/* ==============================
   HEADER / NAVIGATION
   ============================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 var(--spacing-md);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header.scrolled::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim), transparent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--max-width);
  margin: 0 auto;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.header-logo-img {
  width: 36px;
  height: 36px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-link {
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--fs-tiny);
  font-weight: 700;
  letter-spacing: 1px;
  transition: all var(--transition-base);
  cursor: pointer;
  margin-right: var(--spacing-xs);
}

.lang-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ==============================
   HERO SECTION
   ============================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim), transparent);
  opacity: 0.1;
  height: 1px;
  width: 100%;
}

.hero-bg-line:nth-child(1) { top: 20%; width: 60%; left: -10%; transform: rotate(-5deg); }
.hero-bg-line:nth-child(2) { top: 45%; width: 80%; right: -20%; transform: rotate(3deg); }
.hero-bg-line:nth-child(3) { top: 70%; width: 50%; left: 10%; transform: rotate(-2deg); }

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 165, 52, 0.06), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-logo-mark {
  margin-bottom: var(--spacing-md);
}

.hero-logo-mark svg {
  width: 80px;
  height: 80px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  line-height: 1.1;
}

.hero-subheadline {
  font-size: var(--fs-subheading);
  font-weight: 300;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 2px;
}

.hero-description {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  max-width: 500px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-mockup {
  width: 280px;
  height: 560px;
  background: #000;
  border: 1px solid var(--color-border);
  border-radius: 36px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.hero-mockup-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 35px;
  display: block;
}

.hero-mockup::before {
  content: '';
  width: 120px;
  height: 4px;
  background: var(--color-border);
  border-radius: 4px;
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-mockup-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(212, 165, 52, 0.04), transparent 50%);
  pointer-events: none;
  z-index: 1;
}

/* ==============================
   FEATURED PRODUCTS
   ============================== */
.products-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.products-header .section-subtitle {
  margin: 0 auto;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.product-card {
  display: flex;
  flex-direction: column;
}

.product-card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.product-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(212, 165, 52, 0.15), rgba(212, 165, 52, 0.05));
  border: 1px solid rgba(212, 165, 52, 0.1);
}

.product-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}

.product-card-text {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
  flex: 1;
}

.product-card-highlights {
  margin-bottom: var(--spacing-md);
}

.product-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

/* ==============================
   ABOUT SECTION
   ============================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.about-text p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.about-visual {
  position: relative;
}

.about-logo-large {
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
  opacity: 0.8;
}

/* ==============================
   PHILOSOPHY SECTION
   ============================== */
.philosophy-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.philosophy-header .section-subtitle {
  margin: 0 auto;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.philosophy-card {
  text-align: center;
  padding: var(--spacing-md);
}

.philosophy-card-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(212, 165, 52, 0.1);
  color: var(--color-accent);
}

.philosophy-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.philosophy-card-text {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==============================
   CONTACT SECTION
   ============================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.contact-info p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  max-width: 450px;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.125rem;
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
  margin-bottom: var(--spacing-md);
}

.contact-email:hover {
  border-bottom-color: var(--color-accent);
}

.contact-social {
  margin-top: var(--spacing-md);
}

.contact-social-label {
  font-size: var(--fs-tiny);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-sm);
}

.contact-visual {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
}

.contact-card:hover {
  border-color: var(--color-accent-dim);
}

.contact-card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(212, 165, 52, 0.1);
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-card-text {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
}

.contact-card-text strong {
  display: block;
  color: var(--color-text);
  margin-bottom: 2px;
}

/* ==============================
   FOOTER
   ============================== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0 var(--spacing-md);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-brand-logo {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-sm);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.footer-brand-tagline {
  font-size: var(--fs-tiny);
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

.footer-heading {
  font-size: var(--fs-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-nav a {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-tiny);
  color: var(--color-text-muted);
}