/* ===== CSS Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: #2c3e50;
    background-color: #f5f1eb;
}

/* ===== Header ===== */
header {
    background-color: #2d5016;
    color: #fff;
    padding: 20px 0;
    text-align: center;
    border-bottom: 4px solid #a0522d;
}

header h1 {
    font-size: 2.2em;
    letter-spacing: 2px;
    text-transform: uppercase;
}

header p {
    font-size: 1em;
    margin-top: 5px;
    color: #c8dbb4;
}

/* ===== Navigation ===== */
nav {
    background-color: #3a6b1e;
    text-align: center;
    padding: 0;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    display: block;
    color: #fff;
    text-decoration: none;
    padding: 14px 28px;
    font-size: 1em;
    transition: background-color 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
    background-color: #a0522d;
}

/* ===== Main Content ===== */
main {
    max-width: 960px;
    margin: 30px auto;
    padding: 0 20px;
}

main h2 {
    font-size: 1.8em;
    color: #2d5016;
    margin-bottom: 15px;
    border-bottom: 2px solid #a0522d;
    padding-bottom: 8px;
}

main h3 {
    font-size: 1.3em;
    color: #3a6b1e;
    margin: 20px 0 10px;
}

main p {
    margin-bottom: 15px;
    text-align: justify;
}

main img {
    max-width: 100%;
    height: auto;
    border: 3px solid #a0522d;
    border-radius: 6px;
    margin: 15px 0;
    display: block;
}

.image-row {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 20px 0;
}

.image-row img {
    width: 300px;
    height: 200px;
    object-fit: cover;
}

/* ===== Feature Sections (JS interactive) ===== */
.feature-box {
    background-color: #fff;
    border: 2px solid #3a6b1e;
    border-radius: 8px;
    padding: 25px;
    margin: 25px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.feature-box h3 {
    margin-top: 0;
    color: #2d5016;
}

.feature-box label {
    display: block;
    margin: 10px 0 5px;
    font-weight: bold;
    color: #2c3e50;
}

.feature-box input,
.feature-box select {
    width: 100%;
    max-width: 350px;
    padding: 10px;
    border: 1px solid #aaa;
    border-radius: 4px;
    font-size: 1em;
    margin-bottom: 5px;
}

.feature-box button {
    display: inline-block;
    background-color: #2d5016;
    color: #fff;
    border: none;
    padding: 12px 30px;
    font-size: 1em;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 15px;
    transition: background-color 0.3s ease;
}

.feature-box button:hover {
    background-color: #a0522d;
}

.result-box {
    margin-top: 15px;
    padding: 15px;
    background-color: #e8f5e9;
    border-left: 4px solid #2d5016;
    border-radius: 4px;
    font-size: 1.05em;
    display: none;
}

/* ===== Footer ===== */
footer {
    background-color: #2d5016;
    color: #c8dbb4;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    border-top: 4px solid #a0522d;
}

footer a {
    color: #fff;
    text-decoration: underline;
}

footer a:hover {
    color: #f0c040;
}

footer p {
    margin: 5px 0;
    font-size: 0.9em;
}