/* ============================================================
   SYNAPZ GROUP — synapzgroup.net
   Stylesheet v1.0
   ============================================================ */

/* --- Fonts: local/system stack for zero external runtime dependency --- */
/* --- Reset & base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  background: #0A0E1A;
  color: #E8EDF5;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* --- Colour tokens --- */
:root {
  --c-bg:        #0A0E1A;
  --c-surface:   #111827;
  --c-surface2:  #1A2235;
  --c-border:    #1F2D47;
  --c-accent:    #3B82F6;
  --c-accent2:   #60A5FA;
  --c-text:      #E8EDF5;
  --c-muted:     #8A9BBE;
  --c-white:     #FFFFFF;
  --radius:      8px;
  --radius-lg:   16px;
  --max-w:       1120px;
  --nav-h:       68px;
}

/* --- Utility --- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

a { color: var(--c-accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

img { display: block; max-width: 100%; }

/* --- Navigation --- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  display: flex; align-items: center;
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
}
.nav__logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--c-white); font-weight: 700; font-size: 1.15rem;
  letter-spacing: -0.02em; text-decoration: none;
}
.nav__logo svg { width: 32px; height: 32px; }
.nav__links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}
.nav__links a {
  color: var(--c-muted); font-size: 0.9rem; font-weight: 500;
  text-decoration: none; transition: color 0.2s;
}
.nav__links a:hover { color: var(--c-white); }
.nav__cta {
  background: var(--c-accent); color: var(--c-white) !important;
  padding: 8px 20px; border-radius: var(--radius);
  font-weight: 600 !important; font-size: 0.875rem !important;
  transition: background 0.2s !important;
}
.nav__cta:hover { background: var(--c-accent2) !important; text-decoration: none !important; }

.nav__hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav__hamburger span { display: block; width: 24px; height: 2px; background: var(--c-text); margin: 5px 0; border-radius: 2px; transition: all 0.3s; }

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  position: relative; overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  pointer-events: none;
}
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero__glow {
  position: absolute; top: 20%; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 400px;
  background: radial-gradient(ellipse at center, rgba(59,130,246,0.18) 0%, transparent 70%);
}
.hero__content {
  position: relative; z-index: 1;
  max-width: 760px;
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(59,130,246,0.12); border: 1px solid rgba(59,130,246,0.3);
  color: var(--c-accent2); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 100px; margin-bottom: 28px;
}
.hero__eyebrow::before {
  content: ''; display: block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 8px var(--c-accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; } 50% { opacity: 0.3; }
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -0.03em; color: var(--c-white);
  margin-bottom: 24px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, #3B82F6 0%, #60A5FA 50%, #93C5FD 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero__sub {
  font-size: 1.125rem; color: var(--c-muted); max-width: 560px;
  margin-bottom: 40px; font-weight: 400;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius);
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  text-decoration: none; border: none; transition: all 0.2s;
}
.btn--primary {
  background: var(--c-accent); color: var(--c-white);
  box-shadow: 0 0 30px rgba(59,130,246,0.3);
}
.btn--primary:hover { background: var(--c-accent2); transform: translateY(-1px); text-decoration: none; color: var(--c-white); }
.btn--ghost {
  background: transparent; color: var(--c-text);
  border: 1px solid var(--c-border);
}
.btn--ghost:hover { border-color: var(--c-accent); color: var(--c-accent2); text-decoration: none; }

.hero__stats {
  display: flex; gap: 40px; margin-top: 56px; flex-wrap: wrap;
  padding-top: 40px; border-top: 1px solid var(--c-border);
}
.stat__val { font-size: 1.75rem; font-weight: 800; color: var(--c-white); letter-spacing: -0.02em; }
.stat__label { font-size: 0.8rem; color: var(--c-muted); font-weight: 500; margin-top: 2px; }

/* --- Section base --- */
section { padding: 96px 0; }
.section__eyebrow {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--c-accent2);
  margin-bottom: 14px;
}
.section__title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800; letter-spacing: -0.025em;
  color: var(--c-white); line-height: 1.15; margin-bottom: 18px;
}
.section__body {
  font-size: 1.05rem; color: var(--c-muted);
  max-width: 600px; line-height: 1.7;
}

/* --- About section --- */
.about { background: var(--c-surface); }
.about__grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about__points { margin-top: 36px; display: flex; flex-direction: column; gap: 20px; }
.about__point {
  display: flex; gap: 16px; align-items: flex-start;
}
.about__point-icon {
  flex-shrink: 0; width: 40px; height: 40px;
  background: rgba(59,130,246,0.12); border: 1px solid rgba(59,130,246,0.25);
  border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
  color: var(--c-accent2); font-size: 1rem;
}
.about__point-text strong { display: block; color: var(--c-white); font-weight: 600; margin-bottom: 4px; }
.about__point-text span { font-size: 0.9rem; color: var(--c-muted); }

.about__visual {
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 40px; position: relative; overflow: hidden;
}
.about__visual-label {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--c-accent2);
  margin-bottom: 20px;
}
.pipeline {
  display: flex; flex-direction: column; gap: 12px;
}
.pipeline__step {
  display: flex; align-items: center; gap: 12px;
  background: rgba(59,130,246,0.06); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 12px 16px;
  font-size: 0.875rem; color: var(--c-text); font-weight: 500;
}
.pipeline__step-num {
  background: var(--c-accent); color: var(--c-white);
  border-radius: 4px; width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 800; flex-shrink: 0;
}
.pipeline__arrow {
  text-align: center; color: var(--c-border); font-size: 1rem; line-height: 1;
}

/* --- Platform section --- */
.platform__intro { max-width: 680px; margin-bottom: 64px; }
.cards {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 32px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: rgba(59,130,246,0.4); transform: translateY(-3px); }
.card__icon {
  width: 48px; height: 48px; border-radius: var(--radius);
  background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 20px;
}
.card h3 { font-size: 1.05rem; font-weight: 700; color: var(--c-white); margin-bottom: 10px; }
.card p { font-size: 0.875rem; color: var(--c-muted); line-height: 1.65; }

/* --- Company section --- */
.company { background: var(--c-surface); }
.company__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.company__reg {
  background: var(--c-surface2); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 28px; margin-top: 32px;
}
.company__reg-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0; border-bottom: 1px solid var(--c-border);
  font-size: 0.875rem;
}
.company__reg-row:last-child { border-bottom: none; }
.company__reg-row dt { color: var(--c-muted); font-weight: 500; }
.company__reg-row dd { color: var(--c-white); font-weight: 600; }

/* --- Contact section --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 20px 24px;
}
.contact-item__icon {
  width: 40px; height: 40px; border-radius: var(--radius);
  background: rgba(59,130,246,0.1); display: flex; align-items: center;
  justify-content: center; font-size: 1.1rem; flex-shrink: 0;
  border: 1px solid rgba(59,130,246,0.2);
}
.contact-item dt { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--c-muted); margin-bottom: 4px; }
.contact-item dd { color: var(--c-white); font-weight: 500; font-size: 0.95rem; }
.contact-item dd a { color: var(--c-accent2); }

/* --- Footer --- */
footer {
  background: var(--c-bg); border-top: 1px solid var(--c-border);
  padding: 56px 0 32px;
}
.footer__top { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; flex-wrap: wrap; margin-bottom: 48px; }
.footer__brand p { font-size: 0.875rem; color: var(--c-muted); max-width: 300px; margin-top: 14px; line-height: 1.6; }
.footer__links { display: flex; gap: 48px; flex-wrap: wrap; }
.footer__col h4 { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-white); margin-bottom: 16px; }
.footer__col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer__col ul a { color: var(--c-muted); font-size: 0.875rem; text-decoration: none; transition: color 0.2s; }
.footer__col ul a:hover { color: var(--c-white); }
.footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  padding-top: 28px; border-top: 1px solid var(--c-border);
  font-size: 0.8rem; color: var(--c-muted);
}
.footer__bottom a { color: var(--c-muted); text-decoration: none; }
.footer__bottom a:hover { color: var(--c-white); }

/* --- Inner page (privacy/terms/contact) --- */
.page-hero {
  padding-top: calc(var(--nav-h) + 64px);
  padding-bottom: 64px;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -0.025em; color: var(--c-white); margin-bottom: 12px; }
.page-hero p { color: var(--c-muted); font-size: 1rem; }
.page-content { padding: 64px 0 96px; max-width: 760px; }
.page-content h2 { font-size: 1.3rem; font-weight: 700; color: var(--c-white); margin: 40px 0 12px; }
.page-content h3 { font-size: 1.05rem; font-weight: 600; color: var(--c-text); margin: 28px 0 8px; }
.page-content p, .page-content li { font-size: 0.95rem; color: var(--c-muted); line-height: 1.75; margin-bottom: 12px; }
.page-content ul, .page-content ol { padding-left: 20px; }
.page-content a { color: var(--c-accent2); }
.page-content strong { color: var(--c-text); }
.last-updated { display: inline-block; background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.25); color: var(--c-accent2); font-size: 0.78rem; font-weight: 600; padding: 4px 12px; border-radius: 100px; margin-bottom: 32px; }

/* --- Contact form page --- */
.contact-form-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--c-text); margin-bottom: 8px; letter-spacing: 0.03em; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; background: var(--c-surface2); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 12px 16px;
  color: var(--c-text); font-family: inherit; font-size: 0.9rem;
  transition: border-color 0.2s; outline: none;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
.form-group textarea { resize: vertical; min-height: 130px; }
.form-notice { font-size: 0.8rem; color: var(--c-muted); margin-top: 12px; }

/* --- Responsive --- */
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .about__grid, .company__grid, .contact-grid, .contact-form-wrap { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .nav__links.is-open {
    display: flex; flex-direction: column; gap: 0;
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: var(--c-surface); border-bottom: 1px solid var(--c-border);
    padding: 16px 0;
  }
  .nav__links.is-open li a { display: block; padding: 12px 24px; }
  .nav__hamburger { display: block; }
  .footer__links { gap: 32px; }
  .hero__stats { gap: 24px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; } }