/* ============================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================ */

/* Focus Indicators - Visible and Beautiful */
*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 4px;
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.2);
}

/* Skip Links for Screen Readers */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-bg-main);
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 600;
    z-index: 10000;
    border-radius: 0 0 8px 0;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
}

/* Enhanced Button Focus States */
.btn:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
    box-shadow: 0 0 0 6px rgba(56, 189, 248, 0.3);
}

/* Link Focus States */
a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
    border-radius: 4px;
}

/* Form Input Focus States */
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.15);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --color-border: rgba(255, 255, 255, 0.3);
        --color-text-secondary: #b0b0b0;
    }
    
    .btn {
        border-width: 2px;
    }
}

/* Reduced Motion - Respect User Preferences */
@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;
    }
    
    .parallax-element {
        transform: none !important;
    }
}

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

.sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    padding: inherit;
    margin: inherit;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* Error States - High Visibility */
.error-message {
    color: #ff4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.error-message::before {
    content: "⚠";
    font-size: 1rem;
}

/* Success States */
.success-message {
    color: var(--color-success);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.success-message::before {
    content: "✓";
    font-size: 1rem;
}

/* Loading States - Accessible */
.loading-spinner {
    border: 3px solid rgba(56, 189, 248, 0.2);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

/* Announcements for Screen Readers */
.live-region {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* Enhanced Modal Accessibility */
.modal[role="dialog"] {
    position: fixed;
    z-index: 1000;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999;
}

/* Ensure interactive elements are keyboard accessible */
[role="button"],
[tabindex="0"] {
    cursor: pointer;
}

[role="button"]:focus-visible,
[tabindex="0"]:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Form Field Associations */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"],
.form-group select[aria-invalid="true"] {
    border-color: #ff4444;
    box-shadow: 0 0 0 3px rgba(255, 68, 68, 0.1);
}

/* Toast Notification Accessibility */
.toast[role="alert"] {
    position: fixed;
    z-index: 10000;
    min-width: 300px;
    max-width: 500px;
}

.toast[role="status"] {
    position: fixed;
    z-index: 10000;
    min-width: 300px;
    max-width: 500px;
}