:root {
    --green-dark: #123b2a;
    --green-primary: #176b45;
    --green-light: #e8f2ec;
    --gold: #e6b83f;
    --text: #26352d;
    --muted: #718078;
    --white: #ffffff;
}

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

body {
    min-height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, #dceee2, transparent 45%),
        linear-gradient(135deg, #f4f7f4, #e8efe9);
}

.login-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 25px;
}

.login-card {
    width: 100%;
    max-width: 440px;
    background: var(--white);
    border-radius: 18px;
    padding: 38px;
    box-shadow: 0 15px 45px rgba(18, 59, 42, 0.12);
}

.brand {
    text-align: center;
}

.brand-icon {
    width: 68px;
    height: 68px;
    margin: 0 auto 17px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 18px;
    background: var(--green-dark);
    color: var(--white);
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 1px;
    border-bottom: 4px solid var(--gold);
}

.brand h1 {
    color: var(--green-dark);
    font-size: 23px;
    letter-spacing: 1.5px;
}

.subtitle {
    margin-top: 7px;
    font-size: 15px;
    color: var(--muted);
}

.slogan {
    margin-top: 17px;
    color: var(--green-primary);
    font-size: 10px;
    font-weight: bold;
    line-height: 1.6;
    letter-spacing: 1.3px;
}

.divider {
    height: 1px;
    background: #e8eee9;
    margin: 28px 0;
}

.login-content h2 {
    font-size: 23px;
    color: var(--green-dark);
}

.description {
    margin-top: 8px;
    margin-bottom: 25px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.5;
}

form {
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: bold;
}

input {
    width: 100%;
    height: 48px;
    margin-bottom: 19px;
    padding: 0 14px;
    border: 1px solid #dce5de;
    border-radius: 9px;
    outline: none;
    font-size: 14px;
    transition: border 0.2s, box-shadow 0.2s;
}

input:focus {
    border-color: var(--green-primary);
    box-shadow: 0 0 0 3px rgba(23, 107, 69, 0.10);
}

button {
    height: 49px;
    margin-top: 5px;
    border: none;
    border-radius: 9px;
    background: var(--green-dark);
    color: var(--white);
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}

button:hover {
    background: var(--green-primary);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

#loginMessage {
    margin-top: 14px;
    font-size: 13px;
    text-align: center;
}

footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e8eee9;
    text-align: center;
}

footer p {
    font-size: 11px;
    color: var(--green-dark);
    font-weight: bold;
}

footer span {
    display: block;
    margin-top: 7px;
    color: var(--muted);
    font-size: 10px;
}

@media (max-width: 480px) {
    .login-card {
        padding: 28px 22px;
    }

    .brand h1 {
        font-size: 20px;
    }
}