/* VRCare Tech — brand tokens from "VRCare Tech Logo.pdf" */
:root {
  --blue-1: #0A8EFF;
  --blue-2: #0055F5;
  --deep: #0A2E8A;
  --navy: #131C2A;
  --ink: #0A0F1E;
  --red: #E8202A;
  --bg: #F5F8FD;
  --surface: #FFFFFF;
  --line: #E3E9F3;
  --muted: #5B6678;
  --grad: linear-gradient(135deg, var(--blue-1), var(--blue-2));
  --grad-dark: linear-gradient(135deg, #0A0F1E 0%, #0A2E8A 100%);
  --radius: 18px;
  --shadow: 0 18px 40px -18px rgba(0, 85, 245, .25);
  --font: "Exo 2", "IBM Plex Sans Thai", system-ui, sans-serif;
  --font-body: "IBM Plex Sans Thai", "Exo 2", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--navy);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue-2); text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font); line-height: 1.2; margin: 0 0 .5em; color: var(--ink); }
.container { width: min(1180px, 100% - 32px); margin-inline: auto; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .8em 1.5em; border-radius: 12px; border: 2px solid transparent;
  font: 600 1rem var(--font-body); cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue-2); color: #fff; box-shadow: 0 8px 20px -8px rgba(0, 85, 245, .6); }
.btn-primary:hover { background: #0047D6; }
.btn-outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-light { background: #fff; color: var(--blue-2); }
.btn-ghost { background: transparent; color: var(--navy); }
.btn-block { width: 100%; }
.btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.brand img { height: 40px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--navy); font-weight: 500; }
.nav-links a:hover { color: var(--blue-2); }
.nav-actions { display: flex; gap: 10px; align-items: center; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; border-radius: 2px; }

/* Hero */
.hero {
  padding: 80px 0 96px;
  background:
    radial-gradient(800px 400px at 85% 10%, rgba(10, 142, 255, .12), transparent 60%),
    linear-gradient(180deg, #EEF4FF, var(--bg));
}
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 600 .85rem var(--font); letter-spacing: .08em; text-transform: uppercase; color: var(--blue-2);
  margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 28px; height: 3px; background: var(--red); border-radius: 2px; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 700; }
.hero h1 .accent { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 540px; margin: 0 0 32px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-card {
  background: var(--surface); border-radius: 28px; padding: 48px; box-shadow: var(--shadow);
  border: 1px solid var(--line); position: relative;
}
.hero-card img { margin: auto; max-height: 280px; }
.hero-stats { display: flex; gap: 36px; margin-top: 40px; flex-wrap: wrap; }
.hero-stats strong { display: block; font: 700 1.8rem var(--font); color: var(--ink); }
.hero-stats span { color: var(--muted); font-size: .92rem; }

/* Sections */
section { padding: 88px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-head h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
.section-head p { color: var(--muted); margin: 0; }
.section-head .eyebrow { justify-content: center; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .icon {
  width: 52px; height: 52px; border-radius: 14px; background: var(--grad); color: #fff;
  display: grid; place-items: center; margin-bottom: 18px;
}
.card .icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.2rem; }
.card p { color: var(--muted); margin: 0; }

/* POS feature band */
.pos-band { background: var(--grad-dark); color: #DDE6F7; }
.pos-band h2, .pos-band h3 { color: #fff; }
.pos-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.check-list { list-style: none; padding: 0; margin: 24px 0 32px; display: grid; gap: 14px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; }
.check-list li::before {
  content: "✓"; flex: none; width: 24px; height: 24px; border-radius: 50%;
  background: rgba(10, 142, 255, .25); color: #6FA8FF; display: grid; place-items: center; font-weight: 700; font-size: .85rem;
}
.mock-pos {
  background: #0F1830; border: 1px solid rgba(255, 255, 255, .08); border-radius: 22px; padding: 18px;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .6);
}
.mock-bar { display: flex; gap: 6px; margin-bottom: 14px; }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, .2); }
.mock-body { display: grid; grid-template-columns: 1.6fr 1fr; gap: 12px; }
.mock-items { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mock-items div { background: rgba(255, 255, 255, .06); border-radius: 10px; height: 62px; }
.mock-items div:nth-child(2) { background: rgba(10, 142, 255, .35); }
.mock-cart { background: rgba(255, 255, 255, .05); border-radius: 12px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.mock-cart span { height: 10px; border-radius: 4px; background: rgba(255, 255, 255, .12); }
.mock-cart span:nth-child(2) { width: 70%; }
.mock-cart span:nth-child(3) { width: 85%; }
.mock-cart b { margin-top: auto; height: 34px; border-radius: 8px; background: var(--grad); }

/* Pricing */
.price-card { display: flex; flex-direction: column; }
.price-card.featured { border: 2px solid var(--blue-2); position: relative; box-shadow: var(--shadow); }
.price-card .badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--red); color: #fff; font-size: .8rem; font-weight: 600; padding: 3px 14px; border-radius: 999px;
}
.price { font: 700 2.4rem var(--font); color: var(--ink); margin: 8px 0 4px; }
.price small { font-size: 1rem; color: var(--muted); font-weight: 500; }
.price-card ul { list-style: none; padding: 0; margin: 18px 0 28px; display: grid; gap: 10px; color: var(--muted); }
.price-card ul li::before { content: "✓ "; color: var(--blue-2); font-weight: 700; }
.price-card .btn { margin-top: auto; }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-visual {
  background: var(--grad); border-radius: 28px; aspect-ratio: 4 / 3; display: grid; place-items: center; padding: 48px;
}
.about-visual img { max-width: 70%; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 32px; }
.contact-info { display: grid; gap: 16px; align-content: start; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-item .icon { margin: 0; width: 44px; height: 44px; flex: none; }

/* Forms */
.form { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 6px; color: var(--navy); }
.field input, .field select, .field textarea {
  width: 100%; padding: .8em 1em; border: 1.5px solid var(--line); border-radius: 12px;
  font: inherit; background: #fff; color: var(--navy); transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--blue-2); box-shadow: 0 0 0 4px rgba(0, 85, 245, .12);
}
.field .hint { font-size: .82rem; color: var(--muted); margin-top: 4px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; color: var(--muted); }
.check input { margin-top: 4px; accent-color: var(--blue-2); }
.alert { padding: 12px 16px; border-radius: 12px; font-size: .92rem; display: none; }
.alert.show { display: block; }
.alert.error { background: #FDECEC; color: #B3161E; border: 1px solid #F7C5C7; }
.alert.success { background: #E8F6EE; color: #11703F; border: 1px solid #BFE5CF; }

/* Footer */
.site-footer { background: var(--ink); color: #9AA6BC; padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.site-footer a { color: #9AA6BC; }
.site-footer a:hover { color: #fff; }
.footer-brand img { height: 44px; width: auto; margin-bottom: 16px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); margin-top: 48px; padding-top: 22px; font-size: .88rem; text-align: center; }

/* Auth pages */
.auth-page { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; }
.auth-side {
  background: var(--grad-dark); color: #C9D5EC; padding: 56px; display: flex; flex-direction: column; justify-content: space-between;
}
.auth-side h2 { color: #fff; font-size: 2.2rem; }
.auth-side img.logo { height: 48px; width: auto; }
.auth-main { display: grid; place-items: center; padding: 48px 24px; background: var(--surface); }
.auth-box { width: min(460px, 100%); }
.auth-box h1 { font-size: 1.9rem; }
.auth-box > p { color: var(--muted); margin-top: 0; margin-bottom: 28px; }
.auth-switch { text-align: center; margin-top: 22px; color: var(--muted); }
.auth-mobile-logo { display: none; height: 40px; width: auto; margin-bottom: 24px; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .pos-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .auth-page { grid-template-columns: 1fr; }
  .auth-side { display: none; }
  .auth-mobile-logo { display: block; }
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-menu {
    display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff;
    border-bottom: 1px solid var(--line); padding: 20px 16px; flex-direction: column; gap: 16px;
  }
  .nav-menu.open { display: flex; }
  .nav-links { flex-direction: column; align-items: flex-start; gap: 14px; }
  .nav-actions { width: 100%; }
  .nav-actions .btn { flex: 1; }
}
@media (min-width: 821px) {
  .nav-menu { display: flex; align-items: center; gap: 32px; }
}
@media (max-width: 600px) {
  section { padding: 64px 0; }
  .hero { padding: 48px 0 64px; }
  .hero-card { padding: 28px; }
  .grid-3, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .mock-body { grid-template-columns: 1fr; }
}