/* =========================================================
   PORTAIL CLIENT – STYLE ULTRA OPTIMISÉ (Version Premium)
   Inspiré Goldman Sachs / JP Morgan – Noir / Anthracite / Or
   ========================================================= */

/* ----------------------------
   PALETTE & VARIABLES GLOBALES
---------------------------- */
:root {
    --gold: #d4a63b;
    --gold-dark: #b88a2c;
    --panel-bg: rgba(10, 10, 10, 0.82);
    --white: #ffffff;
    --shadow: 0 25px 55px rgba(0, 0, 0, 0.6);
    --radius: 16px;
}

/* ----------------------------
   BACKGROUND ULTRA NET
---------------------------- */
body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: url("/client_assets/img/clients.jpg") center center no-repeat fixed;
    background-size: cover;
    color: var(--white);
    overflow: hidden;
}

/* ----------------------------
   VOILE SOMBRE LÉGER
---------------------------- */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.28); /* léger obscurcissement */
    z-index: 1;
}

/* ----------------------------
   BOÎTE DE CONNEXION PREMIUM
---------------------------- */
.login-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 380px;
    padding: 35px;
    background: var(--panel-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards, floatUp 1.2s ease forwards;
    z-index: 2;
}

/* ----------------------------
   ANIMATIONS
---------------------------- */
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes floatUp {
    from { transform: translate(-50%, -40%); }
    to   { transform: translate(-50%, -50%); }
}

/* ----------------------------
   TITRE
---------------------------- */
.login-box h1 {
    margin-bottom: 20px;
    font-size: 22px;
    font-weight: bold;
    color: var(--gold);
}

/* ----------------------------
   FORMULAIRE
---------------------------- */
.login-box label {
    display: block;
    font-size: 14px;
    margin-bottom: 4px;
    text-align: left;
    color: #ddd;
}

.login-box input {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 18px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid #bbb;
    border-radius: 6px;
    font-size: 15px;
    color: #222;
}

/* ----------------------------
   BOUTON DE VALIDATION
---------------------------- */
.login-box button {
    width: 100%;
    padding: 12px 18px;
    font-size: 15px;
    font-weight: bold;
    border: none;
    border-radius: 6px;
    background: var(--gold);
    color: #fff;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.login-box button:hover {
    background: var(--gold-dark);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.45);
    transform: translateY(-2px);
}

/* ----------------------------
   MESSAGES D'ERREUR
---------------------------- */
.error-box {
    background: rgba(200,0,0,0.8);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 15px;
    color: #fff;
    text-align: center;
    font-size: 14px;
}

/* ----------------------------
   RESPONSIVE MOBILE
---------------------------- */
@media (max-width: 600px) {
    .login-box {
        width: 90%;
        padding: 25px;
    }

    .login-box h1 {
        font-size: 20px;
    }
}