:root {
  --orange: #e8622c;
  --orange-dark: #d1551f;
  --orange-band: #ee6b37;
  --dark: #1a1a1a;
  --gray: #6b7280;
  --gray-light: #e6e6e6;
  --gray-lighter: #f2f2f2;
  --white: #ffffff;
  --radius: 12px;
  --radius-lg: 16px;
  --max-width: 1200px;
  --font: 'Manrope', 'Inter', system-ui, -apple-system, sans-serif;
  --transition: 0.2s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--dark);
  line-height: 1.6;
  background: var(--white);
}

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

.container--narrow {
  max-width: 800px;
}

.container--wide {
  max-width: 1300px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--orange);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--orange-dark);
}

.btn-outline {
  background-color: transparent;
  color: var(--dark);
  border: 1.5px solid #d1d5db;
}

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

.btn-dark-pill {
  background-color: var(--dark);
  color: var(--white);
  border-radius: 999px;
}

.btn-dark-pill:hover {
  background-color: #000000;
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 40px;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-link img {
  height: 48px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text .brand {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 1px;
}

.logo-text .brand span {
  color: var(--orange);
}

.logo-text .tagline {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--gray);
}

.main-nav {
  display: flex;
  gap: 40px;
}

.main-nav a {
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.main-nav a.active {
  color: var(--orange);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--dark);
  margin: 5px 0;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hero */
.hero {
  padding: 50px 40px 80px;
}

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

.hero h1 {
  font-size: 44px;
  line-height: 1.15;
  font-weight: 400;
  margin: 0 0 24px;
}

.hero h1 .accent {
  color: var(--orange);
}

.hero h1 .bold {
  font-weight: 800;
}

.hero p.lead {
  color: var(--gray);
  font-size: 18px;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid #eee;
}

.hero-image img {
  width: 100%;
}

/* centered page hero (Services / Silicon IPs) */
.page-hero {
  text-align: center;
  padding: 70px 40px 40px;
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  margin: 0 0 20px;
}

.page-hero p {
  color: var(--gray);
  font-size: 22px;
  max-width: 700px;
  margin: 0 auto 32px;
}

/* Orange band */
.band {
  background-color: var(--orange-band);
  color: var(--white);
  text-align: center;
  padding: 80px 40px;
}

.band h2 {
  font-size: 32px;
  margin: 0 0 20px;
}

.band p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 22px;
  opacity: 0.95;
}

/* Service sections (alternating) */
.service {
  position: relative;
  padding: 80px 40px;
  background: transparent;
}

.service::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('assets/images/circuit.png');
  background-repeat: repeat;
  background-size: 400px 400px;
  opacity: 0.05;
  pointer-events: none;
}

.service > * {
  position: relative;
  z-index: 1;
}

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

.service.reverse .container {
  direction: rtl;
}

.service.reverse .container > * {
  direction: ltr;
}

.service img {
  border-radius: var(--radius-lg);
}

.service h2 {
  font-size: 32px;
  margin: 0 0 20px;
}

.service p {
  color: var(--gray);
  font-size: 20px;
  margin-bottom: 28px;
}

/* Partners */
.partners {
  padding: 60px 40px;
  text-align: center;
}

.partners h2 {
  color: var(--gray);
  font-weight: 600;
  font-size: 32px;
  margin-bottom: 40px;
}

.partners-carousel {
  overflow: hidden;
  width: 100%;
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 60px, #000 calc(100% - 60px), transparent 100%);
  mask-image: linear-gradient(to right, transparent 0, #000 60px, #000 calc(100% - 60px), transparent 100%);
}

.partners-track {
  display: flex;
  align-items: center;
  gap: 70px;
  width: max-content;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
}

.partners-track.dragging {
  cursor: grabbing;
}

.partner-logo {
  height: 64px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  flex-shrink: 0;
  pointer-events: none;
}

/* Contact */
.contact {
  padding: 70px 40px;
}

.contact .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact h2 {
  font-size: 32px;
  margin: 0 0 20px;
}

.contact address {
  font-style: normal;
  color: var(--gray);
  margin-bottom: 20px;
  line-height: 1.8;
}

.contact .company-name {
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.contact .map-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: none;
  width: 100%;
  min-height: 400px;
}

/* Footer */
.site-footer {
  padding: 30px 40px;
  border-top: 1px solid #eee;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 16px;
}

.site-footer p {
  margin: 0;
  font-size: 15px;
}

.site-footer strong {
  font-weight: 700;
}

.social-icons {
  display: flex;
  gap: 16px;
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--gray);
  transition: color var(--transition);
}

.social-icons a:hover {
  color: var(--dark);
}

.social-icons svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Services page: tab bar */
.tab-bar {
  display: flex;
  background-color: var(--gray-light);
  border-radius: 999px;
  padding: 6px;
  max-width: 900px;
  margin: 0 auto 50px;
}

.tab-btn {
  flex: 1;
  padding: 16px 20px;
  border: none;
  background: transparent;
  border-radius: 999px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.5px;
  cursor: pointer;
  color: var(--dark);
  transition: background-color var(--transition), color var(--transition);
}

.tab-btn.active {
  background-color: var(--orange);
  color: var(--white);
}

.tab-panel {
  display: none;
  background-color: var(--gray-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 1100px;
  margin: 0 auto 40px;
}

.tab-panel.active {
  display: block;
}

.tab-panel-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
}

.tab-panel-header img {
  width: 64px;
  border-radius: 12px;
}

.tab-panel-header h2 {
  margin: 0;
  font-size: 28px;
}

.tab-columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 30px;
}

.tab-columns--center {
  grid-template-columns: repeat(3, minmax(0, 300px));
  justify-content: center;
}

.tab-columns > div {
  display: grid;
  grid-template-columns: 32px 1fr;
  grid-template-rows: subgrid;
  grid-row: span 2;
  column-gap: 8px;
  align-items: start;
}

.tab-columns > div img {
  grid-column: 1;
  grid-row: 1;
  width: 32px;
  height: 32px;
  object-fit: contain;
  margin-top: 0px;
}

.tab-columns h4 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
  margin-top: 3px;
}

.tab-columns ul {
  grid-column: 1 / -1;
  grid-row: 2;
  margin: 14px 0 0;
  padding-left: 40px;
  color: var(--gray);
  font-size: 18px;
  margin-top: -12px;
}

.tab-columns li {
  margin-bottom: 0px;
}

/* Silicon IPs page */
.silicon-hero-image {
  padding: 0 40px 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.silicon-hero-image img {
  border-radius: var(--radius-lg);
  width: 100%;
}

.ip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px 70px;
  align-items: stretch;
}

.ip-card {
  background-color: var(--gray-lighter);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
}

.ip-card h3 {
  margin: 0 0 16px;
  font-size: 20px;
}

.ip-card ul {
  color: var(--gray);
  padding-left: 18px;
  margin: 0 0 28px;
  font-size: 18px;
  flex: 1;
}

.ip-card li {
  margin-bottom: 0px;
}

.ip-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  object-position: center top;
  border-radius: 20px;
  border: 6px solid var(--white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin-top: auto;
}

/* News & Events: card grid */
.event-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px 70px;
}

.event-card {
  display: block;
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid #eee;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: transform var(--transition), box-shadow var(--transition);
}

.event-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.09);
}

.event-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.event-card-body {
  padding: 20px;
}

.event-card-body h3 {
  font-size: 17px;
  line-height: 1.35;
  margin: 0 0 14px;
  color: var(--dark);
}

.event-card-meta {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.6;
}

/* News & Events: detail page */
.event-detail-header {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 40px 30px;
}

.event-tag-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.event-tag {
  background-color: var(--orange);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 6px 14px;
  border-radius: 999px;
  text-transform: uppercase;
}

.event-date {
  color: var(--gray);
  font-size: 14px;
}

.event-detail-header h1 {
  font-size: 36px;
  font-weight: 800;
  margin: 0 0 16px;
}

.event-location {
  color: var(--gray);
  font-size: 17px;
  margin: 0;
}

.event-hero-image {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px 50px;
}

.event-hero-image img {
  width: 100%;
  border-radius: var(--radius-lg);
}

.event-body {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 40px 30px;
  font-size: 17px;
}

.event-body p {
  margin: 0 0 22px;
  color: var(--gray);
  line-height: 1.8;
}

.event-body h2 {
  font-size: 22px;
  margin: 8px 0 16px;
}

.event-body img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin: 0 0 24px;
}

.event-back-link {
  display: inline-block;
  max-width: 800px;
  margin: 10px auto 70px;
  padding: 0 40px;
  width: 100%;
  box-sizing: border-box;
}

.event-back-link a {
  color: var(--orange);
  font-weight: 600;
}

.event-back-link a:hover {
  color: var(--orange-dark);
}

/* Responsive */
@media (max-width: 900px) {
  .hero .container,
  .service .container,
  .contact .container {
    grid-template-columns: 1fr;
  }

  .service.reverse .container {
    direction: ltr;
  }

  .service .container > *:first-child {
    order: 2;
  }

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

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

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

@media (max-width: 700px) {
  .site-header {
    padding: 20px;
    flex-wrap: wrap;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    gap: 0;
    padding: 10px 20px 20px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.08);
    z-index: 20;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
  }

  .nav-toggle {
    display: block;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 32px;
  }

  .band h2,
  .service h2,
  .contact h2 {
    font-size: 26px;
  }

  .service,
  .contact,
  .hero,
  .page-hero,
  .partners {
    padding-left: 20px;
    padding-right: 20px;
  }

  .container {
    padding: 0 20px;
  }

  .tab-bar {
    flex-direction: column;
    border-radius: var(--radius);
  }

  .tab-panel {
    padding: 30px 24px;
  }

  .tab-panel-header {
    flex-direction: column;
    text-align: center;
  }

  .tab-columns {
    grid-template-columns: 1fr;
  }

  .ip-grid {
    grid-template-columns: 1fr;
    padding: 0 20px 50px;
  }

  .event-grid {
    grid-template-columns: 1fr;
    padding: 0 20px 50px;
  }

  .event-detail-header,
  .event-hero-image,
  .event-body {
    padding-left: 20px;
    padding-right: 20px;
  }

  .event-back-link {
    padding: 0 20px;
  }

  .event-detail-header h1 {
    font-size: 28px;
  }

  .site-footer {
    justify-content: center;
    text-align: center;
  }
}