/**
 * File: utilities.css
 * Purpose: Cross-cutting utility classes (animations, print, contrast, reduced motion, focus management,
 *          loading states, visibility helpers, accessibility helpers, performance tweaks).
 * Guidelines: Keep utilities single-responsibility and low-specificity; avoid component styling here.
 */

[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translate3d(0, 40px, 0);
}

[data-aos="fade-up"].aos-animate {
    transform: translate3d(0, 0, 0);
}

[data-aos="fade-down"] {
    transform: translate3d(0, -40px, 0);
}

[data-aos="fade-down"].aos-animate {
    transform: translate3d(0, 0, 0);
}

[data-aos="fade-left"] {
    transform: translate3d(-40px, 0, 0);
}

[data-aos="fade-left"].aos-animate {
    transform: translate3d(0, 0, 0);
}

[data-aos="fade-right"] {
    transform: translate3d(40px, 0, 0);
}

[data-aos="fade-right"].aos-animate {
    transform: translate3d(0, 0, 0);
}

[data-aos="zoom-in"] {
    transform: scale(0.8);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

@media print {
    .mobile-menu-toggle,
    .main-nav,
    .btn,
    .contact-form,
    .iframe-placeholder,
    .hero-section,
    .footer-social-links {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
        font-size: 12pt !important;
        line-height: 1.5 !important;
    }
    
    .card,
    .about-section,
    .features-section,
    .benefits-section {
        background: white !important;
        border: 1px solid var(--color-border-print) !important;
        box-shadow: none !important;
        page-break-inside: avoid;
    }
    
    h1, h2, h3, h4, h5, h6 {
        color: black !important;
        page-break-after: avoid;
    }
    
    .container {
        width: 100% !important;
        max-width: none !important;
        padding: 0 !important;
        margin: 0 !important;
    }
}

@media (prefers-contrast: high) {
    .card,
    .contact-form,
    .contact-details {
        border: 3px solid var(--color-primary) !important;
    }
    
    .btn {
        border: 2px solid var(--color-text-bright-white) !important;
    }
    
    .form-group input,
    .form-group textarea {
        border: 2px solid var(--color-primary) !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .card:hover,
    .feature-item:hover,
    .benefit-item:hover,
    .btn:hover {
        transform: none !important;
    }
}

@media (prefers-color-scheme: dark) {
}

button:focus,
input:focus,
textarea:focus,
select:focus,
a:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Entfernt: Button-Fokus-Outline (jetzt zentral in base.css mit box-shadow geregelt, um weißen Rand / Form-Shift zu vermeiden) */

header .logo a:focus,
.footer-logo a:focus,
.footer-logo a:focus img,
header .logo a:focus img {
    outline: none !important;
    box-shadow: none !important;
}

p a:focus,
li a:focus,
.card a:focus,
.hero-description a:focus,
.iframe-placeholder-content a:focus,
.privacy-link a:focus {
    outline: none !important;
}

a:focus img {
    outline: none !important;
    box-shadow: none !important;
}

a,
button,
input[type="submit"],
input[type="button"] {
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

img {
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
}

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

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary);
    color: var(--color-text-bright-white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius-small);
    z-index: 1000;
    font-weight: var(--font-weight-bold);
}

.skip-link:focus {
    top: 6px;
}

.loading {
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.error {
    border-color: var(--color-error) !important;
    box-shadow: 0 0 0 3px var(--color-error-border) !important;
}

.success {
    border-color: var(--color-success) !important;
    box-shadow: 0 0 0 3px var(--color-success-border) !important;
}

.lazy-image {
    opacity: 0;
    transition: opacity 0.3s;
}

.lazy-image.loaded {
    opacity: 1;
}

.will-change-transform {
    will-change: transform;
}

.will-change-auto {
    will-change: auto;
}

.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}