/* Verbs Page Styles */

/* Container */
.verbs-container {
    width: 100%;
    max-width: 800px;
    margin: 50px auto 40px;
    padding: 24px;
    min-height: calc(100vh - 150px);
}

/* Header */
.verbs-header {
    text-align: center;
    margin-bottom: 32px;
}

.verbs-header__title {
    font-size: 2rem;
    color: var(--text-primary);
    margin: 0 0 8px;
    font-weight: 700;
}

.verbs-header__subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin: 0;
}

/* Learn Card */
.learn-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    margin-bottom: 32px;
}

.learn-card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px var(--shadow-color);
    transform: translateY(-2px);
}

.learn-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    border-radius: 12px;
    flex-shrink: 0;
}

.learn-card__content {
    flex: 1;
}

.learn-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px;
}

.learn-card__desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

.learn-card__arrow {
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.learn-card:hover .learn-card__arrow {
    transform: translateX(4px);
    color: var(--accent);
}

/* Selection Section */
.selection-section {
    margin-bottom: 24px;
}

.selection-section__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 12px;
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.form-checkbox {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.form-checkbox:hover {
    border-color: var(--accent);
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    margin-right: 12px;
    accent-color: var(--primary);
}

.form-checkbox input:checked + .form-checkbox__label {
    color: var(--text-primary);
}

.form-checkbox__label {
    display: flex;
    flex-direction: column;
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.form-checkbox__jp {
    font-size: 1rem;
    font-weight: 600;
}

.form-checkbox__en {
    font-size: 0.8rem;
}

/* Group Grid */
.group-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.group-checkbox {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.group-checkbox:hover {
    border-color: var(--accent);
}

.group-checkbox input {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    accent-color: var(--primary);
}

.group-checkbox__label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* Practice Info */
.practice-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    margin-bottom: 24px;
}

.practice-info__level,
.practice-info__count {
    font-size: 0.95rem;
    color: var(--text-muted);
}

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

.practice-info__value {
    font-weight: 600;
    color: var(--primary);
}

#verbCount {
    font-weight: 700;
    color: var(--primary);
}

/* Start Button */
.start-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: auto;
    padding: 16px 32px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.start-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.start-btn.disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* ===== Learn Page Styles ===== */

.learn-container {
    width: 100%;
    max-width: 900px;
    margin: 50px auto 40px;
    padding: 24px;
}

.learn-header {
    text-align: center;
    margin-bottom: 32px;
}

.learn-header__title {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin: 0 0 8px;
    font-weight: 700;
}

.learn-header__subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin: 0;
}

/* Learn Tabs */
.learn-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    padding: 4px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--card-border);
}

.learn-tab {
    flex: 1;
    min-width: 100px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.learn-tab:hover {
    color: var(--text-primary);
    background: var(--hover-bg);
}

.learn-tab.active {
    background: var(--primary);
    color: white;
}

.learn-tab__badge {
    font-size: 0.75rem;
    opacity: 0.7;
}

.learn-tab.active .learn-tab__badge {
    opacity: 0.9;
}

/* Learn Content */
.learn-content {
    min-height: 400px;
}

.learn-panel {
    display: none;
}

.learn-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* Rule Card */
.rule-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 24px;
}

.rule-card__title {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin: 0 0 8px;
    font-weight: 700;
}

.rule-card__desc {
    font-size: 1rem;
    color: var(--text-muted);
    margin: 0 0 24px;
    line-height: 1.6;
}

.rule-card__section {
    margin-bottom: 24px;
}

.rule-card__section h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 0 0 12px;
    font-weight: 600;
}

.rule-card__note {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 12px;
    font-style: italic;
}

/* Ending Grid */
.ending-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.ending {
    padding: 8px 16px;
    background: var(--primary);
    color: white;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Example List */
.example-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.example-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--hover-bg);
    border-radius: 8px;
}

.example-item__verb {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.example-item__reading {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.example-item__meaning {
    font-size: 0.9rem;
    color: var(--accent);
    margin-left: auto;
}

/* Conjugation Table */
.conjugation-table {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.conjugation-row {
    display: grid;
    grid-template-columns: 140px 1fr 1fr;
    gap: 16px;
    padding: 12px 16px;
    background: var(--hover-bg);
    border-radius: 8px;
    align-items: center;
}

.conjugation-row__form {
    font-weight: 600;
    color: var(--text-primary);
}

.conjugation-row__rule {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.conjugation-row__example {
    color: var(--accent);
    font-weight: 500;
}

/* Te-form Rules */
.te-rules {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.te-rule {
    display: flex;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--hover-bg);
    border-radius: 8px;
}

.te-rule__pattern {
    font-weight: 600;
    color: var(--text-primary);
}

.te-rule__example {
    color: var(--accent);
}

/* Exception Box */
.exception-box {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 8px;
    margin-top: 12px;
}

.exception-box__icon {
    font-size: 1.2rem;
}

.exception-box__text {
    color: var(--text-primary);
    font-size: 0.95rem;
}

/* ===== Practice Page Styles ===== */

.practice-container {
    width: 100%;
    max-width: 600px;
    margin: 50px auto 40px;
    padding: 24px;
    min-height: calc(100vh - 150px);
    display: flex;
    flex-direction: column;
}

/* Progress Bar */
.practice-progress {
    margin-bottom: 24px;
}

.practice-progress__info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.practice-progress__label,
.practice-progress__count {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.practice-progress__bar {
    height: 6px;
    background: var(--card-border);
    border-radius: 3px;
    overflow: hidden;
}

.practice-progress__fill {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Flashcard */
.flashcard {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.flashcard__header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.flashcard__group,
.flashcard__form {
    font-size: 0.8rem;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 500;
}

.flashcard__group {
    background: var(--hover-bg);
    color: var(--text-muted);
}

.flashcard__form {
    background: var(--primary);
    color: white;
}

.flashcard__body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px 0;
}

.flashcard__verb {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.flashcard__reading {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.flashcard__meaning {
    font-size: 1rem;
    color: var(--accent);
    margin-bottom: 20px;
    transition: filter 0.2s ease;
    cursor: pointer;
}

.flashcard__meaning.blurred {
    filter: blur(6px);
    user-select: none;
}

.flashcard__divider {
    width: 80px;
    height: 2px;
    background: var(--card-border);
    margin: 16px 0;
}

.flashcard__target {
    display: flex;
    align-items: center;
    gap: 12px;
}

.flashcard__arrow {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.flashcard__target-form {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary);
}

/* Answer Area */
.flashcard__answer {
    margin-top: 20px;
    padding: 20px;
    background: var(--hover-bg);
    border-radius: 12px;
}

.flashcard__answer-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.flashcard__answer-reading {
    font-size: 1rem;
    color: var(--text-muted);
}

/* Input Area */
.flashcard__input-area {
    margin-top: 20px;
    display: flex;
    gap: 12px;
}

.flashcard__input {
    flex: 1;
    padding: 14px 18px;
    font-size: 1.1rem;
    border: 2px solid var(--card-border);
    border-radius: 12px;
    background: var(--input-bg);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s ease;
}

.flashcard__input:focus {
    border-color: var(--primary);
}

.flashcard__check-btn {
    padding: 14px 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.flashcard__check-btn:hover {
    background: var(--primary-dark);
}

/* Actions */
.flashcard__actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
}

.flashcard__hint-btn,
.flashcard__reveal-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.flashcard__hint-btn:hover,
.flashcard__reveal-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Hint Modal */
.hint-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}

.hint-modal__content {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    max-width: 400px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.hint-modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.hint-modal__title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.hint-modal__close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--hover-bg);
    border: none;
    border-radius: 8px;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
}

.hint-modal__body {
    color: var(--text-primary);
}

.hint-modal__verb {
    font-size: 1.1rem;
    margin: 0 0 12px;
}

.hint-modal__rule {
    font-size: 1rem;
    color: var(--text-muted);
    margin: 0 0 8px;
}

.hint-modal__pattern {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent);
    margin: 0;
    padding: 12px;
    background: var(--hover-bg);
    border-radius: 8px;
    text-align: center;
}

/* Feedback Modal */
.feedback-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}

.feedback-modal__content {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 32px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.feedback-modal__icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.feedback-modal__icon.correct {
    color: #10b981;
}

.feedback-modal__icon.incorrect {
    color: #ef4444;
}

.feedback-modal__title {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0 0 16px;
}

.feedback-modal__title.correct {
    color: #10b981;
}

.feedback-modal__title.incorrect {
    color: #ef4444;
}

.feedback-modal__details {
    text-align: left;
    padding: 16px;
    background: var(--hover-bg);
    border-radius: 12px;
    margin-bottom: 16px;
}

.feedback-modal__your-answer,
.feedback-modal__correct {
    margin: 0;
    padding: 4px 0;
    font-size: 1rem;
}

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

.feedback-modal__your-answer span:last-child {
    font-weight: 600;
    color: var(--text-primary);
}

.feedback-modal__correct span:last-child {
    font-weight: 600;
    color: var(--accent);
}

.feedback-modal__explanation {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin: 0 0 20px;
}

.feedback-modal__actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.feedback-modal__btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.feedback-modal__btn--retry {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.feedback-modal__btn--next {
    background: var(--primary);
    color: white;
}

.feedback-modal__btn:hover {
    transform: translateY(-2px);
}

/* Practice Nav */
.practice-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 24px;
}

.practice-nav__btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    font-size: 0.95rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.practice-nav__btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
}

.practice-nav__btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.practice-nav__btn--skip {
    color: var(--text-muted);
}

/* Utility */
.hidden {
    display: none !important;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Difficult Verbs Dropdown */
.difficult-dropdown {
    margin-bottom: 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
}

.difficult-dropdown__header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.difficult-dropdown__header::-webkit-details-marker {
    display: none;
}

.difficult-dropdown__title {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
}

.difficult-dropdown__count {
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
}

.difficult-dropdown__chevron {
    margin-left: auto;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.difficult-dropdown[open] .difficult-dropdown__chevron {
    transform: rotate(180deg);
}

.difficult-dropdown__content {
    padding: 0 18px 14px;
    border-top: 1px solid var(--card-border);
}

.difficult-dropdown__list {
    list-style: none;
    padding: 0;
    margin: 12px 0;
}

.difficult-dropdown__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--hover-bg);
    border-radius: 8px;
    margin-bottom: 6px;
}

.difficult-dropdown__item:last-child {
    margin-bottom: 0;
}

.difficult-dropdown__verb-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.difficult-dropdown__verb-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.difficult-dropdown__verb-form {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: var(--card-bg);
    padding: 2px 8px;
    border-radius: 4px;
}

.difficult-dropdown__error-rate {
    font-size: 0.85rem;
    font-weight: 600;
    color: #ef4444;
}

.difficult-dropdown__actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--card-border);
}

.difficult-dropdown__practice {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.2s ease;
}

.difficult-dropdown__practice:hover {
    background: var(--primary-dark);
}

.difficult-dropdown__clear {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.difficult-dropdown__clear:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .verbs-container,
    .learn-container,
    .practice-container {
        padding: 16px;
        margin-top: 50px;
    }

    .verbs-header__title,
    .learn-header__title {
        font-size: 1.6rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .conjugation-row {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .conjugation-row__rule,
    .conjugation-row__example {
        padding-left: 12px;
    }

    .learn-tabs {
        flex-direction: column;
    }

    .flashcard__verb {
        font-size: 2.5rem;
    }

    .flashcard__input-area {
        flex-direction: column;
    }

    .flashcard__check-btn {
        width: 100%;
    }

    .practice-nav {
        flex-direction: column;
        gap: 12px;
    }

    .practice-nav__btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .verbs-header__title {
        font-size: 1.4rem;
    }

    .learn-card {
        flex-direction: column;
        text-align: center;
    }

    .learn-card__arrow {
        display: none;
    }

    .flashcard__verb {
        font-size: 2rem;
    }

    .example-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .example-item__meaning {
        margin-left: 0;
    }
}