/* Overdrive Utility — shared styles. System fonts only, no external requests. */
:root {
  --bg: #f5f7fa; --bg2: #ffffff; --fg: #17212b; --muted: #5e6c7a; --line: #dde3ea;
  --accent: #ff6a00; --accent2: #ffb347; --volt: #0F9D62; --blue: #2f7cf6; --purple: #8a4dff;
  --radius: 14px; --shadow: 0 6px 24px rgba(20,30,40,.08);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0c1420; --bg2: #16202c; --fg: #e3eaf2; --muted: #8a99a8; --line: #2a3644; --shadow: 0 6px 24px rgba(0,0,0,.35); }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg); line-height: 1.65;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Thai", "Helvetica Neue", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Header / nav */
header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; gap: 18px; height: 60px; position: relative; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1em; color: var(--fg); letter-spacing: .2px; }
.brand:hover { text-decoration: none; }
.logo { width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg, var(--accent2), var(--accent)); display: grid; place-items: center; color: #fff; font-weight: 900; font-size: .95em; }
.nav-links { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav-links a { color: var(--muted); padding: 7px 11px; border-radius: 8px; font-weight: 600; font-size: .95em; }
.nav-links a:hover, .nav-links a.active { color: var(--fg); background: var(--bg2); text-decoration: none; }
.lang-toggle { border: 1px solid var(--line); background: var(--bg2); color: var(--fg); border-radius: 999px; padding: 5px 12px; font: inherit; font-size: .85em; font-weight: 700; cursor: pointer; margin-left: 6px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 8px; color: var(--fg); font-size: 1.2em; padding: 3px 10px; cursor: pointer; }
@media (max-width: 720px) {
  .menu-btn { display: block; }
  .nav-links { display: none; position: absolute; left: -20px; right: -20px; top: 60px; flex-direction: column; align-items: stretch; background: var(--bg2); border-bottom: 1px solid var(--line); padding: 10px 16px 14px; gap: 2px; }
  .nav-links.open { display: flex; }
  .lang-toggle { margin: 8px 0 0; align-self: flex-start; }
}

/* Hero */
.hero { padding: 64px 0 40px; }
.hero h1 { font-size: clamp(1.9em, 4.5vw, 3em); margin: 0 0 .3em; line-height: 1.15; letter-spacing: -.5px; }
.hero h1 span { background: linear-gradient(90deg, var(--accent2), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { font-size: 1.12em; color: var(--muted); max-width: 640px; margin: 0 0 1.4em; }
.cta { display: inline-flex; gap: 10px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 11px 20px; border-radius: 10px; font-weight: 700; border: 1px solid var(--line); background: var(--bg2); color: var(--fg); }
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: linear-gradient(90deg, var(--accent2), var(--accent)); color: #fff; border: none; }

/* Sections & cards */
section { padding: 34px 0; }
h2.sec { font-size: 1.5em; margin: 0 0 .25em; display: flex; align-items: center; gap: 10px; }
.sec-sub { color: var(--muted); margin: 0 0 1.4em; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.card { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px; position: relative; overflow: hidden; }
.card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--c, var(--accent)); }
.card .icon { width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center; font-size: 1.6em; background: color-mix(in srgb, var(--c, var(--accent)) 16%, transparent); }
.card h3 { margin: 4px 0 0; font-size: 1.15em; }
.card p { margin: 0; color: var(--muted); font-size: .95em; flex: 1; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font-size: .75em; font-weight: 700; padding: 3px 9px; border-radius: 999px; background: color-mix(in srgb, var(--c, var(--accent)) 14%, transparent); color: var(--c, var(--accent)); }
.tag.soon { background: var(--line); color: var(--muted); }
.links { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.links a { font-size: .88em; font-weight: 700; padding: 7px 12px; border-radius: 8px; border: 1px solid var(--line); color: var(--fg); }
.links a:hover { border-color: var(--c, var(--accent)); text-decoration: none; }
.links a.store { background: var(--c, var(--accent)); color: #fff; border-color: transparent; }
.card.soon { opacity: .75; border-style: dashed; }

/* Content pages */
.page { max-width: 760px; margin: 0 auto; padding: 40px 20px 70px; }
.page h1 { font-size: 1.9em; margin: 0 0 .2em; }
.page .lead { color: var(--muted); margin-top: 0; font-size: 1.05em; }
.page h2 { font-size: 1.25em; margin-top: 1.9em; }
.page ul { padding-left: 1.3em; }
.page li { margin: .3em 0; }
.box { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; margin: 18px 0; }
.box h3 { margin: 0 0 .5em; font-size: 1.05em; }
.contact-list { list-style: none; padding: 0 !important; margin: 0; }
.contact-list li { display: flex; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); margin: 0; }
.contact-list li:last-child { border-bottom: none; }
.contact-list .ic { font-size: 1.3em; width: 34px; text-align: center; flex-shrink: 0; }
.contact-list small { display: block; color: var(--muted); }

/* Forms */
label { display: block; font-weight: 600; margin: 1.1em 0 .3em; }
input, select, textarea { width: 100%; padding: 11px 13px; font: inherit; border: 1px solid var(--line); border-radius: 9px; background: var(--bg2); color: var(--fg); }
textarea { min-height: 150px; resize: vertical; }
button.send { margin-top: 1.4em; width: 100%; padding: 13px; font: inherit; font-weight: 700; color: #fff; background: linear-gradient(90deg, var(--accent2), var(--accent)); border: none; border-radius: 10px; cursor: pointer; }
.hint { font-size: .85em; color: var(--muted); margin-top: 1.4em; }
table { width: 100%; border-collapse: collapse; font-size: .95em; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .85em; }
.table-wrap { overflow-x: auto; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: .9em; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 10px 22px; justify-content: space-between; }
footer a { color: var(--muted); }
[data-lang-hidden] { display: none !important; }