/* ==========================================================================
   1. Variables & Reset
   ========================================================================== */
:root {
  /* Color Palette */
  --color-dark: #2C2C2C;
  --color-light-gray: #F5F5F5;
  --color-off-white: #FAF9F6;
  --color-accent: #1A365D;
  --color-white: #FFFFFF;
  --color-text-primary: #2C2C2C;
  --color-text-secondary: #666666;
  --color-border: #E5E5E5;

  /* Typography */
  --font-primary: 'Helvetica Neue', Helvetica, 'Source Han Sans CN', 'Noto Sans SC', sans-serif;
  --font-size-base: 16px;
  --font-size-h1: clamp(2.5rem, 5vw, 4rem);
  --font-size-h2: clamp(2rem, 4vw, 3rem);
  --font-size-h3: clamp(1.5rem, 3vw, 2rem);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-smooth: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background-color: var(--color-off-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ==========================================================================
   2. Typography & Utilities
   ========================================================================== */
.container {
  width: 90%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

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

.text-center { text-align: center; }
.text-right { text-align: right; }
.uppercase { text-transform: uppercase; letter-spacing: 0.05em; }

h1, h2, h3, h4 {
  font-weight: 300; /* Light weight for minimalist feel */
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }

.subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-xs);
  display: block;
}

/* Slot Placeholder Style */
.slot-placeholder {
    border: 1px dashed #ccc;
    background: #f9f9f9;
    padding: 20px;
    text-align: center;
    color: #999;
    margin: 10px 0;
}

/* ==========================================================================
   3. Navigation
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: background-color var(--transition-fast), padding var(--transition-fast);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-sm) 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.03);
}

.nav-container {
  display: flex;
  justify-content: center; /* Center align items */
  align-items: center;
  position: relative;
}

.nav-logo {
  position: absolute;
  left: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  display: none; /* Hidden by default per design req, can enable if needed */
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-item {
  position: relative;
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  padding-bottom: 5px;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-dark);
  transition: width var(--transition-fast);
}

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

/* Mobile Menu Trigger */
.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  position: absolute;
  right: var(--spacing-sm);
}

/* ==========================================================================
   4. Page Sections
   ========================================================================== */
.page-section {
  min-height: 100vh;
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease, transform 1s ease;
}

.page-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Home / Hero Section */
#home {
  height: 100vh;
  width: 100%;
  overflow: hidden;
  position: relative;
}

.hero-slider {
  height: 100%;
  width: 100%;
  position: relative;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
  background-size: cover;
  background-position: center;
}

.slide.active {
  opacity: 1;
}

.slide-content {
  position: absolute;
  bottom: 20%;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-white);
  text-align: center;
  z-index: 10;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.slide-text {
  font-size: 1.2rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
}

.btn-explore {
  display: inline-block;
  padding: 12px 30px;
  border: 1px solid var(--color-white);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  transition: all var(--transition-fast);
  animation: pulse 3s infinite;
  background: transparent;
  cursor: pointer;
}

.btn-explore:hover {
  background: var(--color-white);
  color: var(--color-dark);
}

.hero-features {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  z-index: 10;
  color: var(--color-white);
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.feature-item:hover {
  opacity: 1;
}

.feature-icon {
  width: 24px;
  height: 24px;
  margin-bottom: 5px;
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 50%; /* Just a placeholder shape */
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Fashion Section */
#fashion {
  background: linear-gradient(to bottom, transparent, var(--color-light-gray));
}

.trend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  margin-bottom: var(--spacing-xl);
}

.trend-content h3 {
  margin-bottom: var(--spacing-sm);
}

.inspiration-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.insp-card {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  cursor: pointer;
}

.insp-card img {
  width: 100%;
  height: 100%;
  transition: transform 0.8s ease;
}

.insp-card:hover img {
  transform: scale(1.03);
}

.insp-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.insp-card:hover .insp-overlay {
  opacity: 1;
}

.insp-text {
  color: var(--color-white);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--color-white);
  padding-bottom: 5px;
}

/* Color Story */
.color-story {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
}

.color-block {
  flex: 1;
  height: 200px;
  position: relative;
}

.color-1 { background-color: #2C2C2C; }
.color-2 { background-color: #E0DCCD; } /* Oat */
.color-3 { background-color: #1A365D; }

/* Wardrobe Section */
.category-nav {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
  padding-bottom: 10px;
}

.cat-btn {
  background: none;
  border: none;
  font-size: 1rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 5px 15px;
  transition: all var(--transition-fast);
  font-family: var(--font-primary);
}

.cat-btn.active {
  color: var(--color-dark);
  border-bottom: 1px solid var(--color-dark);
}

.wardrobe-display {
  display: none;
  animation: fadeIn 0.5s ease;
}

.wardrobe-display.active {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.wardrobe-detail-link {
  display: block;
  margin-top: var(--spacing-sm);
  font-size: 0.8rem;
  text-decoration: underline;
  color: var(--color-text-secondary);
}

/* Details Section */
.fabric-full {
  width: 100%;
  height: 60vh;
  position: relative;
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}

.fabric-info {
  position: absolute;
  bottom: var(--spacing-md);
  left: var(--spacing-md);
  background: rgba(255,255,255,0.8);
  padding: var(--spacing-sm) var(--spacing-md);
  backdrop-filter: blur(5px);
}

.craft-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

/* Attitude Section */
#attitude {
  background-color: var(--color-dark);
  color: var(--color-off-white);
}

.quote-container {
  height: 60vh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.quote-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: blur(5px);
}

.quote-text {
  position: relative;
  font-size: clamp(1.5rem, 4vw, 3rem);
  text-align: center;
  max-width: 800px;
  line-height: 1.4;
  font-style: italic;
}

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

.philo-item h3 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding-bottom: 10px;
  display: inline-block;
}

.philo-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  margin-top: var(--spacing-sm);
  filter: grayscale(80%);
  transition: filter var(--transition-fast);
}

.philo-item:hover .philo-img {
  filter: grayscale(0%);
}

.visual-story {
  height: 80vh;
  position: relative;
  margin-top: var(--spacing-xl);
}

.video-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  width: 100%;
  text-align: center;
}

/* Footer */
footer {
  padding: var(--spacing-md) 0;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  background-color: var(--color-off-white);
  border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   5. Animations
   ========================================================================== */
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   6. Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
  .inspiration-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .trend-grid, .craft-grid, .wardrobe-display.active {
    gap: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-xl: 4rem;
  }

  /* Navigation */
  .menu-toggle {
    display: block;
    color: var(--color-dark);
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 70%;
    background-color: var(--color-white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right var(--transition-fast);
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
  }

  .nav-links.active {
    right: 0;
  }

  /* Layout Adjustments */
  .trend-grid, 
  .craft-grid, 
  .wardrobe-display.active,
  .philosophy-grid {
    grid-template-columns: 1fr;
  }
  
  .color-story {
    flex-direction: column;
  }
  
  .color-block {
    height: 100px;
  }

  .hero-features {
    display: none; /* Simplify for mobile */
  }
  
  .slide-content {
    width: 90%;
  }

  h1 { font-size: 2.5rem; }
}

/* Utilities */
.hidden { display: none !important; }
.fade-in { animation: fadeIn 1s ease forwards; }