/* Drive Coding — single post template
   Tokens (--navy-*, --lime-*, --paper-*, --ink-*, --font-*) are defined
   in Customizer > Additional CSS. Fallbacks included for safety. */

.dc-post{
  --dc-navy-900:var(--navy-900,#050B2C);
  --dc-navy-800:var(--navy-800,#0A1240);
  --dc-navy-700:var(--navy-700,#141C56);
  --dc-navy-600:var(--navy-600,#222C70);
  --dc-lime-500:var(--lime-500,#D4E85C);
  --dc-lime-600:var(--lime-600,#C2D742);
  --dc-lime-400:var(--lime-400,#E2F085);
  --dc-lime-100:var(--lime-100,#F2F7CE);
  --dc-paper-000:var(--paper-000,#FFFFFF);
  --dc-paper-050:var(--paper-050,#F7F7F2);
  --dc-paper-100:var(--paper-100,#EDEDE4);
  --dc-paper-200:var(--paper-200,#DCDCD0);
  --dc-ink-900:var(--ink-900,#0B0E1A);
  --dc-ink-600:var(--ink-600,#4A4E5C);
  --dc-ink-400:var(--ink-400,#797E8C);
  --dc-muted:var(--text-on-dark-muted,#B7BCD4);
  --dc-ed-bg:var(--editor-bg,#070D30);
  --dc-ed-chrome:var(--editor-chrome,#0C1442);
  --dc-ed-line:var(--editor-line,#2A3372);
  --dc-ed-text:var(--editor-text,#E6E9FF);
  --dc-fd:var(--font-display,'Montserrat',system-ui,sans-serif);
  --dc-fb:var(--font-body,'Montserrat',system-ui,sans-serif);
  --dc-fm:var(--font-mono,'JetBrains Mono',ui-monospace,Menlo,monospace);
  --dc-max:1280px;
  font-family:var(--dc-fb);
  background:var(--dc-paper-000);
}

.dc-post *,.dc-post *::before,.dc-post *::after{box-sizing:border-box;}
.dc-wrap{max-width:var(--dc-max);margin:0 auto;padding:0 32px;width:100%;}

/* ---------------- Hero ---------------- */
.dc-hero{background:var(--dc-paper-050);border-bottom:1px solid var(--dc-paper-200);padding:40px 0 52px !important;min-height:0 !important;height:auto !important;overflow:visible;}
.dc-crumbs{font-family:var(--dc-fm);font-size:12px;color:var(--dc-ink-400);margin:0 0 18px;display:flex;flex-wrap:wrap;align-items:center;gap:7px;}
.dc-crumbs a{color:var(--dc-ink-400);text-decoration:none;}
.dc-crumbs a:hover{color:var(--dc-ink-900);text-decoration:underline;}
.dc-crumbs .dc-sep{opacity:.55;}
.dc-crumbs .dc-cur{color:var(--dc-ink-900);}

.dc-badges{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:16px;}
.dc-pill{font-family:var(--dc-fm);font-size:12px;font-weight:700;line-height:1;padding:7px 13px;border-radius:999px;text-decoration:none;display:inline-block;}
.dc-pill--cat{background:var(--dc-lime-100);color:#4A5A0E;border:1px solid var(--dc-lime-400);}
.dc-pill--cat::before{content:"• ";}
.dc-pill--cat.is-html{background:#FFE7D6;border-color:#FFCBAA;color:#7A3A10;}
.dc-pill--cat.is-css{background:#E6E1FF;border-color:#CFC6FF;color:#372A8C;}
.dc-pill--cat.is-js{background:#FFF3C4;border-color:#FFE58A;color:#6B5200;}
a.dc-pill--cat{text-decoration:none;}
a.dc-pill--cat:hover{filter:brightness(.96);}
.dc-pill--lvl{color:#05391F;background:#7BE0AE;}
.dc-pill--lvl.is-intermediate{background:#FFD37A;color:#4A3300;}
.dc-pill--lvl.is-advanced{background:#FFB3A7;color:#5A1608;}
.dc-readtime{font-family:var(--dc-fm);font-size:12px;color:var(--dc-ink-400);}

.dc-title{font-family:var(--dc-fd);font-weight:800;font-size:clamp(30px,4.4vw,46px);line-height:1.12;letter-spacing:-.02em;color:var(--dc-ink-900);margin:0 0 14px;max-width:20ch;}
.dc-sub{font-family:var(--dc-fb);font-size:17px;line-height:1.55;color:var(--dc-ink-600);margin:0 0 20px;max-width:62ch;}
.dc-byline{font-family:var(--dc-fm);font-size:12px;color:var(--dc-ink-400);margin:0;}
.dc-byline strong{font-weight:600;color:var(--dc-ink-600);}

/* ---------------- Layout ---------------- */
.dc-body{background:var(--dc-paper-000);padding:52px 0 8px !important;}
.dc-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:64px;align-items:start;}
.dc-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}

/* ---------------- Article ---------------- */
.dc-article{min-width:0;font-family:var(--dc-fb);font-size:15.5px;line-height:1.72;color:var(--dc-ink-600);}
.dc-article > *:first-child{margin-top:0;}
.dc-article p{margin:0 0 20px;}
.dc-article h2{font-family:var(--dc-fd);font-weight:700;font-size:25px;line-height:1.25;letter-spacing:-.01em;color:var(--dc-ink-900);margin:44px 0 14px;scroll-margin-top:110px;}
.dc-article h3{font-family:var(--dc-fd);font-weight:700;font-size:19px;line-height:1.3;color:var(--dc-ink-900);margin:32px 0 10px;scroll-margin-top:110px;}
.dc-article h4{font-family:var(--dc-fd);font-weight:600;font-size:16px;color:var(--dc-ink-900);margin:26px 0 8px;}
.dc-article a{color:var(--dc-ink-900);text-decoration:underline;text-decoration-color:var(--dc-lime-600);text-underline-offset:3px;text-decoration-thickness:2px;}
.dc-article a:hover{background:var(--dc-lime-100);}
.dc-article strong{color:var(--dc-ink-900);font-weight:700;}
.dc-article ul,.dc-article ol{margin:0 0 22px;padding-left:22px;}
.dc-article li{margin-bottom:9px;}
.dc-article li::marker{color:var(--dc-ink-400);}
.dc-article ol li::marker{font-family:var(--dc-fm);font-weight:700;font-size:14px;color:var(--dc-ink-900);}
.dc-article img{max-width:100%;height:auto;border-radius:12px;}
.dc-article figure{margin:0 0 24px;}
.dc-article figcaption{font-family:var(--dc-fm);font-size:12px;color:var(--dc-ink-400);text-align:center;margin-top:9px;}
.dc-article hr{border:0;border-top:1px solid var(--dc-paper-200);margin:36px 0;}

/* inline code */
.dc-article :not(pre) > code{font-family:var(--dc-fm);font-size:.86em;background:var(--dc-paper-100);color:var(--dc-ink-900);padding:3px 6px;border-radius:5px;white-space:nowrap;}

/* tables */
.dc-article table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:14px;}
.dc-article th,.dc-article td{border:1px solid var(--dc-paper-200);padding:10px 12px;text-align:left;}
.dc-article th{background:var(--dc-paper-050);font-family:var(--dc-fd);font-weight:700;color:var(--dc-ink-900);}

/* ---------------- Code panel ---------------- */
.dc-code{margin:0 0 26px;border-radius:12px;overflow:hidden;background:var(--dc-ed-bg);border:1px solid var(--dc-ed-line);}
.dc-code-bar{display:flex;align-items:center;gap:12px;background:var(--dc-ed-chrome);padding:9px 13px;border-bottom:1px solid var(--dc-ed-line);}
.dc-dots{display:flex;gap:5px;flex:0 0 auto;}
.dc-dots i{width:10px;height:10px;border-radius:50%;display:block;}
.dc-dots i:nth-child(1){background:#FF5F57;}
.dc-dots i:nth-child(2){background:#FEBC2E;}
.dc-dots i:nth-child(3){background:#28C840;}
.dc-code-tab{font-family:var(--dc-fm);font-size:12px;color:var(--dc-ed-text);opacity:.9;}
.dc-code-tab::before{content:"• ";color:var(--dc-lime-500);}
.dc-code pre{margin:0;padding:16px 18px;overflow-x:auto;background:transparent;border:0;}
.dc-code pre code{font-family:var(--dc-fm);font-size:13px;line-height:1.62;color:var(--dc-ed-text);background:transparent;padding:0;white-space:pre;display:block;}
.dc-code-foot{display:flex;align-items:center;justify-content:flex-end;gap:14px;padding:9px 14px;background:var(--dc-ed-chrome);border-top:1px solid var(--dc-ed-line);}
.dc-code-open{font-family:var(--dc-fm);font-size:12px;font-weight:600;color:var(--dc-lime-500);text-decoration:none;}
.dc-code-open:hover{color:var(--dc-lime-400);text-decoration:underline;}
.dc-code-copy{font-family:var(--dc-fm);font-size:12px;font-weight:600;color:var(--dc-muted);background:transparent;border:1px solid var(--dc-ed-line);border-radius:7px;padding:5px 11px;cursor:pointer;margin-right:auto;}
.dc-code-copy:hover{color:var(--dc-ed-text);border-color:var(--dc-navy-600);}
.dc-code-copy.is-done{color:var(--dc-lime-500);border-color:var(--dc-lime-600);}

/* ---------------- Callouts ---------------- */
.dc-callout{display:flex;gap:14px;align-items:flex-start;padding:15px 17px;border-radius:12px;margin:0 0 26px;font-size:14.5px;line-height:1.6;}
.dc-callout .dc-chip{font-family:var(--dc-fm);font-size:11px;font-weight:700;letter-spacing:.05em;padding:4px 10px;border-radius:999px;flex:0 0 auto;}
.dc-callout p{margin:0;}
.dc-callout p + p{margin-top:9px;}
.dc-callout--tip{background:var(--dc-lime-100);border:1px solid var(--dc-lime-400);color:var(--dc-ink-900);}
.dc-callout--tip .dc-chip{background:var(--dc-lime-500);color:#3D4A08;}
.dc-callout--note{background:var(--dc-navy-900);border:1px solid var(--dc-navy-700);color:#DDE0F0;}
.dc-callout--note .dc-chip{background:#3B82F6;color:#FFFFFF;}
.dc-callout--note a{color:var(--dc-lime-500);text-decoration-color:var(--dc-lime-600);}
.dc-callout--warn{background:#FFF4E5;border:1px solid #FFD8A8;color:#4A3300;}
.dc-callout--warn .dc-chip{background:#F59E0B;color:#FFFFFF;}

/* ---------------- Quote ---------------- */
.dc-article blockquote{margin:0 0 26px;padding:4px 0 4px 20px;border-left:3px solid var(--dc-lime-500);}
.dc-article blockquote p{font-family:var(--dc-fd);font-weight:600;font-size:18px;line-height:1.45;color:var(--dc-ink-900);margin:0 0 8px;}
.dc-article blockquote cite,.dc-article blockquote .wp-block-quote__citation{display:block;font-family:var(--dc-fm);font-size:12px;font-style:normal;color:var(--dc-ink-400);}

/* ---------------- Sidebar ---------------- */
.dc-side-label{font-family:var(--dc-fm);font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--dc-ink-400);margin:0 0 12px;}
.dc-toc ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--dc-paper-200);}
.dc-toc li{margin:0;}
.dc-toc a{display:block;font-size:13.5px;line-height:1.4;color:var(--dc-ink-400);text-decoration:none;padding:7px 0 7px 14px;margin-left:-1px;border-left:2px solid transparent;}
.dc-toc a:hover{color:var(--dc-ink-900);}
.dc-toc a.is-active{color:var(--dc-ink-900);font-weight:600;border-left-color:var(--dc-lime-500);}

.dc-card{border-radius:12px;padding:20px;}
.dc-card--dark{background:var(--dc-navy-900);}
.dc-card--dark h3{font-family:var(--dc-fd);font-weight:700;font-size:16px;color:#FFFFFF;margin:0 0 8px;}
.dc-card--dark p{font-size:13.5px;line-height:1.55;color:var(--dc-muted);margin:0 0 15px;}
.dc-btn{display:inline-block;font-family:var(--dc-fm);font-size:13px;font-weight:700;background:var(--dc-lime-500);color:#1B2405;padding:9px 16px;border-radius:8px;text-decoration:none;border:0;cursor:pointer;}
.dc-btn:hover{background:var(--dc-lime-400);color:#1B2405;}
.dc-card--paper{background:var(--dc-paper-100);}
.dc-card--paper h3{font-family:var(--dc-fd);font-weight:600;font-size:14.5px;color:var(--dc-ink-900);margin:0 0 12px;}
.dc-card--paper input[type=email]{width:100%;font-family:var(--dc-fm);font-size:13px;padding:9px 11px;border:1px solid var(--dc-paper-200);border-radius:8px;background:#FFFFFF;color:var(--dc-ink-900);margin-bottom:9px;}
.dc-card--paper .dc-btn{width:100%;text-align:center;}

/* mobile TOC */
.dc-toc-mobile{display:none;margin:0 0 28px;border:1px solid var(--dc-paper-200);border-radius:12px;background:var(--dc-paper-050);overflow:hidden;}
.dc-toc-mobile > summary{list-style:none;cursor:pointer;font-family:var(--dc-fm);font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--dc-ink-900);padding:14px 16px;}
.dc-toc-mobile > summary::-webkit-details-marker{display:none;}
.dc-toc-mobile > summary::after{content:"+";float:right;color:var(--dc-ink-400);}
.dc-toc-mobile[open] > summary::after{content:"–";}
.dc-toc-mobile .dc-toc{padding:0 16px 14px;}

/* ---------------- Lesson nav ---------------- */
.dc-lessonnav{border-top:1px solid var(--dc-paper-200);margin-top:52px;padding-top:26px;}
.dc-lesson-meta{font-family:var(--dc-fm);font-size:12px;color:var(--dc-ink-400);text-align:center;margin:0 0 18px;}
.dc-lessonnav-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.dc-navbox{border:1px solid var(--dc-paper-200);border-radius:12px;padding:15px 18px;text-decoration:none;display:block;background:var(--dc-paper-000);transition:border-color .15s,background .15s;}
.dc-navbox:hover{border-color:var(--dc-ink-900);background:var(--dc-paper-050);}
.dc-navbox .dc-navlabel{font-family:var(--dc-fm);font-size:11.5px;color:var(--dc-ink-400);display:block;margin-bottom:6px;}
.dc-navbox .dc-navtitle{font-family:var(--dc-fd);font-weight:600;font-size:15.5px;color:var(--dc-ink-900);display:block;line-height:1.3;}
.dc-navbox--next{text-align:right;}
.dc-navbox--empty{opacity:.4;pointer-events:none;}

/* ---------------- Challenge band ---------------- */
.dc-challenge{background:var(--dc-lime-100);border-top:1px solid var(--dc-lime-400);margin-top:56px;padding:52px 0;}
.dc-challenge-grid{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:center;}
.dc-challenge .dc-eyebrow{font-family:var(--dc-fm);font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:#5A6B12;margin:0 0 10px;}
.dc-challenge h2{font-family:var(--dc-fd);font-weight:800;font-size:29px;line-height:1.15;color:var(--dc-ink-900);margin:0 0 12px;}
.dc-challenge p{font-size:15px;line-height:1.6;color:var(--dc-ink-600);margin:0;max-width:48ch;}
.dc-challenge-card{background:var(--dc-ed-bg);border-radius:12px;overflow:hidden;border:1px solid var(--dc-ed-line);}
.dc-challenge-card .dc-code-bar{padding:9px 13px;}
.dc-challenge-card .dc-cc-body{padding:16px 18px;}
.dc-challenge-card .dc-cc-code{font-family:var(--dc-fm);font-size:12.5px;line-height:1.6;color:var(--dc-ed-text);margin:0 0 18px;white-space:pre;overflow-x:auto;}
.dc-challenge-card h3{font-family:var(--dc-fd);font-weight:700;font-size:16.5px;color:#FFFFFF;margin:0 0 14px;}
.dc-cc-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}

/* ---------------- Keep learning ---------------- */
.dc-keep{background:var(--dc-paper-000);padding:56px 0 72px;}
.dc-keep h2{font-family:var(--dc-fd);font-weight:800;font-size:27px;color:var(--dc-ink-900);margin:0 0 26px;}
.dc-keep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.dc-kcard{border:1px solid var(--dc-paper-200);border-radius:12px;overflow:hidden;background:var(--dc-paper-000);display:flex;flex-direction:column;transition:border-color .15s,transform .15s;}
.dc-kcard:hover{border-color:var(--dc-ink-900);transform:translateY(-2px);}
.dc-kthumb{background:var(--dc-ed-bg);padding:14px 16px 18px;}
.dc-kthumb .dc-dots{margin-bottom:12px;}
.dc-kbar{height:6px;border-radius:3px;margin-bottom:7px;}
.dc-kbody{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1;gap:9px;}
.dc-kcard .dc-pill{align-self:flex-start;}
.dc-kcard h3{font-family:var(--dc-fd);font-weight:600;font-size:16px;line-height:1.28;margin:0;}
.dc-kcard h3 a{color:var(--dc-ink-900);text-decoration:none;}
.dc-kcard p{font-size:13.5px;line-height:1.55;color:var(--dc-ink-600);margin:0;}
.dc-kmore{font-family:var(--dc-fm);font-size:12.5px;font-weight:600;color:var(--dc-ink-900);text-decoration:none;margin-top:auto;padding-top:6px;}
.dc-kmore:hover{text-decoration:underline;text-decoration-color:var(--dc-lime-600);}

/* ---------------- Comments ---------------- */
.dc-comments{background:var(--dc-paper-050);border-top:1px solid var(--dc-paper-200);padding:48px 0 60px;}
.dc-comments .dc-wrap{max-width:820px;}
.dc-comments h2,.dc-comments h3{font-family:var(--dc-fd);font-weight:700;color:var(--dc-ink-900);}
.dc-comments input[type=text],.dc-comments input[type=email],.dc-comments input[type=url],.dc-comments textarea{font-family:var(--dc-fb);border:1px solid var(--dc-paper-200);border-radius:9px;padding:11px 13px;background:#FFFFFF;width:100%;}
.dc-comments .submit{font-family:var(--dc-fm);font-size:13px;font-weight:700;background:var(--dc-ink-900);color:#FFFFFF;border:0;border-radius:9px;padding:11px 20px;cursor:pointer;}
.dc-comments .submit:hover{background:var(--dc-navy-700);}

/* ---------------- Responsive ---------------- */
@media (max-width:1000px){
  .dc-grid{grid-template-columns:1fr;gap:0;}
  .dc-side{display:none;}
  .dc-toc-mobile{display:block;}
  .dc-challenge-grid{grid-template-columns:1fr;gap:28px;}
  .dc-keep-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  .dc-wrap{padding:0 18px;}
  .dc-hero{padding:28px 0 34px !important;}
  .dc-title{max-width:none;}
  .dc-keep-grid{grid-template-columns:1fr;}
  .dc-lessonnav-grid{grid-template-columns:1fr;}
  .dc-navbox--next{text-align:left;}
  .dc-article{font-size:15px;}
  .dc-article h2{font-size:22px;}
}

/* Kill leftovers from the default Astra single layout */
.dc-single .ast-single-post .entry-header,
.dc-single .ast-single-post .post-thumb-img-content,
.dc-single #ez-toc-container{display:none !important;}
.dc-single #primary{margin:0 !important;padding:0 !important;width:100% !important;}
.dc-single #content{padding:0 !important;margin:0 !important;background:var(--paper-000,#FFFFFF);}
.dc-single .ast-container{max-width:none !important;width:100% !important;padding:0 !important;margin:0 !important;}
/* Astra sets .site-content .ast-container{display:flex} above 922px, which
   makes .dc-post a flex item that shrinks to its content and hugs the left. */
.dc-single #content > .ast-container,
.dc-single .site-content > .ast-container{display:block !important;}
.dc-single .dc-post{width:100%;}


/* --- Comments: beat Astra's own form styling ---------------------- */
.dc-comments .comment-respond,
.dc-comments .ast-comment-list li.depth-1{background:transparent !important;padding:0 !important;border:0 !important;margin-left:0 !important;margin-right:0 !important;}
.dc-comments input[type=submit],
.dc-comments .submit{background:var(--dc-ink-900) !important;color:#FFFFFF !important;border:0 !important;border-radius:9px !important;font-family:var(--dc-fm) !important;font-size:13px !important;font-weight:700 !important;padding:11px 22px !important;width:auto !important;text-transform:none !important;}
.dc-comments input[type=submit]:hover,
.dc-comments .submit:hover{background:var(--dc-navy-700) !important;}
.dc-comments .comment-form-cookies-consent label,
.dc-comments .comment-notes{font-size:13px;color:var(--dc-ink-600);}


/* DC: kill Astra card styling on Xpro band wrappers */
.xpro-theme-builder-header .ast-article-single,
#xpro-theme-builder-footer .ast-article-single,
.dc-single .ast-article-single,
.dc-single.ast-separate-container .ast-article-single {
    background: transparent !important;
    padding: 0 !important;
    margin: 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    max-width: none !important;
    width: 100% !important;
}
.dc-single .site-content,
.dc-single #content {
    background: transparent !important;
}


/* ===== DC responsive overhaul (tablet + mobile) ===== */

/* --- Base hardening (all widths) --- */
body.dc-single{overflow-x:clip;}
.dc-article{overflow-wrap:break-word;}
.dc-article img{max-width:100%;height:auto;}
.dc-article iframe{max-width:100%;}
.dc-article table{display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border-collapse:collapse;}
.dc-code{max-width:100%;}
.dc-code pre{-webkit-overflow-scrolling:touch;}
.dc-challenge-card{max-width:100%;overflow:hidden;}

/* --- Tablet (641px - 1000px) --- */
@media (max-width:1000px){
  .dc-wrap{padding:0 26px;}
  .dc-body{padding:40px 0 8px !important;}
  .dc-hero{padding:34px 0 40px !important;}
  .dc-title{max-width:none;}
  .dc-challenge-card{max-width:560px;}
  .dc-side-label{margin-top:4px;}
}

/* --- Mobile (<= 640px) --- */
@media (max-width:640px){
  .dc-wrap{
    padding-left:max(18px, env(safe-area-inset-left));
    padding-right:max(18px, env(safe-area-inset-right));
  }
  .dc-hero{padding:26px 0 32px !important;}
  .dc-body{padding:32px 0 8px !important;}
  .dc-title{font-size:clamp(25px,7.2vw,32px);line-height:1.16;}
  .dc-sub{font-size:15.5px;line-height:1.55;}
  .dc-badges{gap:8px;margin-bottom:14px;}
  .dc-crumbs{font-size:11px;gap:6px;}
  .dc-crumbs .dc-cur{display:none;}
  .dc-byline{font-size:11.5px;}

  /* code panels */
  .dc-code pre{padding:13px 14px;}
  .dc-code pre code{font-size:12.5px;line-height:1.65;}
  .dc-code-bar{gap:8px;padding:8px 12px;overflow-x:auto;scrollbar-width:none;}
  .dc-code-bar::-webkit-scrollbar{display:none;}
  .dc-code-tab{white-space:nowrap;flex:none;}
  .dc-code-foot{padding:8px 12px;}
  .dc-code-copy{padding:8px 10px;}

  /* prose */
  .dc-article :not(pre) > code{white-space:normal;overflow-wrap:anywhere;}
  .dc-article h2{font-size:21px;}
  .dc-article h3{font-size:17px;}
  .dc-article blockquote{padding-left:14px;}

  /* bands */
  .dc-challenge{padding:38px 0;}
  .dc-challenge-grid{gap:22px;}
  .dc-keep{padding:40px 0 52px;}
  .dc-keep-grid{gap:16px;}
  .dc-kbody{padding:14px 16px 16px;}

  /* lesson nav */
  .dc-navbox{padding:14px 16px;}
  .dc-navbox--empty{display:none;}

  /* touch targets */
  .dc-btn{padding:12px 20px;}
  .dc-toc-mobile > summary{padding:15px 16px;}
  .dc-code-open{padding:6px 0;display:inline-block;}

  /* comments: full-width stacked fields; 16px stops iOS zoom-on-focus */
  .dc-comments{padding:38px 0 48px;}
  .dc-comments .comment-form-author,
  .dc-comments .comment-form-email,
  .dc-comments .comment-form-url{width:100%;float:none;margin:0 0 12px;padding:0;}
  .dc-comments input[type=text],
  .dc-comments input[type=email],
  .dc-comments input[type=url],
  .dc-comments textarea{font-size:16px;width:100%;}
  .dc-comments .submit,
  .dc-comments input[type=submit]{width:100% !important;padding:13px 20px !important;}
}

/* --- Small phones (<= 400px) --- */
@media (max-width:400px){
  .dc-wrap{
    padding-left:max(14px, env(safe-area-inset-left));
    padding-right:max(14px, env(safe-area-inset-right));
  }
  .dc-title{font-size:23px;}
  .dc-chip{font-size:10.5px;padding:4px 10px;}
  .dc-readtime{font-size:11px;}
  .dc-code pre code{font-size:11.5px;}
  .dc-kcard .dc-kthumb{padding:12px 14px 14px;}
}