/* =========================================================================
   QALadder — Roadmap page  (loads AFTER theme.css)
   Tokens, base, nav, buttons, toast, footer live in theme.css.
   ========================================================================= */

.view{display:none;}
.view.active{display:block;animation:fadeUp .45s var(--ease) both;}

/* ===== HERO ============================================================= */
.hero-band{
  position:relative;overflow:hidden;padding:64px 20px 108px;
  color:#fff;
  background:
    radial-gradient(120% 120% at 80% -20%, rgba(34,195,192,.35), transparent 55%),
    radial-gradient(120% 120% at 0% 0%, rgba(124,107,240,.45), transparent 55%),
    linear-gradient(160deg,#171331 0%,#0F1430 55%,#0B1020 100%);
}
:root[data-theme="dark"] .hero-band{
  background:
    radial-gradient(120% 120% at 80% -20%, rgba(45,212,207,.28), transparent 55%),
    radial-gradient(120% 120% at 0% 0%, rgba(139,124,248,.32), transparent 55%),
    linear-gradient(160deg,#12172A 0%,#0B0F1C 60%,#080B14 100%);
}
.hero-in{max-width:1000px;margin:0 auto;position:relative;z-index:1;}
/* faint grid instead of runway stripes */
.runway{
  position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 30%,transparent 78%);
  mask-image:radial-gradient(120% 90% at 50% 0%,#000 30%,transparent 78%);
}
.hero-band .eyebrow{
  color:#D9D4FF;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);
  animation:fadeUp .5s var(--ease) both;
}
.hero-band h1{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(33px,6vw,56px);margin:0 0 16px;letter-spacing:-.03em;line-height:1.04;
  animation:fadeUp .5s .05s var(--ease) both;
}
.hero-band h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#B7ACFF 0%,#5FE6DF 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-sub{
  color:rgba(255,255,255,.76);font-size:16.5px;line-height:1.65;max-width:650px;margin-bottom:28px;
  animation:fadeUp .5s .1s var(--ease) both;
}
.hero-sub b{color:#fff;font-weight:600;}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;animation:fadeUp .5s .15s var(--ease) both;}
.hero-band .btn.ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.28);}
.hero-band .btn.ghost:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff;}
.hero-stats{display:flex;gap:38px;margin-top:40px;flex-wrap:wrap;animation:fadeUp .5s .2s var(--ease) both;}
.hstat .hn{font-family:var(--font-display);font-size:30px;font-weight:800;
  background:linear-gradient(120deg,#C3BAFF,#63E7E0);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hstat .hl{font-size:12px;color:rgba(255,255,255,.6);margin-top:2px;}

/* ===== PROGRESS PASS (signature card) ================================== */
.bp{
  max-width:1000px;margin:-72px auto 26px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-xl);
  box-shadow:var(--shadow-lg);display:flex;overflow:hidden;position:relative;z-index:2;
  animation:pop .5s .25s var(--ease) both;
}
.bp::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);}
.bp-main{flex:1;padding:24px 26px;}
.bp-stub{
  width:200px;border-left:2px dashed var(--border-strong);padding:22px 20px;
  display:flex;flex-direction:column;justify-content:center;background:var(--surface-2);
}
.bp-lbl{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-faint);margin-bottom:3px;}
.bp-val{font-family:var(--font-display);font-size:16px;font-weight:700;margin-bottom:14px;}
.bp-route{display:flex;align-items:center;gap:16px;margin:8px 0 16px;}
.bp-code{font-family:var(--font-display);font-size:23px;font-weight:800;letter-spacing:-.01em;line-height:1.15;white-space:nowrap;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.bp-plane{flex:1;height:2px;background:repeating-linear-gradient(90deg,var(--border-strong) 0 8px,transparent 8px 15px);position:relative;}
.bp-plane::after{content:"▸";position:absolute;top:-11px;color:var(--accent);font-size:17px;transition:left var(--t-slow) var(--ease);left:var(--pos,0%);}
.bp-bar{height:9px;background:var(--surface-3);border-radius:999px;overflow:hidden;}
.bp-fill{height:100%;background:var(--grad-brand);width:0%;transition:width .8s var(--ease);border-radius:999px;}
.bp-stub .big{font-family:var(--font-display);font-size:36px;font-weight:800;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.bp-chal{display:inline-block;margin-top:12px;font-family:var(--font-mono);font-size:10px;color:var(--accent-deep);
  background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);
  border-radius:999px;padding:6px 11px;text-decoration:none;transition:background var(--t-fast),transform var(--t-fast);}
.bp-chal:hover{transform:translateY(-1px);background:color-mix(in srgb,var(--accent) 18%,transparent);}
@media(max-width:640px){
  .bp{flex-direction:column;}
  .bp-stub{width:auto;border-left:none;border-top:2px dashed var(--border-strong);flex-direction:row;align-items:center;gap:14px;}
}

/* ===== SHARED TYPE ===================================================== */
h2{font-family:var(--font-display);font-size:21px;font-weight:700;margin:0 0 6px;letter-spacing:-.01em;}
.card-sub{font-size:13.5px;color:var(--text-soft);margin-bottom:12px;line-height:1.65;}
.card-sub b{color:var(--text);font-weight:600;}
.mono-lbl{font-family:var(--font-mono);font-size:11px;color:var(--text-soft);text-transform:uppercase;letter-spacing:.1em;}
.section-head{margin:34px 0 14px;}
.section-head .mono-lbl{color:var(--accent-deep);}
.section-head h2{font-size:24px;}

/* ===== RUNGS =========================================================== */
.rungs{display:flex;gap:10px;flex-wrap:wrap;}
.rung{flex:1;min-width:140px;cursor:pointer;border-radius:var(--r);padding:14px;
  border:1px solid var(--border);background:var(--surface-2);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t-fast);}
.rung:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.rung .rl{font-family:var(--font-mono);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;}
.rung .rn{font-size:12px;line-height:1.4;color:var(--text-soft);}
.rung .rbar{height:6px;background:var(--surface-3);border-radius:999px;margin-top:10px;overflow:hidden;}
.rung .rfill{height:100%;width:0%;border-radius:999px;transition:width .6s var(--ease);}
.rung.jr{border-color:var(--jr-bg);}   .rung.jr .rl{color:var(--jr);}   .rung.jr .rfill{background:var(--jr);}
.rung.mid{border-color:var(--mid-bg);} .rung.mid .rl{color:var(--mid);} .rung.mid .rfill{background:var(--mid);}
.rung.sr{border-color:var(--sr-bg);}   .rung.sr .rl{color:var(--sr);}   .rung.sr .rfill{background:var(--sr);}
.rung.lead{border-color:var(--lead-bg);}.rung.lead .rl{color:var(--lead);}.rung.lead .rfill{background:var(--lead);}

/* ===== METHOD ========================================================== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.step{position:relative;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:20px 20px 22px;overflow:hidden;
  transition:transform var(--t-fast) var(--ease),border-color var(--t-fast),box-shadow var(--t-fast);}
.step::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand);
  opacity:0;transition:opacity var(--t-fast);}
.step:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow);}
.step:hover::before{opacity:1;}
.step-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.step-num{flex:0 0 auto;width:40px;height:40px;display:flex;align-items:center;justify-content:center;
  border-radius:12px;font-family:var(--font-display);font-size:16px;font-weight:800;color:#fff;
  background:var(--grad-brand);box-shadow:0 6px 16px -4px color-mix(in srgb,var(--accent) 55%,transparent);}
.step-title{font-family:var(--font-display);font-size:15.5px;font-weight:700;color:var(--text);letter-spacing:-.01em;line-height:1.2;}
.step .st{font-size:13px;line-height:1.62;color:var(--text-soft);}
.step .st b{color:var(--text);font-weight:600;}

/* "How to run a session" numbered steps */
.run-steps{list-style:none;margin:6px 0 0;padding:0;counter-reset:run;display:flex;flex-direction:column;gap:12px;}
.run-steps li{position:relative;counter-increment:run;padding-left:40px;font-size:14px;line-height:1.6;color:var(--text-soft);}
.run-steps li::before{content:counter(run);position:absolute;left:0;top:-1px;width:26px;height:26px;display:flex;
  align-items:center;justify-content:center;border-radius:8px;background:var(--accent-soft);color:var(--accent-deep);
  font-family:var(--font-mono);font-size:12px;font-weight:700;}
.run-steps li b{color:var(--text);font-weight:600;}

/* ===== MODULES ========================================================= */
.module{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);margin-bottom:12px;
  overflow:hidden;position:relative;box-shadow:var(--shadow-sm);
  transition:box-shadow var(--t) var(--ease),border-color var(--t-fast);}
.module::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--border);transition:background var(--t-fast);}
.module.jr::before{background:var(--jr);}   .module.mid::before{background:var(--mid);}
.module.sr::before{background:var(--sr);}   .module.lead::before{background:var(--lead);}
.module.open{box-shadow:var(--shadow);}
.m-head{display:flex;align-items:center;gap:10px;padding:17px 18px;cursor:pointer;user-select:none;flex-wrap:wrap;
  transition:background var(--t-fast);}
.m-head:hover{background:var(--surface-2);}
.lvl-tag{font-family:var(--font-mono);font-size:10px;font-weight:700;padding:3px 9px;border-radius:6px;
  text-transform:uppercase;letter-spacing:.06em;white-space:nowrap;}
.lvl-tag.jr{color:var(--jr);background:var(--jr-bg);}   .lvl-tag.mid{color:var(--mid);background:var(--mid-bg);}
.lvl-tag.sr{color:var(--sr);background:var(--sr-bg);}   .lvl-tag.lead{color:var(--lead);background:var(--lead-bg);}
.m-title{font-family:var(--font-display);font-weight:600;font-size:15.5px;flex:1;min-width:170px;}
.m-weeks{font-family:var(--font-mono);font-size:10.5px;color:var(--text-soft);}
.m-bar{width:54px;height:6px;background:var(--surface-3);border-radius:999px;overflow:hidden;}
.m-fill{height:100%;background:var(--pass);width:0%;border-radius:999px;transition:width .5s var(--ease);}
.chev{font-size:11px;color:var(--text-faint);transition:transform var(--t) var(--ease);}
.module.open .chev{transform:rotate(90deg);}
.m-body{display:none;}
.module.open .m-body{display:block;border-top:1px solid var(--border);animation:fadeIn .3s var(--ease) both;}
.goal{margin:16px 18px 4px;padding:12px 14px;background:var(--grad-brand-soft);border:1px solid var(--border);
  border-radius:var(--r-sm);font-size:12.5px;color:var(--text-soft);line-height:1.6;}
.goal b{color:var(--text);}
.section-lbl{font-family:var(--font-mono);font-size:11px;font-weight:700;color:var(--text-soft);text-transform:uppercase;
  letter-spacing:.05em;margin:16px 18px 6px;display:flex;align-items:center;gap:8px;}
.item{display:flex;align-items:flex-start;gap:11px;padding:7px 18px;font-size:13.5px;line-height:1.55;cursor:pointer;
  border-radius:8px;transition:background var(--t-fast);}
.item:hover{background:var(--surface-2);}
.box{flex:0 0 19px;width:19px;height:19px;margin-top:1px;border:2px solid var(--idle);border-radius:6px;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:12px;color:#fff;
  transition:all var(--t-fast) var(--ease);}
.item.done .box{background:var(--pass);border-color:var(--pass);transform:scale(1.02);}
.item.done .box::after{content:"✓";}
.item.done .txt{color:var(--text-faint);text-decoration:line-through;text-decoration-color:var(--border-strong);}
.txt{flex:1;} .txt b{color:var(--text);font-weight:600;}

/* ===== Q&A BANK ======================================================== */
.qa-filters{display:flex;gap:7px;flex-wrap:wrap;margin:14px 18px 6px;}
.qa-pill{font-family:var(--font-mono);font-size:10.5px;border:1px solid var(--border);border-radius:999px;
  padding:6px 13px;cursor:pointer;color:var(--text-soft);background:var(--surface-2);
  transition:all var(--t-fast) var(--ease);}
.qa-pill:hover{border-color:var(--accent);color:var(--accent-deep);}
.qa-pill.active{background:var(--grad-brand);color:#fff;border-color:transparent;}
.qa-item{margin:8px 18px;border:1px solid var(--border);border-radius:var(--r);overflow:hidden;background:var(--surface-2);}
.qa-q{display:flex;gap:11px;align-items:flex-start;padding:13px 15px;cursor:pointer;font-size:13.5px;font-weight:600;line-height:1.5;
  transition:background var(--t-fast);}
.qa-q:hover{background:var(--surface-3);}
.qa-cat{font-family:var(--font-mono);font-size:9px;font-weight:700;color:var(--accent-deep);background:var(--accent-soft);
  border-radius:6px;padding:3px 8px;white-space:nowrap;margin-top:2px;text-transform:uppercase;letter-spacing:.05em;}
.qa-a{display:none;padding:13px 15px;font-size:13.5px;line-height:1.65;color:var(--text-soft);border-top:1px solid var(--border);background:var(--surface);}
.qa-item.open .qa-a{display:block;animation:fadeIn .25s var(--ease) both;}
.qa-a::before{content:"MODEL ANSWER";display:block;font-family:var(--font-mono);font-size:9px;font-weight:700;letter-spacing:.1em;color:var(--pass);margin-bottom:6px;}

/* ===== GUIDED LESSONS ================================================== */
.lesson{margin:8px 18px;border:1px solid var(--border);border-radius:var(--r);overflow:hidden;background:var(--surface-2);}
.lesson-head{display:flex;gap:11px;align-items:center;padding:12px 15px;cursor:pointer;font-size:13.5px;font-weight:600;
  line-height:1.4;transition:background var(--t-fast);}
.lesson-head:hover{background:var(--surface-3);}
.lesson-n{flex:0 0 22px;width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:6px;
  font-family:var(--font-mono);font-size:11px;font-weight:700;color:#fff;background:var(--grad-brand);}
.lesson-t{flex:1;}
.lesson-chev{font-size:9px;color:var(--text-faint);transition:transform var(--t-fast) var(--ease);}
.lesson.open .lesson-chev{transform:rotate(90deg);}
.lesson-body{display:none;padding:14px 16px 16px;border-top:1px solid var(--border);background:var(--surface);}
.lesson.open .lesson-body{display:block;animation:fadeIn .25s var(--ease) both;}
.lesson-prose{font-size:13.5px;line-height:1.7;color:var(--text-soft);}
.lesson-prose b{color:var(--text);font-weight:600;}
.lesson-code{margin-top:13px;background:var(--code-bg);border:1px solid var(--code-line);border-radius:var(--r);overflow:hidden;}
.lesson-code-lbl{font-family:var(--font-mono);font-size:9px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-2);padding:8px 13px;border-bottom:1px solid var(--code-line);}
.lesson-code pre{margin:0;padding:13px;font-family:var(--font-mono);font-size:11.5px;line-height:1.65;color:var(--code-text);
  white-space:pre-wrap;word-break:break-word;overflow-x:auto;}
.lesson-drill{margin-top:13px;padding:12px 14px;background:var(--accent-soft);border-radius:var(--r);
  font-size:13px;line-height:1.6;color:var(--text-soft);}
.lesson-drill-lbl{display:block;font-family:var(--font-mono);font-size:9px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--accent-deep);margin-bottom:5px;}
.lesson-src{margin-top:14px;padding-top:10px;border-top:1px dashed var(--border);font-family:var(--font-mono);font-size:10px;color:var(--text-faint);font-style:normal;}

/* ----- rich lesson blocks (structured content) ----- */
.lesson-body > :first-child{margin-top:0;}
.l-lead{font-size:14.5px;line-height:1.6;font-weight:600;color:var(--text);margin:0 0 14px;padding:2px 0 2px 14px;
  border-left:3px solid transparent;border-image:var(--grad-brand) 1;}
.l-h{font-family:var(--font-display);font-size:13.5px;font-weight:700;color:var(--text);
  margin:20px 0 9px;display:flex;align-items:center;gap:9px;letter-spacing:-.01em;}
.l-h::before{content:"";flex:0 0 auto;width:7px;height:7px;border-radius:2px;background:var(--grad-brand);}
.l-p{font-size:13.5px;line-height:1.72;color:var(--text-soft);margin:0 0 11px;}
.l-p:last-child{margin-bottom:0;}
.l-p b,.l-ul b,.l-ol b,.l-lead b,.l-call-b b{color:var(--text);font-weight:700;}
.l-ul,.l-ol{margin:2px 0 13px;padding:0;list-style:none;}
.l-ul li{position:relative;padding-left:22px;margin-bottom:8px;font-size:13.5px;line-height:1.62;color:var(--text-soft);}
.l-ul li::before{content:"▸";position:absolute;left:5px;top:0;color:var(--accent);font-weight:700;}
.l-ol{counter-reset:lol;}
.l-ol li{position:relative;counter-increment:lol;padding-left:30px;margin-bottom:9px;font-size:13.5px;line-height:1.62;color:var(--text-soft);}
.l-ol li::before{content:counter(lol);position:absolute;left:0;top:1px;width:19px;height:19px;display:flex;align-items:center;
  justify-content:center;border-radius:6px;background:var(--accent-soft);color:var(--accent-deep);
  font-family:var(--font-mono);font-size:10.5px;font-weight:700;}
/* inline code chip */
code.ic{font-family:var(--font-mono);font-size:.85em;background:var(--accent-soft);color:var(--accent-deep);
  padding:1.5px 6px;border-radius:5px;font-weight:500;
  overflow-wrap:anywhere;-webkit-box-decoration-break:clone;box-decoration-break:clone;}
/* callouts */
.l-call{margin:14px 0;padding:11px 14px;border-radius:10px;border:1px solid var(--border);border-left-width:4px;
  background:var(--surface-2);}
.l-call-h{font-family:var(--font-mono);font-size:9.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  margin-bottom:5px;display:flex;align-items:center;gap:6px;}
.l-call-h::before{font-size:12px;}
.l-call-b{font-size:13px;line-height:1.62;color:var(--text-soft);}
.l-call.key{background:var(--grad-brand-soft);border-left-color:var(--accent);}
.l-call.key .l-call-h{color:var(--accent-deep);} .l-call.key .l-call-h::before{content:"◆";}
.l-call.warn{background:var(--warn-bg);border-left-color:var(--warn);}
.l-call.warn .l-call-h{color:var(--warn);} .l-call.warn .l-call-h::before{content:"⚠";}
.l-call.tip{background:var(--pass-bg);border-left-color:var(--pass);}
.l-call.tip .l-call-h{color:var(--pass);} .l-call.tip .l-call-h::before{content:"✔";}
.l-call code.ic{background:var(--surface);border:1px solid var(--border);}
/* drill -> "your turn" callout style */
.lesson-drill{margin-top:16px;padding:12px 15px;background:var(--grad-brand-soft);border:1px solid var(--border);
  border-left:4px solid var(--accent);border-radius:10px;font-size:13px;line-height:1.62;color:var(--text-soft);}
.lesson-drill-lbl{display:flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:9.5px;font-weight:700;
  letter-spacing:.09em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:6px;}
.lesson-drill-lbl::before{content:"✍";font-size:12px;}
.lesson-drill code.ic{background:var(--surface);border:1px solid var(--border);}
.lesson-drill b{color:var(--text);font-weight:700;}

/* ===== PROMPT (terminal) =============================================== */
.prompt{margin:14px 18px 18px;background:var(--code-bg);border:1px solid var(--code-line);border-radius:var(--r);overflow:hidden;}
.prompt-head{display:flex;justify-content:space-between;align-items:center;padding:9px 13px;border-bottom:1px solid var(--code-line);}
.prompt-lbl{font-family:var(--font-mono);font-size:10px;font-weight:700;color:var(--accent-2);text-transform:uppercase;letter-spacing:.1em;}
.copy-btn{font-family:var(--font-mono);font-size:10.5px;background:rgba(255,255,255,.08);color:var(--code-text);border:none;border-radius:6px;padding:5px 11px;cursor:pointer;transition:background var(--t-fast);}
.copy-btn:hover{background:rgba(255,255,255,.18);}
.prompt pre{margin:0;padding:13px;font-family:var(--font-mono);font-size:11.5px;line-height:1.65;color:var(--code-text);white-space:pre-wrap;word-break:break-word;}

/* ===== AUTH MODAL ====================================================== */
.modal-bg{position:fixed;inset:0;background:rgba(8,11,20,.62);backdrop-filter:blur(5px);display:none;align-items:center;justify-content:center;z-index:100;padding:16px;}
.modal-bg.show{display:flex;animation:fadeIn .2s var(--ease) both;}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);max-width:410px;width:100%;padding:28px;position:relative;box-shadow:var(--shadow-lg);animation:pop .28s var(--ease) both;}
.modal h3{font-family:var(--font-display);font-size:22px;font-weight:700;margin:0 0 4px;}
.modal .msub{font-size:13px;color:var(--text-soft);margin-bottom:16px;}
.modal label{display:block;font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-soft);margin:14px 0 5px;}
.modal input{width:100%;border:1px solid var(--border-strong);border-radius:10px;padding:12px;font-family:var(--font-body);font-size:14px;background:var(--surface-2);color:var(--text);transition:border-color var(--t-fast),box-shadow var(--t-fast);}
.modal input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}
.modal .btn{width:100%;margin-top:20px;}
.modal .switch{text-align:center;font-size:12.5px;color:var(--text-soft);margin-top:16px;}
.modal .switch a{color:var(--accent-deep);cursor:pointer;font-weight:600;text-decoration:underline;}
.modal .err{color:var(--danger);font-size:12.5px;margin-top:10px;display:none;line-height:1.4;}
.modal .close{position:absolute;top:14px;right:16px;border:none;background:none;font-size:18px;cursor:pointer;color:var(--text-faint);transition:color var(--t-fast);}
.modal .close:hover{color:var(--text);}

/* ===== AUTH MODAL ====================================================== */
.auth-modal{max-width:440px;padding:26px 26px 22px;}

.auth-head{text-align:center;margin-bottom:18px;}
.auth-mark{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:13px;
  background:var(--grad-brand);color:#fff;font-family:var(--font-display);font-weight:800;
  font-size:15px;letter-spacing:.02em;margin-bottom:10px;box-shadow:var(--shadow-accent);}
.auth-modal h3{margin:0 0 3px;}
.auth-modal .msub{margin:0;}

/* segmented control — the primary way to switch mode */
.auth-tabs{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;
  background:var(--surface-2);border:1px solid var(--border);border-radius:12px;margin-bottom:4px;}
.auth-tab{position:relative;z-index:1;border:none;background:none;cursor:pointer;padding:9px 8px;
  border-radius:9px;font-family:var(--font-display);font-size:13.5px;font-weight:600;
  color:var(--text-soft);transition:color var(--t-fast) var(--ease);}
.auth-tab:hover{color:var(--text);}
.auth-tab[aria-selected="true"]{color:var(--accent-contrast);}
.auth-tab:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.auth-tab-ind{position:absolute;z-index:0;top:4px;bottom:4px;left:4px;width:calc(50% - 6px);
  border-radius:9px;background:var(--grad-brand);box-shadow:var(--shadow-sm);
  transition:transform var(--t) var(--ease);}
.auth-tab-ind.right{transform:translateX(calc(100% + 4px));}

/* fields */
.auth-modal .field{margin-top:12px;}
.auth-modal .field label{margin-top:0;}
.auth-modal input{margin:0;}
.auth-modal .field.invalid input{border-color:var(--fail);background:var(--fail-bg);}
.auth-modal .field.invalid input:focus{box-shadow:0 0 0 3px var(--fail-bg);border-color:var(--fail);}
.auth-modal .field.valid input{border-color:var(--pass);}
.field-err{display:none;color:var(--fail);font-size:12px;line-height:1.4;margin:6px 0 0;}
.auth-modal .field.invalid .field-err{display:block;}

/* password */
.pass-wrap{position:relative;}
.pass-wrap input{padding-right:62px;}
.pass-toggle{position:absolute;top:50%;right:8px;transform:translateY(-50%);border:none;
  background:var(--surface-3);color:var(--text-soft);cursor:pointer;border-radius:7px;
  padding:5px 9px;font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;
  letter-spacing:.06em;transition:color var(--t-fast),background var(--t-fast);}
.pass-toggle:hover{color:var(--text);background:var(--border-strong);}
.pass-meter{display:none;height:4px;border-radius:999px;background:var(--surface-3);margin-top:8px;overflow:hidden;}
.auth-modal.mode-signup .pass-meter{display:block;}
#passBar{display:block;height:100%;width:0;border-radius:999px;background:var(--fail);
  transition:width var(--t) var(--ease),background var(--t) var(--ease);}
#passBar.ok{background:var(--warn);} #passBar.good{background:var(--pass);}
.pass-hint{display:none;font-size:11.5px;color:var(--text-faint);margin:6px 0 0;line-height:1.4;}
.auth-modal.mode-signup .pass-hint{display:block;}
.auth-modal .field.invalid .pass-hint{display:none;}

/* prominent submit */
.auth-submit{position:relative;margin-top:18px;font-size:14.5px;padding:13px 18px;}
.auth-submit[disabled]{opacity:.65;cursor:progress;}
.auth-spinner{display:none;width:14px;height:14px;margin-left:8px;border-radius:50%;
  border:2px solid rgba(255,255,255,.4);border-top-color:#fff;vertical-align:-2px;
  animation:authSpin .6s linear infinite;}
.auth-submit.loading .auth-spinner{display:inline-block;}
@keyframes authSpin{to{transform:rotate(360deg);}}

@media (prefers-reduced-motion:reduce){
  .auth-tab-ind{transition:none;} .auth-spinner{animation-duration:1.4s;}
}

/* ===== EDIT MODE ======================================================= */
.edit-only{display:none;}
body.editing .edit-only{display:inline-flex;}
.edit-banner{display:none;background:var(--warn-bg);border:1px solid var(--warn);color:var(--warn);border-radius:var(--r);padding:12px 15px;font-size:13px;margin:14px 0;line-height:1.5;}
body.editing .edit-banner{display:block;}
.mini-btn{font-family:var(--font-mono);font-size:10px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-soft);border-radius:6px;padding:3px 9px;cursor:pointer;}
.mini-btn.del{color:var(--danger);}
body.editing [contenteditable]{outline:1px dashed var(--idle);border-radius:4px;}
textarea.prompt-edit{display:none;width:calc(100% - 26px);margin:0 13px 13px;background:rgba(255,255,255,.06);color:var(--code-text);border:1px solid var(--code-line);border-radius:8px;font-family:var(--font-mono);font-size:11.5px;line-height:1.6;padding:11px;min-height:140px;resize:vertical;}
body.editing textarea.prompt-edit{display:block;}
body.editing .prompt pre{display:none;}
.add-module-row{display:none;text-align:center;margin:6px 0 18px;}
body.editing .add-module-row{display:block;}

.faq h3{font-family:var(--font-display);font-size:15px;font-weight:600;margin:18px 0 4px;}
.faq p{font-size:13.5px;color:var(--text-soft);line-height:1.65;margin:0 0 4px;}

/* ===== FAQ ACCORDION (homepage) ======================================= */
.faq-list{display:flex;flex-direction:column;gap:10px;}
.faq-q{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  box-shadow:var(--shadow-sm);transition:border-color var(--t-fast),box-shadow var(--t-fast);}
.faq-q:hover{border-color:var(--border-strong);}
.faq-q[open]{border-color:var(--accent);box-shadow:var(--shadow);}
.faq-q summary{list-style:none;cursor:pointer;padding:16px 18px;font-family:var(--font-display);
  font-size:15px;font-weight:600;color:var(--text);display:flex;justify-content:space-between;
  align-items:center;gap:14px;transition:color var(--t-fast);}
.faq-q summary::-webkit-details-marker{display:none;}
.faq-q summary:hover{color:var(--accent-deep);}
.faq-q summary::after{content:"+";font-family:var(--font-mono);font-size:20px;font-weight:400;
  color:var(--accent);flex:0 0 auto;line-height:1;transition:transform var(--t-fast) var(--ease);}
.faq-q[open] summary::after{transform:rotate(45deg);}
.faq-q > p{margin:0;padding:0 18px 16px;font-size:13.5px;line-height:1.72;color:var(--text-soft);
  animation:fadeIn .22s var(--ease) both;}
.faq-q > p b{color:var(--text);font-weight:600;}

/* Hamburger + mobile-nav CSS now lives in theme.css (single source, shared by all pages). */

/* ================= RESPONSIVE ========================================= */
@media(max-width:900px){
  .hero-band{padding:52px 20px 100px;}
  .hero-stats{gap:26px;}
  .rung{min-width:calc(50% - 5px);flex:0 0 calc(50% - 5px);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .bp-stub{width:180px;}
}

@media(max-width:700px){
  .hero-band{padding:40px 16px 92px;}
  .hero-band h1{font-size:30px;line-height:1.12;}
  .hero-sub{font-size:15px;}
  .cta-row{flex-direction:column;}
  .cta-row .btn{width:100%;padding:14px 18px;}
  .hero-stats{gap:0;justify-content:space-between;width:100%;margin-top:30px;}
  .hstat{flex:1;min-width:70px;}
  .hstat .hn{font-size:23px;}
  .hstat .hl{font-size:10.5px;}

  .wrap{padding:0 16px 70px;}
  .bp{margin:-64px auto 22px;border-radius:var(--r-lg);}
  .bp-main{padding:18px;}
  .bp-code{font-size:19px;}
  .bp-route{gap:12px;}
  .bp-stub{width:auto;flex-direction:row;align-items:center;justify-content:space-between;padding:16px 18px;gap:10px;}
  .bp-stub > div{display:flex;align-items:center;gap:12px;flex-wrap:wrap;width:100%;}
  .bp-stub .big{font-size:27px;}
  .bp-chal{margin-top:0;}

  .rung{min-width:100%;flex:0 0 100%;}
  .card{padding:18px;}
  h2{font-size:18px;}
  .section-head h2{font-size:21px;}
  .m-head{padding:15px;gap:8px;row-gap:6px;}
  .m-title{min-width:100%;order:3;font-size:15px;}
  .lvl-tag{order:1;} .m-weeks{order:2;margin-left:auto;margin-right:24px;}
  .m-bar{order:4;width:100%;margin-top:2px;}
  .chev{order:5;position:absolute;right:16px;top:17px;}
  .goal,.item,.section-lbl,.prompt,.qa-item,.qa-filters,.lesson{margin-left:14px;margin-right:14px;}
  .item{padding-left:6px;padding-right:6px;font-size:14px;line-height:1.6;}
  .box{width:22px;height:22px;flex-basis:22px;}
  .steps{grid-template-columns:1fr;}
  .qa-q{flex-direction:column;gap:7px;padding:13px;}
  .qa-cat{align-self:flex-start;}
  .prompt pre{font-size:11px;padding:12px;}
  .modal{padding:22px 18px;}
  .modal h3{font-size:20px;}
  .modal input{padding:13px 12px;font-size:16px;}   /* 16px stops iOS zoom */
  .toast{left:16px;right:16px;transform:none;text-align:center;bottom:16px;}
  .toast.show{transform:translateY(0);}
}

@media(max-width:380px){
  .hero-band h1{font-size:26px;}
  .bp-code{font-size:17px;}
  .hstat .hn{font-size:20px;}
  .m-weeks{font-size:9.5px;}
  .lvl-tag{font-size:9px;padding:3px 7px;}
}

@media(max-height:500px) and (orientation:landscape){
  .hero-band{padding:26px 20px 60px;}
  .modal{max-height:92vh;overflow-y:auto;}
}

@media(hover:none){
  .rung:hover{transform:none;box-shadow:none;}
  .step:hover{transform:none;}
  .m-head:hover{background:none;}
  .m-head:active{background:var(--surface-2);}
}

/* ================= HOMEPAGE MARKETING SECTIONS ======================= */
.who h2{font-size:22px;}

/* pillars */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(224px,1fr));gap:14px;margin-bottom:8px;}
.feat{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px;
  box-shadow:var(--shadow-sm);transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t-fast);}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--border-strong);}
.feat .fi{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:19px;color:#fff;background:var(--grad-brand);box-shadow:var(--shadow-accent);margin-bottom:14px;}
.feat h3{font-family:var(--font-display);font-weight:700;font-size:16px;margin:0 0 6px;}
.feat p{font-size:13px;color:var(--text-soft);line-height:1.6;margin:0;}

/* how it works */
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.how-step{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px 20px 20px;box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform var(--t) var(--ease),border-color var(--t-fast);}
.how-step:hover{transform:translateY(-3px);border-color:var(--accent);}
.how-step .hs-n{font-family:var(--font-display);font-weight:800;font-size:44px;line-height:1;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  opacity:.9;display:block;margin-bottom:10px;}
.how-step h3{font-family:var(--font-display);font-weight:700;font-size:16px;margin:0 0 6px;}
.how-step p{font-size:13px;color:var(--text-soft);line-height:1.6;margin:0;}

/* why checklist */
.checks{display:grid;gap:12px;}
.check{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.6;color:var(--text-soft);}
.check b{color:var(--text);font-weight:600;}
.check .ck{flex:0 0 24px;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--pass);background:var(--pass-bg);margin-top:1px;}

/* code lab / tools promo */
.promo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;}
.promo{display:block;text-decoration:none;color:inherit;position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;
  box-shadow:var(--shadow-sm);transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t-fast);}
.promo::after{content:"";position:absolute;inset:0;background:var(--grad-brand-soft);opacity:0;transition:opacity var(--t);pointer-events:none;}
.promo:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--accent);}
.promo:hover::after{opacity:1;}
.promo > *{position:relative;z-index:1;}
.promo-badge{display:inline-block;font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.04em;
  color:var(--accent-deep);background:var(--accent-soft);border-radius:999px;padding:5px 12px;margin-bottom:12px;}
.promo h3{font-family:var(--font-display);font-weight:700;font-size:17px;margin:0 0 6px;}
.promo p{font-size:13px;color:var(--text-soft);line-height:1.6;margin:0 0 12px;}
.promo-go{font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--accent-deep);}

/* final CTA band */
.home-cta{position:relative;overflow:hidden;text-align:center;margin:34px 0 8px;padding:44px 24px;
  border-radius:var(--r-xl);color:#fff;box-shadow:var(--shadow-lg);
  background:radial-gradient(120% 140% at 100% 0%,rgba(45,212,207,.5),transparent 55%),
             radial-gradient(120% 140% at 0% 100%,rgba(124,107,240,.6),transparent 55%),
             linear-gradient(135deg,#171331,#0F1430);}
.home-cta h2{font-family:var(--font-display);font-weight:800;font-size:clamp(24px,4vw,32px);margin:0 0 8px;letter-spacing:-.02em;}
.home-cta p{color:rgba(255,255,255,.78);font-size:15px;line-height:1.6;max-width:520px;margin:0 auto 22px;}
.home-cta .btn.ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3);}
.home-cta .btn.ghost:hover{border-color:#fff;background:rgba(255,255,255,.14);color:#fff;}

@media(max-width:760px){
  .how{grid-template-columns:1fr;}
  .promo-grid{grid-template-columns:1fr;}
}
@media(max-width:700px){
  .home-cta{padding:36px 20px;border-radius:var(--r-lg);}
  .home-cta .cta-row{flex-direction:column;}
  .home-cta .cta-row .btn{width:100%;}
}
@media(hover:none){
  .feat:hover,.how-step:hover,.promo:hover{transform:none;}
  .promo:hover::after{opacity:0;}
}