/* ==========================================
   Festival Navigation App Styles
   お祭りナビゲーションアプリ CSS
   ========================================== */

:root {
    /* Festival Color Palette */
    --primary-red: #FF6B6B;
    --primary-orange: #FF8E53;
    --primary-yellow: #FFE66D;
    --secondary-teal: #4ECDC4;
    --secondary-mint: #95E1D3;
    --accent-purple: #A8E6CF;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --gray: #E9ECEF;
    --dark-gray: #6C757D;
    --black: #212529;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    
    /* Z-index */
    --z-header: 1000;
    --z-modal: 2000;
    --z-loading: 3000;
}

/* ==========================================
   Reset & Base Styles
   ========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--black);
    background: linear-gradient(135deg, #FFF5F5 0%, #FFFBEA 100%);
    line-height: 1.6;
    overflow-x: hidden;
}

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

input, select {
    font-family: inherit;
    font-size: inherit;
}

/* ==========================================
   Loading Screen
   ========================================== */

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-orange) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.festival-icon {
    font-size: 5rem;
    animation: bounce 1s infinite;
}

.loading-text {
    font-size: 1.5rem;
    font-weight: 700;
    margin: var(--spacing-lg) 0;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
    margin: var(--spacing-lg) auto 0;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================
   Tab Navigation
   ========================================== */

.tab-navigation {
    position: sticky;
    top: 60px;
    background: var(--white);
    display: flex;
    justify-content: space-around;
    border-bottom: 2px solid var(--gray);
    box-shadow: var(--shadow-sm);
    z-index: 999;
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: none;
    border: none;
    color: var(--dark-gray);
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
}

.tab-btn i {
    font-size: 1.3rem;
}

.tab-btn span {
    font-size: 0.85rem;
}

.tab-btn:active {
    transform: scale(0.95);
}

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

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
}

/* ==========================================
   Tab Content
   ========================================== */

.tab-content {
    display: none;
}

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

/* ==========================================
   Category Filter (Shop List)
   ========================================== */

.category-filter {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
}

.category-filter::-webkit-scrollbar {
    height: 4px;
}

.category-filter::-webkit-scrollbar-thumb {
    background: var(--dark-gray);
    border-radius: var(--radius-full);
}

.category-filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--white);
    color: var(--dark-gray);
    border: 2px solid var(--gray);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    transition: all var(--transition-fast);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.category-filter-btn:hover, .category-filter-btn:active {
    border-color: var(--primary-red);
    color: var(--primary-red);
}

.category-filter-btn.active {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
    color: var(--white);
    border-color: var(--primary-red);
}

/* ==========================================
   Notices Section
   ========================================== */

.notices-section {
    padding: var(--spacing-lg);
}

.notices-info {
    background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    color: #1565C0;
}

.notices-info i {
    margin-right: var(--spacing-xs);
}

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

.notice-card {
    background: var(--white);
    border: 2px solid var(--gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.notice-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--gray);
}

.notice-shop-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.notice-shop-number {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 700;
}

.notice-shop-name {
    font-weight: 700;
    color: var(--black);
}

.notice-time {
    font-size: 0.85rem;
    color: var(--dark-gray);
}

.notice-content {
    color: var(--black);
    line-height: 1.6;
    margin-top: var(--spacing-sm);
}

.notice-time-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gray);
}

.notice-time-ago {
    margin-left: auto;
    font-size: 0.85rem;
}

.notice-media {
    margin-top: var(--spacing-md);
}

.notice-media-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.notice-media-video {
    width: 100%;
    max-height: 400px;
    border-radius: var(--radius-md);
}

.admin-notice {
    border-left: 4px solid var(--primary-red);
}

.notice-badge {
    display: inline-block;
    background: linear-gradient(135deg, #FFE66D, #FFD93D);
    color: var(--black);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: var(--spacing-sm);
}

.no-notices {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--dark-gray);
}

.no-notices i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.3;
}

/* ==========================================
   Sponsor Advertisement
   ========================================== */

.sponsor-ad {
    margin: var(--spacing-lg) 0;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.ad-container {
    position: relative;
}

.ad-label {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.6);
    color: var(--white);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    z-index: 1;
}

.ad-image, .ad-video {
    width: 100%;
    display: block;
}

.ad-video {
    max-height: 300px;
    object-fit: cover;
}

.ad-link {
    display: block;
    text-decoration: none;
}

.ad-content {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #FFF8E1, #FFECB3);
}

.ad-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-xs);
}

.ad-description {
    font-size: 0.9rem;
    color: var(--dark-gray);
}

/* ==========================================
   Responsive Design Updates
   ========================================== */

@media (max-width: 768px) {
    .tab-navigation {
        top: 56px;
    }
    
    .tab-btn {
        padding: var(--spacing-sm);
    }
    
    .tab-btn i {
        font-size: 1.1rem;
    }
    
    .tab-btn span {
        font-size: 0.75rem;
    }
    
    .main-container {
        padding: 0;
    }
    
    .chat-section,
    .map-section,
    .shop-list-section,
    .notices-section {
        border-radius: 0;
        margin: 0;
    }
    
    .category-filter {
        border-radius: 0;
    }
}

@media (max-width: 480px) {
    .tab-btn span {
        font-size: 0.7rem;
    }
    
    .category-filter-btn {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* ==========================================
   Header
   ========================================== */

.app-header {
    position: sticky;
    top: 0;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-orange) 100%);
    color: var(--white);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    z-index: var(--z-header);
}

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

.app-title {
    font-size: 1.5rem;
    font-weight: 900;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

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

.icon-btn {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--white);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
    backdrop-filter: blur(10px);
}

.icon-btn:hover, .icon-btn:active {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0.95);
}

/* ==========================================
   Main Container
   ========================================== */

.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ==========================================
   Chat Section
   ========================================== */

.chat-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.chat-header {
    background: linear-gradient(135deg, var(--secondary-teal) 0%, var(--secondary-mint) 100%);
    color: var(--white);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.1rem;
}

.chat-status {
    margin-left: auto;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #4ADE80;
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.chat-messages {
    height: 400px;
    overflow-y: auto;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background: linear-gradient(to bottom, #F8FFFE 0%, var(--white) 100%);
}

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

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

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.assistant-message .message-avatar {
    background: linear-gradient(135deg, var(--secondary-teal), var(--secondary-mint));
}

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

.user-message .message-avatar {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
}

.message-content {
    max-width: 80%;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.assistant-message .message-content {
    background: var(--white);
    border: 2px solid var(--gray);
}

.user-message .message-content {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
    color: var(--white);
}

.message-content p {
    margin-bottom: var(--spacing-sm);
}

.message-content p:last-child {
    margin-bottom: 0;
}

.quick-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.suggestion-btn {
    background: linear-gradient(135deg, var(--primary-yellow), #FFD93D);
    color: var(--black);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

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

.typing-indicator {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--dark-gray);
    border-radius: var(--radius-full);
    animation: typing 1.4s infinite;
}

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

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

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

.chat-input-area {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-top: 2px solid var(--gray);
}

.voice-btn {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.voice-btn:hover, .voice-btn:active {
    transform: scale(0.95);
    box-shadow: var(--shadow-md);
}

.voice-btn.recording {
    animation: pulse-red 1s infinite;
}

@keyframes pulse-red {
    0%, 100% { 
        background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
    }
    50% { 
        background: linear-gradient(135deg, #DC143C, #FF6347);
    }
}

.chat-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray);
    border-radius: var(--radius-full);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

.send-btn {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--secondary-teal), var(--secondary-mint));
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.send-btn:hover, .send-btn:active {
    transform: scale(0.95);
    box-shadow: var(--shadow-md);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==========================================
   Map Section
   ========================================== */

.map-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.map-controls {
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-bottom: 2px solid var(--gray);
}

.filter-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    overflow-x: auto;
    padding-bottom: var(--spacing-xs);
}

.filter-group::-webkit-scrollbar {
    height: 4px;
}

.filter-group::-webkit-scrollbar-thumb {
    background: var(--dark-gray);
    border-radius: var(--radius-full);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--white);
    color: var(--dark-gray);
    border: 2px solid var(--gray);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.filter-btn:hover {
    border-color: var(--secondary-teal);
    color: var(--secondary-teal);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--secondary-teal), var(--secondary-mint));
    color: var(--white);
    border-color: var(--secondary-teal);
}

.search-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray);
    border-radius: var(--radius-full);
    transition: border-color var(--transition-fast);
}

.search-bar:focus-within {
    border-color: var(--secondary-teal);
}

.search-bar i {
    color: var(--dark-gray);
}

.search-bar input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
}

.map-container {
    width: 100%;
    height: 500px;
    background: var(--light-gray);
}

.map-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-top: 2px solid var(--gray);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
}

.legend-icon {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
}

/* ==========================================
   Shop List Section
   ========================================== */

.shop-list-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
}

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

.section-header h2 {
    font-size: 1.5rem;
    color: var(--primary-red);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sort-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sort-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    cursor: pointer;
    background: var(--white);
    transition: border-color var(--transition-fast);
}

.sort-select:focus {
    outline: none;
    border-color: var(--secondary-teal);
}

.shop-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.shop-card {
    background: var(--white);
    border: 2px solid var(--gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.shop-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
}

.shop-card.category-飲食::before {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
}

.shop-card.category-雑貨::before {
    background: linear-gradient(135deg, var(--secondary-teal), var(--secondary-mint));
}

.shop-card.category-ゲーム::before {
    background: linear-gradient(135deg, var(--primary-yellow), #FFD93D);
}

.shop-card.category-体験::before {
    background: linear-gradient(135deg, var(--accent-purple), #90EE90);
}

.shop-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-teal);
}

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

.shop-number {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 700;
}

.shop-category {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.85rem;
    color: var(--dark-gray);
}

.shop-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--black);
}

.shop-description {
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.shop-hours {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--dark-gray);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

.shop-distance {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--secondary-teal);
    font-size: 0.9rem;
    font-weight: 600;
}

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

.shop-notice-btn {
    width: 100%;
    padding: var(--spacing-sm);
    background: linear-gradient(135deg, #FFE66D, #FFD93D);
    color: var(--black);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.shop-notice-btn:hover, .shop-notice-btn:active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.shop-notice-btn.blinking {
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 10px rgba(255, 230, 109, 0.8);
    }
    50% {
        opacity: 0.6;
        box-shadow: 0 0 20px rgba(255, 230, 109, 1);
    }
}

.shop-notice-btn .new-badge {
    background: var(--primary-red);
    color: var(--white);
    padding: 2px 6px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    margin-left: var(--spacing-xs);
}

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

.shop-action-btn {
    flex: 1;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.shop-action-btn.primary {
    background: linear-gradient(135deg, var(--secondary-teal), var(--secondary-mint));
    color: var(--white);
}

.shop-action-btn.secondary {
    background: var(--white);
    color: var(--secondary-teal);
    border: 2px solid var(--secondary-teal);
}

.shop-action-btn:hover, .shop-action-btn:active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==========================================
   Modal
   ========================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-red), var(--primary-orange));
    color: var(--white);
}

.modal-header h2 {
    font-size: 1.3rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

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

.bus-route {
    margin-bottom: var(--spacing-lg);
}

.bus-route:last-child {
    margin-bottom: 0;
}

.bus-route h3 {
    font-size: 1.2rem;
    color: var(--primary-red);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.bus-times {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: var(--spacing-sm);
}

.bus-time {
    padding: var(--spacing-sm);
    background: var(--light-gray);
    border: 2px solid var(--gray);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.bus-time:hover {
    background: var(--secondary-mint);
    border-color: var(--secondary-teal);
    color: var(--secondary-teal);
}

.bus-time.next {
    background: linear-gradient(135deg, var(--primary-yellow), #FFD93D);
    border-color: var(--primary-yellow);
    animation: highlight 2s infinite;
}

@keyframes highlight {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 768px) {
    .app-title {
        font-size: 1.2rem;
    }
    
    .chat-messages {
        height: 300px;
    }
    
    .message-content {
        max-width: 85%;
    }
    
    .map-container {
        height: 400px;
    }
    
    .shop-list {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    .main-container {
        padding: var(--spacing-sm);
    }
    
    .filter-btn {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .quick-suggestions {
        flex-direction: column;
    }
    
    .suggestion-btn {
        width: 100%;
    }
}

/* ==========================================
   Utility Classes
   ========================================== */

.hidden {
    display: none !important;
}

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

.text-muted {
    color: var(--dark-gray);
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }