/* Design tokens — see ../../04_ui_design_direction.md for the reasoning.
   Defaulting to the Claude-brand-adjacent palette (my recommendation over ChatGPT's
   generic teal/coral) — swap these two blocks to switch direction, nothing else
   in this file needs to change. */

:root {
  /* Recommended default: warm, Claude-adjacent, distinct from generic SaaS teal/coral */
  --color-primary: #B5652C;      /* terracotta */
  --color-secondary: #7A8B6F;    /* sage */
  --color-bg: #FAF7F2;           /* warm off-white */
  --color-bg-card: #FFFFFF;
  --color-text: #2B2926;         /* charcoal, not pure black */
  --color-text-muted: #6B6863;
  --color-border: #E8E1D6;

  /* ChatGPT's alternative — uncomment this block and comment the one above to switch:
  --color-primary: #2A9D8F;
  --color-secondary: #E76F51;
  --color-bg: #F4F4F4;
  --color-bg-card: #FFFFFF;
  --color-text: #333333;
  --color-text-muted: #6B6B6B;
  --color-border: #E0E0E0;
  */

  --font-display: 'Playfair Display', Georgia, serif;   /* H1 only — see doc 04 caution on overuse */
  --font-body: 'Lato', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius: 10px;
  --max-w: 1100px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

nav.topnav {
  position: sticky; top: 0; z-index: 10;
  background: var(--color-bg); border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
}
nav.topnav .container { display: flex; justify-content: space-between; align-items: center; }
nav.topnav .brand { font-family: var(--font-display); font-size: 20px; font-weight: 700; color: var(--color-text); text-decoration: none; }
nav.topnav a.navlink { color: var(--color-text-muted); text-decoration: none; margin-left: 24px; font-size: 14px; }
nav.topnav a.navlink:hover { color: var(--color-text); }

.hero { padding: 96px 0 64px; text-align: center; }
.hero h1 { font-family: var(--font-display); font-size: 48px; margin: 0 0 16px; line-height: 1.15; }
.hero p.sub { font-size: 19px; color: var(--color-text-muted); max-width: 640px; margin: 0 auto 32px; }

/* ── Full-bleed engraved hero ─────────────────────────────────────────── */
.hero-img {
  position: relative;
  min-height: 640px;
  background-image: url('/static/img/hero.png');
  background-size: cover;
  background-position: center 70%;
  display: flex; align-items: flex-start;
}
.hero-img__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(43,25,12,.35) 0%, rgba(43,25,12,.05) 40%, rgba(43,25,12,.55) 100%);
}
.hero-img__content {
  position: relative; z-index: 1;
  padding-top: 72px; text-align: center; width: 100%;
}
.hero-eyebrow {
  font-size: 13px; font-weight: 700; letter-spacing: .28em; text-transform: uppercase;
  color: #F6E7D3; margin: 0 0 14px; text-shadow: 0 1px 8px rgba(43,25,12,.6);
}
.hero-img__content h1 {
  font-family: var(--font-display); font-size: 52px; line-height: 1.12;
  color: #FBF3E6; margin: 0 0 18px;
  text-shadow: 0 2px 18px rgba(43,25,12,.65);
}
.hero-img__content .sub {
  font-size: 18px; color: #F3E5D0; max-width: 660px; margin: 0 auto 30px;
  text-shadow: 0 1px 10px rgba(43,25,12,.7);
}
@media (max-width: 720px) {
  .hero-img { min-height: 520px; }
  .hero-img__content h1 { font-size: 34px; }
}

/* ── The Code section ─────────────────────────────────────────────────── */
.section--code { background: #2B1C0F; }
.section--code h2 { color: #F6E7D3; }
.card--code { background: #3A2817; border-color: #55402A; }
.card--code h3 { color: #F6E7D3; }
.card--code p { color: #CBB79E; }
.code-num {
  font-family: var(--font-display); font-size: 30px; color: var(--color-primary);
  margin-bottom: 6px;
}

/* ── Teacher section + footer ─────────────────────────────────────────── */
.section--teacher { background: var(--color-bg-card); border-top: 1px solid var(--color-border); }
.teacher-copy { max-width: 720px; font-size: 17px; color: var(--color-text); line-height: 1.75; }
.site-footer {
  background: #2B1C0F; color: #A98F6F; padding: 28px 0; font-size: 13px;
}

.btn {
  display: inline-block; padding: 14px 28px; border-radius: 999px;
  background: var(--color-primary); color: #fff; text-decoration: none;
  font-weight: 600; font-size: 15px; border: none; cursor: pointer;
  transition: opacity .15s;
}
.btn:hover { opacity: .88; }
.btn.secondary { background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-primary); }

.card-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px; margin: 40px 0;
}
.card {
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 24px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { color: var(--color-text-muted); font-size: 14px; margin: 0 0 12px; }
.chip {
  display: inline-block; font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .04em; color: var(--color-secondary); background: color-mix(in srgb, var(--color-secondary) 15%, white);
  padding: 4px 10px; border-radius: 999px; margin-bottom: 10px;
}

form.stack { max-width: 440px; margin: 40px auto; display: flex; flex-direction: column; gap: 14px; }
form.stack input, form.stack textarea {
  padding: 12px 14px; border: 1.5px solid var(--color-border); border-radius: 8px;
  font-family: var(--font-body); font-size: 15px; background: var(--color-bg-card);
}
form.stack label { font-size: 13px; font-weight: 600; color: var(--color-text-muted); margin-bottom: -8px; }

.flash { background: #FDEEEA; border: 1px solid #E8B4A4; color: #8A3B22; padding: 12px 16px; border-radius: 8px; margin: 16px auto; max-width: 440px; font-size: 14px; }

.section { padding: 48px 0; }
.section h2 { font-family: var(--font-display); font-size: 30px; margin-bottom: 24px; }

.module-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border: 1px solid var(--color-border); border-radius: var(--radius);
  margin-bottom: 10px; background: var(--color-bg-card);
}
.module-row.done { border-color: var(--color-secondary); }
.module-row .num { font-family: var(--font-display); font-size: 22px; color: var(--color-text-muted); width: 40px; }

/* ── Late overrides: must come after base .card (file-order specificity) ── */
.section--code .card { background: #3A2817; border-color: #55402A; }
.section--code .card h3 { color: #F6E7D3; }
.section--code .card p { color: #CBB79E; }
.hero-img__overlay {
  background: linear-gradient(180deg, rgba(43,25,12,.40) 0%, rgba(43,25,12,.30) 45%, rgba(43,25,12,.60) 100%);
}

/* ── Lesson pages ─────────────────────────────────────────────────────── */
.lesson { max-width: 760px; }
.lesson-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--color-primary); margin-bottom: 4px; }
.lesson-title { font-family: var(--font-display); font-size: 38px; margin: 0 0 8px; }
.lesson-summary { color: var(--color-text-muted); font-size: 17px; margin: 0 0 20px; }
.lesson-rule { border: none; border-top: 1px solid var(--color-border); margin: 0 0 28px; }
.lesson-body h2 { font-family: var(--font-display); font-size: 26px; margin: 36px 0 12px; }
.lesson-body h3 { font-size: 18px; margin: 26px 0 8px; }
.lesson-body p, .lesson-body li { font-size: 16.5px; line-height: 1.75; }
.lesson-body code { background: #F0E9DE; padding: 2px 7px; border-radius: 5px; font-size: 14.5px; }
.lesson-actions { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--color-border); display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.section--livehelp { background: var(--color-bg-card); border-top: 1px solid var(--color-border); }

/* ══ POSTER THEME (2026-08-28 — Henry's cartoon reference) ══════════════
   Palette from the reference poster: warm charcoal, poster orange, cream.
   These late rules deliberately override the earlier engraving theme. */
:root {
  --poster-orange: #D4622A;
  --poster-dark: #221A12;
  --poster-dark-2: #2E241A;
  --poster-cream: #F2E9DC;
  --color-primary: #D4622A;   /* retint buttons/links to poster orange */
}
.poster-h1 {
  font-family: 'Anton', var(--font-display); font-weight: 400;
  font-size: 64px; line-height: 1.04; text-transform: uppercase;
  letter-spacing: .01em; color: #FFFFFF; margin: 0 0 10px;
  text-shadow: 0 3px 24px rgba(0,0,0,.55);
}
.poster-sub {
  font-family: 'Anton', var(--font-display); font-weight: 400;
  font-size: 26px; text-transform: uppercase; letter-spacing: .02em;
  color: var(--poster-orange); margin: 0 0 18px;
  text-shadow: 0 2px 14px rgba(0,0,0,.5);
}
.poster-h2 {
  font-family: 'Anton', var(--font-display); font-weight: 400;
  font-size: 34px; text-transform: uppercase; letter-spacing: .01em;
  color: var(--poster-cream); margin-bottom: 20px;
}
.poster-h2--orange { color: var(--poster-orange); }
.poster-h2--dark { color: var(--poster-dark); }
.poster-h2 .orange { color: var(--poster-orange); }

/* Cartoon hero */
.hero-img--cartoon {
  background-image: url('/static/img/hero_cartoon.png');
  background-position: center right;
  min-height: 620px;
  display: flex; align-items: center;
}
.hero-img--cartoon .hero-img__overlay { display: none; }
.hero-img__content-left {
  position: relative; z-index: 1; width: 100%;
  max-width: var(--max-w); text-align: left;
}
.hero-img__content-left .sub-plain {
  color: #EBDECB; font-size: 17px; max-width: 460px; margin: 0 0 26px;
  text-shadow: 0 1px 10px rgba(0,0,0,.6);
}
@media (max-width: 900px) {
  .hero-img--cartoon { background-position: 75% center; }
  .hero-img--cartoon::before {
    content: ''; position: absolute; inset: 0; background: rgba(24,17,10,.55);
  }
  .poster-h1 { font-size: 42px; }
}

/* Contrast (toy vs force-multiplier) section */
.section--contrast { background: var(--poster-dark); }
.contrast-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px,1fr)); gap: 36px; }
.xlist, .checklist { list-style: none; padding: 0; margin: 0 0 18px; }
.xlist li, .checklist li {
  position: relative; padding: 10px 0 10px 40px; font-size: 16.5px;
  color: #D8CCBA; border-bottom: 1px solid rgba(242,233,220,.08);
}
.xlist li::before {
  content: '✕'; position: absolute; left: 4px; top: 9px;
  color: #C25438; font-weight: 700; font-size: 17px;
  border: 2px solid #C25438; border-radius: 50%; width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center; font-size: 12px;
}
.checklist li::before {
  content: '✓'; position: absolute; left: 4px; top: 9px;
  color: #7FA35C; font-weight: 700;
  border: 2px solid #7FA35C; border-radius: 50%; width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center; font-size: 13px;
}
.torn-note {
  display: inline-block; background: var(--poster-cream); color: var(--poster-dark);
  font-family: 'Anton', var(--font-display); text-transform: uppercase;
  font-size: 16px; letter-spacing: .02em; padding: 10px 18px;
  transform: rotate(-1.2deg); box-shadow: 0 3px 12px rgba(0,0,0,.35);
}
.torn-note--win { transform: rotate(1deg); background: #E9DFC8; }

/* CTA banner */
.cta-banner {
  background: var(--poster-orange); padding: 26px 0;
}
.cta-banner .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.cta-banner__text {
  font-family: 'Anton', var(--font-display); text-transform: uppercase;
  color: #fff; font-size: 26px; letter-spacing: .02em;
}
.btn--light { background: #fff; color: var(--poster-orange); }

/* Retint dark sections to poster palette */
.section--code { background: var(--poster-dark-2); }
.section--code .card { background: #3B2E20; border-color: #55432E; }
.site-footer { background: var(--poster-dark); }

/* Poster theme: Anton IS the display font now (Playfair is no longer loaded —
   everything that referenced --font-display was silently falling back to Georgia). */
:root { --font-display: 'Anton', 'Arial Narrow', sans-serif; }
.section h2 { text-transform: uppercase; letter-spacing: .01em; }
nav.topnav .brand { font-family: var(--font-display); font-weight: 400; letter-spacing: .04em; text-transform: uppercase; }
.lesson-title, .lesson-body h2 { text-transform: none; letter-spacing: 0; }