:root {
  --midnight-slate: #2C313C;
  --muted-purple: #725A73;
  --cool-gray: #636B7A;
  --soft-rose: #D9A9AD;
  --off-white: #F2F2F2;
  --warm-cream: #F5F3EF;
  --washi-white: #FAF9F6;
  --terminal-blue: #002b36;
  --color-primary: var(--midnight-slate);
  --color-accent: var(--muted-purple);
  --color-text: var(--midnight-slate);
  --color-text-muted: var(--cool-gray);
  --color-cta: var(--soft-rose);
  --color-bg: var(--warm-cream);
  --color-bg-alt: var(--washi-white);
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-japanese: 'Noto Sans JP', sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --shadow-sm: 0 2px 4px rgba(44, 49, 60, 0.04);
  --shadow-md: 0 4px 12px rgba(44, 49, 60, 0.06);
  --shadow-lg: 0 8px 24px rgba(44, 49, 60, 0.08);
  --transition-fast: 200ms cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-base: 400ms cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-slow: 600ms cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg);
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='snowflake'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.6' numOctaves='3' stitchTiles='stitch'/%3E%3CfeComponentTransfer%3E%3CfeFuncR type='linear' slope='2' intercept='-0.5'/%3E%3CfeFuncG type='linear' slope='2' intercept='-0.5'/%3E%3CfeFuncB type='linear' slope='2' intercept='-0.5'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23snowflake)' opacity='0.5'/%3E%3C/svg%3E"),
    radial-gradient(circle at 50% 0%, #ffffff 0%, transparent 60%);
  background-size: 100px 100px, 100% 100%;
  background-repeat: repeat, no-repeat;
  background-blend-mode: overlay, normal;
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

#header-container {
  width: 100%;
  z-index: 1000;
}

#footer-container {
  margin-top: auto;
  width: 100%;
}

.texture-washi {
  position: relative;
}

.texture-washi::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.20;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  border-radius: inherit;
  z-index: 0;
}

.bg-tech-grid {
  background-image:
    linear-gradient(rgba(114, 90, 115, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(114, 90, 115, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}

.card {
  position: relative;
  border: 1px solid rgba(44, 49, 60, 0.08);
}

.card-tech::before,
.card-tech::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--color-accent);
  border-style: solid;
  transition: all var(--transition-base);
  opacity: 0.5;
}

.card-tech::before {
  top: 0;
  left: 0;
  border-width: 1.5px 0 0 1.5px;
  border-top-left-radius: 4px;
}

.card-tech::after {
  bottom: 0;
  right: 0;
  border-width: 0 1.5px 1.5px 0;
  border-bottom-right-radius: 4px;
}

.card-tech:hover::before,
.card-tech:hover::after {
  width: 100%;
  height: 100%;
  opacity: 0.1;
  border-radius: 6px;
}

.tech-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(114, 90, 115, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(114, 90, 115, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 80%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 80%);
  z-index: 0;
  pointer-events: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.25;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
}

h2 {
  font-size: clamp(1.625rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
  max-width: 60ch;
  margin-bottom: var(--space-md);
  margin-inline: auto;
}

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

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

.jp {
  font-family: var(--font-japanese);
  font-weight: 700;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-cta);
}

a:focus-visible {
  outline: 2px solid var(--color-cta);
  outline-offset: 3px;
  border-radius: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 1rem 2rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  transition: all var(--transition-base);
}

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

.btn-primary:hover {
  background-color: #c89a9e;
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: rgba(245, 243, 239, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-bg);
  backdrop-filter: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-cta);
  outline-offset: 3px;
}

.btn-full {
  width: 100%;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(245, 243, 239, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(44, 49, 60, 0.05);
  transform: translateZ(0);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-xl);
}

.nav-logo {
  height: 3.5rem;
  width: auto;
  transition: height var(--transition-base);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}

.nav-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
  position: relative;
}

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

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

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

.nav-link.active {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-primary);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-logo {
    height: 2.5rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid rgba(44, 49, 60, 0.08);
    padding: var(--space-md) 0;
  }

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

  .nav-links li {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: var(--space-md) var(--space-xl);
  }

  .nav-link::after {
    display: none;
  }
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-2xl) 0;
}

.section-sm {
  padding: var(--space-xl) 0;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 5rem;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
  filter: saturate(0.8);
}

.hero-content {
  max-width: 800px;
  position: relative;
}

.hero-logo {
  width: 380px;
  max-width: 85%;
  height: auto;
  margin-bottom: var(--space-xl);
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  letter-spacing: 0.03em;
}

.hero-tagline-jp {
  font-family: var(--font-japanese);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-accent);
  margin-bottom: var(--space-2xl);
  letter-spacing: 0.1em;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.card {
  background-color: var(--color-bg-alt);
  border-radius: 6px;
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid rgba(44, 49, 60, 0.04);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

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

.footer {
  background-color: var(--color-primary);
  color: rgba(245, 243, 239, 0.85);
  padding: var(--space-2xl) 0;
}

.footer a {
  color: var(--color-cta);
}

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

.footer-logo {
  height: 3.5rem;
  opacity: 0.9;
  margin-bottom: var(--space-xs);
}

.footer-text {
  font-size: 0.875rem;
  margin-bottom: 0;
}

.footer-legal {
  font-size: 0.75rem;
  opacity: 0.6;
  margin-top: var(--space-md);
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  border-top: 1px solid rgba(245, 243, 239, 0.1);
  padding-top: var(--space-md);
  width: 100%;
  max-width: 400px;
}

.footer-link {
  color: rgba(245, 243, 239, 0.85) !important;
  transition: opacity var(--transition-fast);
}

.footer-link:hover {
  opacity: 1;
  text-decoration: underline;
}

.divider {
  width: 60px;
  height: 1px;
  background-color: var(--color-accent);
  margin: var(--space-lg) auto;
  opacity: 0.5;
}

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

.mb-0 {
  margin-bottom: 0;
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

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

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

.mb-2xl {
  margin-bottom: var(--space-2xl);
}

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

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

.carousel-track-container {
  overflow: hidden;
  position: relative;
  width: 100%;
}

.carousel-track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  gap: var(--space-md);
  touch-action: pan-y;
}

.carousel-slide {
  flex: 0 0 26%;
  max-height: 70vh;
  position: relative;
  overflow: hidden;
  z-index: 200;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-base);
  backdrop-filter: blur(4px);
}

.carousel-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--color-cta);
}

.carousel-btn.prev {
  left: 0;
}

.carousel-btn.next {
  right: 0;
}

@media (max-width: 768px) {
  .carousel-slide {
    flex: 0 0 42%;
  }
}

.texture-tech-strong {
  position: relative;
  overflow: hidden;
}

.texture-tech-strong::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.15;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  z-index: 1;
}

.texture-tech-strong>* {
  position: relative;
  z-index: 2;
}

@keyframes pulse {
  0% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.1);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.section-terminal-bg {
  background-image: url('../assets/zen_tech_bg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.section-terminal-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(2px);
  z-index: 0;
}

.vision-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .vision-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: var(--space-3xl);
  }

  .vision-card.staggered {
    margin-top: var(--space-4xl);
  }
}

.vision-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: var(--space-2xl);
  border-radius: 4px;
  border: 1px solid rgba(44, 49, 60, 0.05);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.vision-card:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.vision-card-header {
  color: var(--color-accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-md);
  font-weight: 600;
}

.vision-card-content {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100vh;
    background: rgba(245, 243, 239, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-4xl) var(--space-xl);
    z-index: 1100;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    pointer-events: none;
  }

  .nav-links.open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-links li {
    text-align: center;
    margin-bottom: var(--space-xl);
  }

  .nav-link {
    font-size: 2rem;
    font-weight: 400;
    padding: var(--space-sm) 0;
  }

  .nav-toggle {
    z-index: 1200;
    position: relative;
  }
}