/* Inter (variable, 400–800), servida des del mateix domini: només el subconjunt llatí */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("/fonts/inter-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #ffffff;
  --surface: #f5f7f9;
  --card: #ffffff;
  --fg: #0e1621;
  --muted: #5c6773;
  --line: #e4e8ec;
  --accent: #229ed9;
  --accent-strong: #1b8ac0;
  --accent-soft: #e8f5fc;
  --bubble-in: #ffffff;
  --bubble-bot: #effdde;
  --chat-bg: #dfe9f0;
  --radius: 14px;
  --wrap: 1080px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1621;
    --surface: #121d2a;
    --card: #17212b;
    --fg: #eef2f6;
    --muted: #93a1af;
    --line: #223040;
    --accent: #3aa9e3;
    --accent-strong: #5bb8ea;
    --accent-soft: #15293a;
    --bubble-in: #182533;
    --bubble-bot: #2b5278;
    --chat-bg: #0b141d;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--fg);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-feature-settings: "cv11", "ss01";
  font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; background: var(--accent-soft); color: var(--accent-strong); padding: 1px 6px; border-radius: 6px; }
h1, h2 { letter-spacing: -0.025em; line-height: 1.15; text-wrap: balance; margin: 0; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2rem); margin-bottom: 14px; }
p { margin: 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 20px; }
.narrow { max-width: 720px; }
.center { text-align: center; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; font-weight: 600; border-radius: 999px; transition: background 0.15s, border-color 0.15s, color 0.15s; white-space: nowrap; }
.btn:hover { text-decoration: none; }
.btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.btn-primary { background: var(--accent); color: #fff; padding: 14px 26px; font-size: 1.02rem; box-shadow: 0 6px 20px rgb(34 158 217 / 0.28); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-primary svg { width: 20px; height: 20px; fill: currentColor; }
.btn-ghost { border: 1px solid var(--line); color: var(--fg); padding: 9px 18px; font-size: 0.92rem; background: var(--card); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-strong); }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(160%) blur(10px); position: sticky; top: 0; z-index: 10; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 700; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand svg { width: 30px; height: 30px; }

/* Hero */
.hero { padding: 72px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5.4vw, 3.7rem); font-weight: 750; letter-spacing: -0.035em; }
.lead { font-size: 1.22rem; color: var(--muted); margin: 18px 0 30px; max-width: 36ch; }
.checks { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 10px; color: var(--muted); font-size: 0.98rem; }
.checks li { display: flex; gap: 10px; align-items: baseline; }
.checks li::before { content: ""; flex: 0 0 18px; height: 18px; border-radius: 50%; background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='%23229ed9' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 12px no-repeat; transform: translateY(3px); }

/* Chat mock-up */
.chat { background: var(--chat-bg); border: 1px solid var(--line); border-radius: 22px; overflow: hidden; box-shadow: 0 30px 60px -30px rgb(14 22 33 / 0.35); max-width: 440px; justify-self: end; width: 100%; }
.chat-top { display: flex; align-items: center; gap: 10px; background: var(--card); padding: 12px 16px; border-bottom: 1px solid var(--line); }
.chat-top .avatar { width: 34px; height: 34px; border-radius: 50%; background: #2aabee url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Cpath d='M14 28v8M22 22v20M30 26v12' stroke='white' stroke-width='5' stroke-linecap='round'/%3E%3Cpath d='M38 24h14M38 32h14M38 40h9' stroke='white' stroke-width='5' stroke-linecap='round'/%3E%3C/svg%3E") center / 26px no-repeat; }
.chat-top b { display: block; font-size: 0.95rem; line-height: 1.2; }
.chat-top small { color: var(--muted); font-size: 0.8rem; }
.chat-body { padding: 22px 16px 26px; display: grid; gap: 12px; }
.msg { border-radius: 16px; padding: 10px 14px; font-size: 0.95rem; line-height: 1.5; max-width: 88%; box-shadow: 0 1px 1px rgb(0 0 0 / 0.08); }
.msg-in { background: var(--bubble-in); display: flex; align-items: center; gap: 10px; border-bottom-left-radius: 6px; width: 250px; }
.play { flex: 0 0 34px; height: 34px; border-radius: 50%; background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7 5l8 5-8 5z' fill='white'/%3E%3C/svg%3E") center / 16px no-repeat; }
.wave { display: flex; align-items: center; gap: 2px; height: 24px; flex: 1; }
.wave i { flex: 1; border-radius: 2px; background: var(--accent); opacity: 0.55; }
.wave i:nth-child(odd) { height: 40%; } .wave i:nth-child(3n) { height: 85%; } .wave i:nth-child(4n) { height: 60%; } .wave i:nth-child(5n) { height: 100%; } .wave i:nth-child(7n) { height: 30%; }
.dur { font-size: 0.78rem; color: var(--muted); }
.msg-bot { background: var(--bubble-bot); justify-self: start; border-bottom-left-radius: 6px; position: relative; padding-bottom: 20px; }
.msg-bot .time { position: absolute; right: 12px; bottom: 5px; font-size: 0.72rem; color: var(--muted); }

/* Built with */
.built { border-block: 1px solid var(--line); }
.built-row { display: flex; align-items: center; justify-content: center; gap: 18px 40px; flex-wrap: wrap; padding-block: 22px; }
.eyebrow { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.built-logos { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: nowrap; align-items: center; justify-content: center; gap: 36px; }
.built-logos img { display: block; height: 24px; width: auto; }
.built-logos li:first-child img { height: 28px; }

/* Sections */
.section { padding: 80px 0; }
.section.alt { background: var(--surface); }
.sub { color: var(--muted); font-size: 1.06rem; }

.steps { list-style: none; padding: 0; margin: 36px 0 24px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.steps .n { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-strong); font-weight: 700; font-size: 0.95rem; margin-bottom: 14px; }
.note { color: var(--muted); font-size: 0.95rem; max-width: 60ch; margin-inline: auto; }

.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 760px; margin: 36px auto 0; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.plan-featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.plan-name { font-weight: 700; font-size: 1.15rem; }
.plan-desc { color: var(--muted); flex: 1; margin-bottom: 8px; }
.plan .btn-primary { padding: 11px 20px; font-size: 0.95rem; box-shadow: none; }

.faq { margin-top: 28px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 36px 20px 0; font-weight: 600; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; font-weight: 400; color: var(--muted); transition: transform 0.2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--muted); padding: 0 0 20px; margin: 0; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 40px; font-size: 0.9rem; color: var(--muted); }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); }
.disclaimer { margin-top: 18px; font-size: 0.78rem; opacity: 0.85; }

@media (max-width: 860px) {
  .hero { padding: 48px 0 48px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-copy { text-align: center; }
  .lead { margin-inline: auto; }
  .checks { display: inline-grid; text-align: left; }
  .chat { justify-self: center; }
  .steps, .plans { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
}
@media (max-width: 520px) {
  .built-row { flex-direction: column; gap: 12px; }
  .built-logos { gap: 22px; }
  .built-logos img { height: 18px; }
  .built-logos li:first-child img { height: 22px; }
}
@media (max-width: 420px) {
  .nav .btn-ghost { padding: 8px 14px; font-size: 0.85rem; }
  .msg-in { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }