/* CSS Variables - Light theme */
:root {
    --primary: #5C6BC0;
    --primary-dark: #3949AB;
    --secondary: #7986CB;
    --accent: #FF8A65;
    --background: #FAFAFA;
    --surface: #FFFFFF;
    --error: #E53935;
    --text-primary: #1A1A1A;
    --text-secondary: #616161;
    --text-hint: #9E9E9E;
    --divider: #E0E0E0;
    --shadow: rgba(0, 0, 0, 0.08);
    --shadow-strong: rgba(0, 0, 0, 0.12);
    --overlay: rgba(0, 0, 0, 0.4);
    
    --app-bar-height: 56px;
    --bottom-nav-height: 56px;
    --fab-size: 56px;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Roboto', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    position: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* App Container */
#app {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

/* App Bar */
.app-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--app-bar-height);
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-md);
    box-shadow: 0 2px 4px var(--shadow);
    z-index: 100;
}

.app-bar h1 {
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.15px;
}

.app-bar .icon-btn {
    position: absolute;
    right: var(--spacing-md);
}

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    margin-top: var(--app-bar-height);
    margin-bottom: var(--bottom-nav-height);
    padding: var(--spacing-md);
    padding-bottom: calc(var(--spacing-lg) + var(--fab-size));
    -webkit-overflow-scrolling: touch;
}

/* AI Screen has different padding */
#aiScreen {
    padding: 0;
    padding-top: var(--spacing-md);
}

#aiScreen .chat-messages {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

/* Screen Management */
.screen {
    display: none;
    animation: slideIn 0.3s ease-out;
}

.screen.active {
    display: block;
}

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 2px 4px var(--shadow);
}

.stat-icon {
    font-size: 40px;
    color: var(--primary);
}

.stat-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-info p {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Section */
.section {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.15px;
}

/* Categories Container */
.categories-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.category-card {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    color: white;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px var(--shadow);
}

.category-card:active {
    transform: scale(0.95);
}

.category-card h3 {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    text-transform: capitalize;
}

.category-card p {
    font-size: 24px;
    font-weight: 700;
}

/* Hobbies List */
.hobbies-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.hobby-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: 0 2px 4px var(--shadow);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.hobby-card:active {
    transform: scale(0.98);
    box-shadow: 0 4px 8px var(--shadow-strong);
}

.hobby-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.hobby-icon .material-icons {
    color: white;
    font-size: 24px;
}

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

.hobby-info h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hobby-info p {
    font-size: 14px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hobby-badge {
    background: var(--primary);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hobby-card-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.hobby-card-progress-bar {
    flex: 1;
    height: 4px;
    background: #E0E0E0;
    border-radius: 2px;
    overflow: hidden;
    min-width: 0;
}

.hobby-card-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
    transition: width 0.2s ease;
}

.hobby-card-progress-pct {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    flex-shrink: 0;
}

/* Search Bar */
.search-bar {
    background: var(--surface);
    border-radius: 28px;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 2px 4px var(--shadow);
}

.search-bar .material-icons {
    color: var(--text-hint);
    font-size: 20px;
}

.search-bar input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 16px;
    color: var(--text-primary);
}

.search-bar input::placeholder {
    color: var(--text-hint);
}

/* Filter Chips */
.filter-chips {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    -webkit-overflow-scrolling: touch;
}

.filter-chips::-webkit-scrollbar {
    display: none;
}

.chip {
    background: var(--surface);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--divider);
}

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

/* Goals Screen */
.goals-filter {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.goals-filter select {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--divider);
    border-radius: 8px;
    font-size: 14px;
    background: var(--surface);
    color: var(--text-primary);
}

.goals-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.goal-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: 0 2px 4px var(--shadow);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.goal-card:active {
    transform: scale(0.98);
}

.goal-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.goal-card-header h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
}

.goal-status-badge {
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 12px;
    text-transform: capitalize;
    flex-shrink: 0;
}

.goal-status-badge.not_started {
    background: #E0E0E0;
    color: var(--text-secondary);
}

.goal-status-badge.in_progress {
    background: rgba(106, 27, 154, 0.15);
    color: var(--primary);
}

.goal-status-badge.completed {
    background: rgba(76, 175, 80, 0.2);
    color: #2E7D32;
}

.goal-hobby, .goal-due {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.goal-progress-bar {
    height: 6px;
    background: #E0E0E0;
    border-radius: 3px;
    overflow: hidden;
    margin: var(--spacing-sm) 0 2px;
}

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

.goal-percent {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.goal-card-actions {
    display: flex;
    gap: var(--spacing-xs);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--divider);
}

.goal-card-actions .icon-btn {
    color: var(--text-secondary);
}

/* Activity Screen */
.activity-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.activity-stat-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 2px 4px var(--shadow);
}

.activity-stat-card .material-icons {
    font-size: 32px;
    color: var(--accent);
}

.activity-stat-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.activity-stat-card p {
    font-size: 12px;
    color: var(--text-secondary);
}

.activity-filter {
    margin-bottom: var(--spacing-md);
}

.activity-filter select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--divider);
    border-radius: 8px;
    font-size: 14px;
    background: var(--surface);
    color: var(--text-primary);
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.activity-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: 0 2px 4px var(--shadow);
}

.activity-card-main {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.activity-card .activity-icon {
    font-size: 28px;
    color: var(--primary);
    flex-shrink: 0;
}

.activity-card h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.activity-card p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.activity-note {
    font-size: 12px !important;
    color: var(--text-hint) !important;
    margin-top: 4px !important;
}

.activity-delete-btn {
    margin-left: auto;
    color: var(--text-secondary);
}

/* Detail progress percent (slider) */
.detail-progress-percent-block {
    margin-bottom: var(--spacing-md);
}

.progress-slider-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.progress-slider {
    flex: 1;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: #E0E0E0;
    border-radius: 4px;
    outline: none;
}

.progress-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 2px 4px var(--shadow);
}

.progress-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 4px var(--shadow);
}

.progress-percent-value {
    font-size: 16px;
    font-weight: 500;
    color: var(--primary);
    min-width: 40px;
    text-align: right;
}

.detail-progress-bar-mini {
    height: 6px;
    background: #E0E0E0;
    border-radius: 3px;
    overflow: hidden;
    margin-top: var(--spacing-sm);
}

.detail-progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 3px;
    transition: width 0.15s ease;
}

/* Detail progress editor (notes) */
.detail-progress-block {
    position: relative;
}

.progress-edit-wrap {
    margin-top: var(--spacing-sm);
}

.progress-edit-wrap textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--divider);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
}

.progress-edit-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.progress-edit-actions .btn-primary {
    flex: 1;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: 20vh;
}

.empty-icon {
    font-size: 80px;
    color: var(--text-hint);
    opacity: 0.5;
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 280px;
    margin: 0 auto;
}

/* FAB */
.fab {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + var(--spacing-md));
    right: var(--spacing-md);
    width: var(--fab-size);
    height: var(--fab-size);
    border-radius: 50%;
    background: var(--accent);
    color: white;
    border: none;
    box-shadow: 0 4px 8px var(--shadow-strong);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, box-shadow 0.2s;
    z-index: 90;
}

.fab:active {
    transform: scale(0.9);
    box-shadow: 0 2px 4px var(--shadow);
}

.fab .material-icons {
    font-size: 24px;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--surface);
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -2px 4px var(--shadow);
    z-index: 100;
    overflow-x: auto;
}

.bottom-nav::-webkit-scrollbar {
    display: none;
}

.nav-item {
    flex: 0 0 auto;
    min-width: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs) 6px;
    transition: color 0.2s;
    height: 100%;
}

.nav-item .material-icons {
    font-size: 22px;
}

.nav-label {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.nav-item.active {
    color: var(--primary);
}

.nav-item:active {
    opacity: 0.7;
}

/* Bottom Sheet */
.bottom-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    box-shadow: 0 -4px 12px var(--shadow-strong);
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 200;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.bottom-sheet.active {
    transform: translateY(0);
}

.bottom-sheet-content {
    overflow-y: auto;
    padding: var(--spacing-md);
    flex: 1;
}

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

.bottom-sheet-header h2 {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Form Styles */
.form-group {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px 12px 8px;
    font-size: 16px;
    border: 1px solid var(--divider);
    border-radius: 4px;
    outline: none;
    background: transparent;
    color: var(--text-primary);
    font-family: 'Roboto', sans-serif;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary);
}

.form-group label {
    position: absolute;
    left: 12px;
    top: 16px;
    font-size: 16px;
    color: var(--text-hint);
    pointer-events: none;
    transition: all 0.2s;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group select:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label,
.form-group select:not([value=""]) + label {
    top: 4px;
    font-size: 12px;
    color: var(--primary);
}

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

.form-error {
    font-size: 12px;
    color: var(--error);
    margin-top: var(--spacing-xs);
    display: block;
}

/* Buttons */
.btn-primary {
    width: 100%;
    padding: 14px 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    box-shadow: 0 2px 4px var(--shadow);
}

.btn-primary:active {
    transform: scale(0.98);
    background: var(--primary-dark);
}

.btn-text {
    padding: 8px 16px;
    background: transparent;
    color: var(--primary);
    border: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s;
}

.btn-text:active {
    background: rgba(106, 27, 154, 0.1);
}

.btn-text.danger {
    color: var(--error);
}

.btn-text.danger:active {
    background: rgba(244, 67, 54, 0.1);
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: inherit;
    transition: background 0.2s;
}

.icon-btn:active {
    background: rgba(255, 255, 255, 0.2);
}

.app-bar .icon-btn:active {
    background: rgba(255, 255, 255, 0.2);
}

.bottom-sheet-header .icon-btn:active {
    background: rgba(0, 0, 0, 0.05);
}

/* Detail Content */
.detail-content {
    padding-top: var(--spacing-md);
}

.detail-item {
    margin-bottom: var(--spacing-lg);
}

.detail-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.detail-value {
    font-size: 16px;
    color: var(--text-primary);
    line-height: 1.5;
}

.detail-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
    text-transform: capitalize;
}

/* Dialog */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.dialog-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.dialog {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    max-width: 320px;
    width: 90%;
    box-shadow: 0 8px 16px var(--shadow-strong);
    transform: scale(0.9);
    transition: transform 0.2s;
}

.dialog-overlay.active .dialog {
    transform: scale(1);
}

.dialog h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.dialog p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-lg);
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* Snackbar */
.snackbar {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + var(--spacing-md));
    left: var(--spacing-md);
    right: var(--spacing-md);
    background: #323232;
    color: white;
    padding: 14px 16px;
    border-radius: 4px;
    font-size: 14px;
    box-shadow: 0 4px 8px var(--shadow-strong);
    transform: translateY(calc(100% + var(--spacing-md) + var(--bottom-nav-height)));
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 250;
}

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

/* Ripple Effect */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Scrollbar Styles */
.main-content::-webkit-scrollbar {
    width: 4px;
}

.main-content::-webkit-scrollbar-track {
    background: transparent;
}

.main-content::-webkit-scrollbar-thumb {
    background: var(--divider);
    border-radius: 2px;
}

/* Loading State */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Responsive Adjustments */
@media (max-width: 360px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-container {
        grid-template-columns: 1fr;
    }
}

/* Dark Mode Support (Optional) */
/* Chat Screen Styles */
.chat-messages {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding-bottom: 80px;
}

.chat-message {
    display: flex;
    gap: var(--spacing-sm);
    animation: messageSlide 0.3s ease-out;
}

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

.user-message {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-message .message-avatar {
    background: var(--accent);
}

.message-avatar .material-icons {
    color: white;
    font-size: 20px;
}

.message-content {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: 12px 16px;
    box-shadow: 0 2px 4px var(--shadow);
    max-width: 75%;
}

.user-message .message-content {
    background: var(--primary);
    color: white;
}

.message-content p {
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.user-message .message-content p {
    color: white;
}

.chat-input-container {
    position: fixed;
    bottom: var(--bottom-nav-height);
    left: 0;
    right: 0;
    background: var(--surface);
    padding: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    box-shadow: 0 -2px 4px var(--shadow);
    z-index: 80;
}

.chat-input-container input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--divider);
    border-radius: 24px;
    outline: none;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--background);
}

.send-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background 0.2s;
}

.send-btn:active {
    transform: scale(0.9);
    background: var(--primary-dark);
}

.send-btn .material-icons {
    font-size: 20px;
}

.clear-chat-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--divider);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.2s, color 0.2s;
}

.clear-chat-btn:active {
    background: rgba(244, 67, 54, 0.1);
    color: var(--error);
}

.clear-chat-btn .material-icons {
    font-size: 22px;
}

.chat-loading {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: var(--surface);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--shadow);
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-hint);
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* Insights Screen Styles */
.insights-header {
    margin-bottom: var(--spacing-lg);
}

.insights-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.insights-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.insights-actions select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--divider);
    border-radius: 8px;
    font-size: 16px;
    background: var(--surface);
    color: var(--text-primary);
}

.insights-generate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.insights-generate-btn .material-icons {
    font-size: 20px;
}

.insights-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
}

.insights-loading .typing-indicator {
    margin: 0;
}

.insights-loading p {
    font-size: 14px;
    color: var(--text-secondary);
}

.insights-result {
    margin-top: var(--spacing-md);
}

.insights-result-card {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: 0 2px 8px var(--shadow);
    border-left: 4px solid var(--primary);
}

.insights-result-content {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: pre-wrap;
}

.insights-empty {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: 10vh;
}

.insights-empty .empty-icon {
    font-size: 64px;
    color: var(--text-hint);
    opacity: 0.6;
}