/* ===== App Layout Styles ===== */

.app-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
}

/* ===== Header ===== */
.app-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.app-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.app-logo:hover {
    color: var(--text-primary);
}

.app-logo .logo {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
}

/* App Navigation */
.app-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.app-nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    color: var(--text-secondary);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.app-nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.app-nav-link.active {
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

/* Header Actions */
.app-header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px 6px 6px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-menu-toggle:hover {
    background: var(--bg-secondary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-avatar img[src=""],
.user-avatar img:not([src]) {
    display: none;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow-hover);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.user-menu:hover .user-dropdown,
.user-menu.active .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.dropdown-item.text-danger {
    color: #ef4444;
}

.dropdown-item.text-danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* ===== Guest Actions ===== */
.guest-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.guest-actions .btn-login .btn-icon-mobile {
    display: none;
}

@media (max-width: 1199px) {
    .guest-actions .btn-register {
        display: none;
    }

    .guest-actions .btn-login .btn-text {
        display: none;
    }

    .guest-actions .btn-login .btn-icon-mobile {
        display: block;
    }

    .guest-actions .btn-login {
        width: 40px;
        height: 40px;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
    }
}

/* ===== Burger Toggle ===== */
.burger-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.burger-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.burger-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.burger-toggle.active span:nth-child(2) {
    opacity: 0;
}

.burger-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 991px) {
    .burger-toggle {
        display: flex;
    }

    .app-nav {
        display: none;
    }
}

/* ===== Mobile Menu Overlay ===== */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1040;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -320px;
    width: 320px;
    max-width: 85vw;
    height: 100%;
    background: var(--card-bg);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    transition: right 0.3s ease;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-header .logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.mobile-menu-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-primary);
    transition: background 0.2s ease;
}

.mobile-menu-close:hover {
    background: var(--bg-tertiary);
}

.mobile-menu-close svg {
    width: 20px;
    height: 20px;
}

.mobile-menu-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.mobile-menu-nav {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
}

.mobile-menu-nav li {
    margin-bottom: 4px;
}

.mobile-menu-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: background 0.2s ease;
    font-weight: 500;
}

.mobile-menu-nav a:hover,
.mobile-menu-nav a.active {
    background: var(--bg-secondary);
}

.mobile-menu-nav a.active {
    color: var(--primary);
}

.mobile-menu-nav i {
    width: 20px;
    text-align: center;
    opacity: 0.7;
}

.mobile-menu-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.mobile-menu-actions .btn {
    width: 100%;
    justify-content: center;
}

/* ===== Main Content ===== */
.app-main {
    flex: 1;
    padding: 32px 0;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Lobby Header ===== */
.lobby-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.lobby-header-content h1 {
    font-size: 2rem;
    margin-bottom: 4px;
}

.lobby-header-content p {
    color: var(--text-secondary);
    margin: 0;
}

/* ===== Quick Actions ===== */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.quick-action-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.quick-action-card::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 100px;
    height: 100px;
    background: var(--primary);
    border-radius: 50%;
    filter: blur(50px);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.quick-action-card:hover::before {
    opacity: 0.15;
}

.quick-action-icon {
    width: 52px;
    height: 52px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.quick-action-icon.accent {
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent);
}

.quick-action-icon.secondary {
    background: rgba(236, 72, 153, 0.1);
    color: var(--secondary);
}

.quick-action-content {
    flex: 1;
}

.quick-action-content h3 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.quick-action-content p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.quick-action-card > svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ===== Games Section ===== */
.games-section {
    margin-bottom: 40px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 1.25rem;
    margin: 0;
}

.games-filters {
    display: flex;
    gap: 8px;
}

.filter-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-family: 'Quicksand', sans-serif;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* ===== Games List ===== */
.games-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.game-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.game-card::before,
.game-card::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(50px);
    opacity: 0.2;
    transition: all var(--transition-slow);
    pointer-events: none;
}

.game-card::before {
    width: 120px;
    height: 120px;
    background: var(--primary);
    top: -50px;
    right: -50px;
}

.game-card::after {
    width: 80px;
    height: 80px;
    background: var(--secondary);
    bottom: -30px;
    left: -30px;
}

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

.game-card:hover::before {
    transform: translate(10px, 10px);
    opacity: 0.3;
}

.game-card:hover::after {
    transform: translate(-10px, -10px);
    opacity: 0.25;
}

.game-card.friend-game {
    border: 2px solid var(--secondary);
}

.friend-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 10px;
    background: var(--secondary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    z-index: 1;
}

.game-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

.game-host {
    display: flex;
    align-items: center;
    gap: 12px;
}

.host-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-tertiary);
}

.host-info {
    display: flex;
    flex-direction: column;
}

.host-name {
    font-weight: 600;
    color: var(--text-primary);
}

.game-mode {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.game-status {
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.game-status.waiting {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.game-status.playing {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.game-card-body {
    padding: 16px 20px;
    position: relative;
    z-index: 1;
}

.game-decks {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.deck-tag {
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.game-meta {
    display: flex;
    gap: 20px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.meta-item svg {
    color: var(--text-muted);
}

.game-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    position: relative;
    z-index: 1;
}

.game-players {
    display: flex;
}

.game-players img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    margin-left: -8px;
    background: var(--bg-tertiary);
}

.game-players img:first-child {
    margin-left: 0;
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--card-shadow-hover);
    display: flex;
    flex-direction: column;
    transform: scale(0.95) translateY(20px);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-content.modal-sm {
    max-width: 400px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 24px 0;
}

.modal-header h2 {
    font-size: 1.5rem;
    margin: 0;
}

.modal-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px 24px;
    border-top: 1px solid var(--border-color);
}

/* Form Sections */
.form-section {
    margin-bottom: 24px;
}

.form-section:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 8px;
}

.form-link {
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
    display: inline-block;
    margin-top: 12px;
}

/* Mode Selector */
.mode-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.mode-option input {
    display: none;
}

.mode-option-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 16px;
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mode-option input:checked + .mode-option-content {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.mode-option-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    margin-bottom: 12px;
    transition: all var(--transition-fast);
}

.mode-option input:checked + .mode-option-content .mode-option-icon {
    background: var(--primary);
    color: white;
}

.mode-option-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.mode-option-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Toggle Group */
.toggle-group {
    display: flex;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 4px;
}

.toggle-option {
    flex: 1;
}

.toggle-option input {
    display: none;
}

.toggle-option-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toggle-option input:checked + .toggle-option-btn {
    background: var(--card-bg);
    color: var(--text-primary);
    box-shadow: var(--card-shadow);
}

/* Range Slider */
.range-slider {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    outline: none;
    -webkit-appearance: none;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
    transition: transform var(--transition-fast);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Timer Options */
.timer-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.timer-option input {
    display: none;
}

.timer-option span {
    display: block;
    padding: 10px;
    text-align: center;
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.timer-option input:checked + span {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

/* Decks Selector */
.decks-selector {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.deck-checkbox input {
    display: none;
}

.deck-checkbox-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.deck-checkbox input:checked + .deck-checkbox-content {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.deck-checkbox-name {
    font-weight: 600;
}

.deck-checkbox-count {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Code Input */
.code-input-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}

.code-input {
    width: 200px;
    padding: 16px;
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-family: 'Quicksand', monospace;
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 8px;
    text-transform: uppercase;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.code-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-primary);
}

.code-input::placeholder {
    color: var(--text-muted);
    letter-spacing: 8px;
}

.text-center {
    text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .quick-actions {
        grid-template-columns: 1fr;
    }

    .games-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-header-container {
        height: 64px;
    }

    .user-name {
        display: none;
    }

    .lobby-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .lobby-header-actions {
        width: 100%;
    }

    .lobby-header-actions .btn {
        width: 100%;
    }

    .games-filters {
        overflow-x: auto;
        padding-bottom: 8px;
    }

    .modal-content {
        max-height: 100vh;
        border-radius: var(--radius-lg);
    }

    .mode-selector {
        grid-template-columns: 1fr;
    }

    .timer-options {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== App Footer ===== */
.app-footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    margin-top: auto;
}

.app-footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.footer-left {
    flex: 1;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-center {
    display: flex;
    gap: 24px;
}

.footer-link {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary);
}

.footer-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.footer-social {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.footer-social:hover {
    background: var(--primary);
    color: white;
}

/* ===== Toggle Switch ===== */
.toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.toggle-info {
    flex: 1;
    min-width: 0;
}

.toggle-label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.toggle-desc {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.toggle {
    position: relative;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
    cursor: pointer;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    top: 3px;
    background: white;
    border-radius: 50%;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.toggle input:checked + .toggle-slider {
    background: var(--primary);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

@media (max-width: 768px) {
    .app-footer-container {
        flex-direction: column;
        text-align: center;
        gap: 16px;
        padding: 0 20px;
    }

    .footer-left,
    .footer-right {
        justify-content: center;
    }

    .footer-center {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
    }
}