.site-header,
.hero-navbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem 4rem;
  background: transparent;
  box-sizing: border-box;
}

.nav-pill-bar {
  display: inline-flex;
  align-items: center;
  gap: 1.15rem;
  padding: 0.35rem 0.5rem 0.35rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-full);
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.3), 0 8px 32px rgba(0, 0, 0, 0.4);
  transition: background-color 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-pill-bar:hover {
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.4), 0 10px 36px rgba(0, 0, 0, 0.5);
}

.nav-brand-wrap {
  display: inline-flex;
  align-items: center;
}

.nav-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #ffffff;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.nav-brand-link:hover {
  opacity: 0.88;
}

.nav-brand-logo {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  object-fit: cover;
  display: block;
}

.nav-brand-text {
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: #ffffff;
  transition: color 0.5s ease;
}

.nav-pill-divider {
  width: 1px;
  height: 18px;
  background: rgba(255, 255, 255, 0.2);
  margin: 0 0.15rem;
  transition: background-color 0.5s ease;
}

.nav-center-menu {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.hero-nav-link {
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  font-size: 0.825rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color 0.3s ease;
  white-space: nowrap;
}

.hero-nav-link:hover {
  color: #ffffff;
}

.nav-theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem 0.35rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.3s ease;
}

.nav-theme-toggle:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.25);
}

.theme-toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.45);
  transition: all 0.3s ease;
}

.theme-toggle-icon.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.28);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.nav-right-actions,
.nav-right-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  vertical-align: middle;
}

.nav-btn-github,
.nav-btn-started {
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  box-sizing: border-box;
  font-size: 0.775rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-btn-github {
  gap: 0.4rem;
  padding: 0 0.85rem;
  color: #ffffff;
  background: #000000;
  border: 1px solid transparent;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.nav-btn-github:hover {
  background: #18181b;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
  transform: translateY(-1px);
}

.nav-btn-started {
  padding: 0 0.95rem;
  letter-spacing: 0.01em;
  color: #000000;
  background: #ffffff;
  border: 1px solid #ffffff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.nav-btn-started:hover {
  background: #f4f4f5;
  border-color: #f4f4f5;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
  transform: translateY(-1px);
}

.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 720px;
  display: flex;
  align-items: center;
  background-color: #000000;
  overflow: hidden;
  box-sizing: border-box;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(0, 0, 0, 0.78) 0%, rgba(0, 0, 0, 0.25) 40%, rgba(0, 0, 0, 0) 65%),
    url('../images/hero-custom-bg.jpg');
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  opacity: 1;
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.65) 0%, rgba(255, 255, 255, 0.18) 38%, rgba(255, 255, 255, 0) 58%),
    url('../images/hero-light-bg.jpg');
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  pointer-events: none;
}

[data-theme="light"] .hero-section::before {
  opacity: 0;
}

[data-theme="light"] .hero-section::after {
  opacity: 1;
}

.hero-inner {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 4rem;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  height: 100%;
  box-sizing: border-box;
}

.hero-left-column {
  max-width: 580px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  text-align: left;
  z-index: 10;
  padding-top: 0;
  margin-top: auto;
  margin-bottom: auto;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  font-size: 0.725rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 1.35rem;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-main-title {
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  font-size: 3.75rem;
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: #ffffff;
  margin-bottom: 1.45rem;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.6);
  transition: color 0.5s ease, text-shadow 0.5s ease;
}

.hero-cta-wrapper {
  margin-bottom: 0;
}

.hero-glass-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.85rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(12px);
  color: #ffffff;
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.hero-glass-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
}

.hero-vertical-gap {
  height: 1.75rem;
}

.hero-subtext {
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  font-size: 0.825rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.65);
  max-width: 380px;
  margin-bottom: 1.15rem;
  transition: color 0.5s ease;
}

.hero-antislop-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.72);
  font-family: 'Plus Jakarta Sans', var(--font-sans);
  font-size: 0.775rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s ease;
}

.hero-antislop-link:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  transform: translateY(-1px);
}

.antislop-glow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #f59e0b;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.6);
  flex-shrink: 0;
  transition: background-color 0.5s ease;
}

.hero-antislop-link strong {
  color: #ffffff;
  font-weight: 600;
  transition: color 0.5s ease;
}

.antislop-arrow {
  color: rgba(255, 255, 255, 0.5);
  transition: transform 0.2s ease, color 0.3s ease;
}

.hero-antislop-link:hover .antislop-arrow {
  color: #ffffff;
  transform: translateX(2px);
}

[data-theme="light"] {
  background-color: #f8fafc;
}

[data-theme="light"] .nav-pill-bar {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 0.9), 0 8px 24px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .nav-pill-bar:hover {
  border-color: rgba(0, 0, 0, 0.18);
  box-shadow: inset 0 1px 1px 0 rgba(255, 255, 255, 1), 0 10px 28px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .nav-brand-text {
  color: #09090b;
}

[data-theme="light"] .nav-pill-divider {
  background: rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .hero-nav-link {
  color: #475569;
}

[data-theme="light"] .hero-nav-link:hover {
  color: #09090b;
}

[data-theme="light"] .nav-theme-toggle {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .theme-toggle-icon.active {
  color: #d97706;
  background: rgba(245, 158, 11, 0.2);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .nav-btn-github {
  background: #09090b;
  color: #ffffff;
  border-color: #09090b;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .nav-btn-github:hover {
  background: #27272a;
}

[data-theme="light"] .nav-btn-started {
  background: #ffffff;
  color: #09090b;
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .nav-btn-started:hover {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .hero-pill-badge {
  background: rgba(255, 255, 255, 0.65);
  border-color: rgba(0, 0, 0, 0.12);
  color: #334155;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .hero-main-title {
  color: #09090b;
  text-shadow: 0 2px 20px rgba(255, 255, 255, 0.9);
}

[data-theme="light"] .hero-glass-btn {
  background: #09090b;
  border-color: #09090b;
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .hero-glass-btn:hover {
  background: #27272a;
  border-color: #27272a;
  transform: translateY(-1px);
}

[data-theme="light"] .hero-subtext {
  color: #334155;
  font-weight: 500;
}

[data-theme="light"] .hero-antislop-link {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(0, 0, 0, 0.12);
  color: #334155;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .hero-antislop-link strong {
  color: #09090b;
}

[data-theme="light"] .hero-antislop-link:hover {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.22);
  color: #09090b;
}

[data-theme="light"] .antislop-arrow {
  color: #64748b;
}
/* Accessibility: honour the OS "reduce motion" setting. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}