/* ============================================================
   CodingEasily – Yellow + Green Clean Tutorial Theme v3.0
   Copyright-free original design inspired by modern tutorial portals.
   ============================================================ */

:root {
  --bg-base:#f7faf6;
  --bg-soft:#eef8ee;
  --bg-card:#ffffff;
  --bg-elevated:#ffffff;
  --bg-hover:#f1f9ef;
  --bg-code:#0f172a;
  --border:#d9ead5;
  --border-strong:#b7d9af;
  --text-primary:#162315;
  --text-secondary:#39523a;
  --text-muted:#6d7f6c;
  --green:#16a34a;
  --green-dark:#0f7a35;
  --green-soft:#e8f8ed;
  --gold:#facc15;
  --gold-dark:#ca8a04;
  --gold-soft:#fff8d1;
  --cyan:#0ea5a4;
  --red:#dc2626;
  --purple:#7c3aed;
  --shadow-sm:0 2px 10px rgba(21,128,61,.08);
  --shadow-md:0 8px 26px rgba(21,128,61,.12);
  --shadow-lg:0 18px 50px rgba(21,128,61,.18);
  --font-head:'Inter','Noto Sans Devanagari',system-ui,-apple-system,Segoe UI,sans-serif;
  --font-body:'Inter','Noto Sans Devanagari',system-ui,-apple-system,Segoe UI,sans-serif;
  --font-mono:'JetBrains Mono',Consolas,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --radius-lg:22px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{background:var(--bg-base);color:var(--text-primary);font-family:var(--font-body);line-height:1.72;min-height:100vh;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
::selection{background:var(--gold);color:#111827}
.body-en .hindi-content,.body-hi .english-content{display:none!important}
.skip-link{position:absolute;left:-999px;top:10px;background:var(--green);color:#fff;padding:8px 12px;border-radius:8px;z-index:9999}.skip-link:focus{left:10px}

/* Header */
.site-header{position:sticky;top:0;z-index:250;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);box-shadow:0 2px 18px rgba(21,128,61,.08)}
.top-strip{background:linear-gradient(90deg,var(--green-dark),var(--green));color:#fff;font-size:.78rem;font-weight:600}
.top-strip-inner{max-width:1240px;margin:0 auto;display:flex;justify-content:center;gap:28px;padding:6px 20px;white-space:nowrap;overflow:hidden}
.site-nav{max-width:1240px;margin:0 auto;display:flex;align-items:center;gap:18px;padding:0 20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;font-family:var(--font-head);font-weight:900;letter-spacing:-.04em;color:var(--text-primary)}
.logo-mark{width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;font-weight:900;box-shadow:0 8px 18px rgba(22,163,74,.22)}
.logo-text{font-size:1.18rem;line-height:1}.logo-text span{color:var(--green-dark)}.logo-text strong{color:#111827;font-weight:900}.logo:hover .logo-mark{transform:translateY(-1px);transition:.2s}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;min-width:0}
.nav-link{font-weight:700;font-size:.9rem;color:var(--text-secondary);padding:9px 12px;border-radius:999px;white-space:nowrap;transition:all .18s ease}
.nav-link:hover{background:var(--green-soft);color:var(--green-dark)}
.nav-link.active{background:linear-gradient(135deg,var(--gold),#fde047);color:#1f2937;box-shadow:0 5px 16px rgba(202,138,4,.18)}
.nav-link.soon{cursor:default;color:#94a3b8;background:transparent}.badge-soon{font-size:.6rem;font-weight:900;background:var(--gold-soft);color:var(--gold-dark);padding:2px 6px;border-radius:999px;margin-left:4px;text-transform:uppercase}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.lang-toggle{display:flex;border:1px solid var(--border-strong);background:#fff;border-radius:999px;padding:3px;box-shadow:var(--shadow-sm)}
.lt-btn,.lsi-btn{border:0;background:transparent;color:var(--text-muted);font-weight:900;font-size:.75rem;letter-spacing:.04em;padding:7px 12px;border-radius:999px;cursor:pointer;transition:.18s}.lt-btn.active,.lsi-btn.active{background:var(--green);color:#fff}.hamburger{display:none;width:42px;height:42px;border:1px solid var(--border-strong);background:#fff;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}.hamburger span{width:18px;height:2px;background:var(--green-dark);border-radius:2px}

/* Homepage */
.home-hero{position:relative;overflow:hidden;background:radial-gradient(circle at 20% 15%,rgba(250,204,21,.33),transparent 34%),radial-gradient(circle at 85% 10%,rgba(22,163,74,.22),transparent 28%),linear-gradient(180deg,#fff,#f7faf6);border-bottom:1px solid var(--border)}
.home-hero-inner{max-width:1180px;margin:0 auto;padding:72px 24px 60px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr);gap:34px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--gold-soft);border:1px solid #f4df74;color:#7c5b00;border-radius:999px;padding:7px 15px;font-size:.78rem;font-weight:900;text-transform:uppercase;letter-spacing:.06em;margin-bottom:18px}.hero-title{font-family:var(--font-head);font-size:clamp(2.15rem,5vw,4.45rem);line-height:1.05;font-weight:900;letter-spacing:-.055em;color:#111827;margin-bottom:18px}.hero-title .hl{color:var(--green);position:relative}.hero-sub{color:var(--text-secondary);font-size:1.08rem;max-width:650px;margin:0 0 28px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 24px;font-family:var(--font-head);font-weight:900;font-size:.94rem;border:0;cursor:pointer;transition:all .2s}.btn-primary{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;box-shadow:0 10px 24px rgba(22,163,74,.22)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(22,163,74,.28)}.btn-secondary{background:#fff;color:var(--green-dark);border:1px solid var(--border-strong);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:var(--green-soft);transform:translateY(-2px)}.hero-stats{display:flex;gap:12px;flex-wrap:wrap}.stat-pill{background:#fff;border:1px solid var(--border);border-radius:14px;padding:10px 14px;box-shadow:var(--shadow-sm);font-size:.86rem;color:var(--text-secondary);font-weight:700}.stat-pill strong{color:var(--green-dark)}
.hero-panel{background:#fff;border:1px solid var(--border);border-radius:28px;padding:22px;box-shadow:var(--shadow-lg);position:relative}.panel-header{display:flex;align-items:center;gap:8px;margin-bottom:14px}.panel-dot{width:12px;height:12px;border-radius:50%;display:inline-block}.panel-dot.red{background:#ef4444}.panel-dot.yellow{background:#facc15}.panel-dot.green{background:#22c55e}.panel-code{background:var(--bg-code);border-radius:18px;padding:18px;color:#dbeafe;font-family:var(--font-mono);font-size:.85rem;line-height:1.7;overflow:hidden}.panel-code .g{color:#86efac}.panel-code .y{color:#fde047}.panel-code .b{color:#7dd3fc}.panel-note{margin-top:14px;background:var(--green-soft);border:1px solid var(--border);border-radius:16px;padding:12px 14px;color:var(--green-dark);font-size:.88rem;font-weight:800}
.section-head{max-width:1180px;margin:0 auto;padding:42px 24px 18px;display:flex;align-items:end;justify-content:space-between;gap:16px}.section-head h2{font-family:var(--font-head);font-size:1.7rem;font-weight:900;letter-spacing:-.03em}.section-head p{color:var(--text-muted);font-size:.95rem;margin-top:5px}.home-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:18px;max-width:1180px;margin:0 auto;padding:0 24px 58px}.lang-card{position:relative;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-sm);transition:all .22s;overflow:hidden;min-height:240px;display:flex;flex-direction:column}.lang-card::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:linear-gradient(90deg,var(--green),var(--gold));opacity:.95}.lang-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--border-strong)}.lang-card.soon{opacity:.7}.card-icon{width:58px;height:58px;border-radius:18px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1.1rem;margin-bottom:18px}.card-name{font-weight:900;font-size:1.25rem;margin-bottom:8px;color:#111827}.card-desc{color:var(--text-secondary);font-size:.92rem;line-height:1.62;flex:1}.card-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid var(--border);padding-top:16px;margin-top:18px}.card-count{font-size:.82rem;color:var(--text-muted);font-weight:700}.card-cta{background:var(--green);color:#fff;border-radius:999px;padding:7px 13px;font-size:.78rem;font-weight:900}.card-soon-badge{background:var(--gold-soft);color:var(--gold-dark);border-radius:999px;padding:7px 13px;font-size:.78rem;font-weight:900}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;max-width:1180px;margin:0 auto 65px;padding:0 24px}.feature-card{background:#fff;border:1px solid var(--border);border-radius:22px;padding:22px;box-shadow:var(--shadow-sm);text-align:center}.feature-card .icon{font-size:2rem;margin-bottom:10px}.feature-card h3{font-size:1rem;font-weight:900;color:var(--green-dark);margin-bottom:7px}.feature-card p{color:var(--text-muted);font-size:.9rem;line-height:1.55}

/* C landing */
.page-wrap{max-width:1180px;margin:0 auto;padding:26px 24px 60px}.course-hero{background:linear-gradient(135deg,#fff,var(--green-soft));border:1px solid var(--border);border-radius:28px;padding:34px;box-shadow:var(--shadow-md);position:relative;overflow:hidden;margin-bottom:34px}.course-hero::after{content:"C";position:absolute;right:28px;bottom:-50px;font-size:12rem;font-weight:900;color:rgba(22,163,74,.08);line-height:1}.course-hero h1{font-size:clamp(1.8rem,4vw,3rem);font-weight:900;letter-spacing:-.04em;line-height:1.1;margin-bottom:10px}.course-meta{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.course-meta span{background:#fff;border:1px solid var(--border);border-radius:999px;padding:7px 12px;color:var(--text-secondary);font-size:.84rem;font-weight:800}.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:14px}.topic-group-card{background:#fff;border:1px solid var(--border);border-radius:22px;padding:20px;box-shadow:var(--shadow-sm);margin-bottom:24px}.topic-group-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:15px}.group-badge{font-weight:900;font-size:.73rem;border-radius:999px;padding:5px 10px;text-transform:uppercase}.topic-list-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(245px,1fr));gap:10px}.topic-card-link{display:flex;align-items:center;gap:11px;background:#fbfefb;border:1px solid var(--border);border-radius:14px;padding:12px 13px;transition:.2s}.topic-card-link:hover{background:var(--green-soft);border-color:var(--border-strong);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.topic-card-link .num{width:30px;height:30px;border-radius:10px;background:var(--gold-soft);color:var(--gold-dark);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:.8rem;flex-shrink:0}.topic-card-link .name{font-weight:800;color:var(--text-primary);font-size:.9rem;line-height:1.35}

/* Tutorial layout */
.tutorial-layout{display:grid;grid-template-columns:292px minmax(0,1fr) 238px;max-width:1400px;margin:0 auto;min-height:calc(100vh - 100px)}
.tutorial-sidebar{border-right:1px solid var(--border);height:calc(100vh - 100px);position:sticky;top:100px;overflow-y:auto;background:#fff;padding-bottom:24px;scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}.tutorial-sidebar::-webkit-scrollbar{width:6px}.tutorial-sidebar::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px}.sidebar-lang-head{display:flex;align-items:center;gap:12px;padding:18px 16px;border-bottom:1px solid var(--border);background:#fff;position:sticky;top:0;z-index:4}.sidebar-lang-icon{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;border:0!important;display:flex;align-items:center;justify-content:center;font-weight:900}.sidebar-lang-name{font-weight:900}.sidebar-lang-sub{font-size:.78rem;color:var(--text-muted)}.sidebar-search{padding:12px}.sidebar-search input{width:100%;background:#fff;border:1px solid var(--border-strong);border-radius:999px;padding:10px 14px;color:var(--text-primary);outline:0;font-size:.88rem}.sidebar-search input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(22,163,74,.12)}.sidebar-group-label{display:flex;justify-content:space-between;align-items:center;margin:4px 8px;padding:9px 10px;border-radius:12px;cursor:pointer;font-weight:900;font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.03em}.sidebar-group-label:hover{background:var(--green-soft);color:var(--green-dark)}.sidebar-group-badge{font-size:.66rem;font-weight:900;padding:3px 8px;border-radius:999px}.sidebar-group.collapsed .sidebar-topics{display:none}.sidebar-topics{list-style:none;padding:0 8px 6px}.sidebar-topic-link{display:flex;align-items:center;gap:9px;padding:9px 9px;border-radius:12px;color:var(--text-secondary);font-weight:700;font-size:.84rem;line-height:1.3;transition:.18s}.sidebar-topic-link:hover{background:var(--green-soft);color:var(--green-dark)}.sidebar-topic-link.active{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.18)}.topic-num{width:26px;height:26px;border-radius:8px;background:rgba(250,204,21,.22);color:var(--gold-dark);display:inline-flex;align-items:center;justify-content:center;font-weight:900;font-size:.72rem;flex-shrink:0}.sidebar-topic-link.active .topic-num{background:rgba(255,255,255,.2);color:#fff}
.tutorial-main{padding:30px 38px 64px;min-width:0}.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--text-muted);font-size:.82rem;font-weight:700;margin-bottom:18px}.breadcrumb a{color:var(--green-dark)}.breadcrumb a:hover{text-decoration:underline}.breadcrumb .sep{color:#a7b4a5}.content-header{background:#fff;border:1px solid var(--border);border-radius:24px;padding:24px;box-shadow:var(--shadow-sm);margin-bottom:22px}.content-level-badge{display:inline-flex;border-radius:999px;padding:6px 11px;font-size:.75rem;font-weight:900;margin-bottom:12px}.content-title{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;letter-spacing:-.045em;line-height:1.08;margin-bottom:15px}.lang-switcher-inline{display:inline-flex;background:#f8fff7;border:1px solid var(--border);border-radius:999px;padding:4px;gap:2px}.tutorial-content{background:#fff;border:1px solid var(--border);border-radius:24px;padding:32px;box-shadow:var(--shadow-sm)}.tutorial-content h2{font-size:1.45rem;font-weight:900;letter-spacing:-.025em;margin:30px 0 12px;padding-bottom:8px;border-bottom:2px solid var(--border);color:#111827}.tutorial-content h2:first-child{margin-top:0}.tutorial-content h3{font-size:1.1rem;font-weight:900;margin:23px 0 8px;color:var(--green-dark)}.tutorial-content p{color:var(--text-secondary);margin:0 0 14px}.tutorial-content ul,.tutorial-content ol{margin:12px 0 18px 22px;color:var(--text-secondary)}.tutorial-content li{margin-bottom:7px}.tutorial-content strong{color:#111827}.tutorial-content code{font-family:var(--font-mono);font-size:.86em;background:var(--gold-soft);border:1px solid #f1dc80;border-radius:6px;padding:2px 6px;color:#5c4200}.tutorial-content table{width:100%;border-collapse:separate;border-spacing:0;margin:20px 0;border:1px solid var(--border);border-radius:16px;overflow:hidden;font-size:.9rem}.tutorial-content th{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;padding:12px 14px;text-align:left;font-weight:900}.tutorial-content td{padding:11px 14px;border-bottom:1px solid var(--border);color:var(--text-secondary);vertical-align:top}.tutorial-content tr:last-child td{border-bottom:0}.tutorial-content tr:nth-child(even) td{background:#fbfefb}.tutorial-content blockquote{border-left:4px solid var(--green);background:var(--green-soft);border-radius:0 14px 14px 0;padding:14px 18px;margin:20px 0;color:var(--text-secondary)}

/* Code */
.code-block-wrap{background:var(--bg-code);border:1px solid #24324a;border-radius:18px;margin:22px 0;overflow:hidden;box-shadow:0 12px 28px rgba(15,23,42,.18)}.code-block-header{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:#111c31;border-bottom:1px solid #24324a}.code-dots{display:flex;gap:7px;align-items:center}.dot-red,.dot-yellow,.dot-green{width:11px;height:11px;border-radius:50%;display:inline-block}.dot-red{background:#ff5f57}.dot-yellow{background:#ffbd2e}.dot-green{background:#28c840}.code-lang-tag{font-family:var(--font-mono);font-size:.72rem;font-weight:800;color:#94a3b8;margin-left:7px}.copy-btn{background:#1e293b;border:1px solid #334155;color:#dbeafe;padding:6px 12px;border-radius:999px;font-size:.72rem;font-weight:900;cursor:pointer}.copy-btn:hover{background:var(--gold);color:#111827;border-color:var(--gold)}.code-block-wrap pre{padding:20px 22px;overflow-x:auto;margin:0;font-family:var(--font-mono);font-size:.9rem;line-height:1.75;color:#dbeafe;tab-size:4}.kw{color:#93c5fd;font-weight:700}.fn{color:#86efac}.st{color:#fde68a}.cm{color:#94a3b8;font-style:italic}.nm{color:#fda4af}.pp{color:#c4b5fd}.tp{color:#67e8f9}.output-block{background:#ecfdf5;border:1px solid #bbf7d0;border-left:4px solid var(--green);border-radius:14px;padding:16px 18px;font-family:var(--font-mono);font-size:.88rem;color:#065f46;margin:12px 0 22px;white-space:pre-wrap;line-height:1.65;position:relative}.output-block::before{content:'Output';position:absolute;top:-11px;right:14px;background:#fff;color:var(--green-dark);border:1px solid #bbf7d0;border-radius:999px;padding:1px 8px;font-family:var(--font-head);font-size:.65rem;font-weight:900;text-transform:uppercase;letter-spacing:.06em}

/* Boxes and navigation */
.info-box{border-radius:18px;padding:16px 18px;margin:20px 0;border:1px solid;border-left-width:5px}.info-box.tip{background:#ecfdf5;border-color:#bbf7d0}.info-box.note{background:#eff6ff;border-color:#bfdbfe}.info-box.warn{background:var(--gold-soft);border-color:#f6df77}.info-box.error{background:#fef2f2;border-color:#fecaca}.info-box .box-title{font-weight:900;margin-bottom:7px}.info-box.tip .box-title{color:var(--green-dark)}.info-box.note .box-title{color:#1d4ed8}.info-box.warn .box-title{color:var(--gold-dark)}.info-box.error .box-title{color:#b91c1c}.info-box p,.info-box li{font-size:.9rem;color:var(--text-secondary);margin:0}.topic-nav{display:flex;gap:16px;margin-top:34px}.topic-nav-btn{display:flex;align-items:center;gap:12px;flex:1;background:#fff;border:1px solid var(--border);border-radius:18px;padding:16px 18px;color:inherit;transition:.2s;max-width:49%;box-shadow:var(--shadow-sm)}.topic-nav-btn:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:var(--shadow-md)}.tnb-label{font-size:.7rem;color:var(--text-muted);font-weight:900;text-transform:uppercase;letter-spacing:.08em}.tnb-title{font-weight:900;font-size:.92rem;color:#111827;line-height:1.35}.tutorial-right{border-left:1px solid var(--border);padding:28px 16px;position:sticky;top:100px;height:calc(100vh - 100px);overflow-y:auto;background:#fff}.right-section{margin-bottom:26px}.right-title{font-weight:900;font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px}.toc-list{list-style:none}.toc-list a{display:block;color:var(--text-secondary);font-size:.83rem;font-weight:700;padding:7px 10px;border-left:3px solid var(--border);border-radius:0 10px 10px 0;line-height:1.35}.toc-list a:hover{background:var(--green-soft);border-left-color:var(--green);color:var(--green-dark)}.progress-card{background:var(--green-soft);border:1px solid var(--border);border-radius:18px;padding:14px}.progress-row{display:flex;justify-content:space-between;margin-bottom:8px}.progress-label{font-size:.82rem;color:var(--text-secondary);font-weight:800}.progress-pct{font-weight:900;color:var(--green-dark)}.progress-track{height:8px;background:#fff;border-radius:999px;overflow:hidden;border:1px solid var(--border)}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--green),var(--gold));border-radius:999px;transition:width .5s}.ad-box{min-height:220px;background:#fffdf0;border:1px dashed #d6c15d;border-radius:18px;display:flex;align-items:center;justify-content:center;text-align:center;color:#8a6a00;font-weight:800;font-size:.8rem;padding:20px}

/* Static pages */
.static-page{max-width:980px;margin:0 auto;padding:42px 24px 70px}.static-card{background:#fff;border:1px solid var(--border);border-radius:28px;padding:34px;box-shadow:var(--shadow-md)}.static-card h1{font-size:clamp(2rem,4vw,3rem);font-weight:900;letter-spacing:-.045em;line-height:1.1;margin-bottom:16px}.static-card h2{font-size:1.35rem;font-weight:900;margin:28px 0 10px;color:var(--green-dark)}.static-card p,.static-card li{color:var(--text-secondary);margin-bottom:12px}.static-card ul{margin-left:20px}.notice-box{background:var(--green-soft);border:1px solid var(--border);border-radius:18px;padding:16px;margin:18px 0;color:var(--green-dark);font-weight:700}

/* Footer */
.site-footer{background:#102113;color:#dfeee1;border-top:5px solid var(--gold);padding:46px 24px 22px;margin-top:0}.footer-inner{max-width:1180px;margin:0 auto;display:flex;gap:46px;justify-content:space-between;flex-wrap:wrap}.footer-brand{max-width:340px}.footer-logo .logo-text strong{color:#fff}.footer-brand p{color:#b9cfbc;font-size:.9rem;margin-top:12px}.footer-links{display:flex;gap:46px;flex-wrap:wrap}.footer-links h4{font-size:.8rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:var(--gold);margin-bottom:12px}.footer-links a,.footer-links span{display:block;color:#b9cfbc;font-size:.9rem;margin-bottom:8px}.footer-links a:hover{color:#fff;text-decoration:underline}.footer-links small{color:#f4d94d}.footer-bottom{max-width:1180px;margin:30px auto 0;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;text-align:center;color:#9bb59e;font-size:.82rem}

/* Responsive */
@media(max-width:1120px){.tutorial-layout{grid-template-columns:270px minmax(0,1fr)}.tutorial-right{display:none}.top-strip-inner{justify-content:flex-start}.nav-links{gap:0}.nav-link{font-size:.84rem;padding:8px 9px}.home-hero-inner{grid-template-columns:1fr}.hero-panel{max-width:640px}}
@media(max-width:820px){.top-strip{display:none}.site-nav{height:64px}.nav-links{position:fixed;left:14px;right:14px;top:76px;background:#fff;border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow-lg);padding:12px;display:none;flex-direction:column;align-items:stretch;z-index:300}.nav-links.open{display:flex}.nav-link{border-radius:12px}.hamburger{display:flex}.tutorial-layout{grid-template-columns:1fr}.tutorial-sidebar{position:fixed;left:-310px;top:64px;width:300px;height:calc(100vh - 64px);z-index:220;transition:left .28s ease;box-shadow:10px 0 28px rgba(15,23,42,.18)}.tutorial-sidebar.open{left:0}.tutorial-main{padding:22px 16px 48px}.tutorial-content{padding:22px}.content-header{padding:20px}.home-hero-inner{padding:48px 18px 42px}.section-head{padding:34px 18px 16px}.home-grid,.feature-grid{padding-left:18px;padding-right:18px}.topic-nav{flex-direction:column}.topic-nav-btn{max-width:100%}.page-wrap{padding:22px 16px 50px}.course-hero{padding:24px}.static-page{padding:26px 16px 52px}.static-card{padding:24px}.footer-inner{flex-direction:column;gap:28px}}
@media(max-width:520px){.logo-text{font-size:1.02rem}.logo-mark{width:34px;height:34px}.lt-btn,.lsi-btn{padding:6px 9px}.hero-title{font-size:2.1rem}.hero-actions{flex-direction:column;align-items:stretch}.btn-primary,.btn-secondary{width:100%}.home-grid{grid-template-columns:1fr}.topic-list-grid{grid-template-columns:1fr}.tutorial-content table{display:block;overflow-x:auto}.code-block-wrap pre{font-size:.78rem;padding:16px}.footer-links{flex-direction:column;gap:22px}}

.course-hero.python-course::after{content:"Py";color:rgba(22,163,74,.08)}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 20px}.pill{display:inline-flex;align-items:center;background:var(--green-soft);border:1px solid var(--border);color:var(--green-dark);border-radius:999px;padding:6px 12px;font-size:.8rem;font-weight:800}.quiz-list li{margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--border)}.quiz-list em{color:var(--green-dark);font-weight:900;font-style:normal}


/* CKF final responsive patch: mobile menu, smaller text, fixed overflow */
html,body{max-width:100%;overflow-x:hidden}.site-nav{gap:12px}.nav-actions{display:flex;align-items:center;gap:8px}.topic-fab{display:none}.tutorial-main,.tutorial-content{min-width:0}.tutorial-content{font-size:15.5px;line-height:1.72}.content-title{font-size:clamp(1.75rem,3.8vw,3.1rem)}.hero-title{font-size:clamp(2.2rem,5vw,4rem)}
@media(max-width:820px){.top-strip{display:none}.site-nav{height:64px;padding:0 14px}.nav-links{position:fixed;left:12px;right:12px;top:72px;background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:0 18px 48px rgba(15,23,42,.18);padding:12px;display:none!important;flex-direction:column;align-items:stretch;z-index:300}.nav-links.open{display:flex!important}.nav-link{text-align:left;border-radius:12px}.hamburger{display:flex}.tutorial-sidebar{left:-310px}.topic-fab{display:inline-flex;position:fixed;left:14px;bottom:16px;z-index:260;border:0;background:var(--green);color:#fff;border-radius:999px;padding:10px 14px;font-weight:900;box-shadow:0 12px 28px rgba(15,23,42,.22)}.tutorial-sidebar.open{left:0}.tutorial-content{font-size:15px;padding:18px}.content-header{padding:18px}.content-title{font-size:1.75rem}.tutorial-content h2{font-size:1.25rem}.tutorial-content h3{font-size:1.04rem}.home-hero-inner{padding:38px 18px}.hero-title{font-size:2.15rem;letter-spacing:-.04em}.hero-subtitle{font-size:.98rem}.course-title{font-size:2rem}}
@media(max-width:520px){.logo-text{font-size:1rem}.lt-btn,.lsi-btn{padding:6px 8px}.tutorial-main{padding:18px 12px 44px}.content-title{font-size:1.55rem}.tutorial-content{padding:16px}.tutorial-content table{font-size:.82rem}.code-block-wrap pre{font-size:.76rem}.topic-fab{font-size:.86rem;padding:9px 12px}.hero-title{font-size:1.95rem}}

/* ===== Share this topic (student-to-student) ===== */
.share-box{margin:30px 0 8px;background:linear-gradient(135deg,var(--green-soft),#fff 70%);border:1px solid var(--border-strong);border-radius:var(--radius-lg);padding:20px 20px 18px;box-shadow:0 8px 22px rgba(22,163,74,.08)}
.share-head{display:flex;gap:13px;align-items:flex-start;margin-bottom:15px}
.share-icon{font-size:1.6rem;line-height:1;flex-shrink:0}
.share-title{font-family:var(--font-head);font-weight:900;font-size:1.05rem;color:#111827;letter-spacing:-.02em}
.share-sub{font-size:.86rem;color:var(--text-secondary);margin-top:3px;line-height:1.55}
.share-actions{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.share-btn{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--border-strong);background:#fff;color:#1f2937;font-family:var(--font-head);font-weight:800;font-size:.86rem;padding:10px 15px;border-radius:999px;cursor:pointer;transition:all .18s ease;line-height:1}
.share-btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(17,24,39,.1)}
.share-btn span:first-child{font-size:1rem}
.share-btn.wa:hover{border-color:#25d366;color:#128c44;background:#eafff1}
.share-btn.tg:hover{border-color:#229ed9;color:#176f9b;background:#e8f6fd}
.share-btn.cp:hover{border-color:var(--gold-dark);color:var(--gold-dark);background:var(--gold-soft)}
.share-btn.nt:hover{border-color:var(--green);color:var(--green-dark);background:var(--green-soft)}
.share-linkrow{display:flex}
.share-linkfield{flex:1;width:100%;border:1px dashed var(--border-strong);background:#fbfdfa;border-radius:12px;padding:10px 13px;font-family:var(--font-mono,monospace);font-size:.82rem;color:var(--text-muted);outline:none}
.share-linkfield:focus{border-color:var(--green);background:#fff;color:#1f2937}
@media(max-width:560px){.share-btn{flex:1 1 auto;justify-content:center}.share-box{padding:17px 15px 15px}}