/* Morph Frame for Product Thumbnail */
.morph-frame {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 48% 52% 68% 32% / 42% 58% 42% 58%;
  box-shadow: 0 15px 40px rgba(52, 57, 91, 0.25);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-radius 1s ease;
  z-index: 1;
}
.morph-frame:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 20px 50px rgba(52, 57, 91, 0.35);
  border-radius: 38% 62% 58% 42% / 52% 48% 52% 48%;
}
/*
  Shanghai MedFoil — Landing Page Styles
  Palette:
  --c-bg: #F3F5F6
  --c-mint: #D6E5E3
  --c-lav: #DCD6F7
  --c-peri: #A6B1E1
  --c-ink: #34395B
*/

:root {
  --c-bg: #F3F5F6;
  --c-mint: #D6E5E3;
  --c-lav: #DCD6F7;
  --c-peri: #A6B1E1;
  --c-ink: #34395B;
  --c-ink-70: color-mix(in oklab, var(--c-ink), white 30%);
  --c-ink-50: color-mix(in oklab, var(--c-ink), white 50%);
  --c-card: #ffffff;
  --c-shadow: 0 8px 24px rgba(52, 57, 91, 0.12);
  --radius: 16px;
  --radius-sm: 12px;
  --radius-lg: 22px;
  --container: 1200px;
}

/* Dark Mode */
body.dark-mode {
  --c-bg: #1a1d2e;
  --c-mint: #2a3d3a;
  --c-lav: #3a3550;
  --c-peri: #7b88c4;
  --c-ink: #e8eaf0;
  --c-ink-70: color-mix(in oklab, var(--c-ink), black 15%);
  --c-ink-50: color-mix(in oklab, var(--c-ink), black 25%);
  --c-card: #242736;
  --c-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

body.dark-mode .hero-bg {
  background: radial-gradient(1200px 600px at 10% 10%, rgba(166, 177, 225, 0.5), transparent 60%),
              radial-gradient(1200px 600px at 90% 20%, rgba(214, 229, 227, 0.4), transparent 60%),
              linear-gradient(180deg, #1a1d2e, #1a1d2e 40%, color-mix(in oklab, #A6B1E1, #1a1d2e 50%));
}

body.dark-mode .card.soft {
  background: linear-gradient(180deg, #242736, #242736 60%, #1a1d2e);
}

body.dark-mode .card.accent {
  background: linear-gradient(180deg, color-mix(in oklab, #3a3550, #242736 50%), #242736);
}

body.dark-mode .site-header.scrolled .container {
  background: rgba(123, 136, 196, 0.25);
}

body.dark-mode .contact {
  background: linear-gradient(180deg, #242736, #2a3d3a 220%);
}

body.dark-mode .site-footer {
  background: #1f2233;
}

body.dark-mode .btn.primary {
  background: var(--c-peri);
  color: #ffffff;
}

body.dark-mode .btn.primary:hover {
  background: color-mix(in oklab, var(--c-peri), white 15%);
}

body.dark-mode .btn.outline {
  border-color: var(--c-peri);
  color: var(--c-peri);
}

body.dark-mode .btn.outline:hover {
  background: var(--c-peri);
  color: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Manrope", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.65;
}

/*******************
  Layout
*******************/
.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}
.flex { display: flex; gap: 1rem; }
.between { justify-content: space-between; }
.align-center { align-items: center; }
.grid { display: grid; }
.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gap-lg { gap: 1.25rem; }
.gap-xl { gap: 1.75rem; }

.section { padding: 72px 0; position: relative; }
.section:first-of-type { padding-top: 40px; }
.section-header { margin-bottom: 32px; }
.lead { color: var(--c-ink-70); font-size: 1.1rem; max-width: 70ch; }
.small { font-size: .875rem; color: var(--c-ink-50); }

/*******************
  Header / Nav
*******************/
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: transparent;
  border: none;
  padding: 8px 0;
}
/* Container transforms into island on scroll */
.site-header .container {
  padding: 16px 20px;
  transition: margin .25s ease, background .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.site-header.scrolled .container {
  margin-top: 12px;
  background: rgba(166, 177, 225, 0.25);
  border-radius: 22px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1),
              inset 0 1px 0 rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(40px) saturate(200%) brightness(1.05);
  -webkit-backdrop-filter: blur(40px) saturate(200%) brightness(1.05);
  border: 0.5px solid rgba(255, 255, 255, 0.25);
  color: var(--c-ink);
}
.site-header.scrolled .nav-menu a { color: var(--c-ink); }
.site-header.scrolled .nav-menu a:hover { background: rgba(166,177,225,0.25); }
.logo {
  text-decoration: none; display: inline-block; line-height: 0; position: relative;
  width: 200px; height: 56px;
}
.logo img { 
  position: absolute;
  top: 0;
  left: 0;
  height: 56px; 
  width: 200px;
  object-fit: contain;
  object-position: left center;
}
.logo .logo-dark { opacity: 0; visibility: hidden; }
.logo .logo-light { opacity: 1; visibility: visible; }
body.dark-mode .logo .logo-light { opacity: 0; visibility: hidden; }
body.dark-mode .logo .logo-dark { opacity: 1; visibility: visible; }

.main-nav { position: relative; display: flex; align-items: center; gap: 1rem; }
.theme-toggle {
  background: var(--c-peri); border: 0; cursor: pointer;
  width: 44px; height: 44px; border-radius: 50%; 
  display: flex; align-items: center; justify-content: center;
  transition: background .25s ease, transform .2s ease, box-shadow .25s ease;
  color: #fff;
  box-shadow: 0 4px 12px rgba(166,177,225,0.3);
  margin-left: .5rem;
}
.theme-toggle:hover { 
  background: color-mix(in oklab, var(--c-peri), black 10%); 
  transform: scale(1.08); 
  box-shadow: 0 6px 16px rgba(166,177,225,0.4);
}
.theme-toggle svg { display: block; }
.theme-toggle .icon-moon { display: none; }
body.dark-mode .theme-toggle { background: #7b88c4; color: #1a1d2e; }
body.dark-mode .theme-toggle:hover { background: color-mix(in oklab, #7b88c4, white 15%); }
body.dark-mode .theme-toggle .icon-sun { display: none; }
body.dark-mode .theme-toggle .icon-moon { display: block; }
.nav-toggle { display: none; background: transparent; border: 0; font-size: 1.5rem; color: var(--c-ink); cursor: pointer; }
.nav-menu { display: flex; list-style: none; gap: 1rem; margin: 0; padding: 12px 0; }
.nav-menu a { text-decoration: none; color: var(--c-ink); padding: 10px 12px; border-radius: 10px; }
.nav-menu a:hover { background: var(--c-mint); }
body.dark-mode .nav-menu a:hover { background: color-mix(in oklab, #7b88c4, transparent 60%); }

/*******************
  Hero
*******************/
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  padding: 100px 0 60px;
  min-height: 600px;
  display: flex;
  align-items: center;
}
.hero-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  align-items: center;
}
.hero-content { max-width: 600px; }
.hero h1 { 
  font-family: 'Inter', 'Manrope', system-ui, sans-serif;
  font-size: clamp(2.25rem, 5vw, 3.5rem); 
  font-weight: 800;
  line-height: 1.15; 
  margin: 0 0 20px;
  background: linear-gradient(135deg, #34395B 0%, #A6B1E1 50%, #34395B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: gradientShift 4s ease infinite;
  letter-spacing: -0.02em;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}
body.dark-mode .hero h1 {
  background: linear-gradient(135deg, #e8eaf0 0%, #A6B1E1 50%, #e8eaf0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
}
.subtitle { color: var(--c-ink-70); font-size: 1.05rem; margin-bottom: 24px; line-height: 1.6; }
.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; }
.hero-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  max-width: 750px;
  width: 100%;
  z-index: 1;
}
.hero-image::before {
  content: '';
  position: absolute;
  inset: -16px;
  background: linear-gradient(135deg, var(--c-lav), var(--c-mint), var(--c-peri));
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  opacity: 0.5;
  z-index: 0;
  animation: morphFrame 8s ease-in-out infinite;
}
.hero-image::after {
  content: '';
  position: absolute;
  inset: -8px;
  background: linear-gradient(225deg, var(--c-peri), var(--c-lav));
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  opacity: 0.45;
  z-index: 0;
  animation: morphFrame 10s ease-in-out infinite reverse;
}
body.dark-mode .hero-image::before {
  background: linear-gradient(135deg, #C8D3FF, #B8F0E8, #E5D9FF);
  opacity: 0.3;
}
body.dark-mode .hero-image::after {
  background: linear-gradient(225deg, #E5D9FF, #C8D3FF);
  opacity: 0.25;
}
@keyframes morphFrame {
  0%, 100% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  25% {
    border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%;
  }
  50% {
    border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%;
  }
  75% {
    border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%;
  }
}
.hero-image img {
  position: relative;
  width: 100%;
  height: auto;
  display: block;
  border-radius: 48% 52% 68% 32% / 42% 58% 42% 58%;
  box-shadow: 0 25px 70px rgba(52, 57, 91, 0.35);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-radius 1s ease;
  z-index: 2;
}
.hero-image img:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 35px 90px rgba(52, 57, 91, 0.45);
  border-radius: 38% 62% 58% 42% / 52% 48% 52% 48%;
}
.hero-bg {
  position: absolute; inset: -10% -10% auto -10%; height: 120%; z-index: -1;
  background: radial-gradient(1200px 600px at 10% 10%, var(--c-lav), transparent 60%),
              radial-gradient(1200px 600px at 90% 20%, var(--c-mint), transparent 60%),
              linear-gradient(180deg, #fff0, #fff0 40%, color-mix(in oklab, var(--c-peri), white 70%));
}

/*******************
  Cards & Media
*******************/
.card {
  background: linear-gradient(180deg, color-mix(in oklab, var(--c-lav), white 70%), #fff);
  border: 1px solid color-mix(in oklab, var(--c-ink), transparent 90%);
  border-radius: var(--radius); padding: 24px; box-shadow: var(--c-shadow);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  cursor: pointer;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(52, 57, 91, 0.18);
  border-color: color-mix(in oklab, var(--c-peri), transparent 60%);
}
.card.soft { background: linear-gradient(180deg, color-mix(in oklab, var(--c-lav), white 85%), color-mix(in oklab, var(--c-lav), white 95%)); }
.card.accent { background: linear-gradient(180deg, color-mix(in oklab, var(--c-lav), white 70%), #fff); }
body.dark-mode .card {
  background: linear-gradient(180deg, color-mix(in oklab, #3a3550, #242736 50%), #242736);
}
body.dark-mode .card.soft {
  background: linear-gradient(180deg, color-mix(in oklab, #3a3550, #1a1d2e 60%), #1a1d2e);
}
body.dark-mode .card:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
  border-color: color-mix(in oklab, var(--c-peri), transparent 40%);
}

.product-group { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
.product-media { 
  position: relative;
  aspect-ratio: 4 / 3; 
  margin-bottom: 16px; 
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-media::before {
  content: '';
  position: absolute;
  inset: -8px;
  background: linear-gradient(135deg, var(--c-lav), var(--c-mint), var(--c-peri));
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  opacity: 0.4;
  z-index: 0;
  animation: morphFrame 8s ease-in-out infinite;
}
.product-media::after {
  content: '';
  position: absolute;
  inset: -4px;
  background: linear-gradient(225deg, var(--c-peri), var(--c-lav));
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  opacity: 0.35;
  z-index: 0;
  animation: morphFrame 10s ease-in-out infinite reverse;
}
body.dark-mode .product-media::before {
  background: linear-gradient(135deg, #C8D3FF, #B8F0E8, #E5D9FF);
  opacity: 0.3;
}
body.dark-mode .product-media::after {
  background: linear-gradient(225deg, #E5D9FF, #C8D3FF);
  opacity: 0.25;
}
.product-media img { 
  position: relative;
  width: 100%; 
  height: 100%; 
  object-fit: cover; 
  display: block;
  border-radius: 48% 52% 68% 32% / 42% 58% 42% 58%;
  box-shadow: 0 15px 40px rgba(52, 57, 91, 0.25);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-radius 1s ease;
  z-index: 1;
}
.product-media img:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 20px 50px rgba(52, 57, 91, 0.35);
  border-radius: 38% 62% 58% 42% / 52% 48% 52% 48%;
}
.product-media-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; aspect-ratio: auto; }
.product-media-grid img:first-child { grid-column: 1 / -1; }
.product-media-grid img { aspect-ratio: 4 / 3; }
.media-placeholder {
  height: 100%; display: grid; place-items: center; color: var(--c-ink-50);
  background: repeating-linear-gradient(135deg, #ffffff, #ffffff 10px, #f1f3f6 10px, #f1f3f6 20px);
}
.media-placeholder.gradient {
  background: radial-gradient(500px 320px at 20% 20%, var(--c-mint), transparent 60%),
              radial-gradient(500px 320px at 80% 30%, var(--c-lav), transparent 60%),
              linear-gradient(180deg, #ffffff, #f8f9fb);
}

.feature-list { padding-left: 1.1rem; }
.feature-list li { margin: .4rem 0; }
.feature-list.compact li { margin: .25rem 0; }

/*******************
  Quality
*******************/
.quality-grid .card h3 { margin-top: 0; }

/*******************
  Contact
*******************/
.contact { background: linear-gradient(180deg, #fff, var(--c-mint) 220%); }
.contact-grid { align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { margin: .5rem 0; }
.contact-list span { display: inline-block; min-width: 74px; color: var(--c-ink-50); }
.contact-list a { text-decoration: none; color: var(--c-ink); }
.contact-list a:hover { text-decoration: underline; }

.contact-form .form-group { display: grid; gap: .35rem; margin-bottom: .9rem; }
.contact-form input, .contact-form textarea {
  font: inherit; padding: .8rem 1rem; border-radius: 10px; border: 1px solid color-mix(in oklab, var(--c-ink), transparent 85%);
  background: #fff; outline: none; transition: box-shadow .2s ease, border-color .2s ease;
}
.contact-form input:focus, .contact-form textarea:focus {
  border-color: color-mix(in oklab, var(--c-peri), var(--c-ink) 10%);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--c-peri), white 85%);
}

/*******************
  Footer
*******************/
.site-footer { 
  padding: 56px 0 24px; 
  background: #fff; 
  border-top: 1px solid color-mix(in oklab, var(--c-ink), transparent 90%); 
}
.footer-content { 
  display: grid; 
  grid-template-columns: 2fr 1fr 1fr; 
  gap: 3rem; 
  margin-bottom: 40px; 
}
.footer-brand { max-width: 320px; }
.footer-tagline { 
  margin-top: 16px; 
  color: var(--c-ink-70); 
  font-size: .95rem; 
  line-height: 1.6; 
}
.footer-nav-title { 
  font-size: .875rem; 
  font-weight: 600; 
  text-transform: uppercase; 
  letter-spacing: 0.05em; 
  color: var(--c-ink); 
  margin: 0 0 12px; 
}
.footer-nav { 
  list-style: none; 
  padding: 0; 
  margin: 0; 
  display: flex; 
  flex-direction: column; 
  gap: .5rem; 
}
.footer-nav a { 
  color: var(--c-ink-70); 
  text-decoration: none; 
  font-size: .95rem; 
  transition: color .2s ease; 
}
.footer-nav a:hover { color: var(--c-peri); }
.footer-contact .small { margin: .35rem 0; }
.footer-contact a { 
  color: var(--c-ink-70); 
  text-decoration: none; 
  transition: color .2s ease; 
}
.footer-contact a:hover { color: var(--c-peri); }
.footer-bottom { 
  padding-top: 24px; 
  border-top: 1px solid color-mix(in oklab, var(--c-ink), transparent 92%); 
  text-align: center; 
}
.footer-bottom .small { margin: 0; }

/*******************
  Buttons
*******************/
.btn { display: inline-block; padding: .8rem 1.1rem; border-radius: 12px; text-decoration: none; font-weight: 600; border: 1px solid transparent; }
.btn.primary { background: var(--c-ink); color: #fff; }
.btn.primary:hover { background: color-mix(in oklab, var(--c-ink), black 8%); }
.btn.outline { border-color: var(--c-ink); color: var(--c-ink); background: transparent; }
.btn.outline:hover { background: var(--c-ink); color: #fff; }
.btn.full { width: 100%; }

/*******************
  Utilities
*******************/
hr.divider { border: none; height: 1px; background: color-mix(in oklab, var(--c-ink), transparent 88%); margin: 24px 0; }

/*******************
  Image Modal
*******************/
.image-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
}

.image-modal.active {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
}

.modal-dialog {
  position: relative;
  z-index: 10000;
  background: var(--c-card);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  max-width: 90%;
  max-height: 90vh;
  width: 800px;
  display: flex;
  flex-direction: column;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  justify-content: flex-end;
  padding: 16px 20px;
  border-bottom: 1px solid color-mix(in oklab, var(--c-ink), transparent 90%);
}

.modal-close {
  font-size: 32px;
  font-weight: 300;
  color: var(--c-ink);
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  width: 32px;
  height: 32px;
  transition: opacity 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  opacity: 0.6;
}

.modal-body {
  position: relative;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.modal-image {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: var(--radius);
  display: block;
}

.modal-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 28px;
  font-weight: 300;
  color: var(--c-ink);
  background: var(--c-card);
  border: 2px solid color-mix(in oklab, var(--c-ink), transparent 85%);
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.modal-nav:hover {
  background: var(--c-peri);
  color: #fff;
  border-color: var(--c-peri);
}

.modal-prev {
  left: 20px;
}

.modal-next {
  right: 20px;
}

@media (max-width: 720px) {
  .modal-dialog {
    max-width: 95%;
    width: 95%;
  }
  
  .modal-header {
    padding: 12px 16px;
  }
  
  .modal-close {
    font-size: 28px;
    width: 28px;
    height: 28px;
  }
  
  .modal-body {
    padding: 12px;
  }
  
  .modal-image {
    max-height: 60vh;
  }
  
  .modal-nav {
    font-size: 20px;
    padding: 6px 10px;
  }
  
  .modal-prev {
    left: 10px;
  }
  
  .modal-next {
    right: 10px;
  }
}

/*******************
  Responsive
*******************/
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-content { max-width: 100%; }
  .hero-image { order: -1; max-width: 600px; margin: 0 auto; }
  .product-group { grid-template-columns: 1fr; }
  .three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-content { grid-template-columns: 1fr 1fr; }
  .footer-brand { max-width: 100%; grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .hero { 
    padding: 80px 0 100px; 
    min-height: auto;
  }
  .hero-grid { gap: 30px; }
  .hero-image { 
    max-width: 100%; 
    margin: 0 auto;
    padding: 40px 20px;
  }
  .hero h1 {
    font-size: clamp(1.75rem, 7vw, 2.5rem);
    text-align: center;
  }
  .subtitle {
    text-align: center;
    font-size: 1rem;
  }
  .hero-actions {
    justify-content: center;
  }
  .two { grid-template-columns: 1fr; }
  .three { grid-template-columns: 1fr !important; }
  .product-group { grid-template-columns: 1fr !important; }
  .nav-toggle { display: inline-block; }
  .nav-menu { display: none; position: absolute; right: 0; top: calc(100% + 6px); background: #fff; padding: .5rem; border-radius: 12px; box-shadow: var(--c-shadow); }
  body.dark-mode .nav-menu { background: #242736; }
  .nav-menu.open { display: grid; }
  .footer-content { grid-template-columns: 1fr; gap: 2rem; }
  .footer-brand { margin-bottom: 8px; }
  .hero { padding-top: 120px; }
}