/* 
 * Kaisergarten Restaurant - Buttons CSS
 * Modernisierte Button-Stile mit Fokus auf Barrierefreiheit und Benutzerfreundlichkeit
 */

/* Basis-Button-Stil */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-smooth);
    text-decoration: none;
    border: 2px solid transparent;
    font-family: 'Raleway', sans-serif;
    letter-spacing: 0.03em;
    position: relative;
    overflow: hidden;
    z-index: 1;
    line-height: 1.4;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
}

/* Verbesserte Fokus-Stile für Barrierefreiheit */
.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb, 196, 18, 48), 0.4);
}

.btn:focus:not(:focus-visible) {
    box-shadow: none;
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb, 196, 18, 48), 0.4);
}

/* Deaktivierter Zustand */
.btn:disabled,
.btn.disabled {
    opacity: 0.65;
    pointer-events: none;
    cursor: not-allowed;
}

/* Icon-Stile innerhalb von Buttons */
.btn i,
.btn svg {
    margin-right: 0.5rem;
    font-size: 0.9em;
    transition: transform var(--transition-speed) var(--transition-bounce);
}

.btn i.icon-right,
.btn svg.icon-right {
    margin-right: 0;
    margin-left: 0.5rem;
}

.btn:hover i,
.btn:hover svg {
    transform: translateX(2px);
}

.btn:hover i.icon-left,
.btn:hover svg.icon-left {
    transform: translateX(-2px);
}

/* Primary Button - Rot mit Goldakzent */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
    box-shadow: var(--box-shadow);
    border-color: var(--primary-color);
}

.btn-primary::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--imperial-gold);
    z-index: -1;
    transition: height var(--transition-speed) var(--transition-smooth);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
    color: var(--text-light);
}

.btn-primary:hover::after {
    height: 8px;
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--box-shadow-pressed);
    background-color: var(--primary-dark);
}

/* Secondary Button - Gold mit transparentem Hintergrund */
.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--dark-color);
    border: 2px solid var(--secondary-color);
}

.btn-secondary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--secondary-color);
    z-index: -1;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-speed) var(--transition-smooth);
}

.btn-secondary:hover {
    background-color: var(--secondary-dark);
    border-color: var(--secondary-dark);
    color: var(--dark-color);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

.btn-secondary:active {
    transform: translateY(0);
    box-shadow: var(--box-shadow-pressed);
}

/* Outline Button Varianten */
.btn-outline-primary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

.btn-outline-primary:active {
    transform: translateY(0);
    box-shadow: var(--box-shadow-pressed);
}

.btn-outline-secondary {
    background-color: transparent;
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
}

.btn-outline-secondary:hover {
    background-color: var(--secondary-color);
    color: var(--dark-color);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

.btn-outline-secondary:active {
    transform: translateY(0);
    box-shadow: var(--box-shadow-pressed);
}

/* Text Button - Kein Hintergrund */
.btn-text {
    background: transparent;
    color: var(--text-color);
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    box-shadow: none;
}

.btn-text:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background-color: transparent;
}

.btn-text:focus {
    box-shadow: none;
}

.btn-text:focus-visible {
    box-shadow: 0 0 0 2px rgba(var(--primary-color-rgb, 196, 18, 48), 0.2);
    border-radius: var(--border-radius-sm);
}

/* Accent Button - Grün */
.btn-accent {
    background-color: var(--accent-color);
    color: var(--text-light);
    border-color: var(--accent-color);
}

.btn-accent:hover {
    background-color: var(--accent-dark);
    border-color: var(--accent-dark);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

.btn-accent:active {
    transform: translateY(0);
    box-shadow: var(--box-shadow-pressed);
}

/* Button Größen */
.btn-xs {
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-xs);
    border-radius: var(--border-radius-sm);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
    border-radius: var(--border-radius-sm);
}

.btn-md {
    padding: 0.8rem 1.5rem;
    font-size: var(--font-size-base);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-lg);
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: var(--font-size-xl);
    border-radius: var(--border-radius-lg);
}

/* Button mit Icon */
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border-radius: 50%;
}

.btn-icon.btn-sm {
    width: 2rem;
    height: 2rem;
}

.btn-icon.btn-lg {
    width: 3rem;
    height: 3rem;
}

.btn-icon i,
.btn-icon svg {
    margin: 0;
}

/* Button mit Ripple-Effekt */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease-out, height 0.6s ease-out;
    z-index: -1;
}

.btn-ripple:active::before {
    width: 300%;
    height: 300%;
}

/* Button Group */
.button-group {
    display: flex;
    gap: 1rem;
}

.button-group.centered {
    justify-content: center;
}

.button-group.tight {
    gap: 0.5rem;
}

.button-group.no-gap {
    gap: 0;
}

.button-group.no-gap .btn {
    border-radius: 0;
}

.button-group.no-gap .btn:first-child {
    border-top-left-radius: var(--border-radius-md);
    border-bottom-left-radius: var(--border-radius-md);
}

.button-group.no-gap .btn:last-child {
    border-top-right-radius: var(--border-radius-md);
    border-bottom-right-radius: var(--border-radius-md);
}

/* Floating Action Button */
.btn-floating {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--text-light);
    box-shadow: var(--box-shadow-hover);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed) var(--transition-bounce);
}

.btn-floating i,
.btn-floating svg {
    font-size: 1.5rem;
    margin: 0;
}

.btn-floating:hover {
    transform: translateY(-5px) rotate(5deg);
    background-color: var(--primary-dark);
}

/* Responsive Anpassungen */
@media (max-width: 768px) {
    .button-group.responsive {
        flex-direction: column;
        width: 100%;
    }
    
    .button-group.responsive .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .btn-floating {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 3rem;
        height: 3rem;
    }
}

/* Reduzierte Bewegung für Benutzer, die dies in ihren Systemeinstellungen bevorzugen */
@media (prefers-reduced-motion: reduce) {
    .btn {
        transition: none !important;
    }
    
    .btn:hover {
        transform: none !important;
    }
    
    .btn-ripple::before {
        display: none;
    }
    
    .btn i,
    .btn svg {
        transition: none !important;
    }
    
    .btn:hover i,
    .btn:hover svg {
        transform: none !important;
    }
}