/* appin90 — landing page */
:root {
  --bg: #fbfaf7;
  --bg-2: #f3f1ea;
  --card: #ffffff;
  --ink: #0d1021;
  --ink-2: #3b3f55;
  --muted: #6b6f85;
  --line: #e7e4da;
  --accent: #4b3cf5;
  --accent-ink: #ffffff;
  --accent-soft: #eceafe;
  --lime: #c8f06a;
  --ok: #16a34a;
  --shadow: 0 1px 2px rgba(13, 16, 33, .04), 0 12px 40px -12px rgba(13, 16, 33, .18);
  --radius: 22px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d18; --bg-2: #12152a; --card: #141727; --ink: #f2f2f7; --ink-2: #c9cbe0; --muted: #9295ad;
    --line: #262a40; --accent: #7b6fff; --accent-soft: #221f47; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 20px 50px -20px rgba(0,0,0,.7);
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.6 var(--font); color: var(--ink); background: var(--bg); overflow-x: hidden; }
a { color: inherit; }
img, svg { display: block; }
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* env banner */
.env-banner { background: #f59e0b; color: #1c1300; text-align: center; font: 600 13px/1 var(--font); padding: 7px 12px; letter-spacing: .02em; }

/* nav */
.nav { position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(1.4) blur(14px); background: color-mix(in srgb, var(--bg) 82%, transparent); border-bottom: 1px solid transparent; transition: border-color .2s; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 20px; letter-spacing: -.02em; }
.brand b { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 15px; color: var(--ink-2); }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 999px; padding: 11px 20px; font: 600 15px/1 var(--font); cursor: pointer; text-decoration: none; transition: transform .12s, background .2s, box-shadow .2s; white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { box-shadow: 0 6px 20px -6px rgba(13,16,33,.5); }
.btn-accent { background: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink-2); }
@media (max-width: 760px) { .nav-links a:not(.btn) { display: none; } }

/* hero */
.hero { position: relative; padding: 32px 0 40px; text-align: center; }
.hero::before { content: ""; position: absolute; inset: -80px 0 auto; height: 720px; z-index: -1; pointer-events: none;
  background: radial-gradient(600px 300px at 50% 35%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 70%),
              radial-gradient(400px 220px at 72% 58%, color-mix(in srgb, var(--lime) 30%, transparent), transparent 70%); }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 8px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); font-size: 14px; color: var(--ink-2); box-shadow: var(--shadow); }
.pill i { font-style: normal; background: var(--lime); color: #1b2600; font-weight: 700; font-size: 12px; padding: 3px 8px; border-radius: 999px; }
h1 { font-size: clamp(34px, 5vw, 60px); line-height: 1.04; letter-spacing: -.04em; margin: 18px auto 12px; max-width: 17ch; font-weight: 800; }
h1 em { font-style: normal; background: linear-gradient(100deg, var(--accent), #9b5cff 60%, #e0529c); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: clamp(16px, 1.7vw, 18.5px); color: var(--ink-2); max-width: 620px; margin: 0 auto 26px; }

/* chat */
.chat { position: relative; max-width: 780px; margin: 0 auto; text-align: left; background: var(--card); border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow), 0 40px 90px -40px color-mix(in srgb, var(--accent) 45%, transparent); display: flex; flex-direction: column; height: clamp(440px, calc(100svh - 400px), 600px); overflow: hidden; }
.chat-head { display: flex; align-items: center; gap: 12px; padding: 14px 16px 14px 18px; border-bottom: 1px solid var(--line); }
.chat-head .who { flex: 1; min-width: 0; }
.chat-head strong { display: block; font-size: 15px; line-height: 1.2; }
.chat-head small { color: var(--muted); font-size: 13px; display: flex; align-items: center; gap: 6px; }
.chat-head small::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 20%, transparent); }
.icon-btn { border: 1px solid var(--line); background: var(--card); color: var(--ink-2); border-radius: 999px; height: 36px; padding: 0 12px; display: inline-flex; align-items: center; gap: 6px; font: 600 13px var(--font); cursor: pointer; }
.icon-btn:hover { color: var(--ink); border-color: var(--ink-2); }
.icon-btn svg { width: 16px; height: 16px; }
.messages { flex: 1; overflow-y: auto; padding: 22px 18px 8px; display: flex; flex-direction: column; gap: 12px; scroll-behavior: smooth; }
.msg { max-width: 86%; padding: 11px 15px; border-radius: 18px; font-size: 15.5px; line-height: 1.55; overflow-wrap: anywhere; animation: pop .22s ease-out; }
.msg p { margin: 0 0 8px; } .msg p:last-child { margin-bottom: 0; }
.msg ul { margin: 6px 0 8px; padding-left: 20px; }
.msg code { font: 13.5px var(--mono); background: color-mix(in srgb, var(--ink) 7%, transparent); padding: 1px 6px; border-radius: 6px; }
.msg a { color: var(--accent); font-weight: 600; }
.msg a.btn { color: #fff; text-decoration: none; }
.msg.user { align-self: flex-end; background: var(--ink); color: var(--bg); border-bottom-right-radius: 6px; }
.msg.user a { color: inherit; }
.msg.user code { background: rgba(255,255,255,.15); }
.msg.assistant { align-self: flex-start; background: var(--bg-2); border: 1px solid var(--line); border-bottom-left-radius: 6px; }
@media (prefers-color-scheme: dark) { .msg.assistant { background: #1b1f33; } }
.msg.event { align-self: center; max-width: 92%; background: var(--accent-soft); color: var(--ink-2); font-size: 13.5px; padding: 7px 14px; border-radius: 999px; }
.msg .cta { margin-top: 10px; }
.verify-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.verify-actions .btn { padding: 9px 14px; font-size: 14px; }
.msg a.btn-ghost, .verify-actions .btn-ghost { color: var(--ink); }
.typing { display: inline-flex; gap: 4px; padding: 14px 16px; }
.typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); animation: blink 1.2s infinite; }
.typing span:nth-child(2) { animation-delay: .15s; } .typing span:nth-child(3) { animation-delay: .3s; }
@keyframes blink { 0%, 60%, 100% { opacity: .25; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }
@keyframes pop { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.build-card { align-self: stretch; border: 1px solid var(--line); border-radius: 18px; padding: 16px; display: flex; gap: 16px; align-items: center; background: var(--card); animation: pop .22s ease-out; }
.ring { position: relative; width: 66px; height: 66px; flex: none; }
.ring svg { width: 66px; height: 66px; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 6; }
.ring .track { stroke: var(--line); }
.ring .bar { stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset .9s linear; }
.ring span { position: absolute; inset: 0; display: grid; place-items: center; font: 700 15px var(--mono); }
.build-card ol { list-style: none; margin: 0; padding: 0; font-size: 14px; color: var(--muted); display: grid; gap: 2px; }
.build-card li.done { color: var(--ink); } .build-card li.done::before { content: "✓ "; color: var(--ok); font-weight: 700; }
.build-card li.now { color: var(--ink); font-weight: 600; } .build-card li.now::before { content: "● "; color: var(--accent); }
.build-card li:not(.done):not(.now)::before { content: "○ "; }
.build-card.finished .ring .bar { stroke: var(--ok); }

.suggestions { display: flex; gap: 8px; flex-wrap: wrap; padding: 4px 18px 12px; }
.suggestions button { border: 1px solid var(--line); background: var(--card); color: var(--ink-2); border-radius: 999px; padding: 8px 14px; font: 500 14px var(--font); cursor: pointer; transition: all .15s; }
.suggestions button:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.composer { border-top: 1px solid var(--line); padding: 12px; }
.composer form { display: flex; align-items: flex-end; gap: 8px; background: var(--bg); border: 1px solid var(--line); border-radius: 20px; padding: 6px 6px 6px 16px; transition: border-color .15s, box-shadow .15s; }
.composer form:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 15%, transparent); }
.composer textarea { flex: 1; border: 0; outline: 0; resize: none; background: transparent; color: var(--ink); font: 16px/1.5 var(--font); padding: 8px 0; max-height: 160px; min-height: 24px; }
.composer textarea::placeholder { color: var(--muted); }
.send { width: 42px; height: 42px; flex: none; border-radius: 50%; border: 0; background: var(--accent); color: #fff; display: grid; place-items: center; cursor: pointer; transition: opacity .15s, transform .12s; }
.send:disabled { opacity: .35; cursor: default; }
.send svg { width: 20px; height: 20px; }
.hint { font-size: 12.5px; color: var(--muted); margin: 8px 6px 0; display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.hint a { color: var(--muted); }
.error-banner { margin: 0 18px 8px; padding: 8px 12px; border-radius: 12px; background: #fee2e2; color: #991b1b; font-size: 14px; }

.trust { display: flex; justify-content: center; gap: 22px; flex-wrap: wrap; margin-top: 22px; color: var(--muted); font-size: 14px; }
.trust span { display: inline-flex; align-items: center; gap: 6px; }
.trust svg { width: 16px; height: 16px; color: var(--ok); }

/* sections */
section { padding: 88px 0; }
.eyebrow { font: 700 13px var(--font); text-transform: uppercase; letter-spacing: .12em; color: var(--accent); }
h2 { font-size: clamp(30px, 4.2vw, 46px); line-height: 1.08; letter-spacing: -.03em; margin: 10px 0 14px; font-weight: 800; }
.section-lead { color: var(--ink-2); font-size: 18px; max-width: 620px; margin: 0 0 44px; }
.center { text-align: center; } .center .section-lead { margin-left: auto; margin-right: auto; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: step; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; position: relative; }
.step .num { font: 700 13px var(--mono); color: var(--muted); }
.step h3 { font-size: 21px; margin: 16px 0 6px; letter-spacing: -.01em; }
.step p { margin: 0; color: var(--ink-2); }
.step .art { height: 120px; border-radius: 16px; background: var(--bg-2); border: 1px solid var(--line); margin-top: 22px; display: grid; place-items: center; overflow: hidden; }
@media (prefers-color-scheme: dark) { .step .art { background: #0f1220; } }
.chip-row { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; padding: 10px; }
.chip { font-size: 12.5px; padding: 5px 10px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); color: var(--ink-2); }
.phone-mini { width: 74px; height: 104px; border-radius: 14px; border: 3px solid var(--ink); background: var(--card); padding: 6px; display: grid; gap: 4px; align-content: start; }
.phone-mini i { display: block; height: 8px; border-radius: 4px; background: var(--line); }
.phone-mini i:first-child { background: var(--accent); height: 14px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.feature { background: var(--card); padding: 28px; }
.feature .ico { width: 42px; height: 42px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.feature .ico svg { width: 22px; height: 22px; }
.feature h3 { font-size: 18px; margin: 16px 0 4px; }
.feature p { margin: 0; color: var(--ink-2); font-size: 15px; }

/* pricing */
.pricing { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
@media (prefers-color-scheme: dark) { .pricing { background: #0e1120; } }
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: stretch; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; display: flex; flex-direction: column; position: relative; }
.plan.hl { border: 2px solid var(--accent); box-shadow: var(--shadow); }
.plan .badge { position: absolute; top: -12px; left: 22px; background: var(--accent); color: #fff; font: 700 12px var(--font); padding: 4px 10px; border-radius: 999px; }
.plan h3 { margin: 0; font-size: 17px; }
.plan .users { color: var(--muted); font-size: 14px; margin: 2px 0 18px; }
.plan .price { font-size: 38px; font-weight: 800; letter-spacing: -.03em; line-height: 1; }
.plan .price small { font-size: 15px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.plan ul { list-style: none; padding: 0; margin: 20px 0 24px; display: grid; gap: 8px; font-size: 14.5px; color: var(--ink-2); flex: 1; }
.plan li { display: flex; gap: 8px; } .plan li::before { content: "✓"; color: var(--accent); font-weight: 800; }
.plan .btn { width: 100%; }
.pricing-note { margin: 26px auto 0; max-width: 640px; text-align: center; color: var(--ink-2); font-size: 15px; background: var(--card); border: 1px dashed var(--line); border-radius: 16px; padding: 14px 18px; }

/* whatsapp */
.wa { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.wa-card { background: var(--card); border: 1px solid var(--line); border-radius: 28px; padding: 28px; box-shadow: var(--shadow); text-align: center; max-width: 360px; justify-self: center; width: 100%; }
.wa-card img { width: 100%; max-width: 240px; aspect-ratio: 1; margin: 0 auto 16px; border-radius: 12px; }
.wa-card .btn { width: 100%; background: #25d366; color: #06301a; }
.wa ul { padding: 0; list-style: none; display: grid; gap: 14px; margin: 26px 0 0; }
.wa li { display: flex; gap: 12px; color: var(--ink-2); }
.wa li b { color: var(--ink); }
.wa li .dot { width: 26px; height: 26px; flex: none; border-radius: 50%; background: #dcfce7; color: #166534; display: grid; place-items: center; font-size: 14px; font-weight: 800; }

/* faq */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; font-weight: 400; font-size: 24px; line-height: 1; color: var(--muted); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--ink-2); margin: 10px 0 0; }

.final { text-align: center; padding: 72px 20px; margin: 0 20px; border-radius: 32px; background: var(--ink); color: var(--bg); position: relative; overflow: hidden; }
.final h2 { color: inherit; max-width: 16ch; margin: 0 auto 22px; }
.final .btn { background: var(--lime); color: #1b2600; font-size: 16px; padding: 15px 26px; }
.final::before { content: ""; position: absolute; inset: auto -20% -60% -20%; height: 120%; background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 55%, transparent), transparent); pointer-events: none; }
.final > * { position: relative; }

footer { padding: 40px 0 50px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: center; }
footer nav { display: flex; gap: 20px; }
footer a { text-decoration: none; } footer a:hover { color: var(--ink); }

/* modal */
dialog { border: 0; border-radius: 26px; padding: 28px; max-width: 380px; width: calc(100% - 32px); background: var(--card); color: var(--ink); box-shadow: 0 30px 80px rgba(0,0,0,.35); text-align: center; }
dialog::backdrop { background: rgba(13,16,33,.5); backdrop-filter: blur(3px); }
dialog h3 { margin: 0 0 6px; font-size: 22px; }
dialog p { color: var(--ink-2); margin: 0 0 18px; font-size: 15px; }
dialog img { width: 240px; height: 240px; margin: 0 auto 16px; border-radius: 12px; }
dialog .row { display: flex; gap: 8px; } dialog .row .btn { flex: 1; }

@media (max-width: 960px) {
  .plans { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  section { padding: 64px 0; }
  .steps, .features, .wa { grid-template-columns: 1fr; }
  .hero { padding-top: 36px; }
  .chat { height: 72vh; border-radius: 22px; margin: 0 -4px; }
  .msg { max-width: 92%; }
  .chat-head .label { display: none; }
}
@media (max-width: 520px) {
  .plans { grid-template-columns: 1fr; }
  .wrap { padding: 0 16px; }
  .final { margin: 0 12px; padding: 56px 18px; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }
@media (max-width: 760px) {
  .suggestions { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; padding-bottom: 10px; }
  .suggestions::-webkit-scrollbar { display: none; }
  .suggestions button { flex: none; }
}

/* account dialog */
.account-dialog { text-align: left; max-width: 440px; }
.account-dialog h3 { margin: 0 0 6px; }
.account-dialog input[type=email] { width: 100%; font: 16px var(--font); padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); margin: 4px 0 12px; }
.account-dialog input[type=email]:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 15%, transparent); }
.account-dialog .row { display: flex; gap: 8px; margin-top: 14px; }
.account-dialog .row .btn { flex: 1; }
.dialog-close { position: absolute; top: 10px; right: 12px; border: 0; background: none; font-size: 26px; line-height: 1; color: var(--muted); cursor: pointer; padding: 4px 8px; }
.big-icon { font-size: 42px; line-height: 1; margin-bottom: 8px; }
.form-error { color: #b91c1c; font-size: 14px; margin: -4px 0 10px; }
.muted-line { color: var(--muted); font-size: 14px; }
.chat-list { list-style: none; padding: 0; margin: 12px 0 0; max-height: 50vh; overflow: auto; border: 1px solid var(--line); border-radius: 14px; }
.chat-list li + li { border-top: 1px solid var(--line); }
.chat-list button { all: unset; box-sizing: border-box; display: flex; width: 100%; gap: 12px; align-items: center; padding: 12px 14px; cursor: pointer; }
.chat-list button:hover, .chat-list button:focus-visible { background: var(--accent-soft); }
.chat-list .t { font-weight: 700; display: block; }
.chat-list .s { color: var(--muted); font-size: 13px; }
.chat-list .grow { flex: 1; min-width: 0; }
.chat-list .grow .t { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-list .tag { font-size: 12px; font-weight: 700; padding: 3px 8px; border-radius: 99px; background: var(--bg-2); color: var(--ink-2); white-space: nowrap; }
.chat-list .tag.live { background: #dcfce7; color: #166534; }
.chat-list .current { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: 12px; }
.chat-list .empty { padding: 16px; color: var(--muted); }
@media (max-width: 480px) { .nav-cta { display: none; } }