/*
 * WP Flashcard Frontend — matches original v2.x visual design
 */

/* ── Set Container ───────────────────────────────────── */

.wp-flashcard-set {
    margin: 0 auto;
    max-width: 100%;
    width: 100%;
    position: relative;
    font-family: inherit;
    -webkit-font-smoothing: antialiased;
    overflow: visible;
}

/* Full-width mode — fill whatever container the shortcode is placed in */
.wp-flashcard-set.wp-flashcard-full-width {
    max-width: none !important;
    width: 100% !important;
}

/* ── Card ────────────────────────────────────────────── */

.wp-flashcard-wrapper {
    width: 100%;
    position: relative;
    overflow: visible;
}

.wp-flashcard-card-outer {
    perspective: 1200px;
    width: 100%;
    position: relative;
    font-weight: bold;
    -webkit-tap-highlight-color: transparent;
}

/* ── Card Navigation Animations ──────────────────────── */

@keyframes wpfc-drift-out-left {
    0%   { transform: perspective(800px) translateX(0) translateY(0) rotateX(0deg) rotateY(0deg) scale(1); opacity: 1; }
    100% { transform: perspective(800px) translateX(-70%) translateY(-14px) rotateX(4deg) rotateY(6deg) scale(0.95); opacity: 0; }
}

@keyframes wpfc-drift-out-right {
    0%   { transform: perspective(800px) translateX(0) translateY(0) rotateX(0deg) rotateY(0deg) scale(1); opacity: 1; }
    100% { transform: perspective(800px) translateX(70%) translateY(-14px) rotateX(4deg) rotateY(-6deg) scale(0.95); opacity: 0; }
}

@keyframes wpfc-drift-in-right {
    0%   { transform: translateX(35%) translateY(-6px) scale(0.97); opacity: 0; }
    100% { transform: translateX(0) translateY(0) scale(1); opacity: 1; }
}

@keyframes wpfc-drift-in-left {
    0%   { transform: translateX(-35%) translateY(-6px) scale(0.97); opacity: 0; }
    100% { transform: translateX(0) translateY(0) scale(1); opacity: 1; }
}

.wp-flashcard-slide-out-left {
    animation: wpfc-drift-out-left 0.1s ease-in forwards;
    transform-origin: center top;
}

.wp-flashcard-slide-out-right {
    animation: wpfc-drift-out-right 0.1s ease-in forwards;
    transform-origin: center top;
}

.wp-flashcard-slide-in-right {
    animation: wpfc-drift-in-right 0.08s ease-out forwards;
}

.wp-flashcard-slide-in-left {
    animation: wpfc-drift-in-left 0.08s ease-out forwards;
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .wp-flashcard-slide-out-left,
    .wp-flashcard-slide-out-right,
    .wp-flashcard-slide-in-right,
    .wp-flashcard-slide-in-left {
        animation: none;
    }
}

.wp-flashcard-card-inner {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.25s ease;
}

.wp-flashcard-card-inner.is-flipped {
    transform: rotateX(180deg);
}

.wp-flashcard-face {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    background-color: #fff;
    border-radius: 5px;
    overflow: hidden;
    padding: 45px 30px;
    box-shadow: 0 0.25rem 1rem rgba(0, 0, 0, .15);
    isolation: isolate;
    text-align: center;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    box-sizing: border-box;
}

.wp-flashcard-back {
    transform: rotateX(180deg);
}

/* ── Card Content ────────────────────────────────────── */

.wp-flashcard-content {
    margin: 0;
    font-size: 30px;
    -webkit-font-smoothing: antialiased;
    -webkit-hyphens: manual;
    -moz-hyphens: manual;
    -ms-hyphens: manual;
    hyphens: manual;
    word-break: break-word;
    width: 100%;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

/* Inner centering wrapper — centers short content, scrolls long content */
.wp-flashcard-content-inner {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4px 0;
}

/* Scrollbar styling */
.wp-flashcard-content::-webkit-scrollbar {
    width: 6px;
}

.wp-flashcard-content::-webkit-scrollbar-track {
    background: transparent;
}

.wp-flashcard-content::-webkit-scrollbar-thumb {
    background: #c2c2c2;
    border-radius: 3px;
}

.wp-flashcard-content::-webkit-scrollbar-thumb:hover {
    background: #919191;
}

.wp-flashcard-content img {
    width: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* ── Image Container ─────────────────────────────────── */

.wp-flashcard-image-container {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    overflow: hidden;
}

.wp-flashcard-image-container img {
    width: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

/* ── Mixed Content (text + media on same side) ───────── */

.wp-flashcard-mixed {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 8px 0;
    align-items: center;
}

.wp-flashcard-mixed-part {
    width: 100%;
    flex-shrink: 0;
}

.wp-flashcard-mixed-text {
    line-height: 1.4;
    padding: 0 20px;
}

.wp-flashcard-mixed-media {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 4px;
}

.wp-flashcard-mixed-media audio {
    width: 100%;
    max-width: 400px;
}

.wp-flashcard-mixed-media img {
    max-width: 100%;
    object-fit: contain;
}

.wp-flashcard-mixed-media video {
    max-width: 100%;
}

.wp-flashcard-media {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.wp-flashcard-media audio {
    width: 100%;
}

.wp-flashcard-media {
    backface-visibility: hidden;
    min-height: 100px;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.wp-flashcard-video-container {
    height: 100%;
    background-color: #000;
}

.wp-flashcard-video-container video,
.wp-flashcard-video-container iframe {
    width: 100% !important;
    height: 100% !important;
}

/* 16:9 aspect ratio for embeds (YouTube, Vimeo, etc) */
.wp-flashcard-video-16x9 {
    position: relative;
    padding-bottom: 56.25%; /* 9/16 = 0.5625 */
    height: 0;
    overflow: hidden;
}

.wp-flashcard-video-16x9 iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
}

/* ── Star Button ─────────────────────────────────────── */

.wp-flashcard-star {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    text-align: center;
    background-color: #3ccfcf;
    color: #fff;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    transition: .15s all ease;
    box-shadow: 0 0 0 1px #f2f2f2 !important;
    cursor: pointer;
    border: 0;
    outline: 0;
    padding: 0;
    line-height: 1;
}

.wp-flashcard-star svg {
    width: 16px;
    height: 16px;
    display: inline-block;
}

.wp-flashcard-star:focus {
    outline: 0;
    border: 0;
}

.wp-flashcard-star.is-starred {
    color: #ffc107;
}

@supports not (-webkit-touch-callout: none) {
    .wp-flashcard-star:hover {
        color: #ffc107;
    }
}

@media (min-width: 768px) {
    .wp-flashcard-star:not(.is-starred):hover {
        color: #ffc107 !important;
    }
}

/* ── Navigation ──────────────────────────────────────── */

.wp-flashcard-nav {
    text-align: center;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    margin-top: 10px;
}

.wp-flashcard-nav-btn {
    background: 0 0;
    color: inherit;
    border: none;
    padding: 0 !important;
    font: inherit;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    display: flex !important;
    flex-wrap: wrap;
    align-items: center;
    outline: none;
    text-decoration: none;
}

.wp-flashcard-nav-btn svg {
    width: 20px;
    height: 20px;
    display: inline-block;
    margin: 10px;
}

.wp-flashcard-nav-btn:hover {
    background: transparent;
    color: #000;
    text-decoration: none;
    outline: none;
}

.wp-flashcard-nav-btn:hover svg {
    color: #ffcd1f;
    fill: #ffcd1f;
}

.wp-flashcard-nav-btn:disabled {
    pointer-events: none;
    opacity: .3;
}

.wp-flashcard-counter {
    display: inline-block;
    margin-right: 60px;
    margin-left: 60px;
    font-size: 12px;
}

/* ── Navigation + Toolbar Container ──────────────────── */

.wp-flashcard-nav-container {
    position: relative;
    margin-top: 20px;
}

/* ── Toolbar (Shuffle, Switch) ───────────────────────── */

.wp-flashcard-toolbar {
    position: absolute;
    right: 20px;
    display: flex;
    flex-wrap: wrap;
    z-index: 1;
    top: 50%;
    transform: translateY(-50%);
    bottom: auto;
    align-items: center;
}

.wp-flashcard-shuffle-wrap {
    margin-right: 10px;
}

.wp-flashcard-tool-btn {
    padding: 10px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    display: block;
    line-height: normal;
    height: 35px;
    width: 35px;
    border: 0;
    outline: 0;
    box-shadow: 0 0 0 1px #f2f2f2 !important;
    transition: background-color .15s ease;
}

.wp-flashcard-tool-btn > span {
    line-height: 15px;
    display: block;
}

.wp-flashcard-tool-btn svg {
    width: 15px;
    height: 15px;
    fill: #000;
    display: block;
}

.wp-flashcard-tool-btn:hover,
.wp-flashcard-tool-btn.is-active {
    background-color: #ffcd1f;
}

@supports not (-webkit-touch-callout: none) {
    .wp-flashcard-tool-btn:hover {
        background-color: #ffcd1f;
    }
}

/* ── Tooltips ────────────────────────────────────────── */

.wp-flashcard-tooltip {
    color: #fff;
    text-align: center;
    margin: 10px 0 0;
    width: 125px;
    padding: 5px;
    font-weight: 600;
    font-size: 10px;
    line-height: 1.333;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: all .3s ease;
    min-height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #4257b2;
    pointer-events: none;
    z-index: 100;
}

.wp-flashcard-tooltip::after {
    content: "";
    position: absolute;
    transform: rotate(45deg) translateX(-50%);
    height: .75rem;
    width: .75rem;
    z-index: 100;
    top: -1px;
    left: 50%;
    background: #4257b2;
}

/* Star tooltip — positioned to the left of the star */
.wp-flashcard-star-wrap .wp-flashcard-tooltip {
    margin: 0;
    left: auto;
    transform: none;
    right: 42px;
    top: -2px;
}

.wp-flashcard-star-wrap .wp-flashcard-tooltip::after {
    transform: rotate(45deg);
    top: 13px;
    left: auto;
    right: -4px;
}

@supports not (-webkit-touch-callout: none) {
    .wp-flashcard-tool-btn:hover + .wp-flashcard-tooltip,
    .wp-flashcard-star:hover + .wp-flashcard-tooltip {
        opacity: 1;
    }
}

/* ── Mode Indicator (starred count) ──────────────────── */

.wp-flashcard-mode {
    font-size: 13px;
    color: #ffc107;
    font-weight: 600;
}

/* ── Completion / Result Screen ───────────────────────── */

.wp-flashcard-result-content {
    border-radius: 5px;
    padding: 30px;
    width: 100%;
    min-height: 100%;
    text-align: center;
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    box-sizing: border-box;
}

.wp-flashcard-result-content > * {
    max-width: 100%;
    flex-shrink: 0;
}

.wp-flashcard-result-content strong {
    font-size: 25px;
    display: block;
}

.wp-flashcard-result-content > .wp-flashcard-result-text {
    font-size: 20px;
    display: block;
    margin-bottom: 10px;
}

.wp-flashcard-btn {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border: none;
    border-radius: .25rem;
    cursor: pointer;
    font-size: 16px;
    max-width: 100%;
    transition: all .12s cubic-bezier(.47, 0, .745, .715);
    width: 100%;
    background-color: #3ccfcf;
    color: #fff !important;
    padding: 16px 30px;
    font-weight: 700;
    letter-spacing: .0625rem;
    line-height: 1.222;
    display: block;
    text-decoration: none !important;
    margin: 5px 0;
}

.wp-flashcard-btn:hover,
.wp-flashcard-btn:focus,
.wp-flashcard-btn:active,
.wp-flashcard-btn:visited {
    color: #fff !important;
    text-decoration: none !important;
    background-color: #28a7a7;
}

.wp-flashcard-btn.wp-flashcard-btn-start-over {
    margin-top: 20px;
}

/* ── Hint ────────────────────────────────────────────── */

.wp-flashcard-hint {
    text-align: center;
    font-size: 11px;
    color: #bbb;
    margin-top: 4px;
}

/* ── Empty State ─────────────────────────────────────── */

.wp-flashcard-empty {
    text-align: center;
    color: #999;
    padding: 40px;
    font-style: italic;
}

/* ── Responsive ──────────────────────────────────────── */

@media (max-width: 767px) {
    .wp-flashcard-set {
        margin: 0 auto 40px !important;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    .wp-flashcard-card-outer {
        padding: 0;
    }

    .wp-flashcard-card-inner {
        min-height: 300px;
    }

    .wp-flashcard-face {
        padding: 30px 20px;
        border-radius: 0;
    }

    /* Bigger star tap target on mobile */
    .wp-flashcard-star {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
    }

    .wp-flashcard-star svg {
        width: 20px;
        height: 20px;
    }

    /* Force all videos to full width on mobile */
    .wp-flashcard-video-container {
        width: 100% !important;
    }

    /* Mixed content adjustments */
    .wp-flashcard-mixed {
        gap: 12px;
        padding: 6px 0;
    }

    .wp-flashcard-mixed-text {
        padding: 0 12px;
    }

    .wp-flashcard-mixed-media audio {
        max-width: 100%;
    }

    /* Result / completion card */
    .wp-flashcard-result-content {
        padding: 20px 16px;
    }

    .wp-flashcard-result-content strong {
        font-size: 22px;
    }

    .wp-flashcard-result-content > .wp-flashcard-result-text {
        font-size: 17px;
    }

    .wp-flashcard-btn {
        padding: 14px 24px;
        font-size: 15px;
    }

    /* Navigation */
    .wp-flashcard-nav {
        margin-top: 8px;
    }

    .wp-flashcard-counter {
        margin-right: 24px;
        margin-left: 24px;
    }

    .wp-flashcard-nav-container {
        margin-top: 12px;
    }

    /* Toolbar always below nav on mobile */
    .wp-flashcard-toolbar {
        position: static;
        transform: none;
        justify-content: center;
        margin-top: 14px;
    }

    .wp-flashcard-hint {
        display: none;
    }

    /* Star button */
    .wp-flashcard-star-wrap {
        top: 10px !important;
        right: 10px !important;
    }
}

/* Extra small screens (phones in portrait) */
@media (max-width: 400px) {
    .wp-flashcard-card-outer {
        padding: 0;
    }

    .wp-flashcard-face {
        padding: 24px 14px;
    }

    .wp-flashcard-counter {
        margin-right: 16px;
        margin-left: 16px;
    }
}

/* ── Narrow containers ───────────────────────────────── */

.wp-flashcard-set.is-narrow .wp-flashcard-toolbar {
    position: static;
    transform: none;
    justify-content: center;
    margin-top: 18px;
}

/* ── Theme Compatibility (Divi, Pro/X, Elementor, Avada, etc.) ── */

/* Prevent parent containers from clipping card animations */
.et_pb_section .wp-flashcard-set,
.et_pb_row .wp-flashcard-set,
.et_pb_column .wp-flashcard-set,
.elementor-section .wp-flashcard-set,
.elementor-column .wp-flashcard-set,
.fl-col .wp-flashcard-set,
.x-section .wp-flashcard-set,
.x-row .wp-flashcard-set,
.x-row-inner .wp-flashcard-set,
.x-column .wp-flashcard-set,
.x-col .wp-flashcard-set,
.x-container .wp-flashcard-set,
.x-text .wp-flashcard-set,
.x-raw-content .wp-flashcard-set,
[class*="e"][class*="x-"] .wp-flashcard-set,
.fusion-fullwidth .wp-flashcard-set,
.fusion-column-wrapper .wp-flashcard-set {
    overflow: visible;
}

/* Reset aggressive button/link styles from themes */
.wp-flashcard-set a,
.wp-flashcard-set a:hover,
.wp-flashcard-set a:focus,
.wp-flashcard-set a:visited {
    text-decoration: none;
    box-shadow: none;
    outline: none;
}

.wp-flashcard-set button,
.wp-flashcard-set button:hover,
.wp-flashcard-set button:focus {
    box-shadow: none;
    outline: none;
    letter-spacing: normal;
    text-transform: none;
    transition: none;
}

/* Theme button reset — prevent styles leaking in */
.wp-flashcard-set .wp-flashcard-btn,
.wp-flashcard-set .wp-flashcard-btn:hover {
    padding: 10px 24px !important;
    border: none !important;
    background: #3ccfcf !important;
    color: #fff !important;
    border-radius: 5px !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    line-height: 1.4 !important;
    letter-spacing: normal !important;
    text-transform: none !important;
    text-decoration: none !important;
    cursor: pointer;
    display: inline-block !important;
    transition: background 0.15s ease !important;
}

.wp-flashcard-set .wp-flashcard-btn:hover {
    background: #28a7a7 !important;
}

/* Theme pseudo-elements on buttons */
.wp-flashcard-set .wp-flashcard-btn::after,
.wp-flashcard-set .wp-flashcard-btn::before,
.wp-flashcard-set .wp-flashcard-nav-btn::after,
.wp-flashcard-set .wp-flashcard-nav-btn::before {
    display: none !important;
    content: none !important;
}

/* Reset nav buttons from theme interference */
.wp-flashcard-set .wp-flashcard-nav-btn,
.wp-flashcard-set .wp-flashcard-nav-btn:hover,
.wp-flashcard-set .wp-flashcard-nav-btn:focus {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    margin: 0;
    box-shadow: none !important;
    letter-spacing: normal !important;
    text-transform: none !important;
    transition: none !important;
    line-height: normal !important;
}

/* Prevent themes from adding transitions to card elements */
.wp-flashcard-set .wp-flashcard-card-outer,
.wp-flashcard-set .wp-flashcard-face,
.elementor .wp-flashcard-card-outer,
.elementor .wp-flashcard-face,
.elementor-element .wp-flashcard-card-outer,
.elementor-element .wp-flashcard-face {
    -webkit-transition: none !important;
    transition: none !important;
    -webkit-tap-highlight-color: transparent !important;
}

/* Card inner needs its own flip transition preserved — !important to override theme globals */
.wp-flashcard-set .wp-flashcard-card-inner,
.elementor .wp-flashcard-card-inner,
.elementor-element .wp-flashcard-card-inner {
    transition: transform 0.25s ease !important;
    transform-style: preserve-3d !important;
}

/*
 * Elementor fix: overflow:hidden on parent containers forces
 * transform-style:preserve-3d to flatten, breaking the 3D flip.
 * These must be visible for the flip to work.
 */
.elementor-widget:has(.wp-flashcard-set),
.elementor-widget-container:has(.wp-flashcard-set),
.elementor-element:has(.wp-flashcard-set),
.elementor-widget-text-editor:has(.wp-flashcard-set),
.elementor-widget-shortcode:has(.wp-flashcard-set),
.elementor-widget-html:has(.wp-flashcard-set) {
    overflow: visible !important;
    transform-style: preserve-3d;
}

/* Prevent Elementor hover/active states from triggering on touch */
.elementor-widget:has(.wp-flashcard-set):hover,
.elementor-widget:has(.wp-flashcard-set):active,
.elementor-widget-container:has(.wp-flashcard-set):hover,
.elementor-widget-container:has(.wp-flashcard-set):active,
.elementor-element:has(.wp-flashcard-set):hover,
.elementor-element:has(.wp-flashcard-set):active {
    -webkit-transition: none !important;
    transition: none !important;
    -webkit-transform: none !important;
    transform: none !important;
}

/* Kill Elementor motion effects / entrance animations on flashcard containers */
.elementor-widget:has(.wp-flashcard-set) > .elementor-motion-effects-container,
.elementor-widget:has(.wp-flashcard-set)[class*="animated"] {
    animation: none !important;
    -webkit-animation: none !important;
}

/* Line-height protection — prevent theme compression */
.wp-flashcard-set .wp-flashcard-face,
.wp-flashcard-set .wp-flashcard-content,
.wp-flashcard-set .wp-flashcard-content-inner {
    line-height: 1.5 !important;
}

/* Reset typography leaks */
.wp-flashcard-set .wp-flashcard-counter {
    font-family: inherit;
    letter-spacing: normal;
    text-transform: none;
}

.wp-flashcard-set .wp-flashcard-result-content {
    letter-spacing: normal;
    text-transform: none;
}

.wp-flashcard-set .wp-flashcard-hint {
    letter-spacing: normal;
    text-transform: none;
}

/* Divi overflow fix */
.et_pb_text_inner > .wp-flashcard-set,
.et_pb_module_inner > .wp-flashcard-set,
.et_pb_code_inner > .wp-flashcard-set {
    overflow: visible;
}

.et_pb_text_inner,
.et_pb_code_inner {
    overflow: visible !important;
}

/* Pro/X theme (Themeco) — overflow and button fixes */
.x-text .wp-flashcard-set,
.x-raw-content .wp-flashcard-set {
    overflow: visible;
}

.x-section:has(.wp-flashcard-set),
.x-row:has(.wp-flashcard-set),
.x-row-inner:has(.wp-flashcard-set),
.x-column:has(.wp-flashcard-set),
.x-col:has(.wp-flashcard-set),
.x-container:has(.wp-flashcard-set) {
    overflow: visible;
}

/* Pro/X button class reset */
.wp-flashcard-set .wp-flashcard-btn.x-btn,
.wp-flashcard-set a.x-btn,
.wp-flashcard-set .wp-flashcard-nav-btn.x-btn {
    padding: 10px 24px !important;
    border: none !important;
    letter-spacing: normal !important;
    text-transform: none !important;
}

/* Avada (Fusion Builder) — overflow fixes */
.fusion-fullwidth:has(.wp-flashcard-set),
.fusion-builder-row:has(.wp-flashcard-set),
.fusion-column-wrapper:has(.wp-flashcard-set) {
    overflow: visible;
}