/* ===================================
   The Tree House II - Modern Design
   Apple/Airbnb Inspired Aesthetic
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #1a1a1a;
    --color-secondary: #555;
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-background: #ffffff;
    --color-surface: #f7f7f7;
    --color-border: #e5e5e5;
    --color-text: #1a1a1a;
    --color-text-secondary: #666;
    --color-text-muted: #999;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Borders */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-background);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-xl); }

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--color-primary);
    color: white;
    font-weight: 500;
    font-size: var(--font-size-base);
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--font-size-lg);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: rgba(255, 255, 255, 0.15);
    color: white;
    font-weight: 500;
    font-size: var(--font-size-base);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
}

.section-header h2 {
    margin-bottom: var(--space-sm);
}

.section-header p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-base);
}

.nav.visible {
    transform: translateY(0);
    opacity: 1;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

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

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-links a {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-text);
}

.nav-cta {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-primary);
    color: white;
    font-weight: 500;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background: var(--color-secondary);
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--color-border);
    }
    
    .nav-links.open {
        display: flex;
    }
    
    .nav-links a {
        padding: var(--space-sm) 0;
        font-size: var(--font-size-base);
    }
    
    .nav-cta {
        display: none;
    }
    
    .nav-mobile-toggle {
        display: flex;
    }
    
    .nav-mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0.6) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    max-width: 900px;
    padding: 0 var(--space-lg);
}

.hero-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    opacity: 0.9;
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.3);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: white;
    opacity: 0.7;
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-stat-divider {
        display: none;
    }
    
    .hero-stats {
        gap: var(--space-lg);
    }
}

/* Highlights */
.highlights {
    padding: var(--space-4xl) 0;
    background: var(--color-surface);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.highlight-card {
    text-align: center;
    padding: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.highlight-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.highlight-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.highlight-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-xs);
}

.highlight-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

@media (max-width: 768px) {
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Gallery */
.gallery {
    padding: var(--space-5xl) 0;
}

.gallery-showcase {
    display: grid;
    gap: var(--space-lg);
}

.gallery-main {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--color-surface);
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-xl);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.caption-title {
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.caption-count {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.gallery-nav:hover {
    background: white;
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.gallery-prev { left: var(--space-lg); }
.gallery-next { right: var(--space-lg); }

.gallery-thumbs {
    display: flex;
    gap: var(--space-sm);
    overflow-x: auto;
    padding: var(--space-xs);
    scrollbar-width: none;
}

.gallery-thumbs::-webkit-scrollbar {
    display: none;
}

.gallery-thumb {
    flex: 0 0 120px;
    aspect-ratio: 4/3;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    opacity: 0.6;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.gallery-thumb:hover,
.gallery-thumb.active {
    opacity: 1;
}

.gallery-thumb.active {
    border-color: var(--color-primary);
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Virtual Tour */
.virtual-tour {
    padding: var(--space-5xl) 0;
    background: var(--color-surface);
}

.tour-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.tour-container {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.tour-container iframe {
    width: 100%;
    height: 100%;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.tour-container.active iframe {
    pointer-events: auto;
}

.tour-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.tour-container.active .tour-overlay {
    opacity: 0;
    pointer-events: none;
}

.tour-prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: white;
    text-align: center;
}

.tour-icon {
    font-size: 3rem;
}

.tour-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* About */
.about {
    padding: var(--space-5xl) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.about-content h2 {
    margin-bottom: var(--space-lg);
}

.about-lead {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.about-content p {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

.about-features {
    margin-top: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: var(--color-text);
}

.feature svg {
    color: #22c55e;
    flex-shrink: 0;
}

.about-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .about-image {
        order: -1;
    }
}

/* Amenities */
.amenities {
    padding: var(--space-5xl) 0;
    background: var(--color-surface);
}

.amenities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.amenity-group {
    background: white;
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.amenity-group h3 {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.amenity-group ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.amenity-group li {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    padding-left: var(--space-lg);
    position: relative;
}

.amenity-group li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: 600;
}

@media (max-width: 768px) {
    .amenities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .amenities-grid {
        grid-template-columns: 1fr;
    }
}

/* Location */
.location {
    padding: var(--space-5xl) 0;
}

.location-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.location-content h2 {
    margin-bottom: var(--space-md);
}

.location-lead {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.location-content > p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.location-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.location-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.location-link {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.location-link:hover {
    background: white;
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.location-arrow {
    margin-left: auto;
    font-size: 1.25rem;
    color: var(--color-text-tertiary);
    opacity: 0;
    transition: all var(--transition-base);
}

.location-link:hover .location-arrow {
    opacity: 1;
    color: var(--color-primary);
}

.location-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.location-detail strong {
    display: block;
    margin-bottom: 2px;
}

.location-detail span {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.location-map {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.location-map iframe {
    height: 450px;
    border-radius: var(--radius-xl);
}

.map-caption {
    text-align: center;
    padding: var(--space-md) 0 0 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    background: white;
}

@media (max-width: 768px) {
    .location-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .location-map iframe {
        height: 300px;
    }
}

/* Experiences */
.experiences {
    padding: var(--space-5xl) 0;
    background: var(--color-surface);
}

.experiences-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.experience-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.experience-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.experience-image {
    aspect-ratio: 4/3;
    overflow: hidden;
}

.experience-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.experience-card:hover .experience-image img {
    transform: scale(1.05);
}

.experience-content {
    padding: var(--space-lg);
}

.experience-content h3 {
    margin-bottom: var(--space-sm);
}

.experience-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.experience-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    .experiences-grid {
        grid-template-columns: 1fr;
    }
}

/* Booking CTA */
.booking-cta {
    padding: var(--space-5xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, #333 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: var(--space-md);
}

.cta-content > p {
    opacity: 0.9;
    margin-bottom: var(--space-2xl);
}

.cta-content .btn-primary {
    background: white;
    color: var(--color-primary);
}

.cta-content .btn-primary:hover {
    background: var(--color-surface);
}

.cta-note {
    margin-top: var(--space-xl);
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

/* Footer */
.footer {
    padding: var(--space-4xl) 0 var(--space-xl);
    background: var(--color-primary);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-4xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-brand .logo-icon {
    font-size: 2rem;
}

.footer-brand .logo-text {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.footer-brand p {
    opacity: 0.7;
    font-size: var(--font-size-sm);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    font-size: var(--font-size-sm);
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
}

.footer-booking p {
    font-size: var(--font-size-sm);
    opacity: 0.7;
    margin-bottom: var(--space-sm);
}

.footer-booking a {
    font-weight: 600;
    transition: opacity var(--transition-fast);
}

.footer-booking a:hover {
    opacity: 0.8;
}

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

.footer-bottom p {
    font-size: var(--font-size-sm);
    opacity: 0.5;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .footer-links {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--space-lg);
    }
}