/* =============================================================
   Neurix Systems — component styles
   Plain CSS. Namespaced by .neurix-<component>. Uses tokens.css.
   ============================================================= */

*, *::before, *::after { box-sizing: border-box; }

/* ---------- Nav ---------- */
.neurix-nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  background: rgba(11,18,32,0.75);
  border-bottom: 1px solid #1C2742;
}
.neurix-nav__inner {
  max-width: 1200px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 28px;
}
.neurix-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.neurix-logo__mark { width: 32px; height: 32px; }
.neurix-logo__type { display: flex; flex-direction: column; line-height: 1; }
.neurix-logo__word { font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -0.5px; color: #F8FAFC; }
.neurix-logo__sub { font-family: var(--font-display); font-weight: 500; font-size: 10px; letter-spacing: 4px; color: var(--accent); margin-top: 2px; }
.neurix-nav__links { display: flex; gap: 22px; margin-left: 16px; }
.neurix-nav__links a { color: #CBD5E1; font-size: 14px; text-decoration: none; transition: color var(--dur-base) var(--ease-out); }
.neurix-nav__links a:hover, .neurix-nav__links a.is-active { color: var(--accent); }
.neurix-nav__spacer { flex: 1; }
.neurix-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border: 0; border-radius: var(--r-md);
  font-family: var(--font-display); font-weight: 600; font-size: 14px;
  cursor: pointer; text-decoration: none;
  transition: all var(--dur-base) var(--ease-out);
}
.neurix-btn--primary { background: var(--brand); color: #fff; box-shadow: 0 10px 30px rgba(37,99,235,0.3); }
.neurix-btn--primary:hover { background: var(--brand-hover); }
.neurix-btn--accent { background: var(--accent); color: var(--neurix-ink); }
.neurix-btn--accent:hover { filter: brightness(1.05); }
.neurix-btn--ghost-dark { background: transparent; color: #F8FAFC; border: 1px solid #273253; }
.neurix-btn--ghost-dark:hover { background: rgba(255,255,255,0.04); }
.neurix-btn--lg { padding: 14px 22px; border-radius: 12px; font-size: 15px; }

/* ---------- Hero ---------- */
.neurix-hero { position: relative; background: var(--neurix-ink); color: #F8FAFC; padding: 96px 24px 112px; overflow: hidden; }
.neurix-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 40%, rgba(56,189,248,0.18), transparent 60%);
  pointer-events: none;
}
.neurix-hero__inner { max-width: 1200px; margin: 0 auto; position: relative; display: grid; grid-template-columns: 1fr 0.8fr; gap: 40px; align-items: center; overflow: visible; }
.neurix-hero__inner > div:first-child { min-width: 0; overflow: visible; }
.neurix-hero h1 { overflow: visible; word-break: normal; }
.neurix-hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; background: rgba(56,189,248,0.12); border: 1px solid rgba(56,189,248,0.3);
  border-radius: 999px; font-size: 12px; font-weight: 600; color: #7DD3FC; letter-spacing: 0.04em; margin-bottom: 20px;
}
.neurix-hero__eyebrow .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--accent); box-shadow: 0 0 0 4px rgba(56,189,248,0.25); }
.neurix-hero h1 { font-family: var(--font-display); font-size: 52px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.05; margin: 0 0 20px; }
.neurix-hero h1 em { font-style: italic; background: linear-gradient(120deg,#38BDF8,#2563EB); -webkit-background-clip: text; background-clip: text; color: transparent; }
.neurix-hero p { font-size: 17px; line-height: 1.6; color: #CBD5E1; margin: 0 0 28px; max-width: 560px; }
.neurix-hero__ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.neurix-hero__art { position: relative; aspect-ratio: 1; background: radial-gradient(circle at 50% 50%, rgba(30,58,138,0.35), rgba(11,18,32,0) 70%); border-radius: 24px; display: flex; align-items: center; justify-content: center; }
.neurix-hero__art img { width: 72%; filter: drop-shadow(0 20px 60px rgba(56,189,248,0.3)); }

/* ---------- Stats ---------- */
.neurix-stats { background: var(--neurix-ink); border-top: 1px solid #1C2742; padding: 40px 24px; }
.neurix-stats__inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.neurix-stat { text-align: center; }
.neurix-stat__k { font-family: var(--font-display); font-size: 44px; font-weight: 700; letter-spacing: -0.02em; color: var(--accent); }
.neurix-stat__v { font-size: 13px; color: #94A3B8; margin-top: 4px; }

/* ---------- Shared section primitives ---------- */
.neurix-section { padding: 112px 24px; }
.neurix-section--light { background: var(--slate-50); }
.neurix-section--white { background: #fff; }
.neurix-section--dark { background: var(--neurix-ink); color: #F8FAFC; position: relative; overflow: hidden; }
.neurix-section--dark::before { content:''; position:absolute; inset:0; background: radial-gradient(circle at 30% 100%, rgba(37,99,235,0.2), transparent 60%); pointer-events:none; }
.neurix-section__inner { max-width: 1200px; margin: 0 auto; position: relative; }
.neurix-eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.neurix-h2 { font-family: var(--font-display); font-size: 42px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 14px; color: var(--neurix-ink); }
.neurix-section--dark .neurix-h2 { color: #F8FAFC; }
.neurix-lede { font-size: 17px; line-height: 1.6; color: var(--fg2); margin: 0; }
.neurix-section--dark .neurix-lede { color: #CBD5E1; }
.neurix-section__head { text-align: center; max-width: 760px; margin: 0 auto 48px; }

/* ---------- About (value cards) ---------- */
.neurix-grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.neurix-vcard { background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg); padding: 24px; box-shadow: var(--shadow-sm); }
.neurix-vcard h3 { font-family: var(--font-display); font-size: 20px; font-weight: 600; margin: 0 0 8px; color: var(--neurix-ink); }
.neurix-vcard p { font-size: 14px; line-height: 1.6; color: var(--fg2); margin: 0; }

/* ---------- Services ---------- */
.neurix-service {
  border: 1px solid var(--border); border-radius: var(--r-lg); padding: 28px;
  background: var(--slate-50);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
  display: block; text-decoration: none;
}
.neurix-service:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); background: #fff; }
.neurix-service__icon { width: 52px; height: 52px; border-radius: 12px; background: var(--neurix-ink); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 16px; }
.neurix-service h3 { font-family: var(--font-display); font-size: 22px; font-weight: 600; margin: 0 0 10px; color: var(--neurix-ink); }
.neurix-service p { font-size: 14px; line-height: 1.6; color: var(--fg2); margin: 0 0 18px; }
.neurix-service__cta { color: var(--brand); font-weight: 600; font-size: 14px; }

/* ---------- Products ---------- */
.neurix-product {
  position: relative;
  background: #fff; color: var(--neurix-ink);
  border: 1px solid var(--border); border-radius: var(--r-lg); padding: 28px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.neurix-product--featured { background: var(--neurix-ink); color: #F8FAFC; border-color: #273253; box-shadow: 0 0 0 1px rgba(56,189,248,0.25), 0 24px 60px rgba(37,99,235,0.25); }
.neurix-product--featured::after { content:''; position:absolute; inset:-40% -40% auto auto; width:260px; height:260px; background: radial-gradient(circle, rgba(56,189,248,0.25), transparent 60%); pointer-events:none; }
.neurix-product__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; position: relative; }
.neurix-product__emoji { font-size: 32px; }
.neurix-product h3 { font-family: var(--font-display); font-size: 24px; font-weight: 600; margin: 0 0 10px; position: relative; }
.neurix-product p { font-size: 14px; line-height: 1.55; color: var(--fg2); margin: 0 0 18px; position: relative; }
.neurix-product--featured p { color: #CBD5E1; }
.neurix-product__list { list-style: none; padding: 0; margin: 0 0 24px; display: flex; flex-direction: column; gap: 8px; position: relative; }
.neurix-product__list li { font-size: 13px; color: var(--fg3); display: flex; gap: 8px; align-items: flex-start; }
.neurix-product--featured .neurix-product__list li { color: #94A3B8; }
.neurix-product__list li::before { content: '✓'; color: var(--accent); margin-top: 2px; }
.neurix-product .neurix-btn { width: 100%; justify-content: center; }

.neurix-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px; font-size: 11px; font-weight: 600;
}
.neurix-badge--live { background: rgba(16,185,129,0.14); color: #047857; }
.neurix-badge--live .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--success); box-shadow: 0 0 0 3px rgba(16,185,129,0.25); }
.neurix-badge--custom { background: rgba(56,189,248,0.16); color: #0369A1; }

/* ---------- Process ---------- */
.neurix-grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.neurix-step { padding: 24px; border: 1px solid #1C2742; border-radius: var(--r-lg); background: rgba(17,26,46,0.6); backdrop-filter: blur(4px); }
.neurix-step__n { font-family: var(--font-display); font-size: 48px; font-weight: 700; color: var(--accent); line-height: 1; margin-bottom: 12px; }
.neurix-step h3 { font-family: var(--font-display); font-size: 19px; font-weight: 600; margin: 0 0 8px; color: #F8FAFC; }
.neurix-step p { font-size: 13px; line-height: 1.6; color: #94A3B8; margin: 0; }

/* ---------- Contact ---------- */
.neurix-contact { padding: 112px 24px; background: #fff; }
.neurix-contact__inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.neurix-contact h2 { font-family: var(--font-display); font-size: 42px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 14px; color: var(--neurix-ink); }
.neurix-contact__lede { font-size: 16px; line-height: 1.6; color: var(--fg2); margin: 0 0 28px; }
.neurix-contact__feat { display: flex; gap: 14px; margin-bottom: 16px; }
.neurix-contact__feat-icon { width: 40px; height: 40px; border-radius: 10px; background: var(--slate-100); display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.neurix-contact__feat h4 { font-family: var(--font-display); font-weight: 600; font-size: 15px; color: var(--neurix-ink); margin: 0; }
.neurix-contact__feat p { font-size: 13px; color: var(--fg3); margin: 2px 0 0; }

.neurix-form { background: var(--slate-50); border: 1px solid var(--border); border-radius: var(--r-xl); padding: 32px; }
.neurix-form h3 { font-family: var(--font-display); font-size: 22px; font-weight: 600; margin: 0 0 20px; color: var(--neurix-ink); }
.neurix-form form { display: grid; gap: 12px; }
.neurix-form .row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.neurix-form label { display: block; font-size: 12px; font-weight: 600; color: var(--fg1); margin-bottom: 4px; }
.neurix-form input, .neurix-form select, .neurix-form textarea {
  width: 100%; padding: 11px 13px;
  border: 1px solid var(--border); border-radius: 8px; background: #fff;
  font-family: var(--font-body); font-size: 14px; color: var(--neurix-ink);
  outline: none; transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.neurix-form input:focus, .neurix-form select:focus, .neurix-form textarea:focus {
  border-color: var(--brand); box-shadow: 0 0 0 3px rgba(56,189,248,0.25);
}
.neurix-form textarea { min-height: 110px; resize: vertical; }
.neurix-form .has-error input, .neurix-form .has-error select, .neurix-form .has-error textarea { border-color: var(--danger); }
.neurix-form .error { color: var(--danger); font-size: 12px; margin-top: 4px; }
.neurix-form button[type=submit] { padding: 13px 18px; font-size: 15px; justify-content: center; width: 100%; }

.neurix-form__success { padding: 36px 16px; text-align: center; }
.neurix-form__success .emoji { font-size: 44px; margin-bottom: 10px; }
.neurix-form__success h4 { font-family: var(--font-display); font-size: 20px; font-weight: 600; color: var(--neurix-ink); margin: 0 0 6px; }
.neurix-form__success p { font-size: 14px; color: var(--fg3); margin: 0; }

/* ---------- Footer ---------- */
.neurix-footer { background: var(--neurix-ink); color: #94A3B8; padding: 56px 24px 28px; border-top: 1px solid #1C2742; }
.neurix-footer__inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr 1fr; gap: 40px; }
.neurix-footer p { font-size: 13px; line-height: 1.6; color: #64748B; margin: 16px 0 0; }
.neurix-footer__col h4 { font-family: var(--font-display); font-weight: 600; font-size: 14px; color: #F8FAFC; margin: 0 0 14px; }
.neurix-footer__col a { display: block; font-size: 13px; color: #94A3B8; text-decoration: none; margin-bottom: 8px; }
.neurix-footer__col a:hover { color: var(--accent); }
.neurix-footer__legal { max-width: 1200px; margin: 40px auto 0; padding-top: 24px; border-top: 1px solid #1C2742; display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: #64748B; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .neurix-hero__inner { grid-template-columns: 1fr; }
  .neurix-hero h1 { font-size: 44px; }
  .neurix-grid-3, .neurix-grid-4, .neurix-stats__inner { grid-template-columns: repeat(2,1fr); }
  .neurix-contact__inner { grid-template-columns: 1fr; }
  .neurix-footer__inner { grid-template-columns: repeat(2,1fr); }
  .neurix-nav__links { display: none; }
}
@media (max-width: 560px) {
  .neurix-section { padding: 72px 20px; }
  .neurix-hero { padding: 64px 20px 80px; }
  .neurix-hero h1 { font-size: 34px; }
  .neurix-h2 { font-size: 30px; }
  .neurix-grid-3, .neurix-grid-4, .neurix-stats__inner, .neurix-footer__inner { grid-template-columns: 1fr; }
  .neurix-form .row-2 { grid-template-columns: 1fr; }
}

/* ── Nav additions: lang switcher + login dropdown ── */
.neurix-nav__lang { display:flex; align-items:center; gap:4px; margin-right:8px; }
.neurix-lang-btn { font-size:12px; font-weight:600; color:var(--neurix-cyan-300); text-decoration:none; padding:2px 4px; border-radius:4px; transition:color .2s; }
.neurix-lang-btn.is-active { color:#fff; }
.neurix-lang-btn:hover { color:#fff; }
.neurix-lang-sep { color:var(--slate-600); font-size:11px; }

.neurix-nav__login-wrap { position:relative; }
.neurix-btn--ghost { background:transparent; color:var(--neurix-cyan-300); border:1px solid rgba(91,192,248,0.3); padding:8px 16px; border-radius:6px; font-size:13px; font-weight:600; cursor:pointer; transition:all .2s; white-space:nowrap; }
.neurix-btn--ghost:hover { border-color:var(--neurix-cyan-400); color:#fff; }
.neurix-nav__login-dropdown { display:none; position:absolute; top:calc(100% + 8px); right:0; background:var(--neurix-ink-2); border:1px solid rgba(255,255,255,0.08); border-radius:8px; min-width:160px; overflow:hidden; box-shadow:0 8px 24px rgba(0,0,0,0.3); z-index:200; }
.neurix-nav__login-wrap.is-open .neurix-nav__login-dropdown { display:block; }
.neurix-nav__login-dropdown a { display:block; padding:12px 16px; font-size:13px; color:var(--slate-300); text-decoration:none; transition:background .15s; }
.neurix-nav__login-dropdown a:hover { background:var(--neurix-ink-3); color:#fff; }

/* ── Mobile hamburger nav ── */
.neurix-nav__hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.neurix-nav__hamburger span {
  display: block; width: 22px; height: 2px;
  background: #CBD5E1; border-radius: 2px;
  transition: all .2s;
}
.neurix-nav__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.neurix-nav__hamburger.is-open span:nth-child(2) { opacity: 0; }
.neurix-nav__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.neurix-nav__mobile {
  display: none; flex-direction: column;
  background: rgba(11,18,32,0.97);
  border-top: 1px solid #1C2742;
  padding: 16px 24px 24px;
}
.neurix-nav__mobile.is-open { display: flex; }
.neurix-nav__mobile a {
  color: #CBD5E1; text-decoration: none; font-size: 15px;
  padding: 12px 0; border-bottom: 1px solid #1C2742;
}
.neurix-nav__mobile a:last-child { border-bottom: none; }
.neurix-nav__mobile a:hover, .neurix-nav__mobile a.is-active { color: var(--accent); }

@media (max-width: 960px) {
  .neurix-nav__links,
  .neurix-nav__lang,
  .neurix-nav__login-wrap,
  .neurix-nav__spacer { display: none; }
  .neurix-btn--accent { display: none; }
  .neurix-nav__hamburger { display: flex; margin-left: auto; }
}

/* ── Nav additions: lang switcher + login dropdown ── */
.neurix-nav__lang { display:flex; align-items:center; gap:4px; margin-right:8px; }
.neurix-lang-btn { font-size:12px; font-weight:600; color:var(--neurix-cyan-300); text-decoration:none; padding:2px 4px; border-radius:4px; transition:color .2s; }
.neurix-lang-btn.is-active { color:#fff; }
.neurix-lang-btn:hover { color:#fff; }
.neurix-lang-sep { color:var(--slate-600); font-size:11px; }
.neurix-nav__login-wrap { position:relative; }
.neurix-btn--ghost { background:transparent; color:var(--neurix-cyan-300); border:1px solid rgba(91,192,248,0.3); padding:8px 16px; border-radius:6px; font-size:13px; font-weight:600; cursor:pointer; transition:all .2s; white-space:nowrap; }
.neurix-btn--ghost:hover { border-color:var(--neurix-cyan-400); color:#fff; }
.neurix-nav__login-dropdown { display:none; position:absolute; top:calc(100% + 8px); right:0; background:var(--neurix-ink-2); border:1px solid rgba(255,255,255,0.08); border-radius:8px; min-width:160px; overflow:hidden; box-shadow:0 8px 24px rgba(0,0,0,0.3); z-index:200; }
.neurix-nav__login-wrap.is-open .neurix-nav__login-dropdown { display:block; }
.neurix-nav__login-dropdown a { display:block; padding:12px 16px; font-size:13px; color:var(--slate-300); text-decoration:none; transition:background .15s; }
.neurix-nav__login-dropdown a:hover { background:var(--neurix-ink-3); color:#fff; }