:root {
    --s-color: #dc3545;
    --bg-body: #f0f4f8;
    --bg-card: #ffffff;
    --text-main: #1a1a1a;
    --text-labels: #334155;
    --border-color: #e2e8f0;
    --radius: 10px;
}

body {
    font-family: 'Montserrat', sans-serif;
    background: var(--bg-body);
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.error-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-top: 4px solid var(--s-color); /* Identidad de SAGA ERP */
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,.10);
    text-align: center;
    max-width: 420px;
    width: 90%;
}

.brand-name { font-weight: 700; font-size: 1.2rem; margin-bottom: 1.5rem; color: var(--text-main); }

.error-code { font-size: 5rem; font-weight: 800; color: var(--s-color); line-height: 1; margin-bottom: 0.5rem; }

h1 { font-size: 1.1rem; color: var(--text-main); margin-bottom: 0.5rem; font-weight: 700; }

p { font-size: 0.85rem; color: var(--text-labels); margin-bottom: 2rem; line-height: 1.5; }

.btn-home {
    display: inline-flex;
    padding: 0.5rem 1.5rem;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--s-color);
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    transition: opacity 0.2s;
}
.btn-home:hover { opacity: 0.85; }