/* Hero v9 (2026-11-16, founder's screenshot of claude.com's product page): top bar (logo, menu, outline +
   black button), thin sub-bar with "Explore here", hero = big serif headline left, one line, an input with the
   button inside, small chips, a small card at the bottom; a large brush illustration right (ours, generated
   with the founder's ChatGPT/Codex). Plain-words problem section right after. Our colours. */

/* top bar + sub-bar */
.topbar { display: flex; align-items: center; gap: 28px; height: 68px; padding: 0 clamp(18px, 3.4vw, 48px); border-bottom: 1px solid var(--line); background: var(--bg); position: relative; z-index: 20; }
.topbar .logo { display: inline-flex; align-items: center; gap: 9px; font: 500 21px/1 var(--serif); letter-spacing: -.01em; }
.topbar .logo .mk { width: 22px; height: 22px; }
.topbar .menu { margin-left: auto; display: flex; gap: 26px; font-size: 14.5px; color: var(--ink-2); }
.topbar .menu a:hover { color: var(--ink); }
.topbar .acts { display: flex; gap: 8px; }
.btn-o, .btn-k { display: inline-flex; align-items: center; height: 36px; padding: 0 14px; border-radius: 8px; font-size: 14px; font-weight: 500; white-space: nowrap; }
.btn-o { box-shadow: inset 0 0 0 1px rgba(10,10,12,.18); background: #fff; }
.btn-k { background: var(--ink); color: #fff; }
.subbar { display: flex; align-items: center; justify-content: space-between; height: 44px; padding: 0 clamp(18px, 3.4vw, 48px); border-bottom: 1px solid var(--line); font-size: 13px; color: var(--ink-2); position: relative; z-index: 15; }
.explore { position: relative; }
.explore summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 7px; }
.explore summary::-webkit-details-marker { display: none; }
.explore summary::after { content: ""; width: 6px; height: 6px; border-right: 1.4px solid currentColor; border-bottom: 1.4px solid currentColor; transform: rotate(45deg) translateY(-2px); }
.explore > div { position: absolute; right: 0; top: 30px; background: #fff; border-radius: 10px; box-shadow: 0 0 0 1px var(--line), 0 16px 32px -14px rgba(10,10,12,.3); padding: 6px; display: grid; min-width: 180px; }
.explore > div a { padding: 8px 10px; border-radius: 7px; color: var(--ink); }
.explore > div a:hover { background: var(--row); }
@media (max-width: 860px) { .topbar .menu { display: none; } .topbar .acts { margin-left: auto; } .topbar .btn-o { display: none; } }

/* hero */
.hero2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; align-items: center; min-height: calc(100vh - 112px); padding: clamp(40px, 6vw, 80px) clamp(18px, 3.4vw, 48px) clamp(32px, 4vw, 56px); }
.hero2 .l { display: flex; flex-direction: column; align-items: flex-start; }
.hero2 h1 { font-size: clamp(46px, 5.6vw, 88px); line-height: 1.02; letter-spacing: -.03em; }
.hero2 .sub { margin: 20px 0 0; font-size: 18px; color: var(--ink-2); max-width: 520px; }
.heroask { margin-top: 34px; display: flex; align-items: center; width: min(520px, 100%); background: #fff; border-radius: 12px; padding: 6px 6px 6px 16px; box-shadow: 0 0 0 1px rgba(10,10,12,.1), 0 2px 6px -2px rgba(10,10,12,.08); }
.heroask input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; font: 400 15.5px/1 var(--sans); color: var(--ink); }
.heroask input::placeholder { color: var(--ink-3); }
.heroask button { display: inline-flex; align-items: center; gap: 7px; height: 40px; padding: 0 15px; border: 0; border-radius: 9px; background: var(--cobalt); color: #fff; font: 500 14.5px/1 var(--sans); cursor: pointer; white-space: nowrap; }
.heroask button svg { width: 14px; height: 14px; stroke: #fff; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.chips span { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px; border-radius: 7px; background: var(--panel); font-size: 13px; color: var(--ink-2); }
.chips svg { width: 12px; height: 12px; stroke: var(--cobalt); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.peek { margin-top: clamp(40px, 6vw, 72px); width: 210px; background: #fff; border-radius: 14px; padding: 12px; box-shadow: 0 0 0 1px var(--line), 0 18px 36px -20px rgba(10,10,12,.35); display: grid; gap: 10px; }
.peek b { font-size: 13.5px; font-weight: 600; line-height: 1.3; }
.peek .th { position: relative; height: 104px; border-radius: 9px; overflow: hidden; }
.peek .th img { width: 100%; height: 100%; object-fit: cover; }
.peek .th i { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,.92); display: grid; place-items: center; }
.peek .th i svg { width: 14px; height: 14px; stroke: var(--ink); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.hero2 .r { display: grid; place-items: center; }
.hero2 .r img { width: min(620px, 100%); mix-blend-mode: multiply; }
@media (max-width: 960px) { .hero2 { grid-template-columns: 1fr; min-height: 0; } .hero2 .r { order: -1; } .hero2 .r img { width: min(420px, 90%); } .peek { display: none; } }

/* the problem, in plain words */
.problem { padding: clamp(80px, 10vw, 140px) clamp(18px, 3.4vw, 48px); text-align: center; border-top: 1px solid var(--line); }
.kicker { margin: 0 0 18px; font: 500 12.5px/1 var(--mono); color: var(--cobalt-text); text-transform: uppercase; letter-spacing: .06em; }
.problem h2 { font-size: clamp(34px, 3.6vw, 52px); line-height: 1.08; }
.cycle { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; max-width: 1080px; margin: clamp(40px, 5vw, 64px) auto 0; text-align: left; }
.cycle > div { background: #fff; border-radius: 18px; padding: 26px; box-shadow: 0 0 0 1px var(--line); }
.cycle .n { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--panel); font: 500 13px/1 var(--mono); color: var(--ink-2); }
.cycle h4 { margin: 18px 0 8px; font: 400 25px/1.15 var(--serif); letter-spacing: -.015em; }
.cycle p { margin: 0; color: var(--ink-2); }
.cycle > div:last-child { background: var(--ink); color: #fff; box-shadow: none; }
.cycle > div:last-child .n { background: rgba(255,255,255,.14); color: #fff; }
.cycle > div:last-child p { color: rgba(255,255,255,.72); }
.cost { margin: 28px auto 0; font: 500 15px/1.4 var(--mono); color: var(--ink-2); }
.problem .answer { margin-top: clamp(64px, 8vw, 110px); font-size: clamp(30px, 3vw, 44px); line-height: 1.18; max-width: 980px; margin-left: auto; margin-right: auto; }
@media (max-width: 860px) { .cycle { grid-template-columns: 1fr; } .problem .answer br { display: none; } }

/* hero buttons (founder: remove email box, chips and card; add buttons) */
.hero-btns { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.hb { display: inline-flex; align-items: center; height: 48px; padding: 0 22px; border-radius: 10px; font: 500 15.5px/1 var(--sans); white-space: nowrap; }
.hb-k { background: var(--ink); color: #fff; } .hb-k:hover { background: #26272b; }
.hb-o { background: #fff; color: var(--ink); box-shadow: inset 0 0 0 1px rgba(10,10,12,.18); } .hb-o:hover { background: var(--row); }

/* problem cards with 3D icons (founder reference, 2026-11-16) */
.problem .lead { margin: 18px auto 0; max-width: 560px; font-size: 18px; color: var(--ink-2); }
.cycle > div { padding: 22px 26px 30px; border-radius: 22px; box-shadow: 0 0 0 1px var(--line), 0 18px 40px -28px rgba(20,50,140,.35); }
.cycle .top { display: flex; align-items: flex-start; justify-content: space-between; height: 130px; margin-bottom: 6px; }
.cycle .n { width: auto; height: 26px; padding: 0 10px; border-radius: 8px; font-size: 12.5px; }
.cycle .ci { width: 150px; height: 150px; margin: -14px -12px 0 0; mix-blend-mode: multiply; }
.cycle .ci.dark { mix-blend-mode: screen; }
.cycle h4 { margin-top: 10px; font-size: 28px; }
.cycle > div:last-child { background: #060507; box-shadow: 0 0 0 1px rgba(52,120,247,.35), 0 24px 50px -24px rgba(52,120,247,.55); }