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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #222240;
    --accent: #6c5ce7;
    --accent-light: #a29bfe;
    --accent-glow: rgba(108, 92, 231, 0.3);
    --text-primary: #e8e8f0;
    --text-secondary: #8888a0;
    --text-muted: #555570;
    --border: #2a2a40;
    --danger: #ff6b6b;
    --success: #51cf66;
    --warning: #ffd43b;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

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

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ============ NAVBAR ============ */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; height: 64px;
    background: rgba(10, 10, 15, 0.85); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 40px; z-index: 1000;
}
.nav-logo { font-size: 22px; font-weight: 700; color: var(--text-primary); letter-spacing: 2px; cursor: pointer; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 8px; list-style: none; }
.nav-links li a {
    padding: 8px 20px; border-radius: var(--radius-sm); color: var(--text-secondary);
    font-size: 15px; font-weight: 500; transition: var(--transition); position: relative;
}
.nav-links li a:hover, .nav-links li a.active { color: var(--text-primary); background: rgba(108, 92, 231, 0.1); }
.nav-links li a.active::after {
    content: ''; position: absolute; bottom: -1px; left: 20%; right: 20%;
    height: 2px; background: var(--accent); border-radius: 1px;
}
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-avatar {
    width: 36px; height: 36px; border-radius: 50%; background: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 600; cursor: pointer; transition: var(--transition);
}
.nav-avatar:hover { box-shadow: 0 0 0 3px var(--accent-glow); }
.btn-login {
    padding: 8px 20px; border-radius: var(--radius-sm); background: var(--accent);
    color: white; border: none; font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--transition);
}
.btn-login:hover { background: #5a4bd6; transform: translateY(-1px); }

/* ============ MAIN ============ */
.main-content { margin-top: 64px; min-height: calc(100vh - 64px); }
.page { display: none; padding: 40px; max-width: 1400px; margin: 0 auto; animation: fadeIn 0.4s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.section-title { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.section-subtitle { color: var(--text-secondary); margin-bottom: 32px; font-size: 15px; }

/* ============ CARDS ============ */
.featured-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.card {
    background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
    border: 1px solid var(--border); transition: var(--transition); cursor: pointer;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow); }
.card-thumbnail {
    width: 100%; aspect-ratio: 16 / 9; background: var(--bg-secondary);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted); font-size: 40px; position: relative; overflow: hidden;
}
.card-thumbnail img { width: 100%; height: 100%; object-fit: cover; }
.card-thumbnail .play-icon {
    position: absolute; width: 56px; height: 56px; background: rgba(108, 92, 231, 0.9);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 20px; opacity: 0; transition: var(--transition);
}
.card:hover .play-icon { opacity: 1; }
.card-body { padding: 16px; }
.card-title { font-size: 16px; font-weight: 600; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta { font-size: 13px; color: var(--text-secondary); display: flex; align-items: center; gap: 12px; }
.card-badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600; background: rgba(108, 92, 231, 0.15); color: var(--accent-light); }
.card-actions { display: flex; gap: 8px; margin-top: 12px; }

/* ============ TABS ============ */
.tabs { display: flex; gap: 8px; margin-bottom: 32px; }
.tab-btn {
    padding: 10px 24px; border-radius: var(--radius-sm); background: transparent;
    border: 1px solid var(--border); color: var(--text-secondary);
    font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--transition);
}
.tab-btn:hover { border-color: var(--accent); color: var(--text-primary); }
.tab-btn.active { background: var(--accent); border-color: var(--accent); color: white; }

/* ============ PRODUCTS ============ */
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.product-card {
    background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
    border: 1px solid var(--border); transition: var(--transition);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-image {
    width: 100%; aspect-ratio: 1; background: var(--bg-secondary);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted); font-size: 48px; overflow: hidden;
}
.product-image img { width: 100%; height: 100%; object-fit: cover; }
.product-info { padding: 20px; }
.product-name { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.product-desc { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-bottom { display: flex; align-items: center; justify-content: space-between; }
.product-price { font-size: 22px; font-weight: 700; color: var(--accent-light); }
.product-price small { font-size: 13px; font-weight: 400; }
.btn-buy {
    padding: 8px 20px; border-radius: var(--radius-sm); background: var(--accent);
    color: white; border: none; font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--transition);
}
.btn-buy:hover { background: #5a4bd6; }

/* ============ ANNOUNCEMENTS ============ */
.announcement-list { display: flex; flex-direction: column; gap: 16px; }
.announcement-item {
    background: var(--bg-card); border-radius: var(--radius);
    border: 1px solid var(--border); padding: 24px; transition: var(--transition);
}
.announcement-item:hover { border-color: var(--accent); }
.announcement-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.announcement-title { font-size: 18px; font-weight: 600; }
.announcement-date { font-size: 13px; color: var(--text-muted); }
.announcement-body { color: var(--text-secondary); font-size: 14px; line-height: 1.7; }
.announcement-tag { display: inline-block; padding: 2px 10px; border-radius: 4px; font-size: 12px; font-weight: 600; margin-bottom: 12px; }
.tag-urgent { background: rgba(255, 107, 107, 0.15); color: var(--danger); }
.tag-info { background: rgba(81, 207, 102, 0.15); color: var(--success); }
.tag-update { background: rgba(255, 212, 59, 0.15); color: var(--warning); }

/* ============ ABOUT ============ */
.about-section {
    background: var(--bg-card); border-radius: var(--radius);
    border: 1px solid var(--border); padding: 40px; margin-bottom: 24px;
}
.about-section h2 { font-size: 22px; margin-bottom: 16px; color: var(--accent-light); }
.about-section p { color: var(--text-secondary); line-height: 1.8; font-size: 15px; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; margin-top: 20px; }
.team-member { text-align: center; padding: 24px; background: var(--bg-secondary); border-radius: var(--radius); border: 1px solid var(--border); }
.team-avatar { width: 80px; height: 80px; border-radius: 50%; background: var(--accent); margin: 0 auto 12px; display: flex; align-items: center; justify-content: center; font-size: 28px; }
.team-name { font-weight: 600; margin-bottom: 4px; }
.team-role { font-size: 13px; color: var(--text-secondary); }
.job-list { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.job-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; background: var(--bg-secondary);
    border-radius: var(--radius-sm); border: 1px solid var(--border);
}
.job-info h4 { font-size: 15px; margin-bottom: 4px; }
.job-info p { font-size: 13px; color: var(--text-secondary); }
.btn-apply {
    padding: 8px 20px; border-radius: var(--radius-sm); background: transparent;
    border: 1px solid var(--accent); color: var(--accent-light);
    font-size: 13px; cursor: pointer; transition: var(--transition);
}
.btn-apply:hover { background: var(--accent); color: white; }

/* ============ ACCOUNT ============ */
.account-layout { display: grid; grid-template-columns: 260px 1fr; gap: 24px; }
.account-sidebar {
    background: var(--bg-card); border-radius: var(--radius);
    border: 1px solid var(--border); padding: 24px;
}
.account-avatar-lg {
    width: 100px; height: 100px; border-radius: 50%; background: var(--accent);
    margin: 0 auto 16px; display: flex; align-items: center; justify-content: center;
    font-size: 36px; font-weight: 700;
}
.account-name { text-align: center; font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.account-email { text-align: center; font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
.admin-badge {
    text-align: center; font-size: 12px; font-weight: 600;
    background: rgba(108, 92, 231, 0.2); color: var(--accent-light);
    padding: 4px 12px; border-radius: 20px; margin: 0 auto 20px; display: inline-block; width: fit-content;
}
.sidebar-menu { list-style: none; display: flex; flex-direction: column; gap: 4px; margin-top: 12px; }
.sidebar-menu li a {
    display: flex; align-items: center; gap: 10px; padding: 10px 14px;
    border-radius: var(--radius-sm); color: var(--text-secondary);
    font-size: 14px; transition: var(--transition);
}
.sidebar-menu li a:hover, .sidebar-menu li a.active {
    background: rgba(108, 92, 231, 0.1); color: var(--text-primary);
}
.account-main { display: flex; flex-direction: column; gap: 24px; }
.account-card {
    background: var(--bg-card); border-radius: var(--radius);
    border: 1px solid var(--border); padding: 28px;
}
.account-card h3 { font-size: 18px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.form-group input, .form-group select {
    width: 100%; padding: 10px 14px; border-radius: var(--radius-sm);
    background: var(--bg-secondary); border: 1px solid var(--border);
    color: var(--text-primary); font-size: 14px; transition: var(--transition);
}
.form-group input:focus, .form-group select:focus {
    outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow);
}
.btn-primary {
    padding: 10px 24px; border-radius: var(--radius-sm); background: var(--accent);
    color: white; border: none; font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--transition);
}
.btn-primary:hover { background: #5a4bd6; }
.btn-danger {
    padding: 6px 14px; border-radius: var(--radius-sm); background: rgba(255,107,107,0.15);
    color: var(--danger); border: none; font-size: 13px; cursor: pointer; transition: var(--transition);
}
.btn-danger:hover { background: rgba(255,107,107,0.3); }
.btn-small {
    padding: 6px 14px; border-radius: var(--radius-sm); background: transparent;
    border: 1px solid var(--border); color: var(--text-secondary);
    font-size: 13px; cursor: pointer; transition: var(--transition);
}
.btn-small:hover { border-color: var(--accent); color: var(--text-primary); }

/* Orders */
.order-list { display: flex; flex-direction: column; gap: 12px; }
.order-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px; background: var(--bg-secondary);
    border-radius: var(--radius-sm); border: 1px solid var(--border); cursor: pointer;
    transition: var(--transition);
}
.order-item:hover { border-color: var(--accent); }
.order-info h4 { font-size: 14px; margin-bottom: 4px; }
.order-info p { font-size: 12px; color: var(--text-secondary); }
.order-status { padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.status-pending { background: rgba(255, 212, 59, 0.15); color: var(--warning); }
.status-shipped { background: rgba(108, 92, 231, 0.15); color: var(--accent-light); }
.status-completed { background: rgba(81, 207, 102, 0.15); color: var(--success); }

/* Admin lists */
.admin-list-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 16px; background: var(--bg-secondary);
    border-radius: var(--radius-sm); border: 1px solid var(--border); margin-bottom: 8px;
}
.admin-list-item .item-info { flex: 1; }
.admin-list-item .item-info h4 { font-size: 14px; margin-bottom: 2px; }
.admin-list-item .item-info p { font-size: 12px; color: var(--text-secondary); }
.admin-list-item .item-actions { display: flex; gap: 8px; }

/* Order tracking */
.order-tracking { display: flex; flex-direction: column; gap: 0; margin: 16px 0; }
.tracking-step {
    display: flex; gap: 16px; padding-bottom: 20px; position: relative;
}
.tracking-step:last-child { padding-bottom: 0; }
.tracking-dot {
    width: 12px; height: 12px; border-radius: 50%; background: var(--border);
    margin-top: 4px; flex-shrink: 0; position: relative; z-index: 1;
}
.tracking-step.completed .tracking-dot { background: var(--success); }
.tracking-step.current .tracking-dot { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow); }
.tracking-line {
    position: absolute; left: 5px; top: 16px; bottom: 0; width: 2px; background: var(--border);
}
.tracking-step.completed .tracking-line { background: var(--success); }
.tracking-content h4 { font-size: 14px; margin-bottom: 2px; }
.tracking-content p { font-size: 12px; color: var(--text-secondary); }

/* ============ MODAL ============ */
.modal-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(4px);
    z-index: 2000; align-items: center; justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
    background: var(--bg-card); border-radius: var(--radius);
    border: 1px solid var(--border); padding: 32px;
    width: 90%; max-width: 440px; box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease; max-height: 90vh; overflow-y: auto;
}
@keyframes modalIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
.modal h2 { font-size: 22px; margin-bottom: 24px; text-align: center; }
.modal .form-group { margin-bottom: 18px; }
.modal-footer { display: flex; gap: 12px; margin-top: 24px; }
.modal-footer .btn-primary { flex: 1; }
.btn-secondary {
    flex: 1; padding: 10px 24px; border-radius: var(--radius-sm);
    background: transparent; border: 1px solid var(--border);
    color: var(--text-secondary); font-size: 14px; cursor: pointer; transition: var(--transition);
}
.btn-secondary:hover { border-color: var(--text-secondary); color: var(--text-primary); }

/* Video Player */
.video-player-wrapper {
    position: relative; width: 90%; max-width: 900px;
    background: var(--bg-card); border-radius: var(--radius);
    border: 1px solid var(--border); padding: 20px; box-shadow: var(--shadow-lg);
}
.video-close-btn {
    position: absolute; top: 12px; right: 16px;
    background: none; border: none; color: var(--text-secondary);
    font-size: 28px; cursor: pointer; z-index: 10; transition: var(--transition);
}
.video-close-btn:hover { color: var(--text-primary); }
.video-player-info { margin-top: 16px; }
.video-player-info h3 { font-size: 18px; margin-bottom: 8px; }
.video-player-meta { font-size: 13px; color: var(--text-secondary); display: flex; gap: 16px; }

/* Image upload area */
.image-upload-area {
    border: 2px dashed var(--border); border-radius: var(--radius);
    padding: 32px; text-align: center; cursor: pointer; transition: var(--transition);
}
.image-upload-area:hover { border-color: var(--accent); background: rgba(108, 92, 231, 0.05); }
.image-upload-area p { color: var(--text-muted); font-size: 14px; }

/* Product form grid */
.product-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.product-form-grid .full-width { grid-column: 1 / -1; }

/* ============ EMPTY STATE ============ */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* ============ TOAST ============ */
.toast {
    position: fixed; top: 80px; right: 24px;
    padding: 14px 24px; border-radius: var(--radius-sm);
    background: var(--bg-card); border: 1px solid var(--border);
    box-shadow: var(--shadow); font-size: 14px; z-index: 3000;
    animation: slideIn 0.3s ease;
    display: flex; align-items: center; gap: 10px;
}
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* ============ MOBILE ============ */
.mobile-nav {
    display: none; position: fixed; bottom: 0; left: 0; right: 0;
    height: 60px; background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px); border-top: 1px solid var(--border);
    z-index: 1000; align-items: center; justify-content: space-around;
}
.mobile-nav a {
    display: flex; flex-direction: column; align-items: center;
    gap: 4px; font-size: 10px; color: var(--text-muted); padding: 8px;
}
.mobile-nav a.active { color: var(--accent-light); }
.mobile-nav a .nav-icon { font-size: 20px; }

@media (max-width: 768px) {
    .navbar { padding: 0 16px; }
    .nav-links { display: none; }
    .mobile-nav { display: flex; }
    .main-content { margin-bottom: 60px; }
    .page { padding: 20px; }
    .account-layout { grid-template-columns: 1fr; }
    .featured-grid, .products-grid { grid-template-columns: 1fr; }
    .product-form-grid { grid-template-columns: 1fr; }
}

/* Admin order update */
.order-update-form {
    display: flex; gap: 8px; align-items: center; margin-top: 8px;
}
.order-update-form select {
    padding: 6px 12px; border-radius: var(--radius-sm);
    background: var(--bg-card); border: 1px solid var(--border);
    color: var(--text-primary); font-size: 13px;
}
.order-update-form input {
    padding: 6px 12px; border-radius: var(--radius-sm);
    background: var(--bg-card); border: 1px solid var(--border);
    color: var(--text-primary); font-size: 13px; flex: 1;
}

/* ============ MESSAGING ============ */
.msg-layout {
    display: grid; grid-template-columns: 300px 1fr; gap: 0;
    background: var(--bg-card); border-radius: var(--radius);
    border: 1px solid var(--border); overflow: hidden; height: 600px;
}
.msg-sidebar {
    border-right: 1px solid var(--border); display: flex; flex-direction: column;
}
.msg-sidebar-header {
    padding: 16px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    font-weight: 600; font-size: 15px;
}
.msg-contact-list {
    flex: 1; overflow-y: auto;
}
.msg-contact {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 16px; cursor: pointer; transition: var(--transition);
    border-bottom: 1px solid rgba(42, 42, 64, 0.5);
}
.msg-contact:hover { background: rgba(108, 92, 231, 0.05); }
.msg-contact.active { background: rgba(108, 92, 231, 0.1); border-left: 3px solid var(--accent); }
.msg-contact-avatar {
    width: 40px; height: 40px; border-radius: 50%; background: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 600; flex-shrink: 0;
}
.msg-contact-info { flex: 1; min-width: 0; }
.msg-contact-name { font-size: 14px; font-weight: 500; display: flex; align-items: center; gap: 6px; }
.msg-contact-preview { font-size: 12px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.msg-unread {
    background: var(--accent); color: white; font-size: 10px;
    padding: 1px 6px; border-radius: 10px; font-weight: 600;
}
.msg-main { display: flex; flex-direction: column; }
.msg-header {
    padding: 16px 20px; border-bottom: 1px solid var(--border);
    font-weight: 600; font-size: 15px;
}
.msg-body {
    flex: 1; overflow-y: auto; padding: 20px; display: flex;
    flex-direction: column; gap: 12px;
}
.msg-input {
    padding: 12px 16px; border-top: 1px solid var(--border);
    display: flex; gap: 10px; align-items: center;
}
.msg-input input {
    flex: 1; padding: 10px 14px; border-radius: var(--radius-sm);
    background: var(--bg-secondary); border: 1px solid var(--border);
    color: var(--text-primary); font-size: 14px; outline: none;
}
.msg-input input:focus { border-color: var(--accent); }
.msg-input .btn-primary { flex: none; padding: 10px 20px; }
.msg-bubble {
    max-width: 70%; padding: 10px 14px; border-radius: 12px;
    font-size: 14px; line-height: 1.5;
}
.msg-bubble.mine {
    align-self: flex-end; background: var(--accent); color: white;
    border-bottom-right-radius: 4px;
}
.msg-bubble.theirs {
    align-self: flex-start; background: var(--bg-secondary);
    border: 1px solid var(--border); border-bottom-left-radius: 4px;
}
.msg-time { font-size: 10px; opacity: 0.6; margin-top: 4px; }
.msg-bubble.mine .msg-time { text-align: right; }

@media (max-width: 768px) {
    .msg-layout { grid-template-columns: 1fr; height: 500px; }
    .msg-sidebar { display: none; }
    .msg-sidebar.show { display: flex; position: absolute; left: 0; top: 0; bottom: 0; width: 100%; z-index: 10; background: var(--bg-card); }
}

/* Video card description */
.card-desc { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; line-height: 1.4; }

/* ============ MOBILE FIX ============ */
@media (max-width: 480px) {
    .navbar { padding: 0 12px; height: 56px; }
    .nav-logo { font-size: 16px; }
    .nav-logo img { height: 28px; width: 28px; }
    .page { padding: 16px 12px; }
    .section-title { font-size: 22px; }
    .featured-grid { grid-template-columns: 1fr; gap: 16px; }
    .products-grid { grid-template-columns: 1fr; gap: 16px; }
    .card-meta { flex-wrap: wrap; gap: 8px; }
    .card-actions { flex-wrap: wrap; }
    .modal { width: 95%; padding: 20px; }
    .product-form-grid { grid-template-columns: 1fr; }
    .order-update-form { flex-wrap: wrap; }
    .order-update-form select, .order-update-form input { width: 100%; }
    .msg-layout { grid-template-columns: 1fr; height: 70vh; }
    .msg-sidebar { display: none; }
    .msg-sidebar.show { display: flex; position: fixed; left: 0; top: 56px; bottom: 0; width: 100%; z-index: 100; background: var(--bg-card); }
    .account-layout { grid-template-columns: 1fr; }
    .account-sidebar { padding: 16px; }
    .team-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .admin-list-item { flex-direction: column !important; align-items: flex-start !important; gap: 8px; }
    .admin-list-item .item-actions { width: 100%; }
    .admin-list-item .item-actions button { flex: 1; }
    .tracking-step { gap: 10px; }
    .tracking-content h4 { font-size: 13px; }
    .tracking-content p { font-size: 11px; }
    .job-item { flex-direction: column; gap: 12px; }
    .about-section { padding: 20px; }
    .btn-buy { padding: 8px 16px; font-size: 13px; }
    .product-price { font-size: 18px; }
    .video-player-wrapper { width: 98%; padding: 10px; }
    .toast { left: 12px; right: 12px; }
    .mobile-nav a { font-size: 9px; }
    .mobile-nav a .nav-icon { font-size: 18px; }
}