/* Erro. */
.page-error {
    --error-bg: #222;
    --error-text: #5c6c8c;
    --error-heading: #2d3748;
    min-height: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--error-bg);
    color: var(--error-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
.page-error-document { height: 100%; }
.error-container { width: 90%; max-width: 500px; margin: 0 auto; text-align: center; }
.window-frame { position: relative; margin: 20px; padding: 40px 20px; border-radius: 8px; background: #fff; box-shadow: 0 4px 6px rgba(0,0,0,.1); }
.window-dots { position: absolute; top: 15px; left: 15px; display: flex; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background-color: #e2e8f0; }
.dot:nth-child(1) { background-color: #fc8181; }
.dot:nth-child(2) { background-color: #f6e05e; }
.dot:nth-child(3) { background-color: #68d391; }
.error-code { margin: 0; color: var(--error-heading); font-size: 120px; font-weight: 700; line-height: 1; opacity: .8; }
.error-face { margin: 20px 0; color: var(--error-text); font-size: 60px; opacity: .5; }
.error-message { max-width: 400px; margin: 20px auto; color: var(--error-text); font-size: 16px; line-height: 1.6; }
.error-message strong { margin-top: 10px; color: var(--error-heading); text-transform: uppercase; }
.error-message small { display: block; margin-top: 10px; color: var(--error-text); font-size: 13px; opacity: .7; }
.error-details { margin: 10px 0; color: var(--error-text); font-size: 14px; opacity: .8; }
.btn-home { display: inline-block; margin-top: 20px; padding: 10px 20px; border-radius: 5px; background-color: #3182ce; color: #fff; text-decoration: none; transition: background-color .2s; }
.btn-home:hover { background-color: #2c5282; }