/* YU LAI RONG INC - Furniture Website Styles */
/* Theme: Warm Brown - Professional furniture aesthetic */

:root {
  /* Color Palette - Warm Brown Theme */
  --color-primary: #8B4513;      /* Saddle Brown */
  --color-primary-dark: #6B3410;
  --color-primary-light: #A0522D;
  --color-accent: #D2691E;       /* Chocolate */
  --color-accent-light: #CD853F; /* Peru */

  /* Neutrals */
  --color-bg: #FAF8F5;           /* Warm off-white */
  --color-bg-alt: #F5F0EB;       /* Light warm gray */
  --color-text: #2C1810;         /* Dark brown */
  --color-text-muted: #5C4033;   /* Medium brown */
  --color-border: #D4C4B0;       /* Warm beige */

  /* Functional */
  --color-white: #FFFFFF;
  --color-black: #1A0F0A;
  --color-overlay: rgba(44, 24, 16, 0.6);

  /* Typography */
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --container-max: 1200px;
  --header-height: 80px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

ul, ol {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }

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

p:last-child {
  margin-bottom: 0;
}

.kicker {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-xl);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

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

.btn-ghost {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-ghost:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand {
  display: flex;
  align-items: center;
}

.brand-logo {
  height: 40px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.site-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-sm) 0;
  position: relative;
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-primary);
}

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

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

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

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  margin-top: var(--header-height);
  overflow: hidden;
}

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

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    var(--color-overlay) 0%,
    var(--color-overlay) 50%,
    transparent 100%
  );
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  width: 50%;
  max-width: 600px;
  padding: var(--space-3xl);
  color: var(--color-white);
}

.hero-kicker {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.hero-content p {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

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

.hero-dots {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-md);
  z-index: 10;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--color-white);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hero-dot:hover,
.hero-dot.is-active {
  background: var(--color-white);
}

/* Sections */
.section {
  padding: var(--space-3xl) 0;
}

.section-muted {
  background-color: var(--color-bg-alt);
}

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

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

.section-head .title {
  margin-bottom: var(--space-sm);
}

.section-head .subtitle {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  max-width: 600px;
}

.section-head.center .subtitle {
  margin: 0 auto;
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.card-media {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.card-body {
  padding: var(--space-lg);
}

.card-body h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

.card-body p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Split Layout */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.split.reverse {
  direction: rtl;
}

.split.reverse > * {
  direction: ltr;
}

.split-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.split-media img {
  width: 100%;
  height: auto;
}

.split-content .kicker {
  margin-bottom: var(--space-sm);
}

.split-content .title {
  margin-bottom: var(--space-lg);
}

.checklist {
  margin: var(--space-xl) 0;
}

.checklist li {
  position: relative;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* Testimonials */
.testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.review {
  background: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.review-head {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg-alt);
}

.review-name {
  font-weight: 600;
  font-size: 1rem;
}

.review-role {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.stars {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.stars span {
  font-size: 1rem;
  letter-spacing: 2px;
}

.review p {
  color: var(--color-text-muted);
  font-style: italic;
}

/* Message Form */
.message-split {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-2xl);
  align-items: start;
}

.message-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.message-media img {
  width: 100%;
  height: auto;
}

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.field .label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.input,
.textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input:focus,
.textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.1);
}

.textarea {
  resize: vertical;
  min-height: 150px;
}

.form-hint {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* About Page */
.about-hero {
  position: relative;
  height: 50vh;
  min-height: 400px;
  margin-top: var(--header-height);
  overflow: hidden;
}

.about-hero-image {
  position: absolute;
  inset: 0;
}

.about-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
}

.about-hero-content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--color-white);
}

.about-hero-content h1 {
  color: var(--color-white);
}

.about-hero-content p {
  font-size: 1.25rem;
  opacity: 0.9;
}

/* Values Grid */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.value-card {
  text-align: center;
  padding: var(--space-xl);
}

.value-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  color: var(--color-primary);
}

.value-icon svg {
  width: 100%;
  height: 100%;
}

.value-card h3 {
  margin-bottom: var(--space-md);
}

.value-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.contact-block {
  margin: var(--space-xl) 0;
  padding: var(--space-xl);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
}

.contact-block h3 {
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.contact-block address {
  font-style: normal;
}

.contact-block p {
  margin-bottom: var(--space-md);
}

/* Contact Page */
.contact-banner {
  position: relative;
  height: 40vh;
  min-height: 300px;
  margin-top: var(--header-height);
  overflow: hidden;
}

.contact-banner-image {
  position: absolute;
  inset: 0;
}

.contact-banner-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-banner-overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
}

.contact-banner-content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--color-white);
}

.contact-banner-content h1 {
  color: var(--color-white);
}

.contact-info-block {
  margin: var(--space-xl) 0;
}

.contact-item {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.contact-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.contact-icon svg {
  width: 100%;
  height: 100%;
}

.contact-text h3 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}

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

.social-links {
  margin-top: var(--space-xl);
}

.social-links h3 {
  font-size: 1rem;
  margin-bottom: var(--space-md);
}

/* Footer */
.site-footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: var(--space-3xl);
}

.footer-logo {
  height: 36px;
  width: auto;
  margin-bottom: var(--space-lg);
}

.footer-desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

.social {
  display: flex;
  gap: var(--space-md);
}

.social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: var(--color-white);
  transition: background var(--transition-fast);
}

.social a:hover {
  background: var(--color-primary);
}

.social svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--color-white);
}

.footer-list li {
  margin-bottom: var(--space-md);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
}

.footer-list a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-list a:hover {
  color: var(--color-white);
}

.footer-bottom {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-copy {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonials {
    grid-template-columns: repeat(2, 1fr);
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    background: var(--color-white);
    padding: var(--space-xl);
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .nav-toggle {
    display: block;
  }

  .hero-content {
    width: 100%;
    max-width: none;
    padding: var(--space-xl);
  }

  .hero-overlay {
    background: var(--color-overlay);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

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

  .split.reverse {
    direction: ltr;
  }

  .testimonials {
    grid-template-columns: 1fr;
  }

  .message-split {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}