/* ═══════════════════════════════════════════════════════
   EB FIELD GUIDE — Design System
   ═══════════════════════════════════════════════════════ */

:root {
  --bg: #0c0e13;
  --bg2: #111318;
  --card: #171a22;
  --card-border: #242833;
  --card-hover: #1e2230;
  --text: #e2e6f0;
  --text-dim: #8891a8;
  --text-xdim: #5c6478;
  --accent: #7c6cf0;
  --accent-glow: rgba(124,108,240,0.18);
  --green: #00d68f;
  --green-dim: rgba(0,214,143,0.12);
  --orange: #f5a623;
  --orange-dim: rgba(245,166,35,0.10);
  --red: #ff6b6b;
  --red-dim: rgba(255,107,107,0.10);
  --blue: #4ecdc4;
  --blue-dim: rgba(78,205,196,0.10);
  --pink: #f78fb3;
  --pink-dim: rgba(247,143,179,0.10);
  --yellow: #feca57;
  --yellow-dim: rgba(254,202,87,0.10);
  --code-bg: #13161e;
  --radius: 12px;
  --radius-sm: 8px;
  --beginner: #00d68f;
  --beginner-dim: rgba(0,214,143,0.10);
  --intermediate: #f5a623;
  --intermediate-dim: rgba(245,166,35,0.10);
  --advanced: #ff6b6b;
  --advanced-dim: rgba(255,107,107,0.10);
}

* { margin:0; padding:0; box-sizing:border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  line-height: 1.72;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: #fff; }

/* ═══ SITE NAV ═══ */
.site-nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(12,14,19,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  display: flex; align-items: center;
  padding: 0 28px; height: 52px;
  gap: 16px;
}
.site-nav .logo {
  font-family: 'Fraunces', serif;
  font-weight: 900; font-size: 0.95rem;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; white-space: nowrap;
  text-decoration: none;
}
.site-nav .nav-links {
  display: flex; gap: 4px; margin-left: auto;
  flex-wrap: wrap;
}
.site-nav .nav-link {
  padding: 5px 12px; border-radius: 100px;
  font-size: 0.74rem; font-weight: 600;
  color: var(--text-dim); text-decoration: none;
  transition: all 0.2s; border: 1px solid transparent;
}
.site-nav .nav-link:hover { color: var(--text); background: var(--card); }
.site-nav .nav-link.active { background: var(--accent-glow); color: var(--accent); border-color: rgba(124,108,240,0.3); }

.hamburger { display:none; background:none; border:none; color:var(--text); font-size:1.4rem; cursor:pointer; }
@media(max-width:700px) {
  .site-nav .nav-links { display:none; }
  .site-nav .nav-links.open {
    display:flex; flex-direction:column;
    position:absolute; top:52px; left:0; right:0;
    background: var(--bg2); border-bottom:1px solid var(--card-border);
    padding:12px 20px; gap:6px;
  }
  .hamburger { display:block; margin-left:auto; }
}

/* ═══ PROGRESS ═══ */
.progress-wrap {
  display:flex; align-items:center; gap:10px;
  padding:8px 28px; background:var(--bg2);
  border-bottom:1px solid var(--card-border);
  position:sticky; top:52px; z-index:199;
}
.progress-track { flex:1; height:4px; background:var(--card); border-radius:2px; overflow:hidden; }
.progress-fill { height:100%; border-radius:2px; width:0%; transition:width 0.4s ease;
  background:linear-gradient(90deg, var(--beginner), var(--intermediate), var(--advanced));
}
.progress-lbl { font-family:'JetBrains Mono',monospace; font-size:0.7rem; color:var(--text-dim); white-space:nowrap; }

/* ═══ CONTAINER ═══ */
.container { max-width:800px; margin:0 auto; padding:0 24px 100px; }
.container-wide { max-width:1100px; margin:0 auto; padding:0 24px 100px; }

/* ═══ HERO ═══ */
.hero {
  min-height:50vh; display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  text-align:center; padding:56px 24px 32px;
  position:relative; overflow:hidden;
}
.hero::before {
  content:''; position:absolute;
  top:-140px; left:50%; transform:translateX(-50%);
  width:700px; height:700px;
  background:radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
  pointer-events:none; animation:heroGlow 5s ease-in-out infinite;
}
@keyframes heroGlow {
  0%,100%{opacity:.4;transform:translateX(-50%) scale(1);}
  50%{opacity:.65;transform:translateX(-50%) scale(1.08);}
}
.hero h1 {
  font-family:'Fraunces',serif; font-weight:900;
  font-size:clamp(2rem,5vw,3.2rem);
  letter-spacing:-1.5px; line-height:1.12;
  position:relative; z-index:1;
}
.hero h1 .grad {
  background:linear-gradient(135deg, var(--accent), var(--blue));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.hero .sub {
  font-size:1.05rem; color:var(--text-dim);
  margin-top:14px; max-width:560px;
  position:relative; z-index:1;
}
.hero .badges {
  display:flex; gap:8px; margin-top:20px;
  flex-wrap:wrap; justify-content:center;
  position:relative; z-index:1;
}
.badge {
  display:inline-flex; align-items:center; gap:5px;
  padding:5px 13px; border-radius:100px;
  font-size:0.75rem; font-weight:600;
}
.badge-b { background:var(--beginner-dim); color:var(--beginner); border:1px solid rgba(0,214,143,0.25); }
.badge-i { background:var(--intermediate-dim); color:var(--intermediate); border:1px solid rgba(245,166,35,0.25); }
.badge-a { background:var(--advanced-dim); color:var(--advanced); border:1px solid rgba(255,107,107,0.25); }
.badge-accent { background:var(--accent-glow); color:var(--accent); border:1px solid rgba(124,108,240,0.3); }

/* ═══ SECTION HEADERS ═══ */
.section-header {
  margin-top:60px; padding:24px 0 18px;
  border-top:2px solid; position:relative;
}
.section-header.beginner { border-color:var(--beginner); }
.section-header.intermediate { border-color:var(--intermediate); }
.section-header.advanced { border-color:var(--advanced); }
.section-header .section-tag {
  font-family:'JetBrains Mono',monospace;
  font-size:0.68rem; font-weight:600;
  text-transform:uppercase; letter-spacing:2px; margin-bottom:5px;
}
.section-header.beginner .section-tag { color:var(--beginner); }
.section-header.intermediate .section-tag { color:var(--intermediate); }
.section-header.advanced .section-tag { color:var(--advanced); }
.section-header h2 {
  font-family:'Fraunces',serif; font-weight:900;
  font-size:1.9rem; line-height:1.15;
}
.section-header .section-desc { color:var(--text-dim); font-size:0.98rem; margin-top:6px; max-width:600px; }

/* ═══ LESSONS ═══ */
.lesson {
  margin-top:44px; opacity:0; transform:translateY(24px);
  transition:all .5s ease;
}
.lesson.visible { opacity:1; transform:translateY(0); }
.lesson-num {
  font-family:'JetBrains Mono',monospace;
  font-size:0.66rem; font-weight:600;
  text-transform:uppercase; letter-spacing:1.5px; margin-bottom:5px;
}
.lesson-num.beginner { color:var(--beginner); }
.lesson-num.intermediate { color:var(--intermediate); }
.lesson-num.advanced { color:var(--advanced); }
.lesson h3 {
  font-family:'Fraunces',serif; font-weight:700;
  font-size:1.45rem; line-height:1.2; margin-bottom:12px;
}
.lesson p { color:var(--text-dim); margin-bottom:12px; font-size:0.96rem; }
.lesson p strong, .lesson p b { color:var(--text); font-weight:600; }
.lesson p code, .inline-code {
  background:var(--code-bg); padding:2px 7px;
  border-radius:5px; font-family:'JetBrains Mono',monospace;
  font-size:0.8rem; color:var(--blue);
}

/* ═══ BOXES ═══ */
.box { border-radius:var(--radius); padding:18px 22px; margin:16px 0; border:1px solid; }
.box .tag {
  font-family:'JetBrains Mono',monospace;
  font-size:0.66rem; font-weight:600;
  text-transform:uppercase; letter-spacing:1.5px; margin-bottom:7px;
}
.box p,.box li { color:var(--text)!important; font-size:0.91rem!important; margin-bottom:5px; }
.box ul { list-style:none; padding:0; margin:7px 0 0; }
.box ul li { position:relative; padding-left:18px; margin-bottom:4px; }
.box ul li::before { content:'→'; position:absolute; left:0; }

.box-analogy { background:var(--orange-dim); border-color:rgba(245,166,35,0.2); }
.box-analogy .tag,.box-analogy ul li::before { color:var(--orange); }
.box-info { background:var(--blue-dim); border-color:rgba(78,205,196,0.2); }
.box-info .tag,.box-info ul li::before { color:var(--blue); }
.box-try { background:var(--green-dim); border-color:rgba(0,214,143,0.2); }
.box-try .tag,.box-try ul li::before { color:var(--green); }
.box-warn { background:var(--red-dim); border-color:rgba(255,107,107,0.2); }
.box-warn .tag,.box-warn ul li::before { color:var(--red); }
.box-ref { background:var(--pink-dim); border-color:rgba(247,143,179,0.2); }
.box-ref .tag,.box-ref ul li::before { color:var(--pink); }
.box-key { background:var(--yellow-dim); border-color:rgba(254,202,87,0.2); }
.box-key .tag,.box-key ul li::before { color:var(--yellow); }

/* ═══ CODE ═══ */
.code-wrap { margin:16px 0; border-radius:var(--radius); overflow:hidden; border:1px solid var(--card-border); }
.code-head {
  display:flex; align-items:center; justify-content:space-between;
  background:var(--card); padding:7px 14px;
  border-bottom:1px solid var(--card-border);
}
.code-name { font-family:'JetBrains Mono',monospace; font-size:0.72rem; color:var(--text-dim); }
.code-copy {
  background:none; border:1px solid var(--card-border);
  color:var(--text-dim); font-family:'JetBrains Mono',monospace;
  font-size:0.68rem; padding:3px 9px;
  border-radius:6px; cursor:pointer; transition:all .2s;
}
.code-copy:hover { border-color:var(--accent); color:var(--accent); }
.code-body { background:var(--code-bg); padding:16px 18px; overflow-x:auto; }
.code-body pre {
  font-family:'JetBrains Mono',monospace;
  font-size:0.78rem; line-height:1.6; color:var(--text); white-space:pre; margin:0;
}
.kw{color:#c792ea;}.fn{color:#82aaff;}.str{color:#c3e88d;}.num{color:#f78c6c;}
.cm{color:#546e7a;font-style:italic;}.op{color:#89ddff;}.prop{color:#ffcb6b;}.tag-html{color:#f07178;}

/* ═══ STEPS ═══ */
.steps { margin:14px 0; }
.step { display:flex; gap:12px; margin-bottom:11px; align-items:flex-start; }
.step-n {
  flex-shrink:0; width:24px; height:24px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-family:'JetBrains Mono',monospace; font-size:0.7rem;
  font-weight:600; color:#fff; margin-top:2px;
}
.step-n.beginner{background:var(--beginner);}.step-n.intermediate{background:var(--intermediate);}.step-n.advanced{background:var(--advanced);}.step-n.accent{background:var(--accent);}
.step-t { font-size:0.91rem; color:var(--text); line-height:1.55; }
.step-t code { background:var(--code-bg); padding:2px 6px; border-radius:5px; font-family:'JetBrains Mono',monospace; font-size:0.78rem; color:var(--blue); }

/* ═══ CARDS ═══ */
.cards { display:grid; gap:12px; margin:16px 0; }
.cards-2{grid-template-columns:1fr 1fr;}.cards-3{grid-template-columns:1fr 1fr 1fr;}
@media(max-width:620px){.cards-2,.cards-3{grid-template-columns:1fr;}}
.card {
  background:var(--card); border:1px solid var(--card-border);
  border-radius:var(--radius); padding:16px;
  transition:border-color .3s,transform .2s;
}
.card:hover { border-color:var(--accent); transform:translateY(-2px); }
.card .icon { font-size:1.4rem; margin-bottom:7px; }
.card h4 { font-size:0.9rem; font-weight:700; margin-bottom:4px; }
.card p { font-size:0.82rem!important; color:var(--text-dim)!important; margin-bottom:0!important; }

/* ═══ LINK CARDS (home page) ═══ */
.guide-card {
  display:block; text-decoration:none; color:inherit;
  background:var(--card); border:1px solid var(--card-border);
  border-radius:var(--radius); padding:24px;
  transition:all .3s;
  position:relative; overflow:hidden;
}
.guide-card:hover { border-color:var(--accent); transform:translateY(-3px); box-shadow:0 8px 30px rgba(0,0,0,.3); }
.guide-card .guide-num {
  font-family:'JetBrains Mono',monospace; font-size:0.65rem;
  font-weight:600; text-transform:uppercase; letter-spacing:1.5px;
  color:var(--text-xdim); margin-bottom:6px;
}
.guide-card h3 { font-family:'Fraunces',serif; font-weight:700; font-size:1.15rem; margin-bottom:6px; }
.guide-card p { color:var(--text-dim); font-size:0.88rem; margin:0; }
.guide-card .guide-status {
  display:inline-block; margin-top:10px;
  padding:3px 10px; border-radius:100px;
  font-size:0.68rem; font-weight:600;
}
.guide-card .status-live { background:var(--green-dim); color:var(--green); border:1px solid rgba(0,214,143,0.25); }
.guide-card .status-soon { background:var(--card); color:var(--text-xdim); border:1px solid var(--card-border); }
.guide-card .guide-icon {
  position:absolute; top:20px; right:20px;
  font-size:2rem; opacity:0.15;
}

/* ═══ TABLE ═══ */
.tbl-wrap { margin:16px 0; overflow-x:auto; border:1px solid var(--card-border); border-radius:var(--radius); }
table { width:100%; border-collapse:collapse; font-size:0.82rem; }
th { background:var(--card); text-align:left; padding:9px 13px; font-weight:600; color:var(--text); border-bottom:1px solid var(--card-border); font-size:0.76rem; text-transform:uppercase; letter-spacing:.5px; }
td { padding:9px 13px; border-bottom:1px solid var(--card-border); color:var(--text-dim); vertical-align:top; }
td code { background:var(--code-bg); padding:1px 5px; border-radius:4px; font-family:'JetBrains Mono',monospace; font-size:0.76rem; color:var(--blue); }
tr:last-child td { border-bottom:none; }

/* ═══ QUIZ ═══ */
.quiz { background:var(--card); border:1px solid var(--card-border); border-radius:var(--radius); padding:20px; margin:20px 0; }
.quiz h4 { font-size:0.93rem; margin-bottom:11px; }
.quiz-opts { display:flex; flex-direction:column; gap:6px; }
.quiz-btn {
  background:var(--code-bg); border:1px solid var(--card-border);
  border-radius:var(--radius-sm); padding:10px 13px;
  text-align:left; color:var(--text);
  font-family:'DM Sans',sans-serif; font-size:0.86rem;
  cursor:pointer; transition:all .2s;
}
.quiz-btn:hover { border-color:var(--accent); background:var(--accent-glow); }
.quiz-btn.correct { border-color:var(--green); background:var(--green-dim); color:var(--green); }
.quiz-btn.wrong { border-color:var(--red); background:var(--red-dim); color:var(--red); }
.quiz-fb { margin-top:9px; font-size:0.86rem; display:none; }

/* ═══ DIVIDER ═══ */
.divider { height:1px; margin:44px 0 0; background:linear-gradient(90deg,transparent,var(--card-border),transparent); }

/* ═══ FOOTER ═══ */
.site-footer {
  border-top:1px solid var(--card-border);
  padding:28px; text-align:center;
  color:var(--text-xdim); font-size:0.78rem;
}
.site-footer a { color:var(--accent); text-decoration:none; }

/* ═══ FLOW ═══ */
.flow { display:flex; align-items:center; justify-content:center; gap:0; margin:20px 0; flex-wrap:wrap; }
.flow-n { background:var(--card); border:1px solid var(--card-border); border-radius:10px; padding:9px 14px; text-align:center; font-size:0.8rem; font-weight:500; min-width:90px; }
.flow-a { color:var(--accent); font-size:1.1rem; padding:0 4px; }

/* ═══ PRICING ═══ */
.pricing-grid {
  display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:16px;
}
@media(max-width:700px) { .pricing-grid { grid-template-columns:1fr; } }
.pricing-card {
  background:var(--card); border:1px solid var(--card-border);
  border-radius:var(--radius); padding:28px; position:relative;
}
.pricing-featured {
  border-color:var(--accent); box-shadow:0 0 30px rgba(124,108,240,0.12);
}
.pricing-badge-pro {
  position:absolute; top:-10px; right:20px;
  background:linear-gradient(135deg, var(--accent), var(--blue));
  color:#fff; font-family:'JetBrains Mono',monospace;
  font-size:0.62rem; font-weight:600; text-transform:uppercase;
  letter-spacing:1px; padding:4px 12px; border-radius:100px;
}
.pricing-tier {
  font-family:'Fraunces',serif; font-weight:900; font-size:1.3rem;
  margin-bottom:4px;
}
.pricing-price {
  font-family:'Fraunces',serif; font-weight:900; font-size:2.2rem;
  background:linear-gradient(135deg, var(--accent), var(--blue));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.pricing-once { font-size:0.8rem; font-weight:400; }
.pricing-desc {
  color:var(--text-dim); font-size:0.88rem; margin:6px 0 18px;
}
.pricing-features {
  list-style:none; padding:0; margin:0;
}
.pricing-features li {
  position:relative; padding:6px 0 6px 24px;
  font-size:0.88rem; color:var(--text-dim);
}
.pricing-features li::before {
  position:absolute; left:0; font-size:0.82rem;
}
.pricing-features li.included::before { content:'✓'; color:var(--green); }
.pricing-features li.excluded::before { content:'✗'; color:var(--text-xdim); }
.pricing-features li.excluded { color:var(--text-xdim); }
.pricing-btn {
  display:block; text-align:center; margin-top:20px;
  padding:12px 24px; border-radius:100px;
  background:linear-gradient(135deg, var(--accent), var(--blue));
  color:#fff; font-weight:700; font-size:0.92rem;
  text-decoration:none; transition:transform .2s, box-shadow .2s;
}
.pricing-btn:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(124,108,240,0.3); }

/* ═══ SCROLLBAR ═══ */
::-webkit-scrollbar{width:5px;height:5px;}
::-webkit-scrollbar-track{background:var(--bg);}
::-webkit-scrollbar-thumb{background:var(--card-border);border-radius:3px;}