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

body { font-family: 'Segoe UI', sans-serif; background-color: #f0f7f4; color: #2c3e50; display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 20px; }

.main-container { width: 100%; max-width: 500px; background: #ffffff; padding: 50px; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.08); text-align: center; }

.logo { max-width: 200px; width: 100%; height: auto; margin-bottom: 30px; }

h1 { color: #27ae60; margin-bottom: 15px; }
p { color: #555; margin-bottom: 20px; line-height: 1.6; }
.highlight-line { width: 50px; height: 3px; background-color: #27ae60; margin: 20px auto; }

/* Form */
form { display: flex; flex-direction: column; gap: 15px; }
input { padding: 12px; border: 1px solid #ddd; border-radius: 8px; font-size: 1rem; width: 100%; }

/* Captcha */
.captcha-wrapper { display: flex; flex-direction: column; align-items: flex-start; width: 100%; margin: 5px 0; }
.captcha-wrapper label { font-size: 0.8rem; font-weight: bold; color: #27ae60; margin-bottom: 5px; text-transform: uppercase; }
.captcha-display { display: flex; align-items: center; gap: 10px; width: 100%; }
.captcha-text { font-family: 'Courier New', monospace; font-size: 22px; font-weight: bold; letter-spacing: 4px; background: #f0f0f0; padding: 10px 15px; border-radius: 8px; color: #333; text-decoration: line-through; user-select: none; border: 1px solid #ddd; }
.captcha-display input { flex: 1; text-align: center; margin: 0; }

/* Button */
button { padding: 12px; background: #27ae60; color: white; border: none; border-radius: 8px; font-weight: bold; cursor: pointer; transition: 0.3s; margin-top: 10px; }
button:hover { background: #219150; }

#responseMessage { margin-top: 20px; font-weight: bold; }
footer { margin-top: 30px; font-size: 0.85rem; color: #bdc3c7; }


.slogan {
    font-size: 1.1rem;
    color: #27ae60;
    font-weight: 600;
    margin-top: -15px;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-instruction {
    font-size: 0.95rem;
    color: #34495e;
    margin-bottom: 10px;
    font-weight: 500;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: #f0f7f4;
    color: #27ae60;
    border-radius: 50%;
    transition: 0.3s;
}

.social-icons a:hover {
    background: #27ae60;
    color: #ffffff;
}