/*
 * AI for Business Professionals - workshop site styles.
 * The workshop site is the QR-code destination during the live class.
 * It reuses the Pros palette but is its own micro-site.
 */

:root {
  --ivory: #F5F1EA;
  --ivory-deep: #EDE7DA;
  --navy: #0E2340;
  --navy-soft: #1E3A5F;
  --slate: #4A5766;
  --slate-soft: #6B7785;
  --teal: #17A9A3;
  --teal-dark: #107A76;
  --coral: #EF6F4A;
  --coral-dark: #C9532E;
  --lavender: #E4E7F2;
  --ink: #0B1628;
  --shadow: rgba(14, 35, 64, 0.10);
  --shadow-deep: rgba(14, 35, 64, 0.22);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", "Helvetica Neue", system-ui, sans-serif;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Inter", system-ui, sans-serif;
  color: var(--navy);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-top: 2.5rem; }
h3 { font-size: 1.2rem; margin-top: 1.8rem; }

p { margin: 0.7rem 0 1.1rem; }

a { color: var(--teal-dark); text-decoration: none; border-bottom: 2px solid rgba(23,169,163,0.35); }
a:hover { color: var(--navy); border-bottom-color: var(--teal); }

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav {
  padding: 1.2rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}

.nav-brand {
  font-family: "Inter", system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--navy);
  text-decoration: none;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.nav-brand::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  background: var(--teal);
  border-radius: 3px;
  transform: rotate(45deg);
}

.nav-links { display: flex; gap: 1.4rem; font-size: 0.95rem; }
.nav-links a { color: var(--navy); border: none; font-weight: 500; }
.nav-links a:hover { color: var(--teal); }

/* Hero */
.hero {
  padding: 5rem 1.5rem 3rem;
  text-align: center;
}
.hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  color: var(--teal-dark);
  font-weight: 700;
}
.hero h1 { max-width: 18ch; margin: 1rem auto 0.6rem; }
.hero .sub { color: var(--slate); font-size: 1.15rem; max-width: 38ch; margin: 0 auto; }

/* Activity card grid */
.activities {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
  padding: 3rem 1.5rem 5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.activity-card {
  display: block;
  background: white;
  border: 1px solid var(--ivory-deep);
  border-radius: 16px;
  padding: 1.6rem 1.5rem 1.8rem;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--ivory-deep);
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}
.activity-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px var(--shadow);
  border-color: var(--teal);
  color: inherit;
}
.activity-card .badge {
  display: inline-block;
  background: var(--lavender);
  color: var(--navy);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.activity-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.3rem;
}
.activity-card p {
  margin: 0;
  color: var(--slate);
  font-size: 0.95rem;
  line-height: 1.45;
}

/* Page body */
.page-body {
  padding: 2rem 0 5rem;
}
.page-body .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.78rem;
  color: var(--teal-dark);
  font-weight: 700;
}

.tbd-card {
  background: var(--lavender);
  border-left: 5px solid var(--teal);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  margin: 2rem 0;
  font-size: 0.95rem;
  color: var(--navy);
}
.tbd-card strong { color: var(--coral-dark); letter-spacing: 0.1em; }

.steplist {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}
.steplist li {
  counter-increment: step;
  position: relative;
  padding: 0.4rem 0 0.4rem 3.2rem;
  margin-bottom: 0.6rem;
}
.steplist li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 0.15rem;
  width: 2.2rem; height: 2.2rem;
  background: var(--navy);
  color: var(--ivory);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.foot {
  border-top: 1px solid var(--ivory-deep);
  padding: 2rem 1.5rem 3rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--slate-soft);
}