:root {
    --bg: #08090c;
    --surface: #101216;
    --surface-2: #15171d;
    --border: rgba(255, 255, 255, 0.09);
    --border-input: rgba(255, 255, 255, 0.12);
    --text: #f4f5f7;
    --text-muted: #969ba5;
    --accent-red: #E6192B;
    --accent-red-hover: #FF2A3D;
}

* { box-sizing: border-box; }

body {
    align-items: center;
    background-color: var(--bg);
    color: var(--text);
    display: flex;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
    min-height: 100dvh; /* segue la toolbar mobile; fallback a 100vh sopra */
    justify-content: center;
    margin: 0;
    /* overflow-x nascosto per contenere il motivo diagonale (left:-90px); overflow-y
       auto così, quando la tastiera mobile riduce la viewport, il box resta scrollabile. */
    overflow-x: hidden;
    overflow-y: auto;
    /* Spazio dai bordi su mobile + rispetto delle safe-area (notch/home-indicator). */
    padding: max(24px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right))
             max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    position: relative;
}

/* Motivo diagonale rosso discreto (richiamo del sito GEA) */
body::before {
    content: "";
    position: absolute;
    top: -90px;
    left: -90px;
    width: 220px;
    height: 220px;
    border-left: 3px solid rgba(230, 25, 43, 0.55);
    border-bottom: 3px solid rgba(230, 25, 43, 0.28);
    transform: rotate(45deg);
    pointer-events: none;
}

.login-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
    max-width: 360px;
    padding: 2.5rem 2.25rem;
    position: relative;
    text-align: center;
    width: 100%;
}

/* Piastrina bianca: il wordmark e' un SVG trasparente e sull'header scuro
   servirebbe comunque un fondo chiaro per restare leggibile. */
.login-logo {
    background: #ffffff;
    border-radius: 12px;
    display: inline-block;
    margin-bottom: 16px;
    padding: 12px 18px;
}

.login-logo img {
    display: block;
    height: 42px;
    width: auto;
}

h1 {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.6px;
    margin: 0 0 1.75rem;
    text-transform: uppercase;
}

.form-group {
    margin-bottom: 15px;
    text-align: left;
}

.form-label {
    color: var(--text-muted);
    display: block;
    font-size: 0.85rem;
}

.label-text {
    display: block;
    margin-bottom: 6px;
}

input[type="text"],
input[type="password"] {
    background: var(--surface-2);
    border: 1px solid var(--border-input);
    border-radius: 9px;
    color: var(--text);
    display: block;
    font-size: 1rem;
    padding: 12px 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}

input[type="text"]:focus,
input[type="password"]:focus {
    border-color: var(--accent-red);
    box-shadow: 0 0 0 3px rgba(230, 25, 43, 0.18);
    outline: none;
}

button {
    background: var(--accent-red);
    border: none;
    border-radius: 9px;
    color: #fff;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-top: 10px;
    padding: 12px;
    transition: background 0.2s, box-shadow 0.2s;
    width: 100%;
}

button:hover {
    background: var(--accent-red-hover);
    box-shadow: 0 0 14px rgba(230, 25, 43, 0.40);
}

.error-msg {
    background-color: rgba(230, 25, 43, 0.12);
    border: 1px solid rgba(230, 25, 43, 0.40);
    border-radius: 8px;
    color: #FF8A92;
    font-size: 0.85rem;
    margin-bottom: 16px;
    padding: 10px;
}

/* ==========================================================================
   MOBILE — su schermi stretti riduce il padding della card e il logo,
   così il box respira senza toccare i bordi. Desktop invariato.
   ========================================================================== */
@media (max-width: 420px) {
    .login-box {
        border-radius: 14px;
        padding: 2rem 1.5rem;
    }

    .login-logo {
        margin-bottom: 14px;
        padding: 10px 16px;
    }

    .login-logo img {
        height: 38px;
    }

    h1 {
        margin-bottom: 1.5rem;
    }
}