/* ============================================================
   FIELD GUIDE — design tokens v3
   Professional look: deep emerald + coral + gold accents.
   Adds: about-me section, free-preview badges, locked-content
   states, FRQ reveal-answer styling.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,700&family=IBM+Plex+Mono:wght@400;500&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --bg:         #F6F7F4;
  --bg-line:    #E4E7DE;
  --card:       #FFFFFF;
  --ink:        #14261D;
  --ink-soft:   #55665B;

  --emerald:      #0E6E52;
  --emerald-dark: #0A5240;
  --emerald-tint: #E4F2EB;

  --coral:      #FF6B4A;
  --coral-dark: #E14F30;
  --coral-tint: #FFE9E2;

  --gold:       #F2AE3A;
  --gold-tint:  #FCEFD8;

  --indigo:     #3F5AA6;
  --indigo-tint:#E7EBF7;

  --plum:       #8A4F9E;
  --plum-tint:  #F1E6F5;

  --serif: 'Fraunces', serif;
  --mono:  'IBM Plex Mono', monospace;
  --sans:  'Inter', sans-serif;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 16px 34px -18px rgba(20,38,29,0.28);
  --shadow-sm: 0 6px 16px -10px rgba(20,38,29,0.25);
}

*{ box-sizing:border-box; }

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

a{ color:inherit; }
img,svg{ max-width:100%; display:block; }

.wrap{ max-width: 1120px; margin:0 auto; padding: 0 24px; }

/* ---------- Trust bar ---------- */
.trust-bar{
  display:flex; align-items:center; justify-content:center; flex-wrap:wrap;
  gap: 10px 16px;
  font-size: 0.86rem;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--bg-line);
  border-radius: 999px;
  padding: 12px 22px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}
.trust-bar strong{ color: var(--emerald-dark); font-family: var(--serif); }
.trust-divider{ color: var(--bg-line); }
@media (max-width:640px){ .trust-bar{ font-size: 0.78rem; padding: 10px 16px; } }

/* ---------- Nav ---------- */
.nav{ display:flex; align-items:center; justify-content:space-between; padding: 24px 0; }
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width:38px; height:38px; border-radius:9px;
  background: linear-gradient(135deg, var(--emerald), var(--emerald-dark));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-family:var(--serif); font-weight:700; font-size:1.15rem;
  box-shadow: var(--shadow-sm);
}
.brand-text{ font-family: var(--serif); font-weight:700; font-size: 1.3rem; line-height:1.1; }
.brand-text small{
  display:block; font-family: var(--mono); font-size: 0.62rem;
  letter-spacing: 0.13em; color: var(--ink-soft); text-transform: uppercase; margin-top:2px;
}

.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--sans); font-weight:600; font-size: 0.92rem;
  text-decoration:none; padding: 12px 22px; border-radius: 999px;
  border: 1.5px solid var(--ink); cursor:pointer; background: transparent; color:var(--ink);
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn-solid{ background: linear-gradient(135deg, var(--emerald), var(--emerald-dark)); border-color: transparent; color: #fff; box-shadow: var(--shadow-sm); }
.btn-solid:hover{ box-shadow: 0 12px 22px -10px rgba(14,110,82,0.55); }
.btn-coral{ background: linear-gradient(135deg, var(--coral), var(--coral-dark)); border-color: transparent; color:#fff; box-shadow: 0 10px 20px -10px rgba(255,107,74,0.55); }
.btn-ghost{ border-color: var(--bg-line); color: var(--ink-soft); }
.btn-block{ width:100%; justify-content:center; }
.btn-disabled{ border-color: var(--bg-line); color: #A9B3A5; cursor:not-allowed; background:#EEF0EA; }
.btn-disabled:hover{ transform:none; }
.btn-sm{ padding:8px 16px; font-size:0.8rem; }

/* ---------- Hero ---------- */
.hero{
  position:relative; border-radius: 24px; overflow:hidden;
  background: linear-gradient(160deg, var(--emerald-dark) 0%, var(--emerald) 55%, #147a5c 100%);
  padding: 64px 48px; margin: 8px 0 56px;
  display:grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items:center; color: #fff;
}
.hero::after{ content:""; position:absolute; inset:0; background: radial-gradient(circle at 85% 20%, rgba(242,174,58,0.25), transparent 45%); pointer-events:none; }
@media (max-width:860px){ .hero{ grid-template-columns:1fr; padding:44px 26px; } }

.eyebrow{
  font-family: var(--mono); font-size: 0.72rem; letter-spacing:0.14em; text-transform:uppercase;
  color: var(--gold); background: rgba(255,255,255,0.12); display:inline-block; padding: 6px 12px;
  border-radius: 999px; margin-bottom:20px;
}
.eyebrow-light{ background: var(--emerald-tint); color: var(--emerald-dark); }

h1{ font-family: var(--serif); font-size: clamp(2.2rem, 4.2vw, 3.3rem); line-height:1.08; letter-spacing:-0.01em; margin: 0 0 18px; color:#fff; }
h1 em{ font-style:normal; color: var(--gold); }

.tagline{ font-family: var(--serif); font-style: italic; font-size: 1.5rem; color: var(--gold); margin: 0 0 20px; letter-spacing: 0.01em; }
.lede{ font-size: 1.08rem; color: rgba(255,255,255,0.85); max-width: 46ch; margin: 0 0 30px; position:relative; }
.cta-row{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:34px; position:relative; }
.hero .btn-ghost{ border-color: rgba(255,255,255,0.5); color:#fff; }

.field-marks{ list-style:none; margin:0; padding:0; display:grid; gap:12px; border-top: 1px solid rgba(255,255,255,0.18); padding-top: 20px; position:relative; }
.field-marks li{ display:grid; grid-template-columns: 120px 1fr; gap: 14px; font-size:0.92rem; color: rgba(255,255,255,0.9); }
.field-marks .fm-label{ font-family: var(--mono); font-size:0.66rem; letter-spacing:0.08em; text-transform:uppercase; color: var(--gold); padding-top:2px; }

.stack{ position:relative; height: 320px; }
.hero .specimen{ position:absolute; width: 84%; color: var(--ink); }
.stack .specimen:nth-child(1){ top:0; left:2%; transform: rotate(-5deg); z-index:1; }
.stack .specimen:nth-child(2){ top:44px; left:14%; transform: rotate(3deg); z-index:2; }
.stack .specimen:nth-child(3){ top:92px; left:4%; transform: rotate(-1.5deg); z-index:3; }

/* ---------- About Me ---------- */
.about{
  display:grid; grid-template-columns: 120px 1fr; gap: 28px; align-items:center;
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: 32px; margin-bottom: 56px;
}
@media (max-width:640px){ .about{ grid-template-columns: 1fr; text-align:center; } }
.about-avatar{
  width:100px; height:100px; border-radius:50%;
  background: linear-gradient(135deg, var(--coral), var(--gold));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-family:var(--serif); font-weight:700; font-size:2.2rem;
  margin: 0 auto;
}
.about h3{ font-family: var(--serif); font-size:1.3rem; margin:0 0 8px; }
.about p{ margin:0 0 12px; color: var(--ink-soft); font-size:0.98rem; }
.about p:last-child{ margin-bottom: 0; }
.about-oneliner{
  font-family: var(--serif); font-style: italic; color: var(--emerald-dark) !important;
  font-size: 1.02rem; padding-top: 10px; border-top: 1px dashed var(--bg-line);
}

/* ---------- Specimen / course cards ---------- */
.specimen{ position:relative; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px 22px 22px; }
.specimen-tag{ font-family: var(--mono); font-size:0.66rem; letter-spacing:0.06em; color: var(--ink-soft); text-transform:uppercase; margin-bottom:10px; display:flex; justify-content:space-between; gap:10px; }
.specimen h3{ font-family: var(--serif); font-size:1.2rem; margin: 0 0 8px; }
.specimen p{ margin:0 0 14px; color: var(--ink-soft); font-size:0.92rem; }

.pill{ font-family: var(--mono); font-size:0.66rem; text-transform:uppercase; letter-spacing:0.05em; padding: 5px 11px; border-radius: 999px; display:inline-block; }
.pill-live{ background: var(--emerald-tint); color: var(--emerald-dark); }
.pill-soon{ background:#EEF0EA; color:#8B978A; }
.pill-locked{ background: var(--coral-tint); color: var(--coral-dark); }

/* ---------- Sections ---------- */
section{ padding: 20px 0 56px; }
.section-head{ max-width:60ch; margin-bottom:32px; }
.section-head .eyebrow{ background: var(--emerald-tint); color: var(--emerald-dark); margin-bottom:12px; }
.section-head h2{ font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.3rem); margin:0 0 10px; }
.section-head p{ color: var(--ink-soft); margin:0; }

.grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width:860px){ .grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width:560px){ .grid{ grid-template-columns: 1fr; } }

.course-card{ display:flex; flex-direction:column; gap:14px; border-top: 5px solid var(--course-color, var(--emerald)); }
.course-card .course-icon{
  width:44px; height:44px; border-radius:11px; background: var(--course-color-tint, var(--emerald-tint));
  color: var(--course-color, var(--emerald)); display:flex; align-items:center; justify-content:center;
  font-family:var(--serif); font-weight:700; font-size:1.2rem;
}
.course-card.is-disabled{ opacity:0.62; }
.course-card.is-disabled .specimen p{ color:#9AA69A; }

/* ---------- Pricing ---------- */
.price-card{ max-width: 480px; margin: 0 auto; text-align:center; padding: 44px 34px; }
.pricing-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items:start; }
.pricing-grid .price-card-half{ max-width:none; margin:0; }
@media (max-width:760px){ .pricing-grid{ grid-template-columns: 1fr; } }
.price{ font-family: var(--serif); font-size: 3.1rem; margin: 10px 0 4px; color: var(--emerald-dark); }
.price span{ font-size:1rem; font-family:var(--sans); color:var(--ink-soft); }
.price-list{ list-style:none; padding:0; margin: 22px 0 28px; text-align:left; }
.price-list li{ display:flex; gap:10px; align-items:flex-start; padding: 9px 0; border-bottom: 1px dashed var(--bg-line); font-size:0.95rem; }
.price-list li:before{ content:"✓"; color:var(--emerald); font-weight:700; }
.stat-count{ font-family:var(--mono); font-size:0.85rem; color: var(--ink-soft); margin-top:10px; }

footer{ border-top: 1px solid var(--bg-line); padding: 30px 0 50px; font-family: var(--mono); font-size: 0.75rem; color: var(--ink-soft); display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }
.footer-tagline{ font-family: var(--serif); font-style: italic; font-size: 0.95rem; color: var(--emerald-dark); flex-basis: 100%; margin-bottom: 4px; }

/* ============================================================
   COURSE PAGE
   ============================================================ */
.course-hero{
  border-radius: var(--radius); padding: 30px 32px; margin-bottom: 40px;
  background: linear-gradient(135deg, var(--course-color, var(--emerald)) 0%, var(--course-color-dark, var(--emerald-dark)) 100%);
  color:#fff;
}
.course-hero .eyebrow{ background: rgba(255,255,255,0.15); color:#fff; }
.course-hero h2{ font-family:var(--serif); font-size: clamp(1.6rem, 3vw, 2.1rem); margin: 4px 0 8px; color:#fff; }
.course-hero p{ color: rgba(255,255,255,0.85); margin:0; max-width:60ch; }
.course-hero-oneliner{
  margin-top: 14px !important; padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.2);
  font-family: var(--mono); font-size: 0.8rem !important;
  text-transform: uppercase; letter-spacing: 0.04em;
  color: rgba(255,255,255,0.95) !important;
}

/* free preview */
.preview-tips{ list-style:none; padding:0; margin: 0 0 30px; display:grid; gap:12px; }
.preview-tips li{ background: var(--card); border-radius: var(--radius-sm); border-left: 5px solid var(--gold); box-shadow: var(--shadow-sm); padding: 15px 18px; font-size: 0.95rem; }

/* locked teaser */
.locked-panel{ position:relative; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 32px; text-align:center; margin: 10px 0 50px; }
.locked-panel .lock-icon{
  width:52px; height:52px; border-radius:50%; background: var(--coral-tint); color: var(--coral-dark);
  display:flex; align-items:center; justify-content:center; margin: 0 auto 16px; font-size:1.4rem;
}
.locked-panel h3{ font-family:var(--serif); font-size:1.3rem; margin: 0 0 8px; }
.locked-panel p{ color: var(--ink-soft); margin: 0 0 20px; }
.locked-unit-list{ list-style:none; padding:0; margin: 0 0 24px; display:grid; gap:8px; text-align:left; max-width:440px; margin-left:auto; margin-right:auto; }
.locked-unit-list li{
  display:flex; justify-content:space-between; align-items:center; gap:10px;
  padding: 10px 14px; background: var(--bg); border-radius: var(--radius-sm); font-size:0.88rem; color: var(--ink-soft);
}
.locked-unit-list li span.lock-glyph{ opacity:0.6; }

.code-row{ max-width:340px; margin: 0 auto; }
.code-row input{
  width:100%; font-family: var(--mono); font-size: 0.95rem; letter-spacing: 0.08em;
  padding: 12px 14px; border: 1.5px solid var(--bg-line); border-radius: var(--radius-sm);
  background: var(--bg); color: var(--ink); text-align:center; margin-bottom:10px; text-transform:uppercase;
}
.code-row input:focus{ outline:none; border-color: var(--emerald); }
.gate-error{ color: var(--coral-dark); font-family: var(--mono); font-size:0.76rem; min-height: 18px; margin-bottom: 6px; }
.or-divider{ font-family:var(--mono); font-size:0.72rem; color:var(--ink-soft); margin: 16px 0; text-transform:uppercase; letter-spacing:0.08em; }

/* full app (post-unlock) */
.unit-list{ display:grid; gap:14px; margin: 26px 0 50px; }
.unit-row{
  display:flex; align-items:center; justify-content:space-between; gap:16px; padding: 18px 20px;
  background:var(--card); border-radius: var(--radius); box-shadow: var(--shadow-sm); cursor:pointer; border: 2px solid transparent;
}
.unit-row:hover{ border-color: var(--emerald); }
.unit-row .u-num{
  font-family:var(--mono); color:#fff; font-size:0.72rem; min-width:30px; height:30px; border-radius:8px;
  background: var(--emerald); display:flex; align-items:center; justify-content:center;
}
.unit-row .u-name{ font-family:var(--serif); font-size:1.12rem; flex:1; }

.tips-list{ list-style:none; padding:0; margin:0 0 34px; display:grid; gap:12px; }
.tips-list li{ background: var(--card); border-radius: var(--radius-sm); border-left: 5px solid var(--gold); box-shadow: var(--shadow-sm); padding: 15px 18px; font-size: 0.95rem; }

.q-card{ margin-bottom: 20px; }
.q-card .options{ display:grid; gap:10px; margin: 4px 0 14px; }
.q-opt{ display:flex; align-items:center; gap:10px; padding: 12px 14px; border: 1.5px solid var(--bg-line); border-radius: var(--radius-sm); cursor:pointer; font-size:0.93rem; }
.q-opt:hover{ border-color: var(--emerald); }
.q-opt input{ accent-color: var(--emerald); }
.q-opt.correct{ border-color: var(--emerald); background: var(--emerald-tint); }
.q-opt.wrong{ border-color: var(--coral); background: var(--coral-tint); }
.q-feedback{ font-family:var(--mono); font-size:0.8rem; padding-top: 6px; min-height: 20px; }
.q-feedback.ok{ color: var(--emerald-dark); }
.q-feedback.no{ color: var(--coral-dark); }

.frq-card{ margin-bottom:18px; }
.frq-card .frq-answer{ display:none; margin-top:14px; padding-top:14px; border-top: 1px dashed var(--bg-line); }
.frq-card .frq-answer.shown{ display:block; }
.frq-card .frq-answer ul{ margin:8px 0 0; padding-left: 20px; }
.frq-card .frq-answer li{ margin-bottom:6px; font-size:0.9rem; color: var(--ink-soft); }

.score-bar{
  position: sticky; top:0; background: var(--bg); padding: 16px 0; display:flex; justify-content:space-between; align-items:center;
  border-bottom: 1px solid var(--bg-line); margin-bottom: 30px; z-index: 5;
}
.score-bar .score{ font-family:var(--mono); font-size:0.85rem; background: var(--emerald-tint); color: var(--emerald-dark); padding: 6px 12px; border-radius: 999px; }

.tab-row{ display:flex; gap:10px; margin-bottom:22px; }
.tab-btn{
  font-family:var(--sans); font-weight:600; font-size:0.88rem; padding:10px 18px; border-radius:999px;
  border:1.5px solid var(--bg-line); background:var(--card); color:var(--ink-soft); cursor:pointer;
}
.tab-btn.active{ background: var(--emerald); border-color: var(--emerald); color:#fff; }

.back-link{ font-family:var(--mono); font-size:0.78rem; text-decoration:none; color:var(--ink-soft); display:inline-block; margin-bottom:20px; }