/* ==========================================================================
   Primewave Technologies — shared design system
   ========================================================================== */

:root {
  --bg: #05060a;
  --bg-soft: #0a0c14;
  --surface: #10121c;
  --surface-2: #161927;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f5f9;
  --text-dim: #b7bacb;
  --text-faint: #7a7e94;

  /* Primewave brand gradient (umbrella brand) */
  --brand-1: #4f7dff;
  --brand-2: #9b5cff;
  --brand-3: #ff5fa2;
  --brand-gradient: linear-gradient(120deg, var(--brand-1), var(--brand-2) 55%, var(--brand-3));

  /* Default per-page accent (overridden per product) */
  --accent: var(--brand-1);
  --accent-2: var(--brand-2);
  --accent-soft: rgba(79, 125, 255, 0.14);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;

  --shadow-soft: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 0 1px var(--border), 0 20px 60px -20px rgba(0, 0, 0, 0.7);

  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Per-product themes */
body.theme-clinician {
  --accent: #22d3c5;
  --accent-2: #2fb4a8;
  --accent-soft: rgba(34, 211, 197, 0.14);
}
body.theme-huddle {
  --accent: #ff8a4c;
  --accent-2: #ff5f7e;
  --accent-soft: rgba(255, 138, 76, 0.14);
}
body.theme-drop {
  --accent: #ec4ec0;
  --accent-2: #9b5cff;
  --accent-soft: rgba(236, 78, 192, 0.16);
}
body.theme-neurorunner {
  --accent: #7c5cff;
  --accent-2: #4f9dff;
  --accent-soft: rgba(124, 92, 255, 0.16);
}
body.theme-smartslab {
  --accent: #ffb648;
  --accent-2: #ff8a4c;
  --accent-soft: rgba(255, 182, 72, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 15% -10%, rgba(79, 125, 255, 0.16), transparent 45%),
    radial-gradient(circle at 90% 10%, rgba(155, 92, 255, 0.14), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(255, 95, 162, 0.08), transparent 45%);
  pointer-events: none;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  position: relative;
}

.section {
  padding: 108px 0;
}

.section-tight {
  padding: 72px 0;
}

@media (max-width: 720px) {
  .section { padding: 72px 0; }
  .section-tight { padding: 52px 0; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.gradient-text {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.accent-text {
  color: var(--accent);
}

/* ---------------------------------- Nav ---------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px) saturate(140%);
  background: rgba(5, 6, 10, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1180px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color 0.2s var(--ease);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-gradient);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav-toggle svg {
  width: 18px;
  height: 18px;
  color: var(--text);
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 66px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px;
    box-shadow: var(--shadow-soft);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: all 0.22s var(--ease);
  }
  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .nav-links a {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
  }
  .nav-links a:hover,
  .nav-links a.active {
    background: var(--surface-2);
  }
  .nav-links a.active::after { display: none; }
  .nav-toggle { display: flex; }
  .nav-cta .btn-outline { display: none; }
}

/* --------------------------------- Buttons -------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 14.5px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand-gradient);
  color: #05060a;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -8px rgba(155, 92, 255, 0.5);
}

.btn-accent {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #05060a;
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -8px var(--accent-soft);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 16px 30px;
  font-size: 15.5px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------------------------------- Hero ---------------------------------- */

.hero {
  padding: 96px 0 60px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.4vw, 4.4rem);
  max-width: 900px;
  margin: 0 auto;
}

.hero-sub {
  max-width: 620px;
  margin: 24px auto 0;
  font-size: 18px;
  color: var(--text-dim);
}

.hero .hero-actions {
  justify-content: center;
  margin-top: 40px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 28px;
}

/* Product page split hero */
.hero-split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  padding: 76px 0 40px;
  text-align: left;
}

.hero-split h1 {
  font-size: clamp(2.2rem, 4.4vw, 3.4rem);
  margin: 0;
}

.hero-split .hero-sub {
  margin: 22px 0 0;
  text-align: left;
}

.hero-split .hero-actions {
  justify-content: flex-start;
  margin-top: 34px;
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, var(--surface), var(--surface-2));
  aspect-ratio: 4/3.4;
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 30% 20%, var(--accent-soft), transparent 60%);
}

.hero-visual .visual-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual .visual-icon svg {
  width: 46%;
  height: 46%;
  color: var(--accent);
  filter: drop-shadow(0 20px 40px var(--accent-soft));
}

@media (max-width: 880px) {
  .hero-split {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 52px;
  }
  .hero-split .hero-sub,
  .hero-split .hero-actions {
    text-align: center;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-visual { max-width: 420px; margin: 0 auto; }
}

/* --------------------------------- Badges --------------------------------- */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
}

.pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* --------------------------------- Cards ---------------------------------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-soft);
}

.icon-tile {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  margin-bottom: 18px;
}

.icon-tile svg {
  width: 22px;
  height: 22px;
  color: var(--accent);
}

/* Section headers */
.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head.left {
  margin-left: 0;
  text-align: left;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
}

.section-head p {
  color: var(--text-dim);
  margin-top: 16px;
  font-size: 16.5px;
}

/* ------------------------------- Stats strip ------------------------------- */

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stat {
  padding: 40px 20px;
  text-align: center;
  border-left: 1px solid var(--border);
}

.stat:first-child { border-left: none; }

.stat .num {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 700;
}

.stat .label {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--text-faint);
}

@media (max-width: 720px) {
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
}

/* ------------------------------ Product grid ------------------------------ */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.product-card {
  display: flex;
  flex-direction: column;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(165deg, var(--surface), var(--bg-soft));
  position: relative;
  overflow: hidden;
  min-height: 260px;
}

.product-card::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -30%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, var(--card-glow, var(--accent-soft)), transparent 70%);
  opacity: 0.7;
  pointer-events: none;
}

.product-card .tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--card-accent, var(--accent));
  margin-bottom: 14px;
}

.product-card h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.product-card p {
  color: var(--text-dim);
  font-size: 14.5px;
  flex-grow: 1;
}

.product-card .card-link {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14px;
  color: var(--card-accent, var(--accent));
}

.product-card .card-link svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s var(--ease);
}

.product-card:hover .card-link svg {
  transform: translateX(4px);
}

.product-card.featured {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  min-height: unset;
  padding: 44px;
}

.product-card.featured .icon-tile {
  margin-bottom: 22px;
}

@media (max-width: 980px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .product-card.featured { grid-column: span 2; grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .product-grid { grid-template-columns: 1fr; }
  .product-card.featured { grid-column: span 1; }
}

/* ------------------------------ Feature grid ------------------------------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .feature-grid { grid-template-columns: 1fr; }
}

.feature-grid h4 {
  font-size: 17px;
  margin-bottom: 10px;
}

.feature-grid p {
  color: var(--text-dim);
  font-size: 14.5px;
}

/* ------------------------------ Platform strip ------------------------------ */

.platform-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.platform-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 13.5px;
  font-weight: 500;
}

.platform-chip svg {
  width: 15px;
  height: 15px;
  color: var(--accent);
}

/* --------------------------------- Split ----------------------------------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.split.reverse {
  grid-template-columns: 1fr 1fr;
}
.split.reverse .split-media { order: 2; }
.split.reverse .split-copy { order: 1; }

@media (max-width: 880px) {
  .split, .split.reverse {
    grid-template-columns: 1fr;
  }
  .split.reverse .split-media { order: 1; }
  .split.reverse .split-copy { order: 2; }
}

.split-copy h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin-bottom: 18px;
}

.split-copy p {
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 22px;
}

.check-list li {
  display: flex;
  gap: 12px;
  padding: 9px 0;
  font-size: 15px;
  color: var(--text-dim);
}

.check-list svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.split-media {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, var(--surface), var(--surface-2));
  padding: 8px;
  box-shadow: var(--shadow-glow);
}

.split-media-inner {
  border-radius: calc(var(--radius-lg) - 6px);
  background: var(--bg-soft);
  aspect-ratio: 5/4;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.split-media-inner svg {
  width: 42%;
  height: 42%;
  color: var(--accent);
}

/* -------------------------------- Callout box -------------------------------- */

.callout {
  border-radius: var(--radius-lg);
  padding: 56px;
  text-align: center;
  background: linear-gradient(135deg, var(--surface), var(--bg-soft));
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.callout::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--accent-soft), transparent 60%);
  pointer-events: none;
}

.callout h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  max-width: 640px;
  margin: 0 auto;
}

.callout p {
  color: var(--text-dim);
  max-width: 520px;
  margin: 18px auto 0;
}

.callout .hero-actions {
  justify-content: center;
  margin-top: 32px;
}

.disclaimer {
  margin-top: 26px;
  font-size: 12.5px;
  color: var(--text-faint);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* ---------------------------------- Form ------------------------------------ */

.form-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-soft);
  color: var(--text);
  font-family: inherit;
  font-size: 14.5px;
  transition: border-color 0.2s var(--ease);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.field textarea {
  resize: vertical;
  min-height: 100px;
}

.form-note {
  font-size: 12.5px;
  color: var(--text-faint);
  margin-top: 14px;
  text-align: center;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}

.form-success svg {
  width: 46px;
  height: 46px;
  color: var(--accent);
  margin: 0 auto 16px;
}

/* --------------------------------- Footer ------------------------------------ */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  margin-top: 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand p {
  color: var(--text-faint);
  font-size: 14px;
  margin-top: 14px;
  max-width: 280px;
}

.footer-col h5 {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 16px;
}

.footer-col li {
  margin-bottom: 11px;
}

.footer-col a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-faint);
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 800px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}

/* -------------------------------- Reveal anim -------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* -------------------------------- Utilities ---------------------------------- */

.mt-0 { margin-top: 0 !important; }
.text-center { text-align: center; }

.two-col-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 48px;
}

@media (max-width: 700px) {
  .two-col-head { flex-direction: column; align-items: flex-start; }
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
}

.back-link svg {
  width: 15px;
  height: 15px;
}

.back-link:hover {
  color: var(--accent);
}

.cross-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 900px) {
  .cross-links { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .cross-links { grid-template-columns: 1fr; }
}

.cross-link-card {
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  text-align: center;
}

.cross-link-card:hover {
  border-color: var(--border-strong);
}

.cross-link-card .icon-tile {
  margin: 0 auto 14px;
}

.cross-link-card h4 {
  font-size: 14.5px;
}

.variant-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

@media (max-width: 900px) {
  .variant-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .variant-grid { grid-template-columns: 1fr; }
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 32px;
}

@media (max-width: 600px) {
  .spec-list { grid-template-columns: 1fr; }
}

.spec-item {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14.5px;
}

.spec-item span:first-child {
  color: var(--text-faint);
}

.spec-item span:last-child {
  font-weight: 600;
  text-align: right;
}