/* 
 * Chaika Luxury Hotel - Official Website Stylesheet
 * Style: Modern Minimalist & Editorial
 */

:root {
    /* Color Palette */
    --primary-color: #1A1A1A;      /* Deep Charcoal */
    --secondary-color: #F7F7F7;    /* Off-white / Light Gray */
    --accent-color: #B5A48B;       /* Muted Gold/Bronze */
    --bg-light: #FFFFFF;
    --bg-dark: #1A1A1A;
    --text-main: #1A1A1A;
    --text-muted: #666666;
    --text-light: #FFFFFF;
    --border-color: rgba(0, 0, 0, 0.1);
    --border-light: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-serif: "Playfair Display", "Times New Roman", serif;
    --font-sans: "Inter", "Montserrat", Arial, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Transitions */
    --transition-smooth: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: all 0.3s ease;
}

/* 1. Global Styles & Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .serif {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.1;
}

h1 { font-size: clamp(3rem, 8vw, 6rem); }
h2 { font-size: clamp(2.5rem, 5vw, 4rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); }

em, .italic {
    font-style: italic;
    font-family: var(--font-serif);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul { list-style: none; }

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

/* 2. Buttons & Links */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.2rem 2.5rem;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.link-underline {
    position: relative;
    padding-bottom: 2px;
}

.link-underline::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.link-underline:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* 3. Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
}

.header.scrolled {
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.nav-left, .nav-right {
    flex: 1;
    display: flex;
    align-items: center;
}

.nav-right { justify-content: flex-end; }

.logo {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-weight: 700;
    text-align: center;
}

.nav-link {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-left: var(--space-md);
    font-weight: 500;
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    margin-right: var(--space-md);
}

.hamburger span {
    width: 24px;
    height: 1px;
    background-color: var(--primary-color);
}

/* 4. Hero Section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 0 var(--space-lg);
    gap: var(--space-lg);
}

.hero-content {
    padding-top: var(--space-xl);
}

.hero-title {
    margin-bottom: var(--space-md);
}

.hero-image-container {
    position: relative;
    height: 80vh;
    width: 100%;
    overflow: hidden;
    clip-path: ellipse(45% 50% at 50% 50%); /* Organic Mask */
}

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

/* 5. Booking Bar */
.booking-bar {
    display: flex;
    background: var(--bg-light);
    padding: var(--space-sm);
    margin-top: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.booking-field {
    flex: 1;
    padding: 0 var(--space-sm);
    border-right: 1px solid var(--border-color);
}

.booking-field:last-child { border-right: none; }

.booking-label {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.booking-input {
    border: none;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    width: 100%;
}

/* 6. Scrolling Marquee */
.marquee {
    overflow: hidden;
    white-space: nowrap;
    padding: var(--space-md) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.marquee-content {
    display: inline-block;
    animation: scroll 20s linear infinite;
}

.marquee-text {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    text-transform: uppercase;
    margin-right: var(--space-lg);
}

@keyframes scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* 7. Room Cards & Sections */
.section {
    padding: var(--space-xl) var(--space-lg);
}

.section-dark {
    background-color: var(--bg-dark);
    color: var(--text-light);
}

.grid-rooms {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: var(--space-md);
}

.room-card {
    position: relative;
    height: 600px;
    overflow: hidden;
    cursor: pointer;
}

.room-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

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

.room-info {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: var(--space-md);
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    width: 100%;
    color: var(--text-light);
}

/* 8. Amenities / Service Grid */
.amenities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

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

.amenity-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    color: var(--accent-color);
}

/* 9. Footer */
.footer {
    padding: var(--space-xl) var(--space-lg) var(--space-md);
    background-color: var(--secondary-color);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-lg);
}

.footer-brand .logo { text-align: left; margin-bottom: var(--space-md); }

.footer-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.footer-links li { margin-bottom: var(--space-xs); }

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.newsletter-input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--primary-color);
    padding: var(--space-xs) 0;
    margin-bottom: var(--space-sm);
    outline: none;
}

/* 10. Utility Classes */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.max-width-700 { max-width: 700px; margin-inline: auto; }

/* 11. Responsive Design */

/* Tablet (1024px) */
@media (max-width: 1024px) {
    .header { padding: var(--space-sm) var(--space-md); }
    .hero { grid-template-columns: 1fr; gap: var(--space-md); text-align: center; }
    .hero-image-container { height: 50vh; order: -1; }
    .booking-bar { flex-wrap: wrap; }
    .booking-field { flex: 50%; border-bottom: 1px solid var(--border-color); }
    .amenities-grid { grid-template-columns: repeat(2, 1fr); }
    .footer { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile (768px) */
@media (max-width: 768px) {
    :root {
        --space-lg: 2.5rem;
        --space-xl: 4rem;
    }
    
    .nav-link.desktop-only { display: none; }
    
    .grid-rooms {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding-bottom: var(--space-sm);
    }
    
    .room-card {
        min-width: 85vw;
        height: 500px;
        scroll-snap-align: start;
    }

    .footer { grid-template-columns: 1fr; text-align: center; gap: var(--space-md); }
    .footer-brand .logo { text-align: center; }
    
    .hero-title { font-size: 3rem; }
    
    .booking-field { flex: 100%; border-right: none; }
}

/* Hover & Micro-interactions */
.room-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.2);
    opacity: 0;
    transition: var(--transition-fast);
}

.room-card:hover::after {
    opacity: 1;
}

.amenity-item:hover .amenity-icon {
    transform: translateY(-5px);
    transition: var(--transition-fast);
}