/* ============================================
   Fashion POD / Shangxin Digital Printing
   Modern Industrial B2B Style
   ============================================ */

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

:root {
  --primary: #1a365d;
  --primary-light: #2d5a8e;
  --primary-dark: #0f2340;
  --accent: #e67e22;
  --accent-hover: #cf6d17;
  --accent-light: #f39c12;
  --white: #ffffff;
  --bg: #ffffff;
  --bg-alt: #f7f8fa;
  --bg-dark: #0d1b2a;
  --border: #d4d4d4;
  --border-light: #e8e8e8;
  --text-dark: #1a1a2e;
  --text-medium: #4a5568;
  --text-light: #718096;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Courier New', monospace;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
  --radius: 6px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  line-height: 1.7;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* --- Layout --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

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

.section-title {
  margin-bottom: 48px;
  text-align: center;
}

.section-title h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title p {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.section-title.left {
  text-align: left;
}

.section-title.left h2 {
  text-align: left;
}

.section-title.left p {
  margin: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: var(--transition);
  border-radius: var(--radius);
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

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

.btn-secondary:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  height: 64px;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-logo img {
  height: 32px;
  width: auto;
  max-height: 40px;
  display: block;
  object-fit: contain;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-medium);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 6px 0;
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-cta {
  background: var(--primary) !important;
  color: var(--white) !important;
  padding: 9px 20px !important;
  border-radius: var(--radius);
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--primary-light) !important;
  transform: translateY(-1px);
}

.nav-cta::after {
  display: none !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  position: relative;
  color: var(--white);
  padding: 180px 0 120px;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/img_id2.png');
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(26,54,93,0.92) 0%, rgba(13,27,42,0.88) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: -0.02em;
}

.hero h1 span {
  color: var(--accent-light);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.85;
  margin-bottom: 40px;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 400;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Stats Bar --- */
.stats-bar {
  background: var(--primary);
  padding: 0;
  position: relative;
  z-index: 2;
}

.stats-bar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
}

.stat-item {
  padding: 36px 20px;
  text-align: center;
  background: var(--primary);
  border-right: 1px solid rgba(255,255,255,0.1);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item .stat-number {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: 6px;
}

.stat-item .stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* --- Product Cards --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.product-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.product-card .card-image {
  height: 200px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card .card-body {
  padding: 28px;
}

.product-card .card-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.product-card .card-body p {
  font-size: 0.88rem;
  color: var(--text-medium);
  margin-bottom: 20px;
  line-height: 1.65;
}

.product-card .card-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.product-card .card-link:hover {
  gap: 10px;
  color: var(--accent-hover);
}

/* --- About Brief --- */
.about-brief {
  background: var(--bg-alt);
}

.about-brief-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-brief-text h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.about-brief-text p {
  color: var(--text-medium);
  margin-bottom: 15px;
  line-height: 1.8;
  font-size: 0.95rem;
}

.about-brief-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-box {
  background: var(--white);
  padding: 24px 20px;
  text-align: center;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
}

.stat-box .stat-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-box .stat-label {
  font-size: 0.75rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* --- Feature Cards --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  padding: 36px 28px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.feature-card .icon {
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-medium);
  line-height: 1.65;
}

/* --- Page Header --- */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 140px 0 60px;
  position: relative;
  overflow: hidden;
}

.page-header::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, rgba(230,126,34,0.05) 100%);
}

.page-header h1 {
  font-size: 2.2rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.page-header p {
  font-size: 1rem;
  opacity: 0.75;
  max-width: 600px;
  position: relative;
  z-index: 1;
}

/* --- Content Sections --- */
.content-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 64px;
}

.content-block.reverse {
  direction: rtl;
}

.content-block.reverse > * {
  direction: ltr;
}

.content-block h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.content-block p {
  color: var(--text-medium);
  line-height: 1.8;
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.content-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.content-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* --- Process Steps --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.process-steps-6 {
  grid-template-columns: repeat(6, 1fr);
}

.step-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.step-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.step-number {
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  margin: 0 auto 14px;
}

.step-card h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.step-card p {
  font-size: 0.82rem;
  color: var(--text-medium);
  line-height: 1.55;
}

/* --- Specs Table --- */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.specs-table thead {
  background: var(--primary);
  color: var(--white);
}

.specs-table th {
  padding: 14px 18px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-align: left;
}

.specs-table td {
  padding: 12px 18px;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-medium);
}

.specs-table td:first-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-dark);
  width: 50px;
  text-align: center;
}

.specs-table tbody tr:nth-child(even) {
  background: var(--bg-alt);
}

.specs-table tbody tr:hover {
  background: rgba(230,126,34,0.05);
}

/* --- Advantage List --- */
.advantage-list {
  margin: 20px 0;
}

.advantage-list li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-medium);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  line-height: 1.5;
}

.advantage-list li i {
  color: var(--accent);
  font-size: 0.75rem;
  margin-top: 5px;
  flex-shrink: 0;
}

/* --- Solution Box --- */
.solution-box {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 48px;
  border-radius: var(--radius);
  margin-top: 40px;
}

.solution-box h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.solution-box ul li {
  padding: 8px 0;
  font-size: 0.92rem;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  line-height: 1.5;
  opacity: 0.9;
}

.solution-box ul li i {
  color: var(--accent-light);
  margin-top: 4px;
  flex-shrink: 0;
}

/* --- Warehouse Grid --- */
.warehouse-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.warehouse-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}

.warehouse-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.warehouse-card i {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 14px;
}

.warehouse-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.warehouse-card p {
  font-size: 0.82rem;
  color: var(--text-light);
}

/* --- Application Tags --- */
.app-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0;
}

.app-tag {
  background: var(--bg-alt);
  border: 1px solid var(--border-light);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-medium);
  transition: var(--transition);
}

.app-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Comparison Cards --- */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.comparison-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: var(--transition);
}

.comparison-card:hover {
  box-shadow: var(--shadow-md);
}

.comparison-card .comp-icon {
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 14px;
}

.comparison-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.comparison-card p {
  font-size: 0.875rem;
  color: var(--text-medium);
  line-height: 1.6;
}

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: rgba(230,126,34,0.08);
  border-radius: 50%;
}

.cta-section h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}

.cta-section p {
  font-size: 1rem;
  opacity: 0.75;
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.cta-section .btn {
  position: relative;
  z-index: 1;
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

.contact-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px 20px;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--accent);
}

.contact-card i {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 10px;
}

.contact-card h4 {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.contact-card p {
  font-size: 0.88rem;
  color: var(--text-dark);
  font-weight: 500;
}

.contact-form {
  background: var(--white);
  border: 1px solid var(--border-light);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.contact-form h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
  text-transform: uppercase;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--white);
  color: var(--text-dark);
  border-radius: var(--radius);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(230,126,34,0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* --- Address Block --- */
.address-block {
  background: var(--bg-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 20px;
}

.address-block h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.address-block p {
  font-size: 0.88rem;
  color: var(--text-medium);
  line-height: 1.6;
}

/* --- Footer --- */
.footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3 {
  color: var(--white);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
  font-weight: 600;
}

.footer-col p {
  font-size: 0.85rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 0.85rem;
  opacity: 0.7;
}

.footer-col ul li a:hover {
  opacity: 1;
  color: var(--accent);
}

.footer-col ul li i {
  margin-right: 8px;
  font-size: 0.75rem;
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.footer-bottom p {
  font-size: 0.8rem;
  opacity: 0.5;
}

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

.footer-social a {
  width: 32px;
  height: 32px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius);
}

.footer-social a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Quote CTA on product pages --- */
.quote-cta {
  text-align: center;
  padding: 48px 0;
  margin-top: 48px;
  border-top: 1px solid var(--border-light);
}

.quote-cta h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.quote-cta p {
  color: var(--text-medium);
  margin-bottom: 24px;
}

/* --- Consumables note --- */
.consumables-note {
  background: var(--bg-alt);
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  margin: 16px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.88rem;
  color: var(--text-medium);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .content-block,
  .about-brief-content,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .content-block.reverse {
    direction: ltr;
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps-6 {
    grid-template-columns: repeat(3, 1fr);
  }
  .warehouse-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    z-index: 999;
    box-shadow: var(--shadow-lg);
  }

  .nav-links.active {
    transform: translateY(0);
  }

  .hero {
    padding: 140px 0 80px;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .section {
    padding: 56px 0;
  }

  .section-title h2 {
    font-size: 1.4rem;
  }

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

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

  .process-steps {
    grid-template-columns: 1fr;
  }

  .process-steps-6 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .stat-item {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

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

  .contact-cards {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-brief-stats {
    grid-template-columns: 1fr 1fr;
  }

  .solution-box {
    padding: 32px 24px;
  }

  .contact-form {
    padding: 24px;
  }

  .page-header {
    padding: 120px 0 48px;
  }

  .page-header h1 {
    font-size: 1.6rem;
  }
}

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

  .process-steps-6 {
    grid-template-columns: 1fr;
  }

  .about-brief-stats {
    grid-template-columns: 1fr;
  }

  .specs-table {
    font-size: 0.8rem;
  }

  .specs-table th,
  .specs-table td {
    padding: 8px 12px;
  }
}

/* --- Floating WhatsApp Button --- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  font-size: 28px;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: all 0.3s ease;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
  background: #20bd5a;
}

.whatsapp-float i {
  line-height: 1;
}

@media (max-width: 768px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 16px;
    right: 16px;
    font-size: 24px;
  }
}