/* ============ GUIDE LAYOUT ============ */
.guide-layout{display:grid;grid-template-columns:1fr;gap:0;}

/* Mobile / tablet pill stepper — primary phase nav on phones. Links between pages. */
.stepper{
  display:flex;gap:8px;overflow-x:auto;padding:12px 20px;min-width:0;
  position:sticky;top:var(--header-h);z-index:80;
  background:color-mix(in srgb, var(--bg) 94%, transparent);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);scrollbar-width:none;-webkit-overflow-scrolling:touch;
  margin:0 -20px 28px;
}
.stepper::-webkit-scrollbar{display:none;}
.stepper-pill{
  flex-shrink:0;display:flex;align-items:center;gap:7px;min-height:38px;padding:8px 14px;border-radius:99px;
  border:1.5px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-faint);transition:all .2s ease;
  background:var(--bg-card);text-decoration:none;
}
.stepper-pill:active{transform:scale(0.96);}
.stepper-pill .num{width:18px;height:18px;border-radius:50%;background:var(--line);color:var(--bg-card);display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;flex-shrink:0;}
.stepper-pill.active{border-color:var(--accent);color:var(--accent);}
.stepper-pill.active .num{background:var(--accent);color:#fff;}
.stepper-pill.complete .num{background:var(--accent);color:#fff;}
.stepper-pill.complete .num::after{content:"✓";}
@media(min-width:600px){ .stepper{margin:0 -24px 32px;} }
@media(min-width:980px){ .stepper{display:none;} }

/* Desktop rail */
.rail{display:none;}
@media(min-width:980px){
  .guide-layout{grid-template-columns:220px 1fr;gap:40px;}
  .rail{display:block;position:sticky;top:calc(var(--header-h) + 32px);height:fit-content;}
  .rail-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
  .rail-list li a{
    display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;text-decoration:none;
    font-size:13.5px;font-weight:600;color:var(--ink-faint);transition:all .2s ease;border:1px solid transparent;
  }
  .rail-list li a .num{width:24px;height:24px;border-radius:50%;background:var(--bg-soft);border:2px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;color:var(--ink-faint);flex-shrink:0;transition:all .2s ease;}
  .rail-list li a:hover{background:var(--bg-soft);color:var(--ink);}
  .rail-list li a.active{color:var(--accent);background:color-mix(in srgb, var(--accent) 9%, transparent);border-color:color-mix(in srgb, var(--accent) 25%, transparent);}
  .rail-list li a.active .num{border-color:var(--accent);color:var(--accent);}
  .rail-list li a.complete .num{background:var(--accent);border-color:var(--accent);color:#fff;}
  .rail-list li a.complete .num::after{content:"✓";}
  .rail-divider{height:1px;background:var(--line);margin:12px 4px;}
  .rail-list.rail-bonus li a .num{border-radius:8px;}
}

/* ============ PHASE HEADER ============ */
.phase-head{display:flex;align-items:flex-start;gap:12px;margin-bottom:20px;flex-wrap:wrap;}
.phase-num{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:14px;width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;flex-shrink:0;}
.phase-head h1{font-size:clamp(22px,6vw,34px);}
.phase-head .eyebrow{color:var(--accent);margin-bottom:4px;}
.phase-progress{font-size:12.5px;color:var(--ink-faint);font-family:'JetBrains Mono',monospace;width:100%;margin-top:2px;}
@media(min-width:600px){ .phase-progress{width:auto;margin-left:auto;align-self:center;margin-top:0;} }
@media(min-width:760px){ .phase-head h1{font-size:clamp(24px,3.4vw,34px);} }

.phase-intro{color:var(--ink-soft);margin-bottom:18px;font-size:14.5px;max-width:600px;}

/* ============ PREV / NEXT NAV ============ */
.phase-pager{display:grid;grid-template-columns:1fr;gap:12px;margin-top:36px;}
.pager-link{display:flex;align-items:center;gap:12px;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-m);padding:16px 18px;text-decoration:none;color:inherit;transition:all .2s ease;}
.pager-link:hover{border-color:var(--ink-faint);box-shadow:var(--shadow-s);}
.pager-link.next{justify-content:flex-end;text-align:right;}
.pager-link .pager-arrow{width:18px;height:18px;color:var(--ink-faint);flex-shrink:0;}
.pager-link .pager-meta{font-size:11px;color:var(--ink-faint);font-family:'JetBrains Mono',monospace;text-transform:uppercase;letter-spacing:.04em;}
.pager-link .pager-title{font-size:14.5px;font-weight:700;margin-top:2px;}
@media(min-width:640px){ .phase-pager{grid-template-columns:1fr 1fr;} }

/* ============ CHECKLIST SUMMARY CARD (guide hub) ============ */
.overview-grid{display:grid;grid-template-columns:1fr;gap:14px;}
@media(min-width:700px){ .overview-grid{grid-template-columns:repeat(2,1fr);} }
@media(min-width:1080px){ .overview-grid{grid-template-columns:repeat(4,1fr);} }