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

:root {
    --primary-color: #1A535C;
    --secondary-color: #4ECDC4;
    --accent-color: #FFE66D;
    --danger-color: #FF6B6B;
    --light-color: #F7FFF7;
    --dark-color: #2c3e50;
    --gray-color: #95a5a6;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    --gradient-danger: linear-gradient(135deg, var(--danger-color) 0%, #e74c3c 100%);
    --gradient-success: linear-gradient(135deg, var(--success-color) 0%, #2ecc71 100%);
    
    --border-radius: 12px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-small: 0.875rem;
    --font-size-base: 1rem;
    --font-size-large: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

h1 { font-size: var(--font-size-xxl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-large); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

/* 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 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

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

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

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

/* Navigation */
.navbar {
    background: rgba(26, 83, 92, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md) 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.hidden {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    color: white;
    font-size: var(--font-size-xl);
    margin: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background: rgba(78, 205, 196, 0.2);
    color: var(--accent-color);
}

.btn-logout {
    background: var(--gradient-danger);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: white;
    transition: var(--transition);
}

/* Buttons */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

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

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

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

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

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-small);
}

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

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Main Container */
.main-container {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

/* Sections */
.section {
    display: none;
    padding: var(--spacing-xxl) var(--spacing-lg);
    min-height: calc(100vh - 80px);
}

.section.active {
    display: block;
}

/* Welcome Section */
.welcome-hero {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    min-height: 70vh;
}

.hero-content h1 {
    font-size: 3rem;
    color: white;
    margin-bottom: var(--spacing-lg);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: var(--font-size-large);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-number {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: bold;
    color: var(--accent-color);
}

.stat-label {
    font-size: var(--font-size-small);
    opacity: 0.8;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-image {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
}

.health-benefits h3 {
    color: white;
    margin-bottom: var(--spacing-lg);
}

.health-benefits ul {
    list-style: none;
}

.health-benefits li {
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-sm) 0;
    position: relative;
    padding-left: var(--spacing-lg);
}

.health-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* Registration Section */
.registration-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.registration-header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xl);
    text-align: center;
}

.registration-header h2 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.registration-header p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.registration-form {
    padding: var(--spacing-xl);
}

.form-step {
    display: none;
}

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

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--primary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.1);
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-md);
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.checkbox-label:hover {
    border-color: var(--secondary-color);
    background: rgba(78, 205, 196, 0.05);
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkbox-label input[type="checkbox"]:checked + span {
    color: var(--primary-color);
    font-weight: 500;
}

.intensity-slider {
    position: relative;
}

.intensity-slider input[type="range"] {
    width: 100%;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    outline: none;
    -webkit-appearance: none;
}

.intensity-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
}

.intensity-slider input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.intensity-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

.form-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid #e0e0e0;
}

.form-progress {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-secondary);
    transition: width 0.3s ease;
    width: 25%;
}

.progress-text {
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

/* Dashboard Section */
.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.dashboard-header h2 {
    margin: 0;
    color: var(--primary-color);
}

.user-greeting {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.streak-badge {
    background: var(--gradient-danger);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: var(--font-size-small);
    font-weight: bold;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.dashboard-card {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.dashboard-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.dashboard-card h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.main-progress {
    grid-column: span 2;
    text-align: center;
}

.progress-circle {
    position: relative;
    display: inline-block;
    margin: var(--spacing-lg) 0;
}

.progress-ring {
    transform: rotate(-90deg);
}

.progress-ring-circle {
    fill: none;
    stroke: #e0e0e0;
    stroke-width: 8;
    stroke-dasharray: 339.292;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 0.5s ease;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.days-count {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.days-label {
    font-size: var(--font-size-base);
    color: var(--gray-color);
}

.progress-subtitle {
    color: var(--gray-color);
    margin: 0;
}

.card-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.money-amount {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.currency {
    font-size: var(--font-size-large);
    color: var(--gray-color);
}

.amount {
    font-size: 2rem;
    font-weight: bold;
    color: var(--success-color);
}

.money-subtitle {
    color: var(--gray-color);
    margin: 0;
    font-size: var(--font-size-small);
}

.health-list {
    space-y: var(--spacing-md);
}

.health-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(78, 205, 196, 0.1);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

.health-icon {
    font-size: var(--font-size-large);
}

.health-text {
    color: var(--primary-color);
    font-weight: 500;
}

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

.challenge-content p {
    margin-bottom: var(--spacing-lg);
    color: var(--dark-color);
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: rgba(78, 205, 196, 0.1);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: var(--primary-color);
}

.action-btn:hover {
    background: rgba(78, 205, 196, 0.2);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

.action-icon {
    font-size: var(--font-size-xl);
}

.chart-container {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Tracking Section */
.tracking-container {
    max-width: 1200px;
    margin: 0 auto;
}

.tracking-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: white;
}

.tracking-header h2 {
    color: white;
}

.tracking-header p {
    color: rgba(255, 255, 255, 0.9);
}

.tracking-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.tracking-card {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--box-shadow);
}

.craving-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.activities-list {
    space-y: var(--spacing-md);
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    transition: var(--transition);
    margin-bottom: var(--spacing-md);
}

.activity-item:hover {
    border-color: var(--secondary-color);
    background: rgba(78, 205, 196, 0.05);
}

.activity-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-content h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.activity-content p {
    margin-bottom: var(--spacing-md);
    color: var(--gray-color);
    font-size: var(--font-size-small);
}

.log-summary {
    space-y: var(--spacing-md);
}

.log-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid #e0e0e0;
}

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

.log-label {
    color: var(--gray-color);
}

.log-value {
    font-weight: bold;
    color: var(--primary-color);
}

.mood-selector {
    display: flex;
    gap: var(--spacing-sm);
}

.mood-btn {
    background: none;
    border: 2px solid #e0e0e0;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: var(--font-size-large);
    cursor: pointer;
    transition: var(--transition);
}

.mood-btn:hover,
.mood-btn.active {
    border-color: var(--secondary-color);
    background: rgba(78, 205, 196, 0.1);
    transform: scale(1.1);
}

.entries-list {
    max-height: 300px;
    overflow-y: auto;
}

.entry-item {
    padding: var(--spacing-md);
    border-left: 4px solid var(--secondary-color);
    background: rgba(78, 205, 196, 0.05);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    margin-bottom: var(--spacing-md);
}

.entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.entry-time {
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

.entry-intensity {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-size: var(--font-size-small);
    font-weight: bold;
}

.intensity-low {
    background: rgba(39, 174, 96, 0.2);
    color: var(--success-color);
}

.intensity-medium {
    background: rgba(243, 156, 18, 0.2);
    color: var(--warning-color);
}

.intensity-high {
    background: rgba(255, 107, 107, 0.2);
    color: var(--danger-color);
}

.no-entries {
    text-align: center;
    color: var(--gray-color);
    font-style: italic;
    padding: var(--spacing-xl);
}

/* Community Section */
.community-container {
    max-width: 1200px;
    margin: 0 auto;
}

.community-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: white;
}

.community-header h2 {
    color: white;
}

.community-header p {
    color: rgba(255, 255, 255, 0.9);
}

.community-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    color: white;
    cursor: pointer;
    transition: var(--transition);
}

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

.community-content {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    min-height: 500px;
}

.tab-content {
    display: none;
    padding: var(--spacing-xl);
}

.tab-content.active {
    display: block;
}

.forum-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid #e0e0e0;
}

.forum-posts {
    space-y: var(--spacing-lg);
}

.post-item {
    padding: var(--spacing-lg);
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.post-item:hover {
    border-color: var(--secondary-color);
    box-shadow: var(--box-shadow);
}

.post-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.post-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-large);
}

.post-info h4 {
    margin: 0;
    color: var(--primary-color);
}

.post-date {
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

.post-content {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.post-actions {
    display: flex;
    gap: var(--spacing-md);
}

.post-action {
    background: none;
    border: none;
    color: var(--gray-color);
    cursor: pointer;
    font-size: var(--font-size-small);
    transition: var(--transition);
}

.post-action:hover {
    color: var(--primary-color);
}

.success-stories {
    space-y: var(--spacing-lg);
}

.story-card {
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.story-card:hover {
    border-color: var(--secondary-color);
    box-shadow: var(--box-shadow);
}

.story-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.story-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: white;
}

.story-info h4 {
    margin: 0;
    color: var(--primary-color);
}

.story-date {
    font-size: var(--font-size-small);
    color: var(--success-color);
    font-weight: bold;
}

.story-content {
    margin-bottom: var(--spacing-md);
    font-style: italic;
    line-height: 1.6;
}

.story-stats {
    display: flex;
    gap: var(--spacing-lg);
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

.support-groups {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.group-card {
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition);
}

.group-card:hover {
    border-color: var(--secondary-color);
    box-shadow: var(--box-shadow);
}

.group-card h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.group-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-md) 0;
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

.chat-container {
    height: 400px;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    background: #fafafa;
}

.chat-message {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.message-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.message-content {
    flex: 1;
}

.message-header {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.message-author {
    font-weight: bold;
    color: var(--primary-color);
    font-size: var(--font-size-small);
}

.message-time {
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

.message-content p {
    margin: 0;
    line-height: 1.4;
}

.chat-input {
    display: flex;
    gap: var(--spacing-md);
}

.chat-input input {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
}

.chat-input input:focus {
    outline: none;
    border-color: var(--secondary-color);
}

/* Achievements Section */
.achievements-container {
    max-width: 1200px;
    margin: 0 auto;
}

.achievements-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.achievements-header h2 {
    margin: 0;
    color: var(--primary-color);
}

.achievement-summary {
    text-align: right;
}

.achievement-count {
    display: block;
    font-size: var(--font-size-large);
    color: var(--primary-color);
    font-weight: bold;
}

.achievement-percentage {
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
}

.achievement-card {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.achievement-card.unlocked {
    border: 2px solid var(--accent-color);
}

.achievement-card.unlocked::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-secondary);
}

.achievement-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.achievement-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.3;
    transition: var(--transition);
}

.achievement-card.unlocked .achievement-icon {
    opacity: 1;
}

.achievement-card h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.achievement-description {
    color: var(--gray-color);
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-md);
}

.achievement-progress {
    background: #e0e0e0;
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.achievement-progress-fill {
    height: 100%;
    background: var(--gradient-secondary);
    transition: width 0.3s ease;
}

.achievement-progress-text {
    font-size: var(--font-size-small);
    color: var(--gray-color);
}

.challenges-section {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--box-shadow);
}

.challenges-section h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.challenge-card {
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.challenge-card.active {
    border-color: var(--secondary-color);
    background: rgba(78, 205, 196, 0.05);
}

.challenge-card.completed {
    border-color: var(--success-color);
    background: rgba(39, 174, 96, 0.05);
}

.challenge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.challenge-status {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-size: var(--font-size-small);
    font-weight: bold;
}

.status-active {
    background: rgba(78, 205, 196, 0.2);
    color: var(--secondary-color);
}

.status-completed {
    background: rgba(39, 174, 96, 0.2);
    color: var(--success-color);
}

.status-locked {
    background: rgba(149, 165, 166, 0.2);
    color: var(--gray-color);
}

.challenge-description {
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

.challenge-reward {
    font-size: var(--font-size-small);
    color: var(--accent-color);
    font-weight: bold;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid #e0e0e0;
}

.modal-header h3 {
    margin: 0;
    color: var(--primary-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--gray-color);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--danger-color);
}

.modal-body {
    padding: var(--spacing-lg);
}

.emergency-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.emergency-option {
    padding: var(--spacing-lg);
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.emergency-option:hover {
    border-color: var(--secondary-color);
    background: rgba(78, 205, 196, 0.05);
    transform: translateY(-2px);
}

.option-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.emergency-option h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.emergency-option p {
    margin: 0;
    color: var(--gray-color);
    font-size: var(--font-size-small);
}

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

.breathing-circle {
    width: 200px;
    height: 200px;
    border: 4px solid var(--secondary-color);
    border-radius: 50%;
    margin: var(--spacing-xl) auto;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 4s ease;
    position: relative;
    background: rgba(78, 205, 196, 0.1);
}

.breathing-circle.inhale {
    transform: scale(1.3);
    background: rgba(78, 205, 196, 0.3);
}

.breathing-circle.hold {
    transform: scale(1.3);
    background: rgba(255, 230, 109, 0.3);
}

.breathing-circle.exhale {
    transform: scale(0.8);
    background: rgba(255, 107, 107, 0.3);
}

.breathing-text {
    font-size: var(--font-size-large);
    font-weight: bold;
    color: var(--primary-color);
}

.breathing-controls {
    margin: var(--spacing-xl) 0;
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.breathing-instructions {
    color: var(--gray-color);
    font-size: var(--font-size-small);
}

/* Notifications */
.notification-toast {
    position: fixed;
    top: 100px;
    right: 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 1500;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    max-width: 350px;
}

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

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.toast-icon {
    font-size: var(--font-size-xl);
}

.toast-message {
    font-size: var(--font-size-small);
    color: var(--dark-color);
}

.toast-close {
    background: none;
    border: none;
    font-size: var(--font-size-large);
    cursor: pointer;
    color: var(--gray-color);
    transition: var(--transition);
}

.toast-close:hover {
    color: var(--danger-color);
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xxl) var(--spacing-lg) var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section ul {
    margin: 0;
}

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

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    max-width: 1200px;
    margin: var(--spacing-xl) auto 0;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-small);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--primary-color);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-xl);
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .welcome-hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .main-progress {
        grid-column: span 1;
    }

    .tracking-grid {
        grid-template-columns: 1fr;
    }

    .achievements-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .challenges-grid {
        grid-template-columns: 1fr;
    }

    .community-tabs {
        flex-direction: column;
        align-items: center;
    }

    .tab-btn {
        width: 200px;
        text-align: center;
    }

    .emergency-options {
        grid-template-columns: 1fr;
    }

    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
    }

    .notification-toast {
        right: 10px;
        left: 10px;
        max-width: none;
        transform: translateY(-100px);
    }

    .notification-toast.show {
        transform: translateY(0);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .dashboard-card,
    .tracking-card {
        padding: var(--spacing-lg);
    }

    .form-navigation {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        grid-template-columns: 1fr;
    }

    .breathing-circle {
        width: 150px;
        height: 150px;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .achievement-summary {
        text-align: left;
    }

    .achievements-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.btn:focus,
.nav-link:focus,
input:focus,
select:focus,
textarea:focus,
button:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }
    
    .dashboard-card,
    .tracking-card,
    .achievement-card {
        border: 2px solid var(--primary-color);
    }
}

/* Print styles */
@media print {
    .navbar,
    .modal,
    .notification-toast,
    .btn,
    .footer {
        display: none !important;
    }
    
    .section {
        display: block !important;
        page-break-inside: avoid;
    }
    
    .main-container {
        margin-top: 0;
    }
}