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

:root {
    --primary-color: #FF6B6B;
    --secondary-color: #4ECDC4;
    --accent-color: #FFE66D;
    --dark-color: #2C3E50;
    --light-color: #ECF0F1;
    --gray-color: #95A5A6;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.2);
}

body {
    font-family: 'Poppins', 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f8f9fa;
    overflow-x: hidden;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)),
                url('https://images.unsplash.com/photo-1590559899731-a382839e5549?q=80&w=2000') center/cover;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.6) 0%, rgba(118, 75, 162, 0.6) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-tags {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.tag {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    border: 1px solid rgba(255,255,255,0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    font-size: 1.2rem;
    animation: bounce 2s infinite;
    z-index: 2;
}

/* Navigation */
.navbar {
    background: white;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Section Styles */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--gradient-1);
    border-radius: 2px;
}

/* Trip Overview */
.trip-overview {
    background: white;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.overview-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.overview-card:nth-child(2) {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.overview-card:nth-child(3) {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.overview-card:nth-child(4) {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.overview-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.overview-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.overview-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.overview-card p {
    font-size: 1rem;
    opacity: 0.9;
}

/* Filter Buttons */
.filters {
    background: var(--light-color);
}

.filter-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    background: white;
    border: 2px solid var(--gray-color);
    padding: 0.7rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
}

.filter-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

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

/* Itinerary Cards */
.itinerary {
    background: #f8f9fa;
}

.day-card {
    background: white;
    border-radius: 15px;
    margin-bottom: 2rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    animation: fadeInUp 0.6s ease-out;
}

.day-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.day-card.hidden {
    display: none;
}

.day-header {
    background: var(--gradient-1);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.day-number {
    font-size: 1.8rem;
    font-weight: 700;
}

.day-date {
    font-size: 1.2rem;
    font-weight: 300;
}

.day-content {
    padding: 2rem;
}

.day-title {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.day-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.tag-small {
    background: var(--accent-color);
    color: var(--dark-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Activities */
.activities {
    margin: 1.5rem 0;
}

.activity {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--light-color);
}

.activity:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.activity-time {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1rem;
}

.activity-details h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.activity-details p {
    color: #555;
    margin-bottom: 0.5rem;
}

.activity-details ul {
    margin-left: 1.5rem;
    color: #555;
}

.activity-details li {
    margin-bottom: 0.3rem;
}

.location {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.activity-link {
    display: inline-block;
    margin-top: 0.5rem;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.activity-link:hover {
    color: var(--primary-color);
}

/* Day Tips */
.day-tip {
    background: #FFF9E6;
    border-left: 4px solid var(--accent-color);
    padding: 1rem;
    margin-top: 1.5rem;
    border-radius: 5px;
}

.day-tip strong {
    color: var(--dark-color);
}

/* Day Options */
.day-options {
    background: var(--light-color);
    padding: 1.5rem;
    border-radius: 10px;
    margin: 1.5rem 0;
}

.day-options h4 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.option-label {
    display: block;
    margin-bottom: 0.8rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: background 0.3s ease;
    border-radius: 5px;
}

.option-label:hover {
    background: rgba(255,255,255,0.5);
}

.option-label input {
    margin-right: 0.5rem;
}

.option-card {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.option-card:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.option-card h5 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Map Section */
.map-section {
    background: white;
}

.map-container {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.map-note {
    text-align: center;
    margin-top: 1rem;
    color: var(--gray-color);
}

/* Restaurants */
.restaurants {
    background: var(--light-color);
}

.restaurant-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.restaurant-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    text-align: center;
}

.restaurant-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.restaurant-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.restaurant-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--dark-color);
}

.restaurant-card p {
    color: #555;
    margin-bottom: 1rem;
}

.restaurant-meta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.restaurant-meta span {
    background: var(--light-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* Tips Section */
.tips-section {
    background: white;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tip-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.tip-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.tip-card ul {
    list-style: none;
}

.tip-card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.tip-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* Budget Section */
.budget-section {
    background: var(--light-color);
}

.budget-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.budget-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.budget-item:hover {
    transform: translateY(-5px);
}

.budget-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.budget-item p {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.budget-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.budget-item.total {
    background: var(--gradient-1);
    color: white;
    grid-column: span 2;
}

.budget-item.total h4,
.budget-item.total p,
.budget-item.total .budget-amount {
    color: white;
}

.budget-usd {
    font-size: 1.2rem;
    margin-top: 0.5rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section a {
    display: block;
    color: var(--light-color);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--light-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 1rem;
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .section-title {
        font-size: 2rem;
    }

    .activity {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .budget-item.total {
        grid-column: span 1;
    }

    .filter-buttons {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .container {
        padding: 0 1rem;
    }

    .day-content {
        padding: 1.5rem;
    }

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

/* Print Styles */
@media print {
    .navbar,
    .filters,
    .footer,
    .scroll-indicator {
        display: none;
    }

    .day-card {
        page-break-inside: avoid;
    }
}