/* Seko — dark cinematic variant of the DCAsia design system (same accent,
   same type family, same component shapes) — see dcasia.id/styles.css for
   the light-theme original this is adapted from. */
:root{
  --bg:#09090A;
  --bg-raised:#131316;
  --bg-soft:#101012;
  --ink:#F5F3EF;
  --muted:#9B9A97;
  --muted-2:#6E6D69;
  --line:rgba(245,243,239,0.12);
  --line-soft:rgba(245,243,239,0.07);
  --accent:#F2600A;
  --accent-2:#FF7A24;
  --accent-tint:rgba(242,96,10,0.14);
  --max:1120px;
  --radius:14px;
  --radius-sm:9px;
  --card-gap:22px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Hanken Grotesk', sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:'Hanken Grotesk', sans-serif;
  font-weight:700;
  margin:0;
  color:var(--ink);
  letter-spacing:-0.01em;
}
a{color:inherit;}
img{max-width:100%; display:block;}
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:2px; }
.wrap{ max-width:var(--max); margin:0 auto; padding:0 28px; }
section{ padding:112px 0; }
.hero + section{ padding-top:0; }
main section[id]{ scroll-margin-top:84px; }

/* HEADER */
header{
  padding:18px 0;
  border-bottom:1px solid var(--line-soft);
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(9,9,10,0.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
header .wrap{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:14px; }
.brand-lockup{ display:flex; align-items:baseline; gap:10px; text-decoration:none; }
.brand{ font-size:1.25rem; font-weight:800; letter-spacing:-0.01em; color:var(--ink); }
.brand .dot{ color:var(--accent); }

.nav-toggle{
  display:none; align-items:center; justify-content:center;
  width:40px; height:40px; padding:0;
  border:1px solid var(--line); border-radius:999px;
  background:transparent; cursor:pointer; flex-shrink:0;
  transition:border-color .2s ease, background .2s ease;
}
.nav-toggle:hover{ border-color:var(--accent); background:var(--accent-tint); }
.nav-toggle svg{ width:18px; height:18px; stroke:var(--ink); }
.nav-toggle .icon-close{ display:none; }
header.nav-open .nav-toggle .icon-open{ display:none; }
header.nav-open .nav-toggle .icon-close{ display:block; }

nav{ display:flex; align-items:center; flex-wrap:wrap; gap:6px; }
nav a{
  position:relative; text-decoration:none;
  font-size:0.92rem; font-weight:600; color:var(--muted);
  padding:8px 14px; border-radius:999px; white-space:nowrap;
  transition:color .2s ease, background .2s ease;
}
nav a:hover{ color:var(--ink); background:var(--bg-raised); }
nav a.cta-nav{ color:#0A0A0B; background:var(--accent); font-weight:700; }
nav a.cta-nav:hover{ background:var(--accent-2); color:#0A0A0B; }

@media (max-width:680px){
  .nav-toggle{ display:inline-flex; }
  header nav{
    display:none; flex-direction:column; align-items:stretch;
    flex:1 0 100%; gap:6px; margin-top:14px; padding-top:14px;
    border-top:1px solid var(--line-soft);
  }
  header.nav-open nav{ display:flex; }
  header nav a{ width:100%; box-sizing:border-box; padding:12px 14px; font-size:1rem; }
  header nav a.cta-nav{ margin-top:4px; justify-content:center; text-align:center; }
}

/* BUTTONS */
.cta-row{ display:flex; flex-wrap:wrap; gap:14px; }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 26px; font-size:0.96rem; font-weight:700;
  text-decoration:none; border-radius:999px; border:1px solid transparent;
  cursor:pointer;
  transition: transform .18s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn-primary{ background:var(--accent); color:#0A0A0B; box-shadow:0 10px 28px -10px rgba(242,96,10,0.55); }
.btn-primary:hover{ background:var(--accent-2); transform:translateY(-2px); box-shadow:0 14px 32px -10px rgba(242,96,10,0.6); }
.btn-secondary{ border-color:var(--line); color:var(--ink); background:transparent; }
.btn-secondary:hover{ border-color:var(--ink); transform:translateY(-2px); }

/* STATUS / PILLS */
.status{ display:inline-flex; align-items:center; gap:7px; font-size:0.78rem; font-weight:700; letter-spacing:0.03em; color:var(--accent); text-transform:uppercase; }
.status::before{ content:""; width:6px; height:6px; border-radius:50%; background:currentColor; }

/* CINEMATIC AMBIENT BACKGROUND — a canvas of slow-drifting light streaks
   standing in for footage we don't have (no Seko bike photography exists
   yet). Reused by .hero (full-bleed) and .cinema-panel (contained, #bike). */
.cinema{ position:relative; overflow:hidden; }
.cinema-canvas{ position:absolute; inset:0; z-index:0; display:block; }
.cinema-scrim{
  position:absolute; inset:0; z-index:1;
  background:
    linear-gradient(180deg, rgba(9,9,10,0.02) 0%, rgba(9,9,10,0.4) 62%, rgba(9,9,10,0.95) 100%),
    radial-gradient(ellipse 1000px 600px at 20% 20%, rgba(242,96,10,0.16), transparent 65%),
    radial-gradient(ellipse 800px 500px at 90% 70%, rgba(242,96,10,0.08), transparent 60%);
}
.cinema-grain{
  position:absolute; inset:0; z-index:1; opacity:0.05; mix-blend-mode:overlay; pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.cinema-content{ position:relative; z-index:2; }

/* HERO */
.hero{ min-height:88vh; display:flex; align-items:flex-end; padding:0 0 96px; }
.hero .status{ margin-bottom:16px; }
.hero h1{ font-size:clamp(2.6rem, 6vw, 4.2rem); line-height:1.03; margin:0 0 18px; max-width:820px; }
.hero .lede{ font-size:1.2rem; color:var(--muted); max-width:560px; margin:0 0 34px; }
.scroll-cue{
  position:absolute; z-index:2; left:50%; bottom:28px; transform:translateX(-50%);
  width:36px; height:36px; border:1px solid var(--line); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  color:var(--muted); transition:border-color .2s ease, color .2s ease, transform .2s ease;
  animation:cueBob 2.2s ease-in-out infinite;
}
.scroll-cue:hover{ border-color:var(--accent); color:var(--accent); }
.scroll-cue svg{ width:16px; height:16px; stroke:currentColor; }
@keyframes cueBob{ 0%,100%{ transform:translate(-50%,0); } 50%{ transform:translate(-50%,6px); } }
@media (max-width:900px){
  .hero{ min-height:72vh; padding-bottom:64px; }
}

/* CINEMA PANEL (#bike — same ambient canvas, contained + centered copy) */
.cinema-panel{ padding:0; height:64vh; min-height:420px; display:flex; align-items:center; justify-content:center; }
.cinema-content-center{ text-align:center; display:flex; flex-direction:column; align-items:center; }
.cinema-content-center .eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:0.78rem; font-weight:700; letter-spacing:0.06em; text-transform:uppercase;
  color:var(--accent); margin-bottom:14px;
}
.cinema-content-center h2{ font-size:clamp(1.9rem, 4vw, 2.8rem); margin-bottom:12px; }
.cinema-content-center .lede{ color:var(--muted); font-size:1.08rem; margin:0 0 28px; max-width:440px; }

/* SECTION HEAD */
.section-head{ max-width:640px; margin-bottom:44px; }
.section-head .eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:0.78rem; font-weight:700; letter-spacing:0.06em; text-transform:uppercase;
  color:var(--accent); margin-bottom:14px;
}
.section-head .eyebrow::before{ content:""; width:22px; height:1.5px; background:var(--accent); }
.section-head h2{ font-size:clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom:14px; }
.section-head p{ color:var(--muted); font-size:1.05rem; margin:0; }

/* NARRATIVE (brand story, why-built) */
.narrative{ background:var(--bg-soft); border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); }
.narrative-grid{ display:grid; grid-template-columns:0.8fr 1.2fr; gap:56px; }
.narrative-grid p{ color:var(--muted); font-size:1.08rem; margin:0 0 18px; }
.narrative-grid p:last-child{ margin-bottom:0; }
@media (max-width:820px){ .narrative-grid{ grid-template-columns:1fr; gap:24px; } }

/* FACT STRIP (#about — short label+value facts instead of prose) */
.fact-strip{ display:grid; grid-template-columns:repeat(4, 1fr); gap:var(--card-gap); }
.fact{
  padding:28px; border:1px solid var(--line); border-radius:var(--radius);
  background:var(--bg-raised);
  transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.fact:hover{ transform:translateY(-4px); border-color:var(--accent); box-shadow:0 20px 40px -24px rgba(0,0,0,0.6); }
.fact-label{ display:block; font-size:0.72rem; font-weight:700; letter-spacing:0.06em; text-transform:uppercase; color:var(--accent); margin-bottom:14px; }
.fact p{ margin:0; color:var(--ink); font-size:0.98rem; line-height:1.5; }
.fact p em{ color:var(--ink); }
@media (max-width:820px){ .fact-strip{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .fact-strip{ grid-template-columns:1fr; } }

.pull-quote{
  border-left:2px solid var(--accent);
  padding:4px 0 4px 24px;
  font-size:1.5rem; line-height:1.4; font-weight:600;
  color:var(--ink); margin:0 0 24px;
}
#why-built{ padding:72px 0; }
#why-built .narrative-grid{ align-items:center; }
@media (max-width:640px){ #why-built{ padding:56px 0; } }

/* PRINCIPLES / DIFFERENTIATOR TILES — shares --card-gap and the raised-card
   look with .fact so both "card" components on the page read as one
   consistent system rather than two different styles. */
.tiles{ display:grid; grid-template-columns:repeat(3, 1fr); gap:var(--card-gap); }
.tile{
  padding:32px; border:1px solid var(--line); border-radius:var(--radius);
  background:var(--bg-raised);
  transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.tile:hover{ transform:translateY(-4px); border-color:var(--accent); box-shadow:0 20px 40px -24px rgba(0,0,0,0.6); }
.tile-icon{ display:block; width:30px; height:30px; stroke:var(--accent); margin-bottom:20px; }
.tile h3{ font-size:1.2rem; margin-bottom:14px; }
.tile p{ margin:0; color:var(--muted); font-size:0.96rem; line-height:1.5; }
@media (max-width:820px){ .tiles{ grid-template-columns:1fr; } }

/* ROADMAP STRIP — dots centered in each column; the connector runs only
   between the first and last dot's centers (12.5%/87.5% of 4 equal
   columns), not the full row, so it never overshoots the last step. Flat
   neutral color throughout — no step here is actually "done" yet, so the
   line shouldn't read as a progress bar. */
#roadmap{ padding:80px 0; }
.roadmap-strip{ display:grid; grid-template-columns:repeat(4, 1fr); gap:20px; position:relative; }
.roadmap-line{ position:absolute; left:12.5%; right:12.5%; top:23px; height:1.5px; background:var(--line); z-index:0; }
.roadmap-step{ position:relative; z-index:1; text-align:center; }
.js .roadmap-step{ opacity:0; transform:translateY(16px); transition:opacity .5s ease, transform .5s ease; }
.js .roadmap-step.in-view{ opacity:1; transform:translateY(0); }
.roadmap-step:nth-child(3){ transition-delay:.08s; }
.roadmap-step:nth-child(4){ transition-delay:.16s; }
.roadmap-step:nth-child(5){ transition-delay:.24s; }
.roadmap-step .dot{
  width:46px; height:46px; margin:0 auto 20px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background:var(--bg-raised); border:1.5px solid var(--line);
  font-weight:800; color:var(--muted);
}
.roadmap-step.is-first .dot{ background:var(--accent-tint); border-color:var(--accent); color:var(--accent); }
.roadmap-step h3{ font-size:1.02rem; margin-bottom:8px; }
.roadmap-step p{ margin:0; color:var(--muted); font-size:0.92rem; }
@media (max-width:820px){
  #roadmap{ padding:64px 0; }
  .roadmap-strip{ grid-template-columns:1fr; gap:36px; }
  .roadmap-line{ display:none; }
}
@media (prefers-reduced-motion: reduce){ .roadmap-step{ opacity:1; transform:none; transition:none; } }

/* NOTIFY / SIGNUP */
.notify{
  background:radial-gradient(ellipse 800px 420px at 50% 0%, rgba(242,96,10,0.16), transparent 65%), var(--bg-soft);
  border-top:1px solid var(--line-soft);
  text-align:center;
}
.notify .section-head{ margin-left:auto; margin-right:auto; text-align:center; }
.notify .eyebrow{ justify-content:center; }
.notify-form{ display:flex; gap:12px; max-width:460px; margin:0 auto; flex-wrap:wrap; justify-content:center; }
.notify-form input[type="email"]{
  flex:1 1 240px; min-width:0;
  padding:14px 18px; font-size:0.98rem; font-family:inherit;
  color:var(--ink); background:var(--bg-raised);
  border:1px solid var(--line); border-radius:999px;
  transition:border-color .2s ease;
}
.notify-form input[type="email"]::placeholder{ color:var(--muted-2); }
.notify-form input[type="email"]:focus{ border-color:var(--accent); outline:none; }
.notify-form .hp-field{ position:absolute; left:-9999px; width:1px; height:1px; opacity:0; }
.notify-form button{ flex:0 0 auto; }
.notify-msg{ margin-top:16px; font-size:0.92rem; min-height:1.4em; }
.notify-msg.ok{ color:#4ADE80; }
.notify-msg.err{ color:#F87171; }

/* FOOTER */
footer{ padding:56px 0 40px; border-top:1px solid var(--line-soft); background:var(--bg); }
footer .origin{ max-width:420px; color:var(--muted); font-size:0.95rem; line-height:1.7; margin:0; }
.footer-grid{ display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:40px; margin-bottom:40px; }
.footer-col h3{ font-size:0.92rem; font-weight:700; color:var(--ink); margin-bottom:14px; }
.footer-col nav{ display:flex; flex-direction:column; align-items:flex-start; gap:10px; }
.footer-col nav a{ padding:0; border-radius:0; background:none; font-size:0.92rem; font-weight:400; color:var(--muted); text-decoration:none; white-space:normal; transition:color .2s ease; }
.footer-col nav a:hover{ background:none; color:var(--accent); }
.footer-col address{ font-style:normal; color:var(--muted); font-size:0.92rem; line-height:1.6; margin-bottom:12px; }
.footer-col .footer-email{ display:inline-block; font-size:0.92rem; font-weight:600; color:var(--ink); text-decoration:none; transition:color .2s ease; margin-bottom:4px; }
.footer-col .footer-email:hover{ color:var(--accent); }
footer .meta{ display:flex; flex-wrap:wrap; gap:20px 32px; padding-top:28px; border-top:1px solid var(--line-soft); font-size:0.86rem; color:var(--muted-2); }
footer .meta a{ text-decoration:none; font-weight:600; color:var(--muted); transition:color .2s ease; }
footer .meta a:hover{ color:var(--accent); }

@media (max-width:640px){
  section{ padding:72px 0; }
  header{ padding:14px 0; }
  header .wrap{ gap:8px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .btn, .tile, footer .meta a, nav a{ transition:none; }
}