/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #F8B195;
    --secondary-color: #F67280;
    --accent-color: #C06C84;
    --dark-color: #6C5B7B;
    --darker-color: #355C7D;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gray: #e9ecef;
    --dark-gray: #6c757d;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-secondary: linear-gradient(135deg, var(--accent-color), var(--dark-color));
    --gradient-dark: linear-gradient(135deg, var(--dark-color), var(--darker-color));
    
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.15);
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    --transition: all 0.3s ease;
    --animation-duration: 0.3s;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--darker-color);
    background: var(--gradient-primary);
    min-height: 100vh;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--animation-duration), visibility var(--animation-duration);
}

.loading-content {
    text-align: center;
    color: var(--white);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: 8px;
}

.loading-content p {
    font-size: var(--font-size-base);
    opacity: 0.9;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn var(--animation-duration) ease-in;
}

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

.fade-out {
    animation: fadeOut var(--animation-duration) ease-out;
}

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

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--light-gray);
}

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--darker-color);
}

.logo i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--dark-gray);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.nav-btn:hover {
    background: var(--light-gray);
    color: var(--darker-color);
}

.nav-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
}

.nav-btn i {
    font-size: var(--font-size-base);
}

.user-menu {
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.user-avatar:hover {
    transform: scale(1.05);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

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

.user-dropdown button {
    width: 100%;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--darker-color);
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--border-radius);
}

.user-dropdown button:hover {
    background: var(--light-gray);
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    width: 100%;
}

.section {
    display: none;
    animation: fadeIn var(--animation-duration) ease-in;
}

.section.active {
    display: block;
}

/* Auth Section */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
}

.auth-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    width: 100%;
    max-width: 500px;
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.auth-header p {
    color: var(--dark-gray);
    font-size: var(--font-size-base);
}

.auth-tabs {
    display: flex;
    margin-bottom: 32px;
    border-radius: var(--border-radius);
    background: var(--light-gray);
    padding: 4px;
}

.auth-tab {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--dark-gray);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.auth-content {
    display: none;
}

.auth-content.active {
    display: block;
    animation: fadeIn var(--animation-duration) ease-in;
}

/* Forms */
.form-group {
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--darker-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(248, 177, 149, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Color Picker */
.color-picker {
    display: flex;
    align-items: center;
    gap: 16px;
}

.color-picker input[type="color"] {
    width: 50px;
    height: 40px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
}

.color-options {
    display: flex;
    gap: 8px;
}

.color-option {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.color-option:hover {
    transform: scale(1.1);
    border-color: var(--darker-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    justify-content: center;
}

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

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

.btn-secondary {
    background: var(--gray);
    color: var(--darker-color);
}

.btn-secondary:hover {
    background: var(--dark-gray);
    color: var(--white);
}

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

.btn-danger:hover {
    background: #c82333;
    transform: translateY(-2px);
}

/* Dashboard */
.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.dashboard-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--darker-color);
}

.dashboard-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.filter-group select {
    padding: 8px 16px;
    border: 2px solid var(--gray);
    border-radius: var(--border-radius);
    background: var(--white);
    color: var(--darker-color);
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xl);
}

.stat-content h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--darker-color);
    margin-bottom: 4px;
}

.stat-content p {
    color: var(--dark-gray);
    font-size: var(--font-size-sm);
}

.dashboard-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 32px;
}

.tasks-today,
.members-ranking {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.tasks-today h3,
.members-ranking h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--darker-color);
    margin-bottom: 20px;
}

/* Task Lists */
.task-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.task-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
}

.task-item:hover {
    background: var(--gray);
    transform: translateX(4px);
}

.task-item.completed {
    opacity: 0.7;
}

.task-item.completed .task-name {
    text-decoration: line-through;
}

.task-item.overdue {
    border-left: 4px solid var(--danger);
}

.task-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray);
    border-radius: 4px;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.task-checkbox.checked {
    background: var(--success);
    border-color: var(--success);
}

.task-checkbox.checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--white);
    font-size: 12px;
    font-weight: bold;
}

.task-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.task-content {
    flex: 1;
}

.task-name {
    font-weight: 500;
    color: var(--darker-color);
    margin-bottom: 4px;
}

.task-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--font-size-xs);
    color: var(--dark-gray);
}

.task-points {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Task Grid */
.task-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.task-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.task-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.task-card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--darker-color);
}

.task-card-menu {
    position: relative;
}

.task-menu-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--dark-gray);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.task-menu-btn:hover {
    background: var(--light-gray);
}

.task-card-content {
    margin-bottom: 16px;
}

.task-card-description {
    color: var(--dark-gray);
    font-size: var(--font-size-sm);
    margin-bottom: 12px;
}

.task-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

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

.task-assignee {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

/* Ranking */
.ranking-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.ranking-position {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gradient-secondary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.ranking-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.ranking-info {
    flex: 1;
}

.ranking-name {
    font-weight: 500;
    color: var(--darker-color);
    margin-bottom: 2px;
}

.ranking-score {
    font-size: var(--font-size-xs);
    color: var(--dark-gray);
}

/* Podium */
.podium {
    display: flex;
    align-items: end;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    padding: 40px 20px;
}

.podium-place {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.podium-member {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    min-width: 120px;
}

.podium-place.first .podium-member {
    background: var(--gradient-primary);
    color: var(--white);
    transform: scale(1.1);
}

.podium-place.second .podium-member {
    background: var(--gradient-secondary);
    color: var(--white);
}

.podium-place.third .podium-member {
    background: var(--gradient-dark);
    color: var(--white);
}

.member-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.member-name {
    font-weight: 600;
    text-align: center;
}

.member-points {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.podium-base {
    width: 80px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.podium-place.first .podium-base {
    height: 80px;
    background: var(--gradient-primary);
}

.podium-place.third .podium-base {
    height: 40px;
    background: var(--gradient-dark);
}

/* Achievements */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.achievement-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.achievement-card.earned {
    background: var(--gradient-primary);
    color: var(--white);
}

.achievement-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: 12px;
}

.achievement-title {
    font-weight: 600;
    margin-bottom: 8px;
}

.achievement-description {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* Chart Container */
.chart-container {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 32px;
}

.chart-container h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--darker-color);
    margin-bottom: 20px;
}

.chart-container canvas {
    max-height: 400px;
}

/* History List */
.history-list {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.history-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-bottom: 1px solid var(--gray);
}

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

.history-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--success);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
}

.history-content {
    flex: 1;
}

.history-title {
    font-weight: 500;
    color: var(--darker-color);
    margin-bottom: 4px;
}

.history-meta {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

/* Settings */
.settings-group {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.settings-group h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--darker-color);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray);
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray);
}

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

.setting-item label {
    flex: 1;
    margin-bottom: 0;
}

.group-code-display {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.group-code-display span {
    font-family: monospace;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--darker-color);
    background: var(--light-gray);
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
}

/* Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--gray);
    transition: var(--transition);
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--white);
    transition: var(--transition);
    border-radius: 50%;
}

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

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Members Grid */
.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.member-card {
    background: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
}

.member-card:hover {
    background: var(--gray);
}

.member-card-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.member-card-name {
    font-weight: 500;
    color: var(--darker-color);
    margin-bottom: 8px;
}

.member-card-stats {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.modal-content {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition);
}

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

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

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--darker-color);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--dark-gray);
    font-size: var(--font-size-xl);
    cursor: pointer;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--light-gray);
}

.modal form {
    padding: 0 24px 24px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
}

/* Invite Modal */
.invite-content {
    padding: 0 24px 24px;
}

.invite-code {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--light-gray);
    padding: 16px;
    border-radius: var(--border-radius);
    margin: 16px 0;
}

.invite-code span {
    flex: 1;
    font-family: monospace;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--darker-color);
}

.invite-instructions {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
    text-align: center;
}

/* Notifications */
.notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.notification {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 16px 20px;
    max-width: 350px;
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(100%);
    transition: var(--transition);
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-left: 4px solid var(--success);
}

.notification.error {
    border-left: 4px solid var(--danger);
}

.notification.warning {
    border-left: 4px solid var(--warning);
}

.notification.info {
    border-left: 4px solid var(--info);
}

.notification-icon {
    font-size: var(--font-size-lg);
}

.notification.success .notification-icon {
    color: var(--success);
}

.notification.error .notification-icon {
    color: var(--danger);
}

.notification.warning .notification-icon {
    color: var(--warning);
}

.notification.info .notification-icon {
    color: var(--info);
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 500;
    color: var(--darker-color);
    margin-bottom: 4px;
}

.notification-message {
    font-size: var(--font-size-sm);
    color: var(--dark-gray);
}

.notification-close {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: var(--dark-gray);
    cursor: pointer;
    border-radius: 50%;
    transition: var(--transition);
}

.notification-close:hover {
    background: var(--light-gray);
}

/* Filter Tabs */
.filter-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.filter-tab {
    padding: 8px 16px;
    border: 2px solid var(--gray);
    background: var(--white);
    color: var(--dark-gray);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.filter-tab:hover:not(.active) {
    background: var(--light-gray);
}

/* Footer */
.footer {
    background: var(--darker-color);
    color: var(--white);
    text-align: center;
    padding: 20px;
    margin-top: auto;
}

.footer p {
    margin: 0;
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        padding: 0 16px;
        height: 60px;
    }
    
    .logo span {
        display: none;
    }
    
    .nav-menu {
        gap: 4px;
    }
    
    .nav-btn {
        padding: 8px 12px;
        font-size: var(--font-size-xs);
    }
    
    .nav-btn span {
        display: none;
    }
    
    .main-content {
        padding: 20px 16px;
    }
    
    .auth-card {
        padding: 24px;
        margin: 0 16px;
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .dashboard-actions {
        justify-content: space-between;
    }
    
    .dashboard-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .dashboard-content {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .task-grid {
        grid-template-columns: 1fr;
    }
    
    .podium {
        flex-direction: column;
        align-items: center;
    }
    
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .members-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        width: 95%;
        margin: 0 16px;
    }
    
    .notification-container {
        top: 10px;
        right: 10px;
        left: 10px;
    }
    
    .notification {
        max-width: none;
    }
}

@media (max-width: 480px) {
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
    
    .achievements-grid,
    .members-grid {
        grid-template-columns: 1fr;
    }
    
    .auth-card {
        padding: 20px;
    }
    
    .podium-member {
        min-width: 100px;
        padding: 16px;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .modal,
    .notification-container {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
        max-width: none;
    }
    
    .section {
        display: block !important;
        page-break-after: always;
    }
    
    .section:last-child {
        page-break-after: auto;
    }
}