/* FOND GLOBAL */
body {
    margin: 0;
    padding: 0;
    font-family: system-ui, sans-serif;
    background: radial-gradient(circle at top, #0A0F1F 0, #000000 80%);
    color: #e0f2ff;
}

/* HEADER ADMIN */
.admin-header {
    background: rgba(0, 229, 255, 0.1);
    border-bottom: 1px solid rgba(0, 229, 255, 0.3);
    padding: 15px 25px;
    font-size: 1.3rem;
    font-weight: bold;
    text-shadow: 0 0 10px #00E5FF;
    backdrop-filter: blur(10px);
}

/* LAYOUT */
.admin-container {
    display: flex;
    min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
    width: 240px;
    background: rgba(10, 20, 40, 0.7);
    border-right: 1px solid rgba(0, 229, 255, 0.2);
    backdrop-filter: blur(10px);
    padding-top: 20px;
}

.sidebar a {
    display: block;
    padding: 14px 20px;
    color: #cfe9ff;
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: 0.2s;
}

.sidebar a:hover {
    background: rgba(0, 229, 255, 0.1);
    border-left: 3px solid #00E5FF;
    color: #00E5FF;
}

/* CONTENU */
.admin-content {
    flex: 1;
    padding: 30px;
}

/* CARTES */
.card {
    background: rgba(10, 20, 40, 0.6);
    border: 1px solid rgba(0, 229, 255, 0.25);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
}

/* FORMULAIRES */
input, textarea {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    border-radius: 10px;
    border: 1px solid rgba(0, 229, 255, 0.4);
    background: rgba(0, 0, 0, 0.4);
    color: #e0f2ff;
}

button {
    margin-top: 15px;
    padding: 12px 20px;
    border-radius: 999px;
    border: none;
    background: linear-gradient(90deg, #00E5FF, #4CC9F0);
    color: #020617;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.6);
}

button:hover {
    filter: brightness(1.15);
}