/* Burton Design & Construction, LLC × Brandcore — presentation stylesheet.
   One coherent system, zero override layers.
   Surfaces: Architectural Midnight Slate (#0B101B / #131B2E) and Warm Limestone Paper (#F7F4ED / #FFFFFF).
   Brand accents drawn from Burton's mark & twilight estates:
   - Role A (Decorative / Rule): Architectural Brass (#D49A3A) & Burton Royal Blue (#1E4D9B)
   - Role B (Large Display on Dark >= 4.5:1): Luminous Brass (#F0B456 — 10.6:1 on #0B101B)
   - Role C (Small Text / Kicker on Dark >= 7:1): Crisp Warm Gold (#F5C26B — 11.8:1 on #0B101B)
   - Role D (Small Text / Kicker & Solid Badges on Light Paper >= 7:1): Deep Bronze-Ink (#6E4208 — 8.1:1 on #F7F4ED) & Deep Royal Navy (#13346E — 10.4:1 on #F7F4ED)
   Every text colour below is paired with the surface it actually sits on and
   measured at WCAG AAA (7:1+ for body/small/mono text, 4.5:1+ for large display text). */

@font-face {
  font-family: 'Space Grotesk';
  src: url('assets/fonts/space-grotesk-500-normal.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  src: url('assets/fonts/plus-jakarta-sans-400-normal.woff2') format('woff2');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('assets/fonts/jetbrains-mono-400-normal.woff2') format('woff2');
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --font-display: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;

  --black: #000000;
  --carbon-0: #060911;
  --carbon: #0B101B;         /* Midnight architectural slate (base dark) */
  --carbon-1: #0B101B;
  --carbon-2: #131B2E;       /* Elevated slate card on dark */
  --carbon-3: #1B2640;       /* Raised slate accent */
  --paper: #F7F4ED;          /* Warm limestone paper (base light) */
  --paper-1: #F7F4ED;
  --paper-2: #ECE7DC;        /* Secondary stone surface */
  --paper-ink: #0B101B;      /* 17.2:1 on #F7F4ED */

  --burton-blue: #1E4D9B;    /* Official Burton logo royal blue */
  --burton-navy: #13346E;    /* 10.4:1 on #F7F4ED paper */
  --accent: #C88A2E;         /* Role A decorative architectural brass */
  --accent-bright: #F0B456;  /* Role B/C luminous brass on dark (10.6:1 on #0B101B) */
  --accent-gold-deep: #6E4208; /* Role D deep bronze on light paper (8.1:1 on #F7F4ED) */

  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 9px;
}

.carbon {
  --bg: var(--carbon);
  --surface: var(--carbon-2);
  --line: rgba(255, 255, 255, 0.13);
  --ink: #FFFFFF;            /* 19.1:1 on #0B101B */
  --ink-2: #E6ECF5;          /* 15.8:1 on #0B101B */
  --ink-3: #C9D3E3;          /* 12.1:1 on #0B101B */
  --em: var(--accent-bright);
  --rule: var(--accent-bright);
  --kicker-ink: var(--accent-bright);
}

.paper {
  --bg: var(--paper);
  --surface: #FFFFFF;
  --line: rgba(11, 16, 27, 0.13);
  --ink: var(--paper-ink);   /* 17.2:1 on #F7F4ED */
  --ink-2: #1E2738;          /* 12.8:1 on #F7F4ED */
  --ink-3: #333F54;          /* 8.9:1 on #F7F4ED */
  --em: var(--burton-navy);  /* 10.4:1 on #F7F4ED */
  --rule: var(--burton-blue);
  --kicker-ink: var(--accent-gold-deep); /* 8.1:1 on #F7F4ED */
}

*, *::before, *::after { box-sizing: border-box; }

.nowrap { white-space: nowrap; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--carbon-0);
  color: #FFFFFF;
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p, figure, dl, dd { margin: 0; }
button, a, input { font: inherit; }

.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.ico, .date-icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  flex: none;
  vertical-align: -0.14em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ------------------------------------------------------------------ canvas & slides */
.deck {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--carbon-0);
}

.slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(18px, 2.5vh, 30px) clamp(28px, 3.8vw, 60px);
  background: var(--bg);
  color: var(--ink);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
}

.slide.active {
  opacity: 1;
  pointer-events: auto;
  z-index: 2;
}

.slide-body {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(12px, 2vh, 22px);
}

.slide-body.two {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: clamp(24px, 3.2vw, 52px);
  align-items: center;
}

/* ------------------------------------------------------------------ header lockup: WIDE ARCHITECTURAL PLAQUE */
.slide-head {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: clamp(8px, 1.2vh, 13px);
  border-bottom: 1px solid var(--line);
}

.header-brand {
  display: inline-flex;
  align-items: center;
  gap: clamp(12px, 1.1vw, 18px);
}

.header-logo-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(140px, 10.5vw, 176px);
  height: clamp(64px, 7.6vh, 80px);
  padding: 3px 6px;
  border-radius: 10px;
  background: #FFFFFF;
  border: 1.5px solid rgba(30, 77, 155, 0.28);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  flex: none;
}

.header-logo-pill img,
.cover-badge img,
.profile-logo-overlay img,
.phone-appbar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: none;
  opacity: 1;
  mix-blend-mode: normal;
}

.header-wordmark b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(17px, 1.28vw, 21px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink);
}

.header-wordmark small {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--kicker-ink);
}

.header-meta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.header-meta::before {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--rule);
}

/* ------------------------------------------------------------------ footer */
.slide-foot {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: clamp(7px, 1.1vh, 12px);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.page {
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ink-2);
}

/* ------------------------------------------------------------------ shared typography & chips */
.eyebrow, .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(4px, 0.7vh, 7px);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--kicker-ink);
}

.eyebrow::before, .kicker::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--rule);
  flex: none;
}

h1, h2 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
}

h1 em, h2 em {
  display: block;
  font-style: normal;
  color: var(--em);
}

h1 {
  font-size: clamp(28px, min(2.75vw, 4.8vh), 46px);
  line-height: 1.04;
  letter-spacing: -0.028em;
}

h2 {
  font-size: clamp(25px, min(2.35vw, 4.2vh), 42px);
  line-height: 1.06;
  letter-spacing: -0.024em;
}

h3 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
}

.lead {
  max-width: 60ch;
  margin-top: clamp(5px, 0.85vh, 10px);
  font-size: clamp(14px, min(1.02vw, 1.8vh), 16.5px);
  line-height: 1.46;
  color: var(--ink-2);
}

.num-chip {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: clamp(32px, 3.6vh, 38px);
  height: clamp(32px, 3.6vh, 38px);
  border-radius: 10px;
  background: var(--carbon-2);
  border: 1px solid rgba(240, 180, 86, 0.45);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--accent-bright);
}

.paper .num-chip {
  background: var(--burton-navy);
  border: 1px solid var(--burton-navy);
  color: #FFFFFF;
}

.num-chip.featured,
.exec-phase-card.featured .exec-phase-num {
  background: var(--accent-bright);
  color: #0B101B;
  font-weight: 800;
  border-color: var(--accent-bright);
}

/* Calibrated .crop-chrome for full-bleed 16:9 nano-mockup.jpg */
.crop-chrome {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #0B101B;
}

.crop-chrome img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  opacity: 1;
  filter: none;
}

.browser-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 14px;
  height: clamp(30px, 3.8vh, 38px);
  padding: 0 14px;
  background: #131B2E;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.browser-dots { display: inline-flex; gap: 7px; }
.browser-dots i { width: 10px; height: 10px; border-radius: 50%; background: #FF5F57; }
.browser-dots i:nth-child(2) { background: #FEBC2E; }
.browser-dots i:nth-child(3) { background: #28C840; }

.browser-url {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 240px;
  padding: 4px 16px;
  border-radius: 8px;
  background: var(--carbon);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: #E6ECF5;
}

.browser-tag {
  justify-self: end;
  padding: 3px 6px;
  border-radius: 6px;
  background: var(--accent-bright);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: #0B101B;
}

/* === BEGIN SLIDE 1 CSS === */
.slide.cover { display: none; padding: 0; }
.slide.cover.active { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); }
.hero-copy { position: relative; display: flex; flex-direction: column; justify-content: center; gap: 12px; padding: 30px 42px 90px; }
.cover-collab { display: inline-flex; align-items: center; gap: 10px; align-self: flex-start; margin-bottom: 4px; }
.brandcore-collab-logo { width: auto; height: 24px; }
.collab-sep { color: var(--accent-bright); }
.collab-label { font: 600 10px var(--font-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-2); }
.cover-lockup { margin: 10px 0; }
.cover-badge { display: flex; align-items: center; justify-content: center; width: clamp(230px,20vw,320px); aspect-ratio: 495/224; padding: 8px 12px; border-radius: 12px; background: white; }
.hero-copy h1 { font-size: clamp(32px,min(2.7vw,4.5vh),46px); line-height: 1.08; }
.fact-pills { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 8px 0 0; list-style: none; }
.fact-pills li { display: inline-flex; align-items: center; gap: 6px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 12px; color: var(--ink-2); }
.fact-pills .ico { color: var(--accent-bright); }
.cover-foot { position: absolute; left: 42px; right: 42px; bottom: 20px; display: flex; justify-content: space-between; align-items: center; gap: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.prepared-by { display: flex; align-items: center; gap: 10px; color: var(--ink-2); font-size: 12px; }
.prepared-by img { flex: none; width: 40px; height: 40px; object-fit: contain; }
.proposal-route-panel { display: flex; flex-direction: column; justify-content: center; gap: 16px; padding: clamp(28px,3vw,48px); background: var(--paper); color: var(--paper-ink); }
.proposal-route-panel .kicker { color: var(--burton-navy); }
.proposal-route-panel h2 { color: var(--paper-ink); font-size: clamp(28px,2.4vw,40px); line-height: 1.12; }
.proposal-route-panel h2 em { color: var(--burton-blue); }
.route-intro { color: #333f54; font-size: 15px; line-height: 1.6; max-width: 48ch; }
.cover-routes { display: grid; gap: 12px; margin: 6px 0; }
.cover-route { display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: 16px; text-align: left; width: 100%; min-height: 88px; padding: 16px 18px; background: white; color: var(--paper-ink); border: 1px solid #c8cfdb; border-radius: 12px; cursor: pointer; }
.cover-route > span:first-child { font: 600 13px var(--font-mono); color: var(--burton-blue); }
.cover-route b { display: block; font: 600 20px var(--font-display); }
.cover-route small { display: block; margin-top: 5px; font-size: 13px; line-height: 1.5; color: #333f54; }
.cover-route i { font-style: normal; color: var(--burton-blue); font-size: 22px; }
.proposal-action { display: flex; justify-content: space-between; align-items: center; gap: 14px; min-height: 52px; padding: 14px 18px; border: 0; border-radius: 9px; background: var(--burton-blue); color: white; font-size: 14px; font-weight: 700; text-align: left; cursor: pointer; }
.route-note { color: #333f54; font-size: 11px; line-height: 1.6; }
.cover-route:hover, .cover-route:focus-visible { border-color: var(--burton-blue); box-shadow: 0 0 0 2px #1e4d9b30; }
/* === END SLIDE 1 CSS === */

/* === BEGIN SLIDE 2 CSS === */
.foundation .narrative-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.foundation .narrative-col h2 {
  font-size: clamp(23px, min(2.05vw, 3.6vh), 36px);
  line-height: 1.08;
}

.foundation .narrative-col .lead {
  margin-top: clamp(4px, 0.65vh, 8px);
  font-size: clamp(13.5px, min(0.92vw, 1.55vh), 15.5px);
  line-height: 1.4;
}

.narrative-pillars {
  display: grid;
  gap: clamp(7px, 1vh, 11px);
  margin-top: clamp(8px, 1.2vh, 14px);
}

.pillar-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding: clamp(9px, 1.15vh, 13px) clamp(12px, 1.1vw, 16px);
  border-radius: var(--radius-md);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-left: 3px solid var(--burton-blue);
  box-shadow: 0 8px 20px rgba(11, 16, 27, 0.06);
}

.pillar-card h3 {
  font-size: clamp(15px, 1.05vw, 17.5px);
  line-height: 1.2;
  color: var(--ink);
}

.pillar-card p {
  margin-top: 3px;
  font-size: clamp(13px, min(0.88vw, 1.45vh), 14.5px);
  line-height: 1.38;
  color: var(--ink-3);
}

.showcase-col { display: flex; flex-direction: column; justify-content: center; }

.profile-card {
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--carbon-2);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 28px 56px rgba(11, 16, 27, 0.26);
}

.profile-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 18px;
  background: var(--carbon);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: #FFFFFF;
}

.profile-band span + span { color: var(--accent-bright); letter-spacing: 0.08em; }

.profile-experience { display: grid; grid-template-columns: auto 1fr; gap: 10px 22px; align-items: center; padding: 24px; border-bottom: 1px solid #ffffff26; background: #173668; }
.profile-experience strong { font: 500 clamp(70px,7vw,108px)/1 var(--font-display); color: white; }
.profile-experience span { font-size: 19px; line-height: 1.4; color: white; }
.profile-experience small { grid-column: 1/-1; color: #e6ecf5; font-size: 12px; }
.profile-main {
  padding: clamp(14px, 1.8vh, 20px) clamp(16px, 1.8vw, 24px);
}

.profile-name b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(19px, 1.55vw, 24px);
  font-weight: 700;
  line-height: 1.08;
  color: #FFFFFF;
}

.profile-name span {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-bright);
}

.profile-dl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(10px, 1.3vh, 14px) clamp(14px, 1.5vw, 20px);
  margin-top: clamp(10px, 1.3vh, 14px);
  padding-top: clamp(10px, 1.3vh, 14px);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.profile-dl-grid dt {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: #C9D3E3;
}

.profile-dl-grid dt svg {
  margin-right: 6px;
  color: var(--accent-bright);
}

.profile-dl-grid dd {
  margin: 5px 0 0;
  font-size: clamp(13.5px, 0.94vw, 15px);
  font-weight: 600;
  line-height: 1.4;
  color: #FFFFFF;
}
/* === END SLIDE 2 CSS === */

/* === BEGIN SLIDE 3 CSS === */
.slide-body.stack {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(14px, 2.2vh, 24px);
}

.journey-head,
.proof-head,
.exec-head {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(20px, 2.8vw, 40px);
  align-items: end;
}

.diagnostic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: auto auto auto 1fr auto;
  column-gap: clamp(16px, 1.7vw, 26px);
}

.diagnostic-card {
  position: relative;
  grid-row: span 5;
  display: grid;
  grid-template-rows: subgrid;
  row-gap: clamp(8px, 1.2vh, 12px);
  padding: clamp(14px, 2vh, 20px);
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent-bright);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.4);
}

.diag-head { display: flex; align-items: center; gap: 10px; }

.diag-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.diag-ico {
  margin-left: auto;
  font-size: clamp(20px, 2.5vh, 26px);
  color: var(--accent-bright);
  stroke-width: 1.8;
}

.journey-module { min-height: 142px; display: flex; flex-direction: column; justify-content: space-between; gap: 4px; padding: 10px; border-radius: 10px; border: 1px solid #ffffff29; background: #0b101b; }
.module-label { font: 500 10px/1.5 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: #c9d3e3; }
.journey-module strong { font: 500 18px/1.3 var(--font-display); color: white; }
.journey-module ul { margin: 0; padding-left: 17px; color: #e6ecf5; font-size: 12px; line-height: 1.4; }
.journey-module button { min-height: 44px; border: 0; border-radius: 6px; padding: 9px; background: #233f6b; color: white; text-align: left; font-size: 12px; cursor: pointer; }
.contact-module a { display: flex; flex-wrap: wrap; gap: 5px 12px; align-items: center; justify-content: space-between; min-height: 44px; color: white; text-decoration: none; font-size: 13px; border-bottom: 1px solid #ffffff29; }
.diagnostic-card h3 {
  font-size: clamp(18px, min(1.38vw, 2.3vh), 22px);
  line-height: 1.18;
  color: #FFFFFF;
}

.diagnostic-card p {
  font-size: clamp(14px, min(0.98vw, 1.75vh), 16px);
  line-height: 1.44;
  color: #E6ECF5;
}

.diag-meta-pill {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  padding: clamp(9px, 1.2vh, 12px) 14px;
  border-radius: var(--radius-sm);
  background: rgba(240, 180, 86, 0.11);
  border: 1px solid rgba(240, 180, 86, 0.38);
  font-family: var(--font-mono);
  font-size: clamp(11.5px, 0.78vw, 12.5px);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.diag-meta-pill span { color: var(--accent-bright); text-transform: uppercase; font-size: 11px; letter-spacing: 0.13em; }
.diag-meta-pill b { color: #FFFFFF; font-weight: 700; }
/* === END SLIDE 3 CSS === */

/* === BEGIN SLIDE 4 CSS === */
.slide-body.website-grid { grid-template-columns: minmax(0,.65fr) minmax(0,1.35fr); gap: clamp(24px,2.5vw,40px); }
.website .narrative-col h2 { font-size: clamp(26px,min(2.1vw,3.8vh),36px); line-height: 1.1; }
.website .narrative-col .lead { margin-top: 12px; font-size: 14px; line-height: 1.6; }
.proposal-notes { display: grid; gap: 15px; margin-top: 22px; }
.proposal-notes p { border-top: 1px solid #b9c1ce; padding-top: 12px; }
.proposal-notes b { display: block; font-size: 14px; color: var(--burton-navy); }
.proposal-notes span { display: block; margin-top: 5px; font-size: 13px; line-height: 1.5; color: #333f54; }
.mockup-col { min-width: 0; width: 100%; }
.proposal-figure { width: min(100%,calc((100dvh - 320px)*1.5)); margin: auto; }
.proposal-image { display: block; width: 100%; height: auto; aspect-ratio: 3/2; object-fit: contain; border: 1px solid #cbd1d9; border-radius: 6px; box-shadow: 0 18px 36px #0b101b25; background: white; }
.proposal-figure figcaption { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; color: #333f54; font-size: 10.5px; line-height: 1.5; }
.full-preview { display: inline-flex; flex: none; min-height: 44px; align-items: center; padding: 9px 12px; border: 1px solid #acb7c8; border-radius: 7px; color: var(--burton-navy); text-decoration: none; font-size: 11px; font-weight: 700; background: white; }
.close-preview { display: none; }
.proposal-figure.is-expanded { position: fixed; inset: 0; z-index: 100; width: 100vw; height: 100dvh; margin: 0; padding: 72px 24px 24px; overflow: auto; background: #e7ecf2; }
.proposal-figure.is-expanded .proposal-image { width: max(100%,1536px); max-width: none; border-radius: 0; box-shadow: none; }
.proposal-figure.is-expanded figcaption { display: none; }
.proposal-figure.is-expanded .close-preview { position: fixed; z-index: 110; display: inline-flex; align-items: center; justify-content: center; top: 14px; right: 18px; min-height: 44px; padding: 10px 18px; border: 1px solid #8f9eb4; border-radius: 8px; color: #13346e; background: white; cursor: pointer; font-weight: 700; }
/* === END SLIDE 4 CSS === */

/* === BEGIN SLIDE 5 CSS === */
.comparison {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 2vw, 32px);
}

.case-frame {
  display: flex;
  flex-direction: column;
  width: calc(clamp(260px, 36vh, 380px) * 1.6);
  max-width: calc(50% - 12px);
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--carbon-0);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 30px 64px rgba(0, 0, 0, 0.5);
}

.case-frame.after {
  border-color: rgba(240, 180, 86, 0.55);
}

.case-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  height: 36px;
  padding: 0 14px;
  background: #131B2E;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.case-url {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: #E6ECF5;
}

.case-tag {
  justify-self: end;
  padding: 3px 6px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.case-tag.before { background: #2A3447; color: #FFFFFF; }
.case-tag.after { background: var(--accent-bright); color: #0B101B; font-weight: 700; }

.case-viewport {
  position: relative;
  width: 100%;
  height: clamp(260px, 36vh, 380px);
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #FFFFFF;
}

.case-viewport img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transform: scale(1.035);
  transform-origin: center top;
}

.case-frame figcaption {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  background: #131B2E;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  font-size: clamp(13.5px, 0.94vw, 15px);
  font-weight: 500;
  color: #D5DFEE;
}

.case-frame figcaption span {
  padding-right: 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #FFFFFF;
}
/* === END SLIDE 5 CSS === */

/* === BEGIN SLIDE 6 CSS === */
.exec-head { grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.72fr); }
.exec-head h2 { font-size: clamp(25px, min(2.35vw, 4.1vh), 40px); }

.exec-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: auto auto 1fr auto;
  column-gap: clamp(16px, 1.6vw, 26px);
}

.exec-phase-card {
  grid-row: span 4;
  display: grid;
  grid-template-rows: subgrid;
  row-gap: clamp(8px, 1.3vh, 13px);
  padding: clamp(16px, 2.2vh, 24px) clamp(16px, 1.5vw, 24px);
  border-radius: var(--radius-lg);
  background: #FFFFFF;
  border: 1px solid rgba(11, 16, 27, 0.12);
  border-top: 3px solid var(--burton-blue);
  box-shadow: 0 18px 40px rgba(11, 16, 27, 0.08);
}

.exec-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }

.exec-duration-pill {
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--paper-ink);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #FFFFFF;
}

.exec-phase-card h3 {
  font-size: clamp(18px, min(1.38vw, 2.35vh), 22px);
  line-height: 1.2;
  color: var(--paper-ink);
}

.exec-phase-card > p {
  font-size: clamp(14px, min(0.98vw, 1.75vh), 16px);
  line-height: 1.45;
  color: var(--ink-3);
}

.exec-deliverables {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: clamp(10px, 1.3vh, 13px) 0 0;
  list-style: none;
  border-top: 1px solid rgba(11, 16, 27, 0.11);
}

.exec-deliverables li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 9px;
  font-size: clamp(13.5px, min(0.94vw, 1.65vh), 15px);
  font-weight: 600;
  line-height: 1.38;
  color: var(--paper-ink);
}

.exec-deliverables .ico {
  margin-top: 0.12em;
  font-size: 1.08em;
  stroke-width: 2.5;
  color: var(--burton-blue);
}

.exec-phase-card.featured {
  background: var(--carbon);
  border-color: var(--carbon);
  border-top: 3px solid var(--accent-bright);
  box-shadow: 0 28px 60px rgba(11, 16, 27, 0.3);
}

.exec-phase-card.featured h3,
.exec-phase-card.featured .exec-deliverables li { color: #FFFFFF; }
.exec-phase-card.featured > p { color: #D5DFEE; }
.exec-phase-card.featured .exec-deliverables { border-top-color: rgba(255, 255, 255, 0.14); }
.exec-phase-card.featured .exec-deliverables .ico { color: var(--accent-bright); }
.exec-phase-card.featured .exec-duration-pill { background: var(--accent-bright); color: #0B101B; font-weight: 700; }

.exec-footer-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-radius: var(--radius-md);
  border: 1px solid rgba(11, 16, 27, 0.14);
  background: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.exec-footer-bar span { padding: 11px 16px; text-align: center; }
.exec-footer-bar span + span { border-left: 1px solid rgba(11, 16, 27, 0.12); }
.exec-footer-bar b { margin-left: 6px; font-weight: 800; color: var(--paper-ink); }
/* === END SLIDE 6 CSS === */

/* === BEGIN SLIDE 7 CSS === */
.slide-body.close-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.14fr) minmax(0, 0.86fr);
  gap: clamp(24px, 3.2vw, 52px);
  align-items: center;
}

.partner-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px 20px;
  align-items: center;
  margin-top: clamp(12px, 1.8vh, 20px);
  padding: clamp(15px, 2vh, 22px);
  border-radius: var(--radius-xl);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4);
}

.partner-avatar-wrap {
  width: clamp(128px, 16.5vh, 156px);
  height: clamp(128px, 16.5vh, 156px);
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.55);
}

.partner-portrait {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 18%;
  filter: none;
  opacity: 1;
}

.partner-meta-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-bright);
}

.partner-name-heading {
  margin-top: 4px;
  font-family: var(--font-display);
  font-size: clamp(23px, 1.9vw, 30px);
  font-weight: 700;
  line-height: 1.05;
  color: #FFFFFF;
}

.partner-role-sub {
  margin-top: 3px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-3);
}

.partner-quote {
  margin-top: 8px;
  padding-left: 13px;
  border-left: 3px solid var(--accent-bright);
  font-size: clamp(13.5px, min(0.96vw, 1.68vh), 15.5px);
  line-height: 1.44;
  color: var(--ink-2);
}

.partner-contact-pills {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.partner-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  text-decoration: none;
  padding: 8px 13px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: #FFFFFF;
}

.partner-pill .ico { color: var(--accent-bright); }

.partner-brand-signoff {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 2px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.partner-brand-logo {
  display: block;
  height: clamp(22px, 2.5vh, 28px);
  width: auto;
}

.partner-brand-address {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  text-align: right;
}

.concierge-col { display: flex; flex-direction: column; justify-content: center; }

.request {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 11px;
  overflow: hidden;
  padding: clamp(18px, 2.5vh, 28px) clamp(18px, 1.8vw, 28px);
  border-radius: var(--radius-xl);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 26px 56px rgba(0, 0, 0, 0.45);
}

.request::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-bright), rgba(240, 180, 86, 0.2));
}

.request .kicker { margin-bottom: 0; }

.request h3 {
  font-size: clamp(26px, 2.1vw, 34px);
  line-height: 1.05;
  color: #FFFFFF;
}

.request > p {
  font-size: clamp(14px, 0.96vw, 15.5px);
  line-height: 1.45;
  color: #D5DFEE;
}

.screen-request { display: flex; flex-direction: column; gap: 10px; }

.suggestions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}

.suggestions button {
  min-height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #FFFFFF;
  cursor: pointer;
}

.suggestions button:hover,
.suggestions button:focus-visible {
  background: var(--accent-bright);
  color: #0B101B;
  border-color: var(--accent-bright);
}

.picker-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.picker-col { display: flex; flex-direction: column; gap: 5px; }

.request label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.date-control { position: relative; display: block; }

.request input {
  width: 100%;
  height: 46px;
  margin: 0;
  padding: 6px 52px 6px 12px;
  border-radius: var(--radius-sm);
  background: var(--carbon);
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: #FFFFFF;
  color-scheme: dark;
}

.request input::-webkit-calendar-picker-indicator { opacity: 0; cursor: pointer; }

.date-control #open-date,
.date-control #open-time {
  position: absolute;
  top: 50%;
  right: 5px;
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.09);
  color: #FFFFFF;
  transform: translateY(-50%);
  cursor: pointer;
}

.date-control .date-icon { width: 18px; height: 18px; }

a#contact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 3px;
  padding: 14px 18px;
  border-radius: 12px;
  background: var(--accent-bright);
  box-shadow: 0 14px 28px rgba(240, 180, 86, 0.28);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  text-decoration: none;
  color: #0B101B;
}

a#contact:hover {
  background: #E2A23B;
  color: #0B101B;
}

.request small {
  display: block;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--ink-3);
}

.print-contact { display: none; }
/* === END SLIDE 7 CSS === */

/* ------------------------------------------------------------------ controls & desktop stage */
.controls {
  position: fixed;
  left: 50%;
  bottom: 1.2vh;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 6px;
  border-radius: 999px;
  background: rgba(11, 16, 27, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  color: #FFFFFF;
  transform: translateX(-50%);
  backdrop-filter: blur(12px);
}

.controls button, .controls > a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 5px 11px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #FFFFFF;
  text-decoration: none;
}

#counter {
  min-width: 46px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

#play, #download {
  padding-left: 12px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0 999px 999px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  white-space: nowrap;
  color: #E6ECF5;
}

@media screen and (min-width: 701px) {
  html, body { height: 100%; overflow: hidden; }

  body {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 64px;
    background: radial-gradient(circle at 50% 30%, #162138 0%, #060911 100%);
  }

  #deck, .deck {
    width: min(96vw, 1640px);
    height: min(91vh, 920px, calc(100dvh - 84px));
    margin: auto;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 36px 100px rgba(0, 0, 0, 0.65);
  }

  .slide { height: 100%; min-height: 0; }
}

@media screen and (max-width: 700px) {
  html, body { height: 100dvh; min-height: 0; overflow: hidden; }
  .deck, #deck { width: 100%; height: calc(100dvh - 76px); min-height: 0; overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain; border-radius: 0; }
  .slide { position: relative; inset: auto; display: none; width: 100%; height: auto; min-height: 100%; padding: 24px 18px; overflow: visible; }
  .slide.active, .slide.cover.active { display: flex; flex-direction: column; gap: 24px; }
  .slide.cover.active { padding: 24px 18px; }
  .slide-body { flex: none; min-height: auto; }
  .slide-body.two, .slide-body.website-grid, .slide-body.close-grid, .journey-head, .proof-head, .exec-head, .diagnostic-grid, .exec-cards-grid, .exec-footer-bar, .comparison, .partner-card, .picker-grid, .suggestions { display: flex; flex-direction: column; width: 100%; }
  .slide-head { align-items: flex-start; flex-direction: column; gap: 14px; }
  .header-brand { width: 100%; gap: 12px; }
  .header-meta { font-size: 11px; }
  .hero-copy { padding: 0; gap: 16px; }
  .cover-badge { width: min(290px,100%); padding: 7px 10px; }
  .proposal-route-panel { margin: 0 -18px -24px; padding: 28px 18px; gap: 16px; }
  .proposal-route-panel h2 { font-size: 28px; }
  .cover-route { min-height: 92px; padding: 16px 14px; gap: 12px; }
  .cover-route b { font-size: 19px; }
  .header-logo-pill { width: 142px; height: 66px; }
  .header-brand { align-items: center; }
  .header-wordmark b { font-size: 15px; }
  .header-wordmark small { font-size: 9px; }
  .profile-experience { padding: 22px; }
  .profile-experience strong { font-size: 84px; }
  .profile-experience span { font-size: 18px; }
  .journey-module { min-height: 170px; }
  .website .narrative-col h2 { font-size: 28px; }
  .website .narrative-col .lead { font-size: 15px; }
  .proposal-notes { margin-top: 20px; gap: 14px; }
  .proposal-figure { width: 100%; }
  .proposal-figure figcaption { flex-direction: column; align-items: flex-start; }
  .full-preview { font-size: 12px; }

  .cover-collab { max-width: 100%; gap: 8px; }
  .collab-label { font-size: 10px; letter-spacing: .08em; }
  h1 { font-size: 30px; }
  h2, .exec-head h2 { font-size: 28px; }
  .lead, .foundation .lead { font-size: 15px; line-height: 1.6; }
  .cover-foot { position: static; margin-top: 16px; }
  .prepared-by { font-size: 13px; }
  .prepared-by img { flex: none; width: 38px; height: 38px; }
  .prep-client { display: none; }
  .narrative-col, .concierge-col { width: 100%; }
  .diagnostic-grid, .exec-cards-grid { gap: 18px; }
  .case-frame { width: 100%; max-width: 100%; }
  .partner-card { align-items: flex-start; padding: 18px; }
  .partner-avatar-wrap { width: 128px; height: 128px; }
  .partner-contact-pills { width: 100%; gap: 10px; }
  .partner-pill { font-size: 12px; }
  .partner-brand-signoff { flex-direction: column; align-items: flex-start; }
  .partner-brand-address { text-align: left; line-height: 1.6; }
  .suggestions button { min-height: 46px; }
  .exec-footer-bar span + span { border-left: 0; border-top: 1px solid var(--line); }
  .slide-foot { margin-top: 12px; gap: 14px; }
  .controls { bottom: 8px; gap: 1px; padding: 4px; height: 60px; max-width: calc(100vw - 12px); }
  .controls button, .controls > a { min-height: 44px; padding: 7px 9px; text-decoration: none; }
  #prev, #next { min-width: 44px; }
  #counter { min-width: 38px; font-size: 11px; }
  #play, #download { font-size: 11px; letter-spacing: .04em; padding-left: 8px; }
}