/* ============================================
   RideRate - Transit Feedback App
   Design System & Styles
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #0066FF;
    --color-primary-dark: #0052CC;
    --color-primary-light: #E6F0FF;
    
    --color-success: #00C853;
    --color-success-light: #E8F5E9;
    
    --color-warning: #FF9800;
    --color-warning-light: #FFF3E0;
    
    --color-danger: #FF3B30;
    --color-danger-light: #FFEBEE;
    
    --color-neutral-50: #FAFAFA;
    --color-neutral-100: #F5F5F5;
    --color-neutral-200: #EEEEEE;
    --color-neutral-300: #E0E0E0;
    --color-neutral-400: #BDBDBD;
    --color-neutral-500: #9E9E9E;
    --color-neutral-600: #757575;
    --color-neutral-700: #616161;
    --color-neutral-800: #424242;
    --color-neutral-900: #212121;
    
    --color-bg: #F8F9FA;
    --color-card: #FFFFFF;
    --color-text: #1A1A2E;
    --color-text-secondary: #6B7280;
    
    /* MTA Line Colors */
    --line-l: #A7A9AC;
    --line-1: #EE352E;
    --line-2: #EE352E;
    --line-3: #EE352E;
    --line-4: #00933C;
    --line-5: #00933C;
    --line-6: #00933C;
    --line-7: #B933AD;
    --line-a: #0039A6;
    --line-c: #0039A6;
    --line-e: #0039A6;
    --line-n: #FCCC0A;
    --line-q: #FCCC0A;
    --line-r: #FCCC0A;
    --line-w: #FCCC0A;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 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;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--space-4);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Phone Frame */
.phone-frame {
    width: 100%;
    max-width: 390px;
    height: 844px;
    max-height: 95vh;
    background: var(--color-bg);
    border-radius: 40px;
    overflow: hidden;
    box-shadow: var(--shadow-xl), 0 0 0 12px #1a1a2e;
    display: flex;
    flex-direction: column;
}

/* Status Bar */
.status-bar {
    background: var(--color-card);
    padding: var(--space-2) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.status-icons {
    display: flex;
    gap: var(--space-2);
}

/* App Container */
.app-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
.app-header {
    background: var(--color-card);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-neutral-200);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-text);
}

.xp-badge {
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

/* Main Content */
.app-main {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* Section Styles */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.section-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text);
}

/* Live Indicator */
.live-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-danger);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.live-dot {
    width: 8px;
    height: 8px;
    background: var(--color-danger);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

/* Pulse Grid */
.pulse-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2);
}

.pulse-card {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast);
}

.pulse-card:hover {
    transform: translateY(-2px);
}

.pulse-line {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-2);
    font-weight: 700;
    font-size: var(--font-size-sm);
    color: white;
}

.pulse-score {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.pulse-score.good { color: var(--color-success); }
.pulse-score.okay { color: var(--color-warning); }
.pulse-score.bad { color: var(--color-danger); }

.pulse-trend {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

/* Rate Section */
.detected-route {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    background: var(--color-card);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
    box-shadow: var(--shadow-sm);
}

.route-badge {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: white;
    background: var(--line-l);
}

.route-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.route-name {
    font-weight: 600;
    color: var(--color-text);
}

.route-station {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.change-route-btn {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 500;
}

/* Rating Card */
.rating-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-md);
}

.rating-card h3 {
    text-align: center;
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-4);
    color: var(--color-text);
}

/* Mood Selector */
.mood-selector {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.mood-btn {
    width: 56px;
    height: 56px;
    font-size: 2rem;
    border-radius: var(--radius-lg);
    background: var(--color-neutral-100);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mood-btn:hover {
    transform: scale(1.1);
    background: var(--color-neutral-200);
}

.mood-btn.selected {
    transform: scale(1.15);
    box-shadow: var(--shadow-md);
}

.mood-btn[data-mood="1"].selected { background: #FFCDD2; }
.mood-btn[data-mood="2"].selected { background: #FFE0B2; }
.mood-btn[data-mood="3"].selected { background: #FFF9C4; }
.mood-btn[data-mood="4"].selected { background: #C8E6C9; }
.mood-btn[data-mood="5"].selected { background: #B2DFDB; }

.mood-label {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
    height: 20px;
}

/* Tags */
.tags-section {
    margin-bottom: var(--space-4);
}

.tags-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.tags-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.tag-btn {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    background: var(--color-neutral-100);
    color: var(--color-text);
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.tag-btn:hover {
    background: var(--color-neutral-200);
}

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

/* Comment Section */
.comment-section {
    margin-bottom: var(--space-4);
}

.add-comment-btn {
    width: 100%;
    padding: var(--space-3);
    border-radius: var(--radius-md);
    background: var(--color-neutral-100);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    transition: background var(--transition-fast);
}

.add-comment-btn:hover {
    background: var(--color-neutral-200);
}

.comment-input {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.comment-input textarea {
    flex: 1;
    padding: var(--space-3);
    border: 1px solid var(--color-neutral-300);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-sm);
    resize: none;
    height: 80px;
}

.comment-input textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.photo-btn {
    width: 48px;
    background: var(--color-neutral-100);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    transition: background var(--transition-fast);
}

.photo-btn:hover {
    background: var(--color-neutral-200);
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: var(--space-4);
    border-radius: var(--radius-md);
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-base);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.submit-btn:disabled {
    background: var(--color-neutral-300);
    color: var(--color-neutral-500);
    cursor: not-allowed;
}

.submit-btn:not(:disabled):hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

/* Feed Section */
.filter-btn {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 500;
}

.feed-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.feed-item {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    box-shadow: var(--shadow-sm);
}

.feed-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.feed-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-neutral-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.feed-meta {
    flex: 1;
}

.feed-user {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
}

.feed-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.feed-mood {
    font-size: 1.5rem;
}

.feed-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-top: var(--space-2);
}

.feed-tag {
    font-size: var(--font-size-xs);
    padding: var(--space-1) var(--space-2);
    background: var(--color-neutral-100);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
}

.feed-comment {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-neutral-200);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: #1a1a2e;
    color: white;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    opacity: 0;
    transition: all var(--transition-slow);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.toast-icon {
    width: 32px;
    height: 32px;
    background: var(--color-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.toast-text {
    display: flex;
    flex-direction: column;
}

.toast-text strong {
    font-size: var(--font-size-sm);
}

.toast-text span {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

/* Bottom Navigation */
.bottom-nav {
    background: var(--color-card);
    padding: var(--space-2) var(--space-4);
    padding-bottom: var(--space-4);
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid var(--color-neutral-200);
}

.nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2);
    color: var(--color-neutral-500);
    transition: color var(--transition-fast);
}

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

.nav-icon {
    font-size: 1.25rem;
}

.nav-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.nav-btn.rate-nav {
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    border-radius: 50%;
    margin-top: -24px;
    box-shadow: var(--shadow-md);
}

.nav-btn.rate-nav .nav-icon {
    color: white;
    font-size: 1.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.hidden {
    display: none;
}

.modal-content {
    background: var(--color-card);
    width: 100%;
    max-width: 390px;
    max-height: 70vh;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    overflow: hidden;
    animation: slideUp 0.3s ease;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-neutral-200);
}

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

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-neutral-100);
    display: flex;
    align-items: center;
    justify-content: center;
}

.route-search {
    padding: var(--space-3) var(--space-4);
}

.route-search input {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--color-neutral-300);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-sm);
}

.route-search input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.route-list {
    padding: var(--space-2) var(--space-4);
    max-height: 50vh;
    overflow-y: auto;
}

.route-option {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.route-option:hover {
    background: var(--color-neutral-100);
}

.route-option-badge {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
    color: white;
}

.route-option-info {
    display: flex;
    flex-direction: column;
}

.route-option-name {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.route-option-desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

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

/* Responsive */
@media (max-width: 420px) {
    .phone-frame {
        border-radius: 0;
        height: 100vh;
        max-height: 100vh;
        box-shadow: none;
    }
    
    body {
        padding: 0;
    }
}