*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-md);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* --- Header --- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(10px);
}

.nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: var(--space-sm);
  position: relative;
}

.nav-logo img {
  max-height: 56px;
  width: auto;
}

.nav-toggle {
  display: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s ease;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.2s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a.nav-cta {
  color: var(--color-accent);
  text-transform: none;
  letter-spacing: normal;
}

.nav-links a.nav-cta::after {
  content: none;
}

.nav-links a.nav-cta:hover {
  opacity: 0.85;
  color: var(--color-accent);
}

/* --- Hero --- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  padding-block: 0; /* override global section padding */
}

.hero video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(
      to bottom,
      rgba(10, 10, 10, 0.6),
      rgba(10, 10, 10, 0.85)
    ),
    linear-gradient(
      to top,
      color-mix(in srgb, var(--color-accent) 18%, transparent),
      transparent 40%
    );
}

.hero-content {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: 0.05em;
}

.hero-content > p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-inline: auto;
  margin-top: var(--space-md);
}

.hero-cta {
  display: inline-block;
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.hero-cta:hover {
  opacity: 0.85;
}

/* --- Section rhythm --- */
main > section {
  padding-block: var(--space-xl);
}

main > section.hero {
  padding-block: 0;
}

main > section h2 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
  text-align: center;
}

main > section p {
  color: var(--color-text-secondary);
  max-width: 700px;
}

[id="products"],
[id="about"],
[id="leadership"],
[id="contact"] {
  scroll-margin-top: 80px;
}

/* --- Footer --- */
footer {
  padding-block: var(--space-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.footer-logo {
  max-height: 40px;
  width: auto;
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
  margin: 0;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color 0.2s ease;
}

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

.footer-legal {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  opacity: 0.6;
  line-height: 1.6;
  margin: 0;
}

/* --- Products --- */
.products-intro {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 700px;
  margin-inline: auto;
  text-align: center;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  justify-items: center;
}

.product-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  width: 100%;
  max-width: 400px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

.product-icon {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-size: var(--font-size-xl);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

img.product-icon {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.product-icon--placeholder {
  background: transparent;
  border: 2px dashed var(--color-border);
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

.product-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: var(--space-md);
}

.product-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  margin-top: var(--space-xs);
}

.product-description {
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
  max-width: none;
}

.product-platforms {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-md);
}

.product-badge {
  display: inline-block;
  margin-top: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-bg-primary);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
}

a.product-badge {
  text-decoration: none;
  transition: opacity 0.2s ease;
  cursor: pointer;
}

a.product-badge:hover {
  opacity: 0.85;
}

/* --- About --- */
.about-inner {
  max-width: 800px;
  margin-inline: auto;
}

.about-block {
  margin-top: var(--space-lg);
}

.about-block:first-of-type {
  margin-top: var(--space-md);
}

.about-subheading {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.about-block p {
  color: var(--color-text-secondary);
  max-width: none;
}

.values-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-sm);
}

.value-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.value-keyword {
  font-weight: 600;
  color: var(--color-accent);
}

.value-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* --- Founder --- */
.founder-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  max-width: 900px;
  margin-inline: auto;
  margin-top: var(--space-md);
}

.founder-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.founder-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

.founder-title {
  color: var(--color-accent);
  margin-top: var(--space-xs);
}

.founder-bio {
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
  max-width: none;
}

.founder-supporting {
  margin-top: var(--space-lg);
  text-align: center;
  font-size: var(--font-size-sm);
  font-style: italic;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-inline: auto;
}

/* --- Responsive: Tablet (max-width: 768px) --- */
@media (max-width: 768px) {
  /* General */
  body {
    overflow-x: hidden;
  }

  .container {
    padding-inline: var(--space-md);
  }

  main > section {
    padding-block: var(--space-lg);
  }

  main > section h2 {
    font-size: var(--font-size-lg);
  }

  main > section p,
  .products-intro {
    max-width: 100%;
  }

  /* Header */
  .nav-bar {
    padding-block: var(--space-sm);
  }

  .nav-logo img {
    max-height: 44px;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    min-height: 44px;
    min-width: 44px;
    z-index: 110;
  }

  .nav-toggle-bar {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-md) 0;
    z-index: 105;
    text-align: center;
    gap: 0;
  }

  header.nav-open .nav-links {
    display: flex;
  }

  .nav-links li {
    padding: var(--space-sm) var(--space-md);
  }

  .nav-links a {
    font-size: var(--font-size-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    padding-inline: var(--space-sm);
  }

  header.nav-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  header.nav-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  header.nav-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Hero */
  .hero-content {
    padding-inline: var(--space-sm);
  }

  .hero-content > p {
    font-size: var(--font-size-md);
    max-width: 100%;
  }

  .hero-cta {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* Products */
  .product-badge {
    white-space: nowrap;
  }

  /* About */
  .about-inner {
    max-width: 100%;
  }

  .values-list {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Founder */
  .founder-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 100%;
  }

  .founder-info {
    text-align: center;
  }

  .founder-photo {
    width: 160px;
    height: 160px;
  }

  /* Footer */
  .footer-links {
    gap: var(--space-md);
  }

  /* Legal pages */
  main#main.container {
    padding-block: var(--space-lg);
  }

  main#main.container h1 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
  }

  /* Contact */
  .form-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Responsive: Mobile (max-width: 480px) --- */
@media (max-width: 480px) {
  /* General */
  .container {
    padding-inline: var(--space-md);
  }

  main > section {
    padding-block: var(--space-md);
  }

  main > section.hero {
    padding-block: 0;
  }

  /* Header */
  .nav-logo img {
    max-height: 36px;
  }

  /* Hero */
  .hero h1 {
    letter-spacing: 0.02em;
  }

  .hero-content > p {
    padding-inline: var(--space-xs);
  }

  .hero-cta {
    width: 100%;
    max-width: 280px;
  }

  /* Products */
  .products-grid {
    grid-template-columns: 1fr;
  }

  .product-card {
    max-width: 100%;
    padding: var(--space-md);
  }

  .products-intro {
    margin-bottom: var(--space-md);
  }

  /* About */
  .values-list {
    grid-template-columns: 1fr;
  }

  /* Founder */
  .founder-card {
    padding: var(--space-md);
  }

  .founder-photo {
    width: 140px;
    height: 140px;
  }

  .founder-supporting {
    max-width: 100%;
    padding-inline: var(--space-xs);
  }

  /* Footer */
  .footer-links {
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
  }

  /* Legal pages */
  main#main.container {
    padding-block: var(--space-md);
  }

  main#main.container h1 {
    font-size: var(--font-size-lg);
  }

  /* Contact */
  .contact-card {
    padding: var(--space-md);
  }
}

/* --- Legal pages --- */
.legal-content {
  max-width: 800px;
  margin-inline: auto;
  padding-block: var(--space-xl);
}

.legal-content h1 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.legal-date {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.legal-content h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  max-width: none;
  line-height: 1.7;
}

.legal-content p:last-child {
  margin-bottom: 0;
}

.legal-content ul {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
  line-height: 1.7;
}

.legal-content li {
  margin-bottom: var(--space-xs);
}

.legal-content li:last-child {
  margin-bottom: 0;
}

.legal-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-content a:hover {
  opacity: 0.85;
}

/* --- Contact --- */
.contact-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
}

.contact-response {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-style: italic;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-sm);
  font: inherit;
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  min-height: 44px;
  transition: border-color 0.2s ease;
}

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

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  appearance: none;
  cursor: pointer;
}

.contact-btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-weight: 600;
  font-size: var(--font-size-md);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: opacity 0.2s ease;
  min-height: 44px;
}

.contact-btn:hover {
  opacity: 0.85;
}

.contact-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.contact-alert {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.contact-alert--success {
  background: var(--color-bg-secondary);
}

.contact-alert--success p {
  margin: 0;
  color: var(--color-accent);
}

.contact-alert--error {
  background: var(--color-bg-secondary);
  color: #ff6b6b;
}

.form-submit {
  margin-top: var(--space-md);
  margin-bottom: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Email obfuscation --- */
.email-protect {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}