:root {
    --primary-navy: #0B2545;
    --accent-green: #137547;
    --light-bg: #F8F9FA;
    --card-bg: #FFFFFF;
    --text-dark: #212529;
    --text-muted: #6C757D;
    --border-color: #E2E8F0;
}

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

body {
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header & Navbar */
header {
    background-color: #FFFFFF;
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.brand-logo {
    height: 42px;
    width: auto;
    object-fit: contain;
}

.brand-text {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-navy);
    letter-spacing: -0.5px;
}

.brand-text span {
    color: var(--accent-green);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: var(--primary-navy);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    transition: color 0.2s;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-green);
}

/* Dropdown styling */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #FFFFFF;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border-radius: 6px;
    list-style: none;
    min-width: 220px;
    padding: 0.5rem 0;
    display: none;
    border: 1px solid var(--border-color);
}

.nav-item:hover .dropdown-menu {
    display: block;
}

.dropdown-item {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.2s, color 0.2s;
}

.dropdown-item:hover {
    background-color: rgba(19, 117, 71, 0.08);
    color: var(--accent-green);
}

/* Main Layout */
main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.hero {
    background: linear-gradient(135deg, var(--primary-navy), #133a6b);
    color: white;
    padding: 4rem 2rem;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 2.5rem;
    box-shadow: 0 4px 20px rgba(11, 37, 69, 0.15);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 750px;
    margin: 0 auto;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.card h2 {
    color: var(--primary-navy);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Progress Bar Component */
.progress-container {
    background: var(--border-color);
    border-radius: 8px;
    height: 30px;
    width: 100%;
    display: flex;
    overflow: hidden;
    margin: 1.5rem 0;
}

.progress-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 0.85rem;
    height: 100%;
    transition: width 0.3s ease;
}

.seg-watch { background-color: #0B2545; width: 25%; }
.seg-data { background-color: #133a6b; width: 25%; }
.seg-systems { background-color: #105c37; width: 25%; }
.seg-action { background-color: #137547; width: 25%; }

/* Form Styles */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-navy);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
}

.btn {
    background-color: var(--accent-green);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s;
}

.btn:hover {
    background-color: #0e5835;
}

/* Footer */
footer {
    background-color: var(--primary-navy);
    color: white;
    text-align: center;
    padding: 2rem 1.5rem;
    margin-top: 3rem;
    font-size: 0.9rem;
}

footer p {
    opacity: 0.8;
}