/* =========================================
   BUTTON WIDGETS
   Änderungsprotokoll: 2026-06-03 | composer-session | @skill-css-rules, @skill-change-provenance | Buttons ohne runde Ecken, ohne Verlauf und ohne Schatten
   ========================================= */

.base-button-standard {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    border: none;
    outline: none;
    text-decoration: none;
}

.base-button-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-base);
}

.base-button-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    border: none;
    outline: none;
    text-decoration: none;
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: none;
}

.base-button-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

.base-button-primary-hidden {
    display: none;
}

.base-button-primary-lg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    white-space: nowrap;
    flex-shrink: 0;
    font-size: var(--font-size-base);
    border-radius: 0;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    border: none;
    outline: none;
    text-decoration: none;
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: none;
}

.base-button-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    outline: none;
    text-decoration: none;
    background-color: var(--color-surface);
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}

.base-button-secondary-lg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    white-space: nowrap;
    flex-shrink: 0;
    font-size: var(--font-size-base);
    border-radius: 0;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    outline: none;
    text-decoration: none;
    background-color: var(--color-surface);
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}

/* .base-button-icon-only | Änderungsprotokoll: 2026-07-13 | agent | @skill-css-rules, @skill-change-provenance | Icon im Nav-Login-Button vertikal und horizontal zentrieren */
.base-button-icon-only {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 3.25rem;
    height: 3.25rem;
    min-width: 3.25rem;
    min-height: 3.25rem;
    padding: 0;
    border-radius: 0;
    text-decoration: none;
    box-sizing: border-box;
}

.base-button-icon {
    width: 1.3rem;
    height: 1.3rem;
    display: block;
}

.base-visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.base-button-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    border: none;
    outline: none;
    text-decoration: none;
    background-color: transparent;
    color: var(--color-text-muted);
}

.base-button-ghost-lg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: var(--font-size-base);
    border-radius: 0;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    border: none;
    outline: none;
    text-decoration: none;
    background-color: transparent;
    color: var(--color-text-muted);
}

.base-button-delete {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    border: none;
    outline: none;
    text-decoration: none;
    background-color: var(--color-error);
    color: var(--color-text-inverse);
}

/* Änderungsprotokoll: 2026-06-22 | User-Anforderung | @skill-css-rules, @skill-change-provenance | User-Initialen-Button rund statt viereckig */
.base-button-user-initials {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    min-height: 2.5rem;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    text-decoration: none;
}