:root {
    --aero-bg: #e0f7fa;
    --aero-text: #023e8a;
    --aero-primary: #0077b6;
    --aero-secondary: #00b4d8;
    --aero-accent: #90e0ef;
    --aero-surface: #ffffff;
    --font-aero: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--aero-bg); color: var(--aero-text);
    font-family: var(--font-aero);
    line-height: 1.6;
    background-image: 
        linear-gradient(135deg, rgba(255,255,255,0.5) 25%, transparent 25%, transparent 50%, rgba(255,255,255,0.5) 50%, rgba(255,255,255,0.5) 75%, transparent 75%, transparent);
    background-size: 40px 40px;
    animation: move-bg 20s linear infinite;
}
@keyframes move-bg { 0% { background-position: 0 0; } 100% { background-position: 40px 40px; } }
a { text-decoration: none; color: inherit; }

.aero-container { max-width: 1100px; margin: 0 auto; padding: 20px;}

/* Header */
.aero-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 40px; background: rgba(255,255,255,0.8);
    backdrop-filter: blur(10px); border-radius: 50px;
    box-shadow: 0 5px 15px rgba(0, 119, 182, 0.1);
    margin-bottom: 50px; border: 1px solid rgba(255,255,255,0.5);
}
.aero-brand {
    font-size: 28px; font-weight: 900; color: var(--aero-primary);
    display: flex; align-items: center; gap: 10px;
}
.aero-brand::before { content: '✈️'; font-size: 32px; }
.aero-nav { display: flex; gap: 30px; }
.aero-nav a {
    font-size: 16px; font-weight: bold; color: var(--aero-text);
    text-transform: uppercase; letter-spacing: 1px; transition: all 0.3s;
    padding: 5px 15px; border-radius: 20px;
}
.aero-nav a:hover, .aero-nav a.active { background: var(--aero-accent); color: var(--aero-primary); }

/* Hero */
.aero-hero {
    text-align: center; padding: 80px 20px; margin-bottom: 60px;
    background: rgba(255,255,255,0.7); backdrop-filter: blur(10px);
    border-radius: 30px; box-shadow: 0 10px 30px rgba(0, 119, 182, 0.1);
    border: 1px solid rgba(255,255,255,0.5); position: relative; overflow: hidden;
}
.aero-hero::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(144, 224, 239, 0.3) 0%, transparent 70%);
    animation: pulse 5s ease-in-out infinite alternate; z-index: -1;
}
@keyframes pulse { 0% { transform: scale(1); } 100% { transform: scale(1.2); } }
.aero-hero h1 { font-size: 48px; color: var(--aero-primary); margin-bottom: 20px; }
.aero-hero p { font-size: 18px; color: var(--aero-text); margin-bottom: 40px; max-width: 700px; margin-left: auto; margin-right: auto;}
.btn-aero {
    display: inline-block; padding: 15px 40px; font-size: 18px; font-weight: bold;
    color: #fff; background: linear-gradient(135deg, var(--aero-primary), var(--aero-secondary));
    border-radius: 50px; transition: all 0.3s; box-shadow: 0 5px 15px rgba(0, 119, 182, 0.3); margin: 0 10px;
}
.btn-aero:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(0, 119, 182, 0.4); }
.btn-aero-alt {
    display: inline-block; padding: 15px 40px; font-size: 18px; font-weight: bold;
    color: var(--aero-primary); background: rgba(255,255,255,0.8); border: 2px solid var(--aero-primary);
    border-radius: 50px; transition: all 0.3s; margin: 0 10px;
}
.btn-aero-alt:hover { background: var(--aero-accent); color: var(--aero-text);}

/* Stats */
.aero-stats {
    display: flex; justify-content: space-around; margin-bottom: 80px;
}
.as-item {
    background: rgba(255,255,255,0.8); backdrop-filter: blur(10px);
    padding: 30px; border-radius: 20px; text-align: center; flex: 1; margin: 0 15px;
    box-shadow: 0 5px 15px rgba(0, 119, 182, 0.1); border: 1px solid rgba(255,255,255,0.5);
}
.as-val { font-size: 40px; font-weight: 900; color: var(--aero-secondary); margin-bottom: 5px;}
.as-lbl { font-size: 14px; font-weight: bold; color: var(--aero-text); text-transform: uppercase; letter-spacing: 1px;}

/* Grid */
.aero-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-bottom: 80px;}
.ag-card {
    background: rgba(255,255,255,0.8); backdrop-filter: blur(10px);
    padding: 40px 30px; border-radius: 20px; text-align: center;
    box-shadow: 0 5px 15px rgba(0, 119, 182, 0.1); border: 1px solid rgba(255,255,255,0.5);
    transition: transform 0.3s;
}
.ag-card:hover { transform: translateY(-10px); }
.ag-icon { font-size: 48px; margin-bottom: 20px; }
.ag-card h3 { font-size: 22px; margin-bottom: 15px; color: var(--aero-primary);}
.ag-card p { font-size: 15px; color: var(--aero-text); text-align: justify;}

/* Nodes */
.aero-nodes { margin-bottom: 80px; text-align: center;}
.aero-nodes h2 { font-size: 32px; margin-bottom: 40px; color: var(--aero-primary);}
.node-flight { display: flex; flex-wrap: wrap; justify-content: center; gap: 15px;}
.n-aero {
    padding: 12px 25px; background: rgba(255,255,255,0.8); backdrop-filter: blur(10px);
    border-radius: 30px; font-size: 15px; font-weight: bold; color: var(--aero-primary);
    box-shadow: 0 3px 10px rgba(0, 119, 182, 0.1); border: 1px solid rgba(255,255,255,0.5);
}
.n-aero span { color: var(--aero-secondary); margin-left: 10px;}

/* FAQ */
.aero-faq { margin-bottom: 80px; max-width: 800px; margin-left: auto; margin-right: auto;}
.aero-faq h2 { font-size: 32px; margin-bottom: 40px; text-align: center; color: var(--aero-primary);}
.faq-item {
    margin-bottom: 25px; background: rgba(255,255,255,0.8); backdrop-filter: blur(10px);
    padding: 25px; border-radius: 15px; box-shadow: 0 5px 15px rgba(0, 119, 182, 0.1);
    border-left: 5px solid var(--aero-secondary);
}
.fq-q { font-size: 18px; font-weight: bold; color: var(--aero-primary); margin-bottom: 10px;}
.fq-a { font-size: 15px; color: var(--aero-text);}

footer { text-align: center; padding: 30px; border-top: 1px solid rgba(0, 119, 182, 0.2); font-weight: bold; color: var(--aero-primary);}

@media (max-width: 900px) {
    .aero-header { flex-direction: column; gap: 15px; border-radius: 20px; padding: 20px;}
    .aero-stats { flex-direction: column; gap: 20px; }
    .as-item { margin: 0; }
    .aero-grid { grid-template-columns: 1fr; }
    .btn-aero, .btn-aero-alt { display: block; margin: 10px auto; width: 80%;}
}