/* Global Reset & Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --bg-light: #f5f9fc;
    --white: #ffffff;
    --primary-blue: #2b6cb0;
    --dark-navy: #1a365d;
    --text-dark: #2d3748;
    --border-color: #cbd5e0;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Navigation Bar */
.navbar {
    background-color: var(--dark-navy);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 10%;
}

.navbar .logo {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary-blue);
}

/* Hero & Main Content Layout */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.hero-section {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    padding: 3rem;
    margin-bottom: 3rem;
}

h1, h2, h3 {
    color: var(--dark-navy);
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 2.5rem;
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

/* Framework / KPI Feature List */
.method-list {
    list-style: square;
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.method-list li {
    margin-bottom: 0.5rem;
}

/* Collective Teaser Section (Lower Page) */
.collective-teaser {
    background-color: var(--white);
    border-left: 5px solid var(--primary-blue);
    border-top: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 2.5rem;
}

/* Sharp Buttons & Hyperlinks */
.btn-link {
    display: inline-block;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 2px;
}

.btn-link:hover {
    color: var(--dark-navy);
    border-bottom-color: var(--dark-navy);
}

/* Forms (For upcoming pages) */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

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

.form-control:focus {
    outline: 2px solid var(--primary-blue);
}

.btn-submit {
    background-color: var(--dark-navy);
    color: var(--white);
    border: none;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-submit:hover {
    background-color: var(--primary-blue);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: #718096;
    font-size: 0.9rem;
}