/* NFRNS — heysam.bot (nfrns.com) */
:root{
  /* brand: ink, paper, teal; slate for secondary text; mint only on dark surfaces */
  --ink:#0B0F14; --paper:#F7F7F4; --panel:#FFFFFF; --muted:#5B6470; --line:#E3E4E0;
  --teal:#0F6E6B; --teal-ink:#FFFFFF; --teal-wash:#E4F3F1; --mint:#8FE3CF;
  --radius:14px;
  /* the old names, kept for the partners, developers and hello pages */
  --sea:var(--teal); --sea-ink:var(--teal-ink); --sea-wash:var(--teal-wash); --stone:var(--paper); --ink-2:var(--muted);
  --coral:var(--teal); --coral-wash:var(--teal-wash); --night:var(--ink);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
h1,h2,h3{font-family:"Space Grotesk",Inter,system-ui,sans-serif;font-weight:700;letter-spacing:-0.02em;margin:0}
p{margin:0}
a{color:var(--teal)}
::selection{background:var(--teal-wash);color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:6px}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
.fine{font-size:14px;color:var(--muted)}
.centred{text-align:center}
.lede{font-size:19px;color:var(--muted)}
.eyebrow{font:600 12px/1 Inter,sans-serif;letter-spacing:.18em;text-transform:uppercase;color:var(--teal);margin:0 0 14px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--ink);color:var(--paper);text-decoration:none;border:0;border-radius:999px;padding:14px 24px;font:600 15px/1 Inter,system-ui,sans-serif;cursor:pointer}
.btn:hover{background:#1A222C}
.btn.teal{background:var(--teal);color:var(--teal-ink)}.btn.teal:hover{background:#0C5B59}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}.btn.ghost:hover{border-color:var(--ink)}
.btn.block{width:100%}

/* header */
.top{display:flex;align-items:center;justify-content:space-between;padding:22px 24px;width:100%;gap:16px}
.logo{display:inline-flex;line-height:0}
.logo img{height:30px;width:auto}
.logo.small img{height:24px}
.nav{display:flex;align-items:center;gap:22px}
.nav a.text{color:var(--ink);text-decoration:none;font-weight:500;font-size:15px}
.nav a.text:hover{text-decoration:underline;text-underline-offset:4px}
.langs{font-size:14px;color:var(--muted)}.langs a{color:var(--muted);text-decoration:none}.langs b{font-weight:600;color:var(--ink)}
@media (max-width:640px){.nav a.text{display:none}.langs{display:none}}

/* hero */
.hero{padding:40px 0 60px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(40px,6vw,72px);line-height:1.02;max-width:12ch}
.hero .lede{margin:22px 0 30px;max-width:46ch;font-size:20px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.hero .fine{margin-top:16px}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr;gap:32px}.hero h1{max-width:none}}

/* the chat exhibit: an approval card, as it looks in WhatsApp */
.phone{background:var(--panel);border:1px solid var(--line);border-radius:28px;padding:18px 16px 20px;box-shadow:0 30px 80px rgba(11,15,20,.10);max-width:400px;margin:0 auto}
.chat-head{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px;padding:2px 4px 12px;border-bottom:1px solid var(--line);margin-bottom:12px}
.chat-head img{width:30px;height:30px}
.chat-head small{font-weight:500;color:var(--muted);margin-left:auto;font-size:12px}
.thread{display:flex;flex-direction:column;gap:10px}
.msg{max-width:88%;padding:10px 14px;border-radius:16px;font-size:15px;line-height:1.4}
.msg.you{align-self:flex-end;background:var(--ink);color:var(--paper);border-bottom-right-radius:5px}
.msg.sam{align-self:flex-start;background:var(--paper);border:1px solid var(--line);border-bottom-left-radius:5px}
.card{align-self:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:16px;border-bottom-left-radius:5px;padding:13px 14px 12px;max-width:94%;font-size:14.5px;line-height:1.45}
.card b{display:block;font-size:15px;margin-bottom:6px}
.card .rows{color:var(--muted);margin:4px 0 8px}.card .rows span{display:block}
.card .rule{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:8px;margin-top:8px}
.card .acts{display:flex;gap:8px;margin-top:10px}
.card .acts span{flex:1;text-align:center;padding:8px 0;border-radius:10px;border:1.5px solid var(--teal);color:var(--teal);font-weight:600;font-size:14px}
.card .acts span.yes{background:var(--teal);color:var(--teal-ink)}

/* where it runs */
.where{padding:40px 0 20px}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 24px}
.tile h3{font-size:19px;margin:10px 0 8px}
.tile p{color:var(--muted);font-size:15px}
.tag{display:inline-block;font:600 12px/1 Inter,sans-serif;letter-spacing:.08em;text-transform:uppercase;padding:6px 10px;border-radius:999px;background:var(--teal-wash);color:var(--teal)}
.tag.soon{background:#EEF0F3;color:var(--muted)}
@media (max-width:860px){.tiles{grid-template-columns:1fr}}

/* prose sections */
.prose{max-width:720px;margin:0 auto;padding:70px 24px 20px}
.prose h2{font-size:clamp(30px,4.4vw,46px);line-height:1.06;margin:0 0 20px}
.prose p{margin:0 0 18px;color:var(--muted);font-size:18px}
.prose p a{color:var(--ink);text-underline-offset:3px}
.prose ul{margin:0 0 18px;padding-left:20px;color:var(--muted);font-size:17px}
.prose li{margin:6px 0}
.prose .exhibit{margin:28px auto}

/* trust list */
.trust{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 28px;margin:26px 0 0;padding:0;list-style:none}
.trust li{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px;font-size:15.5px;color:var(--ink)}
.trust li b{display:block;margin-bottom:4px}
.trust li span{color:var(--muted)}
@media (max-width:640px){.trust{grid-template-columns:1fr}}

/* join */
.join{padding:90px 24px 100px;text-align:center}
.join .mark{display:block;width:56px;height:56px;margin:0 auto 20px}
.join h2{font-size:clamp(32px,5vw,52px);line-height:1.05;margin:0 auto 14px;max-width:18ch}
.join .lede{max-width:48ch;margin:0 auto 32px}
.invite{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;max-width:480px;margin:0 auto;text-align:left;box-shadow:0 20px 60px rgba(11,15,20,.06)}
.invite label{display:block;font-weight:500;margin:16px 0 6px;font-size:14.5px}
.invite label:first-of-type{margin-top:0}
.invite input,.invite textarea,.invite select{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;font:16px/1.4 Inter,system-ui,sans-serif;background:#fff;color:var(--ink)}
.invite textarea{min-height:84px;resize:vertical}
.invite .btn{margin-top:22px}
.invite .fine{margin-top:12px}
.ok{background:var(--teal-wash);padding:14px 16px;border-radius:10px;color:var(--ink)}
@media (max-width:700px){.join{padding:70px 20px 70px}.invite{padding:22px}}

/* the one pop-up: after registering, send NFRNS the first message */
.modal{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(11,15,20,.55);backdrop-filter:blur(3px)}
.modal[hidden]{display:none}
.modal-card{position:relative;background:var(--panel);border-radius:22px;padding:34px 28px 26px;max-width:440px;width:100%;text-align:center;box-shadow:0 30px 80px rgba(11,15,20,.3)}
.modal-card .mark{display:block;width:48px;height:48px;margin:0 auto 14px}
.modal-card h3{font-size:28px;line-height:1.1;margin:0 0 10px}
.modal-card .lede{font-size:17px;margin:0 0 18px}
.modal-card .bubble{display:inline-block;text-align:left;background:var(--ink);color:var(--paper);padding:12px 16px;border-radius:18px;border-bottom-right-radius:6px;font-size:16px;line-height:1.4;margin:0 0 18px;max-width:100%}
.modal-card .fine{margin-top:12px}
.modal-x{position:absolute;top:10px;right:14px;background:none;border:0;font-size:28px;line-height:1;color:var(--muted);cursor:pointer;padding:6px}
body.modal-open{overflow:hidden}
@media (max-width:700px){.modal{align-items:flex-end;padding:0}.modal-card{border-radius:22px 22px 0 0;padding:30px 22px 28px;max-width:none}}

/* footer */
footer{padding:36px 0 48px;color:var(--muted);font-size:14px;border-top:1px solid var(--line)}
footer .row{display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;justify-content:space-between}
footer nav{display:flex;flex-wrap:wrap;gap:10px 22px}
footer a{color:var(--ink);text-decoration:none}
footer a:hover{text-decoration:underline;text-underline-offset:3px}

/* secondary pages (join, terms, privacy) */
.page{max-width:640px;margin:0 auto;padding:16px 24px 80px}
.page h1{font-size:clamp(32px,5vw,46px);line-height:1.1;margin:18px 0 14px}
.page h2{font-size:22px;margin:30px 0 8px}
.page p{margin:10px 0}
.page ol,.page ul{padding-left:20px}
.page li{margin:8px 0}

/* RTL */
[dir=rtl] .hero h1,[dir=rtl] .prose,[dir=rtl] .invite{text-align:right}
[dir=rtl] .msg.you{border-bottom-right-radius:16px;border-bottom-left-radius:5px}
[dir=rtl] .msg.sam,[dir=rtl] .card{border-bottom-left-radius:16px;border-bottom-right-radius:5px}
[dir=rtl] .chat-head small{margin-left:0;margin-right:auto}
/* Arabic typefaces: headings Naskh, text Plex Sans Arabic (the Worker adds the font link for lang=ar) */
[dir=rtl] body{font-family:"IBM Plex Sans Arabic",Inter,system-ui,sans-serif}
[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] h3,[dir=rtl] .bz-tag{font-family:"Noto Naskh Arabic",Georgia,serif;letter-spacing:0;font-weight:600}
[dir=rtl] .eyebrow,[dir=rtl] .bz-tag{letter-spacing:0;text-transform:none}
/* ---- NFRNS for companies: the enterprise page (nfrns.com) ---- */
.ent-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:56px;align-items:center;padding-top:48px;padding-bottom:72px}
.ent-hero h1{font-size:clamp(40px,5.6vw,70px);line-height:1.02;max-width:13ch;margin:0 0 22px}
.ent-hero .lede{max-width:34em;margin:0 0 30px;font-size:20px}
@media (max-width:900px){.ent-hero{grid-template-columns:1fr;gap:40px;padding-top:24px;padding-bottom:56px}.ent-hero h1{max-width:none}}
/* the console exhibit: a playbook waiting for a yes */
.ent-console{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:0;overflow:hidden;box-shadow:0 30px 80px rgba(11,15,20,.10);justify-self:center;width:100%;max-width:460px}
.ent-console .bar{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.ent-console .bar img{width:20px;height:20px}
.ent-console .body{padding:18px 18px 20px}
.ent-console h4{font:600 16px Inter,sans-serif;margin:0 0 4px}
.ent-console .pill{display:inline-block;border-radius:999px;padding:2px 10px;font-size:12px;font-weight:600;background:#FDECC8;margin-left:6px}
.ent-console ol{margin:10px 0 14px;padding-left:20px;color:var(--muted);font-size:14.5px}
.ent-console li{margin:4px 0}
.ent-console .gate{display:inline-block;border-radius:999px;padding:1px 8px;font-size:11px;font-weight:600;background:var(--teal-wash);color:var(--teal);margin-left:4px}
.ent-console .acts{display:flex;gap:8px}
.ent-console .acts span{padding:9px 16px;border-radius:999px;font-weight:600;font-size:14px;border:1.5px solid var(--line)}
.ent-console .acts span.yes{background:var(--teal);color:#fff;border-color:var(--teal)}
.ent-console .trail{font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);margin-top:14px;padding-top:10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
/* steps: how it learns your business */
.ent-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px;counter-reset:s}
.ent-steps li{counter-increment:s;position:relative;padding-top:52px}
.ent-steps li::before{content:counter(s);position:absolute;top:0;inset-inline-start:0;width:36px;height:36px;border-radius:50%;background:var(--ink);color:var(--paper);font:600 15px/36px Inter,system-ui,sans-serif;text-align:center}
.ent-steps h3{font-size:18px;margin:0 0 6px}
.ent-steps p{font-size:15px;color:var(--muted)}
@media (max-width:980px){.ent-steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.ent-steps{grid-template-columns:1fr}}
/* the three parts */
.ent-parts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.ent-part{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.ent-part h3{font-size:20px;margin:12px 0 8px}
.ent-part p{color:var(--muted);font-size:15px}
.ent-part .glyph{width:40px;height:40px}
@media (max-width:900px){.ent-parts{grid-template-columns:1fr}}
/* where it runs */
.ent-where{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.ent-where .tile h3{margin-top:10px}
.ent-where code{background:#EEF0F3;padding:2px 6px;border-radius:6px;font-size:13.5px}
@media (max-width:760px){.ent-where{grid-template-columns:1fr}}
/* early access form */
.ent-form .invite{max-width:560px}
.ent-form .two{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media (max-width:560px){.ent-form .two{grid-template-columns:1fr}}
.ent-band{padding:72px 0;border-top:1px solid var(--line)}
.ent-band h2{margin:0 0 18px;font-size:clamp(28px,4vw,40px)}.ent-band .bz-narrow{margin:0}
.bz-brand{display:flex;align-items:center;gap:12px}
.bz-tag{font:600 12px/1 Inter,system-ui,sans-serif;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding-top:2px;white-space:nowrap}
@media (max-width:560px){.bz-tag{display:none}.bz .top{padding:18px 16px}.bz-brand{gap:8px}.bz-section{padding-top:56px;padding-bottom:56px}.ent-band{padding:56px 0}}
.bz-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px}
.bz-section{padding-top:72px;padding-bottom:72px}
.bz-section h2,.bz-band h2{font-size:clamp(32px,4.4vw,48px);line-height:1.06;margin:0 0 36px;max-width:22ch;text-wrap:balance}
.bz-section h3,.bz-band h3{font-family:"Space Grotesk",Inter,system-ui,sans-serif;font-weight:500;font-size:23px;line-height:1.2;letter-spacing:-0.005em;margin:0 0 8px}
.bz-section p,.bz-band p{color:var(--ink-2)}
.bz-narrow{max-width:40em;margin:-18px 0 40px}
.bz-alt{color:var(--ink);font-weight:500;text-underline-offset:4px}
.bz-cta-fine{margin-top:14px}