/**
 * Quizquarks Shared UI Layer
 * Dialog, Toast, Confirm, Focus-Ring, A11y-Utilities.
 * Wird sowohl im Admin als auch im Frontend geladen.
 */

/* ============================================================
   Design Tokens (CSS Custom Properties)
   ============================================================ */
:root {
    --qq-color-primary: #FF6B00;
    --qq-color-primary-hover: #E96200;
    --qq-color-primary-soft: #FFEFEB;
    --qq-color-accent: #2271b1;
    --qq-color-accent-hover: #135e96;
    --qq-color-success: #00a32a;
    --qq-color-success-soft: #edfaef;
    --qq-color-danger: #d63638;
    --qq-color-danger-hover: #b32d2e;
    --qq-color-danger-soft: #fcf0f1;
    --qq-color-warning: #dba617;
    --qq-color-warning-soft: #fcf9e8;
    --qq-color-info: #72aee6;
    --qq-color-info-soft: #f0f6fc;

    --qq-color-text: #1e1e1e;
    --qq-color-text-muted: #50575e;
    --qq-color-text-subtle: #787c82;
    --qq-color-surface: #fff;
    --qq-color-surface-muted: #f6f7f7;
    --qq-color-surface-subtle: #f0f0f1;
    --qq-color-border: #c3c4c7;
    --qq-color-border-subtle: #dcdcde;

    --qq-radius-sm: 3px;
    --qq-radius-md: 6px;
    --qq-radius-lg: 10px;
    --qq-radius-xl: 14px;

    --qq-shadow-xs: 0 1px 2px rgb(0 0 0 / 0.05);
    --qq-shadow-sm: 0 1px 3px rgb(0 0 0 / 0.08), 0 1px 2px rgb(0 0 0 / 0.05);
    --qq-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --qq-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.10), 0 4px 6px -4px rgb(0 0 0 / 0.08);
    --qq-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.12), 0 8px 10px -6px rgb(0 0 0 / 0.08);

    --qq-focus-ring-width: 2px;
    --qq-focus-ring-offset: 2px;
    --qq-focus-ring-color: #2271b1;

    --qq-space-1: 4px;
    --qq-space-2: 8px;
    --qq-space-3: 12px;
    --qq-space-4: 16px;
    --qq-space-5: 20px;
    --qq-space-6: 24px;
    --qq-space-8: 32px;

    --qq-transition-fast: 120ms cubic-bezier(0.16, 1, 0.3, 1);
    --qq-transition-base: 180ms cubic-bezier(0.16, 1, 0.3, 1);

    --qq-z-sticky: 10;
    --qq-z-dialog: 100000;
    --qq-z-toast: 100100;
}

/* ============================================================
   Screenreader-only (visuell versteckt, SR liest)
   ============================================================ */
.qq-sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.qq-sr-only-focusable:not(:focus):not(:active) {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* ============================================================
   Focus-Ring (nur :focus-visible, nicht bei Mausklick)
   ============================================================ */
.qq-focus-ring:focus-visible,
.qq-admin .qq-tabs [role="tab"]:focus-visible,
.qq-admin .qq-dialog__close:focus-visible,
.qq-admin .qq-drag-handle:focus-visible,
.qq-container button:focus-visible,
.qq-container [role="radio"]:focus-visible,
.qq-container a:focus-visible,
.qq-container input:focus-visible,
.qq-container select:focus-visible,
.qq-container textarea:focus-visible {
    outline: var(--qq-focus-ring-width) solid var(--qq-focus-ring-color);
    outline-offset: var(--qq-focus-ring-offset);
    border-radius: var(--qq-radius-sm);
}

/* ============================================================
   Dialog-Komponente
   ============================================================ */
.qq-dialog-root {
    position: fixed;
    inset: 0;
    z-index: var(--qq-z-dialog);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--qq-space-4);
}

.qq-dialog-root[hidden] {
    display: none;
}

.qq-dialog__backdrop {
    position: absolute;
    inset: 0;
    background: rgb(0 0 0 / 0.55);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    animation: qq-fade-in var(--qq-transition-base);
}

.qq-dialog {
    position: relative;
    background: var(--qq-color-surface);
    border-radius: var(--qq-radius-lg);
    box-shadow: var(--qq-shadow-xl);
    max-width: 720px;
    width: 100%;
    max-height: min(90vh, 900px);
    display: flex;
    flex-direction: column;
    animation: qq-dialog-in var(--qq-transition-base);
    overflow: hidden;
}

.qq-dialog--lg { max-width: 960px; }
.qq-dialog--sm { max-width: 460px; }

.qq-dialog__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--qq-space-3);
    padding: var(--qq-space-4) var(--qq-space-5);
    border-bottom: 1px solid var(--qq-color-border-subtle);
}

.qq-dialog__title {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.35;
    color: var(--qq-color-text);
}

.qq-dialog__close {
    appearance: none;
    background: transparent;
    border: 1px solid transparent;
    width: 32px;
    height: 32px;
    border-radius: var(--qq-radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--qq-color-text-muted);
    cursor: pointer;
    transition: background var(--qq-transition-fast), color var(--qq-transition-fast);
    padding: 0;
}

.qq-dialog__close:hover {
    background: var(--qq-color-surface-subtle);
    color: var(--qq-color-text);
}

.qq-dialog__close .dashicons {
    width: 20px;
    height: 20px;
    font-size: 20px;
    line-height: 1;
}

.qq-dialog__body {
    padding: var(--qq-space-5);
    overflow-y: auto;
    flex: 1 1 auto;
}

.qq-dialog__footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--qq-space-2);
    padding: var(--qq-space-4) var(--qq-space-5);
    border-top: 1px solid var(--qq-color-border-subtle);
    background: var(--qq-color-surface-muted);
}

.qq-dialog__footer--between {
    justify-content: space-between;
}

/* ============================================================
   Confirm-Dialog (gleiches Panel, kompakter)
   ============================================================ */
.qq-confirm__message {
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.55;
    color: var(--qq-color-text);
}

.qq-confirm--danger .qq-dialog__title {
    color: var(--qq-color-danger);
}

/* ============================================================
   Toast-Container + Toast
   ============================================================ */
.qq-toast-container {
    position: fixed;
    top: 40px;
    right: 20px;
    z-index: var(--qq-z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--qq-space-2);
    max-width: 420px;
    width: calc(100% - 40px);
    pointer-events: none;
}

@media (min-width: 783px) {
    .qq-toast-container {
        top: 52px;
        right: 24px;
    }
}

.qq-toast {
    pointer-events: auto;
    display: flex;
    align-items: flex-start;
    gap: var(--qq-space-3);
    padding: var(--qq-space-3) var(--qq-space-4);
    background: var(--qq-color-surface);
    border: 1px solid var(--qq-color-border-subtle);
    border-left: 4px solid var(--qq-color-info);
    border-radius: var(--qq-radius-md);
    box-shadow: var(--qq-shadow-lg);
    color: var(--qq-color-text);
    font-size: 0.9375rem;
    line-height: 1.5;
    animation: qq-toast-in var(--qq-transition-base);
}

.qq-toast[data-leaving="true"] {
    animation: qq-toast-out var(--qq-transition-base) forwards;
}

.qq-toast--success { border-left-color: var(--qq-color-success); }
.qq-toast--error   { border-left-color: var(--qq-color-danger); }
.qq-toast--warning { border-left-color: var(--qq-color-warning); }
.qq-toast--info    { border-left-color: var(--qq-color-info); }

.qq-toast__icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.qq-toast--success .qq-toast__icon { color: var(--qq-color-success); }
.qq-toast--error   .qq-toast__icon { color: var(--qq-color-danger); }
.qq-toast--warning .qq-toast__icon { color: var(--qq-color-warning); }
.qq-toast--info    .qq-toast__icon { color: var(--qq-color-info); }

.qq-toast__body {
    flex: 1 1 auto;
    min-width: 0;
}

.qq-toast__message {
    margin: 0;
    word-wrap: break-word;
}

.qq-toast__action {
    appearance: none;
    background: transparent;
    border: none;
    color: var(--qq-color-accent);
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    margin-top: var(--qq-space-1);
    font-size: 0.875rem;
}

.qq-toast__action:hover {
    color: var(--qq-color-accent-hover);
    text-decoration: underline;
}

.qq-toast__close {
    appearance: none;
    background: transparent;
    border: none;
    color: var(--qq-color-text-subtle);
    cursor: pointer;
    padding: 2px;
    line-height: 1;
    flex-shrink: 0;
    border-radius: var(--qq-radius-sm);
}

.qq-toast__close:hover {
    color: var(--qq-color-text);
    background: var(--qq-color-surface-subtle);
}

.qq-toast__close svg {
    width: 16px;
    height: 16px;
    display: block;
}

/* ============================================================
   Utility: hidden (für JS-Toggle; semantischer als inline style)
   ============================================================ */
.qq-hidden {
    display: none !important;
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes qq-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes qq-dialog-in {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes qq-toast-in {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes qq-toast-out {
    from { opacity: 1; transform: translateX(0); }
    to   { opacity: 0; transform: translateX(20px); }
}

/* ============================================================
   prefers-reduced-motion Respect
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================================
   High contrast mode
   ============================================================ */
@media (forced-colors: active) {
    .qq-dialog {
        border: 1px solid CanvasText;
    }
    .qq-toast {
        border: 1px solid CanvasText;
    }
    .qq-focus-ring:focus-visible {
        outline: 2px solid Highlight;
    }
}

/* ============================================================
   Frontend-Quiz spezifisch (Radiogroup-Answers, Inline-Error, Chart-Table)
   ============================================================ */

/* Answer-Labels (Label umschliesst hidden Radio) */
.qq-answers { margin: 0; padding: 0; border: 0; }

.qq-answer {
    position: relative;
    min-height: 56px;
    user-select: none;
    outline: none;
}

.qq-answer-marker {
    width: 20px;
    height: 20px;
    border: 2px solid #9ca3af;
    border-radius: 9999px;
    background: #fff;
    flex-shrink: 0;
    display: inline-block;
    position: relative;
    transition: border-color var(--qq-transition-fast), background var(--qq-transition-fast);
}

.qq-answer-marker::after {
    content: '';
    position: absolute;
    inset: 4px;
    border-radius: 9999px;
    background: var(--qq-color-accent);
    transform: scale(0);
    transition: transform var(--qq-transition-fast);
}

/* :has() — moderne Browser: Label-Styling basierend auf checked Radio */
.qq-answer:has(.qq-answer-input:checked) {
    background-color: #dbeafe !important;
    border-color: var(--qq-color-accent) !important;
    box-shadow: 0 0 0 2px var(--qq-color-accent);
}

.qq-answer:has(.qq-answer-input:checked) .qq-answer-marker {
    border-color: var(--qq-color-accent);
    background: #fff;
}

.qq-answer:has(.qq-answer-input:checked) .qq-answer-marker::after {
    transform: scale(1);
}

/* Focus-Ring auf Label wenn Radio darin Fokus hat */
.qq-answer:has(.qq-answer-input:focus-visible) {
    outline: 2px solid var(--qq-color-accent);
    outline-offset: 2px;
}

/* Hover (nur wenn nicht locked) */
.qq-answer:not(.qq-answer--locked):hover .qq-answer-marker {
    border-color: var(--qq-color-accent);
}

/* Locked state (nach Auswahl, warten auf AJAX) */
.qq-answer--locked {
    cursor: not-allowed;
    opacity: 0.6;
    pointer-events: none;
}

.qq-answer:has(.qq-answer-input:checked).qq-answer--locked {
    opacity: 1;
}

/* Fallback fuer Browser ohne :has() — Klasse per JS auf das Label legen */
.qq-answer.qq-answer--selected {
    background-color: #dbeafe !important;
    border-color: var(--qq-color-accent) !important;
    box-shadow: 0 0 0 2px var(--qq-color-accent);
}

.qq-answer.qq-answer--selected .qq-answer-marker {
    border-color: var(--qq-color-accent);
}

.qq-answer.qq-answer--selected .qq-answer-marker::after {
    transform: scale(1);
}

/* Inline-Error-Card */
.qq-inline-error {
    margin-top: 8px;
}

.qq-field-error {
    display: block;
}

/* Chart-Data-Table (Screenreader-Fallback) */
.qq-chart-data table {
    width: 100%;
    border-collapse: collapse;
}

.qq-chart-data caption {
    font-weight: 600;
    margin-bottom: 4px;
}

.qq-chart-data th,
.qq-chart-data td {
    padding: 4px 8px;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
}

/* Progress: subtle pulse wenn Aenderung (nicht bei reduced-motion) */
.qq-progress-inner {
    transition: width 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Zurueck-zur-vorigen-Frage Link (unauffaellig, textlink-ish, linksbuendig) */
.qq-question-nav {
    margin-top: 0.75rem;
    text-align: left;
}

.qq-back-button {
    appearance: none;
    background: transparent;
    border: none;
    color: #6b7280;
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 2px 0;
    margin: 0;
    cursor: pointer;
    text-decoration: none;
    transition: color var(--qq-transition-fast);
}

.qq-back-button:hover {
    color: var(--qq-color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.qq-back-button:focus-visible {
    outline: 2px solid var(--qq-focus-ring-color);
    outline-offset: 3px;
    border-radius: 2px;
}

/* Ergebnis: sanftes Fade-up, damit Konfetti & Inhalt gemeinsam landen */
.qq-result-container > .qq-result,
.qq-result-container > * {
    animation: qq-result-in 520ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.qq-result-container > :nth-child(2) { animation-delay: 80ms; }
.qq-result-container > :nth-child(3) { animation-delay: 160ms; }

@keyframes qq-result-in {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Ergebnis-Bilder: proportional einpassen, nicht zuschneiden, Deckelung nach oben. */
.qq-result-image {
    margin: 0 auto 1rem;
    text-align: center;
}

.qq-result-image__img {
    display: inline-block;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 420px;
    object-fit: contain;
    background: transparent;
}

@media (max-width: 640px) {
    .qq-result-image__img {
        max-height: 280px;
    }
}

/* Stats-Notice (sichtbarer Hinweis wenn Statistik leer ist) */
.qq-stats-notice {
    padding: 16px 20px;
    background: #fef9e7;
    border: 1px solid #f0d77c;
    border-left: 4px solid #dba617;
    border-radius: var(--qq-radius-md);
    color: #5a4a10;
    max-width: 480px;
    margin: 0 auto;
}

.qq-stats-notice p {
    margin: 0;
    font-weight: 500;
    line-height: 1.5;
}

/* Skip-Link (erscheint nur bei Fokus) */
.qq-skip-link {
    position: absolute;
    top: -40px;
    left: 8px;
    padding: 8px 12px;
    background: var(--qq-color-text);
    color: #fff;
    text-decoration: none;
    border-radius: var(--qq-radius-sm);
    z-index: 200;
}

.qq-skip-link:focus {
    top: 8px;
}