/* Kashela — site styles */
:root{
  --ink:#101828; --ink-2:#1D2939; --text:#344054; --muted:#5D6B82;
  --paper:#F4F6F8; --white:#FFFFFF; --line:#E1E5EB;
  --accent:#0B7A75; --accent-d:#065E5A; --accent-soft:#E2F3F1; --accent-bright:#2DD4BF;
  --ok:#0B7A75; --ok-soft:#E2F3F1;
  --r-lg:22px; --r-md:14px; --r-sm:9px;
  --shadow:0 1px 0 rgba(16,24,40,.04), 0 18px 40px -18px rgba(16,24,40,.28);
  --font:"Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.65;color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.2;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:12px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;border:1.5px solid var(--accent);background:var(--accent);color:#fff;font:600 16px/1 var(--font);text-decoration:none;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.btn:hover{background:var(--accent-d);border-color:var(--accent-d)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--paper);border-color:var(--ink);color:var(--ink)}
.btn-sm{min-height:40px;padding:0 16px;font-size:15px}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:wait}

/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.top.scrolled{border-bottom-color:var(--line)}
.top-in{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font-weight:800;font-size:23px;letter-spacing:-.04em}
.brand-mark{width:28px;height:28px}
.nav{display:flex;gap:26px;margin-left:12px}
.nav a{text-decoration:none;color:var(--ink-2);font-weight:500;font-size:15.5px}
.nav a:hover{color:var(--accent)}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.lang{min-width:44px;height:40px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--ink);font:600 14px var(--font);cursor:pointer}
.lang:hover{border-color:var(--ink)}
.menu{display:none;width:44px;height:40px;border:0;background:transparent;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:6px}
.menu span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s}
.menu[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.menu[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}
.nav-login{display:none}
.top-login{color:var(--ink-2);text-decoration:none;font-weight:500;font-size:15.5px;margin-right:6px}
.top-login:hover{color:var(--accent)}
.upper{text-transform:uppercase}
html.i18n-wait body{visibility:hidden;animation:i18n-show 0s 1.2s forwards}
@keyframes i18n-show{to{visibility:visible}}
html[data-lang="en"] [data-only="vi"], html:not([data-lang="en"]) [data-only="en"]{display:none!important}

/* hero */
.hero{background:linear-gradient(180deg,var(--white) 0%,var(--paper) 100%);padding:72px 0 88px;overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(38px,5.6vw,66px);font-weight:800;letter-spacing:-.045em;line-height:1.04;max-width:12ch}
.lead{margin-top:22px;font-size:clamp(17px,1.6vw,19.5px);color:var(--muted);max-width:36em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;color:var(--ink-2);font-size:15px;font-weight:500}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points li::before{content:"";width:18px;height:18px;border-radius:50%;background:var(--ok-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l3.8 3.8L18 8' fill='none' stroke='%230B7A75' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat;flex:none}

/* hero demo: ticket + PAX */
.hero-demo{position:relative;display:flex;align-items:flex-start;justify-content:center;padding-bottom:20px}
.ticket{position:relative;z-index:1;flex:0 1 330px;min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:22px 22px 18px}
.ticket-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.ticket-head strong{display:block;color:var(--ink);font-size:17px}
.ticket-head small{color:var(--muted);font-size:13.5px}
.chip{flex:none;font-size:12.5px;font-weight:600;color:var(--accent-d);background:var(--accent-soft);padding:4px 10px;border-radius:999px}
.ticket-lines{padding:12px 0;display:grid;gap:8px;font-size:15px}
.ticket-lines li{display:flex;justify-content:space-between;gap:12px}
.ticket-lines b{font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.muted-line{color:var(--muted)}
.muted-line b{color:var(--ok)!important}
.ticket-total{display:flex;justify-content:space-between;align-items:baseline;padding:12px 0;border-top:1px solid var(--line);font-weight:600;color:var(--ink)}
.ticket-total b{font-size:26px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.ticket-split{display:flex;align-items:center;justify-content:space-between;margin-top:4px;padding:10px 12px;border-radius:var(--r-sm);background:var(--paper);font-size:13.5px;color:var(--ink-2);font-weight:500}
.pulse{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(11,122,117,.5);animation:pulse 1.4s ease-out 3}
.is-paid .pulse{background:var(--ok);animation:none}

.term{position:relative;z-index:2;flex:none;width:200px;margin:120px 0 0 -18px;padding:14px 14px 18px;border-radius:30px;background:linear-gradient(160deg,#2a3346,#121827);box-shadow:0 30px 60px -20px rgba(16,24,40,.55),inset 0 1px 0 rgba(255,255,255,.08);transform:rotate(4deg)}
.term-screen{position:relative;height:250px;border-radius:18px;background:#fff;overflow:hidden}
.term-state{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:16px;text-align:center;transition:opacity .45s ease, transform .45s ease}
.term-state small{color:var(--muted);font-size:11.5px;font-weight:600}
.term-state b{font-size:30px;color:var(--ink);letter-spacing:-.02em}
.term-state span{font-size:13px;color:var(--muted);line-height:1.4}
.term-ok{opacity:0;transform:scale(.96);background:var(--ok-soft)}
.term-ok svg{width:54px;height:54px;padding:12px;border-radius:50%;background:var(--ok);color:#fff}
.term-ok b{font-size:22px;color:var(--ok)}
.is-paid .term-wait{opacity:0;transform:scale(1.03)}
.is-paid .term-ok{opacity:1;transform:none}
.term-keys{display:flex;justify-content:center;gap:12px;margin-top:14px}
.term-keys i{width:30px;height:8px;border-radius:4px;background:rgba(255,255,255,.14)}
.term-keys i:first-child{background:#e2565e}.term-keys i:last-child{background:#2fb37a}
@keyframes pulse{to{box-shadow:0 0 0 10px rgba(11,122,117,0)}}

/* origin band */
.origin{background:var(--ink);color:#C9CFDB}
.origin-in{padding:30px 20px}
.origin p{max-width:62em;font-size:16.5px}
.origin strong{color:#fff}

/* sections */
.section{padding:96px 0}
.section-head{max-width:640px;margin-bottom:52px}
.section h2{font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.035em}
.section-head p{margin-top:14px;color:var(--muted);font-size:18px}

/* a day at the salon */
.day{position:relative;display:grid;gap:0;counter-reset:d}
.day-step{display:grid;grid-template-columns:200px 1fr;gap:32px;padding:30px 0;border-top:1px solid var(--line)}
.day-step:last-child{border-bottom:1px solid var(--line)}
.day-time{position:relative;padding-left:22px;font-weight:600;color:var(--accent-d);font-size:15.5px}
.day-time::before{content:"";position:absolute;left:0;top:.45em;width:10px;height:10px;border-radius:50%;border:2.5px solid var(--accent);background:#fff}
.day-body h3{font-size:22px;font-weight:700}
.day-body p{margin-top:8px;color:var(--muted);max-width:44em}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tags li{font-size:13.5px;font-weight:500;color:var(--ink-2);padding:5px 12px;border:1px solid var(--line);border-radius:999px;background:#fff}

/* payments */
.pay{background:var(--ink);color:#C9CFDB}
.pay h2{color:#fff}
.pay-in{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.pay-copy>p{margin-top:16px;font-size:17.5px}
.checks{display:grid;gap:14px;margin-top:28px}
.checks li{position:relative;padding-left:30px}
.checks li::before{content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:50%;background:var(--ok-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l3.8 3.8L18 8' fill='none' stroke='%230B7A75' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}
.checks b{color:var(--ink)}
.pay .checks b{color:#fff}
.flow{display:grid;gap:0;justify-items:stretch;max-width:420px;margin-left:auto;width:100%}
.flow-node{padding:16px 20px;border-radius:var(--r-md);background:var(--ink-2);border:1px solid rgba(255,255,255,.08)}
.flow-node b{display:block;color:#fff;font-size:17px}
.flow-node small{color:#A9B1C1;font-size:14px}
.flow-card{background:#fff}
.flow-card b{color:var(--ink)}.flow-card small{color:var(--muted)}
.flow-ok{background:var(--ok);border-color:transparent}
.flow-ok small{color:#D9F2E9}
.flow-arrow{height:34px;width:2px;margin-left:34px;background:linear-gradient(var(--accent),var(--accent)) center/2px 100% no-repeat;position:relative}
.flow-arrow::after{content:"";position:absolute;left:-5px;bottom:0;border:6px solid transparent;border-top:8px solid var(--accent);border-bottom:0}

/* vietnamese */
.support{background:var(--paper)}
.support-in{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:center}
.support-copy>p{margin-top:16px;color:var(--muted);font-size:17.5px}
.phone{width:250px;margin:0 auto;padding:16px;border-radius:34px;background:#fff;border:8px solid var(--ink);box-shadow:var(--shadow)}
.phone-bar{display:flex;justify-content:space-between;font-size:12px;font-weight:600;color:var(--ink)}
.phone-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);align-self:center}
.phone-title{margin-top:16px;font-weight:700;color:var(--ink);font-size:20px}
.phone-stat{margin:12px 0;padding:14px;border-radius:14px;background:var(--accent-soft)}
.phone-stat small{display:block;color:var(--accent-d);font-weight:600;font-size:12.5px}
.phone-stat b{font-size:28px;color:var(--ink);letter-spacing:-.02em}
.phone-row{display:flex;justify-content:space-between;align-items:baseline;padding:10px 2px;border-top:1px solid var(--line);font-weight:600;color:var(--ink);font-size:15px}
.phone-row small{color:var(--muted);font-weight:500;font-size:13px}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;max-width:860px}
.plan{display:flex;flex-direction:column;padding:30px;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff}
.plan-main{border:2px solid var(--ink);box-shadow:var(--shadow)}
.plan h3{font-size:22px}
.plan-for{color:var(--muted);font-size:15px;margin-top:4px}
.plan-price{margin:20px 0 18px;display:flex;align-items:baseline;gap:4px}
.plan-price b{font-size:48px;font-weight:800;letter-spacing:-.04em;color:var(--ink);line-height:1}
.plan-price span{color:var(--muted)}
.plan ul{display:grid;gap:10px;margin-bottom:26px;flex:1}
.plan li{position:relative;padding-left:26px;font-size:15.5px}
.plan li::before{content:"";position:absolute;left:0;top:.5em;width:14px;height:8px;border-left:2.5px solid var(--ok);border-bottom:2.5px solid var(--ok);transform:rotate(-45deg)}
.fine{margin-top:22px;color:var(--muted);font-size:14px;max-width:860px}

/* faq */
.faq-sec{background:var(--paper)}
.faq-in{display:grid;grid-template-columns:.7fr 1.3fr;gap:48px;align-items:start}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:20px 40px 20px 0;position:relative;font-weight:600;color:var(--ink);font-size:17px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:50%;width:10px;height:10px;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq p{padding:0 0 20px;color:var(--muted);max-width:44em}

/* signup */
.signup-in{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.signup-copy>p{margin-top:14px;color:var(--muted);font-size:17.5px}
.steps{counter-reset:s;display:grid;gap:14px;margin-top:30px}
.steps li{counter-increment:s;display:flex;gap:14px;align-items:center;font-weight:500;color:var(--ink-2)}
.steps li::before{content:counter(s);flex:none;display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent-d);font-weight:700;font-size:15px}
.form{display:grid;gap:16px;padding:28px;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--shadow)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:6px}
.field label{font-size:14.5px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;min-height:48px;padding:11px 14px;border:1.5px solid var(--line);border-radius:var(--r-sm);font:16px var(--font);color:var(--ink);background:#fff;appearance:none;-webkit-appearance:none}
.field select{background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5' fill='none' stroke='%23172033' stroke-width='2'/%3E%3C/svg%3E") right 12px center/18px no-repeat;padding-right:38px}
.field textarea{resize:vertical;min-height:110px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(16,24,40,.1)}
.field.invalid input,.field.invalid textarea{border-color:var(--accent)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.form-msg{font-size:15px;font-weight:500;min-height:1.4em}
.form-msg.ok{color:var(--ok)}
.form-msg.err{color:var(--accent-d)}
.form.done>*:not(.form-msg){display:none}
.form.done .form-msg{font-size:17px;padding:8px 0}
.contact{margin-top:40px}
.contact-box{border-top:1px solid var(--line);padding-top:24px}
.contact-box summary{cursor:pointer;font-weight:600;color:var(--ink);font-size:17px;list-style:none;display:inline-flex;align-items:center;gap:10px}
.contact-box summary::-webkit-details-marker{display:none}
.contact-box summary::before{content:"+";display:grid;place-items:center;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--line);font-weight:500}
.contact-box[open] summary::before{content:"−"}
.contact-box .form{margin-top:20px;max-width:640px}

/* footer */
.foot{background:var(--ink);color:#A9B1C1;padding:64px 0 28px;font-size:15px}
.foot .brand{color:#fff}
.foot-in{display:grid;grid-template-columns:1fr 1.4fr;gap:40px}
.foot-brand p{margin-top:12px;max-width:26em}
.foot-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.foot-cols h4{color:#fff;font-size:15px;margin-bottom:12px}
.foot-cols a{display:block;text-decoration:none;padding:4px 0}
.foot-cols a:hover{color:#fff}
.foot-legal{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);font-size:14px}

/* legal pages */
.legal{padding:64px 0 96px}
.legal .wrap{max-width:760px}
.legal h1{font-size:clamp(32px,4.4vw,44px);font-weight:800;letter-spacing:-.035em}
.legal .updated{margin-top:10px;color:var(--muted)}
.legal h2{font-size:22px;margin:38px 0 10px}
.legal p,.legal li{color:var(--text);margin-top:10px}
.legal ul{list-style:disc;padding-left:22px}
.legal a{color:var(--accent-d)}
.note{margin-top:24px;padding:14px 16px;border-radius:var(--r-sm);background:var(--accent-soft);color:var(--accent-d);font-size:15px}

/* responsive */
@media (max-width:960px){
  .hero-in,.pay-in,.support-in,.signup-in,.faq-in,.foot-in{grid-template-columns:1fr}
  .hero{padding:48px 0 64px}
  .hero-demo{justify-content:flex-start}
  .flow{margin-left:0}
  .support-demo{order:2}
  .section{padding:72px 0}
  .day-step{grid-template-columns:1fr;gap:10px}
}
@media (max-width:820px){
  .menu{display:flex}
  .nav{position:fixed;inset:68px 0 auto 0;flex-direction:column;gap:0;margin:0;padding:8px 20px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 20px 30px -20px rgba(16,24,40,.3);transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .18s, transform .18s, visibility .18s}
  .nav.open{opacity:1;transform:none;visibility:visible}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:17px}
  .nav-login{display:block}
  .top-actions .btn-sm,.top-login{display:none}
}
@media (max-width:560px){
  body{font-size:16.5px}
  .row2,.plans,.foot-cols{grid-template-columns:1fr}
  .hero-cta .btn{flex:1 1 100%}
  .hero-demo{flex-direction:column;align-items:stretch}
  .ticket{flex:none;width:auto;margin-right:28px}
  .term{align-self:flex-end;width:168px;margin:-22px 4px 0 0;padding:11px 11px 14px;border-radius:24px}
  .term-screen{height:190px}
  .form{padding:20px}
  .foot-cols{gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}