/* Base Variables & Theme */
:root {
    --primary-dark: #0B2545;
    --primary-mid: #134074;
    --primary-light: #EEF4F8;
    --accent-gold: #C5A880;
    --accent-gold-hover: #A88B63;
    --text-dark: #1B2A4A;
    --text-light: #FFFFFF;
    --text-gray: #6F7D93;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --bg-dark: #081629;
    --glass-bg: rgba(11, 37, 69, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-soft: 0 10px 30px -10px rgba(11, 37, 69, 0.08);
    --shadow-medium: 0 20px 40px -15px rgba(11, 37, 69, 0.12);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-white);
}

body {
    font-family: var(--font-sans);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--bg-white);
}

/* Language Specific Fonts */
body.lang-kr {
    font-family: 'Inter', 'Noto Sans KR', sans-serif;
}
body.lang-cn {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
}
body.lang-tw {
    font-family: 'Inter', 'Noto Sans TC', sans-serif;
}
body.lang-ar {
    font-family: 'Noto Naskh Arabic', 'Inter', sans-serif;
    direction: rtl;
    text-align: right;
}

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

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

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: 1.5rem;
}

.section {
    padding-block: 7.5rem;
    position: relative;
}

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

.section-header {
    text-align: center;
    margin-bottom: 4.5rem;
    max-width: 700px;
    margin-inline: auto;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.header-line {
    width: 60px;
    height: 3px;
    background-color: var(--accent-gold);
    margin-inline: auto;
    border-radius: 2px;
}

.section-desc {
    margin-top: 1.25rem;
    font-size: 1.1rem;
    color: var(--text-gray);
}

/* Button System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.85rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background-color: var(--accent-gold);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background-color: var(--accent-gold-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(197, 168, 128, 0.25);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--text-light);
    transform: translateY(-2px);
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    padding-block: 1.5rem;
    background-color: transparent;
}

.header.scrolled {
    padding-block: 0.75rem;
    background-color: rgba(255, 255, 255, 0.85); /* Premium white glassmorphism bar */
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 0 10px 30px rgba(11, 37, 69, 0.08);
    border-bottom: 1px solid rgba(11, 37, 69, 0.05);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px; /* Increased from 1200px to push logo left and nav menus right */
}

.logo-link {
    display: block;
}

.logo {
    height: 56px; /* Increased for better Korean subtext readability */
    width: auto;
    transition: var(--transition-smooth);
}

.header.scrolled .logo {
    height: 48px; /* Slightly smaller on scroll to keep navigation compact */
}

.logo-white {
    display: none;
}

.logo-green {
    display: block;
}

/* When not scrolled, show white logo on dark hero */
.header:not(.scrolled) .logo-green {
    display: none;
}
.header:not(.scrolled) .logo-white {
    display: block;
}

/* When scrolled, show green/dark logo on white glass bar */
.header.scrolled .logo-white {
    display: none;
}
.header.scrolled .logo-green {
    display: block;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-list a {
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9); /* Bright/white nav text on dark hero */
}

.nav-list a:hover {
    color: var(--accent-gold);
}

.header.scrolled .nav-list a {
    color: var(--primary-dark); /* Dark nav text on scrolled white glass bar */
}

.header.scrolled .nav-list a:hover {
    color: var(--accent-gold);
}

.btn-nav-cta {
    padding: 0.5rem 1.25rem !important;
    font-size: 0.9rem !important;
    border-color: rgba(255, 255, 255, 0.5) !important;
    color: rgba(255, 255, 255, 0.9) !important;
}

.btn-nav-cta:hover {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold) !important;
    color: var(--bg-dark) !important;
}

.header.scrolled .btn-nav-cta {
    border-color: var(--primary-dark) !important;
    color: var(--primary-dark) !important;
}

.header.scrolled .btn-nav-cta:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark) !important;
    color: var(--text-light) !important;
}

/* Language selector */
.lang-selector {
    display: flex;
    gap: 0.4rem;
}

.lang-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.85);
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 3px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.header.scrolled .lang-btn {
    border-color: rgba(11, 37, 69, 0.2);
    color: var(--primary-dark);
}

.lang-btn:hover, .lang-btn.active {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold);
    color: var(--bg-dark);
}

.header.scrolled .lang-btn:hover,
.header.scrolled .lang-btn.active {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold);
    color: var(--bg-dark);
}

.menu-toggle {
    display: none;
}

/* Hero Section */
.hero-section {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    background-color: var(--bg-dark);
    padding-top: 90px; /* Reduced from 100px */
    padding-bottom: 1.5rem; /* Reduced from 3rem */
}

.hero-container {
    position: relative;
    max-width: 1200px;
    width: 90%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    margin-inline: auto;
    background-color: var(--bg-dark);
    display: flex;
    flex-direction: column;
}

.hero-main {
    position: relative;
    width: 100%;
    aspect-ratio: 1672 / 823; /* Aspect ratio of cropped 01_hero_image.png */
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: scale(1.05);
    transition: transform 6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-main:hover .hero-bg {
    transform: scale(1.01);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(11, 37, 69, 0.6) 0%,
        rgba(11, 37, 69, 0.35) 40%,
        rgba(11, 37, 69, 0) 80%
    );
    z-index: 1;
}

.hero-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 3rem 4rem;
    box-sizing: border-box;
    max-width: 700px;
}

.hero-content h1 {
    font-size: clamp(1.6rem, 3.2vw, 2.6rem);
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5); /* Shadow for clear readability on brighter background */
}

.hero-content p {
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 400;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5); /* Shadow for clear readability on brighter background */
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-footer-bar {
    width: 100%;
    background-color: #0b2545;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-contents-img {
    width: 100%;
    height: auto;
    display: block;
}

/* About Us */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-card {
    background-color: var(--bg-white);
    padding: 1.5rem;
    border-radius: 6px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(19, 64, 116, 0.05);
    display: flex;
    gap: 1.25rem;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-gold);
}

.feature-icon {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 0.15rem;
}

.feature-svg {
    width: 28px;
    height: 28px;
    color: var(--accent-gold);
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.feature-card:hover .feature-svg {
    transform: scale(1.1);
    color: var(--primary-mid);
}

.feature-card h4 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-gray);
}

/* Business Areas Cards */
.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.business-card {
    background-color: var(--bg-white);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(11, 37, 69, 0.05);
    transition: var(--transition-smooth);
}

.business-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-gold);
}

.card-image {
    height: 240px;
    overflow: hidden;
    position: relative;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.business-card:hover .card-image img {
    transform: scale(1.08);
}

.card-content {
    padding: 2rem;
}

.card-content h3 {
    font-size: 1.25rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-weight: 600;
}

.card-content p {
    font-size: 0.95rem;
    color: var(--text-gray);
}

/* Core Services */
.services-content-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.services-image-container {
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.services-list-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.25rem;
}

.service-item {
    display: flex;
    gap: 1.5rem;
}

.service-num {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-gold);
    line-height: 1;
    opacity: 0.8;
}

.service-item h4 {
    font-size: 1.15rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.service-item p {
    font-size: 0.95rem;
    color: var(--text-gray);
}

/* Process Section */
.flow-diagram {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-light);
    padding: 3rem 2rem;
    border-radius: 6px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 3.5rem;
}

.flow-step {
    flex: 1;
    text-align: center;
    padding: 1.5rem;
    background-color: var(--bg-white);
    border-radius: 6px;
    border: 1px solid rgba(19, 64, 116, 0.05);
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.flow-step-hub {
    border-color: var(--accent-gold);
    background-color: var(--primary-light);
}

.flow-icon {
    margin-bottom: 1.25rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.flow-svg {
    width: 48px;
    height: 48px;
    color: var(--accent-gold);
    transition: var(--transition-smooth);
}

.flow-step:hover .flow-svg {
    transform: scale(1.1);
    color: var(--primary-mid);
}

.flow-step-hub:hover .flow-svg {
    color: var(--accent-gold);
}

.flow-step h4 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.flow-step p {
    font-size: 0.85rem;
    color: var(--text-gray);
}

.flow-arrow {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-inline: 1.5rem;
}

.arrow-svg {
    width: 28px;
    height: 28px;
    color: var(--accent-gold);
    opacity: 0.6;
    transition: var(--transition-smooth);
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4.5rem;
}

.principle-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 6px;
    box-shadow: var(--shadow-soft);
    border-top: 3px solid var(--primary-mid);
}

.principle-card:nth-child(2) {
    border-top-color: var(--accent-gold);
}

.principle-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.bullet {
    width: 8px;
    height: 8px;
    background-color: var(--accent-gold);
    border-radius: 50%;
}

.principle-title h4 {
    font-size: 1.15rem;
    color: var(--primary-dark);
}

.principle-card p {
    font-size: 0.95rem;
    color: var(--text-gray);
}

.process-img-box {
    background-color: var(--bg-light);
    border-radius: 6px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--shadow-soft);
}

.process-img-box h3 {
    margin-bottom: 1.5rem;
    font-size: 1.35rem;
    color: var(--primary-dark);
}

.process-img {
    max-width: 90%;
    margin-inline: auto;
    border-radius: 4px;
    box-shadow: var(--shadow-medium);
}

/* Compliance Section */
.compliance-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.compliance-text h3 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.compliance-text p {
    font-size: 1.05rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.compliance-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.compliance-list li {
    font-size: 0.95rem;
    color: var(--text-gray);
    position: relative;
    padding-inline-start: 1.5rem;
}

.compliance-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-gold);
    font-weight: bold;
}

body.lang-ar .compliance-list li::before {
    left: auto;
    right: 0;
}

.compliance-image-container {
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

/* Global Network */
.network-map-box {
    background-color: var(--bg-dark);
    padding: 3rem;
    border-radius: 6px;
    margin-bottom: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
}

.network-map-img {
    max-width: 95%;
    height: auto;
}

.hubs-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
}

.hub-card {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 6px;
    border: 1px solid rgba(11, 37, 69, 0.05);
}

.hub-card h5 {
    font-size: 1.05rem;
    color: var(--primary-dark);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.hub-card p {
    font-size: 0.85rem;
    color: var(--text-gray);
    line-height: 1.5;
}

/* Logistics Section */
.logistics-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.logistics-img-box {
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.logistics-text h3 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.logistics-text p {
    font-size: 1.05rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
}

/* Contact / Inquiry Form */
.contact-box {
    background-color: var(--bg-light);
    padding: 3.5rem;
    border-radius: 6px;
    box-shadow: var(--shadow-soft);
    max-width: 900px;
    margin-inline: auto;
    border: 1px solid rgba(19, 64, 116, 0.05);
}

.inquiry-form {
    display: flex;
    flex-direction: column;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group-full {
    grid-column: span 2;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-dark);
}

.required {
    color: #DE4747;
}

.form-group input, 
.form-group select, 
.form-group textarea {
    padding: 0.85rem 1rem;
    border: 1px solid rgba(11, 37, 69, 0.15);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.95rem;
    background-color: var(--bg-white);
    color: var(--text-dark);
    transition: var(--transition-smooth);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(197, 168, 128, 0.15);
}

.checkbox-group {
    grid-column: span 2;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-block: 0.75rem;
}

.checkbox-group input {
    margin-top: 0.3rem;
    cursor: pointer;
}

.checkbox-group label {
    font-size: 0.85rem;
    color: var(--text-gray);
    cursor: pointer;
}

.btn-submit {
    margin-top: 1.5rem;
    padding-block: 1rem;
    font-size: 1.05rem;
    width: 100%;
}

/* Footer Section */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding-top: 5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1.5fr;
    gap: 4rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    height: 40px;
    margin-bottom: 1.5rem;
}

.company-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 1rem;
}

.kr-inline {
    font-size: 0.85rem;
    font-weight: 400;
    color: rgba(255,255,255,0.7);
    margin-inline-start: 0.25rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.contact-details a:hover {
    color: var(--accent-gold);
}

.footer-address h4, 
.footer-disclaimer h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.footer-address p {
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
}

.footer-disclaimer p {
    font-size: 0.8rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.55);
}

.footer-bottom {
    padding-block: 2rem;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
}

/* Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.appear {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .about-grid, 
    .services-content-grid, 
    .compliance-grid, 
    .logistics-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .services-image-container, 
    .compliance-image-container, 
    .logistics-img-box {
        max-width: 700px;
        margin-inline: auto;
    }

    .hubs-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
    
    .footer-disclaimer {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .section {
        padding-block: 5rem;
    }
    
    .section-header {
        margin-bottom: 3rem;
    }
    
    .hero-section {
        min-height: auto;
        padding-top: 80px;
        padding-bottom: 2rem;
    }
    
    .hero-container {
        aspect-ratio: auto;
        height: auto;
        border-radius: 0;
        box-shadow: none;
        width: 100%;
    }

    .hero-main {
        aspect-ratio: auto;
        height: auto;
        overflow: visible;
    }
    
    .hero-bg {
        position: relative;
        height: 380px;
        width: 100%;
        transform: none;
    }
    
    .hero-container:hover .hero-bg {
        transform: none;
    }
    
    .hero-overlay {
        background: linear-gradient(
            to bottom,
            rgba(11, 37, 69, 0.3) 0%,
            rgba(11, 37, 69, 0.1) 100%
        );
    }
    
    .hero-content {
        position: relative;
        height: auto;
        padding: 2.5rem 1.5rem;
        max-width: 100%;
        align-items: center;
        text-align: center;
        background-color: var(--bg-dark);
    }
    
    .hero-content h1 {
        font-size: 2rem;
        margin-bottom: 1rem;
        text-align: center;
    }
    
    .hero-content p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
        width: 100%;
    }
    
    .business-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin-inline: auto;
    }
    
    .flow-diagram {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        margin-block: 0.5rem;
    }
    
    .principles-grid {
        grid-template-columns: 1fr;
    }
    
    .hubs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group-full {
        grid-column: span 1;
    }
    
    .checkbox-group {
        grid-column: span 1;
    }
    
    /* Navigation drawer for mobile */
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 25px;
        height: 18px;
        background: transparent;
        border: none;
        cursor: pointer;
        z-index: 1001;
    }
    
    .bar {
        width: 100%;
        height: 2px;
        background-color: var(--text-light); /* White bars on dark hero */
        transition: var(--transition-smooth);
    }
    
    .header.scrolled .bar {
        background-color: var(--primary-dark); /* Dark bars on scrolled white glass bar */
    }
    
    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--bg-dark);
        padding: 6rem 2.5rem;
        box-shadow: -10px 0 30px rgba(0,0,0,0.15);
        transition: var(--transition-smooth);
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
    }
    
    .nav-list a {
        color: var(--text-light) !important;
        font-size: 1.15rem;
    }
    
    .btn-nav-cta {
        border-color: var(--accent-gold) !important;
        background-color: var(--accent-gold) !important;
        color: var(--bg-dark) !important;
        width: 100%;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-disclaimer {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .hubs-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-box {
        padding: 2rem 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}