:root {
    --primary-bg: #137547;
    --card-bg: #0b472c;
    --text-light: #fdfaf6;
    --accent-green: #38b000;
    --bright-green: #70e000;
    --highlight-red: #e63946;
    --input-border: #38b00099;
}

body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-light);
}

.container {
    max-width: 420px;
    margin: 60px auto;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    color: var(--text-light);
}

.logo {
    text-align: center;
    margin-bottom: 20px;
}

.logo img {
    width: 80px;
}

.logo h2 {
    font-size: 24px;
    color: var(--bright-green);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--bright-green);
}

.form-group input {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--input-border);
    background-color: #0a3b2c;
    color: var(--text-light);
}

.form-group input::placeholder {
    color: #d8ffe6;
}

.form-group img {
    margin-top: 5px;
    display: block;
    border-radius: 5px;
}

.btn {
    width: 100%;
    padding: 12px;
    border: none;
    background: var(--accent-green);
    color: #ffffff;
    font-size: 16px;
    border-radius: 10px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn:hover {
    background: var(--bright-green);
}

.link-btn {
    display: block;
    text-align: center;
    margin-top: 12px;
    color: var(--bright-green);
    text-decoration: none;
}

.link-btn:hover {
    text-decoration: underline;
}

.alert {
    background-color: var(--highlight-red);
    color: white;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
    text-align: center;
}

.success {
    background-color: #38b00033;
    color: var(--accent-green);
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
    text-align: center;
}