/* =========================================================
   BAYANEX INFORMATION TECHNOLOGY — STYLESHEET
   Structure:
   1. Design Tokens
   2. Reset & Base
   3. Layout Utilities
   4. Buttons
   5. Header & Navigation
   6. Hero
   7. Stats Strip
   8. Products Section
   9. About Section
   10. Company Section
   11. Forms (Inquiry / Checkout / Newsletter)
   12. Contact Section
   13. Footer
   14. Cart Drawer
   15. Checkout Overlay
   16. Animations
   17. Responsive
========================================================= */

/* ---------------------------------------------------------
   1. DESIGN TOKENS
--------------------------------------------------------- */
:root {
  /* Colors */
  --color-primary: #0B3D91;        /* Deep Blue */
  --color-primary-dark: #082a68;
  --color-primary-light: #E8EEF9;
  --color-secondary: #2B2E34;      /* Dark Gray */
  --color-accent: #3E8ED0;         /* Light Blue accent */
  --color-bg: #FFFFFF;
  --color-card: #F6F7F9;           /* Very light gray */
  --color-border: #E4E7EC;
  --color-text: #1B1E24;
  --color-text-muted: #656B78;
  --color-success: #1E7B45;

  /* Typography */
  --font-display: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  /* Layout */
  --max-width: 1240px;
  --section-padding: 96px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(20, 24, 33, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 24, 33, 0.08);
  --shadow-lg: 0 20px 48px rgba(20, 24, 33, 0.12);
  --transition: 200ms ease;
}

/* ---------------------------------------------------------
   2. RESET & BASE
--------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 16px;
  color: var(--color-secondary);
}

p {
  margin: 0 0 16px;
  color: var(--color-text-muted);
}

a {
  color: inherit;
  text-decoration: none;
}

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
  font-size: 15px;
}

/* Visible keyboard focus */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------------------------------------------------------
   3. LAYOUT UTILITIES
--------------------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 12px;
}

.section-heading {
  max-width: 620px;
  margin: 0 0 48px;
}

.section-heading h2 {
  font-size: clamp(28px, 3.4vw, 38px);
}

.section-subtitle {
  font-size: 16px;
}

/* ---------------------------------------------------------
   4. BUTTONS
--------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-body);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

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

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ---------------------------------------------------------
   5. HEADER & NAVIGATION
--------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}



.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-secondary);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.header-cta {
  padding: 11px 22px;
}

.cart-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-secondary);
  border-radius: 50%;
  transition: background var(--transition);
}

.cart-toggle:hover {
  background: var(--color-card);
}

.cart-count {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--color-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  min-width: 18px;
  height: 18px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-secondary);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 18, 24, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 400;
}

.nav-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ---------------------------------------------------------
   6. HERO
--------------------------------------------------------- */
.hero {
  padding: 72px 0 var(--section-padding);
  background: linear-gradient(180deg, #FAFBFD 0%, #FFFFFF 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-title {
  font-size: clamp(34px, 4.4vw, 52px);
  letter-spacing: -0.01em;
}

.hero-subtitle {
  font-size: 17px;
  max-width: 480px;
  margin-bottom: 32px;
}

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

/* Reusable placeholder block — used until real photography is added */
.image-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  border-radius: var(--radius-lg);
  border: 1.5px dashed var(--color-border);
  background: var(--color-card);
  color: var(--color-text-muted);
  padding: 32px;
}

.image-placeholder svg {
  color: var(--color-accent);
  margin-bottom: 6px;
}

.image-placeholder p {
  margin: 0;
  font-weight: 600;
  color: var(--color-secondary);
  font-size: 15px;
}

.image-placeholder span {
  font-size: 13px;
  max-width: 280px;
}

.hero-image-placeholder {
  height: 420px;
  box-shadow: var(--shadow-md);
}

/* ---------------------------------------------------------
   7. STATS STRIP
--------------------------------------------------------- */
.stats-strip {
  background: var(--color-primary);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  color: #fff;
}

.stat-label {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.78);
}

/* ---------------------------------------------------------
   8. PRODUCTS SECTION
--------------------------------------------------------- */
.products-section {
  padding: var(--section-padding) 0;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 24px;
}

.tab-btn {
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-card);
  transition: background var(--transition), color var(--transition);
}

.tab-btn:hover {
  color: var(--color-primary);
}

.tab-btn.is-active {
  background: var(--color-primary);
  color: #fff;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

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

.product-image {
  aspect-ratio: 4 / 3;
  background: var(--color-card);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

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

/* Icon-based placeholder used until real product photography is supplied */
.product-image-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  opacity: 0.5;
  transition: transform 300ms ease, opacity 300ms ease;
}

.product-card:hover .product-image-icon {
  transform: scale(1.08);
  opacity: 0.65;
}

.stock-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 11.5px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 999px;
  background: #fff;
  color: var(--color-success);
  box-shadow: var(--shadow-sm);
}

.stock-badge.is-out {
  color: #B3261E;
}

.product-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 6px;
}

.product-brand {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.product-name {
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 600;
  color: var(--color-secondary);
  margin: 0;
}

.product-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0 0 12px;
  flex: 1;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
}

.product-price {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--color-secondary);
}

.add-to-cart-btn {
  padding: 9px 16px;
  font-size: 13.5px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  transition: background var(--transition);
}

.add-to-cart-btn:hover {
  background: var(--color-primary-dark);
}

.add-to-cart-btn:disabled {
  background: var(--color-border);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 0;
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------
   9. ABOUT SECTION
--------------------------------------------------------- */
.about-section {
  padding: var(--section-padding) 0;
  background: var(--color-card);
}

.about-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: center;
}

.about-image-placeholder {
  height: 520px;
  box-shadow: var(--shadow-md);
}

.about-content h2 {
  font-size: clamp(26px, 3vw, 34px);
  max-width: 480px;
}

.about-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin: 28px 0;
}

.about-block h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.about-block p {
  font-size: 14.5px;
  margin-bottom: 20px;
}

/* ---------------------------------------------------------
   10. COMPANY SECTION
--------------------------------------------------------- */
.company-section {
  padding: var(--section-padding) 0;
}

.company-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.company-card {
  padding: 28px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition), border-color var(--transition);
}

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

.company-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: 16px;
}

.company-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.company-card p {
  font-size: 14px;
  margin: 0;
}

/* ---------------------------------------------------------
   11. FORMS
--------------------------------------------------------- */
.inquiry-section {
  padding: var(--section-padding) 0;
  background: var(--color-card);
}

.inquiry-inner {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
}

.inquiry-form,
.checkout-form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
}

.checkout-form {
  border: none;
  padding: 0;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-field {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
}

.form-field label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 6px;
}

.form-field input,
.form-field textarea {
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  background: #fff;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(62, 142, 208, 0.15);
}

.form-field textarea {
  resize: vertical;
}

.form-status {
  margin: 14px 0 0;
  font-size: 14px;
  font-weight: 500;
  min-height: 20px;
}

.form-status.is-success {
  color: var(--color-success);
}

.form-status.is-error {
  color: #B3261E;
}

/* ---------------------------------------------------------
   12. CONTACT SECTION
--------------------------------------------------------- */
.contact-section {
  padding: var(--section-padding) 0;
}

.contact-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin: 28px 0;
}

.contact-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 15px;
}

.contact-label {
  font-size: 12.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
}

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

.social-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.social-icon:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.map-placeholder {
  height: 100%;
  min-height: 340px;
  background: var(--color-card);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-text-muted);
  padding: 24px;
}

.map-placeholder p {
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 6px;
}

.map-placeholder span {
  font-size: 13.5px;
}

/* ---------------------------------------------------------
   13. FOOTER
--------------------------------------------------------- */
.site-footer {
  background: var(--color-secondary);
  color: rgba(255, 255, 255, 0.8);
  padding-top: 72px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 0.9fr 1.1fr;
  gap: 32px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
  display: inline-block;
  margin-bottom: 16px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

.footer-col h4 {
  color: #fff;
  font-size: 14.5px;
  margin-bottom: 18px;
  letter-spacing: 0.03em;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff;
}

.footer-newsletter p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
}

.newsletter-form input {
  flex: 1;
  min-width: 0;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.newsletter-form button {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.newsletter-form button:hover {
  background: var(--color-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 13.5px;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a:hover {
  color: #fff;
}

/* ---------------------------------------------------------
   14. CART DRAWER
--------------------------------------------------------- */
.cart-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 18, 24, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 600;
}

.cart-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 420px;
  max-width: 92vw;
  background: #fff;
  box-shadow: var(--shadow-lg);
  z-index: 700;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 320ms ease;
}

.cart-drawer.is-open {
  transform: translateX(0);
}

.cart-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  border-bottom: 1px solid var(--color-border);
}

.cart-drawer-header h2 {
  margin: 0;
  font-size: 19px;
}

.cart-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  border-radius: 50%;
  transition: background var(--transition);
}

.cart-close:hover {
  background: var(--color-card);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 8px 24px;
}

.cart-item {
  display: grid;
  grid-template-columns: 68px 1fr auto;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
}

.cart-item-image {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-card);
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-icon {
  width: 100%;
  height: 100%;
  opacity: 0.6;
}

.cart-item-name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-secondary);
  margin: 0 0 4px;
}

.cart-item-price {
  font-size: 13.5px;
  color: var(--color-text-muted);
  margin: 0 0 10px;
}

.qty-control {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.qty-btn {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--color-secondary);
}

.qty-btn:hover {
  color: var(--color-primary);
}

.qty-value {
  width: 28px;
  text-align: center;
  font-size: 13.5px;
  font-weight: 600;
}

.cart-item-remove {
  align-self: start;
  color: var(--color-text-muted);
  font-size: 12.5px;
  font-weight: 600;
  text-decoration: underline;
}

.cart-item-remove:hover {
  color: #B3261E;
}

.cart-empty {
  display: none;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 24px;
  text-align: center;
}

.cart-drawer.is-empty .cart-empty {
  display: flex;
}

.cart-drawer.is-empty .cart-items,
.cart-drawer.is-empty .cart-drawer-footer {
  display: none;
}

.cart-drawer-footer {
  padding: 20px 24px 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  font-size: 16px;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

/* ---------------------------------------------------------
   15. CHECKOUT OVERLAY
--------------------------------------------------------- */
.checkout-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 18, 24, 0.5);
  z-index: 800;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 24px;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.checkout-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.checkout-panel {
  background: #fff;
  border-radius: var(--radius-lg);
  max-width: 920px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.checkout-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  border-bottom: 1px solid var(--color-border);
}

.checkout-header h2 {
  margin: 0;
  font-size: 21px;
}

.checkout-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--transition);
}

.checkout-close:hover {
  background: var(--color-card);
}

.checkout-body {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  padding: 32px;
}

.checkout-form h3 {
  font-size: 15px;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.order-summary {
  background: var(--color-card);
  border-radius: var(--radius-md);
  padding: 24px;
  align-self: start;
}

.order-summary h3 {
  font-size: 15px;
  margin-bottom: 16px;
}

.order-summary-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
  max-height: 260px;
  overflow-y: auto;
}

.order-summary-item {
  display: flex;
  justify-content: space-between;
  font-size: 13.5px;
  gap: 12px;
}

.order-summary-item span:first-child {
  color: var(--color-secondary);
}

.order-summary-item span:last-child {
  color: var(--color-text-muted);
  white-space: nowrap;
}

.order-summary-total {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 17px;
  color: var(--color-secondary);
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  margin-bottom: 14px;
}

.order-summary-note {
  font-size: 12.5px;
  margin: 0;
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------
   16. ANIMATIONS
--------------------------------------------------------- */
[data-animate] {
  opacity: 0;
  transition: opacity 600ms ease, transform 600ms ease;
}

[data-animate="fade-up"] {
  transform: translateY(24px);
}

[data-animate="fade-in"] {
  transform: none;
}

[data-animate].is-visible {
  opacity: 1;
  transform: none;
}

body.no-scroll {
  overflow: hidden;
}

/* ---------------------------------------------------------
   17. RESPONSIVE
--------------------------------------------------------- */
@media (max-width: 1080px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer-top {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

@media (max-width: 960px) {
  :root {
    --section-padding: 72px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-media {
    order: -1;
  }

  .hero-image-placeholder {
    height: 280px;
  }

  .about-inner,
  .inquiry-inner,
  .contact-inner {
    grid-template-columns: 1fr;
  }

  .about-image-placeholder {
    height: 300px;
  }

  .checkout-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: 76px;
    right: 0;
    height: calc(100% - 76px);
    width: 280px;
    max-width: 82vw;
    background: #fff;
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform var(--transition);
    padding: 32px 28px;
    z-index: 450;
  }

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

  .nav-list {
    flex-direction: column;
    gap: 22px;
  }

  .nav-toggle {
    display: flex;
  }

  .header-cta {
    display: none;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

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

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 18px;
  }

  .product-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

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

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

  .footer-top {
    grid-template-columns: 1fr;
  }

  .cart-drawer {
    width: 100%;
    max-width: 100vw;
  }

  .checkout-body {
    padding: 24px 20px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
}