:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --background: #0a0e27;
    --surface: #131829;
    --surface-elevated: #1a1f35;
    --surface-hover: #22273f;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border: #1e2438;
    --border-light: #252b42;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7);
    --sidebar-width: 280px;
    --header-height: 72px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.app-container {
    min-height: 100vh;
    display: flex;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    color: var(--primary);
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    background: transparent;
    border: none;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    font-family: inherit;
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-item:hover {
    background: var(--surface-elevated);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
    color: var(--primary);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
}

.storage-card {
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
}

.storage-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.storage-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-weight: 500;
}

.storage-percent {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 600;
}

.storage-bar {
    height: 6px;
    background: var(--background);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.storage-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 3px;
    transition: width 0.3s ease;
    width: 0%;
}

.storage-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Main Wrapper */
.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-header {
    height: var(--header-height);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    position: sticky;
    top: 0;
    z-index: 90;
    backdrop-filter: blur(10px);
    background: rgba(19, 24, 41, 0.9);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.menu-toggle:hover {
    background: var(--surface-elevated);
    color: var(--text-primary);
}

.menu-toggle svg {
    width: 24px;
    height: 24px;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 500px;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-box input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    font-family: inherit;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-clear {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.search-clear:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.search-clear svg {
    width: 16px;
    height: 16px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    white-space: nowrap;
}

.header-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.header-btn:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
    border-color: var(--border-light);
    transform: translateY(-1px);
}

.header-btn.primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-md);
}

.header-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.header-btn.icon-only {
    padding: 0.625rem;
}

.header-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 0.25rem;
}

.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

.content-header {
    margin-bottom: 2rem;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.breadcrumb-item {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.875rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-family: inherit;
}

.breadcrumb-item:hover {
    color: var(--text-primary);
    background: var(--surface-elevated);
}

.breadcrumb-item.active {
    color: var(--primary);
    font-weight: 600;
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
}

.toolbar-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.toolbar-btn svg {
    width: 18px;
    height: 18px;
}

.toolbar-btn:hover:not(:disabled) {
    background: var(--surface-hover);
    color: var(--text-primary);
    border-color: var(--border-light);
}

.toolbar-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.toolbar-btn.danger:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--error);
    color: var(--error);
}

.upload-zone {
    margin-bottom: 2rem;
    background: var(--surface);
    border: 2px dashed var(--border);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.upload-zone::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.5s ease;
}

.upload-zone:hover {
    border-color: var(--primary);
    background: var(--surface-elevated);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.upload-zone:hover::before {
    left: 100%;
}

.upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    transform: scale(1.02);
}

.file-input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    top: 0;
    left: 0;
}

.upload-zone-content {
    position: relative;
    z-index: 1;
}

.upload-zone-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    color: var(--primary);
    opacity: 0.8;
}

.upload-zone h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.upload-zone p {
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.files-section {
    width: 100%;
}

.files-container {
    min-height: 400px;
    position: relative;
}

.loading-state,
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--surface-elevated);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1rem;
}

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

.empty-icon {
    width: 80px;
    height: 80px;
    color: var(--text-muted);
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state span {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    display: block;
}

.empty-upload-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    box-shadow: var(--shadow-md);
}

.empty-upload-btn svg {
    width: 20px;
    height: 20px;
}

.empty-upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
}

.files-grid.list-view {
    grid-template-columns: 1fr;
    gap: 0.5rem;
}

.file-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.file-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.file-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.file-card:hover::before {
    transform: scaleX(1);
}

.file-card.selected {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.file-card.selected::before {
    transform: scaleX(1);
}

.file-card.list-view {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
}

.file-icon-wrapper {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.file-card.list-view .file-icon-wrapper {
    width: 40px;
    height: 40px;
}

.file-icon {
    width: 24px;
    height: 24px;
    color: var(--primary);
}

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

.file-name {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.9375rem;
}

.file-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.file-size,
.file-date {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.file-size svg,
.file-date svg {
    width: 14px;
    height: 14px;
}

.upload-progress-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.upload-progress-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.upload-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.upload-progress-header h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 600;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--surface-elevated);
    color: var(--text-primary);
}

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

.upload-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.upload-item {
    background: var(--surface-elevated);
    border-radius: 10px;
    padding: 1rem;
}

.upload-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.upload-item-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9375rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.upload-item-percent {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-left: 1rem;
}

.upload-progress-bar {
    height: 6px;
    background: var(--background);
    border-radius: 3px;
    overflow: hidden;
}

.upload-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 3px;
    transition: width 0.2s ease;
    width: 0%;
}

.notification-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 400px;
}

.notification {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: slideIn 0.3s ease;
    position: relative;
    overflow: hidden;
}

.notification::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary);
}

.notification.success::before {
    background: var(--success);
}

.notification.error::before {
    background: var(--error);
}

.notification.warning::before {
    background: var(--warning);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-size: 0.9375rem;
}

.notification-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-wrapper {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .header-btn span {
        display: none;
    }

    .header-btn.icon-only {
        padding: 0.625rem;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }

    .main-header {
        padding: 0 1rem;
    }

    .search-box {
        max-width: 200px;
    }

    .files-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
    }

    .toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .toolbar-group {
        width: 100%;
        flex-wrap: wrap;
    }

    .notification-container {
        left: 1rem;
        right: 1rem;
        max-width: none;
    }
}

/* Auth Page Styles */
.auth-page {
    overflow: hidden;
}

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.auth-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.bg-gradient {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    opacity: 0.6;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.auth-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 1;
    backdrop-filter: blur(10px);
    background: rgba(19, 24, 41, 0.9);
    overflow: visible;
}

.auth-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo-section-auth {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.logo-icon-auth {
    width: 40px;
    height: 40px;
    color: var(--primary);
}

.logo-text-auth {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-subtitle {
    color: var(--text-muted);
    font-size: 0.9375rem;
    margin-top: 0.5rem;
}

.auth-tabs {
    display: flex;
    gap: 0.5rem;
    background: var(--surface-elevated);
    padding: 0.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.auth-tab {
    flex: 1;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.auth-tab:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

.auth-tab.active {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.auth-forms {
    position: relative;
    min-height: 400px;
}

.auth-form {
    display: none;
    animation: fadeIn 0.3s ease;
}

.auth-form.active {
    display: block;
}

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

.form-group {
    margin-bottom: 1rem;
}

#registerForm .form-group {
    margin-bottom: 0.75rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
}

#registerForm .form-group label {
    margin-bottom: 0.25rem;
    font-size: 0.8125rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    font-family: inherit;
}

#registerForm .form-group input {
    padding: 0.625rem 0.75rem;
    font-size: 0.8125rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.password-input-wrapper {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
}

.toggle-password:hover {
    color: var(--text-primary);
}

.eye-icon {
    width: 20px;
    height: 20px;
}

.password-strength {
    margin-top: 0.5rem;
}

#registerForm .password-strength {
    margin-top: 0.25rem;
}

#registerForm .password-strength .strength-bar {
    height: 3px;
    margin-bottom: 0.25rem;
}

#registerForm .password-strength .strength-label {
    font-size: 0.75rem;
}

.strength-bar {
    height: 4px;
    background: var(--surface-elevated);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.strength-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s ease, background 0.3s ease;
}

.strength-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

#registerForm .form-options {
    margin-bottom: 0.75rem;
    font-size: 0.8125rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
    cursor: pointer;
    accent-color: var(--primary);
}

.checkbox-label .link {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.checkbox-label .link:hover {
    color: var(--primary-light);
    text-decoration: underline;
}


.auth-submit-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: inherit;
    box-shadow: var(--shadow-md);
}

#registerForm .auth-submit-btn {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.auth-submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.auth-submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.auth-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.auth-footer {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.auth-footer p {
    color: var(--text-muted);
    font-size: 0.8125rem;
}

.auth-footer .link {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.auth-footer .link:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
    }

    .auth-card {
        padding: 2rem 1.5rem;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }
}