/* u.bot Pay — design system inspired by u.bot (U-topia): Poppins, deep indigo + glowing voice orb on the left, clean light panel on the right, #1F5AF0 accent */
:root{--ink:#14151C;--ink2:#454853;--muted:#676B77;--line:#E0E2E8;--paper:#F3F4F7;--white:#fff;--chipbg:#EEF2FF;--chipbg2:#E3ECFF;--codebg:rgba(20,21,28,.06);--blue:#1F5AF0;--blue2:#4C7DF0;--navy:#0B0D2A;--indigo:#2D2A9E;--violet:#6C5CE7;--cyan:#5BC8FF;--ok:#13B37A;--warn:#F2A413;--bad:#E5484D;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
html[data-theme="dark"]{--ink:#F3F4FF;--ink2:#C9CBE8;--muted:#8B8FB3;--line:#1E2040;--paper:#07070D;--white:#0F1020;--chipbg:#1A1B3A;--chipbg2:#15163A;--codebg:rgba(255,255,255,.08)}
html[data-theme="dark"] .light{background:radial-gradient(900px 500px at 50% 0%,#12123A 0%,#07070D 60%)}
html[data-theme="dark"] .console{box-shadow:0 30px 80px rgba(0,0,0,.45)}
html[data-theme="dark"] .msg.b{background:#13142A}
html[data-theme="dark"] .inputrow input:focus{box-shadow:0 0 0 3px rgba(76,125,240,.25)}
html[data-theme="dark"] .btn:hover{border-color:#2E3160}
html[data-theme="dark"] .badge.warn{color:#FFB020}
html[data-theme="dark"] .arch{border:1px solid var(--line)}
html[data-theme="dark"] .foot a:hover{color:#fff}
.theme{position:fixed;top:16px;right:16px;z-index:50;display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:rgba(11,13,42,.55);color:#fff;font:inherit;font-size:14px;font-weight:500;cursor:pointer;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:.15s}
.theme:hover{background:rgba(11,13,42,.8)}
html[data-theme="dark"] .theme{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18)}
@media(max-width:960px){.theme{top:12px;right:12px;padding:7px 10px}}
body{margin:0;font-family:Poppins,"Noto Sans Thai",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;font-size:17px;transition:background .25s,color .25s}
a{color:var(--blue);text-decoration:none}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;background:var(--codebg);padding:1px 5px;border-radius:5px}

/* split hero */
.hero{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}
.dark{position:relative;background:radial-gradient(900px 600px at 50% 40%,#2C2C9B 0%,#1A1A5E 38%,#0B0D2A 100%);color:#fff;padding:44px 48px;display:flex;flex-direction:column;overflow:hidden}
.dark:after{content:"";position:absolute;inset:auto 0 0 0;height:30%;background:linear-gradient(180deg,transparent,rgba(5,6,24,.75));pointer-events:none}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:28px;letter-spacing:-.01em;z-index:1;color:#fff}
.brand svg{width:34px;height:34px}
.brand small{font-weight:500;font-size:14px;opacity:.7;margin-left:8px;letter-spacing:.08em}
.orbwrap{flex:1;display:grid;place-items:center;z-index:1;min-height:260px}
.orb{position:relative;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle at 38% 30%,#BFE0FF 0%,#6FAEFF 28%,#4C7DF0 55%,#6C5CE7 85%,#3C2FA8 100%);box-shadow:0 0 90px rgba(92,140,255,.55),0 0 160px rgba(108,92,231,.35),inset 0 0 40px rgba(255,255,255,.18);display:grid;place-items:center;transition:box-shadow .3s}
.orb.sm{width:120px;height:120px}
.orb .bars{display:flex;gap:7px;align-items:center;height:56px}
.orb.sm .bars{gap:5px;height:36px}.orb.sm .bars i{width:5px}
.orb .bars i{width:7px;border-radius:4px;background:#fff;display:block;height:var(--h);animation:idle 2.6s ease-in-out infinite;animation-delay:var(--d)}
.orb.listening .bars i{animation:listen 1s ease-in-out infinite;animation-delay:var(--d)}
.orb.speaking .bars i{animation:speak .45s ease-in-out infinite alternate;animation-delay:var(--d)}
@keyframes idle{0%,100%{transform:scaleY(1)}50%{transform:scaleY(1.25)}}
@keyframes listen{0%,100%{transform:scaleY(.7)}50%{transform:scaleY(1.6)}}
@keyframes speak{from{transform:scaleY(.5)}to{transform:scaleY(1.9)}}
.orb.listening{box-shadow:0 0 110px rgba(91,200,255,.75),0 0 200px rgba(108,92,231,.45)}
.tag{z-index:1}
.tag h1{font-size:clamp(36px,3.6vw,50px);font-weight:600;letter-spacing:-.02em;margin:0 0 10px;line-height:1.15}
.tag p{margin:0;font-size:20px;color:rgba(255,255,255,.72);max-width:520px}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.chip{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:9px 15px;font-size:15px;font-weight:500;color:rgba(255,255,255,.85)}

/* light side */
.light{background:var(--paper);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 48px}
.panel{width:100%;max-width:520px}
.panel.wide{max-width:600px}
.panel h2{font-size:32px;font-weight:600;margin:0 0 4px;letter-spacing:-.01em}
.panel .sub{color:var(--muted);margin:0 0 20px;font-size:17px}
.console{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:0 10px 40px rgba(20,21,28,.06)}
.state{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted);margin-bottom:10px}
.state b{color:var(--ink);font-weight:600}
#log{height:340px;overflow:auto;display:flex;flex-direction:column;gap:9px;padding-right:4px}
.msg{max-width:92%;padding:12px 16px;border-radius:16px;font-size:16px;line-height:1.45;animation:in .25s ease}
.msg.u{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:4px}
.msg.b{align-self:flex-start;background:var(--paper);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.sys{align-self:center;font-size:14px;color:var(--muted);background:transparent;text-align:center}
.tx{margin-top:8px;font-size:14px;color:var(--muted)}.tx a{word-break:break-all}
.badge{display:inline-block;font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px;margin-right:6px;letter-spacing:.02em}
.badge.ok{background:rgba(19,179,122,.12);color:var(--ok)}.badge.warn{background:rgba(242,164,19,.14);color:#B57700}.badge.bad{background:rgba(229,72,77,.12);color:var(--bad)}.badge.info{background:rgba(31,90,240,.1);color:var(--blue)}
@keyframes in{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.inputrow{display:flex;gap:8px;margin-top:12px}
.inputrow input{flex:1;min-width:0;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:14px 16px;color:var(--ink);font:inherit;font-size:16px;outline:none}
.inputrow input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,90,240,.12)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;border-radius:12px;font:inherit;font-weight:500;font-size:16px;border:1px solid var(--line);background:var(--white);color:var(--ink);cursor:pointer;transition:.15s}
.btn:hover{border-color:#c9cdd8}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.primary:hover{background:#1A4ED4}
.btn.mic{width:54px;padding:0;background:var(--blue);border-color:var(--blue);color:#fff;font-size:20px;flex:none}
.btn.mic.on{background:var(--bad);border-color:var(--bad)}
.microw{display:flex;align-items:center;gap:8px;justify-content:center;margin:0 0 10px;font-size:12px;color:var(--muted)}
.meter{width:120px;height:6px;background:var(--line);border-radius:6px;overflow:hidden}#lvl{height:100%;width:0;background:linear-gradient(90deg,var(--ok),var(--blue2));transition:width .08s}
.microw select{background:var(--white);color:var(--muted);border:1px solid var(--line);border-radius:8px;font:inherit;font-size:11px;max-width:190px;padding:2px 4px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.kpi{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:9px 12px}.kpi small{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.06em}.kpi b{font-size:18px;font-weight:600}
.alt{margin-top:18px;text-align:center;font-size:16px;color:var(--muted)}
.foot{margin-top:28px;margin-bottom:70px;display:flex;gap:22px;font-size:15px;color:var(--muted);justify-content:center}.foot a{color:inherit}.foot a:hover{color:var(--ink)}
pre.out{margin:0;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:14px;font:13.5px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--ink2);overflow:auto;max-height:260px;white-space:pre-wrap;word-break:break-all}

/* sections */
.wrap{max-width:1120px;margin:0 auto;padding:0 32px}
section{padding:90px 0 20px}
h3.t{font-size:38px;font-weight:600;letter-spacing:-.02em;margin:0 0 8px}
.sub2{color:var(--muted);max-width:720px;margin:0 0 30px;font-size:19px}
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.step b{display:block;font-size:13px;color:var(--blue);margin-bottom:6px;letter-spacing:.04em;text-transform:uppercase;font-weight:600}.step span{font-size:17px;color:var(--ink2)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:12px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.card .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:22px;background:linear-gradient(135deg,var(--chipbg),var(--chipbg2));margin-bottom:12px}
.card h4{margin:0 0 6px;font-size:19px;font-weight:600}.card p{margin:0;color:var(--muted);font-size:16px}
.arch{background:var(--navy);color:#D9DCF5;border-radius:var(--r);padding:24px;overflow:auto}
.arch pre{margin:0;font:14px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace}
.links{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.link{display:inline-flex;align-items:center;gap:6px;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:9px 15px;font-size:15px;color:var(--ink2)}
footer{margin-top:80px;border-top:1px solid var(--line);padding:24px 0 40px;color:var(--muted);font-size:15px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
@media(max-width:960px){.hero{grid-template-columns:1fr}.dark{min-height:60vh;padding:28px}.orb{width:150px;height:150px}.light{padding:28px 20px}#log{height:260px}}

/* support widget */
elevenlabs-convai{position:fixed;bottom:18px;right:18px;z-index:60}
@media(max-width:960px){.theme{top:12px;right:12px}}

/* i18n switcher + social */
.langsw{position:fixed;top:16px;right:120px;z-index:50;display:inline-flex;gap:2px;padding:4px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:rgba(11,13,42,.55);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.langsw button{border:0;background:transparent;color:rgba(255,255,255,.75);font:inherit;font-size:13px;font-weight:500;padding:5px 10px;border-radius:999px;cursor:pointer;font-family:Poppins,"Noto Sans Thai",sans-serif}
.langsw button.on{background:#fff;color:#14151C}
html[data-theme="dark"] .langsw{background:rgba(255,255,255,.1)}
@media (max-width:640px){.langsw{top:12px;right:58px;padding:3px}.langsw button{padding:5px 7px;font-size:12px}.theme{padding:7px 9px}#theme-tx{display:none}.theme{top:12px;right:12px}.brand{margin-top:34px}}
/* mobile overflow guards */
.hero>*{min-width:0}.chips{flex-wrap:wrap}.arch pre{overflow-x:auto;max-width:100%}.wrap{overflow-x:clip}
.social{display:inline-flex;align-items:center;gap:14px;color:var(--muted);font-size:15px}
.social a{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);color:var(--ink2);transition:.15s}
.social a svg{width:17px;height:17px}.social a:hover{color:var(--blue);border-color:var(--blue)}
.social.center{justify-content:center;width:100%;margin-top:14px;margin-bottom:60px}
.panel .foot+.social.center{margin-top:-50px}
/* responsive hardening (mobile / tablet / desktop) */
.two>*,.grid>*,.flow>*,.cards>*{min-width:0}
.card,.step,.panel,.console{box-sizing:border-box;max-width:100%}
pre.out{max-width:100%;overflow-x:auto;word-break:break-word;white-space:pre-wrap}
.card pre,.card .inputrow{min-width:0}
.card .inputrow button{white-space:nowrap}
/* tablet: 2 columns for cards, keep hero stacked */
@media(min-width:641px) and (max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}.flow{grid-template-columns:repeat(2,1fr)}.panel,.panel.wide{max-width:680px;margin:0 auto}.tag p{max-width:640px}}
/* desktop: agent page cards side by side when wide enough */
@media(min-width:1280px){.two{grid-template-columns:1fr 1fr}.panel.wide{max-width:760px}}
/* small phones */
@media(max-width:480px){.tag h1{font-size:32px}.tag p{font-size:17px}.card .inputrow{flex-wrap:wrap}.card .inputrow input{flex:1 1 100%}.card .inputrow button,.card>.btn.primary{width:100%}.kpis{gap:6px}.kpi b{font-size:15px}.foot{flex-wrap:wrap;gap:12px 18px;row-gap:10px}footer{flex-direction:column;align-items:center;text-align:center;gap:14px}}
/* keep the floating ElevenLabs widget off the panel links */
.light{padding-bottom:110px}
@media(max-width:640px){.light{padding-bottom:120px}}
/* short laptop viewports (13" / 1280x720-ish): never clip the hero */
.dark{overflow:visible;min-height:0}.dark:after{display:none}
.hero{min-height:min(100vh,100%)}
.orbwrap{min-height:160px}
@media(min-width:961px) and (max-height:800px){
  .dark{padding:28px 40px}.orbwrap{min-height:140px;flex:0 0 auto;margin:18px 0}
  .orb{width:150px;height:150px;box-shadow:0 0 60px rgba(92,140,255,.5),0 0 110px rgba(108,92,231,.3),inset 0 0 30px rgba(255,255,255,.18)}
  .tag h1{font-size:clamp(30px,2.9vw,40px)}.tag p{font-size:17px}.chips{margin-top:20px}.chip{padding:7px 12px;font-size:13px}
  .light{padding:72px 40px 110px;justify-content:flex-start}
  .panel h2{font-size:26px;margin-bottom:4px}.panel .sub{margin-bottom:12px}
  #log{height:180px}.foot{margin-top:18px;margin-bottom:20px}
}
/* widget never over the Telegram line: push it to the right side only on wide screens */
@media(min-width:961px){.alt{text-align:left;padding-right:0}.panel{padding-right:0}}
/* mobile hero: everything above the floating widget */
@media(max-width:960px){
  .dark{min-height:0;padding:20px 22px 132px}
  .brand{font-size:24px}.brand svg{width:34px;height:34px}
  .orbwrap{min-height:0;flex:0 0 auto;margin:22px 0 18px}
  .orb{width:124px;height:124px;box-shadow:0 0 50px rgba(92,140,255,.5),0 0 100px rgba(108,92,231,.3),inset 0 0 26px rgba(255,255,255,.18)}
  .orb .bars{transform:scale(.72)}
  .tag h1{font-size:30px;margin-bottom:8px}.tag p{font-size:16px;line-height:1.5}
  .chips{margin-top:18px;gap:8px}.chip{padding:7px 12px;font-size:13px}
}
@media(max-width:640px){.brand{margin-top:0}.langsw{top:12px;right:58px}}
/* === desktop hero: dark panel always exactly one screen, content centered & scaled by viewport height === */
@media(min-width:961px){
  .hero{min-height:100vh}
  .dark{position:sticky;top:0;height:100vh;box-sizing:border-box;justify-content:center;padding:40px 48px 96px;overflow:hidden}
  .brand{position:absolute;top:36px;left:48px;margin:0}
  .orbwrap{flex:0 0 auto;min-height:0;margin:0 0 clamp(18px,3.2vh,40px)}
  .orb{width:clamp(120px,22vh,210px);height:clamp(120px,22vh,210px)}
  .tag h1{font-size:clamp(28px,4.4vh,48px);line-height:1.12}
  .tag p{font-size:clamp(15px,2.3vh,20px);max-width:560px}
  .chips{margin-top:clamp(14px,2.4vh,30px)}.chip{padding:clamp(6px,1vh,10px) clamp(11px,1.4vw,16px);font-size:clamp(12px,1.7vh,15px)}
  .light{min-height:100vh;padding:72px 40px 60px;justify-content:center}
}
/* tiny widget needs much less clearance */
.light{padding-bottom:60px}
@media(max-width:960px){.dark{padding-bottom:90px}.light{padding-bottom:70px}}
@media(min-width:961px){
  .dark{padding:40px 48px 72px;align-items:center;text-align:center}
  .tag{display:flex;flex-direction:column;align-items:center}.tag p{max-width:600px}
  .chips{justify-content:center}.chip{white-space:nowrap}
  .tag p{margin-top:4px}
}
@media(min-width:961px){.chips{gap:8px;max-width:620px}.chip{padding:clamp(5px,.9vh,9px) clamp(9px,1vw,13px);font-size:clamp(12px,1.6vh,14px);gap:5px}}