/* CodeShaala — code.techwaveacademy.com
   Modern, founder-grade storefront. Deep indigo + violet brand, saffron accent. */
:root{
  --bg:#0b1020; --bg2:#0e1430; --panel:#121a3a; --panel2:#0f1733;
  --ink:#0b1020; --line:rgba(255,255,255,.10); --line2:rgba(2,6,23,.10);
  --violet:#7c3aed; --violet2:#a855f7; --indigo:#6366f1; --cyan:#06b6d4;
  --saffron:#f59e0b; --green:#10b981; --pink:#ec4899; --red:#f87171;
  --txt:#e8ecf8; --mut:#9aa6c8; --card:#ffffff; --cardink:#0f172a; --cardmut:#475569;
  --radius:18px; --maxw:1160px;
  --grad:linear-gradient(120deg,#a855f7,#6366f1 45%,#06b6d4);
  --shadow:0 20px 50px -20px rgba(2,6,23,.6);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:
    radial-gradient(1200px 600px at 80% -10%, rgba(124,58,237,.28), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(6,182,212,.18), transparent 55%),
    var(--bg);
  color:var(--txt);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.wrap.narrow{max-width:820px}
a{color:inherit;text-decoration:none}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== NAV ===== */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:rgba(11,16,32,.72);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.02em}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:var(--grad);color:#fff;font-family:ui-monospace,monospace;font-size:15px;font-weight:700;
  box-shadow:0 8px 20px -6px rgba(124,58,237,.7)}
.brand-name b{font-weight:800;color:#fff}
.brand-name{color:#dfe5fb}
.brand.small{font-size:17px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--mut);font-weight:600;font-size:15px;transition:color .15s}
.nav-links a:hover{color:#fff}
.nav-cta{padding:9px 16px;border-radius:11px;background:var(--grad);color:#fff!important;
  box-shadow:0 10px 24px -10px rgba(124,58,237,.8)}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:22px;cursor:pointer}

/* ===== HERO ===== */
.hero{padding:64px 0 30px}
.hero-in{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.pill{display:inline-block;padding:6px 13px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:#c9d2f2;background:rgba(255,255,255,.04);margin-bottom:18px}
h1{font-size:clamp(34px,5vw,56px);line-height:1.05;letter-spacing:-.03em;margin:0 0 16px;font-weight:800}
.lede{font-size:clamp(16px,2vw,19px);color:#c4cdee;max-width:560px;margin:0 0 26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:13px;
  font-weight:700;font-size:15.5px;cursor:pointer;border:1px solid transparent;transition:transform .12s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 16px 34px -14px rgba(124,58,237,.9)}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line);color:#eaeefc}
.btn.wide{width:100%;justify-content:center}
.hero-trust{display:grid;grid-template-columns:repeat(4,auto);gap:26px}
.hero-trust div{display:flex;flex-direction:column}
.hero-trust b{font-size:24px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-trust span{font-size:12.5px;color:var(--mut)}

/* hero demo card */
.demo-card{background:linear-gradient(160deg,#0f1733,#0b1226);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transform:rotate(.4deg)}
.demo-top{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.03)}
.demo-top em{margin-left:8px;font-style:normal;font-size:12.5px;color:var(--mut);font-family:ui-monospace,monospace}
.dot{width:11px;height:11px;border-radius:50%}.dot.r{background:#ff5f56}.dot.y{background:#ffbd2e}.dot.g{background:#27c93f}
.demo-code{margin:0;padding:18px;font-family:ui-monospace,'SF Mono',Menlo,monospace;font-size:13.5px;line-height:1.7;color:#dfe7ff;overflow-x:auto}
.c-com{color:#6b7aa8}.c-kw{color:#c792ea}.c-fn{color:#82aaff}.c-str{color:#c3e88d}
.demo-out{padding:12px 18px;border-top:1px solid var(--line);background:rgba(16,185,129,.08);
  color:#7ef0c2;font-family:ui-monospace,monospace;font-size:13px}

/* ===== STRIP ===== */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.strip-in{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center;padding:16px 22px;
  font-size:14px;color:var(--mut)}
.strip-in b{color:#dbe2fb;font-weight:700}.strip-in i{color:#4a5680;font-style:normal}
.strip-in span{text-transform:uppercase;letter-spacing:.14em;font-size:11.5px;color:#6b76a0}

/* ===== BANDS ===== */
.band{padding:74px 0}
.band.alt{background:linear-gradient(180deg,rgba(255,255,255,.03),transparent)}
.h2{font-size:clamp(26px,3.4vw,38px);line-height:1.12;letter-spacing:-.02em;text-align:center;margin:0 0 14px;font-weight:800}
.h2.left{text-align:left}
.sub{text-align:center;color:#bcc6ea;max-width:720px;margin:0 auto 40px;font-size:17px}
.sub.left{text-align:left;margin-left:0}

/* grids of glass cards */
.grid{display:grid;gap:18px}
.why-grid{grid-template-columns:repeat(3,1fr)}
.offer-grid{grid-template-columns:repeat(3,1fr)}
.card{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;transition:transform .15s,border-color .2s,background .2s}
.card:hover{transform:translateY(-4px);border-color:rgba(168,85,247,.5);background:rgba(124,58,237,.08)}
.card .ic{font-size:30px;display:block;margin-bottom:12px}
.card h3{margin:0 0 8px;font-size:18px;font-weight:700;color:#fff}
.card p{margin:0;color:#b8c1e6;font-size:14.5px}

/* ===== LIVE LAB ===== */
.lab{max-width:980px;margin:0 auto;background:#0c1230;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.lab-head{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;
  background:rgba(255,255,255,.03);border-bottom:1px solid var(--line)}
.lab-tab{font-family:ui-monospace,monospace;font-size:13px;padding:6px 12px;border-radius:8px;color:#cdd6f6;
  background:rgba(124,58,237,.18)}
.lab-actions{display:flex;gap:8px}
.btn-run{background:var(--green);color:#04231a;border:0;font-weight:800;padding:8px 18px;border-radius:9px;cursor:pointer;font-size:14px}
.btn-run:hover{filter:brightness(1.08)}
.btn-run:disabled{opacity:.6;cursor:wait}
.btn-reset{background:rgba(255,255,255,.06);border:1px solid var(--line);color:#cdd6f6;border-radius:9px;width:36px;cursor:pointer;font-size:15px}
.lab-body{display:grid;grid-template-columns:1fr 1fr;min-height:300px}
#code{margin:0;border:0;resize:vertical;min-height:300px;padding:18px;background:#0c1230;color:#e6ecff;
  font-family:ui-monospace,'SF Mono',Menlo,monospace;font-size:14px;line-height:1.65;outline:none;
  border-right:1px solid var(--line);tab-size:4}
.lab-out{padding:18px;font-family:ui-monospace,monospace;font-size:13.5px;color:#cfe9dd;
  white-space:pre-wrap;overflow:auto;background:#0a0f26}
.lab-out .err{color:var(--red)}
.out-hint{color:#6b76a0;font-style:italic}
.lab-foot{display:flex;justify-content:space-between;gap:12px;padding:9px 14px;border-top:1px solid var(--line);
  background:rgba(255,255,255,.02);font-size:12.5px;color:var(--mut)}
#labStatus{font-family:ui-monospace,monospace}
.lab-tip{color:#7a86b2}

/* ===== CURRICULUM TRACK ===== */
.track{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.stage{position:relative;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:16px;
  padding:20px 18px;cursor:pointer;transition:transform .15s,border-color .2s}
.stage:hover{transform:translateY(-5px)}
.stage .badge{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 10px;border-radius:999px;margin-bottom:12px;color:#fff}
.stage .ic{font-size:30px;display:block;margin-bottom:8px}
.stage h3{margin:0 0 4px;font-size:17px;color:#fff}
.stage .focus{font-size:13px;color:#aeb8df;margin:0 0 12px;min-height:38px}
.stage ul{margin:0;padding-left:16px;color:#c2cbed;font-size:13px}
.stage ul li{margin-bottom:3px}
.stage .tools{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.stage .tools span{font-size:11px;padding:3px 9px;border-radius:7px;background:rgba(255,255,255,.07);color:#d6ddf6}
.stage .outcome{margin-top:12px;font-size:12.5px;color:#8ea0d6;border-top:1px dashed var(--line);padding-top:10px;display:none}
.stage.open .outcome{display:block}

/* ===== SAMPLE LESSON ===== */
.lesson{max-width:980px;margin:0 auto;background:var(--card);color:var(--cardink);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow)}
.lesson-hd{padding:22px 26px;background:linear-gradient(120deg,#7c3aed,#6366f1);color:#fff}
.lesson-hd .crumb{font-size:12.5px;opacity:.85;text-transform:uppercase;letter-spacing:.1em}
.lesson-hd h3{margin:6px 0 0;font-size:22px}
.lesson-bd{padding:26px}
.slide{display:grid;grid-template-columns:1.4fr 1fr;gap:20px;align-items:center;padding:18px 0;border-bottom:1px solid #eef1f8}
.slide:last-of-type{border-bottom:0}
.slide-txt h4{margin:0 0 8px;font-size:17px;color:#1e1b4b}
.slide-txt p,.slide-txt li{color:#3b4666;font-size:14.5px}
.slide-txt pre{background:#1e293b!important;color:#e2e8f0;padding:12px;border-radius:8px;overflow-x:auto;font-size:13px}
.slide-vis{min-width:0}
.obj{background:#f5f3ff;border:1px solid #e9e3ff;border-radius:12px;padding:16px 18px;margin:18px 0}
.obj b{color:#6d28d9}
.obj ul{margin:8px 0 0;padding-left:18px;color:#3b4666;font-size:14px}
.exercise{background:linear-gradient(120deg,#ecfeff,#eef2ff);border:1px solid #cffafe;border-radius:14px;padding:20px;margin-top:6px}
.exercise .xtag{font-size:12px;font-weight:800;color:var(--cyan);text-transform:uppercase;letter-spacing:.08em}
.exercise h4{margin:6px 0 8px;color:#0e7490;font-size:18px}
.exercise p{color:#334155;font-size:14.5px;margin:0 0 14px}
.exercise .btn-open{background:#0e7490;color:#fff;border:0;padding:11px 18px;border-radius:10px;font-weight:700;cursor:pointer}
.exercise .btn-open:hover{filter:brightness(1.08)}

/* ===== PRICING ===== */
.price-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;max-width:980px;margin:0 auto;align-items:start}
.price-card{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.price-card.feature{border:1.5px solid rgba(168,85,247,.6);background:linear-gradient(180deg,rgba(124,58,237,.16),rgba(255,255,255,.03));box-shadow:var(--shadow)}
.price-tag{display:inline-block;font-size:12.5px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;
  color:#e9d5ff;background:rgba(168,85,247,.25);padding:5px 12px;border-radius:999px}
.price-amt{font-size:42px;font-weight:800;margin:14px 0 4px}
.price-amt span{font-size:15px;font-weight:600;color:var(--mut)}
.price-list{list-style:none;margin:16px 0 22px;padding:0}
.price-list li{padding:8px 0 8px 28px;position:relative;color:#d4dbf3;font-size:15px;border-bottom:1px solid var(--line)}
.price-list li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.price-list li.hl{color:#fff;font-weight:700}.price-list li.hl::before{content:"★";color:var(--saffron)}
.price-note{font-size:13px;color:var(--mut);margin:12px 0 0;text-align:center}
.price-side h3{margin:0 0 14px;font-size:18px}
.tier{width:100%;border-collapse:collapse;font-size:14px}
.tier th,.tier td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line);color:#c8d1f0}
.tier th{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:#8893bd}
.tier tr.mid{background:rgba(124,58,237,.12)}
.tier tr.mid b{color:#fff}
.micro{font-size:13px;color:var(--mut);margin-top:16px;line-height:1.6}

/* ===== FOUNDER ===== */
.founder-in{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center;max-width:980px;margin:0 auto}
.founder-badge{font-size:64px;width:120px;height:120px;display:grid;place-items:center;border-radius:50%;
  background:var(--grad);box-shadow:var(--shadow)}
.sign{font-weight:700;color:#fff;margin-top:8px}
.sign span{font-weight:500;color:var(--mut)}

/* ===== FAQ ===== */
.faq{display:flex;flex-direction:column;gap:12px}
.faq details{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;padding:4px 18px}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0;font-size:16px;list-style:none;color:#eef1fc;display:flex;justify-content:space-between;align-items:center}
.faq summary::after{content:"+";color:var(--violet2);font-size:22px;font-weight:700}
.faq details[open] summary::after{content:"–"}
.faq p{margin:0 0 16px;color:#b8c1e6;font-size:14.5px}

/* ===== PILOT FORM ===== */
.band.pilot{background:linear-gradient(180deg,rgba(124,58,237,.14),transparent)}
.lead{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.lead .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.lead label{display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:#aeb8df;font-weight:600;margin-bottom:16px}
.lead label.full{grid-column:1/-1}
.lead input,.lead textarea{background:#0b1126;border:1px solid var(--line);border-radius:10px;padding:12px 14px;
  color:#eef1fc;font-size:15px;font-family:inherit;outline:none;transition:border-color .15s}
.lead input:focus,.lead textarea:focus{border-color:var(--violet2)}
.lead-msg{text-align:center;margin:14px 0 0;font-weight:700;min-height:20px}
.lead-msg.ok{color:var(--green)}.lead-msg.err{color:var(--red)}
.lead-fine{text-align:center;font-size:12.5px;color:var(--mut);margin:10px 0 0}

/* ===== FOOTER ===== */
.foot{border-top:1px solid var(--line);padding:46px 0 30px;margin-top:20px;background:rgba(0,0,0,.2)}
.foot-in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.foot-in p{color:var(--mut);font-size:14px;max-width:320px;margin:10px 0 0}
.foot-links{display:flex;flex-wrap:wrap;gap:22px;align-items:center}
.foot-links a{color:#bcc6ea;font-weight:600;font-size:14.5px}
.foot-links a:hover{color:#fff}
.foot-bottom{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);color:#6b76a0;font-size:13px;text-align:center}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .hero-in{grid-template-columns:1fr;gap:34px}
  .hero-trust{grid-template-columns:repeat(2,1fr);gap:18px}
  .why-grid,.offer-grid{grid-template-columns:1fr 1fr}
  .track{grid-template-columns:repeat(2,1fr)}
  .lab-body{grid-template-columns:1fr}#code{border-right:0;border-bottom:1px solid var(--line)}
  .slide{grid-template-columns:1fr}
  .price-wrap{grid-template-columns:1fr}
  .founder-in{grid-template-columns:1fr;text-align:center}.founder-badge{margin:0 auto}
  .nav-links{position:fixed;inset:66px 0 auto 0;flex-direction:column;background:rgba(11,16,32,.97);
    padding:18px 22px;gap:6px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .25s;align-items:stretch}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:12px 4px;border-bottom:1px solid var(--line)}
  .nav-cta{text-align:center}
  .nav-toggle{display:block}
}
@media(max-width:560px){
  .why-grid,.offer-grid,.track{grid-template-columns:1fr}
  .lead .row{grid-template-columns:1fr}
  .hero-trust{grid-template-columns:1fr 1fr}
}