/* Jackson Blank — colors and type taken from the Creative Partner deck */
:root {
  --bg: #070A0E;      /* slide background */
  --card: #0F1720;    /* card fill */
  --line: #304454;    /* rules and card borders */
  --ink: #F7F5F0;     /* headlines */
  --body: #CAC9C4;    /* body copy */
  --muted: #91918F;   /* footnotes, slide numbers */
  --blue: #89CFF0;    /* baby-blue accent */

  --display: "Aptos Display", Aptos, "Segoe UI Variable Display", "Segoe UI", system-ui,
             -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --text: Aptos, "Segoe UI Variable Text", "Segoe UI", system-ui,
          -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;

  --pad-x: clamp(1.25rem, 6vw, 6rem);   /* the deck's 0.8in side margin */
  --pad-y: clamp(4.5rem, 11vh, 8.5rem);
}

* { box-sizing: border-box; }

html {
  background: var(--bg);
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--text);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--blue); color: var(--bg); }

a { color: inherit; }
a:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; border-radius: 6px; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem var(--pad-x);
  background: rgba(7, 10, 14, 0.86);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(48, 68, 84, 0.55);
}
.brand {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--blue);
  text-decoration: none;
}
.pill {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--ink);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: border-color 0.2s, color 0.2s;
}
.pill:hover { border-color: var(--blue); color: var(--blue); }

/* ---------- slides ---------- */
.slide {
  position: relative;
  padding: var(--pad-y) var(--pad-x);
  border-top: 1px solid rgba(48, 68, 84, 0.45);
}
.slide > * { max-width: 76rem; }

h1, h2, h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  color: var(--ink);
}
h1, .big {
  text-transform: uppercase;
  font-size: clamp(2.6rem, 6.2vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.012em;
}
h2 {
  font-size: clamp(2rem, 4.2vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  max-width: 22ch;
}
h3 { font-size: clamp(1.2rem, 1.7vw, 1.45rem); line-height: 1.2; }

.eyebrow, .tag, .motto, .tags, .stat, .brand-lg {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
}
.eyebrow {
  margin: 0 0 1.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--blue);
}
.accent {
  margin: 1.6rem 0 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.1vw, 1.9rem);
  line-height: 1.25;
  color: var(--blue);
  max-width: 34ch;
}
.body {
  margin: 1.6rem 0 0;
  font-size: clamp(1.05rem, 1.35vw, 1.3rem);
  max-width: 62ch;
}
.rule {
  height: 1px;
  margin: clamp(2.5rem, 6vh, 3.75rem) 0;
  border: 0;
  background: var(--line);
}
.num {
  position: absolute;
  right: var(--pad-x);
  bottom: clamp(1.25rem, 3vh, 2rem);
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---------- 01 hero ---------- */
.hero {
  min-height: calc(100svh - 3.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-top: 0;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  align-items: center;
}
.hero-accent { margin: 0; font-size: clamp(1.35rem, 2.4vw, 2.15rem); }
.hero .body { margin-top: 0; }
.motto {
  margin: 2.2rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

/* ---------- 02 problem ---------- */
.questions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.3rem 3rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.questions li {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.1rem, 1.6vw, 1.4rem);
  line-height: 1.3;
  color: var(--ink);
}

/* ---------- 03 role ---------- */
.pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 3rem;
  margin-top: clamp(2.5rem, 6vh, 3.5rem);
}
.pair p, .strong {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.15rem, 1.7vw, 1.45rem);
  line-height: 1.3;
  color: var(--ink);
}
.tags {
  margin: 0;
  font-size: clamp(0.85rem, 1.2vw, 1.05rem);
  letter-spacing: 0.14em;
  color: var(--blue);
}
.tags span { margin: 0 0.45em; }

/* ---------- cards (04, 06) ---------- */
.cards {
  display: grid;
  gap: 1rem;
  margin-top: clamp(2.5rem, 6vh, 3.75rem);
}
.cards-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  padding: 1.6rem 1.5rem 1.75rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.card .tag {
  margin: 0 0 1.1rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--blue);
}
.card h3 { margin-bottom: 0.7rem; }
.card p:last-child { margin: 0; font-size: 1rem; line-height: 1.5; }
.closer { margin-top: clamp(2.5rem, 6vh, 3.5rem); max-width: 52ch; font-size: clamp(1.1rem, 1.6vw, 1.4rem); }

/* ---------- 05 proof ---------- */
.case { margin-top: clamp(2.5rem, 6vh, 3.5rem); margin-bottom: 1.2rem; }
.before-after {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 1.5rem 3.5rem;
}
.before-after h3 { margin-bottom: 0.6rem; }
.before-after p { margin: 0; font-size: clamp(1.02rem, 1.3vw, 1.2rem); }
.result { margin: 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4rem 1rem; }
.stat {
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--blue);
}
.stat-sm { font-size: clamp(1.5rem, 2.6vw, 2.1rem); letter-spacing: 0.01em; }
.stat-label {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  color: var(--ink);
}
.stat-label.muted { font-family: var(--text); font-weight: 400; color: var(--body); max-width: 30ch; }
.footnote { margin: 1rem 0 0; font-size: 0.95rem; color: var(--muted); }

/* ---------- 07 experience ---------- */
.experience {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.5rem 3.5rem;
  align-items: center;
}

/* ---------- 08 contact ---------- */
.contact .big { max-width: none; }
.signoff {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem 3rem;
}
.signoff p { margin: 0; }
.brand-lg { font-size: 0.95rem; letter-spacing: 0.16em; color: var(--blue); }
.role { margin-top: 0.3rem !important; color: var(--ink); }
.button {
  display: inline-block;
  padding: 0.95rem 1.5rem;
  border-radius: 999px;
  background: var(--blue);
  color: var(--bg);
  font-family: var(--display);
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.2s;
}
.button:hover { background: #a9dcf4; }
.contact-note { margin-top: 0.6rem !important; font-size: 0.9rem; color: var(--muted); }

.footer {
  padding: 2rem var(--pad-x);
  border-top: 1px solid rgba(48, 68, 84, 0.45);
  font-size: 0.85rem;
  color: var(--muted);
}
.footer p { margin: 0; }

/* ---------- smaller screens ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .cards-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards-3 { grid-template-columns: 1fr; }
  .experience { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .questions, .pair, .before-after, .cards-4 { grid-template-columns: 1fr; }
  .num { display: none; }
  .tags span { margin: 0 0.25em; }
}