/* ------------------------------
   GLOBAL
------------------------------ */
body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: radial-gradient(circle at top, #0a0a0a, #000);
    color: white;
    overflow-x: hidden;
}

header {
    background: linear-gradient(90deg, #0055ff, #00aaff);
    padding: 25px;
    text-align: center;
    font-size: 34px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    box-shadow: 0 0 25px #0055ff;
    animation: fadeDown 0.8s ease;
}

@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ------------------------------
   CONTAINER
------------------------------ */
.container {
    width: 70%;
    margin: 40px auto;
    background: rgba(20, 20, 20, 0.7);
    padding: 35px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 25px #0055ff;
    animation: fadeUp 0.8s ease;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ------------------------------
   TITRES
------------------------------ */
h2 {
    text-align: center;
    font-size: 26px;
    margin-bottom: 20px;
}

h3 {
    margin-top: 40px;
    color: #00aaff;
    font-size: 22px;
    border-left: 4px solid #0055ff;
    padding-left: 12px;
    text-shadow: 0 0 10px #0055ff;
}

/* ------------------------------
   INPUTS
------------------------------ */
input, textarea, select {
    width: 100%;
    padding: 14px;
    margin-top: 12px;
    border-radius: 10px;
    border: none;
    background: rgba(30, 30, 30, 0.9);
    color: white;
    font-size: 15px;
    transition: 0.2s;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    box-shadow: 0 0 10px #0077ff;
}

/* ------------------------------
   BUTTONS
------------------------------ */
button {
    margin-top: 25px;
    width: 100%;
    padding: 16px;
    background: linear-gradient(90deg, #0055ff, #00aaff);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: 0.25s;
    font-weight: 600;
    box-shadow: 0 0 15px #0055ff;
}

button:hover {
    transform: scale(1.03);
    box-shadow: 0 0 25px #0077ff;
}

/* ------------------------------
   ADMIN PANEL
------------------------------ */
.response {
    background: rgba(25, 25, 25, 0.9);
    padding: 18px;
    border-radius: 10px;
    margin-top: 12px;
    border-left: 4px solid #0055ff;
    box-shadow: 0 0 10px #0033aa;
    animation: fadeUp 0.5s ease;
}

/* ------------------------------
   MOBILE
------------------------------ */
@media (max-width: 900px) {
    .container {
        width: 90%;
        padding: 25px;
    }

    header {
        font-size: 26px;
    }
}