:root {
    --primary: #1a2a6c;
    --secondary: #27ae60;
    --accent: #f39c12;
    --bg: #f8f9fa;
    --text: #2d3436;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Inter', 'Segoe UI', sans-serif; }

body { background: var(--bg); color: var(--text); padding-bottom: 80px; }

/* Responsive Header */
header {
    background: white; padding: 15px 5%;
    display: flex; justify-content: space-between; align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky; top: 0; z-index: 1000;
}

.logo-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--primary); }

/* Centered Main Container */
.main-container {
    max-width: 800px; margin: 0 auto; padding: 20px;
    display: flex; flex-direction: column; align-items: center;
}

.card {
    background: white; width: 100%; padding: 25px;
    border-radius: 20px; margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.02);
}

/* Modern Form Elements */
input, select, button {
    width: 100%; padding: 14px; margin: 10px 0;
    border-radius: 12px; border: 1.5px solid #eee;
    font-size: 16px; outline: none; transition: 0.3s;
}

input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(26, 42, 108, 0.1); }

button {
    background: var(--primary); color: white; border: none;
    font-weight: 700; cursor: pointer; text-transform: uppercase; letter-spacing: 1px;
}

/* Navigation - Web (Top) */
.web-nav { display: flex; gap: 20px; }
.web-nav a { text-decoration: none; color: var(--text); font-weight: 600; font-size: 14px; }

/* Navigation - Mobile (Bottom Dock) */
.mobile-nav {
    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
    width: 90%; max-width: 400px; background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px); display: flex; justify-content: space-around;
    padding: 12px; border-radius: 25px; box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.nav-item { text-align: center; color: #b2bec3; text-decoration: none; font-size: 10px; }
.nav-item.active { color: var(--primary); }
.nav-item i { font-size: 20px; display: block; margin-bottom: 2px; }

@media (min-width: 769px) { .mobile-nav { display: none; } }
@media (max-width: 768px) { .web-nav { display: none; } }