* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #388e3c;         /* Deep Green */
    --secondary: #6abf69;       /* Light Green */
    --accent: #a3c76d;          /* Earthy Green/Olive */
    --success: #43a047;         /* Success Green */
    --warning: #fbc02d;         /* Sun Yellow */
    --error: #d84315;           /* Earthy Red/Brown */
    --gray-50: #f4f8f4;         /* Lightest greenish gray */
    --gray-100: #e8f5e9;        /* Very light green */
    --gray-200: #c8e6c9;        /* Light green */
    --gray-300: #a5d6a7;        /* Green */
    --gray-400: #81c784;        /* Medium green */
    --gray-500: #66bb6a;        /* Medium-dark green */
    --gray-600: #388e3c;        /* Deep green */
    --gray-700: #2e7031;        /* Dark green */
    --gray-800: #255d27;        /* Deeper green */
    --gray-900: #1b3c1a;        /* Deepest green */
}

html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: white;
    color: var(--gray-900);
    line-height: 1.6;
}

/* Header & Navigation */
.header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 64px;
    display: flex;
    align-items: center;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo & Branding */
.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.75rem;
}

.logo-text {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
    margin-right: 0.3rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    display: inline;
}

.nav-buttons {
    display: flex;
    gap: 1rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    border: none;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--secondary);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-900);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-outline {
    border: 1px solid var(--gray-300);
    background: white;
    color: var(--gray-900);
}

.btn-outline:hover {
    background: var(--gray-50);
}

.btn-large {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    width: 100%;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 0.5rem;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: white;
    padding: 3rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h3 {
    margin-bottom: 1rem;
}

.footer-col a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-700);
    text-align: center;
    color: var(--gray-400);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 2rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.gap-2 {
    gap: 1rem;
}

.hidden {
    display: none;
}