:root {
    /* Rozměrové tokeny (používá hlavně nový seznam slov) */
    --r-sm: 8px;
    --r-md: 10px;
    --r-lg: 14px;
}


/* ==========================================================================
   1) KARTA CVIČENÍ (hlavička stránky)
   ========================================================================== */

.data-card h2 {
    color: var(--blue);
    font-size: 1.5em;
}

.data-card p { font-size: 1em; }

.nazev_lekce {
    background-color: var(--overlay);
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    display: inline-block;
    margin: 10px;
}

.zakladni_informace {
    min-width: 270px;
    width: 40%;
}

.tlacitka_informace {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
    align-items: flex-start;
}

@keyframes waveEffect {
    0%   { background-position: 100% 0; }
    50%  { background-position: 0 0; }
    100% { background-position: 100% 0; }
}


/* ==========================================================================
   2) NAČÍTÁNÍ
   ========================================================================== */

#loading {
    text-align: center;
    margin: 20px auto;
    font-size: 18px;
    display: block;
}

.loader {
    border: 5px solid var(--glass-hover);
    border-top: 5px solid var(--blue);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-bottom: 10px;
}

@keyframes spin {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#dataContainer { display: none; }

/* ==========================================================================
   5) SEZNAM SLOV – ZÁKLAD (starší rozložení; nový #content ho přebíjí níže)
   ========================================================================== */

.lessons-container {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    justify-content: flex-start;
}

.lesson {
    background-image: linear-gradient(120deg, var(--card-a), var(--card-b));
    background-size: 200% 100%;
    border-radius: 6px;
    padding: 12px;
    width: 25%;
    box-shadow: var(--shadow-sm);
    color: var(--text);
    margin: 7px;
    width: 400px;
}

.lesson .h20 {
    font-size: 1.3em;
    margin: 0;
}

.lesson .btn1:hover { background-color: var(--blue); }

.word-list {
    list-style: none;
    padding: 0;
    font-size: 0.9em;
}

.word-list li {
    background-color: var(--surface-word);
    padding: 6px;
    margin: 4px 0;
    border-radius: 4px;
}

.word-item { position: relative; }

.word {
    font-weight: bold;
    color: var(--text);
}

.translation1 { color: var(--text-muted); }

/* Progress */
.progressOpakovaniBox {
    display: flex;
    gap: 5px;
}

.progress-container1 {
    width: 100%;
    height: 6px;
    border-radius: 4px;
    background-color: var(--track);
    margin-top: 6px;
    position: relative;
    overflow: hidden;
    display: block;
}

.progress-bar1 {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease-in-out, background-color 0.3s;
    position: relative;
    overflow: hidden;
}

.review-time-badge {
    padding: 0 5px;
    font-size: 10px;
    white-space: nowrap;
    color: var(--purple);
}

.review-now { color: var(--danger); }

/* Pruhy u opakování */
.progress-bar1.progressbar_opakovani::after,
.progress-bar1.progressbar_opakovani_ban::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 45%;
    -webkit-mask-image: linear-gradient(to left, black 0%, black 30%, transparent 100%);
    mask-image: linear-gradient(to left, black 0%, black 30%, transparent 100%);
    pointer-events: none;
}

.progress-bar1.progressbar_opakovani::after {
    background-image: repeating-linear-gradient(
        45deg,
        var(--stripe-review) 0px,
        var(--stripe-review) 6px,
        transparent 6px,
        transparent 13px
    );
}

.progress-bar1.progressbar_opakovani_ban::after {
    background-image: repeating-linear-gradient(
        45deg,
        var(--stripe-ban) 0px,
        var(--stripe-ban) 6px,
        transparent 6px,
        transparent 13px
    );
}


/* ==========================================================================
   6) SEZNAM SLOV – NOVÝ DESIGN (#content)
   ========================================================================== */

/* Akcent: výchozí (sekce mimo lekci) a odvozená „soft“ varianta.
   Lekce ho přepisují níže; --accent-soft se přepočítá na každém prvku zvlášť. */
#content,
.range-bar,
.lesson-block {
    --accent:      var(--purple-strong);
    --accent-text: var(--purple-light);
    --accent-soft: color-mix(in srgb, var(--accent) 16%, var(--surface-word));
}

.lesson-block.color-1 { --accent: var(--lesson-1); --accent-text: var(--lesson-1-text); }
.lesson-block.color-2 { --accent: var(--lesson-2); --accent-text: var(--lesson-2-text); }
.lesson-block.color-3 { --accent: var(--lesson-3); --accent-text: var(--lesson-3-text); }
.lesson-block.color-4 { --accent: var(--lesson-4); --accent-text: var(--lesson-4-text); }
.lesson-block.color-5 { --accent: var(--lesson-5); --accent-text: var(--lesson-5-text); }

#content {
    flex-direction: column;
    gap: 18px;
    width: 100%;
}

/* ----- Toolbar nad seznamem ----- */
.list-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0 0 14px;
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background-color: var(--surface-word);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: .9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .15s;
}
.tool-btn:hover {
    border-color: var(--purple);
    color: var(--purple-light);
}
.tool-btn.active {
    background-color: var(--purple-strong);
    border-color: var(--purple-strong);
    color: var(--on-strong);
}
.tool-btn[hidden] { display: none; }

/* ----- Lekce ----- */
#content .lesson-block {
    display: block;
    margin: 0;
    width: 100%;
    background-color: var(--surface-lesson);
    border: 1px solid var(--border);
    border-left: 5px solid var(--accent);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-sm);
    overflow: visible;
}

.lesson-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
}

#content .lesson-toggle {
    flex: 1 1 220px;
    display: flex;
    align-items: center;
    gap: 12px;
    width: auto;
    padding: 8px 4px;
    background: none;
    border: none;
    text-align: left;
    font: inherit;
    color: var(--text);
    cursor: pointer;
}

.lesson-icon {
    color: var(--accent-text);
    transition: transform .25s;
}
.lesson-block.open .lesson-icon { transform: rotate(180deg); }

.lesson-title { font-size: 1.1rem; font-weight: 700; }

.lesson-count {
    padding: 2px 10px;
    background-color: var(--accent-soft);
    color: var(--accent-text);
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 600;
}

#content .lesson-content {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
    gap: 16px;
    width: 100%;
    box-sizing: border-box;
    padding: 4px 14px 16px;
}

/* ----- Sekce ----- */
#content .lesson {
    display: flex;
    flex-direction: column;
    height: fit-content;
    gap: 10px;
    margin: 0;
    box-sizing: border-box;
    padding: 14px;
    border-radius: 12px;
}

.lesson-top {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}

#content .h20 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-text);
}

.section-range {
    font-size: .8rem;
    color: var(--text-faint);
}

#content .word-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.lesson-foot { margin-top: auto; padding-top: 4px; }

/* ----- Slovíčko ----- */
#content .word-item {
    position: relative;
    margin: 0;
    padding: 0;
    background-color: var(--surface-word);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    list-style: none;
    transition: border-color .15s, box-shadow .15s, background-color .15s;
}
#content .word-item.has-detail { cursor: pointer; }
#content .word-item.has-detail:hover { border-color: var(--accent); }
#content .word-item.open {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.word-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 8px 10px 12px;
}

.word-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

#content .word {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 1.05rem;
    font-weight: 600;
}

#content .translation1 { font-size: .92rem; }

#content .word-meta {
    flex: none;
    width: 96px;
    flex-direction: column;
    gap: 4px;
}

#content .progress-container1 {
    margin-top: 0;
    border-radius: 999px;
}

#content .review-time-badge {
    min-height: 1em;
    font-size: .7rem;
    text-align: right;
}

.word-actions { display: flex; align-items: center; }

.expand-btn,
.options-button {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: none;
    border: none;
    border-radius: var(--r-sm);
    color: var(--text-muted);
    font-size: 18px;
    cursor: pointer;
}
.expand-btn:hover,
.options-button:hover {
    background-color: var(--hover-bg);
    color: var(--text);
}

.expand-btn i { font-size: 13px; transition: transform .25s; }
.word-item.open .expand-btn i { transform: rotate(180deg); }

/* Menu tří teček (zobrazení řídí JS přes style.display) */
#content .options-menu {
    display: none;
    position: absolute;
    top: 44px;
    right: 8px;
    z-index: 30;
    min-width: 190px;
    padding: 4px;
    background-color: var(--popup-bg);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-lg);
}

#content .options-menu button {
    display: block;
    width: 100%;
    padding: 9px 12px;
    background: none;
    border: none;
    border-radius: 7px;
    text-align: left;
    font-size: .9rem;
    color: var(--text);
    cursor: pointer;
}
#content .options-menu button:hover { background-color: var(--hover-bg); }

/* Rozbalovací detail (animace výšky bez JS) */
.word-detail {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .28s ease;
}
.word-item.open .word-detail { grid-template-rows: 1fr; }

.detail-inner { min-height: 0; overflow: hidden; }

.detail-body {
    display: flex;
    gap: 14px;
    margin: 0 12px;
    padding: 12px 2px 14px;
    border-top: 1px dashed var(--border);
}

.detail-photo img {
    display: block;
    width: 120px;
    height: 120px;
    object-fit: cover;
    background-color: var(--surface-sunken);
    border-radius: var(--r-md);
}

.detail-text {
    flex: 1;
    margin: 0;
    font-size: .93rem;
    line-height: 1.55;
    color: var(--text);
}

/* ----- Výběr rozsahu ----- */
body.vyber-rozsahu #content .word-item {
    cursor: pointer;
    user-select: none;
}
#content .word-item.in-range {
    background-color: var(--accent-soft);
    border-color: var(--accent);
}
#content .word-item.range-start {
    outline: 2px solid var(--accent);
    outline-offset: -1px;
}

.range-bar {
    position: fixed;
    left: 50%;
    bottom: 16px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: calc(100% - 24px);
    padding: 10px 12px 10px 18px;
    background-color: var(--popup-bg);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-lg);
    color: var(--text);
    transform: translate(-50%, 150%);
    transition: transform .3s ease;
}
.range-bar.visible { transform: translate(-50%, 0); }

.range-info { font-size: .92rem; }

.range-close {
    width: 32px;
    height: 32px;
    background-color: var(--hover-bg);
    border: none;
    border-radius: var(--r-sm);
    color: var(--text);
    cursor: pointer;
}

.range-bar .mode-menu { top: auto; bottom: calc(100% + 6px); }

/* ----- Split button (hlavní akce + nabídka režimů) ----- */
.mode-split { position: relative; display: inline-flex; }

.mode-main {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    background-color: var(--accent);
    border-radius: 9px 0 0 9px;
    color: var(--on-strong);
    font-size: .9rem;
    font-weight: 600;
    text-decoration: none;
}

.mode-toggle {
    padding: 0 11px;
    background-color: var(--accent);
    border: none;
    border-left: 1px solid var(--on-strong-line);
    border-radius: 0 9px 9px 0;
    color: var(--on-strong);
    font-size: 12px;
    cursor: pointer;
}

.mode-main:hover,
.mode-toggle:hover { filter: brightness(.9); }

.mode-menu {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 50;
    min-width: 200px;
    padding: 4px;
    background-color: var(--popup-bg);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-lg);
}
.mode-split.open .mode-menu { display: block; }
.mode-split.dropup .mode-menu { top: auto; bottom: calc(100% + 6px); }
.lesson-head .mode-menu { left: auto; right: 0; }

.mode-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 7px;
    color: var(--text);
    font-size: .92rem;
    text-decoration: none;
}
.mode-item i { width: 18px; text-align: center; color: var(--accent-text); }
.mode-item:hover { background-color: var(--accent-soft); }

/* ----- Mobil ----- */
@media (max-width: 600px) {
    .lesson { width: 100% !important; padding: 16px; }
    .word-item { margin-bottom: 12px; }
    .word-list li { padding: 8px; }
    .word { font-size: 20px; }
    .translation1 { font-size: 16px; }

    .lesson-head { padding: 8px 10px; }
    #content .lesson-content { padding: 4px 8px 12px; grid-template-columns: 1fr; }
    #content .lesson { padding: 12px; max-width: none; }
    #content .word { font-size: 1.1rem; }
    #content .translation1 { font-size: 1rem; }
    #content .word-item { margin-bottom: 0; }
    #content .word-meta { width: 72px; }
    .detail-body { flex-direction: column; }
    .detail-photo img { width: 100%; height: auto; max-height: 220px; }
    .range-bar { flex-wrap: wrap; justify-content: space-between; bottom: 10px; width: 80%; }
}

@media (max-width: 1000px) {
    .range-bar { bottom: 80px; }
}


/* ==========================================================================
   7) TLAČÍTKA REŽIMŮ (velká / malá čtvercová)
   ========================================================================== */

.velke-tlacitko,
.male-tlacitko {
    position: relative;
    margin: 20px;
    border: 2px solid var(--text-faint);
    border-radius: 16px;
    background-color: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease;
    container-type: size;
    box-sizing: border-box;
}

.velke-tlacitko { width: 150px; height: 150px; }
.male-tlacitko  { width: 70px; height: 70px; border-radius: 10px; }

.velke-tlacitko:hover,
.male-tlacitko:hover { transform: scale(1.1); }

.velke-tlacitko > .button-container,
.male-tlacitko > .button-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.card1 {
    font-size: 30cqi;
    color: var(--text-faint);
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), color 0.3s ease;
}

.card1-button:hover .card1 { transform: translateY(-5px) scale(1.1) rotate(15deg); }

.card2 {
    width: 50px;
    width: 33.333cqi;
    height: 80px;
    height: 53.333cqi;
    border: 2px solid var(--text-faint);
    border-radius: 8px;
    background-color: transparent;
    transform: perspective(400px) rotateY(20deg);
    transform: perspective(266.667cqi) rotateY(20deg);
    transition: transform 0.6s ease;
}

.card2-button:hover .card2 {
    transform: perspective(400px) rotateY(370deg);
    transform: perspective(266.667cqi) rotateY(370deg);
}

.card1-button .text,
.card2-button .text,
.card3-button .text,
.card4-button .text,
.card5-button .text,
.male-tlacitko .text {
    margin-top: 8px;
    margin-top: 5.333cqi;
    color: var(--text-faint);
    font-size: 16px;
    font-size: 14.667cqi;
}

.male-tlacitko .text-icon {
    font-size: 20px;
    font-size: 38.571cqi;
}

.card3 {
    width: 45px;
    width: 30cqi;
    height: 70px;
    height: 46.667cqi;
    border: 2px solid var(--text-faint);
    border-radius: 2px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-size: 16cqi;
    font-weight: bold;
    color: var(--text-faint);
    overflow: hidden;
    transform: rotate(-5deg);
}

.card3::before,
.card3::after {
    position: absolute;
    transition: opacity 0.2s ease;
    filter: grayscale(100%);
    transform: rotate(-5deg);
}

.card3::before {
    content: "✏️";
    font-size: 20px;
    font-size: 13.333cqi;
    top: 10px;
    top: 6.667cqi;
    left: 10px;
    left: 6.667cqi;
    opacity: 1;
}

.card3::after {
    content: "✔️";
    font-size: 30px;
    font-size: 20cqi;
    opacity: 0;
}

.card3-button:hover .card3::before { opacity: 0; }
.card3-button:hover .card3::after  { opacity: 1; }

.card4 {
    background-image: url('/fotky/kurzor.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    position: relative;
    right: 5px;
    right: 3.333cqi;
    opacity: 1;
    transition: opacity 0.2s ease;
    filter: grayscale(100%);
    transform: rotate(-5deg);
    width: 80px;
    width: 53.333cqi;
    height: 80px;
    height: 53.333cqi;
}

.card4-button:hover .card4 {
    background-image: url('/fotky/kurzorklikajici.png');
    right: 6px;
    right: 4cqi;
    transition: opacity 1s ease;
}

.card5-button {
    border-color: var(--purple);
    opacity: 50%;
    pointer-events: none;
}
.card5-button.active {
    opacity: 100%;
    pointer-events: auto;
}

.card5-button .text,
.card5 { color: var(--purple); }

.requires-login {
    opacity: 0.55;
    cursor: not-allowed !important;
    filter: grayscale(0.8);
}
.requires-login:hover { transform: none !important; }

/* Šipka (otočí se při najetí) */
.card5 {
    font-size: 50px;
    font-size: 33.333cqi;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
    transform: rotate(0deg);
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
}
.card5-button:hover .card5 {
    opacity: 1;
    transform: rotate(180deg);
}

@media (max-width: 770px) {
    .velke-tlacitko {
        width: 110px;
        height: 110px;
        border-radius: 15px;
        margin: 10px;
    }

    .male-tlacitko {
        width: 75px;
        height: 75px;
        border-radius: 10px;
        margin: 10px;
    }

    .zakladni_informace { font-size: 12px; }

    .tlacitka_laiky_box.nic {
        max-width: 100%;
        justify-content: center;
    }
}


/* ==========================================================================
   8) DROPDOWN OPAKOVÁNÍ
   ========================================================================== */

.opakovani-dropdown {
    display: none;
    position: absolute;
    top: 95%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--purple-tint);
    border: 2px solid var(--purple);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    width: 170px;
    padding: 6px;
    flex-direction: column;
    gap: 4px;
    backdrop-filter: blur(2px);
}

.opakovani-dropdown.active { display: flex; }

.dropdown-item {
    background: transparent;
    border: none;
    padding: 10px 12px;
    text-align: left;
    width: 100%;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    color: var(--purple-light);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.dropdown-item:hover {
    background-color: var(--purple-strong);
    color: var(--on-strong);
}

.dropdown-item i {
    font-size: 14px;
    width: 16px;
    text-align: center;
}


/* ==========================================================================
   9) POČÍTADLO ZOBRAZENÍ („oko“)
   ========================================================================== */

.view-count-wrapper {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    overflow: hidden;
}

.digit-animate {
    display: inline-block;
    transition: transform 0.5s ease-in-out, opacity 0.5s;
}

.slide-up {
    transform: translateY(-100%);
    opacity: 0;
}

.slide-in { animation: slideIn 0.5s forwards; }

@keyframes slideIn {
    from { transform: translateY(100%); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}


/* ==========================================================================
   10) LAJKY, SDÍLENÍ, OZNÁMENÍ, NÁPOVĚDA
   ========================================================================== */

.hornipruh1 {
    display: flex;
    gap: 10px;
    justify-content: center;
    height: 50px;
    margin: 5px 0;
}
.hornipruh1:hover {
    background-color: var(--hover-bg);
    border-radius: 10px;
}

.like-section {
    display: flex;
    align-items: center;
    gap: 8px;
}

.like-button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.like-button svg {
    width: 28px;
    height: 28px;
    fill: var(--text-muted);
    transition: fill 0.3s ease, transform 0.3s ease;
}

.like-button.liked svg {
    fill: var(--danger);
    transform: scale(1.2);
    animation: pulse 0.6s ease;
}

.avatars img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    margin-left: -10px;
    margin-top: 2px;
    border: 2px solid var(--avatar-ring);
    box-shadow: 0 0 4px var(--shadow-ring);
}

.avatars {
    display: flex;
    align-items: center;
    gap: 5px;
    transition: opacity 0.5s ease;
    margin-top: 5px;
    margin-left: 14px;
}
.avatars.fade-out { opacity: 0; }

.tlacitka_laiky_box {
    display: flex;
    flex-wrap: wrap;
    max-width: 55%;
    justify-content: flex-start;
    flex-direction: column;
    margin-bottom: var(--cviceniBoyBottom);
    align-items: center;
}

.like-share-container {
    display: flex;
    position: absolute;
    right: 20px;
    bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.mala_tlacitka {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
}

@keyframes pulse {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.3); }
    100% { transform: scale(1); }
}

.nastaveni-lekci {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.fialovy_button {
    background-color: var(--purple-strong);
    color: var(--on-strong);
    border: none;
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
    margin-right: 8px;
    font-size: 0.9rem;
    transition: background 0.2s;
}
.fialovy_button:hover { background-color: var(--purple-strong-hover); }

.audio-button-cviceni {
    background: none;
    color: var(--text-muted);
    border: none;
    padding: 5px 5px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.3s;
    margin: 0 5px;
}
.audio-button-cviceni:hover {
    color: var(--text-strong);
    transform: scale(1.02);
}

.share-btn {
    background-color: var(--glass);
    border: 1px solid var(--border);
    backdrop-filter: blur(6px);
    border-radius: 160px;
    width: 130px;
    height: 45px;
    place-items: center;
    cursor: pointer;
    transition: 0.2s ease;
    color: var(--text);
    font-size: 1.2rem;
    overflow: hidden;
}
.share-btn:hover {
    background-color: var(--glass-hover);
    transform: scale(1.05);
}

/* Efekt záblesku (glint) */
.share-btn::after {
    content: "";
    position: absolute;
    top: -100%;
    left: -150%;
    width: 200%;
    height: 300%;
    background-image: linear-gradient(120deg, transparent 0%, var(--glint) 50%, transparent 100%);
    animation: shine 10s infinite;
}

@keyframes shine {
    0%   { left: -200%; }
    20%  { left: -200%; }
    30%  { left: 150%; }
    100% { left: 150%; }
}

.toastinfo {
    position: fixed;
    bottom: 20px;
    left: 50%;
    background-color: var(--toast-bg);
    color: var(--toast-text);
    padding: 10px 16px;
    border-radius: 10px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 10;
}
.toastinfo.show {
    opacity: 1;
    transform: translateX(0%) translateY(-10px);
}


/* ==========================================================================
   11) BARVY TEXTU (výběr barvy v editoru)
   ========================================================================== */

.color-red    { color: var(--txt-red); }
.color-green  { color: var(--txt-green); }
.color-blue   { color: var(--txt-blue); }
.color-yellow { color: var(--txt-yellow); }
.color-purple { color: var(--txt-purple); }
.color-orange { color: var(--txt-orange); }

#text-color-tooltip {
    position: absolute;
    background-color: var(--popup-bg);
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    padding: 6px;
    display: none;
    gap: 6px;
    box-shadow: var(--shadow-lg);
    z-index: 10000;                 /* musí být vždy úplně nahoře */
    transition: opacity 0.2s ease;
    opacity: 0;
}

#text-color-tooltip.visible {
    display: flex;
    opacity: 1;
}

.color-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.1s ease, border-color 0.1s ease;
    background-color: currentColor;   /* převezme barvu z .color-X */
}
.color-btn:hover {
    transform: scale(1.15);
    border-color: var(--text-strong);
}

.color-btn.remove-color {
    background-color: transparent;
    border: 2px solid var(--text-muted);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    font-weight: bold;
    font-size: 14px;
}
.color-btn.remove-color::after { content: "✕"; }


/* ==========================================================================
   12) EMBED MODAL (obsah)
   ========================================================================== */

.embed-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin: 15px 0;
}

.embed-opt-btn {
    background-color: var(--hover-bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}
.embed-opt-btn:hover,
.embed-opt-btn.active {
    background-color: var(--purple);
    color: var(--on-purple);
    border-color: var(--purple);
    font-weight: bold;
}

.embed-code-box label {
    display: block;
    font-size: 13px;
    margin-bottom: 5px;
    color: var(--text-muted);
}

.embed-code-box textarea {
    width: 100%;
    background-color: var(--surface-sunken);
    border: 1px solid var(--border);
    color: var(--blue);
    padding: 10px;
    border-radius: 6px;
    font-family: monospace;
    font-size: 13px;
    resize: none;
    box-sizing: border-box;
}