/* Same self-hosted Be Vietnam Pro as the app (docs/OIA-UI-FOUNDATION.md). */
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:400;font-display:swap;src:url('/fonts/be-vietnam-pro-vietnamese-400-normal.woff2?v=5.3.0') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:400;font-display:swap;src:url('/fonts/be-vietnam-pro-latin-400-normal.woff2?v=5.3.0') 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}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:600;font-display:swap;src:url('/fonts/be-vietnam-pro-vietnamese-600-normal.woff2?v=5.3.0') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:600;font-display:swap;src:url('/fonts/be-vietnam-pro-latin-600-normal.woff2?v=5.3.0') 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}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:700;font-display:swap;src:url('/fonts/be-vietnam-pro-vietnamese-700-normal.woff2?v=5.3.0') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:700;font-display:swap;src:url('/fonts/be-vietnam-pro-latin-700-normal.woff2?v=5.3.0') 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}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:800;font-display:swap;src:url('/fonts/be-vietnam-pro-vietnamese-800-normal.woff2?v=5.3.0') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:800;font-display:swap;src:url('/fonts/be-vietnam-pro-latin-800-normal.woff2?v=5.3.0') 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}
/* OIA landing page (docs/OIA-TRIAL-SIGNUP.md). */
:root{--ink:#101828;--muted:#475467;--line:#e4e7ec;--accent:#f79009;--accent-ink:#101828;--soft:#f5f8ff;--bg:#fff}
[hidden]{display:none!important}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.55 "Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:#1d4ed8}
img{max-width:100%;height:auto;display:block}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border-radius:10px;border:1px solid var(--ink);color:var(--ink);background:#fff;font-weight:700;text-decoration:none;cursor:pointer;font-size:15px}
.button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.button:disabled{opacity:.6;cursor:default}
.top{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 24px;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700}
.mark{display:grid;place-items:center;width:36px;height:36px;border-radius:9px;background:var(--ink);color:#fff;font-size:13px}
.top nav{display:flex;align-items:center;gap:18px}
.top nav a:not(.button){color:var(--muted);text-decoration:none;font-weight:600}
.top nav .button{min-height:36px;padding:6px 14px;white-space:nowrap}
main>section{max-width:1160px;margin:0 auto;padding:56px 24px}
h1{font-size:40px;line-height:1.15;margin:0 0 16px}
h2{font-size:28px;margin:0 0 20px}
h3{margin:0 0 6px;font-size:17px}
.hero{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}
.hero-text>p{color:var(--muted);font-size:18px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 14px}
.small{font-size:14px;color:var(--muted)}
.hero-shot{border-radius:14px;border:1px solid var(--line);box-shadow:0 20px 40px rgba(16,24,40,.12)}
.features{background:var(--soft);max-width:none!important}
.features>*{max-width:1112px;margin-left:auto;margin-right:auto}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid article{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.grid p{margin:0;color:var(--muted);font-size:15px}
.shots{display:grid;grid-template-columns:1fr 1fr 0.42fr;gap:16px;margin-top:28px;align-items:start}
.shots figure{margin:0}
.shots img{border-radius:10px;border:1px solid var(--line);background:#fff}
.shots figcaption{font-size:14px;color:var(--muted);margin-top:6px}
.steps ol{list-style:none;counter-reset:step;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.steps li{counter-increment:step;border:1px solid var(--line);border-radius:12px;padding:18px 18px 18px 60px;position:relative}
.steps li::before{content:counter(step);position:absolute;left:18px;top:16px;width:30px;height:30px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700}
.steps strong{display:block;margin-bottom:4px}
.steps span{color:var(--muted);font-size:15px}
.pricing>p{color:var(--muted)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
.pricing table{width:100%;border-collapse:collapse;min-width:560px}
.pricing th,.pricing td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:center}
.pricing th:first-child,.pricing td:first-child{text-align:left}
.pricing thead th{background:var(--soft)}
.pricing tbody td:not(:first-child){color:#067647;font-weight:700}
.pricing tr.price td{color:var(--ink);font-weight:700;background:#fffaeb}
.pricing tr.seats td{color:var(--ink);font-weight:600}
.plans{display:grid;grid-template-columns:repeat(2,minmax(0,380px));justify-content:center;gap:20px;margin:20px 0 24px}
.plan{position:relative;display:flex;flex-direction:column;gap:8px;padding:22px;border:1px solid var(--line);border-radius:14px;background:#fff}
.plan.featured{border:2px solid var(--accent);box-shadow:0 10px 30px rgba(16,24,40,.08)}
.plan .badge{position:absolute;top:-12px;left:22px;padding:2px 10px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-size:13px;font-weight:700}
.plan h3{margin:0}
.plan .amount{margin:0;display:flex;align-items:baseline;gap:4px}
.plan .amount strong{font-size:28px}
.plan .amount span,.plan .billing{color:var(--muted);font-size:14px}
.plan .billing{margin:0}
.plan ul{margin:4px 0 8px;padding-left:20px;flex:1}
.plan .button{align-self:stretch}
.offers{display:grid;grid-template-columns:1fr 1fr;gap:4px 24px;margin-top:24px;padding:18px 22px;border-radius:12px;background:var(--soft)}
.offers h3{grid-row:1;margin:0;font-size:17px}
.offers ul{margin:0;padding-left:20px}
@media (max-width:860px){.plans{grid-template-columns:minmax(0,1fr)}.offers{grid-template-columns:1fr}.offers h3{grid-row:auto}}
.signup{display:grid;grid-template-columns:.8fr 1.2fr;gap:32px;align-items:start}
.signup-intro p{color:var(--muted)}
.just-look{padding:10px 12px;border-radius:10px;background:var(--soft)}
.signup form{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:22px;border:1px solid var(--line);border-radius:14px;box-shadow:0 10px 30px rgba(16,24,40,.06)}
.signup label{display:grid;gap:6px;font-weight:600;font-size:14px}
.signup input,.signup select,.signup textarea{font:inherit;font-weight:400;padding:10px 12px;border:1px solid #d0d5dd;border-radius:9px;min-height:44px;width:100%}
.signup .wide{grid-column:1/-1}
.signup .consent{display:flex;gap:10px;align-items:flex-start;font-weight:400}
.signup .consent input{width:20px;min-height:20px;margin-top:3px;flex:0 0 auto}
.signup .hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.signup .submit{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.signup .submit small{color:#b42318}
.login-info{display:grid;grid-template-columns:max-content 1fr;gap:6px 14px;margin:12px 0;padding:12px 14px;background:#fff;border:1px solid #abefc6;border-radius:10px}.login-info dt{color:var(--muted)}.login-info dd{margin:0;font-weight:600;word-break:break-all}.done .note{font-size:14px;color:var(--muted)}
.top nav a.login{font-weight:700;color:var(--ink)}
.returning{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;max-width:1180px;margin:16px auto 0;padding:14px 18px;border:1px solid #abefc6;background:#ecfdf3;border-radius:14px}
.done{grid-column:2;padding:22px;border:1px solid #abefc6;background:#ecfdf3;border-radius:14px}
footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:24px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer.site-footer{flex-direction:column;gap:8px}
.footer-legal{display:flex;flex-direction:column;gap:2px;color:var(--ink)}
.footer-legal span:empty{display:none}
.footer-row,.footer-links{display:flex;flex-wrap:wrap;gap:6px 18px}
.footer-links a{color:var(--muted)}
.policy .updated{color:var(--muted);font-size:14px}
.policy .seller{display:grid;grid-template-columns:max-content 1fr;gap:4px 16px;margin:12px 0 20px;padding:12px 16px;border:1px solid var(--line);border-radius:12px}
.policy .seller dt{color:var(--muted)}
.policy .seller dd{margin:0}
.policy .seller [hidden]{display:none}
.policy li{margin:4px 0}
@media (max-width:600px){.policy .seller{grid-template-columns:1fr}.policy .seller dd{margin-bottom:6px}}
.policy{max-width:760px;margin:0 auto;padding:32px 24px}
.policy .draft{padding:10px 12px;border-radius:10px;background:#fffaeb;border:1px solid #fedf89}
@media (max-width:900px){.hero,.signup{grid-template-columns:1fr}.grid,.steps ol{grid-template-columns:1fr 1fr}.done{grid-column:1}.shots{grid-template-columns:1fr 1fr}.shots .phone{max-width:240px}}
@media (max-width:600px){main>section{padding:36px 16px}.top{padding:8px 16px}.top nav a:not(.button):not(.login){display:none}h1{font-size:30px}h2{font-size:24px}.grid,.steps ol,.shots{grid-template-columns:1fr}.signup form{grid-template-columns:1fr;padding:16px}.actions .button{width:100%}footer{padding:20px 16px}}

/* 2026-09-30 trust review: security, FAQ, contact (filled in from the Vendor Console) */
.trust .grid article{border:1px solid var(--line);border-radius:12px;padding:18px;background:#fff}
.faq details{border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:10px 0;background:#fff}
.faq summary{cursor:pointer;font-weight:600}
.faq details p{margin:10px 0 0;color:var(--muted)}
.contact{text-align:center}
.contact-lines{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
.contact-lines a{display:inline-block;padding:10px 16px;border:1px solid var(--line);border-radius:10px;font-weight:600}

/* 2026-10-02 checkout with MoMo (docs/OIA-MOMO-PAYMENTS.md) and the payment result page */
.plan [data-buy]{margin-top:8px}
.checkout .quote{grid-column:1/-1;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#f9fafb}.checkout .quote p{margin:2px 0}
.sandbox-note{padding:10px 12px;border-radius:10px;background:#fffaeb;border:1px solid #fedf89}
.pay-result{max-width:640px;margin:0 auto;padding:40px 24px}
.pay-state{font-size:20px;font-weight:700;padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:#fff}
.pay-state.ok{border-color:#abefc6;background:#ecfdf3}.pay-state.err{border-color:#fecdca;background:#fef3f2}.pay-state.wait{border-color:#fedf89;background:#fffaeb}
.turnstile:empty{display:none}