/* ============================================
   Blue Horizon Store — Main Stylesheet
   ============================================ */

/* CSS Custom Properties */
:root {
    --bg-primary: #080e1a;
    --bg-secondary: #0a1628;
    --bg-card: #0f172a;
    --bg-card-hover: #131d33;
    --border-color: #1e3a5f;
    --border-subtle: #1e293b;
    --accent: #38bdf8;
    --accent-hover: #60ccf9;
    --accent-dim: rgba(56, 189, 248, 0.08);
    --text-primary: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Courier New', monospace;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(56, 189, 248, 0.15);
    --max-width: 1280px;
}

/* Reset & Base */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

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

/* ============================================
   Header / Navigation
   ============================================ */

.store-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 32px;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
    border-bottom: 1px solid transparent;
}

.store-header.scrolled {
    background: rgba(10, 22, 40, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom-color: var(--border-color);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.store-nav {
    max-width: var(--max-width);
    margin: 0 auto;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.store-logo {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary) !important;
    letter-spacing: -0.5px;
    white-space: nowrap;
}

.store-logo span {
    color: var(--accent);
}

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

.store-nav-links a {
    color: var(--text-muted);
    font-size: 16px;
    font-weight: 500;
    position: relative;
    padding: 6px 0;
    transition: color 0.2s;
}

.store-nav-links a:hover,
.store-nav-links a.active {
    color: var(--text-primary);
}

.store-nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.2s;
}

.store-nav-links a:hover::after,
.store-nav-links a.active::after {
    width: 100%;
}

.store-nav-right {
    display: flex;
    align-items: center;
    gap: 18px;
}

.currency-selector {
    position: relative;
}

.currency-badge {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dim);
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 5px 10px;
    letter-spacing: 0.5px;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s;
    font-family: inherit;
}

.currency-badge:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    background: rgba(255,255,255,0.08);
}

.currency-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    min-width: 130px;
    z-index: 1001;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.currency-dropdown.open {
    display: block;
}

.currency-option {
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.15s;
}

.currency-option:hover {
    background: rgba(255,255,255,0.06);
    color: var(--text-primary);
}

.currency-option.active {
    color: var(--accent);
    background: rgba(99,102,241,0.1);
}

.store-nav-right .cart-btn {
    position: relative;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 22px;
    cursor: pointer;
    padding: 8px;
    transition: color 0.2s;
}

.store-nav-right .cart-btn:hover { color: var(--text-primary); }

.cart-badge {
    position: absolute;
    top: -4px;
    right: -6px;
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 11px;
    font-weight: 800;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: badgeBounce 0.3s ease;
}

@keyframes badgeBounce {
    0% { transform: scale(0); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

.store-nav-right .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: border-color 0.2s;
}

.store-nav-right .user-avatar:hover { border-color: var(--accent); }

/* Avatar Dropdown */
.avatar-dropdown {
    position: absolute;
    top: 68px;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px 0;
    min-width: 200px;
    box-shadow: var(--shadow-card);
    display: none;
    z-index: 1001;
}

.avatar-dropdown.open { display: block; }

.avatar-dropdown a,
.avatar-dropdown button {
    display: block;
    width: 100%;
    padding: 12px 18px;
    color: var(--text-muted);
    font-size: 14px;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.avatar-dropdown a:hover,
.avatar-dropdown button:hover {
    background: var(--accent-dim);
    color: var(--text-primary);
}

/* Mobile hamburger */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-outline:hover {
    background: var(--accent-dim);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-lg { padding: 16px 32px; font-size: 17px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    padding: 160px 32px 100px;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(56, 189, 248, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 50%, rgba(129, 140, 248, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    max-width: 760px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--accent-dim);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 20px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 24px;
    animation: fadeInDown 0.6s ease backwards;
}

.hero h1 {
    font-size: 58px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
    animation: fadeInUp 0.6s ease backwards 0.1s;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--accent), #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 20px;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto 36px;
    animation: fadeInUp 0.6s ease backwards 0.2s;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    animation: fadeInUp 0.6s ease backwards 0.3s;
}

/* ============================================
   Sections
   ============================================ */

.section {
    padding: 90px 32px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 52px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 14px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 18px;
    max-width: 540px;
    margin: 0 auto;
}

.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    max-width: var(--max-width);
    margin: 0 auto;
}

/* ============================================
   Product Cards
   ============================================ */

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
}

.product-card-image {
    width: 100%;
    aspect-ratio: 16/10;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: 13px;
    overflow: hidden;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card-body {
    padding: 20px;
}

.product-card-category {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    margin-bottom: 8px;
}

.product-card-name {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.product-card-desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-card-price {
    font-size: 20px;
    font-weight: 800;
    color: var(--accent);
}

/* ============================================
   Tier / Pricing Cards
   ============================================ */

.tier-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

.tier-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    position: relative;
    transition: transform 0.2s, border-color 0.2s;
}

.tier-card:hover {
    transform: translateY(-4px);
}

.tier-card.popular {
    background: linear-gradient(135deg, #0c2d48, #0f3460);
    border: 2px solid var(--accent);
    box-shadow: var(--shadow-glow);
}

.tier-card .popular-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 10px;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tier-card-name {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.tier-card-price {
    font-size: 40px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 6px;
}

.tier-card-price span {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dim);
}

.tier-card-divider {
    height: 1px;
    background: var(--border-subtle);
    margin: 20px 0;
}

.tier-card-features {
    list-style: none;
    margin-bottom: 24px;
}

.tier-card-features li {
    padding: 7px 0;
    font-size: 15px;
    color: var(--text-muted);
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.tier-card-features li .check {
    color: var(--accent);
    font-weight: 700;
    flex-shrink: 0;
}

.tier-card .btn { width: 100%; }

/* ============================================
   Cart
   ============================================ */

.cart-container {
    max-width: 800px;
    margin: 0 auto;
}

.cart-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 14px;
}

.cart-item-image {
    width: 90px;
    height: 56px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    object-fit: cover;
    flex-shrink: 0;
}

.cart-item-info { flex: 1; }
.cart-item-name { font-weight: 600; font-size: 16px; }
.cart-item-category { font-size: 13px; color: var(--text-dim); }

.cart-item-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
    white-space: nowrap;
}

.cart-item-remove {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    transition: color 0.2s;
}

.cart-item-remove:hover { color: var(--danger); }

.cart-summary {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-top: 24px;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 18px;
}

.cart-total .amount { color: var(--accent); }

/* ============================================
   Forms
   ============================================ */

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.form-input::placeholder { color: var(--text-dim); }

.form-error {
    color: var(--danger);
    font-size: 12px;
    margin-top: 4px;
}

.form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    max-width: 480px;
    margin: 0 auto;
}

.form-card h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 28px;
    text-align: center;
}

.form-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    color: var(--text-dim);
    font-size: 12px;
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-subtle);
}

.discord-btn {
    width: 100%;
    padding: 14px;
    background: #5865f2;
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background 0.2s;
}

.discord-btn:hover { background: #4752c4; }

/* ============================================
   Feature Comparison Table
   ============================================ */

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 48px;
}

.comparison-table th {
    padding: 14px 16px;
    text-align: center;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 80px;
    background: var(--bg-primary);
    z-index: 10;
}

.comparison-table th:first-child {
    text-align: left;
}

.comparison-table th.popular-col {
    color: var(--accent);
}

.comparison-table td {
    padding: 12px 16px;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-subtle);
}

.comparison-table td:first-child {
    text-align: left;
    color: var(--text-primary);
    font-weight: 500;
}

.comparison-table .check { color: var(--accent); font-weight: 700; }
.comparison-table .cross { color: var(--text-dim); }

.comparison-table .category-row td {
    font-weight: 700;
    color: var(--accent);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding-top: 24px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

/* ============================================
   Order / Purchase Cards
   ============================================ */

.order-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 18px;
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.order-id { font-family: var(--font-mono); font-size: 13px; color: var(--text-dim); }
.order-date { font-size: 13px; color: var(--text-dim); }

.order-status {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.order-status.completed { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.order-status.pending { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.order-status.refunded { background: rgba(239, 68, 68, 0.15); color: var(--danger); }

.order-items { margin-bottom: 12px; }

.order-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-subtle);
}

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

.order-total {
    text-align: right;
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
}

/* ============================================
   Warning Banners
   ============================================ */

.banner {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.banner-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

.banner-info {
    background: var(--accent-dim);
    border: 1px solid rgba(56, 189, 248, 0.2);
    color: var(--accent);
}

.banner-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: var(--success);
}

/* ============================================
   Category Filters
   ============================================ */

.filter-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-tab:hover { border-color: var(--accent); color: var(--text-primary); }
.filter-tab.active { background: var(--accent); color: var(--bg-primary); border-color: var(--accent); font-weight: 700; }

.search-input {
    width: 100%;
    max-width: 420px;
    padding: 12px 16px 12px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s;
}

.search-input:focus { border-color: var(--accent); }

/* ============================================
   Pagination
   ============================================ */

.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 40px;
}

.pagination button {
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.pagination button:hover { border-color: var(--accent); color: var(--text-primary); }
.pagination button.active { background: var(--accent); color: var(--bg-primary); border-color: var(--accent); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============================================
   Empty States
   ============================================ */

.empty-state {
    text-align: center;
    padding: 70px 24px;
    color: var(--text-dim);
}

.empty-state-icon {
    font-size: 56px;
    margin-bottom: 18px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.empty-state p {
    font-size: 15px;
    margin-bottom: 22px;
}

/* ============================================
   Footer
   ============================================ */

.store-footer {
    border-top: 1px solid var(--border-subtle);
    padding: 56px 32px 28px;
    margin-top: 80px;
}

.store-footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.store-footer-brand {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 14px;
}

.store-footer-brand span { color: var(--accent); }

.store-footer-desc {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.7;
}

.store-footer h4 {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.store-footer ul {
    list-style: none;
}

.store-footer ul li { margin-bottom: 8px; }

.store-footer ul a {
    color: var(--text-dim);
    font-size: 14px;
    transition: color 0.2s;
}

.store-footer ul a:hover { color: var(--text-primary); }

.store-footer-bottom {
    max-width: var(--max-width);
    margin: 32px auto 0;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
    color: var(--text-dim);
    font-size: 12px;
}

/* ============================================
   Page Wrapper (accounts for fixed header)
   ============================================ */

.page-content {
    padding-top: 80px;
    min-height: calc(100vh - 80px);
}

/* ============================================
   Loading Spinner
   ============================================ */

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 40px auto;
}

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

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered card animation */
.product-card { animation: fadeInUp 0.4s ease backwards; }
.product-card:nth-child(1) { animation-delay: 0.05s; }
.product-card:nth-child(2) { animation-delay: 0.1s; }
.product-card:nth-child(3) { animation-delay: 0.15s; }
.product-card:nth-child(4) { animation-delay: 0.2s; }
.product-card:nth-child(5) { animation-delay: 0.25s; }
.product-card:nth-child(6) { animation-delay: 0.3s; }

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .tier-grid { grid-template-columns: repeat(2, 1fr); }
    .store-footer-inner { grid-template-columns: 1fr 1fr; gap: 24px; }
}

@media (max-width: 768px) {
    .store-nav-links { display: none; }
    .mobile-menu-btn { display: block; }

    .store-nav { height: 64px; }
    .store-logo { font-size: 22px; }
    .page-content { padding-top: 64px; }

    .hero { padding: 140px 20px 60px; }
    .hero h1 { font-size: 36px; }
    .hero p { font-size: 16px; }
    .hero-actions { flex-direction: column; align-items: center; }

    .product-grid { grid-template-columns: 1fr; }
    .tier-grid { grid-template-columns: 1fr; max-width: 360px; }

    .section { padding: 48px 16px; }
    .section-header h2 { font-size: 28px; }
    .section-header p { font-size: 16px; }

    .store-footer-inner { grid-template-columns: 1fr; gap: 24px; }

    .comparison-table { font-size: 12px; }
    .comparison-table th, .comparison-table td { padding: 8px; }

    .form-card { padding: 24px 16px; }
}

@media (max-width: 480px) {
    .hero { padding: 120px 16px 48px; }
    .hero h1 { font-size: 28px; }
    .filter-tabs { gap: 6px; }
    .filter-tab { padding: 6px 12px; font-size: 12px; }
}