/* ============================================================
   Faber — shared mobile layer.
   Every rule lives inside a media query, so desktop is untouched.
   Order/formatting of elements is preserved: only sizing, wrapping,
   and off-canvas behaviour change.
   ============================================================ */

/* ---------- universal guards (phones + small tablets) ---------- */
@media (max-width:900px){
  html,body{max-width:100%;overflow-x:hidden;-webkit-text-size-adjust:100%}
  img,svg,canvas,video{max-width:100%}
  /* never let a fixed-width child force a sideways scroll */
  .prompt-box,.search,.sub-form,.console,.conwrap,.sheet,.pbox{max-width:100%}
  /* respect notches / home indicators */
  header,.top,.topbar{padding-left:max(16px,env(safe-area-inset-left))!important;padding-right:max(16px,env(safe-area-inset-right))!important}
  .ftr{padding-bottom:calc(26px + env(safe-area-inset-bottom))!important}
  /* comfortable hit targets everywhere */
  button,.nav-link,.chip,.dd-item,.dd-link,a.btn-fill,.btn-outline,.tab,.rtab,.dtab{touch-action:manipulation}
  .icon-btn,.iconbtn,.wbtn,.tbtn,.ab,.tl,.cat-arrow,.refresh-btn{min-width:40px;min-height:40px}
  /* kill hover-lift transforms that stick on touch */
  .pcard:hover,.fcard:hover,.tcard:hover,.post:hover,.chan:hover,.card:hover,.dcard:hover,.mpc:hover,.statc:hover,.chip:hover,.gc:hover{transform:none!important}
}

/* ============================================================
   1. MARKETING HEADER → hamburger + drawer
   ============================================================ */
@media (max-width:900px){
  header#header{height:64px;gap:10px}
  header#header nav{display:none!important}
  header#header .nav-left{gap:0;flex:1;min-width:0}
  header#header .logo{font-size:18px}
  header#header .logo .tag{display:none}
  header#header .nav-right{gap:6px}
  header#header .nav-right .nav-link{display:none}
  header#header .nav-right .btn-outline{padding:9px 15px;font-size:13.5px}
  header#header .topnav{display:none!important}
  /* hamburger (injected by mobile.js) */
  .mburger{display:grid!important;place-items:center;width:42px;height:42px;border-radius:12px;color:var(--text,#2F2F2F);background:transparent;flex-shrink:0;transition:background .18s ease}
  .mburger:active{background:rgba(46,46,46,.07)}
}
@media (min-width:901px){.mburger,.mdrawer,.mscrim{display:none!important}}

/* drawer itself (any width — visibility gated by .mburger above) */
.mscrim{position:fixed;inset:0;z-index:78;background:rgba(28,22,16,.42);backdrop-filter:blur(3px);opacity:0;pointer-events:none;transition:opacity .28s ease}
.mscrim.on{opacity:1;pointer-events:auto}
.mdrawer{position:fixed;top:0;right:0;bottom:0;width:min(340px,88vw);z-index:79;background:var(--bg,#F5F8FC);border-left:1px solid var(--border,#E2E8F0);box-shadow:-16px 0 50px rgba(46,42,36,.2);transform:translateX(104%);transition:transform .34s cubic-bezier(.22,1,.36,1);display:flex;flex-direction:column;overflow:hidden}
.mdrawer.on{transform:none}
.mdh{display:flex;align-items:center;gap:10px;padding:calc(14px + env(safe-area-inset-top)) 16px 14px;border-bottom:1px solid var(--border,#E2E8F0);flex-shrink:0}
.mdh .mlogo{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:800;letter-spacing:-.02em;color:var(--text,#2F2F2F);text-decoration:none}
.mdh .mlogo img{width:26px;height:26px;object-fit:contain;display:block}
.mdh .mx{margin-left:auto;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:var(--text-2,#6F6F6F);background:transparent;border:none;cursor:pointer}
.mdh .mx:active{background:rgba(46,46,46,.07)}
.mdb{flex:1;overflow-y:auto;padding:10px 12px calc(18px + env(safe-area-inset-bottom));-webkit-overflow-scrolling:touch}
.mgrp{border-bottom:1px solid var(--border,#E2E8F0)}
.mgrp:last-of-type{border-bottom:none}
.mgt{display:flex;align-items:center;width:100%;gap:10px;padding:15px 8px;font-family:inherit;font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--text,#2F2F2F);background:none;border:none;cursor:pointer;text-align:left}
.mgt svg{margin-left:auto;color:var(--text-3,#94A3B8);transition:transform .25s cubic-bezier(.22,1,.36,1)}
.mgrp.open .mgt svg{transform:rotate(180deg)}
.mgrp.open .mgt{color:var(--accent,#2F7BE5)}
.msub{max-height:0;overflow:hidden;transition:max-height .32s cubic-bezier(.22,1,.36,1)}
.mgrp.open .msub{max-height:840px}
.msub a{display:flex;align-items:center;gap:11px;padding:12px 10px 12px 8px;font-size:14.5px;font-weight:500;color:var(--text-2,#6F6F6F);text-decoration:none;border-radius:10px}
.msub a:active{background:rgba(46,46,46,.06);color:var(--text,#2F2F2F)}
.msub a .mi{width:30px;height:30px;border-radius:9px;background:rgba(47,123,229,.09);color:var(--accent,#2F7BE5);display:grid;place-items:center;flex-shrink:0}
.msub a .mi svg{width:16px;height:16px}
.mlink{display:flex;align-items:center;gap:10px;padding:15px 8px;font-size:16px;font-weight:700;color:var(--text,#2F2F2F);text-decoration:none;border-bottom:1px solid var(--border,#E2E8F0)}
.mlink:active{color:var(--accent,#2F7BE5)}
.mcta{display:flex;flex-direction:column;gap:9px;margin-top:16px}
.mcta a,.mcta button{display:flex;align-items:center;justify-content:center;gap:8px;min-height:50px;border-radius:14px;font-family:inherit;font-size:15.5px;font-weight:700;cursor:pointer;text-decoration:none}
.mcta .mfill{background:var(--accent,#2F7BE5);color:#fff;border:none;box-shadow:0 8px 22px rgba(47,123,229,.26)}
.mcta .mghost{background:#fff;color:var(--text,#2F2F2F);border:1px solid var(--border,#E2E8F0)}
body.mlock{overflow:hidden!important}

/* ============================================================
   2. MARKETING CONTENT — fluid type + single column
   ============================================================ */
@media (max-width:900px){
  main{padding-left:18px;padding-right:18px}
  .hero,.thero,.chero,.bhero,.ghero,.dwrap,.wrapb,.wrapc,.wrapg,.sec,.endcta,.conwrap,.path,.tgrid{padding-left:0;padding-right:0}
  h1{font-size:clamp(30px,8.4vw,42px)!important;letter-spacing:-.03em}
  h2,.sec-head h2,.endcta h2,.cta-band h2,.sub-band h3,.band-txt h2{font-size:clamp(24px,6.4vw,32px)!important}
  .ftr-cta h2{font-size:clamp(30px,7.4vw,40px)!important}
  .sub,.hsub,.subtitle{font-size:16px!important}
  .kick{font-size:11.5px}
  /* every multi-column grid collapses */
  .fgrid,.grid,.feat,.bgrid,.tgrid,.chans,.gal,.rel,.feats,.shots,.two,.plans,.stat-grid,.chart-grid,.mp-grid,.ugrid,.plans2,.pf-stats,.outgrid{grid-template-columns:1fr!important}
  .hero-post,.pathcard,.band-in,.sub-band,.cta-band,.band{grid-template-columns:1fr!important}
  .band-in,.sub-band,.pathcard{flex-direction:column!important;align-items:flex-start!important;gap:24px!important}
  .sub-form{margin-left:0!important;width:100%;min-width:0!important}
  .cta-row{flex-direction:column;align-items:stretch}
  .cta-row .btn-fill,.cta-row .btn-outline{justify-content:center;min-height:50px}
  section,.sec{padding-top:56px;padding-bottom:56px}
  /* landing hero prompt box */
  .prompt-box{border-radius:24px;padding:16px 16px 12px}
  .prompt-box textarea{font-size:16px}
  .cats{gap:4px;margin-top:28px}
  .cats-row{gap:16px}
  .cat-icon{width:52px;height:52px}
  .chips{gap:9px}
  .chip{font-size:13.5px;padding:10px 16px}
  /* docs: stack sidebar/TOC */
  .dwrap{grid-template-columns:1fr!important;gap:22px;padding-top:96px}
  .toc{display:none}
  .dnav{position:static!important;flex-direction:row;overflow-x:auto;gap:14px;padding-bottom:6px;scrollbar-width:none}
  .dnav::-webkit-scrollbar{display:none}
  .dnav .grp{flex-shrink:0}
  .dsearch{min-width:210px}
  .code,.blk,.codeblk,.sd-code{font-size:11.5px}
  /* tables scroll instead of squeezing */
  .tbl{display:block;overflow-x:auto;white-space:nowrap}
  /* marketplace detail sheet */
  .d-wrap{grid-template-columns:1fr!important}
  .d-buy{border-left:none!important;border-top:1px solid var(--border);position:static!important}
  .sheet,.prof{margin:0 auto;border-radius:18px}
  .ov{padding:14px}
  .d-metrics{gap:18px;flex-wrap:wrap}
  .fbar{margin-left:-18px;margin-right:-18px;padding-left:18px;padding-right:18px}
  .frow{flex-wrap:wrap;gap:10px}
  .sortwrap{margin-left:0}
  /* footer */
  .ftr .fcols,.ftr .frow{grid-template-columns:1fr 1fr!important}
  .ftr .fbot{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:420px){
  main{padding-left:15px;padding-right:15px}
  h1{font-size:clamp(26px,8.2vw,34px)!important}
  .ftr .fcols,.ftr .frow{grid-template-columns:1fr!important}
  .cat-icon{width:48px;height:48px}
  .cat-label{font-size:12.5px}
}

/* ============================================================
   3. APP-LIKE PAGES — App.html (chat workspace)
   ============================================================ */
@media (max-width:900px){
  .app,.wrap-app{height:100dvh!important}
  /* off-canvas sidebar as a real sheet */
  .frame{padding:0 0 0 0!important;gap:0!important}
  .frame>.side{position:fixed!important;top:0;left:0;bottom:0;width:min(320px,86vw)!important;z-index:80;margin:0!important;border-radius:0!important;border-right:1px solid var(--border)!important;box-shadow:14px 0 44px rgba(46,42,36,.22);transform:translateX(0);transition:transform .32s cubic-bezier(.22,1,.36,1);padding-top:calc(14px + env(safe-area-inset-top))!important}
  .frame>.side.hide{transform:translateX(-104%)!important;margin-left:0!important;opacity:1!important}
  .view,.homeView{padding-left:16px!important;padding-right:16px!important}
  .pagewrap{padding:18px 16px calc(40px + env(safe-area-inset-bottom))!important}
  .setwrap{grid-template-columns:1fr!important;gap:16px!important}
  .setnav{position:static!important;flex-direction:row!important;overflow-x:auto;gap:6px;padding-bottom:4px;scrollbar-width:none}
  .setnav::-webkit-scrollbar{display:none}
  .setnav button{white-space:nowrap;flex-shrink:0}
  .dmetrics{display:none!important}
  .dacts{gap:6px}
  .dact{min-height:38px}
  .umenu{width:min(280px,84vw)}
  .pgh{flex-wrap:wrap}
  .pgh h1{font-size:22px!important}
}

/* ============================================================
   4. LearnIDE / IDE / Editor / DeveloperHub — dense IDE chrome
   ============================================================ */
@media (max-width:900px){
  .top,.topbar{height:56px;gap:9px;padding-top:env(safe-area-inset-top);height:calc(56px + env(safe-area-inset-top))}
  .body{position:relative}
  /* rails scroll horizontally instead of clipping */
  .rail:not([class*=railcol]){flex-direction:row!important;width:auto!important;height:auto!important;overflow-x:auto;overflow-y:hidden;border-right:none!important;border-bottom:1px solid var(--border)!important;padding:7px 10px!important;gap:5px!important;position:static!important;scrollbar-width:none}
  .rail::-webkit-scrollbar{display:none}
  .rail .tip{display:none!important}
  .rail .lg{margin-bottom:0!important;margin-right:6px}
  .ab.push{margin-top:0!important;margin-left:auto}
  /* body stacks: rail strip on top, content below */
  .body{flex-direction:column!important}
  /* side + right panels become bottom sheets */
  .body>.side,.body>.right{position:fixed!important;left:0!important;right:0!important;bottom:0!important;top:auto!important;width:auto!important;max-height:68dvh;z-index:70;border:none!important;border-top:1px solid var(--border)!important;border-radius:20px 20px 0 0;box-shadow:0 -14px 44px rgba(46,42,36,.22);transition:transform .32s cubic-bezier(.22,1,.36,1);padding-bottom:env(safe-area-inset-bottom)}
  .body>.side.hide,.body>.right.hide{transform:translateY(102%);width:auto!important;overflow:hidden!important}
  .center{min-height:0}
  .lesson{max-height:44dvh}
  .lc{grid-template-columns:1fr!important;padding:14px 16px 18px}
  .dock{height:170px}
  .dock.min{height:34px}
  .edwrap{min-height:150px}
  .prog,.eta,.gchips{display:none!important}
  .tools{margin-left:auto}
  /* workspace/editor specifics */
  #tabs,.tabs,.rtabs,.dh{overflow-x:auto;scrollbar-width:none}
  #tabs::-webkit-scrollbar,.tabs::-webkit-scrollbar,.rtabs::-webkit-scrollbar,.dh::-webkit-scrollbar{display:none}
  .in-grid{grid-template-columns:1fr!important}
  /* DeveloperHub */
  .hub-hero{padding:24px 20px!important}
  .hub-hero h1{font-size:26px!important}
  .hub-hero .gfx{width:180px!important;height:180px!important;opacity:.1!important}
  .wrap{padding:18px 16px calc(50px + env(safe-area-inset-bottom))!important}
  .seg{width:100%;overflow-x:auto;scrollbar-width:none}
  .seg::-webkit-scrollbar{display:none}
  .form-actions{flex-direction:column-reverse}
  .form-actions .fa-btn{width:100%;justify-content:center;min-height:48px}
  .toggle-row{flex-wrap:wrap}
  .toggle-row #priceWrap{width:100%!important;margin-left:0}
}

/* ============================================================
   5. Canvas / Learn (block canvas) / Auth
   ============================================================ */
@media (max-width:900px){
  .deckbody{flex-direction:column!important;min-height:0!important}
  .deckbody .rail{flex-direction:row!important;width:auto!important;border-right:none!important;border-bottom:1px solid var(--border)!important;overflow-x:auto}
  .deckbody .rail .thumb{width:104px;flex-shrink:0}
  /* Learn.html HUD */
  .hud{flex-wrap:wrap;height:auto;padding:calc(8px + env(safe-area-inset-top)) 12px 8px;gap:9px}
  .hud .lesson{flex:1;min-width:0}
  #side{width:min(320px,92vw)}
  #mmWrap{display:none}
  .tools{bottom:calc(12px + env(safe-area-inset-bottom))}
  /* Auth */
  .authbox,.acard,.authcard{width:100%!important;max-width:100%!important;border-radius:18px!important;padding:24px 20px!important}
  .authwrap,.authgrid{grid-template-columns:1fr!important}
  .authside,.authaside{display:none!important}
}

/* ============================================================
   6. Tablet — two columns instead of one where it reads better
   ============================================================ */
@media (min-width:721px) and (max-width:900px){
  .fgrid,.grid,.bgrid,.tgrid,.chans,.gal,.mp-grid,.stat-grid,.ugrid,.plans2{grid-template-columns:1fr 1fr!important}
  .ftr .fcols,.ftr .frow{grid-template-columns:repeat(3,1fr)!important}
}

/* ---------- iOS: stop inputs zooming the page ---------- */
@media (max-width:900px){
  input,textarea,select{font-size:16px!important}
  .codetxt,.gutter,.term input,.blk,code{font-size:12px!important}
  .sinp,.inp{font-size:15px!important}
}