/* =========================================
   BUTTON WIDGETS
   Keine box-shadow (briefing/design.md 003.007); Fokus per outline.
   ========================================= */

:root {
    --base-button-radius: 0.625rem;
    --base-button-padding-y: 0.6875rem;
    --base-button-padding-y-lg: 0.875rem;
    --base-button-user-initials-size: 2.5rem;
    --base-button-transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

[class*="base-button"] {
    box-shadow: none;
}

[class*="base-button"]:hover,
[class*="base-button"]:focus,
[class*="base-button"]:focus-visible,
[class*="base-button"]:active,
[class*="base-button"]:disabled:hover {
    box-shadow: none;
    transform: none;
}

[class*="base-button"]:focus-visible {
    outline: 2px solid var(--color-link);
    outline-offset: 2px;
}

.base-button-primary-on-header:focus-visible,
.base-button-ghost-on-dark-header:focus-visible,
.base-button-user-initials-on-header:focus-visible {
    outline-color: rgba(255, 255, 255, 0.92);
}

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

.base-button-standard:hover {
    background-color: var(--color-button-primary-bg-hover);
}

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

.base-button-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-width: 8.25rem;
    padding: var(--base-button-padding-y) 1.625rem;
    border-radius: var(--base-button-radius);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--base-button-transition);
    border: 1px solid var(--color-button-primary-border);
    outline: none;
    text-decoration: none;
    background-color: var(--color-button-primary-bg);
    color: var(--color-text-inverse);
}

.base-button-primary:hover {
    background-color: var(--color-button-primary-bg-hover);
}

.base-button-primary[aria-disabled="true"] {
    pointer-events: none;
    opacity: 0.55;
    cursor: not-allowed;
}

.base-button-primary-on-header {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: var(--base-button-padding-y) 1.375rem;
    border-radius: var(--base-button-radius);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--base-button-transition);
    border: 1px solid rgba(255, 255, 255, 0.92);
    outline: none;
    text-decoration: none;
    background: var(--color-header-foreground);
    color: var(--color-header-on-primary-button-text);
}

.base-button-primary-on-header:hover {
    background: rgba(255, 255, 255, 0.96);
    color: var(--color-header-on-primary-button-text-hover);
}

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

.base-button-primary-dashboard-prioritise:hover {
    background-color: var(--dashboard-prioritise-button-bg-hover);
}

.base-button-primary-dashboard-prioritise[aria-disabled="true"] {
    pointer-events: none;
    opacity: 0.55;
    cursor: not-allowed;
}

.base-button-primary-lg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: var(--base-button-padding-y-lg) 2rem;
    font-size: var(--font-size-base);
    border-radius: var(--base-button-radius);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--base-button-transition);
    border: 1px solid var(--color-button-primary-border);
    outline: none;
    text-decoration: none;
    background-color: var(--color-button-primary-bg);
    color: var(--color-text-inverse);
}

.base-button-primary-lg:hover {
    background-color: var(--color-button-primary-bg-hover);
}

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

.base-button-secondary:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-button-secondary-border-hover);
    color: var(--color-button-secondary-text-hover);
}

.base-button-secondary-lg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: var(--base-button-padding-y-lg) 2rem;
    font-size: var(--font-size-base);
    border-radius: var(--base-button-radius);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--base-button-transition);
    outline: none;
    text-decoration: none;
    background: var(--color-background);
    color: var(--color-button-secondary-text);
    border: 1.5px solid var(--color-button-secondary-border);
}

.base-button-secondary-lg:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-button-secondary-border-hover);
    color: var(--color-button-secondary-text-hover);
}

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

.base-button-ghost:hover {
    color: var(--color-button-ghost-text-hover);
    background-color: var(--color-surface-hover);
    border-color: var(--color-button-ghost-border-hover);
}

.base-button-ghost-on-dark-header {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: var(--base-button-padding-y) 1.25rem;
    border-radius: var(--base-button-radius);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--base-button-transition);
    border: 1px solid rgba(255, 255, 255, 0.28);
    outline: none;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-inverse);
    backdrop-filter: blur(6px);
}

.base-button-ghost-on-dark-header:hover {
    color: var(--color-text-inverse);
    background-color: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.45);
}

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

.base-button-ghost-lg:hover {
    color: var(--color-button-ghost-text-hover);
    background-color: var(--color-surface-hover);
    border-color: var(--color-button-ghost-border-hover);
}

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

.base-button-delete:hover {
    background: var(--color-error-hover);
    border-color: var(--color-error-hover);
}

.base-button-delete:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.base-button-delete:disabled:hover {
    background: var(--color-error);
    border-color: var(--color-error);
}

.base-button-user-initials {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: var(--base-button-user-initials-size);
    min-height: var(--base-button-user-initials-size);
    width: var(--base-button-user-initials-size);
    height: var(--base-button-user-initials-size);
    padding: 0;
    border-radius: 50%;
    background-color: var(--color-button-primary-bg);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    text-decoration: none;
    border: 2px solid var(--color-button-primary-border);
    transition: var(--base-button-transition);
}

.base-button-user-initials:hover {
    background-color: var(--color-button-primary-bg-hover);
}

.base-button-user-initials-on-header {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: var(--base-button-user-initials-size);
    min-height: var(--base-button-user-initials-size);
    width: var(--base-button-user-initials-size);
    height: var(--base-button-user-initials-size);
    padding: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    text-decoration: none;
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    transition: var(--base-button-transition);
}

.base-button-user-initials-on-header:hover {
    background: rgba(255, 255, 255, 0.22);
    border-color: var(--color-text-inverse);
}