/* ==========================================================================
   PREMIUM LUXURY DESIGN SYSTEM - EXTENDED SYSTEM INTERFACE
   ========================================================================== */

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

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.75;
    color: #1e2530;
    background-color: #f4f6f9;
    overflow-x: hidden;
}

body::-webkit-scrollbar {
    width: 8px;
}
body::-webkit-scrollbar-track {
    background: #f4f6f9;
}
body::-webkit-scrollbar-thumb {
    background: #c5a059;
    border-radius: 4px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.gold-text {
    color: #c5a059 !important;
}

/* ANIMATION SCROLL WRAPPER ENGINE */
.animate-section {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.9s cubic-bezier(0.215, 0.610, 0.355, 1), 
                transform 0.9s cubic-bezier(0.215, 0.610, 0.355, 1);
    will-change: transform, opacity;
}

.animate-section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   1. FIXED PREMIUM GLASS NAVIGATION NAVBAR
   ========================================================================== */
.main-header {
    background-color: rgba(10, 21, 41, 0.96);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #ffffff;
    position: sticky;
    top: 0;
    z-index: 2000;
    border-bottom: 1px solid rgba(197, 160, 89, 0.2);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    position: relative;
}

.logo a {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 3px;
    color: #ffffff;
}

/* Desktop Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 8px;
}

.nav-menu a {
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 10px 16px;
    color: #d1d5db;
    position: relative;
}

.nav-menu a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 16px;
    width: 0;
    height: 1.5px;
    background-color: #c5a059;
    transition: width 0.3s ease;
}

.nav-menu a:hover:not(.nav-cta)::after, 
.nav-menu a.active:not(.nav-cta)::after {
    width: calc(100% - 32px);
}

.nav-menu a:hover:not(.nav-cta),
.nav-menu a.active:not(.nav-cta) {
    color: #c5a059;
}

.nav-cta {
    background: transparent;
    border: 1px solid #c5a059;
    color: #c5a059 !important;
    padding: 10px 20px !important;
    font-weight: 600 !important;
}

.nav-cta:hover {
    background: #c5a059;
    color: #0a1529 !important;
    box-shadow: 0 4px 15px rgba(197, 160, 89, 0.3);
}

/* Premium Hamburger Trigger Asset (Hidden on Desktop) */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 2100;
}

.menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: #ffffff;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.menu-toggle .bar:nth-child(2) {
    width: 80%;
    align-self: flex-end;
}

/* Hamburger state transformations during toggle activation */
.menu-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: #c5a059;
}

.menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: #c5a059;
}

/* LAYOUT MAIN PARAMETERS */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px 90px 20px;
}

.section-tag {
    display: block;
    color: #c5a059;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    color: #0a1529;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

/* ==========================================================================
   2. UPGRADED: LUXURY HERO INTERIOR INTRO BANNER
   ========================================================================== */
.about-hero {
    background: radial-gradient(circle at 0% 0%, #112240 0%, #0a1529 70%);
    color: #ffffff;
    padding: 60px 50px;
    margin-bottom: 70px;
    border-left: 5px solid #c5a059;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(10, 21, 41, 0.15);
}

.about-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(197, 160, 89, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-split-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-left-content {
    flex: 1.2;
    z-index: 2;
}

.section-tag-gold {
    display: inline-block;
    color: #c5a059;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.about-hero h2 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}

.gold-gradient-text {
    background: linear-gradient(135deg, #f3e7c4 0%, #c5a059 50%, #9a7b41 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.about-hero p {
    font-size: 1.15rem;
    color: #94a3b8;
    font-weight: 300;
    max-width: 650px;
    line-height: 1.7;
}

.hero-right-visual {
    flex: 0.8;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.floating-glass-card {
    position: relative;
    width: 100%;
    max-width: 340px;
    border-radius: 4px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(197, 160, 89, 0.2);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    animation: floatFrame 6s ease-in-out infinite;
}

.floating-glass-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-radius: 2px;
    filter: brightness(0.9) contrast(1.05);
}

.glass-badge {
    position: absolute;
    bottom: -15px;
    left: -20px;
    background: rgba(10, 21, 41, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid #c5a059;
    color: #c5a059;
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

@keyframes floatFrame {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

/* 3. SPLIT AREA HISTORY SYSTEM */
.history-block {
    margin-bottom: 80px;
}

.split-layout {
    display: flex;
    gap: 60px;
    align-items: center;
}

.split-text {
    flex: 1.2;
}

.split-text h3 {
    color: #0a1529;
    font-size: 2.2rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.split-text p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    color: #4a5568;
}

.split-img {
    flex: 0.8;
}

.img-wrapper {
    overflow: hidden;
    position: relative;
    box-shadow: 0 15px 35px rgba(10,21,41,0.08);
}

.img-wrapper img {
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    width: 100%;
}

.img-wrapper:hover img {
    transform: scale(1.03);
}

/* 4. LUXURY ITINERARY CARDS ENGINE */
.itinerary-section {
    margin-bottom: 80px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: #556070;
    margin-bottom: 35px;
}

.itinerary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.itinerary-card {
    background: #ffffff;
    border: 1px solid rgba(10,21,41,0.05);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.card-img-holder {
    overflow: hidden;
    margin-bottom: 15px;
}

.card-img-holder img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.itinerary-card:hover .card-img-holder img {
    transform: scale(1.04);
}

.card-meta {
    font-size: 0.78rem;
    font-weight: 700;
    color: #c5a059;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.itinerary-card h4 {
    font-size: 1.15rem;
    color: #0a1529;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-footer-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #edf2f7;
    padding-top: 15px;
}

.card-price {
    font-size: 0.85rem;
    color: #64748b;
}

.card-price strong {
    font-size: 1.2rem;
    color: #0a1529;
    display: block;
}

.card-btn {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid #0a1529;
    padding: 8px 16px;
    color: #0a1529;
}

.card-btn:hover {
    background: #0a1529;
    color: #ffffff;
}

/* 5. PURE CSS ACCORDION ENGINE */
.faq-section {
    margin-bottom: 80px;
}

.faq-grid {
    display: flex;
    gap: 40px;
    margin-top: 30px;
}

.faq-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background: #ffffff;
    border-bottom: 1px solid #edf2f7;
    overflow: hidden;
}

.faq-toggle {
    display: none;
}

.faq-trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    font-size: 1.05rem;
    font-weight: 600;
    color: #0a1529;
    cursor: pointer;
    position: relative;
    user-select: none;
    transition: color 0.3s ease;
}

.faq-trigger::after {
    content: '+';
    font-size: 1.4rem;
    color: #c5a059;
    transition: transform 0.3s ease;
    font-weight: 300;
}

.faq-item:hover .faq-trigger {
    color: #c5a059;
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    padding: 0 20px;
}

.faq-content p {
    font-size: 0.95rem;
    color: #556070;
    padding-bottom: 20px;
    line-height: 1.65;
}

.faq-toggle:checked ~ .faq-content {
    max-height: 200px;
}

.faq-toggle:checked ~ .faq-trigger::after {
    transform: rotate(45deg);
    color: #0a1529;
}

/* 6. PREMIUM DATA TABLE LAYOUT */
.guidelines-table-section {
    background: #ffffff;
    padding: 45px;
    border: 1px solid rgba(10,21,41,0.04);
}

.table-header-area {
    margin-bottom: 35px;
}

.guidelines-table-section h3 {
    color: #0a1529;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.guidelines-table-section p {
    color: #556070;
    font-size: 1.05rem;
}

.table-responsive-wrapper {
    width: 100%;
    overflow-x: auto;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
}

.info-table th, .info-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid #edf2f7;
    font-size: 0.98rem;
}

.info-table th {
    background-color: #0a1529;
    color: #ffffff;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1.5px;
    border-bottom: 2px solid #c5a059;
}

.info-table tr:nth-child(even) {
    background-color: #f8fafc;
}

.table-bold-tag {
    color: #0a1529;
    font-weight: 700;
}

/* 7. LUXURY COHESIVE FOOTER SYSTEM */
.main-footer {
    background-color: #0a1529;
    color: #ffffff;
    border-top: 3px solid #c5a059;
    padding: 80px 0 30px 0;
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 50px 20px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand h3 {
    font-size: 1.4rem;
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.footer-brand p {
    color: #94a3b8;
    font-size: 0.95rem;
    max-width: 380px;
}

.footer-links-col h4, .footer-academic h4 {
    color: #c5a059;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 22px;
}

.footer-links-col ul {
    list-style: none;
}

.footer-links-col ul li {
    margin-bottom: 12px;
}

.footer-links-col ul li a {
    color: #94a3b8;
    font-size: 0.95rem;
}

.footer-links-col ul li a:hover {
    color: #ffffff;
    padding-left: 5px;
}

.footer-academic p {
    color: #94a3b8;
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.footer-academic .stu-info {
    color: #ffffff;
    font-weight: 600;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px 0 20px;
    text-align: center;
    font-size: 0.85rem;
    color: #64748b;
}

.image-attribution {
    font-size: 0.75rem;
    color: #475569;
    margin-top: 8px;
}

/* ==========================================================================
   8. RESPONSIVENESS MATRIX
   ========================================================================== */
@media (max-width: 992px) {
          .menu-toggle {
        display: flex;
    }

    /* Transforming nav links block to sliding drawer layout */
    .nav-menu {
        position: fixed;
        top: 61px; /* Aligns perfectly right under the header */
        right: -100%;
        width: 280px;
        height: calc(100vh - 61px);
        background-color: rgba(10, 21, 41, 0.98);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 40px 30px;
        gap: 20px;
        transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        border-left: 1px solid rgba(197, 160, 89, 0.15);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.25);
        z-index: 1999;
    }

    /* Active drawer injection */
    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        font-size: 1rem;
        padding: 12px 0;
        width: 100%;
        text-align: left;
    }

    .nav-menu a:not(.nav-cta)::after {
        left: 0;
    }

    .nav-menu a:hover:not(.nav-cta)::after, 
    .nav-menu a.active:not(.nav-cta)::after {
        width: 40px; /* Short premium dynamic line marker */
    }

    .nav-cta {
        text-align: center;
        margin-top: 20px;
        width: 100%;
    }
    .hero-split-wrapper {
        flex-direction: column;
        text-align: center;
        gap: 50px;
    }
    .about-hero {
        padding: 50px 30px;
    }
    .about-hero p {
        margin: 0 auto;
    }
    .floating-glass-card {
        max-width: 300px;
    }
    .glass-badge {
        left: 50%;
        transform: translateX(-50%);
        bottom: -20px;
    }
    @keyframes floatFrame {
        0% { transform: translateY(0px); }
        50% { transform: translateY(-10px); }
        100% { transform: translateY(0px); }
    }

    .split-layout { 
        flex-direction: column; 
        gap: 40px; 
    }
    .split-text, .split-img { 
        width: 100%; 
    }
    .itinerary-grid { 
        grid-template-columns: repeat(2, 1fr); 
    }
    .faq-grid { 
        flex-direction: column; 
        gap: 15px; 
    }
    .guidelines-table-section { 
        padding: 30px 25px; 
    }
    .footer-grid { 
        grid-template-columns: 1fr; 
        gap: 40px; 
    }
}

/* BREAKPOINT FOR DRAWER NAV ENGINE */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex; /* Hamburger visible dynamically */
    }

    /* Transforming nav links block to sliding drawer layout */
    .nav-menu {
        position: fixed;
        top: 61px; /* Header bounding alignment */
        right: -100%;
        width: 280px;
        height: calc(100vh - 61px);
        background-color: rgba(10, 21, 41, 0.98);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        flex-direction: column;
        align-items: flex-start;
        padding: 40px 30px;
        gap: 20px;
        transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        border-left: 1px solid rgba(197, 160, 89, 0.15);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.25);
    }

    /* Slide drawer in view state */
    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        font-size: 1rem;
        padding: 12px 0;
        width: 100%;
    }

    .nav-menu a:not(.nav-cta)::after {
        left: 0;
    }

    .nav-menu a:hover:not(.nav-cta)::after, 
    .nav-menu a.active:not(.nav-cta)::after {
        width: 40px; /* Short elegant indicator accent */
    }

    .nav-cta {
        text-align: center;
        margin-top: 20px;
    }

    .about-hero h2 {
        font-size: 2.1rem;
    }
    .itinerary-grid { 
        grid-template-columns: 1fr; 
    }
    .info-table th, .info-table td { 
        padding: 12px 14px; 
        font-size: 0.92rem; 
    }
}