/* ============================================================
   GethRu E-Commerce - Main Stylesheet
   Brand: Blue #1A3A6B | Red #D4162A | Black #111 | White #FFF
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --blue:        #1A3A6B;
  --blue-light:  #2554A0;
  --blue-dark:   #0F2347;
  --red:         #D4162A;
  --red-light:   #F03245;
  --red-dark:    #A51020;
  --black:       #111111;
  --gray-dark:   #2B2B2B;
  --gray:        #555555;
  --gray-mid:    #888888;
  --gray-light:  #CCCCCC;
  --gray-pale:   #F4F5F7;
  --white:       #FFFFFF;
  --shadow:      0 4px 18px rgba(0,0,0,0.10);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.16);
  --radius:      10px;
  --radius-sm:   6px;
  --transition:  0.25s ease;
  --font-main:   'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); color: var(--black); background: var(--white); font-size: 15px; line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
input, textarea, select { font-family: inherit; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ---------- Utility ---------- */
.container { width: 100%; max-width: 1300px; margin: 0 auto; padding: 0 20px; }
.section-title { font-size: 1.7rem; font-weight: 800; color: var(--blue-dark); margin-bottom: 6px; letter-spacing: -0.5px; }
.section-subtitle { color: var(--gray); font-size: 0.95rem; margin-bottom: 28px; }
.section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 24px; }
.badge { display: inline-block; font-size: 0.72rem; font-weight: 700; padding: 3px 9px; border-radius: 20px; text-transform: uppercase; letter-spacing: 0.5px; }
.badge-red   { background: var(--red); color: var(--white); }
.badge-blue  { background: var(--blue); color: var(--white); }
.badge-promo { background: linear-gradient(135deg,var(--red),var(--red-dark)); color: var(--white); }
.text-red { color: var(--red); }
.text-blue { color: var(--blue); }
.text-gray { color: var(--gray); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.w-100 { width: 100%; }
.text-center { text-align: center; }
.hidden { display: none !important; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 22px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; transition: all var(--transition);
  border: 2px solid transparent; cursor: pointer;
}
.btn-primary   { background: var(--blue); color: var(--white); border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn-red       { background: var(--red); color: var(--white); border-color: var(--red); }
.btn-red:hover { background: var(--red-dark); border-color: var(--red-dark); }
.btn-outline   { background: transparent; color: var(--blue); border-color: var(--blue); }
.btn-outline:hover { background: var(--blue); color: var(--white); }
.btn-outline-white { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.6); }
.btn-outline-white:hover { background: rgba(255,255,255,0.12); }
.btn-sm { padding: 7px 16px; font-size: 0.82rem; }
.btn-lg { padding: 13px 32px; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-icon { width: 38px; height: 38px; padding: 0; border-radius: 50%; }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 0.88rem; font-weight: 600; color: var(--gray-dark); margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 10px 14px; border: 2px solid var(--gray-light);
  border-radius: var(--radius-sm); font-size: 0.92rem; color: var(--black);
  background: var(--white); transition: border-color var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--blue-light); }
.form-control.is-invalid { border-color: var(--red); }
.form-error { font-size: 0.8rem; color: var(--red); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
textarea.form-control { resize: vertical; min-height: 110px; }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23555' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }

/* ---------- Alerts ---------- */
.alert { padding: 12px 18px; border-radius: var(--radius-sm); font-size: 0.9rem; margin-bottom: 16px; }
.alert-success { background: #e6f4ea; color: #1e6b2e; border-left: 4px solid #34a853; }
.alert-error   { background: #fce8ea; color: #a51020; border-left: 4px solid var(--red); }
.alert-info    { background: #e8f0fe; color: var(--blue-dark); border-left: 4px solid var(--blue); }

/* ---------- TOP HEADER BAR ---------- */
.top-bar {
  background: var(--blue-dark);
  color: rgba(255,255,255,0.75);
  font-size: 0.8rem;
  padding: 6px 0;
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: rgba(255,255,255,0.75); }
.top-bar a:hover { color: var(--white); }

/* ---------- NAVBAR ---------- */
.navbar {
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.09);
  position: sticky; top: 0; z-index: 1000;
  transition: box-shadow 0.3s;
}
.navbar .container { display: flex; align-items: center; gap: 20px; height: 68px; }
.navbar-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.navbar-logo { width: 40px; height: 40px; }
.navbar-name { font-size: 1.5rem; font-weight: 900; letter-spacing: -1px; color: var(--blue-dark); }
.navbar-name span { color: var(--red); }

.navbar-menu { display: flex; align-items: center; gap: 4px; flex: 1; }
.navbar-menu a {
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; color: var(--gray-dark);
  transition: all var(--transition); white-space: nowrap;
}
.navbar-menu a:hover, .navbar-menu a.active { background: var(--gray-pale); color: var(--blue); }

/* Search bar in nav */
.navbar-search { flex: 1; max-width: 440px; }
.navbar-search-inner { display: flex; align-items: center; border: 2px solid var(--gray-light); border-radius: 25px; overflow: hidden; background: var(--gray-pale); transition: border-color var(--transition); }
.navbar-search-inner:focus-within { border-color: var(--blue-light); background: var(--white); }
.navbar-search input { flex: 1; border: none; background: transparent; padding: 9px 16px; font-size: 0.9rem; outline: none; }
.navbar-search button { padding: 9px 18px; background: var(--blue); color: var(--white); font-size: 0.85rem; font-weight: 600; border: none; cursor: pointer; transition: background var(--transition); }
.navbar-search button:hover { background: var(--blue-dark); }

/* Nav actions */
.navbar-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.nav-icon-btn { position: relative; display: flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 50%; transition: background var(--transition); color: var(--gray-dark); }
.nav-icon-btn:hover { background: var(--gray-pale); color: var(--blue); }
.nav-icon-btn svg { width: 22px; height: 22px; }
.cart-badge {
  position: absolute; top: 2px; right: 2px;
  background: var(--red); color: var(--white); font-size: 0.65rem; font-weight: 700;
  width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.nav-profile-pic { width: 36px; height: 36px; border-radius: 50%; border: 2px solid var(--blue-light); object-fit: cover; }
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  display: none; position: absolute; right: 0; top: calc(100% + 10px);
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  min-width: 180px; overflow: hidden; border: 1px solid var(--gray-light);
}
.nav-dropdown:hover .nav-dropdown-menu, .nav-dropdown.open .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a { display: block; padding: 11px 18px; font-size: 0.88rem; color: var(--gray-dark); transition: background var(--transition); }
.nav-dropdown-menu a:hover { background: var(--gray-pale); color: var(--blue); }
.nav-dropdown-menu .divider { height: 1px; background: var(--gray-light); margin: 4px 0; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; width: 28px; cursor: pointer; }
.hamburger span { height: 3px; background: var(--gray-dark); border-radius: 2px; transition: all 0.3s; }

/* ---------- SEARCH PANEL (expandable) ---------- */
.search-panel {
  background: var(--blue-dark);
  padding: 20px 0;
  display: none;
  border-bottom: 3px solid var(--red);
}
.search-panel.open { display: block; }
.search-panel-inner { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.search-panel .form-label { color: rgba(255,255,255,0.8); }
.search-panel .form-control { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.25); color: var(--white); }
.search-panel .form-control::placeholder { color: rgba(255,255,255,0.5); }
.search-panel .form-control:focus { border-color: rgba(255,255,255,0.7); background: rgba(255,255,255,0.15); }
.search-field-main { flex: 2; min-width: 200px; }
.search-field-price { flex: 1; min-width: 130px; }

/* ---------- HERO / PROMOTIONAL SECTION ---------- */
.section-promo { padding: 56px 0 40px; background: var(--gray-pale); }
.promo-slider-wrap { position: relative; }
.promo-slider-outer { overflow: hidden; }
.promo-slider-track { display: flex; gap: 20px; transition: transform 0.45s cubic-bezier(.4,0,.2,1); will-change: transform; }

/* Promo product card */
.promo-card {
  min-width: 300px; max-width: 300px;
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden; flex-shrink: 0;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.promo-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.promo-card-images {
  position: relative; height: 220px; overflow: hidden; background: var(--gray-pale);
  cursor: pointer;
}
.promo-card-images img {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0; transition: opacity 0.4s ease;
}
.promo-card-images img.active { opacity: 1; }
.promo-card-images .promo-badge {
  position: absolute; top: 12px; left: 12px; z-index: 2;
}
.promo-timer {
  position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%);
  background: rgba(0,0,0,0.7); color: var(--white); font-size: 0.72rem;
  padding: 4px 10px; border-radius: 20px; white-space: nowrap; z-index: 2;
}
.promo-card-body { padding: 16px 18px; }
.promo-card-name { font-size: 0.95rem; font-weight: 700; color: var(--gray-dark); margin-bottom: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.promo-prices { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.price-old { font-size: 0.88rem; color: var(--gray-mid); text-decoration: line-through; }
.price-new { font-size: 1.2rem; font-weight: 800; color: var(--red); }
.price-regular { font-size: 1.2rem; font-weight: 800; color: var(--blue-dark); }
.promo-card-btns { display: flex; gap: 8px; }
.promo-card-btns .btn { flex: 1; font-size: 0.82rem; padding: 9px 8px; }

/* Slider nav buttons */
.slider-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--white); box-shadow: var(--shadow);
  border: 2px solid var(--gray-light); display: flex; align-items: center; justify-content: center;
  cursor: pointer; z-index: 10; transition: all var(--transition); color: var(--blue);
}
.slider-btn:hover { background: var(--blue); color: var(--white); border-color: var(--blue); }
.slider-btn.prev { left: 0px; }
.slider-btn.next { right: 3px; }
.slider-btn svg { width: 18px; height: 18px; }

/* ---------- SHOWCASE SECTION ---------- */
.section-showcase { padding: 56px 0; background: var(--white); }
.showcase-slider-track { display: flex; gap: 16px; transition: transform 0.45s cubic-bezier(.4,0,.2,1); }

/* Showcase card — half size */
.showcase-card {
  min-width: 200px; max-width: 200px;
  background: var(--white); border-radius: var(--radius); border: 1.5px solid var(--gray-light);
  overflow: hidden; flex-shrink: 0;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  cursor: pointer;
}
.showcase-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--blue-light); }
.showcase-card-images { position: relative; height: 150px; background: var(--gray-pale); overflow: hidden; }
.showcase-card-images img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 0.35s ease; }
.showcase-card-images img.active { opacity: 1; }
.showcase-card-body { padding: 12px 14px; }
.showcase-card-name { font-size: 0.85rem; font-weight: 700; color: var(--gray-dark); margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.showcase-card .price-regular { font-size: 1rem; }
.showcase-card-btns { display: flex; gap: 6px; margin-top: 10px; }
.showcase-card-btns .btn { flex: 1; font-size: 0.75rem; padding: 7px 4px; }

/* ---------- FEEDBACK SECTION ---------- */
.section-feedback { padding: 56px 0; background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 100%); }
.section-feedback .section-title { color: var(--white); }
.section-feedback .section-subtitle { color: rgba(255,255,255,0.7); }
.feedback-slider-outer { overflow: hidden; }
.feedback-slider-track { display: flex; gap: 20px; transition: transform 0.45s cubic-bezier(.4,0,.2,1); }
.feedback-card {
  min-width: 300px; max-width: 300px; flex-shrink: 0;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius); padding: 24px 22px;
  backdrop-filter: blur(4px);
}
.feedback-card-header { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.feedback-profile-pic { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; border: 3px solid rgba(255,255,255,0.3); flex-shrink: 0; }
.feedback-name { font-weight: 700; color: var(--white); font-size: 0.95rem; }
.feedback-country { font-size: 0.78rem; color: rgba(255,255,255,0.6); margin-top: 2px; }
.stars { display: flex; gap: 3px; margin-bottom: 12px; }
.star { font-size: 1rem; color: rgba(255,255,255,0.25); }
.star.filled { color: #FFD600; }
.feedback-text { font-size: 0.88rem; color: rgba(255,255,255,0.85); line-height: 1.65; font-style: italic; }
.feedback-dots { display: flex; gap: 8px; justify-content: center; margin-top: 20px; }
.feedback-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.3); cursor: pointer; transition: background var(--transition); }
.feedback-dot.active { background: var(--white); }

/* ---------- CONTACT SECTION ---------- */
.section-contact { padding: 56px 0; background: var(--gray-pale); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info h3 { font-size: 1.3rem; font-weight: 800; color: var(--blue-dark); margin-bottom: 16px; }
.contact-info p { color: var(--gray); margin-bottom: 20px; }
.contact-info-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; }
.contact-info-item svg { color: var(--red); flex-shrink: 0; margin-top: 2px; }
.contact-form-card { background: var(--white); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.contact-form-card h3 { font-size: 1.15rem; font-weight: 800; color: var(--blue-dark); margin-bottom: 20px; }

/* ---------- FOOTER ---------- */
.footer { background: var(--black); color: rgba(255,255,255,0.7); padding: 48px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer-brand { }
.footer-brand .navbar-name { color: var(--white); margin-bottom: 14px; display: block; font-size: 1.8rem; }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; color: rgba(255,255,255,0.55); }
.footer-col h4 { font-size: 0.9rem; font-weight: 700; color: var(--white); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.8px; }
.footer-col a { display: block; font-size: 0.86rem; color: rgba(255,255,255,0.55); padding: 3px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; }

/* ---------- PRODUCT DETAIL PAGE ---------- */
.product-detail { padding: 48px 0; }
.product-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.product-gallery { }
.product-gallery-main { border-radius: var(--radius); overflow: hidden; background: var(--gray-pale); height: 400px; position: relative; }
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; opacity: 0; position: absolute; top: 0; left: 0; transition: opacity 0.4s; }
.product-gallery-main img.active { opacity: 1; }
.product-gallery-thumbs { display: flex; gap: 10px; margin-top: 12px; }
.product-gallery-thumbs img { width: 80px; height: 80px; object-fit: cover; border-radius: var(--radius-sm); cursor: pointer; border: 2px solid var(--gray-light); transition: border-color var(--transition); }
.product-gallery-thumbs img.active, .product-gallery-thumbs img:hover { border-color: var(--blue); }
.product-info h1 { font-size: 1.7rem; font-weight: 800; color: var(--gray-dark); margin-bottom: 8px; }
.product-info .product-code { font-size: 0.82rem; color: var(--gray-mid); margin-bottom: 16px; }
.product-price-block { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.product-price-block .price-new { font-size: 1.8rem; }
.product-price-block .price-regular { font-size: 1.8rem; }
.product-price-block .price-old { font-size: 1.1rem; }
.discount-badge { background: var(--red); color: var(--white); font-size: 0.82rem; font-weight: 700; padding: 4px 10px; border-radius: 20px; }
.product-description { color: var(--gray); line-height: 1.75; margin-bottom: 24px; font-size: 0.95rem; }
.product-action-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.qty-picker { display: flex; align-items: center; gap: 0; border: 2px solid var(--gray-light); border-radius: var(--radius-sm); overflow: hidden; }
.qty-picker button { width: 36px; height: 36px; background: var(--gray-pale); font-size: 1.2rem; font-weight: 700; transition: background var(--transition); color: var(--blue); }
.qty-picker button:hover { background: var(--blue); color: var(--white); }
.qty-picker input { width: 52px; height: 36px; text-align: center; border: none; outline: none; font-size: 1rem; font-weight: 600; border-left: 2px solid var(--gray-light); border-right: 2px solid var(--gray-light); }

/* ---------- CART PAGE ---------- */
.cart-page { padding: 48px 0; }
.cart-grid { display: grid; grid-template-columns: 1fr 360px; gap: 32px; align-items: start; }
.cart-items-table { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th { background: var(--blue-dark); color: var(--white); padding: 13px 18px; text-align: left; font-size: 0.85rem; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; }
.cart-table td { padding: 14px 18px; border-bottom: 1px solid var(--gray-pale); vertical-align: middle; font-size: 0.9rem; }
.cart-table tbody tr:last-child td { border-bottom: none; }
.cart-table tbody tr:hover { background: var(--gray-pale); }
.cart-product-cell { display: flex; align-items: center; gap: 14px; }
.cart-product-img { width: 64px; height: 64px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--gray-light); }
.cart-product-name { font-weight: 600; color: var(--gray-dark); }
.cart-product-code { font-size: 0.78rem; color: var(--gray-mid); }
.cart-summary { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.cart-summary h3 { font-size: 1.1rem; font-weight: 800; color: var(--blue-dark); margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--gray-pale); }
.summary-row { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; font-size: 0.92rem; }
.summary-row.total { font-size: 1.1rem; font-weight: 800; color: var(--blue-dark); padding-top: 12px; border-top: 2px solid var(--gray-pale); margin-top: 6px; }
.empty-cart { text-align: center; padding: 64px 24px; }
.empty-cart svg { color: var(--gray-light); margin: 0 auto 16px; }
.empty-cart h3 { font-size: 1.2rem; color: var(--gray); margin-bottom: 8px; }

/* ---------- AUTH PAGES ---------- */
.auth-page { min-height: 80vh; display: flex; align-items: center; justify-content: center; background: var(--gray-pale); padding: 48px 20px; }
.auth-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 40px 44px; width: 100%; max-width: 520px; }
.auth-card h2 { font-size: 1.7rem; font-weight: 900; color: var(--blue-dark); margin-bottom: 6px; }
.auth-card p.subtitle { color: var(--gray); margin-bottom: 28px; font-size: 0.9rem; }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--gray-mid); font-size: 0.85rem; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--gray-light); }
.auth-switch { text-align: center; font-size: 0.88rem; color: var(--gray); margin-top: 18px; }
.auth-switch a { color: var(--blue); font-weight: 700; }

/* ---------- ADMIN / MANAGEMENT PAGES ---------- */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 240px; flex-shrink: 0;
  background: var(--blue-dark);
  color: var(--white);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; height: 100vh;
  overflow-y: auto;
  z-index: 900;
}
.admin-sidebar-logo { padding: 22px 20px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.admin-sidebar-logo .navbar-name { color: var(--white); font-size: 1.3rem; }
.admin-nav { flex: 1; padding: 16px 0; }
.admin-nav-item { display: flex; align-items: center; gap: 12px; padding: 12px 20px; font-size: 0.9rem; color: rgba(255,255,255,0.7); transition: all var(--transition); cursor: pointer; }
.admin-nav-item:hover, .admin-nav-item.active { background: rgba(255,255,255,0.1); color: var(--white); border-left: 3px solid var(--red); padding-left: 17px; }
.admin-nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.admin-main { margin-left: 240px; flex: 1; background: var(--gray-pale); min-height: 100vh; }
.admin-topbar { background: var(--white); padding: 16px 28px; box-shadow: 0 1px 6px rgba(0,0,0,0.07); display: flex; align-items: center; justify-content: space-between; }
.admin-topbar h1 { font-size: 1.2rem; font-weight: 800; color: var(--blue-dark); }
.admin-content { padding: 28px; }

/* Admin Table */
.admin-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; margin-bottom: 24px; }
.admin-card-header { padding: 18px 22px; border-bottom: 2px solid var(--gray-pale); display: flex; align-items: center; justify-content: space-between; }
.admin-card-header h3 { font-size: 1rem; font-weight: 800; color: var(--blue-dark); }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th { background: var(--gray-pale); padding: 12px 16px; text-align: left; font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--gray); border-bottom: 2px solid var(--gray-light); }
.admin-table td { padding: 12px 16px; border-bottom: 1px solid var(--gray-pale); font-size: 0.88rem; vertical-align: middle; }
.admin-table tbody tr:hover { background: #f8f9ff; }
.admin-table .product-img { width: 50px; height: 50px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--gray-light); }
.admin-table .customer-img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; border: 2px solid var(--blue-light); }
.status-badge { display: inline-block; font-size: 0.72rem; font-weight: 700; padding: 3px 9px; border-radius: 20px; text-transform: uppercase; }
.status-active  { background: #e6f4ea; color: #1e6b2e; }
.status-hidden  { background: #fff3e0; color: #b55a00; }
.status-sold    { background: #fce8ea; color: var(--red-dark); }
.status-promo   { background: #e8f0fe; color: var(--blue-dark); }
.status-blocked { background: #fce8ea; color: var(--red-dark); }

/* Bulk actions bar */
.bulk-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 14px 22px; background: var(--blue-dark); border-radius: var(--radius) var(--radius) 0 0; }
.bulk-actions label { color: var(--white); font-size: 0.88rem; font-weight: 600; display: flex; align-items: center; gap: 8px; }

/* ---------- MODAL ---------- */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 2000; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.open { display: flex; }
.modal { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; max-width: 600px; max-height: 90vh; overflow-y: auto; }
.modal-header { padding: 20px 24px; border-bottom: 2px solid var(--gray-pale); display: flex; align-items: center; justify-content: space-between; }
.modal-header h3 { font-size: 1.1rem; font-weight: 800; color: var(--blue-dark); }
.modal-close { width: 32px; height: 32px; border-radius: 50%; background: var(--gray-pale); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: background var(--transition); font-size: 1.2rem; color: var(--gray); }
.modal-close:hover { background: var(--red); color: var(--white); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 2px solid var(--gray-pale); display: flex; justify-content: flex-end; gap: 12px; }

/* ---------- PAGE HEADER BANNER ---------- */
.page-banner { background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 60%, var(--red-dark) 100%); color: var(--white); padding: 36px 0; margin-bottom: 0; }
.page-banner h1 { font-size: 1.9rem; font-weight: 900; margin-bottom: 6px; }
.page-banner .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: rgba(255,255,255,0.7); }
.page-banner .breadcrumb a { color: rgba(255,255,255,0.7); }
.page-banner .breadcrumb a:hover { color: var(--white); }
.page-banner .breadcrumb span { color: rgba(255,255,255,0.4); }

/* ---------- TOAST NOTIFICATIONS ---------- */
.toast-container { position: fixed; top: 90px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--white); border-radius: var(--radius-sm); box-shadow: var(--shadow-lg); padding: 14px 18px; min-width: 280px; display: flex; align-items: center; gap: 12px; font-size: 0.9rem; border-left: 4px solid var(--blue); animation: slideIn 0.3s ease; }
.toast.success { border-left-color: #34a853; }
.toast.error   { border-left-color: var(--red); }
.toast.info    { border-left-color: var(--blue); }
@keyframes slideIn { from { transform: translateX(120%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOut { from { transform: translateX(0); opacity: 1; } to { transform: translateX(120%); opacity: 0; } }
.toast.hiding { animation: slideOut 0.3s ease forwards; }

/* ---------- LOADING SPINNER ---------- */
.spinner { display: inline-block; width: 22px; height: 22px; border: 3px solid rgba(26,58,107,0.15); border-top-color: var(--blue); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- IMAGE UPLOAD PREVIEW ---------- */
.img-upload-area { border: 2px dashed var(--gray-light); border-radius: var(--radius); padding: 28px; text-align: center; cursor: pointer; transition: border-color var(--transition); }
.img-upload-area:hover { border-color: var(--blue-light); }
.img-upload-area.dragging { border-color: var(--blue); background: var(--gray-pale); }
.img-preview-grid { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 14px; }
.img-preview-item { position: relative; width: 90px; height: 90px; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid var(--gray-light); }
.img-preview-item img { width: 100%; height: 100%; object-fit: cover; }
.img-preview-item .remove-img { position: absolute; top: 3px; right: 3px; width: 20px; height: 20px; background: var(--red); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 0.7rem; font-weight: 700; }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1100px) {
  .promo-card { min-width: 260px; max-width: 260px; }
  .showcase-card { min-width: 180px; max-width: 180px; }
  .feedback-card { min-width: 260px; max-width: 260px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .admin-sidebar { width: 200px; }
  .admin-main { margin-left: 200px; }
}

@media (max-width: 900px) {
  .navbar-menu { display: none; }
  .hamburger { display: flex; }
  .navbar-search { max-width: 200px; }
  .contact-grid { grid-template-columns: 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .cart-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-row-3 { grid-template-columns: 1fr 1fr; }
  .admin-sidebar { transform: translateX(-100%); transition: transform 0.3s; }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .section-title { font-size: 1.3rem; }
  .promo-card { min-width: 240px; max-width: 240px; }
  .showcase-card { min-width: 160px; max-width: 160px; }
  .showcase-card-images { height: 120px; }
  .feedback-card { min-width: 85vw; max-width: 85vw; }
  .slider-btn.prev { left: -10px; }
  .slider-btn.next { right: -10px; }
  .auth-card { padding: 28px 22px; }
  .footer-grid { grid-template-columns: 1fr; }
  .search-panel-inner { flex-direction: column; }
  .form-row-3 { grid-template-columns: 1fr; }
  .navbar-search { display: none; }
  .admin-content { padding: 16px; }
  .cart-table th:nth-child(3), .cart-table td:nth-child(3) { display: none; }
}

/* Mobile nav overlay */
.nav-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 990; }
.nav-overlay.open { display: block; }
.mobile-nav {
  display: none; position: fixed; top: 0; left: 0; width: 80%; max-width: 300px; height: 100vh;
  background: var(--white); box-shadow: var(--shadow-lg); z-index: 995; overflow-y: auto;
  transform: translateX(-100%); transition: transform 0.3s;
}
.mobile-nav.open { display: flex; flex-direction: column; transform: translateX(0); }
.mobile-nav-header { padding: 20px; border-bottom: 2px solid var(--gray-pale); display: flex; justify-content: space-between; align-items: center; }
.mobile-nav-links { padding: 16px 0; }
.mobile-nav-links a { display: block; padding: 13px 22px; font-size: 0.95rem; font-weight: 600; color: var(--gray-dark); border-bottom: 1px solid var(--gray-pale); transition: background var(--transition); }
.mobile-nav-links a:hover { background: var(--gray-pale); color: var(--blue); }