/* Nav bar (shared pattern from crossword) */

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    margin-bottom: 1rem;
}

.logo {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary-color, #6351ce);
    text-decoration: none;
}

nav {
    display: flex;
    gap: 1rem;
}

nav a {
    text-decoration: none;
    color: var(--text-color, #333);
    font-weight: 500;
    padding: 0.5rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

nav a:hover, nav a.active {
    color: var(--primary-color, #6351ce);
    background-color: rgba(99, 81, 206, 0.1);
}

/* Game area — light themed */

.game-area {
    max-width: 640px;
    margin: 0 auto;
    padding: 0 0 32px;
}

.game-area h1 {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 4px;
    color: var(--primary-color, #6351ce);
}

.game-area .subtitle {
    text-align: center;
    color: #888;
    font-size: 0.85rem;
    margin-bottom: 24px;
}

/* Back button */
.back-btn {
    background: none;
    border: none;
    color: var(--primary-color, #6351ce);
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0;
    margin-bottom: 16px;
    transition: opacity 0.15s;
    display: inline-flex;
    align-items: center;
}
.back-btn:hover { opacity: 0.7; }

/* Mode select */
#mode-select {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 20px;
}

.mode-btn {
    background: #fff;
    border: 2px solid #e8e5f5;
    border-radius: 14px;
    padding: 20px 24px;
    color: var(--text-color, #333);
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
.mode-btn:hover { border-color: var(--primary-color, #6351ce); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(99, 81, 206, 0.15); }
.mode-btn small { display: block; font-size: 0.8rem; font-weight: 400; color: #888; margin-top: 4px; }

/* Progress bar */
.progress-bar {
    background: #e8e5f5;
    border-radius: 20px;
    height: 10px;
    margin-bottom: 16px;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    border-radius: 20px;
    background: linear-gradient(90deg, var(--primary-color, #6351ce), #3498db);
    transition: width 0.4s ease;
}

.status-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 20px;
}

.streak { color: #e67e22; font-weight: 700; }

/* Flashcard */
.flashcard {
    background: #fff;
    border-radius: 18px;
    padding: 32px 24px;
    text-align: center;
    min-height: 160px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    transition: transform 0.15s;
    margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 2px solid #e8e5f5;
}
.flashcard:active { transform: scale(0.98); }
.flashcard .label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px; color: #888; margin-bottom: 12px; }
.flashcard .term { font-size: 1.6rem; font-weight: 700; color: var(--primary-color, #6351ce); }
.flashcard .definition { font-size: 1rem; line-height: 1.5; color: var(--text-color, #333); }
.flashcard .tap-hint { font-size: 0.7rem; color: #aaa; margin-top: 16px; }

.flash-nav {
    display: flex;
    gap: 10px;
    justify-content: center;
}
.flash-nav button {
    background: #fff;
    border: 2px solid #e8e5f5;
    color: var(--text-color, #333);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.15s;
}
.flash-nav button:hover { background: #f5f3ff; }
.flash-nav .know-btn { background: #2ecc71; color: #fff; border-color: #2ecc71; }
.flash-nav .know-btn:hover { background: #27ae60; border-color: #27ae60; }
.flash-nav .dontknow-btn { background: #e74c3c; color: #fff; border-color: #e74c3c; }
.flash-nav .dontknow-btn:hover { background: #c0392b; border-color: #c0392b; }

/* Quiz */
.quiz-question {
    background: #fff;
    border-radius: 18px;
    padding: 28px 24px;
    margin-bottom: 16px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 2px solid #e8e5f5;
}
.quiz-question .label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px; color: #888; margin-bottom: 10px; }
.quiz-question .prompt { font-size: 1.05rem; line-height: 1.5; color: var(--text-color, #333); }

.choices {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}

.choice-btn {
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    padding: 14px 18px;
    color: var(--text-color, #333);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    transition: all 0.15s;
    line-height: 1.4;
}
.choice-btn:hover:not(.locked) { border-color: var(--primary-color, #6351ce); background: #f5f3ff; }
.choice-btn.correct { border-color: #2ecc71; background: rgba(46,204,113,0.1); }
.choice-btn.wrong { border-color: #e74c3c; background: rgba(231,76,60,0.1); }
.choice-btn.locked { cursor: default; }

.next-btn {
    display: none;
    margin: 0 auto;
    background: var(--primary-color, #6351ce);
    border: none;
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    padding: 12px 36px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.15s;
}
.next-btn:hover { opacity: 0.85; }

/* Results */
.results {
    text-align: center;
    padding: 40px 0;
}
.results .score-big {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color, #6351ce);
}
.results .score-label {
    color: #888;
    margin-bottom: 24px;
}

.results-breakdown {
    text-align: left;
    margin: 24px 0;
}
.result-item {
    background: #fff;
    border: 1px solid #e8e5f5;
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.85rem;
}
.result-item .icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.result-item .term-name { font-weight: 700; }

.restart-btn {
    background: var(--primary-color, #6351ce);
    border: none;
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    padding: 14px 36px;
    border-radius: 12px;
    cursor: pointer;
    margin: 8px;
    transition: opacity 0.15s;
}
.restart-btn:hover { opacity: 0.85; }

.hidden { display: none !important; }

@keyframes popIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: popIn 0.3s ease forwards; }

/* ============================================================
   SCENARIO / STUDY GUIDE MODE
   ============================================================ */

/* Scenario select cards */
#scenario-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.scenario-card {
    background: #fff;
    border: 2px solid #e8e5f5;
    border-radius: 14px;
    padding: 18px 24px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-family: 'Poppins', sans-serif;
}
.scenario-card:hover {
    border-color: var(--primary-color, #6351ce);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(99, 81, 206, 0.15);
}
.scenario-system {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #888;
    font-weight: 600;
}
.scenario-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color, #333);
}

/* Step indicator */
.step-indicator {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary-color, #6351ce);
    font-weight: 600;
    margin-bottom: 16px;
}

.step-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-color, #333);
    margin-bottom: 8px;
}

/* Scenario question box */
.scenario-question-box {
    background: #fff;
    border: 2px solid #e8e5f5;
    border-radius: 18px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}
.scenario-question-box .label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #888;
    margin-bottom: 10px;
}
.scenario-question-box p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color, #333);
}

.step-instruction {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 16px;
}

/* Vocab chips (Step 1) */
.vocab-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.vocab-chip {
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.85rem;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: all 0.15s;
    color: var(--text-color, #333);
}
.vocab-chip:hover:not(.locked) {
    border-color: var(--primary-color, #6351ce);
    background: #f5f3ff;
}
.vocab-chip.selected {
    border-color: var(--primary-color, #6351ce);
    background: rgba(99, 81, 206, 0.1);
    color: var(--primary-color, #6351ce);
    font-weight: 600;
}
.vocab-chip.correct {
    border-color: #2ecc71;
    background: rgba(46, 204, 113, 0.1);
    color: #27ae60;
    font-weight: 600;
}
.vocab-chip.wrong {
    border-color: #e74c3c;
    background: rgba(231, 76, 60, 0.1);
    color: #c0392b;
}
.vocab-chip.missed {
    border: 2px dashed #2ecc71;
    background: transparent;
    color: #27ae60;
}
.vocab-chip.locked {
    cursor: default;
}

/* Action buttons */
.check-btn,
.continue-btn,
.check-structures-btn {
    display: block;
    margin: 0 auto;
    background: var(--primary-color, #6351ce);
    border: none;
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    padding: 12px 36px;
    border-radius: 12px;
    cursor: pointer;
    transition: opacity 0.15s;
}
.check-btn:hover,
.continue-btn:hover,
.check-structures-btn:hover {
    opacity: 0.85;
}

.continue-btn {
    margin-top: 16px;
}

.check-structures-btn {
    margin-top: 12px;
}

/* Step 1 feedback */
.step1-feedback {
    text-align: center;
    margin-top: 16px;
}
.step1-feedback p {
    font-size: 1rem;
    color: var(--text-color, #333);
    margin-bottom: 8px;
}

/* Step 2 progress */
.step2-progress {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 12px;
}

.term-header {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color, #6351ce);
    text-align: center;
    margin-bottom: 20px;
}

/* Structure toggle (select-all-that-apply) */
.structure-toggle.selected {
    border-color: var(--primary-color, #6351ce);
    background: rgba(99, 81, 206, 0.1);
    color: var(--primary-color, #6351ce);
}

/* After checking: result states override selected state */
.structure-toggle.correct {
    border-color: #2ecc71 !important;
    background: rgba(46, 204, 113, 0.1) !important;
    color: #27ae60 !important;
}
.structure-toggle.wrong {
    border-color: #e74c3c !important;
    background: rgba(231, 76, 60, 0.1) !important;
    color: #c0392b !important;
}
.structure-toggle.missed {
    border: 2px dashed #2ecc71 !important;
    background: transparent !important;
    color: #27ae60 !important;
}

/* Missed state for choice buttons (non-structure) */
.choice-btn.missed {
    border: 2px dashed #2ecc71;
    background: transparent;
    color: #27ae60;
}

/* Scenario results */
.scenario-results {
    text-align: center;
    padding: 40px 0;
}
.scenario-results .score-big {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color, #6351ce);
}
.scenario-results .score-label {
    color: #888;
    margin-bottom: 24px;
    font-size: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .nav-wrapper {
        flex-direction: column;
        gap: 1rem;
    }

    nav {
        width: 100%;
        justify-content: center;
    }

    .vocab-chip {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
}