:root {
    --primary-color: #108043;
    --dark-bg: #0d1b2a;
    --light-bg: #f2f6f5;
    --text-color: #333333;
    --card-bg: #ffffff;
}

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

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

/* NAVBAR */
.navbar {
    background-color: var(--dark-bg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 50px;
}

.logo {
    color: #00e676;
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 1px;
}

.navbar nav a {
    color: #ffffff;
    text-decoration: none;
    margin-left: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    padding-bottom: 5px;
}

.navbar nav a.active {
    color: #00e676;
    border-bottom: 2px solid #00e676;
}

/* CONTAINER */
.container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.basin-section {
    margin-bottom: 60px;
}

.section-title {
    color: var(--primary-color);
    font-size: 2.2rem;
    margin-bottom: 30px;
    font-weight: 700;
}

/* CARDS */
.cards-grid {
    display: grid;
    gap: 25px;
}

.cards-grid.three-cols {
    grid-template-columns: repeat(3, 1fr);
}

.cards-grid.two-cols {
    grid-template-columns: repeat(2, 1fr);
}

.card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.icon-box {
    background-color: #e8f5e9;
    color: var(--primary-color);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.card h3 {
    margin-bottom: 12px;
    color: #1a252c;
}

.card p {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 8px;
}

.card p.desc {
    margin-top: 15px;
}

.bordered-left {
    border-left: 4px solid var(--primary-color);
}

/* SPLIT LAYOUTS */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.text-block h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.text-block ul {
    margin-top: 15px;
    padding-left: 20px;
}

.text-block li {
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.image-block img {
    width: 100%;
    border-radius: 8px;
    background-color: #ddd;
    display: block;
}

/* STAT CARD */
.stat-card {
    background-color: var(--primary-color);
    color: white;
    border-radius: 12px;
    padding: 50px 20px;
    text-align: center;
}

.stat-number {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
}

.stat-label {
    margin-top: 10px;
    font-size: 1.1rem;
    font-weight: 500;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .cards-grid.three-cols,
    .cards-grid.two-cols,
    .split-layout {
        grid-template-columns: 1fr;
    }
}