/* ==== RESET & GLOBAL ==== */
body {
    margin: 0;
    padding: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background: #f2f2f2;
}

/* ==== HEADER ==== */
header {
    background-color: #33691e; /* VERT FONCÉ */
    color: white;
    text-align: center;
    padding: 30px 20px;
    border-bottom: 5px solid #9fba1a;
}

header .logo-header {
    width: 120px;
    margin-bottom: 10px;
}

header h1 {
    font-size: 40px;
    margin: 5px 0;
}

header h2 {
    font-size: 22px;
    margin: 3px 0;
}

header h3 {
    font-size: 18px;
    margin: 3px 0;
    opacity: 0.9;
}

/* ==== CONTENU CENTRAL ==== */
.container {
    margin: 50px auto;
    width: 380px;
    background: white;
    padding: 30px 40px;
    border-radius: 5px;
    box-shadow: 0 0 15px rgba(0,0,0,0.2);
}

/* ==== LOGIN ==== */
.login-box h4 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 20px;
    color: #33691e;
}

.login-box input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 3px;
    border: 1px solid #33691e;
    font-size: 16px;
}

.login-box button {
    width: 100%;
    padding: 12px;
    margin-top: 15px;
    background-color: #33691e;
    color: white;
    border: none;
    border-radius: 3px;
    font-size: 18px;
    cursor: pointer;
    transition: 0.3s ease;
}

.login-box button:hover {
    background-color: #9fba1a;
}