/* ============================================================
   Homepage (front-page) sections
   ============================================================ */

/* ---------- hero ---------- */
.hero { padding: 84px 0 72px; position: relative; }
.hero::before {
  content: ""; position: absolute; top: -90px; left: 50%; transform: translateX(-50%);
  width: 980px; height: 560px; max-width: 120vw;
  background: radial-gradient(50% 50% at 50% 42%, var(--fire-dim), transparent 70%);
  pointer-events: none; z-index: 0;
}
.hero > .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 64px; align-items: center; }
.tagline {
  display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
  border: 1px solid var(--line); border-radius: 100px; padding: 7px 14px;
}
.tagline .live { width: 7px; height: 7px; border-radius: 50%; background: var(--fire); box-shadow: 0 0 10px var(--fire); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }
h1.head { font-size: clamp(34px,4.8vw,59px); line-height: 1.05; letter-spacing: -.035em; font-weight: 800; margin: 26px 0 0; text-wrap: balance; }
h1.head .g { color: var(--acc); }
.hero p.sub { color: var(--muted); font-size: 18px; line-height: 1.65; max-width: 59ch; margin: 24px 0 0; }
.cta-row { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

/* terminal card */
.term { background: #0c0e11; border: 1px solid var(--line); border-radius: 13px; overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,.5); }
.term-bar { display: flex; align-items: center; gap: 8px; padding: 12px 14px; border-bottom: 1px solid var(--line); background: var(--bg-1); }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; background: #2c3138; }
.term-bar .tt { font-family: var(--font-mono); font-size: 12px; color: var(--faint); margin-left: 8px; }
.term-body { padding: 18px; font-family: var(--font-mono); font-size: 13.5px; line-height: 1.9; }
.term-body .c { color: var(--faint); }
.term-body .p { color: var(--acc); }
.term-body .o { color: var(--text); }
.term-body .m { color: var(--muted); }
.cursor { display: inline-block; width: 8px; height: 16px; background: var(--acc); vertical-align: -2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50%{opacity:0} }

/* ---------- stats ---------- */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-in { display: grid; grid-template-columns: repeat(3,1fr); }
.stat { padding: 38px 8px; text-align: left; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; }
.stat .num { font-size: 46px; font-weight: 800; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.stat .num .u { color: var(--fire); }
.stat .lbl { font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-top: 6px; }

/* logos */
.logos { display: grid; grid-template-columns: repeat(6,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.logos .ph { aspect-ratio: 16/8; border: 0; }
.logos-label { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); margin-bottom: 18px; }

/* expertise */
.exp { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.exp-cell { background: var(--bg-1); padding: 30px 26px; transition: background .2s; position: relative; }
.exp-cell:hover { background: var(--bg-2); }
.exp-cell .ix { font-family: var(--font-mono); font-size: 12px; color: var(--faint); }
.exp-cell h3 { font-size: 19px; font-weight: 600; margin: 30px 0 8px; }
.exp-cell p { color: var(--muted); font-size: 14px; line-height: 1.6; margin: 0; }
.exp-cell .arr { position: absolute; top: 30px; right: 26px; color: var(--faint); transition: color .2s, transform .2s; }
.exp-cell:hover .arr { color: var(--acc); transform: translate(2px,-2px); }

/* workflow */
.flow-wrap { background: var(--bg-1); border: 1px solid var(--line); border-radius: 16px; padding: 40px; }
.flow { display: grid; grid-template-columns: repeat(5,1fr); gap: 0; align-items: stretch; }
.node { text-align: center; position: relative; padding: 0 10px; }
.node .dot { width: 54px; height: 54px; margin: 0 auto; border-radius: 12px; background: var(--bg-2); border: 1px solid var(--acc-line); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); color: var(--acc); font-size: 15px; font-weight: 600; position: relative; z-index: 2; }
.node h4 { font-size: 15px; font-weight: 600; margin: 16px 0 4px; }
.node p { font-size: 12.5px; color: var(--muted); margin: 0; line-height: 1.5; }
.node:not(:last-child)::after { content: ""; position: absolute; top: 27px; left: 60%; width: 80%; height: 1px; background: linear-gradient(90deg,var(--acc-line),var(--line)); z-index: 1; }
.node:not(:last-child)::before { content: ""; position: absolute; top: 24.5px; left: 60%; width: 6px; height: 6px; border-radius: 50%; background: var(--acc); z-index: 2; box-shadow: 0 0 10px var(--acc); animation: run 3s linear infinite; }
@keyframes run { from{left:60%; opacity:0} 10%{opacity:1} 90%{opacity:1} to{left:140%; opacity:0} }

/* about portrait */
.about-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 48px; align-items: center; margin-bottom: 56px; }
.portrait-img { position: relative; margin: 0; aspect-ratio: 4/5; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background-color: var(--bg-2); background-image: repeating-linear-gradient(-45deg,rgba(255,255,255,.035) 0 1px,transparent 1px 11px); display: flex; align-items: center; justify-content: center; }
.portrait-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 12%; display: block; z-index: 1; }
.portrait-img::before { content: attr(data-label); font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; color: var(--faint); text-align: center; padding: 0 16px; text-transform: uppercase; }
.portrait-img figcaption { position: absolute; left: 12px; bottom: 12px; z-index: 2; font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; color: var(--text); background: rgba(10,11,13,.62); backdrop-filter: blur(6px); border: 1px solid var(--line); border-radius: 7px; padding: 5px 10px; }
.portrait-img .corner { position: absolute; top: 12px; right: 12px; z-index: 2; width: 9px; height: 9px; background: var(--acc); box-shadow: 0 0 12px var(--acc); }

/* courses */
.courses { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.course { background: var(--bg-1); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; transition: border-color .2s, transform .2s; }
.course:hover { border-color: var(--acc-line); transform: translateY(-3px); }
.course .ph { aspect-ratio: 16/7; border: 0; border-bottom: 1px solid var(--line); }
.course-b { padding: 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.course .tag2 { font-family: var(--font-mono); font-size: 11px; color: var(--acc); letter-spacing: .08em; text-transform: uppercase; }
.course h3 { font-size: 21px; font-weight: 700; margin: 0; letter-spacing: -.01em; }
.course p { color: var(--muted); font-size: 14px; line-height: 1.6; margin: 0; flex: 1; }
.course-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--line-2); }
.price { font-family: var(--font-mono); font-size: 15px; font-weight: 600; }
.price .free { color: var(--acc); }
.clink { font-family: var(--font-mono); font-size: 13px; color: var(--text); display: inline-flex; gap: 7px; align-items: center; }
.course:hover .clink { color: var(--acc); }

/* blog */
.posts { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.post { display: flex; flex-direction: column; gap: 14px; }
.post .ph { aspect-ratio: 16/10; border-radius: 11px; }
.post .pm { font-family: var(--font-mono); font-size: 11px; color: var(--faint); letter-spacing: .06em; display: flex; gap: 10px; }
.post h3 { font-size: 17px; font-weight: 600; margin: 0; line-height: 1.35; letter-spacing: -.01em; transition: color .2s; }
.post:hover h3 { color: var(--acc); }
.post p { color: var(--muted); font-size: 13.5px; line-height: 1.55; margin: 0; }

/* CTA / contact */
.cta-blk { background: linear-gradient(180deg,var(--bg-1),var(--bg)); border: 1px solid var(--line); border-radius: 20px; padding: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; position: relative; overflow: hidden; }
.cta-blk::before { content: ""; position: absolute; top: -40%; right: -10%; width: 420px; height: 420px; background: radial-gradient(circle,var(--fire-dim),transparent 65%); pointer-events: none; }
.cta-blk h2 { font-size: clamp(28px,3.4vw,40px); font-weight: 800; letter-spacing: -.025em; margin: 0 0 14px; line-height: 1.05; }
.cta-blk p { color: var(--muted); font-size: 16px; line-height: 1.6; margin: 0; max-width: 34ch; }
.form { display: flex; flex-direction: column; gap: 12px; position: relative; }
.form input, .form select, .form textarea { font-family: var(--font-sans); font-size: 14px; background: var(--bg-2); border: 1px solid var(--line); border-radius: 9px; padding: 13px 14px; color: var(--text); width: 100%; transition: border-color .15s; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--acc-line); }
.form input::placeholder, .form textarea::placeholder { color: var(--faint); }
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-note { font-size: 13px; margin: 4px 0 0; }
.form-note.ok { color: var(--acc); }
.form-note.err { color: var(--fire); }

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .exp, .courses, .posts { grid-template-columns: 1fr; }
  .logos { grid-template-columns: repeat(3,1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .portrait-img { max-width: 340px; }
  .flow { grid-template-columns: 1fr; gap: 22px; }
  .node:not(:last-child)::after, .node:not(:last-child)::before { display: none; }
  .cta-blk { grid-template-columns: 1fr; padding: 34px; }
  .flow-wrap { padding: 24px; }
  .stat .num { font-size: 34px; }
}