/* ============================================
   GuangHe Manufacturing - Design System
   Based on Logo Color Palette
   ============================================ */

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

:root {
  /* ============================================
     BRAND COLOR SYSTEM (from Logo - Toned Down)
     主色：陶橙 #D9643A  (Logo #FE672E 降饱和)
     辅色：暖金 #D9821A  (Logo #FE8906 降饱和)
     深色：陶红 #B8463F  (Logo #DC3733 降饱和)
     暖白：奶油 #FAF8F2
     深底：暖棕 #2B2018  (Hero/视频区背景)
     ============================================ */

  /* Primary - Toned-down Orange-Red (Logo Main, reduced saturation) */
  --color-primary: #D9643A;
  --color-primary-dark: #B84A25;
  --color-primary-darker: #963A1A;
  --color-primary-light: #E58560;
  --color-primary-lighter: #F0A882;

  /* Secondary - Muted Golden Orange (Logo Accent, reduced saturation) */
  --color-secondary: #D9821A;
  --color-secondary-dark: #B86D10;
  --color-secondary-light: #E8A040;

  /* Accent - Deep Terracotta (Logo Deep, reduced saturation) */
  --color-accent: #B8463F;
  --color-accent-dark: #963530;
  --color-accent-light: #CE6258;

  /* Warm Neutrals (Logo Background) */
  --color-cream: #FAF8F2;
  --color-peach: #F5E4D3;
  --color-peach-light: #FBF0E8;
  --color-amber: #C89030;

  /* Functional Colors */
  --color-success: #1FA855;     /* WhatsApp Green - slightly muted */
  --color-telegram: #0077AA;
  --color-warning: #D9821A;

  /* Neutrals - Warm-Tinted Dark */
  --color-bg: #ffffff;
  --color-bg-alt: #FAF6F1;       /* Warm off-white */
  --color-bg-warm: #F8F5EE;     /* Cream from logo */
  --color-bg-dark: #2B2018;     /* Warm dark (warmer) */
  --color-bg-dark-alt: #3A2C22;

  --color-text: #2D2018;         /* Warm dark brown */
  --color-text-muted: #6B5D50;   /* Warm gray-brown */
  --color-text-light: #9A8B7C;
  --color-border: #E8DDD0;       /* Warm border */
  --color-white: #ffffff;

  /* Gradients - toned down */
  --gradient-primary: linear-gradient(135deg, #D9643A 0%, #D9821A 100%);
  --gradient-warm: linear-gradient(135deg, #2B2018 0%, #3A2C22 50%, #4A3528 100%);
  --gradient-dark: linear-gradient(180deg, #2B2018 0%, #3A2C22 100%);
  --gradient-hero-overlay: linear-gradient(135deg, rgba(43,32,24,0.88) 0%, rgba(58,44,34,0.82) 50%, rgba(74,53,40,0.75) 100%);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: 'Poppins', var(--font-sans);
  --font-cn: 'Noto Sans SC', var(--font-sans);

  /* Spacing */
  --section-padding: 80px 0;
  --container-max: 1200px;
  --container-padding: 0 24px;

  /* Transitions */
  --transition: 0.3s ease;
  --transition-slow: 0.5s ease;
  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows - Warm tinted, subtle */
  --shadow-sm: 0 2px 8px rgba(43, 32, 24, 0.06);
  --shadow-md: 0 4px 20px rgba(43, 32, 24, 0.10);
  --shadow-lg: 0 8px 40px rgba(43, 32, 24, 0.15);
  --shadow-glow: 0 0 40px rgba(217, 100, 58, 0.15);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--container-padding);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.6rem; }
h4 { font-size: 1.25rem; }

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

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

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 4px 15px rgba(217, 100, 58, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(217, 100, 58, 0.3);
  color: var(--color-white);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
}

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

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

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

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

.btn-whatsapp:hover {
  background: #1da851;
  color: var(--color-white);
  transform: translateY(-2px);
}

/* ---------- Section Headers ---------- */
.section {
  padding: var(--section-padding);
}

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

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

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-header .eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: 12px;
  position: relative;
  padding: 0 20px;
}

.section-header .eyebrow::before,
.section-header .eyebrow::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-header .eyebrow::before { left: -20px; }
.section-header .eyebrow::after { right: -20px; }

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* ---------- Header / Navigation ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo img {
  width: var(--logo-width, 40px);
  height: var(--logo-height, 40px);
  object-fit: contain;
  border-radius: 6px;
}

.nav-logo .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo .brand-text .name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-text);
}

.nav-logo .brand-text .tag {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  flex-shrink: 0;
}

.nav-menu a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  padding: 4px 0;
  white-space: nowrap;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: width var(--transition);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* ---------- Language Switcher (Dropdown) ---------- */
.nav-lang {
  position: relative;
}

.nav-lang select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background: transparent;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 6px 30px 6px 12px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B5D50' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 12px;
}

.nav-lang select:hover {
  border-color: var(--color-primary);
}

.nav-lang select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(217, 100, 58, 0.10);
}

.nav-lang select option {
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: var(--color-white);
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-warm);
  z-index: 0;
}

.hero-bg-image {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../assets/images/hero/hero-bg.jpg') center/cover no-repeat;
  opacity: 0.25;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-hero-overlay);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 650px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero h1 {
  color: var(--color-white);
  font-size: 3.2rem;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero h1 .highlight {
  color: var(--color-secondary-light);
  background: none;
  -webkit-text-fill-color: var(--color-secondary-light);
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 36px;
  max-width: 550px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat {
  text-align: left;
}

.hero-stat .number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
  text-shadow: 0 2px 20px rgba(217, 130, 26, 0.4);
}

.hero-stat .label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  margin-top: 4px;
}

/* ---------- Trust Bar ---------- */
.trust-bar {
  background: var(--color-bg-dark);
  padding: 24px 0;
  overflow: hidden;
}

.trust-bar .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
}

.trust-item .icon {
  font-size: 1.3rem;
  color: var(--color-secondary);
}

/* ---------- Products Grid ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid var(--color-border);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-lighter);
}

.product-card .product-image {
  width: 100%;
  height: 240px;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-card .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.08);
}

.product-card .product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 10px rgba(217, 100, 58, 0.2);
}

.product-card .product-body {
  padding: 24px;
}

.product-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.product-card .product-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
  line-height: 1.6;
}

.product-card .product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.product-card .product-specs span {
  background: var(--color-peach-light);
  color: var(--color-primary-dark);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* ---------- Factory Showcase ---------- */
.factory-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.factory-showcase .factory-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.factory-showcase .factory-images img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.factory-showcase .factory-images img:first-child {
  grid-column: span 2;
  height: 280px;
}

.factory-showcase .factory-text h2 {
  margin-bottom: 20px;
}

.factory-showcase .factory-text > p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  font-size: 1.05rem;
}

.factory-features {
  display: grid;
  gap: 20px;
}

.factory-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.factory-feature .feature-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(217, 100, 58, 0.15);
}

.factory-feature h4 {
  margin-bottom: 4px;
}

.factory-feature p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* ---------- Video Section ---------- */
.video-section {
  background: var(--color-bg-dark);
  color: var(--color-white);
  position: relative;
}

.video-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.video-section .section-header h2 {
  color: var(--color-white);
}

.video-section .section-header p {
  color: rgba(255,255,255,0.7);
}

.video-wrapper {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
  border: 1px solid rgba(217, 100, 58, 0.15);
}

.video-wrapper video {
  width: 100%;
  display: block;
}

/* ---------- Production Process ---------- */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step .step-number {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--gradient-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  box-shadow: 0 4px 20px rgba(217, 100, 58, 0.2);
}

.process-step:nth-child(even) .step-number {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-light));
  box-shadow: 0 4px 20px rgba(217, 130, 26, 0.2);
}

.process-step h4 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.process-step p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ---------- Certifications ---------- */
.certifications-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
}

.cert-badge {
  width: 140px;
  height: 140px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  text-align: center;
  padding: 16px;
}

.cert-badge:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-lighter);
}

.cert-badge .cert-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}

.cert-badge .cert-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}

.cert-badge .cert-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 24px 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-question .faq-icon {
  flex-shrink: 0;
  font-size: 1.3rem;
  color: var(--color-primary);
  transition: transform var(--transition);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding-bottom: 24px;
}

/* ---------- Contact Section ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 20px;
}

.contact-info > p {
  color: var(--color-text-muted);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.contact-channels {
  display: grid;
  gap: 16px;
}

.contact-channel {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  text-decoration: none;
  color: var(--color-text);
}

.contact-channel:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.contact-channel .channel-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--color-white);
  flex-shrink: 0;
}

.channel-icon.whatsapp { background: var(--color-success); }
.channel-icon.telegram { background: var(--color-telegram); }
.channel-icon.email { background: var(--gradient-primary); }

.contact-channel .channel-info h4 {
  margin-bottom: 2px;
  font-size: 1rem;
}

.contact-channel .channel-info p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Inquiry Form */
.inquiry-form {
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.inquiry-form h3 {
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--color-bg);
  color: var(--color-text);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(217, 100, 58, 0.10);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 12px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 24px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-warm);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo {
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-brand .nav-logo .brand-text .name {
  color: var(--color-white);
}

.footer-brand .nav-logo .brand-text .tag {
  color: rgba(255,255,255,0.5);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.1rem;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: var(--color-secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
}

/* ---------- Floating WhatsApp Button ---------- */
.float-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.8rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition);
  text-decoration: none;
  animation: pulse-wa 2s infinite;
}

.float-whatsapp:hover {
  transform: scale(1.1);
  color: var(--color-white);
}

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* ---------- Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 968px) {
  .factory-showcase,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 1024px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-toggle { display: block; }
  .nav-actions .btn { display: none; }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.7rem; }
  
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1.05rem; }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }
  
  .hero-stat .number { font-size: 1.8rem; }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand .nav-logo,
  .footer-social {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  
  .inquiry-form {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }
  
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .float-whatsapp {
    width: 52px;
    height: 52px;
    font-size: 1.5rem;
    bottom: 16px;
    right: 16px;
  }
}