy-text); font-weight: 700; }

.s9-right { display: flex; flex-direction: column; gap: 18px; }

.monitor-block .panel-header { margin-bottom: 12px; }
.monitor-block p { margin: 0 0 10px; font-size: 14px; line-height: 1.55; color: var(--text); }
.monitor-block strong { color: var(--navy-text); }

.next-step-callout {
  background: var(--navy);
  color: var(--white);
  border-radius: 4px;
  padding: 28px 32px;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 20px;
  align-items: start;
}
.next-step-callout .label {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--voda-blue-soft);
  font-weight: 500;
  text-transform: uppercase;
}
.next-step-callout p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--white); }
.next-step-callout em { font-style: normal; color: var(--voda-blue-soft); font-weight: 600; }

/* --------------------------------------------------------------------------
   Slide 10 — VODA Cylinder
   -------------------------------------------------------------------------- */

.s10-body { position: absolute; top: 120px; left: 56px; right: 56px; bottom: 80px; display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.s10-image {
  border-radius: 4px;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  position: relative;
}
/* Darker thumb backgrounds on slide 10 so they don't disappear into the panel */
.s10-image .thumb { background: var(--voda-blue-ice); border: 1px solid #C7DBE6; }
.s10-image .thumb:nth-child(odd) { background: linear-gradient(135deg, #E3F0F7 0%, #C7DBE6 100%); }
.s10-image .thumb:nth-child(even) { background: linear-gradient(135deg, #C7DBE6 0%, #A6C4D4 100%); }
.cylinder-illustration {
  display: flex;
  gap: 24px;
  align-items: flex-end;
  padding: 60px;
}
.cylinder-tank {
  width: 80px;
  background: var(--voda-blue);
  border-radius: 8px 8px 4px 4px;
  position: relative;
}
.cylinder-tank::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 12px;
  right: 12px;
  height: 4px;
  background: var(--voda-blue-soft);
  border-radius: 2px;
}
.cylinder-tank.t1 { height: 240px; }
.cylinder-tank.t2 { height: 200px; }
.cylinder-tank.t3 { height: 280px; }
.cylinder-tank.t4 { height: 180px; }

.s10-card { padding: 36px; display: flex; flex-direction: column; }
.s10-card .panel-header { margin-bottom: 12px; }
.s10-card .product-name { font-size: 48px; font-weight: 700; color: var(--white); margin: 0 0 18px; letter-spacing: -0.01em; line-height: 1; }
.s10-card .product-desc { font-size: 15px; color: rgba(255,255,255,0.75); line-height: 1.6; margin: 0 0 auto; max-width: 460px; }
.s10-card .specs { margin-top: 24px; }

/* --------------------------------------------------------------------------
   Slide 11 — Wall-Mounted Range
   -------------------------------------------------------------------------- */

.s11-body { position: absolute; top: 120px; left: 56px; right: 56px; bottom: 80px; }
.range-grid { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 20px; height: 100%; }
.range-card {
  background: var(--white);
  border: 1px solid var(--panel-line);
  border-radius: 4px;
  padding: 32px;
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 28px;
}
.range-card .accent { background: var(--voda-blue-ice); border-radius: 2px; }
.range-card.flagship .accent { background: var(--voda-blue); }
.range-card .content { display: flex; flex-direction: column; }
.range-card .tag { font-size: 11px; letter-spacing: 0.22em; color: var(--voda-blue); font-weight: 600; margin-bottom: 8px; text-transform: uppercase; }
.range-card .name { font-size: 36px; font-weight: 700; color: var(--navy-text); margin: 0 0 14px; letter-spacing: -0.01em; }
.range-card .desc { font-size: 14px; color: var(--text-muted); line-height: 1.55; margin: 0; max-width: 92%; }

/* --------------------------------------------------------------------------
   Slide 12 — Closing
   -------------------------------------------------------------------------- */

.s12-body { position: absolute; top: 110px; left: 56px; right: 56px; bottom: 80px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; }

.closing-eyebrow {
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--voda-blue-soft);
  font-weight: 500;
  margin-bottom: 28px;
}

.closing-statement {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 64px;
  font-weight: 500;
  color: var(--white);
  line-height: 1.15;
  margin: 0 0 40px;
  letter-spacing: -0.01em;
}
.closing-statement em { font-style: italic; color: var(--voda-blue); }

.closing-takeaways {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 2px solid var(--voda-blue);
  padding-top: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 28px;
}
.closing-takeaways li {
  font-size: 13px;
  color: rgba(255,255,255,0.8);
  line-height: 1.55;
}
.closing-takeaways li strong { color: var(--white); font-weight: 600; }

.contact-block { display: flex; flex-direction: column; gap: 24px; align-self: center; }
.contact-block h4 { margin: 0 0 8px; font-size: 12px; letter-spacing: 0.22em; color: var(--voda-blue-soft); font-weight: 500; text-transform: uppercase; }
.contact-block .name { font-size: 24px; font-weight: 700; color: var(--white); margin: 0 0 6px; }
.contact-block .addr { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.55; margin: 0; }
.contact-block a { color: var(--voda-blue-soft); text-decoration: none; font-size: 16px; }
.contact-block a:hover { color: var(--white); text-decoration: underline; }
.contact-block .creds {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.12);
}

/* --------------------------------------------------------------------------
   Top nav / page header — brand bar + slide tabs
   -------------------------------------------------------------------------- */

.deck-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(20, 22, 28, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #2a2a2e;
  color: #ddd;
}

.brand-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 32px;
  border-bottom: 1px solid #2a2a2e;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}
.brand img { width: 32px; height: 32px; object-fit: contain; }
.brand .title { font-size: 14px; font-weight: 600; color: #fff; }
.brand .meta { font-size: 12px; color: #888; margin-top: 2px; }

.brand-actions { display: flex; gap: 8px; }
.btn-ghost {
  background: transparent;
  color: #aaa;
  border: 1px solid #333;
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all 0.15s;
  font-family: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-ghost:hover {
  background: var(--voda-blue);
  color: #fff;
  border-color: var(--voda-blue);
}

.slide-tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: #333 transparent;
  padding: 0 24px;
}
.slide-tabs::-webkit-scrollbar { height: 4px; }
.slide-tabs::-webkit-scrollbar-thumb { background: #333; }

.slide-tabs a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 16px;
  font-size: 13px;
  color: #888;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.slide-tabs a:hover { color: #ddd; }
.slide-tabs a .num {
  font-size: 11px;
  color: #555;
  letter-spacing: 0.08em;
  font-family: var(--font-serif);
}
.slide-tabs a:hover .num { color: var(--voda-blue-soft); }
.slide-tabs a .label { font-weight: 500; }
.slide-tabs a.current {
  color: #fff;
  border-bottom-color: var(--voda-blue);
}
.slide-tabs a.current .num { color: var(--voda-blue); }

.deck-footer { display: none; }

/* --------------------------------------------------------------------------
   Floating prev/next nav (bottom of viewport)
   -------------------------------------------------------------------------- */

.nav-fab {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(15, 17, 22, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid #2a2a2e;
  border-radius: 999px;
  padding: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.fab {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: #ddd;
  border: none;
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.fab:hover:not(:disabled) { background: var(--voda-blue); color: #fff; }
.fab:disabled { opacity: 0.3; cursor: default; }
.fab.prev { padding-left: 12px; }
.fab.next { padding-right: 12px; }
.fab-counter {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #888;
  padding: 0 14px;
  border-left: 1px solid #2a2a2e;
  border-right: 1px solid #2a2a2e;
  font-family: var(--font-serif);
}
.fab-counter #fabCurrent { color: var(--voda-blue); font-weight: 700; }

/* --------------------------------------------------------------------------
   Thumbnail grid + lightbox
   -------------------------------------------------------------------------- */

.thumb-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  flex: 1;
  min-height: 280px;
}
.thumb-grid.wide {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  min-height: 0;
  height: 100%;
}
.thumb {
  position: relative;
  background: var(--voda-blue-ice);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.2s;
  padding: 0;
  font-family: inherit;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 100px;
}
.thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.55) 100%);
  opacity: 0;
  transition: opacity 0.2s;
}
.thumb::after {
  content: '';
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  height: 28px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%231FB0F1' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'%3E%3C/line%3E%3Cline x1='11' y1='8' x2='11' y2='14'%3E%3C/line%3E%3Cline x1='8' y1='11' x2='14' y2='11'%3E%3C/line%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.thumb:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(31, 176, 241, 0.25); }
.thumb:hover::before { opacity: 1; }
.thumb:hover::after { opacity: 1; }
.thumb:focus-visible { outline: 2px solid var(--voda-blue); outline-offset: 2px; }

.thumb-label {
  position: absolute;
  bottom: 10px;
  left: 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  font-weight: 600;
  color: var(--voda-blue);
  background: rgba(255,255,255,0.85);
  padding: 4px 8px;
  border-radius: 2px;
  text-transform: uppercase;
}
.thumb:hover .thumb-label { background: #fff; color: var(--navy-text); }

/* Lightbox */
[hidden] { display: none !important; }
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(8, 10, 16, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 80px 100px;
  animation: lbFade 0.18s ease-out;
}
.lb-arrow[hidden], .lb-placeholder[hidden] { display: none !important; }
@keyframes lbFade { from { opacity: 0; } to { opacity: 1; } }

.lb-close {
  position: absolute;
  top: 20px;
  left: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}
.lb-close:hover { background: var(--voda-blue); border-color: var(--voda-blue); }

.lb-title {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  font-weight: 500;
}

.lb-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s;
}
.lb-arrow:hover { background: var(--voda-blue); border-color: var(--voda-blue); }
.lb-prev { left: 24px; }
.lb-next { right: 24px; }

.lb-stage {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  max-height: calc(100vh - 200px);
}
.lb-stage img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 16px 64px rgba(0,0,0,0.5);
}

.lb-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: rgba(255,255,255,0.6);
  padding: 60px;
  border: 1px dashed rgba(255,255,255,0.15);
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
}
.lb-placeholder .lb-ph-icon { color: rgba(255,255,255,0.25); }
.lb-placeholder .lb-ph-text { font-size: 18px; font-weight: 500; color: rgba(255,255,255,0.75); }
.lb-placeholder .lb-ph-sub { font-size: 13px; color: rgba(255,255,255,0.45); }
.lb-placeholder code {
  background: rgba(255,255,255,0.08);
  padding: 3px 7px;
  border-radius: 3px;
  color: var(--voda-blue-soft);
  font-family: 'Consolas', monospace;
}

.lb-caption {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  font-weight: 500;
  background: rgba(0,0,0,0.4);
  padding: 8px 18px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  max-width: 70%;
  text-align: center;
}

body.lightbox-open { overflow: hidden; }

/* --------------------------------------------------------------------------
   Slide 8 — Tariff control + monthly bars
   -------------------------------------------------------------------------- */

.s8-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.tariff-control {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  min-width: 320px;
}
.tariff-control label {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--voda-blue);
  font-weight: 600;
  text-transform: uppercase;
}
.tariff-control select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--white);
  border: 1px solid var(--panel-line);
  border-radius: 4px;
  padding: 12px 38px 12px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--navy-text);
  font-family: inherit;
  cursor: pointer;
  width: 100%;
  min-width: 280px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%231FB0F1' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.tariff-control select:hover { border-color: var(--voda-blue); }
.tariff-control select:focus { outline: none; border-color: var(--voda-blue); box-shadow: 0 0 0 3px rgba(31,176,241,0.15); }
.tariff-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}
.tariff-meta .rate {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--voda-blue);
}
.tariff-meta .rate small {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
}
.tariff-meta .asof {
  padding-left: 12px;
  border-left: 1px solid var(--panel-line);
  letter-spacing: 0.04em;
}

.monthly-chart {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mc-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}
.mc-title {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--voda-blue-soft);
  font-weight: 600;
  text-transform: uppercase;
}
.mc-note { font-size: 11px; color: rgba(255,255,255,0.5); }

.mc-bars {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 6px;
  height: 110px;
  align-items: end;
}
.mc-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.mc-track {
  width: 100%;
  height: 70px;
  background: rgba(255,255,255,0.04);
  border-radius: 2px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.mc-fill {
  width: 100%;
  background: linear-gradient(180deg, var(--voda-blue-soft), var(--voda-blue));
  border-radius: 2px 2px 0 0;
  transition: height 0.35s ease-out;
}
.mc-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
}
.mc-val {
  font-size: 10px;
  font-weight: 600;
  color: var(--voda-blue-soft);
  font-family: var(--font-serif);
}

/* --------------------------------------------------------------------------
   Overview mode (press G) — all 12 slides as a clickable grid
   -------------------------------------------------------------------------- */

body.overview-mode { overflow: auto; }
body.overview-mode .deck {
  position: static;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 32px;
  padding-top: calc(var(--header-h, 140px) + 32px);
}
body.overview-mode .slide-wrap {
  position: relative;
  inset: auto;
  width: 100%;
  aspect-ratio: 16 / 9;
  opacity: 1;
  visibility: visible;
  cursor: zoom-in;
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
body.overview-mode .slide-wrap:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 40px rgba(31, 176, 241, 0.3);
}
body.overview-mode .nav-fab { display: none; }
body.overview-mode .lightbox { display: none; }

/* --------------------------------------------------------------------------
   Present-mode launch overlay (shown when arriving via ?present=1)
   -------------------------------------------------------------------------- */

.present-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(8, 10, 16, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: lbFade 0.18s ease-out;
}
.present-start {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: var(--voda-blue);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 36px 56px;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 24px 64px rgba(31, 176, 241, 0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.present-start:hover {
  transform: translateY(-2px);
  box-shadow: 0 32px 80px rgba(31, 176, 241, 0.5);
}
.present-start:active { transform: translateY(0); }
.present-start .play-icon {
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.18);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.present-start .present-label {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.005em;
}
.present-start .present-sub {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  font-weight: 500;
}
.present-start .present-sub kbd {
  background: rgba(255,255,255,0.18);
  color: #fff;
  padding: 1px 6px;
  border-radius: 3px;
  font-family: inherit;
  font-size: 10px;
  border: 1px solid rgba(255,255,255,0.18);
}