/* Modern Atlantis Cruise Explorer - Main Styles */

/* CSS Custom Properties - Purple Material Design Theme */
:root {
    /* Primary Purple Palette */
    --primary-50: #f3e5f5;
    --primary-100: #e1bee7;
    --primary-200: #ce93d8;
    --primary-300: #ba68c8;
    --primary-400: #ab47bc;
    --primary-500: #9c27b0;
    --primary-600: #8e24aa;
    --primary-700: #7b1fa2;
    --primary-800: #6a1b9a;
    --primary-900: #4a148c;
    
    /* Accent Colors */
    --accent-purple: #e1bee7;
    --accent-pink: #f8bbd9;
    --accent-blue: #b3e5fc;
    --accent-green: #c8e6c9;
    
    /* Neutrals */
    --surface-white: #ffffff;
    --surface-light: #fafafa;
    --surface-medium: #f5f5f5;
    --background: #fafafa;
    
    /* Text Colors */
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-disabled: #bdbdbd;
    --text-on-primary: #ffffff;
    
    /* Shadows */
    --shadow-1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --shadow-3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
    --shadow-4: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
    --shadow-5: 0 19px 38px rgba(0,0,0,0.30), 0 15px 12px rgba(0,0,0,0.22);
    
    /* Border Radius */
    --radius-small: 4px;
    --radius-medium: 8px;
    --radius-large: 12px;
    --radius-xlarge: 16px;
    --radius-circle: 50%;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Hero Header */
.hero-header {
    position: relative;
    height: 60vh;
    min-height: 400px;
    /* Background will be set dynamically by JavaScript */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle at 60% 70%, rgba(255,255,255,0.08) 1px, transparent 1px),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.06) 3px, transparent 3px),
        linear-gradient(45deg, rgba(255,255,255,0.03) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(255,255,255,0.03) 25%, transparent 25%);
    background-size: 80px 80px, 120px 120px, 100px 100px, 40px 40px, 40px 40px;
    background-position: 0 0, 30px 30px, 60px 10px, 0 0, 0 20px;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    25% { transform: translateY(-10px) translateX(5px); }
    50% { transform: translateY(-5px) translateX(-5px); }
    75% { transform: translateY(-15px) translateX(3px); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.hero-overlay::after {
    content: '🚢';
    position: absolute;
    top: 20%;
    right: 10%;
    font-size: 8rem;
    opacity: 0.1;
    animation: cruise-float 15s ease-in-out infinite;
    transform-origin: center;
}

/* Resort emoji override */
.hero-overlay[data-type="resort"]::after {
    content: '🏖️';
}

@keyframes cruise-float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
        opacity: 0.1; 
    }
    25% { 
        transform: translateY(-20px) rotate(2deg); 
        opacity: 0.15; 
    }
    50% { 
        transform: translateY(-10px) rotate(-1deg); 
        opacity: 0.08; 
    }
    75% { 
        transform: translateY(-30px) rotate(1deg); 
        opacity: 0.12; 
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--text-primary);
    width: 100%;
}

/* Back button */
.back-button {
    position: fixed;
    left: var(--spacing-lg);
    top: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.95);
    border: none;
    color: var(--primary-600);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-2);
    text-decoration: none;
    z-index: 1000;
}

.back-button:hover {
    background: rgba(255, 255, 255, 1);
    box-shadow: var(--shadow-3);
    transform: translateX(-4px);
}

.back-button .material-icons {
    font-size: 24px;
}

.cruise-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.nav-button {
    background: rgba(0, 0, 0, 0.15);
    border: 2px solid rgba(0, 0, 0, 0.2);
    color: var(--text-primary);
    width: 56px;
    height: 56px;
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.nav-button:hover {
    background: rgba(0, 0, 0, 0.25);
    border-color: rgba(0, 0, 0, 0.3);
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.nav-button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
}

.cruise-info {
    flex: 1;
    margin: 0 var(--spacing-xl);
}

.cruise-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    text-shadow: 0 2px 8px rgba(255, 255, 255, 0.8);
}

.cruise-subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    opacity: 0.85;
    color: var(--text-secondary);
    text-shadow: 0 1px 4px rgba(255, 255, 255, 0.6);
    line-height: 1.4;
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
}

/* Cruise Indicators */
.cruise-indicators {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 3;
}

.cruise-indicator {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-circle);
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.cruise-indicator.active {
    background: var(--text-on-primary);
    transform: scale(1.2);
}

.cruise-indicator:hover {
    background: rgba(255, 255, 255, 0.7);
}

/* Main Content */
.main-content {
    margin-top: calc(-1 * var(--spacing-3xl));
    position: relative;
    z-index: 10;
}

/* Controls Section */
.controls-section {
    background: var(--surface-white);
    border-radius: var(--radius-xlarge) var(--radius-xlarge) 0 0;
    box-shadow: var(--shadow-3);
    padding: var(--spacing-2xl) 0 var(--spacing-xl) 0;
    margin-bottom: var(--spacing-xl);
}

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

@media (max-width: 768px) {
    .controls-header {
        flex-wrap: wrap;
        justify-content: flex-start;
    }
}

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

@media (max-width: 768px) {
    .controls-title {
        width: 100%;
        justify-content: flex-start;
    }
}

.controls-title h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.price-note {
    font-size: 0.7rem;
    color: var(--text-secondary);
    opacity: 0.65;
    font-weight: 400;
    line-height: 1.3;
    max-width: 320px;
    text-align: right;
}

@media (max-width: 768px) {
    .price-note {
        max-width: 100%;
        text-align: left;
        width: 100%;
    }
}

.controls-icon {
    color: var(--primary-500);
    font-size: 2rem;
}

.filter-clear-btn {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.filter-clear-btn:hover .controls-icon {
    opacity: 0.7;
    transform: scale(1.1);
}

.filter-clear-btn.has-filters .controls-icon {
    color: var(--primary-600);
}

.filter-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--surface-medium);
    border-radius: var(--radius-medium);
    font-size: 1rem;
    line-height: 1.5;
    transition: all var(--transition-normal);
    background: var(--surface-white);
    box-sizing: border-box;
    font-family: inherit;
    height: auto;
}

/* Mobile filter input adjustments */
@media (max-width: 640px) {
    .filter-input {
        padding: var(--spacing-sm);
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .filter-input {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
    }
}

.filter-input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.cabin-count {
    background: var(--primary-50);
    color: var(--primary-700);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-large);
    font-weight: 500;
    font-size: 0.95rem;
}

/* Filters Grid */
.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Mobile-first responsive filters - single column for better mobile UX */
@media (max-width: 768px) {
    .filters-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .filters-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.filter-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Mobile filter label adjustments */
@media (max-width: 640px) {
    .filter-label {
        font-size: 0.85rem;
        gap: var(--spacing-xs);
    }
}

.filter-select {
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
    border: 2px solid var(--surface-medium);
    border-radius: var(--radius-medium);
    padding: var(--spacing-md);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-md) center;
    background-repeat: no-repeat;
    background-size: 16px 12px;
    padding-right: var(--spacing-2xl);
    box-sizing: border-box;
    font-family: inherit;
    background-color: var(--surface-white);
    height: auto;
}

/* Mobile filter select adjustments */
@media (max-width: 640px) {
    .filter-select {
        padding: var(--spacing-sm);
        padding-right: var(--spacing-2xl);
        font-size: 0.95rem;
        background-size: 14px 10px;
        background-position: right var(--spacing-sm) center;
    }
}

@media (max-width: 480px) {
    .filter-select {
        padding: var(--spacing-sm);
        padding-right: var(--spacing-2xl);
        font-size: 0.9rem;
        background-size: 12px 8px;
    }
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(156, 39, 176, 0.1);
}

.clear-filters-btn {
    background: var(--surface-medium);
    border: none;
    border-radius: var(--radius-medium);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: auto; /* Align with dropdown selects at bottom of filter groups */
}

.clear-filters-btn:hover {
    background: var(--primary-100);
    color: var(--primary-700);
}

/* Mobile clear filters button adjustments */
@media (max-width: 640px) {
    .clear-filters-btn {
        padding: var(--spacing-sm);
        font-size: 0.85rem;
        margin-top: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .clear-filters-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8rem;
        width: 100%;
        justify-content: center;
    }
}

/* Loading States */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl);
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--surface-medium);
    border-top: 3px solid var(--primary-500);
    border-radius: var(--radius-circle);
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 4rem;
    color: var(--text-disabled);
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.empty-state p {
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
}