/* Marketing pages of nguoila.io (site/build.js). Every rule is scoped under .site so the homepage section
   (#landing, under the chat app's start screen) can't touch the chat app. */

@font-face {
  font-family: "FS Just Awesome Script";
  src: url("/site/fonts/FS-Just-Awesome-Script.otf") format("opentype");
  font-display: swap;
}

.site {
  --pink: #ee1c67;
  --purple: #7b2ceb;
  --blue: #1cbbf6;
  --ink: #1d1b2e;
  --muted: #625f78;
  --line: #ebe8f3;
  --bg: #fcfcfc;
  --tint: #f6f2fd;
  --card: #fff;
  --grad: linear-gradient(115deg, #1cbbf6 0%, #7b2ceb 48%, #ee1c67 100%);
  --radius: 18px;
  --shadow: 0 10px 30px rgba(52, 26, 110, 0.08);
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Be Vietnam Pro", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-align: left;
}
.site *, .site *::before, .site *::after { box-sizing: border-box; }
.site img { max-width: 100%; height: auto; display: block; }
.site a { color: var(--purple); text-decoration: none; }
.site a:hover { text-decoration: underline; }
.site h1, .site h2, .site h3 { line-height: 1.25; margin: 0 0 0.5em; letter-spacing: -0.01em; }
.site h1 { font-size: clamp(32px, 5vw, 52px); font-weight: 800; }
.site h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; }
.site h3 { font-size: 19px; font-weight: 700; }
.site p { margin: 0 0 1em; }
.site .wrap { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.site .wrap.narrow { max-width: 780px; }
.site .center { text-align: center; }
.site .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.site .script { font-family: "FS Just Awesome Script", cursive; font-size: 30px; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; padding: 4px 2px; }
.site .eyebrow { font-size: 14px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--pink); margin-bottom: 10px; }
.site .lead { font-size: 19px; color: var(--muted); }
.site .ic { flex: none; }

/* Buttons */
.site .btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 26px; border-radius: 999px; font-weight: 700; font-size: 16px; line-height: 1; transition: transform 0.15s ease, box-shadow 0.15s ease; text-decoration: none !important; }
.site .btn:hover { transform: translateY(-1px); }
.site .btn:active { transform: scale(0.97); }
.site .btn-grad { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(123, 44, 235, 0.3); }
.site .btn-grad .ic, .site .btn-white .ic { stroke: currentColor; }
.site .btn-ghost { color: var(--ink); border: 2px solid var(--line); background: #fff; }
.site .btn-white { background: #fff; color: var(--purple); }
.site .btn-sm { padding: 10px 18px; font-size: 15px; }
.site .link-arrow { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; margin-top: 10px; }

/* Header */
.site .s-header { position: sticky; top: 0; z-index: 50; background: rgba(252, 252, 252, 0.88); backdrop-filter: saturate(160%) blur(12px); -webkit-backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid var(--line); }
.site .s-header-in { display: flex; align-items: center; gap: 24px; height: 68px; }
.site .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none !important; }
.site .brand img { width: 40px; height: auto; }
.site .s-nav { display: flex; gap: 22px; margin-left: auto; }
.site .s-nav a { color: var(--ink); font-weight: 600; font-size: 15px; }
.site .s-nav a[aria-current="page"] { color: var(--purple); }
.site .lang-switch { font-weight: 600; font-size: 14px; color: var(--muted); padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; white-space: nowrap; }
.site .lang-switch:hover { color: var(--purple); text-decoration: none; border-color: var(--purple); }
.site .s-footer .footer-lang { display: inline-block; color: #fff; border: 1px solid #3a3652; border-radius: 999px; padding: 4px 14px; font-weight: 600; }
.site .s-menu { display: none; margin-left: auto; position: relative; }
.site .s-menu summary { list-style: none; cursor: pointer; padding: 6px; }
.site .s-menu summary::-webkit-details-marker { display: none; }
.site .s-menu nav { position: absolute; right: 0; top: 46px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 8px; display: flex; flex-direction: column; min-width: 220px; }
.site .s-menu nav a { padding: 10px 14px; color: var(--ink); font-weight: 600; border-radius: 10px; }
.site .s-menu nav a:hover { background: var(--tint); text-decoration: none; }

/* Sections */
.site .sec { padding: 76px 0; }
.site .sec-tint { background: var(--tint); }
.site .sec-title { margin-bottom: 28px; }
.site .page-hero { padding: 64px 0 28px; background: radial-gradient(1200px 400px at 85% -10%, rgba(28, 187, 246, 0.14), transparent), radial-gradient(900px 400px at 0% 0%, rgba(238, 28, 103, 0.08), transparent); }
.site .split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.site .split.rev { grid-template-columns: 0.8fr 1.2fr; }
.site .grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.site .grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-bottom: 32px; }
.site .card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.site .feature .ic { margin-bottom: 14px; width: 44px; height: 44px; padding: 8px; border-radius: 14px; background: var(--tint); }
.site .feature p { color: var(--muted); font-size: 16px; margin: 0; }

/* Steps */
.site .steps { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 22px; }
.site .step { position: relative; padding-left: 62px; }
.site .step .num { position: absolute; left: 0; top: 0; width: 44px; height: 44px; border-radius: 50%; background: var(--grad); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: 18px; }
.site .step p { color: var(--muted); margin: 0; }
.site .sec:not(.sec-tint) > .wrap > .steps { grid-template-columns: repeat(3, 1fr); }

/* Hero (homepage section) */
.site .landing-intro { padding-top: 56px; border-top: 1px solid var(--line); }
.site .hero-title { font-size: clamp(34px, 5.2vw, 58px); }
.site .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.site .hero-art { position: relative; min-height: 560px; display: grid; place-items: center; }
.site .blob { position: absolute; border-radius: 50%; filter: blur(8px); opacity: 0.55; }
.site .blob.b1 { width: 340px; height: 340px; background: radial-gradient(circle at 30% 30%, #1cbbf6, transparent 70%); top: 20px; left: 10px; }
.site .blob.b2 { width: 380px; height: 380px; background: radial-gradient(circle at 70% 70%, #ee1c67, transparent 70%); bottom: 10px; right: 0; }
.site .float-bubble { position: absolute; z-index: 2; display: inline-flex; align-items: center; gap: 8px; background: #fff; border-radius: 16px 16px 16px 4px; padding: 10px 14px; font-weight: 700; font-size: 14px; box-shadow: var(--shadow); animation: site-float 6s ease-in-out infinite; }
.site .fb1 { top: 70px; left: 0; }
.site .fb2 { top: 250px; right: 0; animation-delay: -2s; border-radius: 16px 16px 4px 16px; }
.site .fb3 { bottom: 70px; left: 20px; animation-delay: -4s; }
@keyframes site-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@media (prefers-reduced-motion: reduce) { .site .float-bubble { animation: none; } }

/* Device frames */
.site .phone { position: relative; z-index: 1; width: 290px; padding: 12px; border-radius: 46px; background: #15131f; box-shadow: 0 30px 60px rgba(40, 20, 90, 0.28); }
.site .phone img { border-radius: 36px; }
.site .phone.small { width: 260px; margin: 0 auto; }
.site .browser { margin: 0; border-radius: 16px; overflow: hidden; background: #fff; box-shadow: 0 30px 60px rgba(40, 20, 90, 0.18); border: 1px solid var(--line); }
.site .browser-bar { display: flex; align-items: center; gap: 7px; padding: 12px 14px; background: #f1eff6; }
.site .browser-bar i { width: 11px; height: 11px; border-radius: 50%; background: #d9d5e5; }
.site .browser-bar span { margin-left: 12px; font-size: 13px; color: var(--muted); background: #fff; padding: 3px 14px; border-radius: 999px; }

/* Lists */
.site .checks { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 14px; }
.site .checks li { display: flex; gap: 12px; align-items: flex-start; }
.site .checks .ic { margin-top: 3px; }

/* FAQ */
.site .faq { display: grid; gap: 12px; margin-bottom: 10px; }
.site .faq details { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 0 22px; }
.site .faq summary { cursor: pointer; font-weight: 700; padding: 18px 28px 18px 0; position: relative; list-style: none; }
.site .faq summary::-webkit-details-marker { display: none; }
.site .faq summary::after { content: "+"; position: absolute; right: 0; top: 14px; font-size: 24px; color: var(--purple); }
.site .faq details[open] summary::after { content: "–"; }
.site .faq details p { color: var(--muted); margin: 0 0 18px; }

/* Blog */
.site .post-card { padding: 0; overflow: hidden; color: var(--ink); text-decoration: none !important; transition: transform 0.15s ease; }
.site .post-card:hover { transform: translateY(-3px); }
.site .post-card-body { padding: 18px 22px 22px; }
.site .post-card time { font-size: 13px; color: var(--muted); }
.site .post-card h3 { margin: 6px 0 8px; }
.site .post-card p { color: var(--muted); font-size: 15px; margin: 0; }
.site .post-cover { border-radius: var(--radius); margin: 8px 0 0; box-shadow: var(--shadow); }

/* Article text */
.site .prose h2 { font-size: 26px; margin: 1.6em 0 0.6em; }
.site .prose ul, .site .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.site .prose li { margin-bottom: 0.5em; }
.site .prose strong { color: var(--ink); }
.site .legal h2 { font-size: 22px; }
.site .legal h3 { font-size: 18px; margin-top: 1.4em; }

/* Stores */
.site .stores { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 18px; }
.site .store { display: inline-flex; align-items: center; gap: 12px; padding: 12px 22px; border-radius: 16px; background: #15131f; color: #fff; font-weight: 700; text-decoration: none !important; }
.site .store .ic { stroke: #fff; }
.site .store small { display: block; font-size: 12px; font-weight: 500; opacity: 0.75; }
.site .store span { line-height: 1.2; text-align: left; }

/* Call to action band */
.site .cta-band { background: var(--grad); color: #fff; padding: 56px 0; }
.site .cta-in { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site .cta-band h2 { color: #fff; margin-bottom: 6px; }
.site .cta-band p { margin: 0; opacity: 0.92; }

/* Footer */
.site .s-footer { background: #15131f; color: #c9c6d6; padding: 56px 0 26px; font-size: 15px; }
.site .s-footer-in { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.site .s-footer h3 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.site .s-footer a { display: block; color: #c9c6d6; margin-bottom: 8px; }
.site .s-footer .brand { display: inline-flex; margin-bottom: 12px; }
.site .s-copy { border-top: 1px solid #2c2940; margin-top: 30px; padding-top: 20px; font-size: 13px; color: #8f8ba3; }

/* Phones and tablets */
@media (max-width: 900px) {
  .site .s-nav, .site .s-header .btn-sm, .site .s-header .lang-switch { display: none; }
  .site .s-menu { display: block; }
  .site .split, .site .split.rev { grid-template-columns: 1fr; gap: 36px; }
  .site .grid3, .site .sec:not(.sec-tint) > .wrap > .steps { grid-template-columns: 1fr 1fr; }
  .site .s-footer-in { grid-template-columns: 1fr 1fr; }
  .site .hero-art { min-height: 480px; }
}
@media (max-width: 600px) {
  .site { font-size: 16px; }
  .site .sec { padding: 52px 0; }
  .site .grid3, .site .grid2, .site .sec:not(.sec-tint) > .wrap > .steps { grid-template-columns: 1fr; }
  .site .s-footer-in { grid-template-columns: 1fr; }
  .site .phone { width: 240px; border-radius: 38px; padding: 10px; }
  .site .phone img { border-radius: 30px; }
  .site .float-bubble { font-size: 13px; padding: 8px 12px; }
  .site .fb2 { right: -6px; }
  .site .cta-in { flex-direction: column; align-items: flex-start; }
}

/* Homepage section: shown only under the start screen (the login page adds body.show-landing).
   Without JavaScript (crawlers) it's always visible. */
html.js #landing { display: none; }
html.js body.show-landing #landing { display: block; }