/* ==========================================================================
   AMAZON 2.0 PORTFOLIO CLONE - MAIN LAYOUT & NAVIGATION CSS
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.45;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

body.modal-open {
  overflow: hidden;
}

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

a:hover {
  color: var(--text-link-hover);
  text-decoration: underline;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

/* ==========================================================================
   GLOBAL NAVBAR
   ========================================================================== */

.nav-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background-color: var(--amz-dark);
  color: var(--text-white);
  box-shadow: var(--shadow-md);
}

.nav-top-bar {
  display: flex;
  align-items: center;
  height: var(--header-height);
  padding: 0 16px;
  gap: 12px;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Amazon Brand Logo */
.nav-logo-box {
  display: flex;
  align-items: center;
  padding: 6px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  transition: border-color var(--transition-fast);
  text-decoration: none;
  color: #ffffff;
}

.nav-logo-box:hover {
  border-color: #ffffff;
  text-decoration: none;
}

.nav-brand-logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1;
  display: flex;
  align-items: center;
}

.brand-dot-com {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--amz-gold);
  margin-top: -8px;
  margin-left: 1px;
}

.brand-prime-tag {
  font-size: 0.65rem;
  text-transform: uppercase;
  background: linear-gradient(135deg, #00a8e1, #007185);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  margin-left: 6px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* Delivery Location Button */
.nav-delivery-box {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  cursor: pointer;
  white-space: nowrap;
}

.nav-delivery-box:hover {
  border-color: #ffffff;
}

.nav-pin-icon {
  font-size: 1.25rem;
  margin-top: 4px;
}

.nav-delivery-text {
  display: flex;
  flex-direction: column;
}

.delivery-line-1 {
  font-size: 0.72rem;
  color: #cccccc;
  line-height: 1.1;
}

.delivery-line-2 {
  font-size: 0.85rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
}

/* Search Bar Container */
.nav-search-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  height: 42px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  box-shadow: 0 0 0 0 transparent;
  transition: box-shadow var(--transition-fast);
}

.nav-search-wrapper:focus-within {
  box-shadow: 0 0 0 3px var(--border-focus);
}

.nav-search-category {
  background-color: #e6e6e6;
  border: none;
  border-top-left-radius: var(--radius-sm);
  border-bottom-left-radius: var(--radius-sm);
  padding: 0 10px;
  font-size: 0.8rem;
  font-weight: 500;
  color: #333333;
  cursor: pointer;
  border-right: 1px solid #cdcdcd;
  outline: none;
  transition: background-color var(--transition-fast);
}

.nav-search-category:hover {
  background-color: #dadada;
}

.nav-search-input {
  flex: 1;
  border: none;
  padding: 0 12px;
  font-size: 0.95rem;
  color: #0f1111;
  outline: none;
  background: transparent;
}

.nav-search-submit {
  width: 46px;
  background-color: var(--amz-gold);
  border-top-right-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #111111;
  transition: background-color var(--transition-fast);
}

.nav-search-submit:hover {
  background-color: var(--amz-gold-hover);
}

.search-icon-svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Live Search Suggestions Dropdown */
.search-suggestions-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-top: none;
  border-bottom-left-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-height: 420px;
  overflow-y: auto;
  z-index: var(--z-overlay);
  display: none;
}

.search-suggestions-dropdown.is-open {
  display: block;
}

.search-suggestion-item {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  gap: 12px;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.search-suggestion-item:last-child {
  border-bottom: none;
}

.search-suggestion-item:hover {
  background-color: var(--bg-secondary);
}

.suggestion-thumb {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-light);
}

.suggestion-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.suggestion-title {
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.25;
}

.suggestion-title mark {
  background-color: rgba(254, 189, 105, 0.4);
  color: inherit;
  font-weight: 700;
  border-radius: 2px;
}

.suggestion-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  margin-top: 3px;
}

.suggestion-price {
  font-weight: 700;
  color: var(--amz-deal-badge);
}

.suggestion-cat {
  color: var(--text-muted);
}

.search-suggestion-empty {
  padding: 16px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

/* Nav Actions (Currency, Theme, Account, Orders, Cart) */
.nav-actions-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item-box {
  display: flex;
  flex-direction: column;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  color: #ffffff;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--transition-fast);
}

.nav-item-box:hover {
  border-color: #ffffff;
}

.nav-item-small {
  font-size: 0.72rem;
  color: #cccccc;
  line-height: 1.1;
}

.nav-item-bold {
  font-size: 0.85rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
}

/* Currency & Theme Buttons */
.nav-pill-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.nav-pill-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #ffffff;
}

.currency-select-inline {
  background: transparent;
  border: none;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.8rem;
  outline: none;
  cursor: pointer;
}

.currency-select-inline option {
  background: #131921;
  color: #ffffff;
}

/* Cart Button */
.nav-cart-box {
  display: flex;
  align-items: center;
  position: relative;
  padding: 6px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  color: #ffffff;
  cursor: pointer;
}

.nav-cart-box:hover {
  border-color: #ffffff;
}

.nav-cart-icon-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.cart-icon-svg {
  width: 38px;
  height: 30px;
  fill: currentColor;
}

.nav-cart-count {
  position: absolute;
  top: -2px;
  left: 17px;
  color: var(--amz-orange);
  font-weight: 800;
  font-size: 0.95rem;
  text-align: center;
  width: 18px;
  line-height: 1;
  transition: transform var(--transition-fast);
}

.cart-bounce {
  animation: cartJump 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes cartJump {
  0% { transform: scale(1); }
  50% { transform: scale(1.4); }
  100% { transform: scale(1); }
}

.nav-cart-label {
  font-size: 0.85rem;
  font-weight: 700;
  margin-left: 4px;
  margin-top: 8px;
}

/* ==========================================================================
   SUB-NAVBAR & DEPARTMENTS STRIP
   ========================================================================== */

.nav-sub-bar {
  background-color: var(--amz-nav-sub);
  color: #ffffff;
  display: flex;
  align-items: center;
  height: var(--subnav-height);
  padding: 0 16px;
  max-width: var(--max-width);
  margin: 0 auto;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}

.nav-sub-bar::-webkit-scrollbar {
  display: none;
}

.nav-sub-left {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
}

.nav-sub-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.nav-sub-item:hover {
  border-color: #ffffff;
  text-decoration: none;
  color: #ffffff;
}

.nav-sub-item.is-active {
  color: var(--amz-gold);
  font-weight: 700;
}

.hamburger-icon-lines {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 17px;
}

.hamburger-icon-lines span {
  display: block;
  height: 2px;
  background-color: #ffffff;
  border-radius: 1px;
}

.nav-sub-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.prime-special-banner {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--amz-gold);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(254, 189, 105, 0.12);
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   HERO CAROUSEL SECTION
   ========================================================================== */

.hero-section {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  overflow: hidden;
  height: 480px;
  background: #000000;
}

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

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  transform: scale(1.02);
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.hero-slide-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* Gradient overlay at bottom of hero fading into product cards */
.hero-gradient-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 17, 17, 0.1) 0%,
    rgba(15, 17, 17, 0.4) 40%,
    var(--bg-primary) 100%
  );
  pointer-events: none;
}

.hero-content {
  position: absolute;
  top: 15%;
  left: 6%;
  max-width: 580px;
  z-index: 2;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

.hero-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  background: var(--amz-orange);
  color: #ffffff;
  border-radius: var(--radius-xs);
  margin-bottom: 12px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 14px;
}

.hero-desc {
  font-size: 1.05rem;
  color: #f0f0f0;
  margin-bottom: 22px;
  line-height: 1.5;
}

.hero-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--amz-yellow), var(--amz-yellow-hover));
  color: #0f1111;
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-amber-glow);
  text-decoration: none;
  color: #0f1111;
}

/* Hero Navigation Arrows */
.hero-nav-btn {
  position: absolute;
  top: 35%;
  width: 48px;
  height: 80px;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  border-radius: var(--radius-xs);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.hero-nav-btn:hover {
  background: rgba(0, 0, 0, 0.7);
  transform: scale(1.05);
}

.hero-prev {
  left: 8px;
}

.hero-next {
  right: 8px;
}

.hero-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transition: all var(--transition-fast);
}

.hero-dot.is-active {
  width: 28px;
  border-radius: var(--radius-full);
  background: var(--amz-gold);
}

/* ==========================================
   FEATURE TILES OVERLAY (Amazon Quad Cards)
   ========================================== */

.hero-floating-tiles {
  position: relative;
  margin-top: -120px;
  z-index: 4;
  padding: 0 20px;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

.tiles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.tile-card {
  background: var(--bg-card);
  padding: 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  border: 1px solid var(--border-light);
}

.tile-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.tile-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
  font-family: var(--font-display);
}

.tile-media {
  flex: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 14px;
}

.tile-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.tile-card:hover .tile-img {
  transform: scale(1.04);
}

.tile-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-link);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================
   FOOTER
   ========================================== */

.site-footer {
  background-color: var(--amz-dark);
  color: #ffffff;
  margin-top: 60px;
}

.footer-back-to-top {
  width: 100%;
  background-color: var(--amz-light-dark);
  color: #ffffff;
  text-align: center;
  padding: 15px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background-color var(--transition-fast);
}

.footer-back-to-top:hover {
  background-color: #485769;
}

.footer-links-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: #ffffff;
}

.footer-link-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link-list a {
  color: #dddddd;
  font-size: 0.85rem;
}

.footer-link-list a:hover {
  color: #ffffff;
}

.footer-bottom-bar {
  border-top: 1px solid #3a4553;
  padding: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: #999999;
}

.footer-freelancer-note {
  margin-top: 8px;
  color: var(--amz-gold);
  font-weight: 600;
}