/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent-color);
    color: white;
    padding: var(--space-sm) var(--space-md);
    z-index: var(--z-maximum);
    transition: top var(--transition-base);
}

.skip-link:focus {
    top: 0;
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Screen Reader Only */
.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;
}

/* Focus Styles */
:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Interactive Elements */
button,
a,
input,
textarea,
select {
    cursor: pointer;
}

button:disabled,
input:disabled,
textarea:disabled,
select:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

/* Form Validation */
input:invalid,
textarea:invalid {
    border-color: var(--error-red);
}

.input-wrapper {
    position: relative;
}

.error-message {
    color: var(--error-red);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* High Contrast Mode */
@media (forced-colors: active) {
    :root {
        --accent-color: CanvasText;
        --text-color: CanvasText;
        --bg-primary: Canvas;
    }
    
    .service-card,
    .vision-item {
        border: 1px solid CanvasText;
    }
}

/* Reduced Motion */
@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;
    }
    
    .animate-in,
    .fade-in-scroll,
    .service-card:hover,
    .shooting-star {
        animation: none !important;
        transform: none !important;
    }
}

/* Color Contrast */
.light-theme {
    --text-color: #333333; /* WCAG AAA compliant */
}

.dark-theme {
    --text-color: #F2F2F2; /* WCAG AAA compliant */
}

/* Form Labels */
label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

/* ARIA States */
[aria-invalid="true"] {
    border-color: var(--error-red);
}

[aria-busy="true"] {
    cursor: progress;
}

[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: 0.7;
}

/* Keyboard Navigation */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus,
[tabindex="0"]:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(21, 52, 209, 0.2);
}

/* Form Feedback */
.form-feedback {
    padding: var(--space-sm);
    border-radius: var(--border-radius-sm);
    margin-top: var(--space-md);
}

.form-feedback.success {
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--success-green);
}

.form-feedback.error {
    background-color: rgba(244, 67, 54, 0.1);
    color: var(--error-red);
}

/* Loading States */
.loading {
    position: relative;
}

.loading::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Input Icons */
.input-wrapper i {
    position: absolute;
    left: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-color);
    opacity: 0.7;
}

.input-wrapper input,
.input-wrapper textarea {
    padding-left: calc(var(--space-lg) + var(--space-sm));
}

/* Cookie Consent */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
    display: none;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    z-index: var(--z-modal);
}

.cookie-buttons {
    display: flex;
    gap: var(--space-sm);
}

.cookie-button {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius-sm);
    border: none;
    font-weight: 500;
    transition: var(--transition-base);
}

.cookie-button.accept {
    background: var(--accent-color);
    color: white;
}

.cookie-button.reject {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}