* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--bg-content);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Utilitarios */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.hidden { display: none !important; }

/* Indicador de loading do HTMX */
.htmx-indicator {
    opacity: 0;
    transition: opacity 200ms ease-in;
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    opacity: 1;
}

.htmx-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 25, 35, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    pointer-events: none;
}
.spinner {
    width: 44px;
    height: 44px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
#toast-container {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    background: var(--color-success);
    color: #fff;
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    font-size: 13px;
    animation: toastIn 0.25s ease;
}
.toast.error { background: var(--color-danger); }
@keyframes toastIn { from { transform: translateY(-10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }