:root {
    /* Colors */
    --color-primary: #1c263d;
    --color-primary-light: #2c3a55;
    --color-accent: #ff6b00;
    --color-accent-hover: #ff8533;
    --color-blue: #007bff;
    --color-blue-dark: #0056b3;
    --color-text-main: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-bg-body: #f4f6f9;
    --color-bg-card: #ffffff;
    
    /* Info Box Colors */
    --color-success-bg: #e8f5e9;
    --color-success-border: #4caf50;
    --color-info-bg: #e3f2fd;
    --color-info-border: #2196f3;
    --color-warning-bg: #fff3e0;
    --color-warning-border: #ff9800;
    --color-danger-bg: #ffebee;
    --color-danger-border: #f44336;

    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --line-height-base: 1.6;
    --font-size-base: 1rem;

    /* Spacing & Layout */
    --container-width: 1200px;
    --container-narrow: 800px;
    --radius-sm: 0.3125rem; /* 5px */
    --radius-md: 0.625rem; /* 10px */
    --radius-lg: 1.25rem; /* 20px */
    --radius-xl: 1.875rem; /* 30px */
    
    /* Effects */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

ul, li {
    list-style: none;
}

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

/* Utilities (Mapping HTML classes to CSS) */
.flex { display: flex; }
.aic { align-items: center; }
.jcc { justify-content: center; }
.fxg { flex-grow: 1; }
.fxs { flex-shrink: 0; }
.block { display: block; }
.no-under { text-decoration: none; }
.text-fff { color: var(--color-white); }
.text-white { color: var(--color-white); }
.center { text-align: center; }
.ttu { text-transform: uppercase; }

/* Font Weights & Sizes */
.fw500 { font-weight: 500; }
.fz18 { font-size: 1.125rem; }

/* Spacing Utilities */
.mr-20 { margin-right: 1.25rem; }
.ml-10 { margin-left: 0.625rem; }
.mb-30 { margin-bottom: 1.875rem; }
.mt-40 { margin-top: 2.5rem; }
.pt-10 { padding-top: 0.625rem; }
.pb-10 { padding-bottom: 0.625rem; }
.pt-20 { padding-top: 1.25rem; }
.pb-20 { padding-bottom: 1.25rem; }
.pl-20 { padding-left: 1.25rem; }
.pr-20 { padding-right: 1.25rem; }
.h-42 { height: 2.625rem; }

/* Colors & Backgrounds */
.bg-blue-049 { 
    background-color: rgba(28, 42, 69, 0.8); 
    backdrop-filter: blur(10px);
}
.bg-orang { 
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    box-shadow: 0 4px 15px rgba(255, 107, 0, 0.3);
}
.bg-orang:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 0, 0.4);
}

.bg-blue {
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
}
.bg-blue:hover {
    filter: brightness(1.1);
}

/* Borders & Shapes */
.round-20 { border-radius: var(--radius-lg); }
.border-5 { border-radius: var(--radius-sm); }

/* Layout Containers */
.wrap {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
}
.wrap_2 {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
}

/* Header Styles */
header {
    background-color: var(--color-primary);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.logo a {
    display: block;
    width: 120px;
    height: 40px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 30"><text y="25" fill="white" font-weight="bold" font-family="sans-serif" font-size="24">LOGO</text></svg>') no-repeat center left;
    background-size: contain;
}

.menu-main ul {
    padding: 0.5rem 1rem;
    gap: 1.5rem;
}

.menu-main a {
    position: relative;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    opacity: 0.9;
}

.menu-main a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.menu-main a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-fast);
}

.menu-main a:hover::after {
    width: 100%;
}

/* Icons within menu */
.Icon_icon__2Th0s {
    fill: currentColor;
    height: 1.25rem;
    width: auto;
    display: block;
}

.link-aviator svg {
    width: 4rem;
    height: auto;
    fill: #fff;
    transition: var(--transition-base);
}
.link-aviator:hover svg {
    filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.5));
}

/* Buttons in Header */
.head-top-left a {
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    transition: all var(--transition-base);
}

/* Content Styles */
.main {
    min-height: 80vh;
}

.content {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 2.5rem;
    margin-top: 2rem;
}

article h1 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--color-primary);
    margin-bottom: 2rem;
    font-weight: 700;
    line-height: 1.2;
}

article h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--color-primary-light);
    margin: 2.5rem 0 1.5rem;
    font-weight: 600;
}

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

/* Main CTA Button */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    cursor: pointer;
    text-align: center;
    min-width: 200px;
    transition: var(--transition-base);
}

/* Images in content */
figure.image {
    margin: 2rem 0;
    text-align: center;
}

figure.image img {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
    max-height: 400px;
    object-fit: cover;
    width: 100%;
}

figure.image img:hover {
    transform: scale(1.02);
}

/* Info Boxes */
.info-box {
    margin: 2rem 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
    padding: 1.25rem 1.5rem;
    border-left: 5px solid transparent;
}

.info-box p {
    margin-bottom: 0;
    color: var(--color-text-main);
}

.info-box-success {
    background-color: var(--color-success-bg);
    border-left-color: var(--color-success-border);
}

.info-box-info {
    background-color: var(--color-info-bg);
    border-left-color: var(--color-info-border);
}

.info-box-warning {
    background-color: var(--color-warning-bg);
    border-left-color: var(--color-warning-border);
}

.info-box-danger {
    background-color: var(--color-danger-bg);
    border-left-color: var(--color-danger-border);
}

/* Footer */
footer {
    background-color: var(--color-primary);
    color: rgba(255,255,255,0.7);
    padding: 2rem 0;
    margin-top: auto;
    text-align: center;
    font-size: 0.9rem;
}

.copy {
    text-align: center;
    color: #999;
    font-size: 0.875rem;
    border-top: 1px solid #eee;
    padding-top: 1.5rem;
}

/* Mobile Menu Toggle (Hamburger) */
.open-menu {
    cursor: pointer;
    padding: 5px;
}

.open-menu svg {
    stroke: var(--color-white);
    transition: stroke var(--color-accent);
}

.open-menu:hover svg {
    stroke: var(--color-accent);
}

/* Utility visibility classes */
.hide { display: none !important; }

/* Responsive Media Queries */

@media (max-width: 1024px) {
    .hide_992 { display: none !important; }
    .show_992 { display: block !important; }
    
    .menu-main {
        display: none; /* In a real scenario, this would be a toggle menu */
    }
    
    .wrap_2 {
        padding: 0 1.5rem;
    }
}

@media (max-width: 768px) {
    .content {
        padding: 1.5rem;
        margin-top: 1rem;
    }

    article h1 {
        margin-bottom: 1.5rem;
    }
    
    .btn {
        width: 100%;
        padding: 0.875rem 1rem;
    }
    
    .hide_550 { display: none !important; }
    
    .head {
        justify-content: space-between;
    }
    
    .mr-20 { margin-right: 0.5rem; }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .logo a {
        width: 100px;
    }
    
    .info-box {
        padding: 1rem;
    }
}