/* styles.css */
:root {
    /* Light Mode Variables */
    --primary-green: #2ecc71;
    --dark-green: #27ae60;
    --text-color: #333333;
    --bg-color: #f9f9f9;
    --card-bg: #ffffff;
    --nav-bg: #ffffff;
    --footer-bg: #2c3e50;
    --footer-text: #ffffff;
    --border-color: #ddd;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Dark Mode Variables */
body.dark-mode {
    --primary-green: #2ecc71;
    --dark-green: #2ecc71;
    --text-color: #ecf0f1;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --nav-bg: #1e1e1e;
    --footer-bg: #000000;
    --footer-text: #bdc3c7;
    --border-color: #333;
    --shadow: 0 4px 6px rgba(0,0,0,0.5);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

/* Navigation */
header {
    background-color: var(--nav-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s;
}

nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-green);
    text-decoration: none;
}

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

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Theme Toggle Button */
#theme-toggle {
    background: none;
    border: 2px solid var(--text-color);
    color: var(--text-color);
    padding: 5px 10px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.8rem;
    margin-left: 20px;
    transition: all 0.3s;
}

#theme-toggle:hover {
    background: var(--text-color);
    color: var(--bg-color);
}

/* Hamburger Menu (Mobile) */
.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px;
    transition: all 0.3s ease;
}

/* Main Content */
main {
    flex: 1;
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1rem;
    width: 100%;
}

h1, h2, h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    background-color: var(--primary-green);
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: opacity 0.3s;
}

.btn:hover {
    opacity: 0.9;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    text-align: center;
    padding: 1rem;
    margin-top: auto;
    transition: background-color 0.3s;
}

/* Page Specifics */
.hero {
    text-align: center;
    padding: 4rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    transition: background-color 0.3s;
}

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

.card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 5px solid var(--primary-green);
    transition: background-color 0.3s;
}

/* Form Styles */
form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1rem;
}

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

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    border-radius: 4px;
    font-size: 1rem;
}

/* Responsive Mobile Nav */
@media screen and (max-width: 768px) {
    .nav-links {
        position: absolute;
        right: 0px;
        height: 92vh;
        top: 8vh;
        background-color: var(--nav-bg);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 60%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
        z-index: 999;
    }
    
    .nav-links li {
        opacity: 0;
        margin: 2rem 0;
    }
    
    .burger {
        display: block;
    }
}

.nav-active {
    transform: translateX(0%);
}

@keyframes navLinkFade {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0px); }
}