/* =========================================
   HEADER
========================================= */

.site-header {
    background: rgba(247, 246, 243, 0.9);
    border-bottom: 1px solid rgba(222, 219, 225, 0.8);
    backdrop-filter: blur(18px);
    position: sticky;
    top: 0;
    z-index: 50;
  }
  
  .header-inner {
    align-items: center;
    display: flex;
    justify-content: space-between;
    min-height: 68px;
  }
  
  .brand {
    display: inline-flex;
    align-items: center;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.28em;
  }
  
  .brand-logo {
    display: block;
    width: 112px;
    height: auto;
  }
  
  .main-navigation {
    align-items: center;
    display: flex;
    gap: 2.25rem;
  }
  
  .main-navigation > a:not(.button) {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
  }
  
  .main-navigation > a:not(.button):hover {
    color: var(--color-purple);
  }
  
  .nav-button {
    min-height: 46px;
  }
  
  .nav-button span {
    color: #bea4f2;
  }
  
  .menu-button {
    display: block;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--color-text);
    font-size: 0;
    position: relative;
  }
  
  /* =========================================
     HERO
  ========================================= */
  
  .hero-link {
    color: var(--color-text);
    display: inline-flex;
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-top: 4px;
    transition:
      color var(--transition-fast),
      transform var(--transition-fast);
  }
  
  .hero-link:hover {
    color: var(--color-purple);
    transform: translateX(3px);
  }

  .hero {
    overflow: hidden;
  }
  
  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(500px, 1.08fr);
    min-height: calc(100vh - 78px);
    padding-right: 0;
  }
  
  .hero-copy {
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-bottom: var(--space-7);
    padding-right: clamp(2.5rem, 6vw, 7rem);
    padding-top: var(--space-7);
  }
  
  .hero-copy h1 {
    font-size: var(--font-size-heading-md);
    font-weight: 500;
    letter-spacing: -0.06em;
    line-height: 0.98;
    max-width: 760px;
  }
  
  .hero-copy h1 span {
    display: block;
  }
  
  .hero-line {
    background: var(--color-purple);
    height: 2px;
    margin: var(--space-4) 0 var(--space-3);
    width: 44px;
  }
  
  .hero-copy > p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-md);
    margin-bottom: var(--space-5);
  }
  
  .hero-copy .button span {
    color: #bea4f2;
  }
  
  /* =========================================
   HERO VISUAL — YANLAI
========================================= */

.hero-visual {
  align-items: center;
  background:
    linear-gradient(
      145deg,
      #ebe8e3 0%,
      #f7f5f1 58%,
      #e9e2f2 100%
    );
  display: flex;
  min-height: 680px;
  overflow: hidden;
  padding:
    clamp(3rem, 6vw, 7rem)
    clamp(2rem, 4vw, 5rem);
  position: relative;
}

.purple-light {
  background:
    radial-gradient(
      circle,
      rgba(75, 37, 143, 0.28) 0%,
      rgba(75, 37, 143, 0.1) 40%,
      transparent 72%
    );
  height: 540px;
  position: absolute;
  right: -180px;
  top: -180px;
  width: 540px;
}

/* =========================================
   YANLAI HERO PANEL
========================================= */

.yanlai-panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(75, 37, 143, 0.14);
  border-radius: var(--radius-lg);
  box-shadow:
    0 30px 80px rgba(28, 20, 40, 0.1),
    0 20px 60px rgba(75, 37, 143, 0.08);
  overflow: hidden;
  position: relative;
  width: min(100%, 760px);
  z-index: 2;
}

.panel-header {
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  padding: 22px 26px;
}

.panel-brand {
  align-items: center;
  display: flex;
  gap: 10px;
}

.panel-brand strong {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
}

.panel-dot {
  background: var(--color-purple);
  border-radius: 50%;
  box-shadow: 0 0 0 5px var(--color-purple-light);
  display: inline-block;
  height: 7px;
  width: 7px;
}

.panel-header small {
  color: var(--color-text-secondary);
  font-size: 0.7rem;
}

.panel-message {
  padding:
    clamp(3.5rem, 7vw, 6.5rem)
    clamp(2rem, 4vw, 4rem);
}

.panel-message p {
  color: var(--color-purple);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.panel-message h2 {
  font-size: clamp(2.35rem, 4vw, 4.25rem);
  font-weight: 500;
  letter-spacing: -0.058em;
  line-height: 0.96;
}

.panel-message h2 span {
  color: var(--color-text-secondary);
  display: block;
}

.panel-services {
  border-top: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.panel-services article {
  display: flex;
  flex-direction: column;
  min-height: 180px;
  padding: var(--space-3);
}

.panel-services article + article {
  border-left: 1px solid var(--color-border);
}

.panel-services article > span,
.panel-product span {
  color: var(--color-purple);
  font-size: var(--font-size-xs);
  font-weight: 700;
}

.panel-services strong {
  font-size: var(--font-size-lg);
  font-weight: 500;
  margin-top: auto;
}

.panel-services small {
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-top: var(--space-1);
  max-width: 230px;
}

.panel-product {
  align-items: center;
  background: var(--color-text);
  color: white;
  display: flex;
  justify-content: space-between;
  padding: 24px 26px;
}

.panel-product div {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.panel-product span {
  color: #bca0f2;
}

.panel-product strong {
  font-size: var(--font-size-md);
  font-weight: 500;
}

.panel-product > small {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-xs);
}
  /* =========================================
   SERVICES
========================================= */

.services {
    padding:
      var(--space-8)
      0;
  }
  
  .services-heading {
    margin-bottom: var(--space-6);
    max-width: 820px;
  }
  
  .services-heading h2 {
    font-size: var(--font-size-heading-sm);
    font-weight: 500;
    letter-spacing: -0.05em;
    line-height: 1;
    margin-top: var(--space-2);
  }
  
  .services-heading h2 span {
    display: block;
  }
  
  .services-grid {
    display: grid;
    gap: var(--space-3);
    grid-template-columns: repeat(3, 1fr);
  }
  
  .service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    min-height: 360px;
    padding: var(--space-4);
    transition:
      border-color var(--transition-normal),
      box-shadow var(--transition-normal),
      transform var(--transition-normal);
  }
  
  .service-card:hover {
    border-color: rgba(75, 37, 143, 0.4);
    box-shadow: var(--shadow-card);
    transform: translateY(-6px);
  }
  
  .service-icon {
    align-items: center;
    border: 1px solid var(--color-purple-light);
    border-radius: var(--radius-sm);
    color: var(--color-purple);
    display: inline-flex;
    font-size: 1.25rem;
    height: 48px;
    justify-content: center;
    width: 48px;
  }
  
  .service-card h3 {
    font-size: 1.55rem;
    font-weight: 500;
    letter-spacing: -0.035em;
    margin-top: var(--space-5);
  }
  
  .service-card p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    margin-top: var(--space-2);
    max-width: 320px;
  }
  
  .service-card a {
    align-items: center;
    color: var(--color-text);
    display: inline-flex;
    font-size: var(--font-size-sm);
    gap: var(--space-1);
    margin-top: auto;
    transition:
      color var(--transition-fast),
      gap var(--transition-fast);
  }
  
  .service-card a span {
    color: var(--color-purple);
  }
  
  .service-card a:hover {
    color: var(--color-purple);
    gap: var(--space-2);
  }
/* =========================================
   WORKSHOP
========================================= */

.workshop {
  background: var(--color-background);
  color: var(--color-text);
  padding: var(--space-8) 0;
}

.workshop-grid {
  align-items: center;
  display: grid;
  gap: var(--space-7);
  grid-template-columns: 0.7fr 1.3fr;
}

.workshop-copy {
  max-width: 470px;
}

.workshop-copy .eyebrow {
  color: var(--color-purple);
}

.workshop-copy h2 {
  font-size: clamp(2.6rem, 10vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.98;
  margin-top: var(--space-3);
}

.workshop-copy h2 span {
  color: var(--color-text-secondary);
  display: block;
  margin-top: 10px;
}

.workshop-copy > p {
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.7;
  margin-top: var(--space-4);
  max-width: 450px;
}

.workshop-link {
  color: var(--color-text);
  display: inline-flex;
  font-size: var(--font-size-sm);
  font-weight: 700;
  margin-top: var(--space-4);
  transition:
    color var(--transition-fast),
    transform var(--transition-fast);
}

.workshop-link:hover {
  color: var(--color-purple);
  transform: translateX(3px);
}

.workshop-preview {
  min-width: 100%;
  overflow: hidden;
  position: relative;
}

.workshop-image {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  display: block;
  height: auto;
  width: 100%;
}
/* =========================================
   ABOUT
========================================= */

.about {
  background: #f0ede7;
  padding: var(--space-8) 0;
}
  
  .about-grid {
    align-items: start;
    display: grid;
    gap: var(--space-7);
    grid-template-columns: 1.1fr 0.9fr;
  }
  
  .about-heading {
    max-width: 760px;
  }
  
  .about-heading h2 {
    font-size: clamp(2.8rem, 5vw, 5.5rem);
    font-weight: 500;
    letter-spacing: -0.06em;
    line-height: 0.95;
    margin-top: var(--space-2);
  }
  
  .about-heading h2 span {
    display: block;
  }
  
  .about-copy {
    padding-top: var(--space-5);
  }
  
  .about-copy > p {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.75;
  }
  
  .about-copy > p + p {
    margin-top: var(--space-3);
  }
  
  .about-principles {
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-5);
    padding-top: var(--space-4);
  }
  
  .about-principles span {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    color: var(--color-text);
    font-size: var(--font-size-sm);
    padding: 10px 16px;
  }
/* =========================================
   CONTACT
========================================= */

.contact {
  background: #f0ede7;
  padding: 0 0 var(--space-6);
}
  
  .contact-card {
    align-items: end;
    background: var(--color-purple);
    border-radius: var(--radius-lg);
    color: white;
    display: grid;
    gap: var(--space-6);
    grid-template-columns: 1.2fr 0.8fr;
    overflow: hidden;
    padding: clamp(36px, 6vw, 70px);
    position: relative;
  }
  
  .contact-card::after {
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    content: "";
    height: 420px;
    position: absolute;
    right: -160px;
    top: -210px;
    width: 420px;
  }
  
  .contact-copy,
  .contact-action {
    position: relative;
    z-index: 1;
  }
  
  .contact-copy .eyebrow {
    color: rgba(255, 255, 255, 0.65);
  }
  
  .contact-copy h2 {
    font-size: clamp(3rem, 6vw, 6.5rem);
    font-weight: 500;
    letter-spacing: -0.065em;
    line-height: 0.9;
    margin-top: var(--space-2);
  }
  
  .contact-copy h2 span {
    color: rgba(255, 255, 255, 0.48);
    display: block;
  }
  
  .contact-copy > p {
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.7;
    margin-top: var(--space-4);
    max-width: 560px;
  }
  
  .contact-action {
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    justify-self: end;
  }
  
  .contact-action .button-primary {
    background: white;
    border-color: white;
    color: var(--color-text);
  }
  
  .contact-action .button-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
  }
  
  .contact-action small {
    color: rgba(255, 255, 255, 0.58);
    margin-top: var(--space-2);
  }

  /* =========================================
   FOOTER
========================================= */

.site-footer {
  background: #f0ede7;
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0;
}
  
  .footer-content {
    align-items: start;
    display: grid;
    gap: var(--space-5);
    grid-template-columns: 1.2fr 0.8fr 1fr;
  }
  
  .footer-logo {
    display: block;
    height: auto;
    width: 112px;
  }
  
  .footer-brand p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-top: var(--space-2);
    max-width: 280px;
  }
  
  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  
  .footer-links a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
  }
  
  .footer-links a:hover {
    color: var(--color-purple);
  }
  
  .footer-contact {
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    justify-self: end;
  }
  
  .footer-contact > a {
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: color var(--transition-fast);
  }
  
  .footer-contact > a:hover {
    color: var(--color-purple);
  }
  
  .footer-contact small {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    margin-top: var(--space-3);
  }

  /* =========================================
     RESPONSIVE
  ========================================= */
  
  @media (max-width: 900px) {
    /* HEADER / HERO */
  
    .services {
      padding: 72px 0;
    }
    
    .workshop {
      padding: 72px 0;
    }
    
    .about {
      padding: 72px 0;
    }
    
    .contact {
      padding-bottom: 56px;
    }

    .brand-logo {
      width: 104px;
    }

    .hero {
      padding: 54px 0 44px;
    }
  
    .hero-grid {
      min-height: auto;
      display: flex;
      align-items: center;
    }
  
    .hero-copy {
      width: 100%;
      min-width: 0%;
      max-width: 100%;
      padding: 0;
    }
  
    .hero-copy h1 {
      max-width: 650px;
      font-size: clamp(3rem, 10vw, 4.8rem);
      line-height: 0.96;
      letter-spacing: -0.055em;
    }
  
    .hero-copy p {
      max-width: 540px;
      margin-top: 18px;
      font-size: 17px;
      line-height: 1.65;
    }
  
    /* SERVICES */
  
    .services-grid {
      display: flex;
      gap: 16px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      scroll-behavior: smooth;
      padding-bottom: 14px;
      scrollbar-width: none;
    }
    
    .services-grid::-webkit-scrollbar {
      display: none;
    }
  
    .service-card {
      flex: 0 0 88%;
      min-height: 320px;
      padding: 28px 24px;
      background: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: 18px;
      box-shadow: 0 10px 30px rgba(24, 24, 27, 0.05);
      scroll-snap-align: center;
      position: relative;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 24px;
      right: 24px;
      height: 2px;
      background: var(--color-purple);
      border-radius: 999px;
      opacity: 0.75;
    }
  
    .service-card + .service-card {
      border-top: 1px solid var(--color-border);
    }
  
    /* WORKSHOP */
  
    .workshop-grid {
      grid-template-columns: 1fr;
      gap: 36px;
    }
  
    .workshop-copy {
      max-width: 100%;
    }
  
    /* ABOUT */
  
    .about-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }
  
    .about-copy {
      max-width: 680px;
      padding-top: 0;
    }
  
    /* CONTACT */
  
    .contact-card {
      align-items: start;
      grid-template-columns: 1fr;
      border-radius: var(--radius-md);
    }
  
    .contact-action {
      justify-self: start;
    }
  
    /* FOOTER */
  
    .footer-content {
      grid-template-columns: 1fr 1fr;
    }
  
    .footer-contact {
      justify-self: start;
    }

    .main-navigation {
      display: none;
    }

    .main-navigation.is-open {
      display: flex;
      position: absolute;
      top: 64px;
      left: 0;
      right: 0;
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      padding: 12px var(--page-padding) 24px;
      background: var(--color-background);
      border-bottom: 1px solid var(--color-border);
      box-sizing: border-box;
      box-shadow: 0 18px 35px rgba(22, 21, 24, 0.08);
      min-height: calc(100vh - 64px);
    }
    
    .main-navigation.is-open > a:not(.button) {
      padding: 17px 0;
      border-bottom: 1px solid var(--color-border);
      font-size: 15px;
    }
    
    .main-navigation.is-open .nav-button {
      margin-top: 18px;
      width: 100%;
    }
    
    .menu-button::before,
    .menu-button::after {
      content: "";
      position: absolute;
      left: 10px;
      right: 10px;
      height: 2px;
      background: var(--color-text);
      transition: transform 180ms ease, top 180ms ease;
    }
    
    .menu-button::before {
      top: 15px;
    }
    
    .menu-button::after {
      top: 27px;
    }

    @media (max-width: 600px) {
      .hero {
        padding: 38px 0 42px;
      }
    
      .hero-copy h1 {
        font-size: clamp(2.9rem, 13vw, 4rem);
      }

      .hero-copy > p {
        width: 100%;
        max-width: 330px;
      }
    
      .services,
      .about {
        padding: 64px 0;
      }
    
      .services-heading {
        margin-bottom: 36px;
      }

      .workshop {
        padding: 68px 0;
      }
      
      .workshop-grid {
        gap: 34px;
      }
      
      .workshop-copy h2 {
        font-size: clamp(2.25rem, 9.5vw, 3.2rem);
        line-height: 0.98;
      }
      
      .workshop-copy h2 span {
        margin-top: 12px;
      }
      
      .workshop-copy > p {
        font-size: 16px;
        line-height: 1.65;
      }
      
      .workshop-link {
        margin-top: 24px;
      }
    
      .footer-content {
        grid-template-columns: 1fr;
        gap: 36px;
      }
    }

    .reveal {
      opacity: 0;
      transform: translateY(22px);
      transition:
        opacity 650ms ease,
        transform 650ms ease;
    }
    
    .reveal.is-visible {
      opacity: 1;
      transform: translateY(0);
    }
    
    .reveal-delay-1 {
      transition-delay: 100ms;
    }
    
    .reveal-delay-2 {
      transition-delay: 200ms;
    }
    
    .reveal-left {
      opacity: 0;
      transform: translateX(-28px);
      transition:
        opacity 700ms ease,
        transform 700ms ease;
    }
    
    .reveal-right {
      opacity: 0;
      transform: translateX(28px);
      transition:
        opacity 700ms ease,
        transform 700ms ease;
    }
    
    .reveal-left.is-visible,
    .reveal-right.is-visible {
      opacity: 1;
      transform: translateX(0);
    }

    .services-heading {
      margin-bottom: 28px;
    }
    
    .services-heading h2 {
      font-size: clamp(2.2rem, 10vw, 3.3rem);
      line-height: 1;
    }
    
    .service-card h3 {
      font-size: 1.55rem;
      margin-bottom: 12px;
    }
    
    .service-card p {
      max-width: 340px;
      margin-bottom: 22px;
    }
    
    .service-card > a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
  }
  @media (max-width: 600px) {
    .services {
      overflow: hidden;
    }
  
    .services-grid {
      display: flex !important;
      flex-direction: row !important;
      flex-wrap: nowrap !important;
      gap: 10px;
      overflow-x: auto;
      overflow-y: hidden;
      scroll-snap-type: x mandatory;
      scroll-behavior: smooth;
      -webkit-overflow-scrolling: touch;
      scroll-padding-left: 0;
      padding: 4px 20px 20px 0;
      scrollbar-width: none;
    }
  
    .services-grid::-webkit-scrollbar {
      display: none;
    }
  
    .service-card {
      flex: 0 0 94% !important;
      width: 94% !important;
      min-width: 94% !important;
      min-height: 300px;
      padding: 28px 24px;
      background: #ffffff;
      border: 1px solid var(--color-border) !important;
      border-radius: 18px;
      box-shadow: 0 12px 30px rgba(24, 24, 27, 0.06);
      scroll-snap-align: center;
      scroll-snap-stop: always;
      position: relative;
    }
  
    .service-card + .service-card {
      border-top: 1px solid var(--color-border) !important;
    }
  
    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 24px;
      width: 52px;
      height: 2px;
      background: var(--color-purple);
      border-radius: 999px;
    }
  
    .service-icon {
      margin-bottom: 22px;
    }

    .services-dots {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 8px;
      margin-top: 4px;
    }
    
    .services-dots button {
      width: 6px;
      height: 6px;
      padding: 0;
      border: 0;
      border-radius: 50%;
      background: #d4d4d8;
      cursor: pointer;
      transition:
        background 180ms ease,
        transform 180ms ease;
    }
    
    .services-dots button.active {
      background: var(--color-purple);
      transform: scale(1.25);
    }

    .workshop-preview {
      width: 100%;
      margin-top: 6px;
      overflow: visible;
    }
    
    .workshop-image {
      max-width: none;
      border-radius: 14px;
      box-shadow: 0 20px 50px rgba(24, 24, 27, 0.12);
    }
  }
  /* =========================================
   BRAND INTRO ANIMATION
========================================= */

.brand-intro {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  overflow: hidden;
}

.brand-intro-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.brand-intro-trail {
  fill: none;
  stroke: var(--color-purple);
  stroke-width: 0.18;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0;
}

.brand-intro-spark {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-purple);
  box-shadow:
    0 0 8px rgba(109, 40, 217, 0.75),
    0 0 18px rgba(109, 40, 217, 0.45);
  opacity: 0;
  transform: translate(-50%, -50%);
}

@media (max-width: 900px), (prefers-reduced-motion: reduce) {
  .brand-intro {
    display: none;
  }
}