/* modern-mens-fashion-030334/frontend/public/css/style.css */

/* =========================================
   1. Design Tokens & Global Resets
   ========================================= */
:root {
  /* Color Palette */
  --color-primary: #2C2C2C;        /* 深炭灰 */
  --color-secondary: #F8F8F8;      /* 浅米白 */
  --color-accent: #B76E22;         /* 暖铜色 */
  --color-text: #2C2C2C;           /* 正文黑 */
  --color-text-light: #666666;     /* 辅助灰 */
  --color-bg: #FFFFFF;             /* 纯白背景 */
  --color-bg-alt: #F4F4F4;         /* 浅灰背景 */

  /* Typography */
  --font-sans: "Helvetica Now", "Arial", "Noto Sans SC", "Source Han Sans CN", sans-serif;
  
  /* Pico CSS Overrides (Theme Configuration) */
  --pico-font-family: var(--font-sans);
  --pico-background-color: var(--color-bg);
  --pico-color: var(--color-text);
  --pico-primary: var(--color-primary);
  --pico-primary-background: var(--color-primary);
  --pico-primary-hover: #000000;
  --pico-primary-inverse: var(--color-secondary);
  --pico-border-radius: 0px; /* 追求极简锐利感 */
  --pico-spacing: 1.5rem;
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-weight: 300; /* Light */
  line-height: 1.6;
  color: var(--color-text);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  background-color: var(--color-bg);
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500; /* Medium */
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
p { margin-bottom: 1.5rem; color: var(--color-text-light); }

/* Utility Classes */
.text-center { text-align: center; }
.text-uppercase { text-transform: uppercase; letter-spacing: 0.1em; }
.container-fluid { max-width: 100%; padding: 0; margin: 0; }
.section-padding { padding: 5rem 2rem; }
.bg-alt { background-color: var(--color-bg-alt); }
.hidden { display: none !important; }
.fade-in { animation: fadeIn 0.8s ease-out forwards; }

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================
   2. Navigation
   ========================================= */
nav.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 3rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

nav.navbar .brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-decoration: none;
  color: var(--color-primary);
  text-transform: uppercase;
}

nav.navbar ul {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav.navbar ul li a {
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  transition: color 0.3s;
}

nav.navbar ul li a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -4px;
  left: 0;
  background-color: var(--color-accent);
  transition: width 0.3s;
}

nav.navbar ul li a:hover { color: var(--color-primary); }
nav.navbar ul li a:hover::after { width: 100%; }

/* Mobile Menu Toggle */
.menu-toggle { display: none; cursor: pointer; font-size: 1.5rem; }

/* =========================================
   3. Hero Section (Carousel)
   ========================================= */
.hero-section {
  position: relative;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  margin-top: 0;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  background-size: cover;
  background-position: center;
}

.hero-slide.active { opacity: 1; }

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.25); /* Darker overlay for better text contrast */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
  padding: 0 1rem;
}

.hero-overlay h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
  font-weight: 400;
}

.hero-overlay p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.95);
  max-width: 600px;
  font-weight: 300;
  letter-spacing: 1px;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  animation: bounce 2s infinite;
  cursor: pointer;
  font-size: 1.5rem;
  opacity: 0.8;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
  40% { transform: translateY(-10px) translateX(-50%); }
  60% { transform: translateY(-5px) translateX(-50%); }
}

/* =========================================
   4. Style Categories (Grid)
   ========================================= */
.style-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0; /* Seamless */
}

.style-card {
  position: relative;
  height: 60vh;
  overflow: hidden;
  cursor: pointer;
}

.style-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.style-card:hover img {
  transform: scale(1.05);
}

.style-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 3rem 2rem;
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
  color: #fff;
  transition: all 0.4s ease;
}

.style-card h3 {
  color: #fff;
  margin: 0;
  font-weight: 400;
  font-size: 1.8rem;
  letter-spacing: 0.05em;
}

.style-card p {
  color: rgba(255,255,255,0.9);
  margin-top: 0.5rem;
  font-size: 1rem;
  opacity: 0.8;
  transform: translateY(10px);
  transition: all 0.4s ease;
}

.style-card:hover p {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   5. Editor's Pick & Details
   ========================================= */
.editor-picks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

.pick-card {
  background: transparent;
  border: none;
}

.pick-card img {
  width: 100%;
  height: 550px;
  object-fit: cover;
  margin-bottom: 1.5rem;
  filter: grayscale(20%);
  transition: filter 0.4s ease;
}

.pick-card:hover img {
  filter: grayscale(0%);
}

.pick-info { text-align: left; }
.pick-info h4 { margin-bottom: 0.5rem; font-size: 1.1rem; letter-spacing: 0.05em; }
.pick-info p { font-size: 0.9rem; color: var(--color-text-light); margin-bottom: 0; font-style: italic; }

/* Texture & Details Section */
.texture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.texture-item {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #f0f0f0;
}

.texture-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.texture-item:hover img { transform: scale(1.1); }

.texture-info {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  color: #fff;
  font-size: 0.9rem;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity 0.3s;
}

.texture-item:hover .texture-info { opacity: 1; }

/* =========================================
   6. Showcase & Inner Pages
   ========================================= */
.page-header {
  padding: 10rem 2rem 5rem; /* Top padding accounts for fixed navbar */
  text-align: center;
  background-color: var(--color-bg-alt);
  margin-bottom: 3rem;
}

.page-header h1 { margin-bottom: 1rem; font-size: 3rem; }
.page-header p { max-width: 700px; margin: 0 auto; font-size: 1.1rem; }

/* Showcase Grid (Masonry-like) */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  padding: 0;
}

.showcase-item {
  display: block;
  text-decoration: none;
  color: inherit;
}

.showcase-item img {
  width: 100%;
  display: block;
  aspect-ratio: 3/4;
  object-fit: cover;
  margin-bottom: 1rem;
}

.showcase-item h4 { font-size: 1.1rem; margin-bottom: 0.25rem; }
.showcase-item p { font-size: 0.9rem; color: var(--color-text-light); }

/* Detail Specs */
.specs-list dl {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1rem;
  margin: 2rem 0;
  font-size: 0.95rem;
}

.specs-list dt { font-weight: 600; color: var(--color-primary); }
.specs-list dd { margin: 0; color: var(--color-text-light); }

/* =========================================
   7. Footer
   ========================================= */
footer {
  background-color: var(--color-primary);
  color: rgba(255,255,255,0.6);
  padding: 4rem 2rem;
  text-align: center;
  font-size: 0.85rem;
  margin-top: 0;
}

footer .divider {
  height: 1px;
  width: 50px;
  background: rgba(255,255,255,0.1);
  margin: 1.5rem auto;
}

footer p { margin: 0; color: inherit; font-weight: 300; }

/* =========================================
   8. Responsive Design
   ========================================= */
@media (max-width: 992px) {
  .style-categories { grid-template-columns: 1fr; }
  .style-card { height: 50vh; }
  .texture-grid { grid-template-columns: repeat(2, 1fr); }
  
  nav.navbar { padding: 1rem 2rem; }
}

@media (max-width: 768px) {
  nav.navbar { padding: 1rem; }
  nav.navbar ul { 
    display: none; 
    flex-direction: column; 
    position: absolute; 
    top: 100%; 
    left: 0; 
    width: 100%; 
    background: #fff; 
    padding: 2rem; 
    box-shadow: 0 10px 20px rgba(0,0,0,0.05); 
    gap: 1.5rem;
  }
  
  nav.navbar ul.open { display: flex; }
  .menu-toggle { display: block; }
  
  .hero-overlay h1 { font-size: 2.2rem; }
  .section-padding { padding: 4rem 1.5rem; }
  
  .texture-grid { grid-template-columns: 1fr; }
  .editor-picks-grid { grid-template-columns: 1fr; }
  .pick-card img { height: auto; aspect-ratio: 3/4; }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
}

/* Accessibility Focus Styles */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* Slot System (Dynamic Content) */
[data-slot] {
  min-height: 20px;
  display: block;
}