:root {
    --brand-orange: #ED6938;
    --brand-orange-dark: #d35400;
    --brand-orange-light: #ff8a5c;
    --accent-tint: #fff5f0;
    --sacred-white: #ffffff;
    --stone-grey: #f4f6f8;
    --text-deep: #2d313d;
    --text-muted: #6b7280;
    --glass-bg: rgba(255, 255, 255, 0.88);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 20px 40px rgba(0, 0, 0, 0.06);
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.65;
    color: var(--text-deep);
    background-color: var(--sacred-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
.font-serif {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    line-height: 1.15;
}

h1 {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
}

h2 {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
}

h3 {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
}

h4 {
    font-size: clamp(0.95rem, 1.8vw, 1.15rem);
}

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

/* --- Navigation --- */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition-smooth);
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
}

nav.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    padding: 0.8rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid var(--glass-border);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-nav img {
    height: 56px;
    transition: var(--transition-smooth);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-deep);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-orange);
    transition: var(--transition-smooth);
}

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


/* --- Hero Section --- */
.hero {
    height: 55vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #2e2c2c;
    position: relative;
    /* 溢出隐藏非常重要 */
    overflow: hidden;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    filter: saturate(1.9) contrast(2.9) brightness(1.5);

    z-index: -1;
    transform: scale(1.02);
    transform-origin: center;
}

.hero-content {
    max-width: 1000px;
    padding: 2rem;
    animation: fadeIn 1.2s ease-out;
}

.hero h1 {
    font-size: clamp(1.8rem, 5vw, 3rem);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
    line-height: 1.1;
    text-shadow:
        0 0 20px rgba(255, 255, 255, 1),
        0 0 40px rgba(255, 255, 255, 0.8),
        0 0 60px rgba(255, 255, 255, 0.4);
    color: #1a1e27;
}

.hero-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: block;
    font-weight: 500;
}


.hero-duration {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    background: var(--brand-orange);
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(237, 105, 56, 0.2);
}

.hero_dark {
    color: #ffffff;
}

.hero_dark h1 {
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    text-shadow:
        0 0 20px rgb(8, 8, 8),
        0 0 40px rgba(7, 7, 7, 0.8),
        0 0 60px rgba(53, 52, 52, 0.4);
}


.hero_dark .hero-subtitle {
    color: #ffffff;
    text-shadow:
        0 2px 4px rgba(0, 0, 0, 0.9),
        0 0 10px rgba(0, 0, 0, 0.7),
        0 0 20px rgba(0, 0, 0, 0.5);
}

/* --- Quick Info Bar --- */
.quick-info-wrapper {
    padding: 0 2rem;
}

.quick-info {
    background: white;
    padding: 1.25rem 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--brand-orange);
    max-width: 1100px;
    margin: -3rem auto 0;
    position: relative;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.info-item {
    text-align: center;
    border-right: 1px solid #eee;
    padding: 0 1rem;
}

.info-item:last-child {
    border-right: none;
}

.info-item i {
    font-size: 1.2rem;
    color: var(--brand-orange);
    margin-bottom: 0.6rem;
    display: block;
}

.info-item h6 {
    text-transform: uppercase;
    font-size: 0.65rem;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
    font-weight: 600;
}

.info-item div {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-deep);
}

/* --- Main Content Grid --- */
.main-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 3rem;
    padding: 4rem 0;
}

/* --- Itinerary Summary --- */
.itin-summary {
    background: var(--stone-grey);
    padding: 2rem 2.5rem;
    border-radius: 24px;
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
}

.itin-summary:after {
    content: 'ITINERARY';
    position: absolute;
    right: -20px;
    bottom: -20px;
    font-size: 8rem;
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    color: rgba(0, 0, 0, 0.03);
    pointer-events: none;
}

.itin-summary h3 {
    margin-bottom: 1.25rem;
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    position: relative;
}

.itin-summary h3:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 60px;
    height: 4px;
    background: var(--brand-orange);
    border-radius: 2px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    position: relative;
    z-index: 2;
}

.summary-item {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 0.8rem 1rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
    transition: var(--transition-smooth);
}

.summary-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
}

.summary-day {
    background: var(--brand-orange);
    color: white;
    padding: 0.4rem 0.5rem;
    border-radius: 8px;
    font-weight: 800;
    font-size: 0.75rem;
    width: 85px;
    flex-shrink: 0;
    text-align: center;
}

.summary-text {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-deep);
}

/* --- Detailed Itinerary --- */
.itinerary-day {
    position: relative;
    padding-bottom: 1rem;
    padding-left: 3.5rem;
    border-left: 2px dashed #eee;
}

.itinerary-day:last-child {
    border-left-color: transparent;
    padding-bottom: 0;
}

.itinerary-day:before {
    content: '';
    position: absolute;
    left: -11px;
    top: 10px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--brand-orange);
    border: 4px solid white;
    box-shadow: 0 0 0 4px var(--stone-grey);
    z-index: 2;
}

.day-header {
    margin-bottom: 1rem;
    display: flex;
    align-items: baseline;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.day-label {
    display: inline-block;
    background: var(--stone-grey);
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--brand-orange);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.day-title {
    font-size: clamp(0.95rem, 1.6vw, 1.1rem);
    font-weight: 800;
    margin-bottom: 0;
    color: var(--text-deep);
    letter-spacing: -0.01em;
}

.day-desc {
    font-size: clamp(1rem, 2vw, 1.05rem);
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.short-itin {
    margin-bottom: 15px;
}

/* --- Sidebar & Pricing --- */
.sidebar-sticky {
    position: sticky;
    top: 120px;
}

.price-card {
    background: linear-gradient(145deg, var(--sacred-white), var(--accent-tint));
    color: var(--text-deep);
    padding: 2.5rem 2rem;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 25px 60px rgba(237, 105, 56, 0.12);
    border: 1px solid var(--brand-orange-light);
    margin-bottom: 2rem;
    overflow: hidden;
    position: relative;
    z-index: 1;
    transition: var(--transition-smooth);
}

.price-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 35px 80px rgba(237, 105, 56, 0.18);
    border-color: var(--brand-orange);
}

.price-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://www.transparenttextures.com/patterns/cubes.png');
    opacity: 0.05;
}

.price-label {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 2px;
    font-weight: 700;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.5rem;
}

.price-amount {
    font-size: 3rem;
    font-family: 'Playfair Display', serif;
    font-weight: 800;
    line-height: 1;
    margin: 0.75rem 0;
    color: var(--brand-orange);
    text-shadow: 0 2px 10px rgba(237, 105, 56, 0.1);
}

.price-card:after {
    content: '';
    position: absolute;
    top: 10%;
    right: 10%;
    width: 100px;
    height: 100px;
    background: var(--brand-orange);
    filter: blur(80px);
    opacity: 0.1;
    z-index: -1;
    pointer-events: none;
}

.currency-symbol {
    font-size: 1rem;
    vertical-align: baseline;
    margin-right: 2px;
    font-weight: 600;
}

.booking-form {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid #f0f0f0;
}

.btn-send {
    width: 100%;
    padding: 1.4rem;
    background: var(--brand-orange);
    color: white;
    border: none;
    border-radius: 16px;
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-top: 1rem;
}

.btn-send:hover {
    background: var(--brand-orange-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(237, 105, 56, 0.4);
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 0.9rem 1.8rem;
    background: white;
    color: var(--brand-orange);
    border: 2px solid var(--brand-orange);
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    transition: var(--transition-smooth);
    margin-top: 1.5rem;
    box-shadow: 0 4px 15px rgba(237, 105, 56, 0.1);
}

.btn-download:hover {
    background: var(--brand-orange);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(237, 105, 56, 0.2);
}

.btn-download i {
    font-size: 1.1rem;
}

/* --- Inclusion Lists --- */
.inclusion-grid {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.inclusion-card {
    background: white;
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid #eee;
}

.inclusion-card h4 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    color: var(--brand-orange);
    font-weight: 800;
}

.custom-bullet-y,
.custom-bullet-x {
    list-style: none;
}

.custom-bullet-y li,
.custom-bullet-x li {
    padding-left: 2.5rem;
    position: relative;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.custom-bullet-y li:before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: -2px;
    color: #2ecc71;
    font-size: 1rem;
}

.custom-bullet-x li:before {
    content: '\f00d';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: -2px;
    color: #e74c3c;
    font-size: 1rem;
}

/* --- Footer Redesign --- */
.footer-cta {
    background: #ecd2c9;
    padding: 6rem 0;
    text-align: center;
    color: var(--text-deep);
    clip-path: polygon(0 15%, 100% 0, 100% 100%, 0% 100%);
}

.footer-cta h2 {
    color: var(--brand-orange);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.copyright-bar {
    background: var(--sacred-white);
    padding: 2.5rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-align: center;
    border-top: 1px solid var(--stone-grey);
}

/* Modal Overrides */
.modal {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    border-radius: 32px;
    border: none;
    padding: 2rem;
}

/* --- Form Styles --- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-control {
    width: 100%;
    padding: 1rem 1.2rem;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-deep);
    transition: var(--transition-smooth);
    background: var(--stone-grey);
}

.form-control:focus {
    outline: none;
    border-color: var(--brand-orange);
    background: white;
    box-shadow: 0 0 0 4px rgba(237, 105, 56, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* --- Scrollable Info Box --- */
.scroll-info-box {
    max-height: 250px;
    overflow-y: auto;
    padding-right: 1.5rem;
    margin-top: 1rem;
    scrollbar-width: thin;
    scrollbar-color: #ddd transparent;
}

.scroll-info-box::-webkit-scrollbar {
    width: 6px;
}

.scroll-info-box::-webkit-scrollbar-track {
    background: transparent;
}

.scroll-info-box::-webkit-scrollbar-thumb {
    background: #e0e0e0;
    border-radius: 10px;
    transition: var(--transition-smooth);
}

.scroll-info-box::-webkit-scrollbar-thumb:hover {
    background: var(--brand-orange-light);
}

#note-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 992px) {
    .main-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 3rem 0;
    }

    .container {
        padding: 0 1.25rem;
    }

    .hero {
        height: 380px !important;
        padding-top: 140px;
        padding-bottom: 20px;
        /*background-attachment: scroll !important;*/
        background-size: 115% auto !important;
        background-position: 0% 100% !important;
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%) !important;
        margin-bottom: -35px;
    }

    .hero h1 {
        font-size: 1.6rem !important;
        margin-bottom: 0.5rem;
        text-shadow:
            0 0 15px rgba(255, 255, 255, 1),
            0 0 30px rgba(255, 255, 255, 0.8),
            0 0 45px rgba(255, 255, 255, 0.4);
    }

    .hero-subtitle {
        font-size: 0.75rem !important;
        letter-spacing: 2px !important;
        margin-bottom: 0.5rem !important;
    }


    .hero_dark {
        color: #ffffff;
    }

    .hero_dark h1 {
        color: #ffffff;
        text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
        text-shadow:
            0 0 15px rgb(8, 8, 8),
            0 0 30px rgba(7, 7, 7, 0.8),
            0 0 45px rgba(53, 52, 52, 0.4);
    }


    .hero_dark .hero-subtitle {
        color: #ffffff;
        text-shadow:
            0 2px 4px rgba(0, 0, 0, 0.9),
            0 0 10px rgba(0, 0, 0, 0.7),
            0 0 20px rgba(0, 0, 0, 0.5);
    }

    .hero-duration {
        font-size: 0.70rem !important;
        padding: 0.3rem 1rem !important;
    }

    .nav-content {
        flex-direction: column;
        gap: 0.75rem;
        padding: 1rem 0;
    }

    .nav-links {
        display: flex;
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem 1rem;
        padding: 0 0.5rem;
    }

    .nav-links a {
        font-size: 0.65rem;
        letter-spacing: 0.5px;
        white-space: nowrap;
    }

    .logo-nav img {
        height: 38px;
    }

    .quick-info-wrapper {
        padding: 0 1rem;
    }

    .quick-info {
        grid-template-columns: repeat(3, 1fr);
        padding: 0.75rem 0.5rem;
        background: white;
        border: 1px solid var(--brand-orange);
        gap: 0.5rem;
        margin-top: -1.5rem;
    }

    .info-item {
        border-right: 1px solid #eee;
        border-bottom: none;
        padding: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.25rem;
    }

    .info-item i {
        margin-bottom: 0;
        font-size: 1rem;
        width: 20px;
        color: var(--brand-orange);
    }

    .info-item h6 {
        font-size: 0.6rem;
    }

    .info-item div {
        font-size: 0.9rem;
    }

    .info-item .text-wrap {
        flex: 1;
    }

    #tour_dates {
        font-size: 1rem !important;
        margin-bottom: 0.4rem !important;
        margin-top: 1.5rem !important;
    }

    #highlights {
        font-size: 0.9rem !important;
        line-height: 1.4 !important;
    }

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

    .price-card {
        margin-top: 1rem;
        margin-bottom: 2rem;
        padding: 1.5rem 1rem !important;
    }

    .price-amount {
        font-size: 2.2rem !important;
    }

    .inclusion-grid {
        margin-top: 1rem !important;
    }

    .itin-summary {
        padding: 1.5rem;
        border-radius: 16px;
    }

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

    .itinerary-day {
        padding-left: 2.5rem;
        padding-bottom: 2.5rem;
    }

    .inclusion-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .btn-download {
        font-size: 0.75rem !important;
        padding: 0.7rem 1.2rem !important;
        white-space: nowrap;
    }
}

/* --- Sidebar Gallery --- */
.sidebar-gallery {
    margin-top: 2rem;
    background: white;
    padding: 1.5rem;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid #f0f0f0;
}

.sidebar-gallery h5 {
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    margin-bottom: 1.25rem;
    color: var(--text-deep);
    text-align: center;
}

.gallery-grid-v {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gallery-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16/10;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.gallery-item:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-medium);
}

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

.gallery-item:hover img {
    filter: brightness(0.8);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0;
    transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-caption {
    opacity: 1;
}

/* Lightbox - Simple implementation via modal or enlargement */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(10px);
}

.lightbox-btn-wrap {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 2020;
    backdrop-filter: blur(5px);
}

.lightbox-nav:hover {
    background: var(--brand-orange);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav.prev {
    left: 30px;
}

.lightbox-nav.next {
    right: 30px;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    /* max-height: 80%; Removed to allow image to dictate height */
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.lightbox-img {
    max-width: 100%;
    width: auto;
    max-height: 80vh; /* Use viewport height directly */
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
    transition: opacity 0.3s ease;
}

.lightbox-caption-fixed {
    color: white;
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    text-align: center;
    font-weight: 600;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}


.lightbox-close {
    position: absolute;
    top: 30px;
    right: 30px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    backdrop-filter: blur(5px);
    z-index: 2010;
}

.lightbox-close:hover {
    background: var(--brand-orange);
    border-color: var(--brand-orange);
    transform: rotate(90deg);
}


/* --- Mobile Adjustments --- */
@media (max-width: 768px) {
    .itin-summary {
        display: none;
    }

    .lightbox-close {
        top: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .lightbox-nav {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }

    .lightbox-nav.prev {
        left: 10px;
    }

    .lightbox-nav.next {
        right: 10px;
    }

    .lightbox-caption-fixed {
        font-size: 1rem;
    }
}