/* EVBINOS AI Receptionist — marketing page. Self-contained; prefix-free class names kept short.
   When integrating into evbinos.com, wrap in a container class if needed to avoid collisions. */
:root {
  --ink: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-alt: #f5f8f7;
  --brand: #0f766e;
  --brand-dark: #0b4f4a;
  --brand-light: #ccfbf1;
  --warn: #b45309;
  --radius: 16px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 17px/1.6 var(--font); color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; }
a { color: var(--brand); }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 .6em; }
h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }
.center { text-align: center; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: #000; color: #fff; padding: 8px 12px; z-index: 100; }
:focus-visible { outline: 3px solid rgba(15,118,110,.5); outline-offset: 3px; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 11px 20px; border-radius: 10px; font-weight: 650; font-size: .95rem; text-decoration: none; border: 1.5px solid transparent; transition: transform .15s, background .15s, box-shadow .15s; white-space: nowrap; cursor: pointer; }
.btn:hover { transform: translateY(-1px); }
.btn-lg { padding: 14px 26px; font-size: 1.02rem; }
.btn-sm { padding: 7px 14px; font-size: .85rem; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 6px 18px rgba(15,118,110,.25); }
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-light { background: #fff; color: var(--brand-dark); }
.btn-outline-light { color: #fff; border-color: rgba(255,255,255,.6); }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.88); backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.logo-mark { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; font-weight: 800; color: #fff; background: linear-gradient(135deg, #14b8a6, #0f766e); }
.logo-text strong { display: block; letter-spacing: .1em; font-size: .9rem; }
.logo-text small { display: block; color: var(--muted); font-size: .75rem; margin-top: -2px; }
.main-nav { display: flex; gap: 22px; margin-left: 12px; }
.main-nav a { color: var(--muted); text-decoration: none; font-weight: 550; font-size: .95rem; }
.main-nav a:hover { color: var(--ink); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.lang button { border: 0; background: #fff; padding: 6px 9px; font: 650 .75rem var(--font); color: var(--muted); cursor: pointer; }
.lang button.active { background: var(--brand); color: #fff; }

.hero { padding: 72px 0 80px; background: radial-gradient(1000px 500px at 85% -10%, #d5f5ee 0, transparent 60%), radial-gradient(700px 400px at -10% 110%, #eef6ff 0, transparent 60%); }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.eyebrow { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); background: var(--brand-light); padding: 5px 10px; border-radius: 999px; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 40em; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0; }
.cta-row.center { justify-content: center; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.checks li { position: relative; padding-left: 30px; color: var(--ink); font-weight: 550; }
.checks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%; background: var(--brand-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f766e' stroke-width='3'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/12px no-repeat; }

.hero-visual { position: relative; }
.chat-card { background: #fff; border-radius: 20px; box-shadow: 0 30px 60px rgba(15,23,42,.14), 0 2px 6px rgba(15,23,42,.06); overflow: hidden; border: 1px solid var(--line); }
.chat-head { display: flex; align-items: center; gap: 12px; padding: 14px 18px; background: var(--brand); color: #fff; }
.chat-head small { display: block; opacity: .85; font-size: .78rem; }
.avatar { width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,.22); display: grid; place-items: center; font-weight: 700; font-size: .85rem; }
.online { margin-left: auto; width: 10px; height: 10px; border-radius: 50%; background: #5eead4; box-shadow: 0 0 0 4px rgba(94,234,212,.25); }
.chat-body { padding: 18px; display: grid; gap: 10px; background: #f8fafc; font-size: .93rem; }
.msg { max-width: 85%; padding: 10px 14px; border-radius: 16px; }
.msg.me { justify-self: end; background: var(--brand); color: #fff; border-bottom-right-radius: 4px; }
.msg.them { background: #fff; border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.source { display: block; margin-top: 6px; font-size: .75rem; color: var(--muted); }
.gap-toast { position: absolute; right: -10px; bottom: -22px; display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid #fde68a; color: #78350f; padding: 10px 14px; border-radius: 12px; box-shadow: 0 12px 28px rgba(15,23,42,.12); font-size: .88rem; font-weight: 600; }
.gap-toast .dot { width: 10px; height: 10px; border-radius: 50%; background: #f59e0b; }

.section { padding: 88px 0; }
.section.alt { background: var(--bg-alt); }
.section-sub { color: var(--muted); font-size: 1.08rem; max-width: 46em; margin-bottom: 40px; }
.center .section-sub { margin-left: auto; margin-right: auto; }
.steps { list-style: none; padding: 0; margin: 0 0 32px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.steps li { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.step-n { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--brand-light); color: var(--brand-dark); font-weight: 800; margin-bottom: 14px; }
.steps p { color: var(--muted); font-size: .95rem; margin: 0; }
.embed { background: #0b1f1d; color: #a7f3d0; border-radius: 12px; padding: 18px 20px; overflow-x: auto; font-size: .85rem; margin: 0; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: box-shadow .2s, transform .2s; }
.feature:hover { box-shadow: 0 16px 36px rgba(15,23,42,.08); transform: translateY(-2px); }
.feature p { color: var(--muted); font-size: .95rem; margin: 0; }
.icon { width: 44px; height: 44px; border-radius: 12px; background: var(--brand-light); display: grid; place-items: center; margin-bottom: 16px; }
.icon svg { width: 22px; height: 22px; fill: none; stroke: var(--brand-dark); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.split p { color: var(--muted); font-size: 1.05rem; }
.crosses { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.crosses li { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px 14px 48px; position: relative; font-weight: 600; }
.crosses li::before { content: "✕"; position: absolute; left: 16px; top: 13px; width: 22px; height: 22px; border-radius: 50%; background: #fee2e2; color: #b91c1c; display: grid; place-items: center; font-size: .75rem; }
.crosses li.ok::before { content: "✓"; background: var(--brand-light); color: var(--brand-dark); }
.gap-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: 0 20px 44px rgba(15,23,42,.08); display: grid; gap: 14px; }
.gap-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; }
.pill { font-size: .78rem; background: #fff7ed; color: #c2410c; padding: 4px 10px; border-radius: 999px; font-weight: 600; }
.fake-input { flex: 1; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; color: var(--muted); font-size: .92rem; background: #f8fafc; }
.gap-card .btn { justify-self: start; }

.trust { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.trust article { border-top: 3px solid var(--brand); padding-top: 18px; }
.trust p { color: var(--muted); font-size: .95rem; }

details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { cursor: pointer; font-weight: 650; list-style: none; position: relative; padding-right: 30px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: -2px; font-size: 1.4rem; color: var(--brand); }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); margin: 10px 0 0; }

.final { padding: 88px 0; background: linear-gradient(135deg, #0f766e, #0b4f4a); color: #fff; }
.final p { color: rgba(255,255,255,.85); font-size: 1.1rem; }
.site-footer { padding: 28px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 980px) {
  .main-nav { display: none; }
  .hero-grid, .split { grid-template-columns: 1fr; gap: 40px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .features, .trust { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .hide-sm { display: none; }
  .container { padding: 0 18px; }
  .hero { padding: 44px 0 64px; }
  .section, .final { padding: 60px 0; }
  .steps, .features, .trust { grid-template-columns: 1fr; }
  .gap-toast { right: 8px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }