:root {
    --primary-color: #4CAF50;
    --primary-light: #e8f5e9;
    --primary-mid: #a5d6a7;
    --primary-dark: #2e7d32;
    --accent-color: #81c784;
    --bg-color: #f9fbf9;
    --text-color: #333333;
    --text-muted: #666666;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --border-radius: 12px;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
}

.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-dark) !important;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    background-color: var(--white);
    transition: transform 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    border-radius: 8px;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 8px rgba(76, 175, 80, 0.3);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    border-radius: 8px;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Minimalist eco sections */
.eco-section {
    padding: 80px 0;
}

.eco-title {
    color: var(--primary-dark);
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.eco-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.eco-card-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Auth Pages */
.auth-container {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-card {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
}

/* Custom Alert */
.alert {
    border-radius: var(--border-radius);
    border: none;
}

/* Dashboard Sidebar/Nav */
.sidebar {
    background-color: var(--white);
    border-right: 1px solid var(--primary-light);
    height: 100vh;
    padding: 2rem;
}

.nav-link {
    color: var(--text-muted);
    font-weight: 500;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .eco-section {
        padding: 40px 0;
    }
}