/* Valurio — Knowledge Base page styles
   KB-specific components, ported from the Claude Design handoff and
   adapted to the live site (design.css tokens, single-page layout,
   sticky in-page jump-nav with scrollspy). Nav/footer come from the
   shared site pattern (Tailwind), not from here. */

/* ─────────── Hero ─────────── */
.kb-hero{position:relative;overflow:hidden;padding:clamp(2.5rem,7vw,5rem) 0 clamp(1.5rem,4vw,2.5rem);}
.kb-hero-inner{max-width:1100px;margin:0 auto;position:relative;z-index:2;padding:0 clamp(1.25rem,5vw,3rem);}
.kb-blob{position:absolute;border-radius:9999px;filter:blur(80px);pointer-events:none;z-index:1;}
.kb-hero h1{
  font-family:var(--vl-font-headline);font-weight:900;
  font-size:clamp(2.4rem,6vw,4rem);letter-spacing:-0.03em;line-height:1.02;
  color:var(--vl-on-surface);margin:1.1rem 0;
}
.kb-hero h1 .grad{background:var(--vl-gradient-primary);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;}
.kb-hero .lead{font-size:clamp(1.05rem,2vw,1.3rem);color:var(--vl-on-surface-variant);max-width:620px;line-height:1.55;margin:0;}

/* ─────────── Category tabs (all visible, wrap to lines) ─────────── */
.kb-tabs-wrap{ padding:0.5rem 0 0.25rem; margin-bottom:0.5rem; }
.kb-tabs{
  max-width:1100px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:center;
  gap:0.55rem;padding:0 clamp(1.25rem,5vw,3rem);
}
.kb-tab{
  display:inline-flex;align-items:center;gap:0.5rem;
  font-family:var(--vl-font-headline);font-weight:700;font-size:0.875rem;
  color:var(--vl-on-surface-variant);background:#fff;text-decoration:none;
  border:0;border-radius:var(--vl-radius-pill);padding:0.55rem 1rem;cursor:pointer;
  box-shadow:var(--vl-shadow-soft);white-space:nowrap;
  transition:transform .18s var(--vl-ease-out),color .2s,background .2s,box-shadow .2s;
}
.kb-tab .kb-ico{width:1.1em;height:1.1em;}
.kb-tab:hover{transform:translateY(-2px);color:var(--vl-primary);}
.kb-tab.active{background:var(--vl-gradient-primary);color:#fff;box-shadow:0 10px 24px -8px rgba(159,64,45,.5);}
.kb-tab.active .kb-ico{color:#fff;}
.kb-tab .soon,.kb-tab .draft{
  font-family:var(--vl-font-body);font-size:0.5625rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;border-radius:var(--vl-radius-pill);padding:2px 7px;
}
.kb-tab .soon{background:var(--vl-primary-tint);color:var(--vl-primary);}
.kb-tab .draft{background:rgba(86,66,62,.13);color:var(--vl-on-surface-muted);}
.kb-tab.active .soon,.kb-tab.active .draft{background:rgba(255,255,255,.24);color:#fff;}

/* Mobile category dropdown (shown <=720px) */
.kb-tabs-select{
  display:none;width:100%;max-width:520px;margin:0 auto;
  font-family:var(--vl-font-headline);font-weight:700;font-size:0.95rem;color:var(--vl-on-surface);
  background-color:#fff;border:1.5px solid var(--vl-outline-variant);border-radius:var(--vl-radius-lg);
  padding:0.8rem 2.6rem 0.8rem 1rem;cursor:pointer;-webkit-appearance:none;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='none' stroke='%239f402d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 0.9rem center;background-size:1.1rem;
}
.kb-tabs-select:focus{outline:none;border-color:var(--vl-primary);box-shadow:0 0 0 3px rgba(159,64,45,.12);}

/* ─────────── Main + sections ─────────── */
.kb-main{max-width:1100px;margin:0 auto;padding:clamp(1.5rem,4vw,2.75rem) clamp(1.25rem,5vw,3rem) 6rem;position:relative;z-index:2;}
.kb-panel{display:none;}
.kb-panel.active{display:block;padding-top:0.5rem;animation:kbIn .4s var(--vl-ease-out) both;}
@keyframes kbIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}

.kb-panel-head{margin-bottom:1.6rem;}
.kb-panel-head .vl-tag{margin-bottom:0.85rem;}
.kb-panel-head h2{
  font-family:var(--vl-font-headline);font-weight:900;font-size:clamp(1.9rem,4vw,2.6rem);
  letter-spacing:-0.03em;color:var(--vl-on-surface);line-height:1.08;margin:0 0 0.6rem;
}
.kb-panel-head .intro{font-size:1.05rem;color:var(--vl-on-surface-variant);max-width:640px;margin:0;line-height:1.55;}

/* Section card */
.kb-section{
  background:var(--vl-surface-card);border-radius:var(--vl-radius-2xl);
  padding:clamp(1.5rem,3.5vw,2.4rem);box-shadow:var(--vl-shadow-card);margin-bottom:1.4rem;
}
.kb-section:last-child{margin-bottom:0;}
.kb-sec-head{display:flex;align-items:center;gap:0.9rem;margin-bottom:1.5rem;}
.kb-sec-ic{
  width:46px;height:46px;flex:0 0 auto;border-radius:var(--vl-radius-lg);
  background:var(--vl-primary-tint);display:flex;align-items:center;justify-content:center;
}
.kb-sec-ic .kb-ico{width:24px;height:24px;color:var(--vl-primary);}
.kb-sec-head .label{font-family:var(--vl-font-body);font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--vl-on-surface-muted);display:block;margin-bottom:2px;}
.kb-sec-head > div:last-child{flex:1 1 auto;min-width:0;}
.kb-sec-head h3{font-family:var(--vl-font-headline);font-weight:900;font-size:1.4rem;letter-spacing:-0.02em;color:var(--vl-on-surface);margin:0;line-height:1.1;}

/* Numbered tip rows */
.kb-tips{display:flex;flex-direction:column;gap:1.25rem;}
.kb-tip{display:grid;grid-template-columns:34px 1fr;gap:1rem;align-items:start;}
.kb-num{
  width:34px;height:34px;border-radius:var(--vl-radius-pill);background:var(--vl-primary-tint);
  color:var(--vl-primary);font-family:var(--vl-font-headline);font-weight:800;font-size:.95rem;
  display:flex;align-items:center;justify-content:center;
}
.kb-tip-body{font-size:1.02rem;line-height:1.6;color:var(--vl-on-surface-variant);padding-top:3px;}
.kb-tip-body strong{color:var(--vl-on-surface);font-weight:700;}
.kb-tip-body .em{color:var(--vl-primary);font-weight:700;}

/* Decision matrix */
.kb-matrix{margin-top:0.9rem;display:flex;flex-direction:column;gap:0.65rem;}
.kb-matrix-row{
  display:flex;align-items:center;gap:0.9rem;flex-wrap:wrap;
  background:var(--vl-surface-low);border-radius:var(--vl-radius-lg);padding:0.8rem 1rem;
}
.kb-finish{
  font-family:var(--vl-font-headline);font-weight:800;font-size:.92rem;color:#fff;
  background:#3a3835;border-radius:var(--vl-radius-pill);padding:5px 14px;flex:0 0 auto;
}
.kb-matrix-row .arrow{color:var(--vl-primary-container);width:18px;height:18px;flex:0 0 auto;}
.kb-matrix-row .sol{font-size:.98rem;color:var(--vl-on-surface-variant);}
.kb-matrix-row .sol strong{color:var(--vl-on-surface);font-weight:700;}

/* Gear picks */
.kb-picks{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:0.4rem;}
.kb-pick{border-radius:var(--vl-radius-xl);padding:1.4rem;position:relative;background:var(--vl-surface-low);}
.kb-pick.best{background:var(--vl-primary-tint);}
.kb-pick .ptag{display:inline-block;font-family:var(--vl-font-body);font-size:.62rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--vl-on-surface-muted);margin-bottom:0.5rem;}
.kb-pick.best .ptag{color:var(--vl-primary);}
.kb-pick h4{font-family:var(--vl-font-headline);font-weight:900;font-size:1.1rem;color:var(--vl-on-surface);margin:0 0 0.4rem;letter-spacing:-0.01em;}
.kb-pick p{font-size:.95rem;line-height:1.5;color:var(--vl-on-surface-variant);margin:0;}

/* Lead callout */
.kb-callout{
  display:flex;gap:1rem;align-items:flex-start;
  background:var(--vl-primary-tint);border-radius:var(--vl-radius-xl);padding:1.4rem 1.5rem;margin-bottom:1.4rem;
}
.kb-callout .kb-ico{color:var(--vl-primary);width:26px;height:26px;flex:0 0 auto;margin-top:1px;}
.kb-callout p{margin:0;font-size:1.08rem;line-height:1.5;color:var(--vl-on-surface);}
.kb-callout p strong{font-weight:800;}

/* Caution callout (safety) */
.kb-caution{
  display:flex;gap:1rem;align-items:flex-start;
  background:rgba(244,63,94,.07);border:1px solid rgba(244,63,94,.18);
  border-radius:var(--vl-radius-xl);padding:1.4rem 1.5rem;margin-bottom:1.4rem;
}
.kb-caution .kb-ico{color:var(--vl-danger);width:26px;height:26px;flex:0 0 auto;margin-top:1px;}
.kb-caution p{margin:0;font-size:1.02rem;line-height:1.5;color:var(--vl-on-surface);}
.kb-caution p strong{font-weight:800;color:var(--vl-danger);}

/* Basics list */
.kb-basics{display:flex;flex-direction:column;gap:1rem;}
.kb-basic{display:grid;grid-template-columns:30px 1fr;gap:0.9rem;align-items:start;}
.kb-basic .dot{width:30px;height:30px;border-radius:var(--vl-radius-pill);background:var(--vl-primary-tint);display:flex;align-items:center;justify-content:center;}
.kb-basic .dot .kb-ico{width:18px;height:18px;color:var(--vl-primary);}
.kb-basic-body{font-size:1.02rem;line-height:1.55;color:var(--vl-on-surface-variant);padding-top:4px;}
.kb-basic-body strong{color:var(--vl-on-surface);font-weight:700;}

/* Checklist (Pickup) */
.kb-progress-card{
  background:var(--vl-surface-card);border-radius:var(--vl-radius-2xl);
  padding:1.4rem 1.6rem;box-shadow:var(--vl-shadow-card);margin-bottom:1.4rem;
  display:flex;align-items:center;gap:1.4rem;flex-wrap:wrap;
}
.kb-progress-meta{flex:1 1 240px;}
.kb-progress-meta .count{font-family:var(--vl-font-headline);font-weight:900;font-size:1.15rem;color:var(--vl-on-surface);letter-spacing:-0.01em;}
.kb-progress-meta .count b{color:var(--vl-primary);}
.kb-progress-track{height:8px;border-radius:var(--vl-radius-pill);background:var(--vl-surface-high);overflow:hidden;margin-top:0.6rem;}
.kb-progress-fill{height:100%;width:0;border-radius:var(--vl-radius-pill);background:var(--vl-gradient-primary);transition:width .4s var(--vl-ease-out);}
.kb-reset{
  font-family:var(--vl-font-headline);font-weight:700;font-size:.8125rem;
  color:var(--vl-on-surface-variant);background:transparent;border:2px solid rgba(221,192,186,.7);
  border-radius:var(--vl-radius-md);padding:0.55rem 1.05rem;cursor:pointer;
  display:inline-flex;align-items:center;gap:0.45rem;transition:border-color .2s,color .2s;
}
.kb-reset:hover{border-color:var(--vl-primary);color:var(--vl-primary);}
.kb-reset .kb-ico{width:17px;height:17px;}

.kb-group-label{font-family:var(--vl-font-body);font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--vl-on-surface-muted);margin:1.9rem 0 0.9rem;}
.kb-group-label:first-child{margin-top:0.25rem;}
.kb-checks{display:flex;flex-direction:column;gap:0.75rem;}
.kb-check{
  display:grid;grid-template-columns:32px 1fr;gap:1rem;align-items:start;
  background:var(--vl-surface-card);border-radius:var(--vl-radius-xl);
  padding:1.1rem 1.25rem;box-shadow:var(--vl-shadow-soft);cursor:pointer;
  transition:transform .15s var(--vl-ease-out),box-shadow .2s;-webkit-tap-highlight-color:transparent;
}
.kb-check:hover{transform:translateY(-2px);box-shadow:var(--vl-shadow-card);}
.kb-check input{position:absolute;opacity:0;width:0;height:0;}
.kb-box{
  width:32px;height:32px;border-radius:var(--vl-radius-md);
  border:3px solid var(--vl-outline-variant);background:#fff;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px;
  transition:border-color .2s,background .2s;
}
.kb-box .kb-ico{width:22px;height:22px;color:#fff;transform:scale(0);transition:transform .2s cubic-bezier(0.1,0.9,0.2,1);}
.kb-check-body{font-size:1.02rem;line-height:1.55;color:var(--vl-on-surface-variant);padding-top:4px;transition:color .2s,opacity .2s;}
.kb-check-body strong{color:var(--vl-on-surface);font-weight:700;}
.kb-check input:checked + .kb-box{border-color:var(--vl-primary);background:var(--vl-gradient-primary);}
.kb-check input:checked + .kb-box .kb-ico{transform:scale(1);}
.kb-check.done{background:var(--vl-surface-low);box-shadow:none;}
.kb-check.done .kb-check-body{opacity:.5;}

/* Pros & cons */
.kb-proscon{display:grid;grid-template-columns:1fr 1fr;gap:0.9rem;margin-top:1.5rem;}
.kb-pc{border-radius:var(--vl-radius-lg);padding:1.1rem 1.25rem;}
.kb-pc.pros{background:rgba(16,185,129,.07);}
.kb-pc.cons{background:rgba(86,66,62,.055);}
.kb-pc-head{display:flex;align-items:center;gap:0.55rem;margin-bottom:0.8rem;}
.kb-pc-badge{width:26px;height:26px;border-radius:var(--vl-radius-sm);display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.kb-pc-badge .kb-ico{width:15px;height:15px;}
.kb-pc.pros .kb-pc-badge{background:rgba(16,185,129,.15);color:var(--vl-success);}
.kb-pc.cons .kb-pc-badge{background:rgba(86,66,62,.12);color:var(--vl-on-surface-muted);}
.kb-pc-head .lbl{font-family:var(--vl-font-body);font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;}
.kb-pc.pros .lbl{color:var(--vl-success);}
.kb-pc.cons .lbl{color:var(--vl-on-surface-muted);}
.kb-pc-list{display:flex;flex-direction:column;gap:0.65rem;}
.kb-pc-item{display:flex;gap:0.65rem;align-items:flex-start;font-size:.98rem;line-height:1.45;color:var(--vl-on-surface-variant);}
.kb-pc-item .mk{flex:0 0 auto;margin-top:3px;}
.kb-pc-item .mk .kb-ico{width:14px;height:14px;}
.kb-pc.pros .mk{color:var(--vl-success);}
.kb-pc.cons .mk{color:var(--vl-on-surface-muted);}

/* Option blocks (multi-way comparisons) */
.kb-opt{margin-bottom:1.9rem;}
.kb-opt:last-child{margin-bottom:0;}
.kb-opt-head{display:flex;align-items:center;gap:0.7rem;margin-bottom:0.45rem;flex-wrap:wrap;}
.kb-opt-head .nm{font-family:var(--vl-font-headline);font-weight:900;font-size:1.18rem;color:var(--vl-on-surface);letter-spacing:-.01em;}
.kb-opt-head .badge2{font-family:var(--vl-font-body);font-size:.6rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;background:var(--vl-primary-tint);color:var(--vl-primary);border-radius:var(--vl-radius-pill);padding:3px 10px;}
.kb-opt .od{font-size:.97rem;line-height:1.5;color:var(--vl-on-surface-variant);margin:0;}
.kb-opt .kb-proscon{margin-top:0.9rem;}

/* Sub-heading inside a section (e.g. Priming / Painting) */
.kb-subhead{font-family:var(--vl-font-headline);font-weight:800;font-size:1.05rem;color:var(--vl-primary);letter-spacing:-.01em;margin:0 0 1rem;display:flex;align-items:center;gap:0.5rem;}
.kb-subhead .kb-ico{width:18px;height:18px;}
.kb-section + .kb-section.kb-step{margin-top:1.4rem;}

/* Draft + needs-input notes */
.kb-draftbar{display:flex;gap:0.8rem;align-items:flex-start;background:var(--vl-surface-low);border:1.5px dashed var(--vl-outline-variant);border-radius:var(--vl-radius-xl);padding:1rem 1.25rem;margin-bottom:1.5rem;}
.kb-draftbar .kb-ico{color:var(--vl-primary);width:20px;height:20px;flex:0 0 auto;margin-top:2px;}
.kb-draftbar .db-body{font-size:.95rem;line-height:1.5;color:var(--vl-on-surface-variant);}
.kb-draftbar .db-body .ttl{font-family:var(--vl-font-headline);font-weight:800;color:var(--vl-on-surface);display:block;margin-bottom:2px;font-size:.98rem;letter-spacing:-.01em;}

.kb-flag{display:flex;gap:0.7rem;align-items:flex-start;margin-top:1.25rem;background:rgba(159,64,45,.05);border-radius:var(--vl-radius-lg);padding:0.8rem 1rem;}
.kb-flag .kb-ico{color:var(--vl-primary);width:17px;height:17px;flex:0 0 auto;margin-top:2px;}
.kb-flag .ft{font-size:.92rem;line-height:1.45;color:var(--vl-on-surface-variant);}
.kb-flag .ft b{color:var(--vl-primary);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.7rem;display:block;margin-bottom:3px;}

/* Coming-soon card */
.kb-soon-card{background:var(--vl-surface-card);border-radius:var(--vl-radius-2xl);box-shadow:var(--vl-shadow-card);padding:3.2rem 2.5rem;text-align:center;}
.kb-soon-ic{width:72px;height:72px;border-radius:var(--vl-radius-xl);margin:0 auto 1.4rem;background:var(--vl-primary-tint);display:flex;align-items:center;justify-content:center;}
.kb-soon-ic .kb-ico{width:36px;height:36px;color:var(--vl-primary);}
.kb-soon-card h3{font-family:var(--vl-font-headline);font-weight:900;font-size:1.6rem;letter-spacing:-0.02em;color:var(--vl-on-surface);margin:0 0 0.6rem;}
.kb-soon-card p{font-size:1.02rem;color:var(--vl-on-surface-variant);max-width:420px;margin:0 auto;line-height:1.55;}
.kb-soon-pill{margin-top:1.25rem;}

/* Two coming-soon cards side by side */
.kb-soon-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;}
.kb-soon-grid .kb-soon-card{padding:2.5rem 1.75rem;}

/* Closing CTA (reuses brand gradient) */
.kb-cta{
  background:var(--vl-gradient-primary);border-radius:var(--vl-radius-2xl);
  padding:clamp(2.4rem,5vw,3.5rem) 2rem;text-align:center;position:relative;overflow:hidden;
  box-shadow:var(--vl-shadow-cta);margin-top:2.5rem;
}
.kb-cta::before{content:"";position:absolute;top:-3rem;right:-3rem;width:18rem;height:18rem;border-radius:50%;background:rgba(255,255,255,.10);filter:blur(40px);pointer-events:none;}
.kb-cta h2{font-family:var(--vl-font-headline);font-weight:900;font-size:clamp(1.6rem,3.5vw,2.3rem);letter-spacing:-0.03em;line-height:1.1;color:#fff;margin:0 0 0.8rem;position:relative;z-index:1;}
.kb-cta p{font-family:var(--vl-font-body);color:rgba(255,255,255,.88);max-width:42ch;margin:0 auto 1.5rem;font-size:1rem;line-height:1.55;position:relative;z-index:1;}
.kb-cta-row{display:flex;gap:0.8rem;justify-content:center;flex-wrap:wrap;position:relative;z-index:1;}
.kb-cta .btn-solid{display:inline-flex;align-items:center;gap:0.5rem;background:#fff;color:var(--vl-primary);font-family:var(--vl-font-headline);font-weight:700;font-size:0.95rem;padding:0.85rem 2rem;border-radius:var(--vl-radius-md);text-decoration:none;box-shadow:0 4px 20px rgba(0,0,0,.15);transition:transform .2s var(--vl-ease-smooth);cursor:pointer;border:0;}
.kb-cta .btn-solid:hover{transform:translateY(-2px);}
.kb-cta .btn-ghost{display:inline-flex;align-items:center;gap:0.5rem;background:rgba(255,255,255,.12);color:#fff;font-family:var(--vl-font-headline);font-weight:700;font-size:0.95rem;padding:0.85rem 1.75rem;border-radius:var(--vl-radius-md);text-decoration:none;border:1.5px solid rgba(255,255,255,.4);transition:background .2s;}
.kb-cta .btn-ghost:hover{background:rgba(255,255,255,.2);}
.kb-cta .btn-solid .kb-ico,.kb-cta .btn-ghost .kb-ico{width:1rem;height:1rem;}

/* Inline SVG icon base */
svg.kb-ico{display:inline-block;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle;}

@media (max-width:720px){
  .kb-picks{grid-template-columns:1fr;}
  .kb-proscon{grid-template-columns:1fr;}
  .kb-soon-grid{grid-template-columns:1fr;}
  .kb-tabs{display:none;}
  .kb-tabs-select{display:block;}
  .kb-tabs-wrap{padding-left:clamp(1.25rem,5vw,3rem);padding-right:clamp(1.25rem,5vw,3rem);}
}