*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--p:#9647FF;--pd:#4A378B;--pl:#f3edff;--pale:#faf8ff;--text:#1a1a2e;--body:#444;--muted:#888;--border:#e8e3f5;--warn-bg:#fffbf5;--warn-b:#f6d860;--warn-a:#e68a00;--warn-t:#5a3e00;--r:10px}
html{scroll-behavior:smooth}
body{font-family:Arial,'Helvetica Neue',Helvetica,sans-serif;font-size:15px;color:var(--text);background:#f5f3fc;line-height:1.65;-webkit-text-size-adjust:100%;text-size-adjust:100%;overflow-wrap:break-word;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
.page{display:none}
.page.active{display:block}
a{color:var(--p)}
.nav{position:sticky;top:0;z-index:200;background:#fff;border-bottom:2px solid var(--p);padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:56px;gap:12px}
.nav-links{display:flex;gap:5px}
.nl{font-size:11px;font-weight:bold;color:var(--pd);text-decoration:none;padding:5px 10px;border-radius:4px;background:var(--pl);white-space:nowrap}
.nl:hover{background:#e2d5ff}
.gnav{position:sticky;top:0;z-index:200;background:#fff;border-bottom:2px solid var(--p);padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:52px;gap:12px}
.gnav-mid{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;text-align:center}
.back-btn{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:bold;color:var(--p);text-decoration:none;padding:6px 14px;border-radius:5px;background:var(--pl);white-space:nowrap;flex-shrink:0;cursor:pointer}
.back-btn:hover{background:#e2d5ff}
.hero{background:linear-gradient(135deg,#9647FF 0%,#4A378B 100%);color:#fff;padding:52px 20px 46px;text-align:center}
.hero-inner{max-width:820px;margin:0 auto}
.badge{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);border-radius:20px;font-size:11px;font-weight:bold;letter-spacing:.1em;text-transform:uppercase;padding:4px 14px;margin-bottom:16px;color:rgba(255,255,255,.85)}
.hero h1{font-size:clamp(22px,5vw,40px);font-weight:bold;text-transform:uppercase;line-height:1.1;margin-bottom:12px}
.hero p{font-size:clamp(14px,2.5vw,17px);color:rgba(255,255,255,.82);max-width:660px;margin:0 auto;line-height:1.6}
.hero-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.75);justify-content:center;margin-top:10px}
.hero-meta span::before{content:"· "}
.hero-meta span:first-child::before{content:""}
.main{max-width:1040px;margin:0 auto;padding:36px 20px 80px}
.narrow{max-width:860px;margin:0 auto;padding:32px 20px 80px}
.s-eye{font-size:10px;font-weight:bold;letter-spacing:.14em;text-transform:uppercase;color:var(--p);margin-bottom:5px}
.s-title{font-size:20px;font-weight:bold;margin-bottom:5px}
.s-lbl{font-size:10px;font-weight:bold;letter-spacing:.12em;text-transform:uppercase;color:var(--p);margin:28px 0 10px}
.divider{height:1px;background:var(--border);margin:40px 0 32px}
.why-box{background:#fff;border-left:4px solid var(--p);border-radius:0 8px 8px 0;padding:14px 18px;margin-bottom:20px;box-shadow:0 1px 4px rgba(107,70,193,.08)}
.why-box p{font-size:13px;color:#2d2d2d;line-height:1.6}
.hub-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:860px){.hub-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.hub-grid{grid-template-columns:1fr}}
.htile{background:#fff;border:1.5px solid var(--border);border-radius:var(--r);padding:20px 16px 18px;text-decoration:none;color:var(--text);display:flex;flex-direction:column;gap:8px;transition:border-color .15s,box-shadow .15s,transform .15s}
.htile:hover{border-color:var(--p);box-shadow:0 4px 20px rgba(150,71,255,.12);transform:translateY(-2px)}
.ti{width:38px;height:38px;background:var(--pl);border-radius:8px;display:flex;align-items:center;justify-content:center}
.ti svg{width:18px;height:18px}
.tl{font-size:13px;font-weight:bold;line-height:1.3}
.ts{font-size:12px;color:var(--body);line-height:1.4;flex:1}
.ta{margin-top:auto;font-size:11px;font-weight:bold;color:var(--p)}
.mod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:920px){.mod-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.mod-grid{grid-template-columns:1fr}}
.mod{background:#fff;border:1.5px solid var(--border);border-radius:var(--r);overflow:hidden;transition:border-color .15s,box-shadow .15s}
.mod.open{border-color:var(--p);box-shadow:0 4px 20px rgba(150,71,255,.1)}
.mod-h{display:flex;align-items:center;gap:12px;padding:18px 16px;cursor:pointer;user-select:none}
.mod-ic{width:42px;height:42px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.mod-ic svg{width:20px;height:20px}
.mod-m{flex:1;min-width:0}
.mod-n{font-size:14px;font-weight:bold;margin-bottom:2px}
.mod-d{font-size:11px;color:var(--body);line-height:1.35}
.mod-c{font-size:10px;font-weight:bold;background:var(--pl);color:var(--pd);padding:2px 8px;border-radius:10px;white-space:nowrap;flex-shrink:0}
.mod-ch{color:var(--muted);font-size:18px;flex-shrink:0;margin-left:4px;transition:transform .2s;line-height:1}
.mod.open .mod-ch{transform:rotate(180deg)}
.mod-feats{display:none;border-top:1px solid var(--border);background:var(--pale)}
.mod.open .mod-feats{display:block}
.fi{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--border);text-decoration:none;color:var(--text);transition:background .1s;cursor:pointer}
.fi:last-child{border-bottom:none}
.fi:hover{background:#f0eaff}
.fn{font-size:10px;font-weight:bold;color:var(--p);min-width:22px;flex-shrink:0}
.ft{flex:1}
.ft-t{font-size:13px;font-weight:bold;margin-bottom:1px}
.ft-w{font-size:11px;color:var(--muted)}
.fa{color:var(--p);font-size:16px;flex-shrink:0}
.res-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:900px){.res-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.res-grid{grid-template-columns:1fr}}
.rc{background:#fff;border:1.5px solid var(--border);border-radius:var(--r);padding:20px 18px;display:flex;flex-direction:column;gap:8px;transition:border-color .15s}
.rc:hover{border-color:var(--p)}
.ri{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:22px}
.rl{font-size:13px;font-weight:bold;line-height:1.3}
.rs{font-size:12px;color:var(--body);line-height:1.5;flex:1}
.rb{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:bold;color:var(--p);text-decoration:none;margin-top:4px}
.obj{background:#fff;border-left:4px solid var(--p);border-radius:0 8px 8px 0;padding:14px 18px;margin-bottom:22px;box-shadow:0 1px 4px rgba(107,70,193,.08)}
.obj-l{font-size:10px;font-weight:bold;letter-spacing:.12em;text-transform:uppercase;color:var(--p);margin-bottom:5px}
.obj-t{font-size:14px;color:#2d2d2d;line-height:1.55}
.vid-section{margin-bottom:22px}
.vid-lbl{font-size:10px;font-weight:bold;letter-spacing:.12em;text-transform:uppercase;color:var(--p);margin-bottom:10px}
.vid-wrap{background:#000;border-radius:10px;overflow:hidden;box-shadow:0 2px 12px rgba(107,70,193,.15)}
.sc{background:#fff;border:1.5px solid var(--border);border-radius:var(--r);margin-bottom:10px;overflow:hidden}
.sh{display:flex;gap:12px;padding:16px 18px;align-items:flex-start}
.sb{background:var(--p);color:#fff;font-size:12px;font-weight:bold;border-radius:50%;width:26px;height:26px;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.st{font-size:14px;font-weight:bold;margin-bottom:4px}
.sd{font-size:13px;color:#555;line-height:1.6}
.sd ul{padding-left:18px;margin:4px 0}
.sd li{margin-bottom:4px}
.np{display:flex;align-items:center;gap:4px;margin-top:8px;flex-wrap:wrap}
.np1{background:var(--pl);color:var(--pd);font-size:11px;font-weight:bold;padding:2px 8px;border-radius:3px}
.na{color:#9b86d4;font-size:11px}
.fm{background:#f8f6ff;border:1px solid #d6cdf5;border-radius:6px;padding:9px 13px;margin-top:9px;font-size:12px;font-weight:bold;color:#3d2b8f;line-height:1.5}
.wn{background:var(--warn-bg);border:1px solid var(--warn-b);border-left:3px solid var(--warn-a);border-radius:0 5px 5px 0;padding:10px 13px;font-size:12px;color:var(--warn-t);line-height:1.55;margin-top:9px}
.tip{background:#e8f5e9;border-left:3px solid #2e7d32;border-radius:0 5px 5px 0;padding:10px 13px;font-size:12px;color:#1b5e20;line-height:1.55;margin-top:9px}
.shot-wrap{border-top:1px solid var(--border);background:var(--pale);padding:14px 18px;display:flex;flex-direction:column;align-items:center;gap:6px}
.shot-wrap img{width:100%;max-width:720px;border-radius:6px;border:1.5px solid var(--border);box-shadow:0 2px 10px rgba(107,70,193,.08)}
.shot-cap{font-size:11px;color:var(--muted);font-style:italic;text-align:center}
.ct{width:100%;border-collapse:collapse;margin-top:10px;font-size:12px}
.ct th{background:var(--pl);color:var(--pd);font-weight:bold;padding:8px 10px;text-align:left;border:1px solid var(--border)}
.ct td{padding:8px 10px;border:1px solid var(--border);color:#444}
.ct tr:nth-child(even){background:var(--pale)}
.cta-b{margin-top:32px;background:linear-gradient(135deg,var(--p),var(--pd));border-radius:var(--r);padding:20px 22px;text-align:center}
.cta-b p{font-size:14px;font-weight:bold;color:#fff;margin-bottom:9px}
.cta-btn{display:inline-block;background:#fff;color:var(--p);font-size:13px;font-weight:bold;padding:9px 22px;border-radius:5px;text-decoration:none}
.footer{background:var(--pl);border-top:1px solid var(--border);padding:16px 20px;text-align:center;font-size:12px;color:var(--muted)}
@media(max-width:600px){.sh{flex-direction:column;gap:8px}.nav-links{display:none}.gnav-mid{display:none}}

/* ═══════════════════════════════════════════
   MOBILE OPTIMISATION — applies to all pages
   ═══════════════════════════════════════════ */

/* ── Video player: ensure proper mobile display ── */
.vid-wrap {
  border-radius: 8px;
  overflow: hidden;
  background: #000;
}
.vid-wrap video {
  width: 100%;
  height: auto;
  display: block;
  max-height: 60vw;
}

/* ── Guide nav bar ── */
@media (max-width: 768px) {
  .gnav {
    padding: 0 16px;
    height: 48px;
  }
  .gnav-mid { display: none; }
  .back-btn {
    font-size: 13px;
    padding: 6px 10px;
  }

  /* ── Hero ── */
  .hero { padding: 28px 20px 24px; }
  .hero h2 { font-size: 22px; line-height: 1.2; }
  .badge { font-size: 10px; padding: 4px 10px; margin-bottom: 10px; }
  .hero-meta { flex-wrap: wrap; gap: 6px; font-size: 12px; }
  .hero-meta span::before { content: ''; }
  .hero-meta span:not(:first-child)::before { content: '· '; }

  /* ── Main content container ── */
  .narrow { padding: 20px 16px 48px; }
  .main   { padding: 20px 16px 48px; }

  /* ── Objective block ── */
  .obj { padding: 14px 16px; margin-bottom: 20px; }
  .obj-t { font-size: 14px; line-height: 1.55; }

  /* ── Video section ── */
  .vid-section { margin-bottom: 20px; }
  .vid-lbl { font-size: 10px; margin-bottom: 8px; }

  /* ── Step cards ── */
  .sc { margin-bottom: 12px; border-radius: 10px; }
  .sh {
    flex-direction: column;
    padding: 14px 14px 10px;
    gap: 10px;
    align-items: flex-start;
  }
  .sb {
    width: 28px;
    height: 28px;
    font-size: 12px;
    flex-shrink: 0;
  }
  .st { font-size: 15px; margin-bottom: 6px; }
  .sd { font-size: 13px; line-height: 1.55; }
  .sd ul { padding-left: 16px; }
  .sd li { margin-bottom: 4px; }

  /* ── Nav path pills ── */
  .np { flex-wrap: wrap; gap: 4px; margin-top: 8px; }
  .np1 { font-size: 10px; padding: 2px 7px; }
  .na  { font-size: 10px; }

  /* ── Formula / tip / warning blocks ── */
  .fm  { font-size: 12px; padding: 8px 10px; margin-top: 8px; }
  .wn  { font-size: 13px; padding: 10px 12px; margin-top: 10px; }
  .tip { font-size: 13px; padding: 10px 12px; margin-top: 10px; }

  /* ── Screenshots ── */
  .shot-wrap { padding: 12px; }
  .shot-wrap img { border-radius: 6px; }
  .shot-cap { font-size: 11px; margin-top: 6px; }
  .guide-link { font-size: 12px; }

  /* ── CTA block ── */
  .cta-b {
    padding: 20px 16px;
    margin-top: 24px;
    border-radius: 10px;
  }
  .cta-btn {
    font-size: 13px;
    padding: 10px 18px;
  }

  /* ── Section label ── */
  .s-lbl { font-size: 10px; margin-bottom: 12px; margin-top: 20px; }

  /* ── Footer ── */
  .footer {
    padding: 16px;
    flex-direction: column;
    gap: 8px;
    text-align: center;
    font-size: 12px;
  }

  /* ── Hub ── */
  .nav { padding: 0 16px; height: 52px; }
  .nl  { font-size: 11px; padding: 4px 8px; }

  /* Hub module grid → single column */
  .mod-grid {
    grid-template-columns: 1fr !important;
    gap: 10px;
  }
  .mod-h { padding: 14px 16px; }
  .mod-ic { width: 36px; height: 36px; }
  .mod-ic svg { width: 18px; height: 18px; }
  .mod-name { font-size: 15px; }
  .mod-desc { font-size: 12px; }
  .mod-count { font-size: 11px; }

  /* Feature items in hub */
  .fi { padding: 10px 16px; }
  .fn { font-size: 11px; min-width: 28px; }
  .ft-t { font-size: 13px; }
  .ft-w { font-size: 11px; }
  .fa { font-size: 16px; }

  /* Support tiles → 2 col */
  .hub-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px;
  }
  .htile { padding: 16px 14px; }
  .ti { width: 36px; height: 36px; font-size: 16px; margin-bottom: 10px; }
  .tl { font-size: 14px; }
  .ts { font-size: 12px; }

  /* Resource cards → 2 col */
  .res-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px;
  }
  .rc { padding: 16px 14px; }

  /* Hub hero */
  .hub-hero { padding: 32px 20px 28px; }
  .hub-hero h1 { font-size: 26px; line-height: 1.2; }
  .hub-hero p  { font-size: 14px; margin-top: 10px; }

  /* PDF resources section */
  .pdf-grid {
    grid-template-columns: 1fr !important;
    gap: 10px;
  }

  /* Download buttons */
  .dl-btn { font-size: 13px; padding: 12px 14px; }
}

/* Very small screens */
@media (max-width: 420px) {
  .hub-grid { grid-template-columns: 1fr !important; }
  .res-grid  { grid-template-columns: 1fr !important; }
  .hero h2   { font-size: 20px; }
  .sh        { padding: 12px; }
}


/* === MOBILE OPTIMIZATION (added) === */

/* Prevent horizontal overflow from any element */
html, body { max-width: 100%; overflow-x: hidden; }

/* Long strings never cause horizontal scroll */
code, .np, .np1, .hero-meta span, .footer, a[href^="mailto"] {
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* Images always scale down responsively */
img { max-width: 100%; height: auto; }

/* Screenshots — already have max-width:720px, ensure they fill available width on mobile */
.shot-wrap img { max-width: 100%; width: 100%; }
.shot-wrap { padding: 10px; }

/* === Tap target minimums (WCAG 2.5.5 / iOS HIG / Material Design) === */
@media (hover: none) and (pointer: coarse) {
  .back-btn,
  .cta-btn,
  .nl,
  .fi,
  .mod-h {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .fi { padding: 14px 16px; }
}

/* === Tighter mobile (≤600px) === */
@media (max-width: 600px) {
  /* Reduce page gutters to claim more width */
  .narrow { padding: 16px 12px 40px; }
  .hero { padding: 20px 14px 20px; }
  .hub { padding: 20px 14px 0; }

  /* Headings scale down further */
  h1 { font-size: 22px; line-height: 1.2; }
  .hero h1 { font-size: 22px; }

  /* Step cards — tighter padding, keep headers column-layout */
  .sc { margin-bottom: 12px; }
  .sh { flex-direction: column; padding: 14px; gap: 10px; }
  .st { font-size: 15px; line-height: 1.3; }
  .sd { font-size: 14px; line-height: 1.6; }

  /* Step number circle needs to stay visible + tappable on touch */
  .sb { width: 32px; height: 32px; font-size: 14px; flex-shrink: 0; }

  /* Navigation path chips stay visible, wrap well */
  .np { font-size: 11px; }
  .np1 { padding: 3px 8px; max-width: 100%; }

  /* Screenshots consume more width on narrow screens */
  .shot-wrap { padding: 8px 6px; margin: 0 -6px; border-radius: 0; }
  .shot-cap { font-size: 11px; padding: 0 6px; }

  /* Objective and why-box */
  .obj { padding: 12px 14px; margin-bottom: 16px; }
  .obj-t { font-size: 14px; }
  .why-box { padding: 12px 14px; margin-bottom: 16px; }
  .why-box p { font-size: 14px; line-height: 1.55; }

  /* Tip box */
  .tip { font-size: 13px; padding: 10px 12px; }

  /* Module cards on hub */
  .mod-h { padding: 14px; gap: 12px; }
  .mod-n { font-size: 15px; }
  .mod-d { font-size: 12px; line-height: 1.4; }
  .fi { padding: 12px 14px; }
  .ft-t { font-size: 14px; line-height: 1.3; }
  .ft-w { font-size: 11px; }

  /* Top nav */
  .gnav { padding: 0 12px; }
  .back-btn { font-size: 13px; padding: 8px 12px; }

  /* Footer */
  .footer { font-size: 11px; padding: 16px 12px; flex-wrap: wrap; }

  /* CTA bottom block */
  .cta-b { padding: 20px 14px; margin-top: 24px; }
  .cta-b p { font-size: 14px; }
  .cta-btn { padding: 12px 20px; font-size: 14px; min-height: 44px; }
}

/* === Very narrow (≤380px) — iPhone SE territory === */
@media (max-width: 380px) {
  .narrow { padding: 14px 10px 32px; }
  .hero { padding: 16px 12px 16px; }
  h1 { font-size: 20px; }
  .hero h1 { font-size: 20px; }
  .hero-meta { font-size: 11px; }
  .sh { padding: 12px; }
  .st { font-size: 14px; }
  .sd { font-size: 13px; }
  .np { font-size: 10px; }
  .shot-wrap { padding: 6px 4px; margin: 0 -4px; }
  .obj { padding: 10px 12px; }
  .obj-t { font-size: 13px; }
}

/* Landscape orientation on phones — keep content readable */
@media (max-width: 900px) and (orientation: landscape) and (max-height: 480px) {
  .hero { padding: 14px 16px; }
  h1 { font-size: 20px; }
  .hero h1 { font-size: 20px; }
}