/* NextTrain public site — single-page landing.
   Separate from admin.css on purpose: the admin is a tool, this is a shop
   window, and the two share nothing but the brand colour. */

:root{
  --bg:#0A0C12;
  --bg-2:#0E121A;
  --surface:#141924;
  --surface-2:#1A2030;
  --line:#232B3B;
  --text:#F3F5F8;
  --muted:#98A2B3;
  --brand:#5B55E8;
  --brand-lo:#4F46E5;
  --brand-hi:#2E8BE0;
  --ok:#22C55E;
  --radius:18px;
  --wrap:1140px;
  --sans:"Plus Jakarta Sans","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.15;letter-spacing:-0.025em;margin:0}
p{margin:0}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-inline:24px}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(10,12,18,.72);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease;
}
.nav.scrolled{border-bottom-color:var(--line)}
.nav-in{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo b{font-weight:inherit}
.logo img{width:30px;height:30px;border-radius:8px}
.logo span{color:var(--brand)}
.nav-links{display:flex;gap:28px;margin-left:auto;font-size:14.5px;font-weight:500;color:var(--muted)}
.nav-links a:hover{color:var(--text)}
.nav .btn{margin-left:28px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:650;font-family:inherit;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease,border-color .15s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand-lo),var(--brand-hi));
  color:#fff;box-shadow:0 8px 24px -8px rgba(91,85,232,.75);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px -10px rgba(91,85,232,.9)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2);border-color:#33405A}
.btn-sm{padding:9px 18px;font-size:14px}
.btn .sm{display:none}

/* ---------- hero ---------- */
.hero{position:relative;padding:76px 0 88px;overflow:hidden}
.hero::before{
  content:"";position:absolute;z-index:0;pointer-events:none;
  top:-200px;left:50%;transform:translateX(-50%);
  width:1500px;height:900px;
  background:
    radial-gradient(560px 400px at 27% 48%,rgba(79,70,229,.38),transparent 70%),
    radial-gradient(520px 380px at 73% 32%,rgba(46,139,224,.26),transparent 72%);
}
.hero-in{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px 6px 8px;border-radius:999px;
  background:rgba(91,85,232,.12);border:1px solid rgba(91,85,232,.32);
  font-size:13px;font-weight:600;color:#C3C0FA;margin-bottom:22px;
}
.eyebrow b{
  background:var(--brand);color:#fff;border-radius:999px;
  padding:2px 9px;font-size:11.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
}
h1{font-size:clamp(31px,5.4vw,60px);font-weight:800;overflow-wrap:break-word}
h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#8B86FF,#4FB0F5);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{margin-top:22px;font-size:18.5px;color:var(--muted);max-width:30em}
.cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.cta-note{margin-top:18px;font-size:13.5px;color:#7D879B}

/* phone */
.phone{
  width:min(300px,74vw);margin-inline:auto;
  border:9px solid #1B2130;border-radius:40px;background:#1B2130;
  box-shadow:0 44px 90px -30px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.05);
}
.phone img{border-radius:31px}
.hero .phone{transform:rotate(1.6deg)}

/* ---------- stat strip ---------- */
.stats{border-block:1px solid var(--line);background:var(--bg-2)}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:38px 0;text-align:center}
.stat b{display:block;font-size:34px;font-weight:800;letter-spacing:-.03em;
  background:linear-gradient(140deg,#fff,#A9B2C6);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13.5px;color:var(--muted)}

/* ---------- sections ---------- */
section{padding:92px 0}
.head{max-width:40rem;margin-bottom:52px}
.kicker{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
h2{font-size:clamp(25px,3.6vw,40px);font-weight:800;overflow-wrap:break-word}
.head p{margin-top:16px;font-size:17px;color:var(--muted)}

/* features */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.card:hover{border-color:#35415C;transform:translateY(-3px);background:var(--surface-2)}
.ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(91,85,232,.14);border:1px solid rgba(91,85,232,.28);
}
.ico svg{width:21px;height:21px;stroke:#A6A1FF;stroke-width:1.9;fill:none;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:17.5px;font-weight:700;margin-bottom:9px}
.card p{font-size:14.8px;color:var(--muted)}

/* showcase */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
.shot{text-align:center}
.shot .phone{width:100%;max-width:258px;border-width:8px;border-radius:34px}
.shot .phone img{border-radius:27px}
.shot h3{font-size:16.5px;font-weight:700;margin:22px 0 7px}
.shot p{font-size:14.2px;color:var(--muted);max-width:26em;margin-inline:auto}

/* offline band */
.band{
  border:1px solid rgba(91,85,232,.32);border-radius:26px;overflow:hidden;
  background:
    radial-gradient(760px 300px at 15% 0%,rgba(79,70,229,.26),transparent 72%),
    linear-gradient(160deg,#121726,#0D111A);
}
.band-in{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:60px 56px}
.band h2{font-size:clamp(26px,3.2vw,36px)}
.band p{margin-top:16px;color:var(--muted);font-size:16.5px}
.ticks{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.ticks li{display:flex;gap:13px;align-items:flex-start;font-size:15.5px}
.ticks svg{flex:0 0 20px;width:20px;height:20px;margin-top:2px;stroke:var(--ok);stroke-width:2.4;fill:none;stroke-linecap:round;stroke-linejoin:round}
.ticks b{font-weight:650}
.ticks span{color:var(--muted)}

/* cities */
.cities .card{padding:26px}
.city-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:6px}
.city-top h3{font-size:19px}
.badge{font-size:11.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:4px 10px;border-radius:999px;background:rgba(34,197,94,.13);color:#4ADE80;border:1px solid rgba(34,197,94,.26)}
.city-nums{display:flex;gap:22px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}
.city-nums div b{display:block;font-size:21px;font-weight:750}
.city-nums div span{font-size:12.5px;color:var(--muted)}

/* faq */
.faq{display:grid;gap:12px;max-width:52rem}
details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 24px}
details[open]{border-color:#35415C}
summary{cursor:pointer;font-weight:650;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:22px;font-weight:400;color:var(--muted);line-height:1}
details[open] summary::after{content:"\2212"}
details p{margin-top:14px;color:var(--muted);font-size:15px}

/* final cta */
.final{text-align:center;padding:100px 0}
.final h2{max-width:16em;margin-inline:auto}
.final p{margin:18px auto 32px;color:var(--muted);font-size:17px;max-width:34em}
.final .cta{justify-content:center}

/* footer */
footer{border-top:1px solid var(--line);background:var(--bg-2);padding:44px 0 36px}
.foot-in{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.foot-links{display:flex;flex-wrap:wrap;gap:24px;font-size:14px;color:var(--muted)}
.foot-links a:hover{color:var(--text)}
.copy{font-size:13.5px;color:#6E7889;margin-top:26px;padding-top:24px;border-top:1px solid var(--line)}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero{padding:60px 0 72px}
  .hero-in{grid-template-columns:1fr;gap:48px;text-align:center}
  .lede{margin-inline:auto}
  .cta{justify-content:center}
  .grid3,.shots{grid-template-columns:repeat(2,1fr)}
  .band-in{grid-template-columns:1fr;padding:44px 32px;gap:34px}
  .nav-links{display:none}
  .nav .btn{margin-left:auto}
}
@media (max-width:640px){
  section{padding:68px 0}
  .btn .lg{display:none}
  .btn .sm{display:inline}
  .nav-in{gap:12px}
  .logo{font-size:17px}
  .wrap{padding-inline:20px}
  .stats-in{grid-template-columns:repeat(2,1fr);gap:28px;padding:32px 0}
  .grid3,.shots{grid-template-columns:1fr;gap:26px}
  .shots{gap:44px}
  .band-in{padding:36px 24px}
  .foot-in{flex-direction:column;align-items:flex-start;gap:20px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* lines covered — a plain, crawlable list of the names people search for */
.lines{
  margin-top:34px;padding:30px 32px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
}
.lines h3{font-size:16.5px;font-weight:700;margin-bottom:18px}
.lines ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.lines li{font-size:14.8px;color:var(--muted);padding-left:16px;position:relative}
.lines li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.lines li b{color:var(--text);font-weight:650}
.muted-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);font-size:14px;color:#7D879B}
@media (max-width:640px){ .lines{padding:24px 20px} }