/**
 * TripDust Yacht Charter - Premium Design System
 * Luxury branding and visual enhancements
 */

/* ========================================
   PREMIUM COLOR PALETTE & VARIABLES
   TripDust Brand Colors - Matching tripdust.com/thailand/
   ======================================== */
:root {
    /* Primary - TripDust Orange */
    --yacht-primary: #f57b18;
    --yacht-primary-light: #ff9142;
    --yacht-primary-dark: #d46710;
    --yacht-primary-rgb: 245, 123, 24;

    /* Accent - TripDust Blue */
    --yacht-accent: #2563eb;
    --yacht-accent-light: #3b82f6;
    --yacht-accent-dark: #1d4ed8;
    --yacht-accent-rgb: 37, 99, 235;

    /* Secondary - Complementary Orange */
    --yacht-secondary: #fb923c;
    --yacht-secondary-light: #fdba74;
    --yacht-secondary-rgb: 251, 146, 60;

    /* Neutrals - Premium Grays */
    --yacht-gray-900: #0F172A;
    --yacht-gray-800: #1E293B;
    --yacht-gray-700: #334155;
    --yacht-gray-600: #475569;
    --yacht-gray-500: #64748B;
    --yacht-gray-400: #94A3B8;
    --yacht-gray-300: #CBD5E1;
    --yacht-gray-200: #E2E8F0;
    --yacht-gray-100: #F1F5F9;
    --yacht-white: #FFFFFF;

    /* Functional Colors */
    --yacht-success: #059669;
    --yacht-warning: #F59E0B;
    --yacht-error: #DC2626;

    /* Gradients - TripDust Theme */
    --yacht-gradient-primary: linear-gradient(135deg, #f57b18 0%, #ff9142 100%);
    --yacht-gradient-blue: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    --yacht-gradient-sunset: linear-gradient(180deg, #f57b18 0%, #fb923c 100%);
    --yacht-gradient-hero: linear-gradient(135deg, rgba(245, 123, 24, 0.95) 0%, rgba(255, 145, 66, 0.9) 100%);

    /* Shadows */
    --yacht-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --yacht-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --yacht-shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --yacht-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --yacht-shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --yacht-shadow-gold: 0 10px 40px -10px rgba(212, 175, 55, 0.3);

    /* Border Radius */
    --yacht-radius-sm: 8px;
    --yacht-radius: 12px;
    --yacht-radius-md: 16px;
    --yacht-radius-lg: 20px;
    --yacht-radius-xl: 24px;
    --yacht-radius-full: 9999px;

    /* Spacing */
    --yacht-spacing-xs: 4px;
    --yacht-spacing-sm: 8px;
    --yacht-spacing: 12px;
    --yacht-spacing-md: 16px;
    --yacht-spacing-lg: 24px;
    --yacht-spacing-xl: 32px;
    --yacht-spacing-2xl: 48px;
    --yacht-spacing-3xl: 64px;
}

/* ========================================
   PREMIUM TYPOGRAPHY - TripDust Style
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

.tdyacht-heading-display,
.tdyacht-body-text,
.tdyacht-accent-text {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.tdyacht-heading-display {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.tdyacht-body-text {
    font-weight: 400;
    letter-spacing: -0.01em;
}

.tdyacht-accent-text {
    font-weight: 600;
}

/* ========================================
   PROGRESS INDICATOR
   ======================================== */
.tdyacht-progress-wrapper {
    position: sticky;
    top: 0;
    background: var(--yacht-white);
    border-bottom: 1px solid var(--yacht-gray-200);
    padding: var(--yacht-spacing-lg) 0;
    margin-bottom: var(--yacht-spacing-xl);
    z-index: 100;
    box-shadow: var(--yacht-shadow-sm);
}

.tdyacht-progress-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--yacht-spacing-lg);
}

.tdyacht-progress-bar {
    position: relative;
}

.tdyacht-progress-track {
    height: 4px;
    background: var(--yacht-gray-200);
    border-radius: var(--yacht-radius-full);
    overflow: hidden;
    margin-bottom: var(--yacht-spacing-lg);
}

.tdyacht-progress-fill {
    height: 100%;
    background: var(--yacht-gradient-gold);
    border-radius: var(--yacht-radius-full);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
}

.tdyacht-progress-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.tdyacht-progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--yacht-spacing-sm);
    flex: 1;
    position: relative;
}

.tdyacht-step-number {
    width: 40px;
    height: 40px;
    border-radius: var(--yacht-radius-full);
    background: var(--yacht-gray-200);
    color: var(--yacht-gray-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    z-index: 2;
}

.tdyacht-progress-step.active .tdyacht-step-number {
    background: var(--yacht-gradient-gold);
    color: var(--yacht-white);
    border-color: var(--yacht-accent-dark);
    box-shadow: var(--yacht-shadow-gold);
    transform: scale(1.1);
}

.tdyacht-progress-step.completed .tdyacht-step-number {
    background: var(--yacht-primary);
    color: var(--yacht-white);
    border-color: var(--yacht-primary-dark);
}

.tdyacht-progress-step.completed .tdyacht-step-number::after {
    content: '✓';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.tdyacht-step-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--yacht-gray-500);
    text-align: center;
    transition: color 0.3s ease;
    font-family: 'Inter', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tdyacht-progress-step.active .tdyacht-step-label {
    color: var(--yacht-accent-dark);
    font-weight: 700;
}

.tdyacht-progress-step.completed .tdyacht-step-label {
    color: var(--yacht-primary);
}

/* ========================================
   PREMIUM HERO SECTION
   ======================================== */
.tdyacht-hero-premium {
    position: relative;
    background: var(--yacht-gradient-hero);
    background-image: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    padding: var(--yacht-spacing-3xl) var(--yacht-spacing-lg);
    border-radius: var(--yacht-radius-lg);
    margin-bottom: var(--yacht-spacing-2xl);
    overflow: hidden;
}

.tdyacht-hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(212, 175, 55, 0.15), transparent 50%);
    pointer-events: none;
}

.tdyacht-hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.tdyacht-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--yacht-spacing-sm);
    padding: var(--yacht-spacing-sm) var(--yacht-spacing-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--yacht-radius-full);
    color: var(--yacht-accent-light);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: var(--yacht-spacing-md);
    font-family: 'Inter', sans-serif;
}

.tdyacht-hero-badge svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.tdyacht-hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    color: var(--yacht-white);
    margin: 0 0 var(--yacht-spacing);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.tdyacht-hero-subtitle {
    display: block;
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 400;
    font-style: italic;
    color: var(--yacht-accent-light);
    margin-top: var(--yacht-spacing);
    opacity: 0.95;
}

.tdyacht-hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--yacht-spacing-lg);
    margin-top: var(--yacht-spacing-xl);
    padding: var(--yacht-spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--yacht-radius);
}

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

.tdyacht-stat-value {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 800;
    color: var(--yacht-accent);
    line-height: 1;
    margin-bottom: var(--yacht-spacing-xs);
    text-shadow: 0 2px 10px rgba(212, 175, 55, 0.3);
}

.tdyacht-stat-label {
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    font-weight: 600;
    color: var(--yacht-gray-300);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   PREMIUM TIER CARDS
   ======================================== */
.tdyacht-tier-card-premium {
    background: var(--yacht-white);
    border: 1px solid var(--yacht-gray-200);
    border-radius: var(--yacht-radius-md);
    overflow: hidden;
    box-shadow: var(--yacht-shadow-lg);
    transition: all 0.3s ease;
    margin-bottom: var(--yacht-spacing-lg);
}

.tdyacht-tier-card-premium:hover {
    box-shadow: var(--yacht-shadow-xl);
    transform: translateY(-2px);
}

.tdyacht-tier-header {
    padding: var(--yacht-spacing-lg);
    border-bottom: 1px solid var(--yacht-gray-200);
}

.tdyacht-tier-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--yacht-gradient-gold);
    color: var(--yacht-white);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: var(--yacht-radius-sm);
    margin-bottom: var(--yacht-spacing-sm);
    font-family: 'Inter', sans-serif;
}

.tdyacht-tier-name {
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--yacht-primary);
    margin: var(--yacht-spacing-sm) 0;
    line-height: 1.2;
}

.tdyacht-tier-tagline {
    color: var(--yacht-gray-600);
    font-size: 15px;
    font-family: 'Cormorant Garamond', serif;
    font-style: italic;
    margin-top: var(--yacht-spacing-xs);
}

.tdyacht-tier-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--yacht-spacing);
    padding: var(--yacht-spacing-lg);
    background: var(--yacht-gray-100);
    border-bottom: 1px solid var(--yacht-gray-200);
}

.tdyacht-spec {
    display: flex;
    align-items: center;
    gap: var(--yacht-spacing-sm);
    font-size: 14px;
    font-weight: 600;
    color: var(--yacht-gray-700);
}

.tdyacht-spec svg {
    width: 20px;
    height: 20px;
    color: var(--yacht-accent);
    flex-shrink: 0;
}

.tdyacht-tier-amenities {
    padding: var(--yacht-spacing-lg);
}

.tdyacht-tier-amenities h4 {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--yacht-gray-900);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--yacht-spacing);
}

.tdyacht-amenity-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--yacht-spacing-sm);
}

.tdyacht-amenity-list li {
    display: flex;
    align-items: center;
    gap: var(--yacht-spacing-sm);
    font-size: 14px;
    color: var(--yacht-gray-700);
}

.tdyacht-amenity-list li svg {
    width: 16px;
    height: 16px;
    color: var(--yacht-success);
    flex-shrink: 0;
}

.tdyacht-tier-pricing {
    padding: var(--yacht-spacing-lg);
    background: linear-gradient(to bottom, var(--yacht-white), var(--yacht-gray-100));
    border-top: 1px solid var(--yacht-gray-200);
}

.tdyacht-price-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--yacht-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--yacht-spacing-xs);
}

.tdyacht-price-amount {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: var(--yacht-spacing-sm);
}

.tdyacht-price-currency {
    font-family: 'Inter', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--yacht-accent-dark);
}

.tdyacht-price-value {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    font-weight: 800;
    color: var(--yacht-primary);
    line-height: 1;
}

.tdyacht-price-period {
    font-size: 16px;
    font-weight: 500;
    color: var(--yacht-gray-600);
}

.tdyacht-price-note {
    font-size: 12px;
    color: var(--yacht-gray-500);
    font-style: italic;
}

/* ========================================
   STICKY PRICE SIDEBAR
   ======================================== */
.tdyacht-layout-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--yacht-spacing-2xl);
    align-items: start;
    max-width: 1400px;
    margin: 0 auto;
}

.tdyacht-main-content {
    min-width: 0;
}

.tdyacht-price-sidebar {
    position: sticky;
    top: 100px;
    background: var(--yacht-white);
    border: 1px solid var(--yacht-gray-200);
    border-radius: var(--yacht-radius-md);
    box-shadow: var(--yacht-shadow-lg);
    overflow: hidden;
    max-height: calc(100vh - 120px);
    display: flex;
    flex-direction: column;
}

.tdyacht-sidebar-header {
    padding: var(--yacht-spacing-lg);
    background: var(--yacht-gradient-primary);
    color: var(--yacht-white);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tdyacht-sidebar-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 var(--yacht-spacing-xs);
    color: var(--yacht-white);
}

.tdyacht-sidebar-badge {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(212, 175, 55, 0.2);
    border: 1px solid var(--yacht-accent-light);
    color: var(--yacht-accent-light);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: var(--yacht-radius-sm);
    font-family: 'Inter', sans-serif;
}

.tdyacht-sidebar-summary {
    padding: var(--yacht-spacing-lg);
    flex: 1;
    overflow-y: auto;
}

.tdyacht-summary-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--yacht-spacing);
    padding: var(--yacht-spacing) 0;
    border-bottom: 1px solid var(--yacht-gray-200);
}

.tdyacht-summary-item:last-child {
    border-bottom: none;
}

.tdyacht-summary-label {
    display: flex;
    align-items: center;
    gap: var(--yacht-spacing-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--yacht-gray-700);
    flex: 1;
}

.tdyacht-summary-label svg {
    width: 18px;
    height: 18px;
    color: var(--yacht-accent);
    flex-shrink: 0;
}

.tdyacht-summary-price {
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: var(--yacht-gray-900);
    white-space: nowrap;
}

.tdyacht-summary-item.surcharge .tdyacht-summary-label {
    color: var(--yacht-warning);
}

.tdyacht-summary-item.surcharge .tdyacht-summary-price {
    color: var(--yacht-warning);
}

.tdyacht-sidebar-total {
    padding: var(--yacht-spacing-lg);
    background: linear-gradient(to bottom, var(--yacht-gray-100), var(--yacht-gray-200));
    border-top: 2px solid var(--yacht-gray-300);
}

.tdyacht-total-label {
    font-size: 14px;
    font-weight: 700;
    color: var(--yacht-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--yacht-spacing-xs);
}

.tdyacht-total-price {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.tdyacht-currency {
    font-family: 'Inter', sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--yacht-accent-dark);
}

.tdyacht-amount {
    font-family: 'Playfair Display', serif;
    font-size: 40px;
    font-weight: 800;
    color: var(--yacht-primary);
    line-height: 1;
}

.tdyacht-deposit-notice {
    display: flex;
    align-items: center;
    gap: var(--yacht-spacing-sm);
    padding: var(--yacht-spacing);
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid var(--yacht-accent-light);
    border-radius: var(--yacht-radius-sm);
    margin-top: var(--yacht-spacing);
    font-size: 13px;
    font-weight: 600;
    color: var(--yacht-accent-dark);
}

.tdyacht-deposit-notice svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.tdyacht-sidebar-trust {
    padding: var(--yacht-spacing-lg);
    background: var(--yacht-gray-100);
    border-top: 1px solid var(--yacht-gray-200);
    display: flex;
    gap: var(--yacht-spacing);
    flex-wrap: wrap;
}

.tdyacht-trust-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--yacht-gray-700);
}

.tdyacht-trust-badge svg {
    width: 14px;
    height: 14px;
    color: var(--yacht-success);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1200px) {
    .tdyacht-layout-with-sidebar {
        grid-template-columns: 1fr 320px;
        gap: var(--yacht-spacing-lg);
    }
}

@media (max-width: 900px) {
    .tdyacht-layout-with-sidebar {
        grid-template-columns: 1fr;
    }

    .tdyacht-price-sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        max-height: 80px;
        border-radius: 0;
        border-left: none;
        border-right: none;
        border-bottom: none;
        z-index: 1000;
        box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.1);
        flex-direction: row;
        align-items: center;
    }

    .tdyacht-sidebar-header {
        padding: var(--yacht-spacing);
        flex: 1;
        border-bottom: none;
        border-right: 1px solid rgba(255, 255, 255, 0.1);
    }

    .tdyacht-sidebar-header h3 {
        font-size: 14px;
        margin-bottom: 2px;
    }

    .tdyacht-sidebar-badge {
        font-size: 10px;
        padding: 2px 8px;
    }

    .tdyacht-sidebar-summary {
        display: none;
    }

    .tdyacht-sidebar-total {
        padding: var(--yacht-spacing);
        background: transparent;
        border: none;
        flex: 1;
    }

    .tdyacht-total-label {
        display: none;
    }

    .tdyacht-total-price {
        justify-content: flex-end;
    }

    .tdyacht-currency {
        font-size: 16px;
    }

    .tdyacht-amount {
        font-size: 28px;
    }

    .tdyacht-sidebar-trust {
        display: none;
    }

    .tdpb-container {
        padding-bottom: 100px;
    }

    .tdyacht-progress-steps {
        overflow-x: auto;
        overflow-y: hidden;
        padding-bottom: var(--yacht-spacing-sm);
        -webkit-overflow-scrolling: touch;
    }

    .tdyacht-progress-step {
        min-width: 60px;
    }

    .tdyacht-step-label {
        font-size: 10px;
        white-space: nowrap;
    }

    .tdyacht-hero-premium {
        padding: var(--yacht-spacing-xl) var(--yacht-spacing);
    }

    .tdyacht-hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--yacht-spacing);
        padding: var(--yacht-spacing);
    }

    .tdyacht-stat-value {
        font-size: 28px;
    }

    .tdyacht-stat-label {
        font-size: 11px;
    }
}

@media (max-width: 640px) {
    .tdyacht-tier-specs {
        grid-template-columns: 1fr 1fr;
    }

    .tdyacht-amenity-list {
        grid-template-columns: 1fr;
    }

    .tdyacht-hero-stats {
        grid-template-columns: 1fr;
    }
}