:root {
  --ink: #0b1020;
  --ink-2: #141a2e;
  --text: #1c2233;
  --muted: #5b6478;
  --line: #e4e7ef;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --accent: #6d5efc;
  --accent-2: #19c3b3;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .06);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
a { color: inherit; }

.container { width: min(1120px, 100% - 48px); margin-inline: auto; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: .8em;
}

.btn {
  display: inline-block;
  padding: .8em 1.4em;
  border-radius: 999px;
  border: 0;
  background: linear-gradient(135deg, var(--accent), #8b6cff);
  color: #fff;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
  box-shadow: 0 6px 20px rgba(109, 94, 252, .35);
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(109, 94, 252, .45); }
.btn:disabled { opacity: .6; cursor: progress; transform: none; }
.btn-sm { padding: .5em 1.1em; font-size: .92rem; }
.btn-ghost { background: transparent; color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .35); }
.btn-ghost:hover { box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .7); }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 16, 32, .85);
  backdrop-filter: saturate(140%) blur(10px);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: .55rem; font-weight: 800; letter-spacing: .02em; text-decoration: none; font-size: 1.15rem; }
.brand-mark { width: 30px; height: 30px; color: var(--accent-2); }
.brand-dim { font-weight: 500; opacity: .7; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a:not(.btn) { text-decoration: none; opacity: .8; font-size: .95rem; }
.nav-links a:not(.btn):hover { opacity: 1; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 1.5rem; cursor: pointer; }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(900px 500px at 85% 10%, rgba(109, 94, 252, .35), transparent 60%),
    radial-gradient(700px 400px at 10% 90%, rgba(25, 195, 179, .22), transparent 60%),
    var(--ink);
  padding: 110px 0 120px;
}
.hero-inner { position: relative; z-index: 1; max-width: 1120px; }
.hero-inner > * { max-width: 640px; }
.hero .eyebrow { color: var(--accent-2); }
.grad { background: linear-gradient(90deg, #a99cff, var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 1.15rem; color: rgba(255, 255, 255, .78); }
.hero-cta { display: flex; gap: .8rem; flex-wrap: wrap; margin: 2rem 0 2.2rem; }
.hero-points { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; color: rgba(255, 255, 255, .7); font-size: .93rem; }
.hero-points li::before { content: "●"; color: var(--accent-2); margin-right: .5em; font-size: .7em; vertical-align: middle; }

.hero-chat {
  position: absolute; right: max(24px, calc((100% - 1120px) / 2)); top: 50%;
  transform: translateY(-50%);
  width: 340px;
  display: flex; flex-direction: column; gap: .7rem;
  padding: 1.2rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .35);
}
.bubble { padding: .7em 1em; border-radius: 16px; font-size: .92rem; max-width: 88%; opacity: 0; animation: pop .5s ease forwards; }
.bubble-in { background: rgba(255, 255, 255, .12); align-self: flex-start; border-bottom-left-radius: 4px; }
.bubble-out { background: linear-gradient(135deg, var(--accent), #8b6cff); align-self: flex-end; border-bottom-right-radius: 4px; }
.bubble-meta { align-self: center; font-size: .78rem; color: var(--accent-2); background: rgba(25, 195, 179, .12); border-radius: 999px; padding: .35em .9em; }
.bubble:nth-child(1) { animation-delay: .3s; }
.bubble:nth-child(2) { animation-delay: 1.1s; }
.bubble:nth-child(3) { animation-delay: 1.9s; }
.bubble:nth-child(4) { animation-delay: 2.5s; }
@keyframes pop { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.grid { display: grid; gap: 1.25rem; margin-top: 2.2rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card, .case {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow);
  transition: transform .2s ease, border-color .2s ease;
}
.card:hover, .case:hover { transform: translateY(-3px); border-color: rgba(109, 94, 252, .35); }
.card p, .case p { color: var(--muted); margin: 0; }
.card-icon {
  width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center;
  background: rgba(109, 94, 252, .1); color: var(--accent);
  font-size: 1.2rem; margin-bottom: 1rem;
}

.steps { list-style: none; padding: 0; margin: 2.2rem 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; counter-reset: none; }
.steps li { border-top: 2px solid var(--accent); padding-top: 1.2rem; }
.steps p { color: var(--muted); margin: 0; }
.step-num { display: block; font-weight: 800; font-size: .85rem; color: var(--accent); margin-bottom: .5rem; letter-spacing: .08em; }

.case-tag { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--accent-2) !important; margin-bottom: .6rem !important; }
.case-metric { margin-top: 1.2rem !important; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--text) !important; }
.case-metric strong { font-size: 1.5rem; color: var(--accent); margin-right: .3em; }
.fine { margin-top: 1.4rem; font-size: .82rem; color: var(--muted); }

.about { display: grid; grid-template-columns: 220px 1fr; gap: 3rem; align-items: start; }
.avatar {
  width: 220px; height: 220px; border-radius: 28px;
  display: grid; place-items: center;
  font-size: 4.2rem; font-weight: 800; letter-spacing: -.02em; color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
}
.role { color: var(--muted); font-weight: 600; margin-top: -.3em; }
.principles { padding: 0; list-style: none; margin: 1.4rem 0 0; display: grid; gap: .5rem; }
.principles li { padding-left: 1.6rem; position: relative; font-weight: 600; }
.principles li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }

.contact { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: start; }
.contact-alt { font-weight: 700; color: var(--accent); }
.form { display: grid; gap: 1rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.8rem; box-shadow: var(--shadow); }
.form label { display: grid; gap: .35rem; font-size: .9rem; font-weight: 600; }
.form input, .form textarea {
  font: inherit; font-weight: 400;
  padding: .75em .9em;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg-alt);
  transition: border-color .15s, box-shadow .15s;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(109, 94, 252, .15); background: #fff; }
.form .btn { justify-self: start; }
.form-status { margin: 0; font-size: .92rem; min-height: 1.4em; }
.form-status.ok { color: #0f9d7a; }
.form-status.err { color: #d23f4f; }

.footer { background: var(--ink); color: rgba(255, 255, 255, .8); padding: 28px 0; font-size: .9rem; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem; }
.footer-dim { opacity: .6; }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .hero-chat { display: none; }
}
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .about, .contact { grid-template-columns: 1fr; gap: 2rem; }
  .avatar { width: 140px; height: 140px; font-size: 2.8rem; border-radius: 22px; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 1rem;
    padding: 1.2rem 24px 1.6rem;
    background: var(--ink);
    display: none;
  }
  .nav-links.open { display: flex; }
  .section { padding: 72px 0; }
  .hero { padding: 80px 0 90px; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .bubble, .reveal { opacity: 1; transform: none; }
}