/* Ripple - Mobile-First Styles */

:root {
    --primary-color: #13a4ec;
    --secondary-color: #00d4aa;
    --success-color: #4caf50;
    --danger-color: #f44336;
    --warning-color: #ff9800;
    --city-green: #2e7d32;
    --dark-bg: #1a1a1a;
    --light-bg: #f5f5f5;
    --card-bg: #ffffff;
    --text-primary: #212121;
    --text-secondary: #757575;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --border-radius: 16px;
    --safe-area-inset-bottom: env(safe-area-inset-bottom, 0);
    --safe-area-inset-top: env(safe-area-inset-top, 0);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--light-bg);
    color: var(--text-primary);
    line-height: 1.6;
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

#app {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Login Screen */
.login-container {
    display: none;
    height: 100vh;
    background: linear-gradient(135deg, #13a4ec 0%, #00d4aa 100%);
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-container.active {
    display: flex;
}

.login-content {
    width: 100%;
    max-width: 360px;
    background: white;
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.ripple-logo {
    display: inline-block;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

.auth-toggle {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.auth-toggle a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.onboarding-header {
    text-align: center;
    margin-bottom: 2rem;
}

.onboarding-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.onboarding-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.login-hint {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* App Container */
.app-container {
    display: none;
    height: 100vh;
    flex-direction: column;
    background: var(--light-bg);
}

.app-container.active {
    display: flex;
}

/* App Header */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    padding-top: var(--safe-area-inset-top);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    height: 56px;
}

.header-content h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-action {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem;
    cursor: pointer;
}

/* Main Content */
.app-content {
    flex: 1;
    overflow-y: auto;
    padding-top: calc(56px + var(--safe-area-inset-top));
    padding-bottom: calc(64px + var(--safe-area-inset-bottom));
    -webkit-overflow-scrolling: touch;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding-bottom: var(--safe-area-inset-bottom);
    z-index: 100;
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 0;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: color 0.3s ease;
}

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

.nav-item.nav-fab {
    flex: 0 0 auto;
}

.nav-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 0.25rem;
}

.nav-label {
    font-size: 0.625rem;
    font-weight: 500;
}

.fab-button {
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(19, 164, 236, 0.3);
    margin-top: -20px;
}

.fab-button svg {
    width: 24px;
    height: 24px;
    color: white;
}

/* Screens */
.screen {
    display: none;
    min-height: 100%;
}

.screen.active {
    display: block;
}

/* Home Screen */
.home-container {
    padding: 1rem;
}

.city-card {
    background: linear-gradient(135deg, var(--city-green) 0%, var(--primary-color) 100%);
    color: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.city-card h2 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* Ripple Score */
.ripple-score-container {
    text-align: center;
    padding: 2rem 0;
}

.ripple-animation {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.ripple-circle {
    position: absolute;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    opacity: 0;
    animation: ripple-expand 3s infinite ease-out;
}

.ripple-1 {
    width: 100%;
    height: 100%;
    animation-delay: 0s;
}

.ripple-2 {
    width: 100%;
    height: 100%;
    animation-delay: 1s;
}

.ripple-3 {
    width: 100%;
    height: 100%;
    animation-delay: 2s;
}

@keyframes ripple-expand {
    0% {
        transform: scale(0.5);
        opacity: 1;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

.score-display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.score-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.score-value {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    line-height: 1;
}

/* Quick Actions */
.quick-actions {
    margin-bottom: 2rem;
}

/* Buttons */
.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-full {
    width: 100%;
}

.btn-secondary {
    background: var(--light-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
}

.btn-small {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
}

.btn-icon {
    font-size: 1.25rem;
    margin-right: 0.5rem;
}

/* Activity Sections */
.activity-section,
.events-section {
    margin-bottom: 2rem;
}

.activity-section h3,
.events-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.activity-feed {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.activity-item {
    background: white;
    padding: 1rem;
    border-radius: 12px;
    border-left: 3px solid var(--primary-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.activity-item:active {
    transform: scale(0.98);
    background: var(--light-bg);
}

.activity-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.activity-type {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.875rem;
}

.activity-date {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.activity-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.activity-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.activity-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background: rgba(19, 164, 236, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.625rem;
    font-weight: 500;
}

/* Events List */
.events-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.event-card {
    background: white;
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.event-date {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.event-title {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.event-location {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Timeline Screen */
.timeline-container {
    padding: 1rem;
}

.filter-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    background: white;
    padding: 0.25rem;
    border-radius: 12px;
}

.filter-tab {
    flex: 1;
    padding: 0.5rem;
    background: none;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.timeline-feed {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.timeline-item {
    background: white;
    padding: 1rem;
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.timeline-item:active {
    transform: scale(0.98);
    background: var(--light-bg);
}

.timeline-item.mine {
    border-left: 3px solid var(--success-color);
}

/* Movements Screen */
.movements-container {
    padding: 1rem;
}

.movements-header {
    margin-bottom: 1rem;
}

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

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

.movement-card {
    background: white;
    padding: 1.25rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.movement-card:active {
    transform: scale(0.98);
    border-color: var(--primary-color);
}

.movement-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.movement-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.movement-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.movement-count {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--city-green);
}

/* Settings Screen */
.settings-container {
    padding: 1rem;
}

.settings-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.settings-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.settings-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.settings-item label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.settings-value {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.settings-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.privacy-info,
.about-info {
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Forms */
.form-container {
    padding: 1rem;
    padding-bottom: 4rem;
    overflow-y: auto;
    max-height: calc(100vh - 120px);
    -webkit-overflow-scrolling: touch;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input[type="text"],
.form-group input[type="date"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    background: white;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    font-family: inherit;
}

.form-group select[multiple] {
    height: auto;
    min-height: 100px;
}

/* Emoji Selector */
.emoji-selector {
    display: flex;
    gap: 0.5rem;
}

.emoji-btn {
    background: var(--light-bg);
    border: 2px solid var(--border-color);
    padding: 0.75rem;
    border-radius: 12px;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.emoji-btn:active {
    transform: scale(0.9);
}

.emoji-btn.selected {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Privacy Options */
.privacy-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.privacy-option {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 12px;
    cursor: pointer;
    position: relative;
}

.privacy-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.privacy-option-content {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.privacy-option-title {
    font-weight: 500;
    color: var(--text-primary);
}

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

.privacy-option input[type="radio"]:checked + .privacy-option-content {
    color: var(--primary-color);
}

.privacy-option input[type="radio"]:checked ~ .privacy-option-content .privacy-option-title {
    color: var(--primary-color);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.modal-sheet {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-radius: 24px 24px 0 0;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
}

.modal-sheet.modal-full {
    top: 0;
    border-radius: 0;
    max-height: 100vh;
    height: 100vh;
    overflow: hidden;
}

#log-action-modal .modal-sheet {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

#log-action-modal form {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    position: relative;
}

#log-action-modal .form-container {
    max-height: none;
    padding-bottom: 6rem;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

.modal-header h2 {
    flex: 1;
    text-align: center;
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close,
.modal-back,
.modal-save,
.modal-action {
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    padding: 0.5rem;
}

.modal-close {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.modal-save,
.modal-action {
    color: var(--primary-color);
    font-weight: 600;
}

/* Action Grid */
.action-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1.5rem;
    overflow-y: auto;
}

.action-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--light-bg);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-tile:active {
    transform: scale(0.95);
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.action-icon {
    font-size: 2rem;
}

.action-label {
    font-size: 0.75rem;
    text-align: center;
    font-weight: 500;
}

/* Detail Content */
.detail-content {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.detail-header {
    margin-bottom: 1.5rem;
}

.detail-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.detail-meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.detail-section {
    margin-bottom: 1.5rem;
}

.detail-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.detail-note {
    line-height: 1.6;
    color: var(--text-primary);
}

.milestone-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.milestone-item {
    padding: 0.75rem;
    background: var(--light-bg);
    border-radius: 8px;
}

.milestone-date {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
}

/* Toast */
.toast {
    position: fixed;
    bottom: calc(80px + var(--safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark-bg);
    color: white;
    padding: 0.875rem 1.5rem;
    border-radius: 24px;
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 2000;
    max-width: calc(100% - 2rem);
    text-align: center;
}

.toast.show {
    opacity: 1;
    visibility: visible;
}

/* Responsive */
@media (min-width: 768px) {
    .login-content,
    .modal-sheet {
        max-width: 480px;
        margin: 0 auto;
    }
    
    .app-container {
        max-width: 768px;
        margin: 0 auto;
        box-shadow: 0 0 40px rgba(0,0,0,0.1);
    }
}
/* Feed Screen */
.feed-container {
    padding: 1rem;
}

.feed-header {
    margin-bottom: 1rem;
}

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

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

/* Friends Screen */
.friends-container {
    padding: 1rem;
}

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

.friends-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

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

.friend-card {
    background: white;
    padding: 1.25rem;
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
}

.friend-info {
    flex: 1;
}

.friend-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

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

.friend-stats {
    text-align: right;
}

.friend-actions {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 600;
}

/* Invite Modal */
.invite-content {
    padding: 1.5rem;
}

.invite-description {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.invite-link-container {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.invite-link-container input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.875rem;
    background: var(--light-bg);
}

/* Responsive adjustments */
@media (min-width: 768px) {
    .login-content,
    .modal-sheet {
        max-width: 480px;
        margin: 0 auto;
    }
    
    .app-container {
        max-width: 768px;
        margin: 0 auto;
        box-shadow: 0 0 40px rgba(0,0,0,0.1);
    }
    
    .friends-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}