/* ================= Variables & Reset ================= */
:root {
    /* Light Mode */
    --bg-color: #f5f1e8;
    --surface: rgba(255, 255, 255, 0.7);
    --surface-hover: rgba(255, 255, 255, 0.9);
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --accent: #1d1d1f;
    --accent-text: #ffffff;
    --danger: #ff3b30;
    --success: #03C75A;
    --border: rgba(0, 0, 0, 0.1);
    --radius: 14px;
    --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.08);
    --blur: blur(20px);
    --transition: all 0.2s ease-in-out;
}

[data-theme="dark"] {
    /* Dark Mode */
    --bg-color: #121212;
    --surface: rgba(42, 42, 42, 0.7);
    --surface-hover: rgba(60, 60, 60, 0.9);
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --border: rgba(255, 255, 255, 0.15);
    --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.5);
    --accent: #f5f5f7;
    --accent-text: #1d1d1f;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", sans-serif; }
body { background-color: var(--bg-color); color: var(--text-primary); transition: background-color 0.3s, color 0.3s; line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; color: inherit; font-size: inherit; }

/* Global Inputs */
input, select, textarea { 
    width: 100%; padding: 14px; border-radius: 8px; border: 1px solid var(--border); 
    background: var(--bg-color); color: var(--text-primary); outline: none; transition: var(--transition); font-size: 14px; 
}
input:focus, select:focus, textarea:focus { border-color: var(--text-secondary); box-shadow: 0 0 0 2px rgba(134, 134, 139, 0.1); background: var(--surface); }

.hidden { display: none !important; }

/* Utilities */
.flex { display: flex; } .flex-1 { flex: 1; } .justify-between { justify-content: space-between; } .align-center { align-items: center; }
.text-center { text-align: center; } .text-secondary { color: var(--text-secondary); } .text-danger { color: var(--danger); } .text-success { color: var(--success); }
.font-bold { font-weight: bold; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-4 { margin-top: 32px; } .mb-2 { margin-bottom: 16px; } .mb-4 { margin-bottom: 32px; }
.block { display: block; }
.svg-icon { width: 24px; height: 24px; fill: currentColor; }

/* ================= Components ================= */
.glass-card { background: var(--surface); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: var(--transition); }
.btn { padding: 14px 24px; border-radius: 8px; font-weight: 600; transition: var(--transition); display: inline-flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer; }
.btn.primary { background: var(--accent); color: var(--accent-text); border: 1px solid var(--accent); }
.btn.primary:hover { opacity: 0.85; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn.danger { background: var(--danger); color: #fff; border: 1px solid var(--danger); }
.btn-text { color: var(--text-secondary); font-weight: 600; text-decoration: underline; }
.btn-text:hover { color: var(--text-primary); }
.icon-btn { display: flex; align-items: center; justify-content: center; padding: 8px; border-radius: 50%; transition: var(--transition); }
.icon-btn:hover { background: var(--border); }
.full-width { width: 100%; }
.badge { background: var(--danger); color: white; font-size: 11px; padding: 2px 6px; border-radius: 10px; position: absolute; top: 0; right: 0; font-weight: bold; }

/* Logo File System Support */
.logo-area { display: flex; align-items: center; }
.logo-area img { height: 60px; width: auto; object-fit: contain; transition: var(--transition); }
.logo-text { font-size: 24px; font-weight: 800; letter-spacing: -0.5px; color: var(--text-primary); }

/* Custom Dropdown UI (Z-index 겹침 문제 완전 해결) */
.custom-select-wrapper { position: relative; display: inline-block; min-width: 140px; user-select: none; z-index: 10; }
.custom-select-trigger { background: var(--bg-color); padding: 10px 16px; border: 1px solid var(--border); border-radius: 8px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; color: var(--text-primary); font-weight: 600; transition: var(--transition); }
.custom-select-trigger:hover { border-color: var(--text-secondary); background: var(--surface-hover); }
.custom-select-options { position: absolute; top: calc(100% + 6px); left: 0; right: 0; background: var(--bg-color); border: 1px solid var(--border); border-radius: 8px; z-index: 9999; display: none; box-shadow: 0 8px 25px rgba(0,0,0,0.4); overflow: hidden; min-width: 140px; padding: 8px 0; }
.custom-select-options.open { display: block; animation: slideDown 0.2s ease-out; }
.custom-select-option { padding: 10px 14px; cursor: pointer; transition: background 0.2s; color: var(--text-primary); font-size: 14px; }
.custom-select-option:hover, .custom-select-option.selected { background: var(--surface-hover); font-weight: bold; }

@keyframes slideDown { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }

/* Status Badges */
.status-badge { padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; display: inline-block; }
.status-complete { background: rgba(3, 199, 90, 0.1); color: var(--success); border: 1px solid var(--success); }
.status-prep { background: rgba(245, 197, 24, 0.1); color: #d4a000; border: 1px solid #d4a000; }
.status-ship { background: rgba(0, 113, 227, 0.1); color: #0071e3; border: 1px solid #0071e3; }
.status-cancel { background: rgba(255, 59, 48, 0.1); color: var(--danger); border: 1px solid var(--danger); }

/* ================= Layout & Z-Indexes ================= */
.top-nav { position: sticky; top: 0; z-index: 200; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; height: 64px; background: var(--surface); backdrop-filter: var(--blur); border-bottom: 1px solid var(--border); transition: var(--transition); }
.nav-brand { display: flex; align-items: center; gap: 16px; }
.mobile-only { display: none; }

/* Search Area */
.search-container { flex: 1; max-width: 600px; margin: 0 24px; position: relative; }
.search-bar { position: relative; display: flex; align-items: center; }
.search-bar input { border-radius: 24px; padding: 12px 48px 12px 20px; width: 100%; background: var(--bg-color); }
.search-bar button { position: absolute; right: 12px; display: flex; align-items: center; color: var(--text-secondary); }
.search-dropdown { position: absolute; top: calc(100% + 8px); left: 0; width: 100%; padding: 20px; z-index: 1000; max-height: 500px; overflow-y: auto; box-shadow: var(--shadow-md); }
.search-section h4 { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.suggestion-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.suggestion-tags li { background: var(--border); padding: 6px 14px; border-radius: 20px; font-size: 13px; cursor: pointer; transition: var(--transition); }
.suggestion-tags li:hover { background: var(--text-primary); color: var(--bg-color); }
#recent-search-list li, #autocomplete-list li { padding: 10px; border-radius: 8px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-size: 14px; transition: var(--transition); }
#recent-search-list li:hover, #autocomplete-list li:hover { background: var(--surface-hover); }

.nav-actions { display: flex; align-items: center; gap: 12px; }
.cart-icon { position: relative; }

/* Theme Switch */
.theme-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.theme-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background: var(--border); transition: .4s; border-radius: 24px; }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px; background-color: var(--text-primary); transition: .4s; border-radius: 50%; }
input:checked + .slider:before { transform: translateX(20px); }

/* App Grid */
.app-layout { display: flex; max-width: 1440px; margin: 0 auto; min-height: calc(100vh - 64px - 200px); position: relative; z-index: 10; }
.sidebar { width: 240px; padding: 32px 24px; border-right: 1px solid var(--border); flex-shrink: 0; transition: var(--transition); z-index: 100; background: var(--bg-color); }
.side-menu h3, .side-categories h3 { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; font-weight: 600; }
.side-menu li a, .side-categories li a { display: block; padding: 10px 12px; border-radius: 8px; margin-bottom: 4px; transition: var(--transition); font-weight: 500; font-size: 15px; position: relative; z-index: 300;}
.side-menu li a:hover, .side-categories li a:hover, .side-categories li a.active { background: var(--border); }
.admin-link { color: var(--danger) !important; font-weight: bold; }
.main-content { flex: 1; padding: 40px; overflow-x: hidden; min-width: 0; position: relative; z-index: 10;}

/* ================= Views & Homepage ================= */
.view-section { animation: fadeIn 0.4s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }

/* Home Banner */
.home-banner-wrapper { position: relative; width: 100%; border-radius: var(--radius); overflow: hidden; margin-bottom: 48px; border: 1px solid var(--border); z-index: 1; }
.home-slider { display: flex; transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1); width: 100%; height: 400px; }
.home-slide { min-width: 100%; display: flex; flex-direction: column; justify-content: center; padding: 60px; background-size: cover; background-position: center; position: relative; }
.home-slide::before { content: ""; position: absolute; inset: 0; background: linear-gradient(to right, rgba(0,0,0,0.6), transparent); }
.slide-content { position: relative; z-index: 2; color: #fff; text-shadow: 0 2px 8px rgba(0,0,0,0.5); max-width: 500px; }
.slide-content h2 { font-size: 40px; font-weight: 800; margin-bottom: 16px; line-height: 1.2; }
.slide-content p { font-size: 18px; opacity: 0.9; margin-bottom: 24px; }
.slider-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; background: rgba(255,255,255,0.2); backdrop-filter: blur(8px); border-radius: 50%; color: white; display: flex; align-items: center; justify-content: center; z-index: 10; transition: var(--transition); border: 1px solid rgba(255,255,255,0.3); }
.slider-btn:hover { background: rgba(255,255,255,0.4); }
.slider-btn.prev { left: 24px; } .slider-btn.next { right: 24px; }
.slider-indicators { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 10; }
.indicator { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.4); transition: var(--transition); cursor: pointer; }
.indicator.active { background: #fff; width: 24px; border-radius: 10px; }

/* Grid & Cards */
.home-section { margin-bottom: 56px; }
.section-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 24px; }
.section-header h2 { font-size: 24px; font-weight: 800; }
.section-header p { color: var(--text-secondary); font-size: 15px; margin-left: 12px; }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 24px; position: relative; z-index: 1; }
.product-card { display: flex; flex-direction: column; cursor: pointer; transition: var(--transition); position: relative; z-index: 1; }
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); z-index: 2; }
.card-img-wrap { width: 100%; aspect-ratio: 1; border-radius: var(--radius); overflow: hidden; position: relative; border: 1px solid var(--border); background: var(--bg-color); }
.card-img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1); }
.product-card:hover .card-img { transform: scale(1.05); }

/* Hover Actions */
.card-hover-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.4); backdrop-filter: blur(2px); display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 12px; opacity: 0; transition: var(--transition); z-index: 5; pointer-events: none; }
.product-card:hover .card-hover-overlay { opacity: 1; pointer-events: auto; }
.hover-btn { background: var(--surface); color: var(--text-primary); border-radius: 30px; padding: 10px 20px; font-weight: 600; font-size: 14px; display: flex; align-items: center; gap: 8px; transition: transform 0.2s, background 0.2s; border: 1px solid var(--border); }
.hover-btn:hover { transform: scale(1.05); background: var(--bg-color); }

.card-content { padding: 16px 8px 8px; display: flex; flex-direction: column; flex-grow: 1; }
.card-category { font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.card-title { font-size: 15px; font-weight: 500; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.4; color: var(--text-primary); }
.card-rating-wrap { display: flex; align-items: center; gap: 4px; margin-bottom: 8px; font-size: 12px; color: var(--text-secondary); }
.rating-stars { display: flex; color: #f5c518; }
.rating-stars svg { width: 14px; height: 14px; fill: currentColor; }
.card-price-row { display: flex; align-items: baseline; gap: 8px; margin-top: auto; }
.card-discount { color: var(--danger); font-weight: bold; }
.card-price { font-weight: 800; font-size: 18px; }

/* Shop Toolbar */
.shop-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; padding: 16px 24px; position: relative; z-index: 50; overflow: visible !important; }

/* Product Detail */
.detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.detail-img-container { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); background: var(--bg-color); aspect-ratio: 1; }
.detail-gallery-main { width: 100%; height: 100%; object-fit: cover; }
.detail-thumbnail-wrap { display: flex; gap: 12px; margin-top: 16px; overflow-x: auto; padding-bottom: 8px; }
.detail-thumbnail { width: 80px; height: 80px; border-radius: 8px; object-fit: cover; cursor: pointer; border: 2px solid transparent; transition: var(--transition); }
.detail-thumbnail.active { border-color: var(--text-primary); }

.detail-info { display: flex; flex-direction: column; position: relative; }
.detail-info h1 { font-size: 32px; font-weight: 800; margin-bottom: 12px; line-height: 1.3; }
.price-box { padding: 24px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin: 24px 0; }
.price-box .final-price { font-size: 36px; font-weight: 800; }
.action-buttons { display: flex; gap: 16px; margin-top: auto; }

/* Accordion */
.accordion { margin-top: 40px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--bg-color);}
.accordion-header { padding: 24px; background: var(--surface); font-weight: bold; font-size: 18px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.product-description { max-height: 0; overflow: hidden; transition: max-height 0.4s ease-in-out; padding: 0 24px; }
.product-description.open { max-height: 5000px; padding: 24px; overflow: visible; }
.product-detail-image { width: 100%; border-radius: 8px; margin-top: 16px; display: block; }

/* Reviews */
.review-section { margin-top: 48px; padding: 32px; overflow: visible !important; position: relative; z-index: 15;}
.review-form { margin-bottom: 32px; padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); overflow: visible !important;}
.review-item { padding: 24px 0; border-bottom: 1px solid var(--border); }
.review-item:last-child { border-bottom: none; }

/* Cart & Checkout Advanced */
.cart-list { padding: 32px; }
.cart-item { display: flex; align-items: center; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--border); }
.cart-item img { width: 100px; height: 100px; border-radius: 8px; object-fit: cover; border: 1px solid var(--border); }
.cart-item-info { flex: 1; }
.qty-controls { display: flex; align-items: center; gap: 16px; border: 1px solid var(--border); border-radius: 8px; padding: 4px; background: var(--bg-color); }
.qty-controls button { padding: 4px 12px; font-size: 16px; }

.checkout-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 32px; }
.checkout-section { padding: 32px; margin-bottom: 24px; overflow: visible !important; position: relative; z-index: 20; }
.checkout-summary { padding: 32px; position: sticky; top: 88px; }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 16px; font-size: 15px; color: var(--text-secondary); }
.summary-total { font-size: 22px; font-weight: bold; border-top: 1px solid var(--border); padding-top: 24px; margin-top: 24px; display: flex; justify-content: space-between; }

/* Selection Cards (Addresses/Payments) */
.selection-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.select-card { border: 1px solid var(--border); border-radius: 8px; padding: 16px; cursor: pointer; transition: var(--transition); background: var(--bg-color); position: relative;}
.select-card:hover { border-color: var(--text-secondary); }
.select-card.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); background: var(--surface); }
.select-card h4 { margin-bottom: 8px; font-size: 15px; }
.select-card p { color: var(--text-secondary); font-size: 13px; line-height: 1.4; }

.payment-form-area { margin-top: 24px; padding-top: 24px; border-top: 1px dashed var(--border); overflow: visible !important; position: relative; z-index: 25; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.payment-methods { display: flex; gap: 12px; margin-top: 12px; }
.pay-btn { flex: 1; padding: 16px; border: 1px solid var(--border); border-radius: 8px; text-align: center; cursor: pointer; transition: var(--transition); font-weight: 500; }
.pay-btn.active { border-color: var(--text-primary); background: var(--border); font-weight: 700; }

/* Profile Layout */
.profile-grid { display: grid; grid-template-columns: 260px 1fr; gap: 40px; }
.profile-nav li { padding: 16px; margin-bottom: 8px; border-radius: 8px; cursor: pointer; font-weight: 600; transition: var(--transition); color: var(--text-secondary); }
.profile-nav li:hover, .profile-nav li.active { background: var(--surface); color: var(--text-primary); border: 1px solid var(--border); }

/* ================= Admin UI ================= */
.drop-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 40px; text-align: center; cursor: pointer; transition: var(--transition); background: var(--bg-color); display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--text-secondary); }
.drop-zone:hover, .drop-zone.dragover { border-color: var(--text-secondary); background: var(--surface-hover); color: var(--text-primary); }
.drop-zone svg { width: 48px; height: 48px; margin-bottom: 16px; fill: currentColor; opacity: 0.7; }
.image-preview-area { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.img-prev-box { position: relative; width: 100px; height: 100px; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.img-prev-box img { width: 100%; height: 100%; object-fit: cover; }
.img-prev-box button { position: absolute; top: 6px; right: 6px; background: rgba(0,0,0,0.7); color: white; border-radius: 50%; width: 24px; height: 24px; font-size: 14px; display:flex; align-items:center; justify-content:center; border: none; cursor: pointer; transition: 0.2s;}
.img-prev-box button:hover { background: var(--danger); transform: scale(1.1); }

.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; margin-bottom: 40px; }
.stat-card { padding: 32px; text-align: center; }
.stat-card h3 { font-size: 15px; color: var(--text-secondary); margin-bottom: 12px; }
.stat-card .value { font-size: 36px; font-weight: 800; }

/* Admin Table Layout Fix */
.admin-table-wrapper { width: 100%; overflow-x: auto; border-radius: 8px; border: 1px solid var(--border); background: var(--bg-color); }
.admin-table { width: 100%; min-width: 1000px; border-collapse: collapse; text-align: left; }
.admin-table th, .admin-table td { padding: 16px; border-bottom: 1px solid var(--border); vertical-align: middle; white-space: nowrap; }
.admin-table th { font-weight: 600; color: var(--text-secondary); font-size: 14px; background: var(--surface); position: sticky; top: 0; z-index: 10;}
.admin-table td { font-size: 14px; }
.chart-container { width: 100%; height: 350px; margin-top: 24px; position: relative; }

/* Footer */
.site-footer { background: var(--surface); border-top: 1px solid var(--border); padding: 48px 24px 32px; text-align: center; margin-top: auto; position: relative; z-index: 10;}
.footer-inner { max-width: 1440px; margin: 0 auto; display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 48px; margin-bottom: 48px; text-align: left; }
.footer-info h2 { font-size: 24px; margin-bottom: 16px; font-weight: 800; letter-spacing: -1px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; font-size: 14px; color: var(--text-secondary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 32px; color: var(--text-secondary); font-size: 13px; display: flex; justify-content: space-between; max-width: 1440px; margin: 0 auto; }

/* Modals */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 5000; opacity: 1; transition: opacity 0.3s ease; backdrop-filter: blur(4px); }
.modal-overlay.hidden { opacity: 0; pointer-events: none; }
.modal-content { width: 100%; max-width: 440px; padding: 40px; position: relative; transform: translateY(0); transition: transform 0.3s ease; max-height: 90vh; overflow-y:auto; }
.modal-overlay.hidden .modal-content { transform: translateY(20px); }
.modal-close { position: absolute; top: 20px; right: 20px; color: var(--text-secondary); transition: var(--transition); }
.modal-close:hover { color: var(--text-primary); transform: scale(1.1); }
.form-group { margin-bottom: 20px; text-align: left; }
.form-group label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; }

.social-btn-group { display: flex; justify-content: center; gap: 16px; }
.social-btn { width: 48px; height: 48px; border-radius: 50%; font-weight: 800; font-size: 18px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); background: var(--surface); transition: var(--transition); color: var(--text-primary); cursor: pointer; }
.social-btn:hover:not(:disabled) { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.social-btn.google { color: #EA4335; } .social-btn.naver { color: #03C75A; border-color: #03C75A; }
.social-btn.kakao { color: #3A2929; background-color: #FEE500; border: none; }

/* Loading UI for Login */
.login-spinner-overlay { position: absolute; inset: 0; background: rgba(255,255,255,0.8); backdrop-filter: blur(4px); display: flex; flex-direction: column; justify-content: center; align-items: center; z-index: 100; border-radius: var(--radius); }
[data-theme="dark"] .login-spinner-overlay { background: rgba(30,30,30,0.8); }
.spinner { border: 4px solid var(--border); border-top: 4px solid var(--accent); border-radius: 50%; width: 40px; height: 40px; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.loading-disabled { opacity: 0.5; cursor: not-allowed !important; pointer-events: none; }

/* Toast & Skeleton */
.toast-container { position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 12px; z-index: 9999; pointer-events: none; }
.toast { background: var(--text-primary); color: var(--bg-color); padding: 14px 32px; border-radius: 30px; font-size: 15px; font-weight: 600; box-shadow: var(--shadow-md); animation: slideUp 0.3s forwards; }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.skeleton { background: linear-gradient(90deg, var(--border) 25%, var(--bg-color) 50%, var(--border) 75%); background-size: 200% 100%; animation: loading 1.5s infinite; border-radius: 8px; }
.skeleton-img { width: 100%; aspect-ratio: 1; border-radius: var(--radius); margin-bottom: 16px; }
.skeleton-text { height: 18px; margin-bottom: 12px; width: 80%; }
@keyframes loading { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Responsive */
@media (max-width: 1024px) {
    .detail-layout, .profile-grid, .checkout-grid { grid-template-columns: 1fr; }
    .profile-nav { display: flex; overflow-x: auto; white-space: nowrap; padding-bottom: 12px; margin-bottom: 32px; border-bottom: 1px solid var(--border); }
    .profile-nav li { margin-bottom: 0; margin-right: 12px; }
}
@media (max-width: 768px) {
    .app-layout { flex-direction: column; }
    .sidebar { position: fixed; left: -280px; top: 64px; height: calc(100vh - 64px); z-index: 100; box-shadow: var(--shadow-md); width: 280px; overflow-y:auto; border-right: none; }
    .sidebar.active { left: 0; }
    .mobile-only { display: block; }
    .search-container { display: none; }
    .footer-inner { flex-direction: column; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .main-content { padding: 24px 16px; }
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .home-slide { padding: 40px 20px; }
    .slide-content h2 { font-size: 28px; }
    .card-hover-overlay { display: none; } 
    .selection-grid, .form-grid-2 { grid-template-columns: 1fr; }
    
    /* 로고 반응형 지원 (height 줄임) */
    .logo-area img { height: 32px; }
    .logo-text { font-size: 20px; }
}