:root {
  --gold: #C9A84C;
  --gold-deep: #A8873A;
  --charcoal: #2C2C2C;
  --ink: #1A1A1A;
  --cream: #F5EFDC;
  --paper: #FBF8F0;
  --muted: #5E5A52;
  --line: #E4DCC6;
  --serif: "Crimson Pro", Georgia, "Times New Roman", serif;
  --sans: "Work Sans", Arial, Helvetica, sans-serif;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--charcoal);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Piano key rule, used as a section divider */
.keys-rule {
  height: 14px;
  background:
    repeating-linear-gradient(90deg, var(--charcoal) 0 10px, transparent 10px 22px, var(--charcoal) 22px 32px, transparent 32px 56px),
    var(--paper);
  opacity: .9;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(26, 26, 26, .94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(201, 168, 76, .25);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.wordmark { font-family: var(--serif); font-size: 26px; line-height: 1; color: #fff; letter-spacing: .3px; }
.wordmark span { color: var(--gold); }
.nav { display: flex; gap: 26px; }
.nav a { color: #d9d4c7; text-decoration: none; font-size: 14px; letter-spacing: .6px; text-transform: uppercase; }
.nav a:hover { color: var(--gold); }

/* Hero */
.hero {
  position: relative;
  color: #fff;
  background: var(--ink) url("assets/hero-keys.jpg") center bottom / cover no-repeat;
  min-height: 86vh;
  display: flex; align-items: center;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,10,10,.55) 0%, rgba(10,10,10,.35) 55%, rgba(10,10,10,.75) 100%);
}
.hero .wrap { position: relative; padding-top: 72px; padding-bottom: 96px; }
.eyebrow {
  font-size: 13px; letter-spacing: 3px; text-transform: uppercase; color: var(--gold);
  margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(48px, 8vw, 104px); line-height: 1; margin: 0 0 22px;
}
.hero h1 span { color: var(--gold); }
.hero .tagline { font-family: var(--serif); font-size: clamp(22px, 3vw, 30px); color: var(--cream); margin: 0 0 22px; }
.hero .lede { max-width: 560px; font-size: 18px; color: #e8e3d6; margin: 0 0 34px; }
.emoji-keys { font-size: 26px; letter-spacing: 10px; margin: 0 0 28px; }

.btn {
  display: inline-block; text-decoration: none; font-weight: 500; font-size: 15px;
  padding: 14px 26px; border-radius: 2px; letter-spacing: .4px;
  transition: background .2s, color .2s, border-color .2s;
}
.btn-gold { background: var(--gold); color: var(--ink); }
.btn-gold:hover { background: #d8b95c; }
.btn-ghost { border: 1px solid rgba(245,239,220,.6); color: var(--cream); margin-left: 10px; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* Sections */
section { padding: 96px 0; }
.section-head { max-width: 680px; margin-bottom: 52px; }
.section-head .eyebrow { color: var(--gold-deep); }
h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(34px, 4.5vw, 52px); line-height: 1.1; margin: 0 0 16px; color: var(--ink); }
h3 { font-family: var(--serif); font-weight: 600; font-size: 26px; line-height: 1.2; margin: 0 0 10px; color: var(--ink); }
p { margin: 0 0 16px; }
.muted { color: var(--muted); }

/* About */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: start; }
.pullquote {
  font-family: var(--serif); font-size: 30px; line-height: 1.3; color: var(--ink);
  border-left: 3px solid var(--gold); padding: 6px 0 6px 26px; margin: 0;
}

/* Three keys */
.three-keys { background: var(--cream); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--paper); border: 1px solid var(--line); padding: 34px 30px;
  position: relative;
}
.card::before { content: ""; position: absolute; top: 0; left: 0; width: 44px; height: 3px; background: var(--gold); }
.card .icon { font-size: 30px; margin-bottom: 14px; }
.card p { color: var(--muted); margin: 0; }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line); }
.pillar { padding: 34px 34px 34px 0; border-bottom: 1px solid var(--line); }
.pillar:nth-child(odd) { border-right: 1px solid var(--line); }
.pillar:nth-child(even) { padding-left: 34px; }
.pillar .num { font-family: var(--serif); color: var(--gold-deep); font-size: 18px; margin-bottom: 6px; }
.pillar p { color: var(--muted); margin: 0; }

/* Keys to Code */
.ktc { background: var(--ink); color: #e8e3d6; }
.ktc h2, .ktc h3 { color: #fff; }
.ktc .section-head .eyebrow { color: var(--gold); }
.ktc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(201,168,76,.3); border: 1px solid rgba(201,168,76,.3); }
.ktc-item { background: var(--ink); padding: 36px 30px; }
.ktc-item .label { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--gold); margin-bottom: 12px; }
.ktc-item p { margin: 0; color: #cfc9ba; }
.ktc-cta { margin-top: 44px; display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; }
.ktc-cta .line { font-family: var(--serif); font-size: 30px; color: #fff; }
.hashtag { font-size: 15px; letter-spacing: 1px; color: var(--gold); }

/* How it works */
.how-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px 48px; }
.how-list li { padding-left: 34px; position: relative; }
.how-list li::before { content: "🔑"; position: absolute; left: 0; top: 2px; font-size: 18px; }
.how-list strong { display: block; font-family: var(--serif); font-size: 22px; font-weight: 600; color: var(--ink); margin-bottom: 4px; }
.how-list span { color: var(--muted); }

/* Coalition */
.coalition { background: var(--cream); }
.coalition-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.coalition-grid .card { display: flex; flex-direction: column; }
.coalition-grid .card .tag { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--gold-deep); margin-bottom: 10px; }
.coalition-grid .card a.more { margin-top: 18px; font-weight: 500; color: var(--ink); text-decoration-color: var(--gold); text-underline-offset: 4px; }

/* Follow */
.follow { text-align: center; }
.follow .section-head { margin: 0 auto 30px; }

/* Footer */
.site-footer { background: var(--ink); color: #a9a397; padding: 46px 0; font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 18px; }
.site-footer .wordmark { font-size: 22px; }
.site-footer a { color: #d9d4c7; text-decoration: none; }
.site-footer a:hover { color: var(--gold); }
.footer-links { display: flex; gap: 22px; }

/* Responsive */
@media (max-width: 900px) {
  .nav { display: none; }
  .about-grid, .cards, .ktc-grid, .coalition-grid { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .pillar, .pillar:nth-child(even) { padding: 28px 0; border-right: none; }
  .pillar:nth-child(odd) { border-right: none; }
  .how-list { grid-template-columns: 1fr; }
  section { padding: 72px 0; }
  .about-grid { gap: 36px; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 16px; }
  .btn-ghost { margin: 12px 0 0; }
  .hero { min-height: 78vh; }
}