body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

.navbar {
    background-color: var(--bs-tertiary-bg);
}

.navbar .container-fluid {
    gap: 25px;
}

.navbar .nav-link {
    color: var(--bs-body-color);
}

.navbar .navbar-brand,
.navbar .navbar-brand:hover,
.navbar .navbar-brand:focus {
    color: var(--bs-body-color) !important;
}

.dropdown-menu {
    max-height: 300px;
    overflow-y: auto;
    background-color: var(--bs-body-bg);
    border-color: var(--bs-border-color);
}

.dropdown-item {
    color: var(--bs-body-color);
}

.dropdown-item:active, .dropdown-item:focus {
    background-color: var(--bs-secondary-bg);
    color: var(--bs-body-color);
}

.topics-search,
.lang-search {
    padding: 5px 1rem;
}

.topics-search input,
.lang-search input {
    width: 100%;
    padding: 5px;
    border: 0.5px solid var(--bs-border-color);
    border-radius: 4px;
    box-sizing: border-box;
    margin-bottom: 5px;
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
}

.mode-btn-group .btn {
    width: 80px;
    white-space: nowrap;
    border: 1px solid var(--active-color);
    background: var(--inactive-color);
    color: var(--active-color);
}

.mode-btn-group .btn.active {
    background: var(--active-color);
    color: var(--inactive-color);
}

.container {
    padding: 15px;
    max-width: 1200px;
    margin: 0 auto;
}

main {
    flex: 1;
}

.flashcard-container {
    position: relative;
    margin-bottom: 20px;
    width: 625px;
    max-width: 100%;
    margin: 20px auto;
}

.flashcard {
    width: 100%;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    border: 1px solid var(--bs-border-color);
    background-color: var(--bs-tertiary-bg);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(var(--bs-black-rgb), 0.1);
    font-size: 17px;
    text-align: center;
    cursor: pointer;
    box-sizing: border-box;
}

.list-container {
    width: 625px;
    max-width: 100%;
    margin: 20px auto;
    font-size: 17px;
    text-align: left;
}

.list-item {
    margin-bottom: 15px;
    cursor: pointer;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
}

.list-item.active {
    font-weight: bold;
}

.list-number {
    min-width: 30px;
    text-align: right;
    margin-right: 10px;
}

.list-content {
    flex: 1;
}

.list-content .source {
    display: block;
    word-wrap: break-word;
}

.list-content .target {
    display: block;
    margin-left: 1px;
    word-wrap: break-word;
}

.nav-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

.nav-btn {
    padding: 15px 30px;
    font-size: 17px;
    cursor: pointer;
    background: var(--inactive-color);
    color: var(--active-color);
    border: 2px solid var(--active-color);
    border-radius: 10px;
    transition: background-color 0.5s, color 0.5s;
}

.nav-btn:active {
    background-color: var(--active-color);
    color: var(--inactive-color);
}

.topic-btn {
    padding: 15px 30px;
    font-size: 17px;
    cursor: pointer;
    background: none;
    border: 2px solid transparent; /* Changed from white to transparent */
    color: var(--bs-body-color);
}

.progress {
    background-color: var(--bs-body-bg);
    padding: 0px 0px;
    font-size: 12px;
}

.auto-controls {
    position: absolute;
    right: 10px;
    bottom: 10px;
}

.choice-options {
    flex-direction: column;
    gap: 15px;
    width: 625px;
    margin: 0 auto;
}

.target-phrase {
    font-size: 17px;
    text-align: center;
    padding: 20px;
    border: 1px solid var(--bs-border-color);
    border-radius: 10px;
    margin-bottom: 20px;
    width: 100%;
    box-sizing: border-box;
    cursor: pointer;
}

.choice-buttons {
    display: grid;
    gap: 10px;
}

.choice-btn {
    padding: 15px;
    border: 1px solid var(--bs-border-color);
    cursor: pointer;
    font-size: 17px;
    text-align: center;
    border-radius: 10px;
    background-color: var(--choice-btn-bg);
    color: var(--choice-btn-color);
}

.hidden { display: none; }
.correct { background: var(--correct); color: var(--bs-light); }
.incorrect { background: var(--incorrect); color: var(--bs-light); }

.one-side-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.one-side-source, .one-side-target {
    width: 100%;
    text-align: center;
    padding: 10px;
    font-size: 17px;
}

.audio-placeholder {
    font-size: 17px;
    padding: 20px;
    border: 1px solid var(--bs-border-color);
    border-radius: 10px;
    cursor: pointer;
    background-color: var(--bs-tertiary-bg);
}

footer {
    background-color: var(--bs-tertiary-bg);
    padding: 0 16px;
    height: auto;
    width: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    font-family: Arial, sans-serif;
    font-size: 20px;
    font-weight: none;
    min-height: 66px;
}

.footer-content {
    display: flex;
    align-items: center;
    gap: 25px;
}

footer img {
    width: 35px;
    height: 35px;
    cursor: pointer;
}

.footer-icon {
    width: 35px;
    height: 35px;
    cursor: pointer;
    fill: var(--bs-body-color);
}

.games-icon {
    width: 36px;
    height: 36px;
}

.rss-icon {
    width: 25px;
    height: 24px;
}

.rss-icon-check {
    display: none;
    width: 24px;
    height: 24px;
}


.footer-title {
    margin: 0;
    font-family: Arial, sans-serif;
    font-size: 20px;
    font-weight: none;
    color: var(--bs-body-color);
    text-decoration: none;
}

.loading-spinner {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 4px solid var(--bs-tertiary-bg);
    border-top: 4px solid var(--bs-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    z-index: 1000;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.modal-dialog {
    max-width: 600px;
    width: 100%;
}

.modal-content {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
}

.modal-header {
    border-bottom-color: var(--bs-border-color);
}

#gamesIframe {
    width: 100%;
    height: 80vh;
    border: none;
}

@media (max-width: 991.98px) {
    .navbar .container-fluid {
        row-gap: 0;
    }
}

@media (max-width: 768px) {
    .flashcard {
        min-height: 120px;
        font-size: 14px;
    }
    .list-container {
        width: 100%;
    }
    .list-item {
        font-size: 14px;
    }
    .list-number {
        min-width: 25px;
    }
    .list-content .target {
        margin-left: 1px;
    }
    .one-side-source, .one-side-target {
        font-size: 14px;
    }
    .target-phrase {
        font-size: 14px;
    }
    .choice-btn {
        font-size: 14px;
    }
    .audio-placeholder {
        font-size: 14px;
    }
    .nav-btn, .topic-btn {
        padding: 10px 20px;
    }
    .mode-btn-group .btn {
        width: 60px;
    }
    .choice-options, .flashcard-container {
        width: 100%;
    }
    footer .footer-content {
        gap: 15px;
    }
    .navbar .container-fluid {
        gap: 15px;
    }
    .nav-controls {
        gap: 10px;
    }
    .modal-dialog {
        max-width: 95%;
    }
    .modal-title, .modal-body {
        font-size: 14px;
    }
    #gamesIframe {
        height: 70vh;
    }
}

#autoBtn {
  border: none;
  background-color: transparent;
  padding: 0;
}

.rss-icon-wrapper {
    width: 35px;
    height: 35px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--bs-body-color);
}

.rss-icon-wrapper svg {
    width: 25px;
    height: 24px;
}
.navbar .nav-link.dropdown-toggle:active,
.navbar .nav-link.dropdown-toggle:focus,
.navbar .nav-link.dropdown-toggle.show {
    color: var(--bs-body-color) !important;
}

@media (max-width: 480px) {
    .footer-content {
        gap: 0;
        justify-content: space-between;
        width: 100%;
    }

    .footer-icon {
        width: 26px;
        height: 26px;
    }

    .games-icon {
        width: 27px;
        height: 27px;
    }

    .rss-icon-wrapper {
        width: 26px;
        height: 26px;
    }

    .rss-icon-wrapper svg {
        width: 18px;
        height: 18px;
    }

    .footer-title {
        font-size: 16px;
        margin-left: 10px;
    }
}
[v-cloak] { display: none; }