/* 
  TEKZIVO PREMIUM DESIGN SYSTEM — MOBILE OPTIMIZED
  Modern, high-performance styling for door-step electronics repair booking.
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  /* HSL Color System */
  --primary-h: 224;
  --primary-s: 64%;
  --primary-l: 33%;
  
  --primary: hsl(var(--primary-h), var(--primary-s), var(--primary-l));
  --primary-light: hsl(221, 83%, 53%);
  --primary-hover: hsl(221, 83%, 43%);
  --secondary: hsl(38, 92%, 50%);
  --secondary-hover: hsl(38, 92%, 40%);
  --bg-light: hsl(210, 40%, 98%);
  --white: hsl(0, 0%, 100%);
  --text-main: hsl(222, 47%, 11%);
  --text-muted: hsl(215, 16%, 47%);
  --border-color: hsl(214, 32%, 91%);
  
  /* Status Colors */
  --success: hsl(150, 84%, 37%);
  --success-bg: hsl(150, 84%, 96%);
  --danger: hsl(350, 89%, 60%);
  --danger-bg: hsl(350, 89%, 97%);
  
  /* Fonts */
  --font-title: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.06), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 24px 36px -6px rgba(15, 23, 42, 0.1), 0 8px 16px -4px rgba(15, 23, 42, 0.06);
  
  /* Border Radius */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  /* Transition speed */
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.5;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top Bar */
.top-bar {
  background-color: hsl(222, 47%, 8%);
  color: hsl(215, 20%, 80%);
  padding: 8px 0;
  font-size: 12px;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.top-bar a {
  color: hsl(215, 16%, 70%);
  margin: 0 6px;
}
.top-bar a:hover {
  color: var(--white);
}
.top-bar span {
  display: inline-flex;
  align-items: center;
}

/* Header */
.header-main {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 14px 0;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 999;
  border-bottom: 1px solid var(--border-color);
}
.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.6px;
  display: flex;
  align-items: center;
}
.logo-img {
  height: 36px;
  width: auto;
  margin-right: 10px;
  object-fit: contain;
  transition: var(--transition);
}
.logo:hover .logo-img {
  transform: scale(1.08) rotate(-4deg);
}
.logo span {
  color: var(--secondary);
}

/* Search Bar */
.search-bar {
  flex: 1;
  max-width: 560px;
  display: flex;
  background-color: hsl(210, 40%, 95%);
  border-radius: 50px;
  padding: 3px;
  transition: var(--transition);
  border: 1px solid transparent;
}
.search-bar:focus-within {
  background-color: var(--white);
  border-color: var(--primary-light);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}
.search-bar input {
  flex: 1;
  padding: 8px 16px;
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  font-family: inherit;
  color: var(--text-main);
}
.search-bar input::placeholder {
  color: var(--text-muted);
}
.search-bar button {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-hover) 100%);
  color: var(--white);
  border: none;
  padding: 0 22px;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 700;
  font-family: var(--font-title);
  font-size: 13px;
  letter-spacing: 0.3px;
  transition: var(--transition);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.15);
}
.search-bar button:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

/* Header Actions */
.header-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}
.cart-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-family: var(--font-title);
  font-size: 14px;
  color: var(--primary-light);
  background: rgba(37, 99, 235, 0.05);
  padding: 8px 16px;
  border-radius: 50px;
  transition: var(--transition);
}
.cart-btn:hover {
  background: var(--primary-light);
  color: var(--white);
}
.cart-icon {
  font-size: 18px;
}
.cart-btn:hover .cart-icon {
  filter: brightness(0) invert(1);
}

/* Mobile Horizontal Category Scroller */
.mobile-category-scroll {
  display: none;
  overflow-x: auto;
  white-space: nowrap;
  padding: 12px 24px;
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  gap: 8px;
  -webkit-overflow-scrolling: touch;
}
.mobile-category-scroll::-webkit-scrollbar {
  display: none;
}
.category-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: hsl(210, 40%, 95%);
  border-radius: 50px;
  color: var(--text-main);
  font-weight: 600;
  font-size: 13px;
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: pointer;
  user-select: none;
}
.category-chip.active {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  color: var(--white);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.15);
}

/* Main Navigation */
.main-nav {
  background-color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
}
.main-nav li a {
  display: block;
  padding: 12px 18px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
  font-family: var(--font-title);
  font-size: 14px;
  transition: var(--transition);
  position: relative;
}
.main-nav li a:hover, .main-nav li a.active {
  color: var(--white);
  background-color: rgba(255, 255, 255, 0.06);
}
.main-nav li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background-color: var(--secondary);
  transition: var(--transition);
  transform: translateX(-50%);
}
.main-nav li a:hover::after, .main-nav li a.active::after {
  width: 60%;
}

/* Layout Wrapper Grid */
.layout-wrapper {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 28px;
  margin-top: 28px;
  margin-bottom: 56px;
}

/* Sidebar Styling */
.sidebar {
  position: sticky;
  top: 95px;
  height: fit-content;
}
.category-menu {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.category-menu h3 {
  background: hsl(222, 47%, 8%);
  color: var(--white);
  padding: 14px 18px;
  font-size: 14px;
  font-family: var(--font-title);
  font-weight: 700;
  letter-spacing: 0.3px;
}
.category-menu ul {
  list-style: none;
}
.category-menu li {
  border-bottom: 1px solid var(--border-color);
}
.category-menu li:last-child {
  border-bottom: none;
}
.category-menu li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  color: var(--text-main);
  font-weight: 600;
  font-size: 13.5px;
  transition: var(--transition);
}
.category-menu li a:hover, .category-menu li a.active {
  background: hsl(210, 40%, 97%);
  color: var(--primary-light);
  padding-left: 24px;
}

/* Hero Banner Section */
.banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, #4f46e5 100%);
  color: white;
  padding: 38px 36px;
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.banner::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 220px;
  height: 220px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  pointer-events: none;
}
.banner::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 260px;
  height: 260px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 50%;
  pointer-events: none;
}
.banner h2 {
  font-family: var(--font-title);
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.4px;
  line-height: 1.2;
}
.banner p {
  font-size: 15px;
  opacity: 0.88;
  margin-bottom: 22px;
  max-width: 580px;
}

/* Trust Badges Grid */
.banner-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: relative;
  z-index: 2;
}
.banner-badge {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Section Title */
.section-title {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
  padding-bottom: 8px;
  position: relative;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary));
  border-radius: 3px;
}

/* Product Cards Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-light), var(--secondary));
  opacity: 0;
  transition: var(--transition);
}
.product-card:hover::before {
  opacity: 1;
}

.product-img {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, hsl(210, 40%, 95%) 0%, hsl(210, 40%, 90%) 100%);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  border-radius: 50%;
  border: 4px solid var(--white);
  box-shadow: 0 3px 8px rgba(15, 23, 42, 0.02);
  transition: var(--transition);
}
.product-card:hover .product-img {
  transform: scale(1.06) rotate(4deg);
  background: linear-gradient(135deg, rgba(37,99,235,0.05) 0%, rgba(37,99,235,0.1) 100%);
}

.product-title {
  font-family: var(--font-title);
  font-size: 14.5px;
  font-weight: 600;
  margin-bottom: 6px;
  height: 40px;
  overflow: hidden;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.35;
}

.product-price {
  font-family: var(--font-title);
  font-size: 18px;
  color: var(--primary-light);
  font-weight: 700;
  margin-bottom: 14px;
}
.product-price::before {
  content: 'Starts at ';
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  display: block;
}

/* Buttons */
.btn-add {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-hover) 100%);
  color: var(--white);
  border: none;
  padding: 10px;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 700;
  font-family: var(--font-title);
  font-size: 13px;
  letter-spacing: 0.3px;
  margin-top: auto;
  transition: var(--transition);
  box-shadow: 0 3px 8px rgba(245, 158, 11, 0.15);
}
.btn-add:hover {
  background: linear-gradient(135deg, var(--secondary-hover) 0%, hsl(38, 92%, 30%) 100%);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

/* Footer Section */
.footer {
  background: hsl(222, 47%, 8%);
  color: hsl(215, 16%, 70%);
  padding: 50px 0 25px;
  margin-top: 50px;
  border-top: 4px solid var(--primary-light);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.footer h4 {
  color: var(--white);
  margin-bottom: 16px;
  font-family: var(--font-title);
  font-size: 15px;
  font-weight: 600;
  position: relative;
  padding-bottom: 6px;
}
.footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--secondary);
}
.footer ul {
  list-style: none;
}
.footer ul li {
  margin-bottom: 10px;
}
.footer ul li a {
  color: hsl(215, 16%, 70%);
  font-size: 13.5px;
}
.footer ul li a:hover {
  color: var(--white);
  padding-left: 3px;
}
#footer-contact-block p {
  font-size: 13px;
  line-height: 1.7;
}
.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 12px;
  color: hsl(215, 16%, 50%);
}

/* Modal Overlay base */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.modal-overlay.active {
  display: flex;
  opacity: 1;
}

/* Modal Content (Desktop layout) */
.modal-content {
  background: var(--white);
  width: 90%;
  max-width: 520px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  flex-direction: column;
}
.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-handle {
  display: none; /* Only visible on mobile sheets */
}

.modal-header {
  background: hsl(210, 40%, 98%);
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-header h3 {
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
}
.close-modal {
  background: rgba(15, 23, 42, 0.04);
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.close-modal:hover {
  background: rgba(239, 68, 68, 0.08);
  color: var(--danger);
}
.modal-body {
  padding: 20px;
  max-height: 75vh;
  overflow-y: auto;
}

/* Form Styles */
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-main);
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 13.5px;
  background-color: hsl(210, 40%, 98%);
  color: var(--text-main);
  transition: var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--primary-light);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.form-control:disabled {
  background-color: hsl(210, 20%, 90%);
  color: hsl(210, 10%, 60%);
  cursor: not-allowed;
}
.form-row {
  display: flex;
  gap: 16px;
}
.form-row .form-group {
  flex: 1;
}

.btn-submit {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-hover) 100%);
  color: white;
  border: none;
  width: 100%;
  padding: 12px;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-title);
  border-radius: 50px;
  cursor: pointer;
  margin-top: 10px;
  transition: var(--transition);
  box-shadow: 0 3px 8px rgba(37, 99, 235, 0.15);
}
.btn-submit:hover {
  background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
}
.btn-submit:disabled {
  background: hsl(210, 20%, 85%);
  cursor: not-allowed;
  box-shadow: none;
}

/* Checkout Summary Section */
.checkout-summary {
  background: rgba(37, 99, 235, 0.02);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  border: 1px solid rgba(37, 99, 235, 0.08);
}
.checkout-summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}
.checkout-summary-item span:first-child {
  font-weight: 700;
  color: var(--text-main);
  font-size: 14.5px;
}
.checkout-summary-item span:last-child {
  color: var(--text-muted);
  font-size: 13px;
}
.checkout-summary-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  font-size: 18px;
  border-top: 1px dashed rgba(37, 99, 235, 0.15);
  padding-top: 10px;
  margin-top: 10px;
  color: var(--primary-light);
}

/* Success View inside Modal */
.success-msg {
  text-align: center;
  padding: 30px 15px;
}
.success-icon {
  font-size: 52px;
  color: var(--success);
  margin-bottom: 12px;
  display: inline-block;
  width: 80px;
  height: 80px;
  line-height: 80px;
  background-color: var(--success-bg);
  border-radius: 50%;
  box-shadow: 0 6px 15px rgba(16, 185, 129, 0.1);
}
.ref-code-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 16px 0;
}
.ref-code {
  font-size: 22px;
  font-family: var(--font-title);
  font-weight: 800;
  color: var(--primary);
  background: #eff6ff;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 2px dashed rgba(37, 99, 235, 0.2);
  display: inline-block;
}
.btn-copy {
  background: var(--white);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
}
.btn-copy:hover {
  background: #f1f5f9;
  color: var(--text-main);
  border-color: #cbd5e1;
}

/* Toast Messages */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: hsl(222, 47%, 8%);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  z-index: 100000;
  display: flex;
  align-items: center;
  gap: 8px;
  transform: translateY(80px) scale(0.9);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  font-weight: 600;
  font-size: 13.5px;
}
.toast.active {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* Confirm Action Dialog overlay */
.confirm-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 20000;
}
.confirm-overlay.active {
  display: flex;
}
.confirm-box {
  background: white;
  padding: 28px 20px;
  border-radius: var(--radius-md);
  width: 90%;
  max-width: 380px;
  box-shadow: var(--shadow-xl);
  text-align: center;
}
.confirm-title {
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}
.confirm-message {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 14px;
}
.confirm-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
}
.btn-confirm-yes {
  background: var(--danger);
  color: white;
  border: none;
  padding: 8px 18px;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 700;
  transition: var(--transition);
}
.btn-confirm-yes:hover {
  background: #dc2626;
}
.btn-confirm-no {
  background: #f1f5f9;
  color: var(--text-main);
  border: none;
  padding: 8px 18px;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 700;
  transition: var(--transition);
}
.btn-confirm-no:hover {
  background: #e2e8f0;
}

/* Animation Keyframes */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsiveness adjustments */
@media (max-width: 991px) {
  .layout-wrapper {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 16px;
  }
  .sidebar {
    display: none; /* Hide vertical category sidebar */
  }
  .mobile-category-scroll {
    display: flex; /* Show horizontal chips menu */
  }
  .main-nav {
    display: none; /* Hide main navbar tab as scroller chips cover categories */
  }
}

@media (max-width: 768px) {
  .header-main .container {
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
  }
  .logo {
    justify-content: center;
  }
  .top-bar .container {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  .banner {
    padding: 28px 20px;
    text-align: center;
  }
  .banner h2 {
    font-size: 22px;
  }
  .banner-badges {
    justify-content: center;
  }
  
  /* Modern 2-column e-commerce grid on mobile devices */
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .product-card {
    padding: 12px;
    border-radius: var(--radius-sm);
  }
  .product-img {
    width: 56px;
    height: 56px;
    font-size: 24px;
    margin-bottom: 10px;
  }
  .product-title {
    font-size: 13px;
    height: 36px;
    margin-bottom: 4px;
    line-height: 1.35;
  }
  .product-price {
    font-size: 15px;
    margin-bottom: 10px;
  }
  .product-price::before {
    font-size: 9px;
    margin-bottom: 0px;
  }
  .btn-add {
    font-size: 11px;
    padding: 8px;
    box-shadow: none;
  }
}

/* Mobile Bottom Sheet Drawer Layout for screen widths <= 576px */
@media (max-width: 576px) {
  .modal-overlay {
    align-items: flex-end; /* Align sheet to bottom of screen */
  }
  .modal-content {
    width: 100%;
    max-width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    max-height: 90vh; /* Don't cover entire viewport */
  }
  
  .modal-overlay.active .modal-content {
    transform: translateY(0);
  }
  
  .modal-handle {
    display: block;
    width: 44px;
    height: 5px;
    background: hsl(210, 16%, 80%);
    border-radius: 10px;
    margin: 8px auto 0;
  }
  
  .modal-header {
    background: var(--white);
    padding: 12px 20px 10px 20px;
    border-bottom: 1px solid var(--border-color);
  }
  
  .modal-body {
    padding: 16px 20px 30px 20px; /* Safe padding at bottom */
    flex: 1;
    overflow-y: auto;
  }
  
  .form-group {
    margin-bottom: 14px;
  }
  
  .form-group label {
    font-size: 12.5px;
  }
  
  .form-control {
    padding: 9px 12px;
    font-size: 13px;
  }
  
  .btn-submit {
    padding: 11px;
    font-size: 14px;
  }
  
  .checkout-summary {
    padding: 12px;
    margin-bottom: 16px;
  }
  
  .checkout-summary-total {
    font-size: 16px;
}

/* File Upload Component */
.upload-container {
  margin-top: 6px;
}
.upload-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-upload-trigger {
  background-color: hsl(210, 40%, 96%);
  border: 1px dashed var(--primary-light);
  color: var(--primary-light);
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 50px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.btn-upload-trigger:hover {
  background-color: rgba(37, 99, 235, 0.08);
  border-color: var(--primary-hover);
  color: var(--primary-hover);
}
.upload-preview-compact {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 50px;
  box-shadow: var(--shadow-sm);
  min-width: 0;
  max-width: 220px;
  animation: fadeInUp 0.2s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.upload-preview-compact img {
  width: 28px;
  height: 28px;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--border-color);
}
.upload-file-name-compact {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.btn-remove-compact {
  background: hsl(350, 89%, 97%);
  border: none;
  color: var(--danger);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  font-weight: bold;
  transition: var(--transition);
  flex-shrink: 0;
}
.btn-remove-compact:hover {
  background: var(--danger);
  color: var(--white);
}