/* ---------- Self-hosted fonts (SIL OFL 1.1, see fonts/OFL-*.txt) ---------- */
@font-face {
  font-family: "Fraunces";
  src: url("fonts/fraunces-latin.woff2") format("woff2");
  font-weight: 500 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("fonts/fraunces-italic-latin.woff2") format("woff2");
  font-weight: 500 700; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("fonts/inter-latin.woff2") format("woff2");
  font-weight: 400 600; font-style: normal; font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  --bg: #fbf8f5;
  --surface: #ffffff;
  --tint: #f5eee8;
  --text: #1e1a1d;
  --muted: #675d63;
  --rule: #ebe2db;
  --accent: #c63d57;
  --accent-ink: #ffffff;
  --accent-soft: #fbe5e9;
  --ink: #2a2230;
  --green: #2a7d52;
  --green-soft: #e3f3ea;
  --amber: #9a6514;
  --amber-soft: #fbf0dc;
  --red: #b5372f;
  --red-soft: #fbe4e2;
  --bubble-them: #efe7e2;
  --shadow: 0 1px 2px rgba(30, 26, 29, .05), 0 8px 24px rgba(30, 26, 29, .06);
  --display: "Fraunces", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151216; --surface: #1e1a20; --tint: #1b171d; --text: #efe9ec; --muted: #a99fa6;
    --rule: #332c35; --accent: #f06b82; --accent-ink: #1a0f13; --accent-soft: #3a1e26; --ink: #f3e9ee;
    --green: #5cc28e; --green-soft: #1b2e24; --amber: #e3a948; --amber-soft: #33291a;
    --red: #ef7a72; --red-soft: #3a1f1d; --bubble-them: #2b252e;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}
:root[data-theme="dark"] {
  --bg: #151216; --surface: #1e1a20; --tint: #1b171d; --text: #efe9ec; --muted: #a99fa6;
  --rule: #332c35; --accent: #f06b82; --accent-ink: #1a0f13; --accent-soft: #3a1e26; --ink: #f3e9ee;
  --green: #5cc28e; --green-soft: #1b2e24; --amber: #e3a948; --amber-soft: #33291a;
  --red: #ef7a72; --red-soft: #3a1f1d; --bubble-them: #2b252e;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--sans); font-size: 17px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--display); color: var(--ink); line-height: 1.2; margin: 0 0 .5em; font-weight: 600; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); letter-spacing: -.01em; }
h3, .h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
a { color: var(--accent); }
section, article { scroll-margin-top: 70px; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 780px; }
.center { text-align: center; }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin: 0 0 10px; }
.sub { color: var(--muted); font-size: 1.05rem; max-width: 660px; }
.section { padding: 96px 0; }
.section.tinted { background: var(--tint); }
.section-head { margin-bottom: 40px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; font-weight: 600; font-size: 15px;
  padding: 13px 22px; border-radius: 999px; border: 1.5px solid transparent;
  transition: transform .15s ease, border-color .15s ease;
  cursor: pointer; font-family: var(--sans);
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.ghost { border-color: var(--rule); color: var(--text); background: var(--surface); }
.btn.ghost:hover { border-color: var(--accent); }
.icon-btn { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--rule); background: var(--surface); color: var(--text); cursor: pointer; font-size: 16px; }
.icon-btn:hover { border-color: var(--accent); }

/* ---------- Nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule); }
.nav-inner { max-width: 1120px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; gap: 24px; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--display); font-weight: 700; font-size: 1.15rem; white-space: nowrap; }
.logo-mark { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: var(--accent-ink); font-family: var(--display); font-style: italic; font-size: 16px; font-weight: 700; }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500; padding: 8px 12px; border-radius: 8px; }
.nav-links a:hover { color: var(--text); background: var(--tint); }
.nav-actions { display: flex; gap: 8px; }
.menu-btn { display: none; }

/* ---------- Hero ---------- */
.hero { padding: 80px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .9fr; gap: 64px; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5.6vw, 4rem); line-height: 1.06; letter-spacing: -.02em; margin-bottom: 20px; }
.hero h1 em { color: var(--accent); font-style: italic; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 560px; margin-bottom: 30px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.phone { background: var(--surface); border: 1px solid var(--rule); border-radius: 28px; padding: 28px 20px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px; max-width: 380px; justify-self: center; width: 100%; }
.bubble { display: block; max-width: 82%; padding: 10px 14px; border-radius: 18px; font-size: 15px; line-height: 1.4; }
.bubble.you { align-self: flex-end; background: var(--accent); color: var(--accent-ink); border-bottom-right-radius: 6px; }
.bubble.them { align-self: flex-start; background: var(--bubble-them); color: var(--text); border-bottom-left-radius: 6px; }
.typing { align-self: flex-start; background: var(--bubble-them); padding: 12px 14px; border-radius: 18px; display: flex; gap: 4px; }
.typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); opacity: .5; animation: blink 1.2s infinite; }
.typing span:nth-child(2) { animation-delay: .2s; }
.typing span:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: .9; } }

/* ---------- Principles ---------- */
.principles { padding: 0 0 24px; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.principle { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 28px; }
.p-num { font-family: var(--display); color: var(--accent); font-weight: 700; font-size: 14px; }
.principle .h3 { margin-top: 8px; }
.principle p { color: var(--muted); margin: 0; font-size: 15.5px; }

/* ---------- Index ---------- */
.index-cols { display: grid; grid-template-columns: 5fr 4fr; gap: 32px; }
.index-label { font-family: var(--sans); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin-bottom: 12px; }
.lesson-index { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.lesson-index a { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; background: var(--surface); border: 1px solid var(--rule); color: var(--text); text-decoration: none; font-weight: 500; font-size: 15.5px; line-height: 1.35; transition: border-color .15s ease, transform .15s ease; }
.lesson-index a:hover { border-color: var(--accent); transform: translateX(3px); }
.lesson-index span { flex: 0 0 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 14px; }
.lesson-index.tools span { border-radius: 9px; }

/* ---------- Lessons ---------- */
.lesson { padding: 80px 0; border-top: 1px solid var(--rule); }
.lesson.alt { background: var(--tint); }
.lesson-grid { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 32px; }
.lesson-num { font-family: var(--display); font-size: 120px; line-height: .9; font-weight: 700; color: var(--accent); opacity: .22; }
.lesson-body { max-width: 760px; }
.lesson-body > p { font-size: 1.06rem; }

.ticks { list-style: none; padding: 0; margin: 0 0 1.4em; }
.ticks li { position: relative; padding-left: 30px; margin-bottom: 14px; }
.ticks li::before { content: "✓"; position: absolute; left: 0; top: 1px; color: var(--accent); font-weight: 700; }
.ticks.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 32px; }

.beats { counter-reset: beat; list-style: none; padding: 0; margin: 20px 0 28px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.beats li { counter-increment: beat; background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 16px; font-size: 15px; line-height: 1.5; position: relative; }
.beats li::before { content: counter(beat); display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 700; font-size: 13px; margin-bottom: 10px; }
.beats b { display: block; font-family: var(--display); font-size: 1.05rem; color: var(--ink); }

.boxes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
.box { border-radius: 14px; padding: 18px 20px; font-size: 15.5px; line-height: 1.55; }
.box strong { display: block; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 6px; }
.box.key { background: var(--surface); border: 1px solid var(--rule); }
.box.key strong { color: var(--muted); }
.box.try { background: var(--accent-soft); }
.box.try strong { color: var(--accent); }

.signals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 24px 0; }
.signal { border-radius: 14px; padding: 18px; font-size: 15px; }
.signal h3 { font-family: var(--sans); font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.signal p { margin: 0; }
.signal.green { background: var(--green-soft); } .signal.green h3 { color: var(--green); }
.signal.amber { background: var(--amber-soft); } .signal.amber h3 { color: var(--amber); }
.signal.red { background: var(--red-soft); } .signal.red h3 { color: var(--red); }

.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 24px 0; }
.pillar { background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 18px; }
.pillar h3 { font-size: 1.02rem; }
.pillar p { font-size: 14.5px; color: var(--muted); margin: 0; }
.m-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; font-size: 17px; margin-bottom: 12px; }

/* ---------- Quiz ---------- */
.quiz { display: flex; flex-direction: column; gap: 12px; }
.q-item { background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 18px 20px; }
.q-item fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.q-item legend { font-weight: 500; padding: 0; margin-bottom: 12px; line-height: 1.45; float: left; width: 100%; }
.q-opts { display: flex; gap: 8px; flex-wrap: wrap; clear: both; }
.q-opts label { position: relative; }
.q-opts input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.q-opts span { display: inline-block; padding: 8px 16px; border-radius: 999px; border: 1.5px solid var(--rule); font-size: 14px; font-weight: 500; cursor: pointer; user-select: none; background: var(--bg); }
.q-opts input:checked + span { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.q-opts input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.quiz-actions { display: flex; align-items: center; gap: 14px; margin-top: 8px; flex-wrap: wrap; }
.quiz-actions .hint { color: var(--muted); font-size: 14px; }
.quiz-result { margin-top: 24px; background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.meter { height: 10px; border-radius: 999px; background: var(--tint); overflow: hidden; margin: 14px 0 18px; }
.meter > div { height: 100%; border-radius: 999px; background: var(--accent); transition: width .5s ease; }
.tip-list { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-direction: column; gap: 10px; }
.tip-list li { background: var(--tint); border-radius: 12px; padding: 14px 16px; font-size: 15px; }
.tip-list b { color: var(--accent); }

/* ---------- Texting lab ---------- */
.lab-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: start; }
.lab-card { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 20px; }
.lab-card summary { list-style: none; cursor: pointer; display: flex; flex-direction: column; gap: 12px; }
.lab-card summary::-webkit-details-marker { display: none; }
.lab-label { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.lab-label.flat { color: var(--muted); }
.lab-label.better { color: var(--green); }
.lab-card .bubble { max-width: 100%; }
.bubble.flat { align-self: flex-start; background: var(--bubble-them); color: var(--muted); }
.bubble.better { align-self: flex-end; background: var(--accent); color: var(--accent-ink); }
.lab-btn { align-self: flex-start; font-size: 14px; font-weight: 600; padding: 8px 16px; border-radius: 999px; border: 1.5px solid var(--rule); color: var(--text); }
.lab-card summary:hover .lab-btn { border-color: var(--accent); }
.lab-card[open] .lab-btn { display: none; }
.lab-reveal { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--rule); }
.lab-why { font-size: 14px; color: var(--muted); margin: 0; }
.rules { margin-top: 48px; background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 32px; }
.rules .ticks { margin: 0; }

/* ---------- Habits ---------- */
.q-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.q-card { background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 20px; display: flex; flex-direction: column; }
.q-card h3 { font-size: 1.1rem; }
.q-n { font-family: var(--display); font-weight: 700; color: var(--accent); font-size: 14px; margin-bottom: 6px; }
.q-card p { font-size: 14.5px; color: var(--muted); margin-bottom: 10px; }
.q-card .build { margin-top: auto; margin-bottom: 0; color: var(--text); padding-top: 10px; border-top: 1px dashed var(--rule); }

/* ---------- Games ---------- */
.g-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.g-card { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; }
.g-card h3 { font-size: 1.15rem; }
.g-card p { color: var(--muted); font-size: 15px; }
.g-emoji { font-size: 28px; margin-bottom: 10px; }
.tag { margin-top: auto; align-self: flex-start; font-size: 12px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 4px 10px; border-radius: 999px; }

/* ---------- FAQ ---------- */
.faq { display: flex; flex-direction: column; gap: 10px; }
.faq details { background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 0 20px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 28px 18px 0; font-weight: 600; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 14px; font-size: 22px; color: var(--accent); font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); padding-bottom: 6px; }

/* ---------- Closing & footer ---------- */
.closing { padding: 96px 0; background: var(--ink); color: var(--bg); }
.closing h2 { color: var(--bg); }
.closing p { color: color-mix(in srgb, var(--bg) 78%, transparent); font-size: 1.1rem; margin-bottom: 28px; }
.footer { padding: 28px 0; border-top: 1px solid var(--rule); font-size: 14px; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--muted); }

/* ---------- Legal / simple pages ---------- */
.page { padding: 64px 0 96px; }
.page h1 { font-size: clamp(2rem, 5vw, 3rem); }
.page h2 { font-size: 1.5rem; margin-top: 48px; scroll-margin-top: 80px; }
.page p, .page li { color: var(--text); }
.page .updated { color: var(--muted); font-size: 14px; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .q-grid, .pillars, .beats { grid-template-columns: repeat(2, 1fr); }
  .lab-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .principle-grid, .signals, .g-grid, .index-cols { grid-template-columns: 1fr; }
  .boxes { grid-template-columns: 1fr; }
  .lesson-grid { grid-template-columns: 1fr; gap: 0; }
  .lesson-num { font-size: 64px; margin-bottom: 8px; }
  .ticks.two-col { grid-template-columns: 1fr; }
  .menu-btn { display: inline-block; }
  .nav-actions { margin-left: auto; }
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0; padding: 8px 16px 16px; background: var(--bg); border-bottom: 1px solid var(--rule); margin: 0; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px; font-size: 16px; }
}
@media (max-width: 560px) {
  .wrap, .nav-inner { padding-left: 16px; padding-right: 16px; }
  .section { padding: 64px 0; }
  .lesson { padding: 56px 0; }
  .hero { padding: 48px 0; }
  .q-grid, .pillars, .beats, .lab-grid { grid-template-columns: 1fr; }
  .rules { padding: 22px; }
  .cta-row .btn { width: 100%; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .typing span { animation: none; }
  .btn, .lesson-index a { transition: none; }
}