:root {
    /* Brand Colors */
    --color-primary: #000049;
    --color-primary-dark: #000033;
    --color-primary-light: #1a1a73;
    --color-accent: #ffd700;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-700: #374151;
    --color-gray-900: #111827;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    /* Z-index */
    --z-header: 1000;
    --z-dropdown: 1100;
    --z-mobile-menu: 1200;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Make component loader wrapper for header sticky */
body>div[data-include*="header"] {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: var(--z-header);
}

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

/* Header Styles */
.site-header {
    position: -webkit-sticky;
    /* Safari */
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-header);
    transition: all var(--transition-normal);
}

.site-header.scrolled {
    box-shadow: var(--shadow-xl);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo a {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    transition: opacity var(--transition-fast);
    white-space: nowrap;
}

.logo a:hover {
    opacity: 0.9;
}

.logo img {
    height: 50px;
    width: auto;
    display: block;
    flex-shrink: 0;
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin: 0;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

/* Search Box */
.search-container {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.search-form {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    width: 180px;
    padding: 0.5rem 0.75rem;
    padding-right: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    transition: var(--transition-normal);
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--color-accent);
}

.search-button {
    position: absolute;
    right: 4px;
    background: transparent;
    border: none;
    color: var(--color-white);
    padding: var(--spacing-xs);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.search-button:hover {
    color: var(--color-accent);
}

.search-button svg {
    width: 18px;
    height: 18px;
}

/* Navigation */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-white);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

/* Dropdown Menus */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 280px;
    background: rgba(0, 0, 73, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0);
    transition: opacity var(--transition-normal) 500ms, visibility var(--transition-normal) 500ms;
    margin-top: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: visible;
    pointer-events: none;
}

.has-dropdown:hover>.dropdown-menu,
.has-dropdown.active>.dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
    transition-delay: 0ms;
}

/* Keep parent dropdown visible when hovering nested items */
.dropdown-menu:hover {
    opacity: 1;
    visibility: visible;
}

.dropdown-menu li {
    position: relative;
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.dropdown-menu a:hover,
.dropdown-menu a:focus {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--color-accent);
    padding-left: calc(var(--spacing-lg) + 0.25rem);
}

/* Nested Dropdown (Third Level) */
.dropdown-menu .has-dropdown>.dropdown-menu {
    top: 0;
    left: 100%;
    margin-top: 0;
    margin-left: var(--spacing-xs);
}

/* Show nested dropdown on hover */
.dropdown-menu .has-dropdown:hover>.dropdown-menu,
.dropdown-menu .has-dropdown.active>.dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.dropdown-menu .has-dropdown>a::after {
    content: '›';
    position: absolute;
    right: var(--spacing-md);
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
}

.dropdown-menu .has-dropdown:hover>a::after {
    transform: translateX(3px);
}

/* Bridge the gap between text and nested dropdown to prevent menu closing */
/* Bridge the gap between text and nested dropdown to prevent menu closing */
@media (min-width: 769px) {
    .dropdown-menu .has-dropdown::before {
        content: '';
        position: absolute;
        top: 0;
        right: -20px;
        width: 20px;
        height: 100%;
        background: transparent;
        z-index: 10;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.35rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: calc(var(--z-mobile-menu) + 1);
    position: relative;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    background: linear-gradient(to bottom right, var(--color-gray-50) 0%, var(--color-gray-100) 100%);
    overflow: hidden;
}

/* Hexagonal Pattern Background */
.hexagon-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15;
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 50px, rgba(0, 0, 73, 0.03) 50px, rgba(0, 0, 73, 0.03) 51px),
        repeating-linear-gradient(60deg, transparent, transparent 50px, rgba(0, 0, 73, 0.03) 50px, rgba(0, 0, 73, 0.03) 51px),
        repeating-linear-gradient(120deg, transparent, transparent 50px, rgba(0, 0, 73, 0.03) 50px, rgba(0, 0, 73, 0.03) 51px);
    pointer-events: none;
}

.hexagon-pattern::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 0, 73, 0.08) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }

    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.8;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.company-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.company-description {
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.company-description p {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.company-description strong {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

/* Subsidiary Cards */
.subsidiaries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.subsidiary-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.subsidiary-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.card-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

.subsidiary-card h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.subsidiary-card p {
    font-size: 0.95rem;
    color: var(--color-gray-700);
    line-height: 1.7;
}

/* Footer */
.site-footer {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-content p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.back-to-top {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.back-to-top:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.back-to-top svg {
    width: 18px;
    height: 18px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .company-title {
        font-size: 2.5rem;
    }

    .nav-menu {
        gap: 0;
    }

    .nav-link {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }
}

/* Hide company name on medium screens to save space */
@media (max-width: 1280px) {
    .logo h1 {
        display: none;
    }

    .header-content {
        gap: var(--spacing-sm);
    }
}

@media (max-width: 768px) {

    /* Hide search on mobile to save space */
    .search-container {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .main-nav {
        display: flex;
        flex-direction: column;
        position: relative;
    }

    /* Keep hamburger visible, hide menu */
    .nav-menu {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.95);
        z-index: var(--z-mobile-menu);
        flex-direction: column;
        align-items: stretch;
        padding: 5rem var(--spacing-xl) var(--spacing-xl);
        overflow-y: auto;
    }

    .main-nav.active .nav-menu {
        display: flex;
    }

    .nav-item {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-link {
        padding: var(--spacing-lg);
        font-size: 1.125rem;
    }

    .dropdown-menu {
        position: static;
        opacity: 0;
        visibility: hidden;
        transform: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-normal) 0ms, opacity var(--transition-normal) 0ms;
        background: rgba(255, 255, 255, 0.05);
        margin: 0;
        border-radius: 0;
        pointer-events: auto;
    }

    .has-dropdown.active>.dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: 1000px;
        pointer-events: auto;
    }

    .dropdown-menu .has-dropdown>.dropdown-menu {
        left: 0;
        margin-left: var(--spacing-lg);
    }

    /* Remove hover delay on mobile */
    .has-dropdown:hover>.dropdown-menu {
        transition-delay: 0ms;
    }

    .logo img {
        height: 40px;
    }

    .logo h1 {
        font-size: 1rem;
    }

    .company-title {
        font-size: 2rem;
    }

    .company-description p {
        font-size: 1rem;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo img {
        height: 35px;
    }

    .logo h1 {
        font-size: 0.9rem;
    }

    .company-title {
        font-size: 1.75rem;
    }

    .hero-section {
        min-height: auto;
    }

    .hero-content {
        padding: var(--spacing-2xl) 0;
    }
}

/* Smooth Animations */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}