/* ── agentlens shared base stylesheet ───────────────────────────────────────
   All guide pages (orchestration, engineering, evaluation, …) link this file.
   Each page defines --accent in its own <style> block to set its theme colour.
   Default accent = blue (orchestration & engineering).
   ─────────────────────────────────────────────────────────────────────────── */

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

/* ── DESIGN TOKENS ─────────────────────────────────────────────────────────── */
:root{
  --bg:#0d1117;--bg2:#161b22;--text:#c9d1d9;--dim:#8b949e;
  --blue:#58a6ff;--green:#3fb950;--purple:#d2a8ff;
  --orange:#f0883e;--red:#f85149;--yellow:#e3b341;--border:#30363d;
  --heading:#ffffff;--hdr-bg:rgba(13,17,23,.92);--viz-bg:#0d1117;
  /* Page accent — overridden per page. Default = blue */
  --accent:var(--blue);
  --accent-subtle:rgba(88,166,255,.07);
  --accent-subtle2:rgba(88,166,255,.1);
  --accent-border:rgba(88,166,255,.3);
}

/* ── BASE ──────────────────────────────────────────────────────────────────── */
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'Georgia',serif;font-size:17px;line-height:1.75;overflow-x:hidden}

/* ── HEADER ────────────────────────────────────────────────────────────────── */
#hdr{position:fixed;top:0;left:0;right:0;height:52px;background:var(--hdr-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 2rem;z-index:200;font-size:13px;color:var(--dim);gap:.75rem}
#hdr span{color:var(--accent);font-family:'Courier New',monospace;font-weight:bold}
#hdr .sep{opacity:.3}
#hdr-scene{display:inline}

/* ── NAVBAR (for advanced/capstone pages) ──────────────────────────────────── */
.navbar{position:fixed;top:0;left:0;right:0;height:52px;background:var(--hdr-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);display:flex;align-items:center;z-index:200}
.nav-content{display:flex;align-items:center;justify-content:space-between;width:100%;padding:0 2rem;gap:.75rem}
.logo{color:var(--accent);font-family:'Courier New',monospace;font-size:13px;font-weight:bold;text-decoration:none;transition:color .2s}
.logo:hover{color:var(--heading)}
.nav-links{display:flex;align-items:center;gap:1.5rem;margin-left:auto}
.nav-link{color:var(--dim);font-size:13px;text-decoration:none;transition:color .2s}
.nav-link:hover{color:var(--accent)}

/* ── PROGRESS BAR ──────────────────────────────────────────────────────────── */
#prog{position:fixed;top:52px;left:0;height:2px;background:var(--accent);z-index:201;transition:width .1s linear;box-shadow:0 0 8px var(--accent)}

/* ── LOADING INDICATOR ─────────────────────────────────────────────────────────── */
#loader{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:999;opacity:0;pointer-events:none;transition:opacity .2s}
.loader-dot{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 1.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.2)}}

/* ── SKIP TO PART MENU ───────────────────────────────────────────────────────────── */
#skip-menu{position:fixed;bottom:2rem;right:2rem;z-index:100}
#skip-btn{background:var(--accent);color:var(--bg);border:none;border-radius:6px;padding:.5rem 1rem;font-family:'Courier New',monospace;font-size:.8rem;font-weight:bold;cursor:pointer;transition:opacity .2s;box-shadow:0 4px 12px rgba(0,0,0,.3)}
#skip-btn:hover{opacity:.9}
#skip-list{position:absolute;bottom:100%;right:0;background:var(--bg2);border:1px solid var(--border);border-radius:6px;min-width:140px;box-shadow:0 4px 12px rgba(0,0,0,.3);overflow:hidden}
#skip-list a{display:block;padding:.5rem 1rem;color:var(--dim);text-decoration:none;font-family:'Courier New',monospace;font-size:.75rem;border-bottom:1px solid var(--border);transition:background .2s,color .2s}
#skip-list a:last-child{border-bottom:none}
#skip-list a:hover{background:var(--accent-subtle);color:var(--accent)}
@media(max-width:640px){#skip-menu{bottom:1rem;right:1rem}#skip-btn{padding:.4rem .8rem;font-size:.7rem}}

/* ── HERO ──────────────────────────────────────────────────────────────────── */
#hero{height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;position:relative;overflow:hidden;padding-top:52px}
#hero-bg{position:absolute;inset:0;pointer-events:none}
#hero-content{position:relative;z-index:2;max-width:760px;padding:2rem}
#hero h1{font-size:clamp(2rem,5vw,3.8rem);font-weight:400;color:var(--heading);line-height:1.2;margin-bottom:1.2rem;letter-spacing:-.02em}
#hero h1 em{color:var(--accent);font-style:normal}
#hero .sub{font-size:1.05rem;color:var(--dim);margin-bottom:2rem;max-width:540px;margin-left:auto;margin-right:auto}

/* ── GUIDE CONTAINER (for advanced/capstone pages) ──────────────────────── */
.guide-container{padding-top:52px}

/* ── HERO CLASS-BASED (for advanced/capstone pages) ──────────────────────── */
.hero{height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;position:relative;overflow:hidden;padding-top:52px}
.hero-bg{position:absolute;inset:0;pointer-events:none;width:100%;height:100%;z-index:0;opacity:.8}
.hero-content{position:relative;z-index:10;max-width:760px;padding:2rem;display:flex;flex-direction:column;align-items:center;text-shadow:0 2px 4px rgba(0,0,0,.3)}
.guide-number{font-size:clamp(3rem,8vw,5rem);font-weight:300;color:var(--heading);margin-bottom:1rem;font-family:'Courier New',monospace;letter-spacing:.05em}
.hero h1{font-size:clamp(2rem,5vw,3.8rem);font-weight:400;color:var(--heading);line-height:1.2;margin-bottom:1.2rem;letter-spacing:-.02em;text-shadow:0 2px 4px rgba(0,0,0,.2)}
.hero h1 em{color:var(--accent);font-style:normal}
.hero p{font-size:1.05rem;color:var(--heading);margin-bottom:2rem;max-width:540px;text-shadow:0 1px 3px rgba(0,0,0,.2)}
.hero-badges{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-bottom:2.2rem}
.hero-badge{padding:.3rem .75rem;border-radius:999px;font-size:.75rem;font-family:'Courier New',monospace;border:1px solid}
.hb-green{color:var(--green);border-color:rgba(63,185,80,.35);background:rgba(63,185,80,.07)}
.hb-blue{color:var(--blue);border-color:rgba(88,166,255,.35);background:rgba(88,166,255,.07)}
.hb-purple{color:var(--purple);border-color:rgba(210,168,255,.35);background:rgba(210,168,255,.07)}
.hb-orange{color:var(--orange);border-color:rgba(240,136,62,.35);background:rgba(240,136,62,.07)}
.hb-cyan{color:#0ea5e9;border-color:rgba(14,165,233,.35);background:rgba(14,165,233,.07)}
.hb-amber{color:#fbbf24;border-color:rgba(251,191,36,.35);background:rgba(251,191,36,.07)}
.scroll-cue{display:flex;flex-direction:column;align-items:center;gap:.4rem;color:var(--dim);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;animation:bob 2s ease-in-out infinite}
.scroll-cue svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* ── SECTION DIVIDERS ──────────────────────────────────────────────────────── */
.section-break{padding:3.5rem 5rem 1.5rem;display:flex;align-items:center;gap:1rem}
.section-break .sb-label{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);font-family:'Courier New',monospace;white-space:nowrap}
.section-break .sb-label:last-of-type{font-size:1rem;color:var(--accent);font-weight:700;letter-spacing:.05em}
.section-break .sb-line{flex:1;height:1px;background:var(--border)}
.section-break .sb-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}

/* ── CHAPTER PILLS ─────────────────────────────────────────────────────────── */
.chapter-pill{display:inline-flex;align-items:center;gap:.5rem;padding:.3rem .8rem;border:1px solid var(--border);border-radius:999px;font-size:.7rem;letter-spacing:.15em;text-transform:uppercase;color:var(--text);font-family:'Courier New',monospace;margin-bottom:1rem}
.chapter-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ── SCROLLY LAYOUT ────────────────────────────────────────────────────────── */
#scrolly,#scrolly2,#scrolly3,#scrolly4,#scrolly5{display:flex;position:relative;align-items:flex-start}
#text-col{width:50%;padding:0 3.5rem 0 5rem;flex-shrink:0}
.text-col2,.text-col3,.text-col4,.text-col5{width:50%;padding:0 3.5rem 0 5rem;flex-shrink:0}
.step{min-height:85vh;display:flex;flex-direction:column;justify-content:center;padding:12vh 0;opacity:.25;transition:opacity .5s}
.step.active{opacity:1}
.step h2{font-size:clamp(1.4rem,2.2vw,2rem);font-weight:400;color:var(--heading);margin-bottom:1.2rem;line-height:1.3}
.step p{color:var(--text);margin-bottom:.9rem;font-size:.95rem}
.step p strong{color:var(--heading);font-weight:600}
.hl{color:var(--accent);font-style:italic}
.tag{display:inline-block;padding:.15rem .5rem;border-radius:4px;font-size:.78rem;font-family:'Courier New',monospace;margin:.15rem .1rem}
.t-b{background:rgba(88,166,255,.12);color:var(--blue);border:1px solid rgba(88,166,255,.25)}
.t-g{background:rgba(63,185,80,.12);color:var(--green);border:1px solid rgba(63,185,80,.25)}
.t-p{background:rgba(210,168,255,.12);color:var(--purple);border:1px solid rgba(210,168,255,.25)}
.t-o{background:rgba(240,136,62,.12);color:var(--orange);border:1px solid rgba(240,136,62,.25)}
.t-r{background:rgba(248,81,73,.12);color:var(--red);border:1px solid rgba(248,81,73,.25)}
.t-y{background:rgba(227,179,65,.12);color:var(--yellow);border:1px solid rgba(227,179,65,.25)}

/* ── CALLOUTS ──────────────────────────────────────────────────────────────── */
.callout{border:1px solid var(--border);border-left:4px solid var(--accent);background:var(--accent-subtle);padding:.75rem 1rem;border-radius:6px;margin:1rem 0;font-size:.88rem;color:var(--text)}
.callout.blue{border-left-color:var(--blue);background:rgba(88,166,255,.08)}
.callout.green{border-left-color:var(--green);background:rgba(63,185,80,.08)}
.callout.orange{border-left-color:var(--orange);background:rgba(240,136,62,.08)}
.callout.purple{border-left-color:var(--purple);background:rgba(210,168,255,.08)}
.callout.red{border-left-color:var(--red);background:rgba(248,81,73,.08)}
.callout strong{color:var(--heading);font-weight:600}

/* ── PATTERN BADGE ─────────────────────────────────────────────────────────── */
.pattern-badge{display:inline-flex;align-items:center;gap:.4rem;padding:.2rem .65rem;background:var(--accent-subtle2);border:1px solid var(--accent-border);border-radius:4px;font-size:.72rem;font-family:'Courier New',monospace;color:var(--accent);margin-bottom:.8rem}

/* ── INLINE MINI-VIZ ───────────────────────────────────────────────────────── */
.mini-viz{background:var(--bg2);border:1px solid var(--border);border-radius:8px;margin:1.2rem 0;padding:.5rem;overflow:hidden}
.mini-viz svg{display:block;width:100%;height:auto}
.mini-viz-label{font-size:.7rem;color:var(--dim);font-family:'Courier New',monospace;text-align:center;padding:.3rem 0 .1rem}

/* ── VIZ PANEL ─────────────────────────────────────────────────────────────── */
/* overflow:visible on viz-col preserves position:sticky (overflow:hidden breaks it in Safari).
   Clipping is handled by viz-wrap (overflow:hidden on a non-sticky child). */
#viz-col,#viz-col2,#viz-col3,#viz-col4,#viz-col5{width:50%;position:sticky;top:52px;height:calc(100vh - 52px);flex-shrink:0;overflow:visible}
#viz-wrap,#viz-wrap2,#viz-wrap3,#viz-wrap4,#viz-wrap5{width:100%;height:100%;display:flex;align-items:center;justify-content:center;padding:2rem;background:var(--viz-bg);overflow:hidden}
#main-svg,#main-svg2,#main-svg3,#main-svg4,#main-svg5{width:100%;height:100%;max-height:600px;overflow:visible}

/* ── FOOTER ────────────────────────────────────────────────────────────────── */
footer,.guide-footer{border-top:1px solid var(--border);padding:3rem 5rem;display:flex;gap:3rem;flex-wrap:wrap}
.ft-col h4{font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);font-family:'Courier New',monospace;margin-bottom:.8rem}
.ft-col p{font-size:.85rem;color:var(--text);line-height:1.6}
.ft-stat{font-size:2rem;color:var(--accent);font-weight:300;font-family:'Courier New',monospace;display:block}

/* ── THEME TOGGLE ──────────────────────────────────────────────────────────── */
#theme-btn,#themeToggle,.theme-toggle{margin-left:auto;background:none;border:1px solid var(--border);border-radius:6px;color:var(--dim);cursor:pointer;font-size:15px;padding:.2rem .55rem;line-height:1;transition:border-color .2s,color .2s}
#theme-btn:hover,#themeToggle:hover,.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}
#theme-btn:focus-visible,#themeToggle:focus-visible,.theme-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ── FOCUS STYLES FOR ACCESSIBILITY ────────────────────────────────────────── */
button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
a:focus-visible{border-radius:2px}

/* ── SKIP TO CONTENT LINK ──────────────────────────────────────────────────── */
.skip-link{position:absolute;top:-40px;left:0;background:var(--accent);color:var(--bg);padding:.5rem 1rem;text-decoration:none;z-index:300}
.skip-link:focus-visible{top:0}

/* ── SCROLLY CLASS LAYOUT (advanced / capstone) ───────────────────────────── */
.scrolly{display:flex;position:relative;align-items:flex-start}
.text-col{width:45%;padding:0 3rem 0 5rem;flex-shrink:0}
.sticky-viz{width:55%;position:sticky;top:52px;height:calc(100vh - 52px);flex-shrink:0;overflow:hidden;background:var(--viz-bg);display:flex;align-items:center;justify-content:center;padding:2rem;touch-action:manipulation}
.sticky-viz svg{width:100%;height:100%;max-height:640px;overflow:visible;cursor:grab;user-select:none}
.sticky-viz svg:active{cursor:grabbing}
@media(max-width:1024px){
  .scrolly{flex-direction:column}
  .text-col{width:100%;padding:0 2rem;margin-bottom:2rem}
  .sticky-viz{width:100%;height:60vh;position:relative;top:auto}
  .sticky-viz svg{max-height:70vh}
}

/* ── LIGHT THEME (system preference - only when no explicit theme set) ──────── */
@media(prefers-color-scheme:light){
  :root:not([data-theme]){
    --bg:#ffffff;--bg2:#f6f8fa;--text:#24292f;--dim:#57606a;
    --blue:#0969da;--green:#1a7f37;--purple:#8250df;
    --orange:#bc4c00;--red:#cf222e;--yellow:#9a6700;--border:#d0d7de;
    --heading:#1c2128;--hdr-bg:rgba(255,255,255,.92);--viz-bg:#f6f8fa;
    --accent:#0969da;
    --accent-subtle:rgba(9,105,218,.07);
    --accent-subtle2:rgba(9,105,218,.08);
    --accent-border:rgba(9,105,218,.28);
  }
  :root:not([data-theme]) .t-b{background:rgba(9,105,218,.09);border-color:rgba(9,105,218,.30)}
  :root:not([data-theme]) .t-g{background:rgba(26,127,55,.09);border-color:rgba(26,127,55,.30)}
  :root:not([data-theme]) .t-p{background:rgba(130,80,223,.09);border-color:rgba(130,80,223,.30)}
  :root:not([data-theme]) .t-o{background:rgba(188,76,0,.09);border-color:rgba(188,76,0,.30)}
  :root:not([data-theme]) .t-r{background:rgba(207,34,46,.09);border-color:rgba(207,34,46,.30)}
  :root:not([data-theme]) .t-y{background:rgba(154,103,0,.09);border-color:rgba(154,103,0,.30)}
  :root:not([data-theme]) .callout.blue{background:rgba(9,105,218,.06)}
  :root:not([data-theme]) .callout.green{background:rgba(26,127,55,.06)}
  :root:not([data-theme]) .callout.orange{background:rgba(188,76,0,.06)}
  :root:not([data-theme]) .callout.purple{background:rgba(130,80,223,.06)}
  :root:not([data-theme]) .callout.red{background:rgba(207,34,46,.06)}
  :root:not([data-theme]) .hb-green{border-color:rgba(26,127,55,.40);background:rgba(26,127,55,.08)}
  :root:not([data-theme]) .hb-blue{border-color:rgba(9,105,218,.40);background:rgba(9,105,218,.08)}
  :root:not([data-theme]) .hb-purple{border-color:rgba(130,80,223,.40);background:rgba(130,80,223,.08)}
}

/* ── LIGHT THEME (manual toggle) ──────────────────────────────────────────── */
[data-theme="light"]{
  --bg:#ffffff;--bg2:#f6f8fa;--text:#24292f;--dim:#57606a;
  --blue:#0969da;--green:#1a7f37;--purple:#8250df;
  --orange:#bc4c00;--red:#cf222e;--yellow:#9a6700;--border:#d0d7de;
  --heading:#1c2128;--hdr-bg:rgba(255,255,255,.92);--viz-bg:#f6f8fa;
  --accent:#0969da;
  --accent-subtle:rgba(9,105,218,.07);
  --accent-subtle2:rgba(9,105,218,.08);
  --accent-border:rgba(9,105,218,.28);
}
[data-theme="light"] .t-b{background:rgba(9,105,218,.09);border-color:rgba(9,105,218,.30)}
[data-theme="light"] .t-g{background:rgba(26,127,55,.09);border-color:rgba(26,127,55,.30)}
[data-theme="light"] .t-p{background:rgba(130,80,223,.09);border-color:rgba(130,80,223,.30)}
[data-theme="light"] .t-o{background:rgba(188,76,0,.09);border-color:rgba(188,76,0,.30)}
[data-theme="light"] .t-r{background:rgba(207,34,46,.09);border-color:rgba(207,34,46,.30)}
[data-theme="light"] .t-y{background:rgba(154,103,0,.09);border-color:rgba(154,103,0,.30)}
[data-theme="light"] .callout.blue{background:rgba(9,105,218,.06)}
[data-theme="light"] .callout.green{background:rgba(26,127,55,.06)}
[data-theme="light"] .callout.orange{background:rgba(188,76,0,.06)}
[data-theme="light"] .callout.purple{background:rgba(130,80,223,.06)}
[data-theme="light"] .callout.red{background:rgba(207,34,46,.06)}
[data-theme="light"] .hb-green{border-color:rgba(26,127,55,.40);background:rgba(26,127,55,.08)}
[data-theme="light"] .hb-blue{border-color:rgba(9,105,218,.40);background:rgba(9,105,218,.08)}
[data-theme="light"] .hb-purple{border-color:rgba(130,80,223,.40);background:rgba(130,80,223,.08)}

/* ── DARK THEME (manual toggle) ───────────────────────────────────────────── */
[data-theme="dark"]{
  --bg:#0d1117;--bg2:#161b22;--text:#c9d1d9;--dim:#8b949e;
  --blue:#58a6ff;--green:#3fb950;--purple:#d2a8ff;
  --orange:#f0883e;--red:#f85149;--yellow:#e3b341;--border:#30363d;
  --heading:#ffffff;--hdr-bg:rgba(13,17,23,.92);--viz-bg:#0d1117;
}

/* ── FOOTER NAVIGATION & STATS (pages 08-09) ───────────────────────────────── */
.nav-button{display:inline-block;padding:.5rem 1rem;border-radius:6px;text-decoration:none;font-size:.9rem;color:var(--text);border:1px solid var(--border);transition:color .2s,border-color .2s}
.nav-button:hover{color:var(--accent);border-color:var(--accent)}
.nav-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.nav-button.prev{margin-right:auto}
.nav-button.next{margin-left:auto}
.footer-nav{display:flex;gap:1rem;align-items:center}
.footer-stats{display:flex;gap:2rem;justify-content:center;margin-bottom:2rem}
.stat{text-align:center}
.stat-label{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);font-family:'Courier New',monospace}
.stat-value{font-size:1.8rem;font-weight:300;color:var(--accent);display:block;margin-top:.3rem}

/* ── ACCESSIBILITY: REDUCED MOTION ────────────────────────────────────────── */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* ── MOBILE ≤ 768px ────────────────────────────────────────────────────────── */
@media(max-width:768px){
  #hdr{padding:0 1rem;gap:.5rem}
  #hdr-scene{display:none}
  #hdr .sep{display:none}
  #hdr a{display:none}

  .navbar{height:auto;padding:.75rem 1rem}
  .nav-content{flex-direction:column;gap:.5rem;align-items:flex-start}
  .nav-links{margin-left:0;gap:1rem}
  .logo{font-size:12px}
  .nav-link{font-size:12px}

  #hero{height:auto;min-height:100vh;min-height:100svh;padding-top:60px}
  #hero-content{padding:1.5rem 1rem}
  #hero h1{font-size:clamp(1.7rem,7vw,2.6rem)}

  .hero{height:auto;min-height:100vh;min-height:100svh;padding-top:60px}
  .hero-content{padding:1.5rem 1rem}
  .guide-number{font-size:clamp(2rem,6vw,3rem)}
  .hero h1{font-size:clamp(1.7rem,7vw,2.6rem)}
  #hero .sub{font-size:.9rem}
  .hero-badges{gap:.35rem}
  .hero-badge{font-size:.68rem;padding:.22rem .55rem}

  .section-break{padding:2rem 1.25rem 1rem}

  #scrolly,#scrolly2,#scrolly3,#scrolly4,#scrolly5{
    flex-direction:column !important;
    align-items:stretch !important;
  }

  #viz-col,#viz-col2,#viz-col3,#viz-col4,#viz-col5{
    order:-1;
    width:100% !important;
    height:40vh !important;
    min-height:220px !important;
    position:sticky !important;
    top:52px !important;
    z-index:10;
    flex-shrink:0 !important;
    border-bottom:1px solid var(--border);
  }

  #viz-wrap,#viz-wrap2,#viz-wrap3,#viz-wrap4,#viz-wrap5{
    padding:.5rem !important;
  }

  #text-col,.text-col2,.text-col3,.text-col4,.text-col5{
    width:100% !important;
    padding:0 1.25rem !important;
    flex-shrink:1 !important;
  }

  .step{min-height:auto;padding:5vh 0 4vh}
  .step h2{font-size:clamp(1.15rem,5vw,1.5rem);word-break:break-word;overflow-wrap:break-word}
  .step p{font-size:.88rem;line-height:1.65}
  .step,.callout,.mini-viz-label{overflow-wrap:break-word;word-break:break-word}
  .tag{font-size:.70rem}
  .mini-viz{margin:.7rem 0}
  .callout{font-size:.82rem;padding:.6rem .85rem}
  .chapter-pill{font-size:.65rem}

  footer{padding:2rem 1.25rem;flex-direction:column;gap:1.5rem}
  .ft-stat{font-size:1.5rem}
}

/* ── MOBILE ≤ 480px ────────────────────────────────────────────────────────── */
@media(max-width:480px){
  #viz-col,#viz-col2,#viz-col3,#viz-col4,#viz-col5{
    height:34vh !important;
    min-height:180px !important;
  }
  .step{padding:4vh 0 3vh}
  #text-col,.text-col2,.text-col3,.text-col4,.text-col5{padding:0 1rem !important}
  footer{padding:1.5rem 1rem}
  #hero h1{font-size:clamp(1.5rem,8vw,2rem)}
  .hero-badges{justify-content:flex-start}

  .navbar{padding:.5rem 1rem}
  .guide-number{font-size:clamp(1.5rem,6vw,2.2rem)}
  .hero h1{font-size:clamp(1.5rem,8vw,2rem)}
}