:root {
    --primary-color: #32486D; /* Biru Gelap Korporat */
    --accent-color: #007bff; /* Biru Terang untuk Interaksi */
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white-color: #ffffff;
    --border-color: #dee2e6;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Main Container - Skop utama untuk mengelak konflik */
.main-container {
    font-family: 'Inter', sans-serif;
    color: var(--dark-color);
    box-sizing: border-box;
}

/* Header with Mode Toggle */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.header h1 {
    font-size: 24px;
    margin: 0;
    color: var(--primary-color);
}

/* Mode Toggle Switch */
.toggle-switch {
    display: flex;
    background-color: #e9ecef;
    border-radius: 18px;
    padding: 4px;
    border: 1px solid var(--border-color);
}
.toggle-switch button {
    border: none !important;
    background-color: transparent !important;
    padding: 8px 16px !important;
    border-radius: 14px !important;
    cursor: pointer !important;
    font-weight: 600 !important;
    font-size: 14px !important;
    color: #495057 !important;
    transition: all 0.3s ease;
    line-height: 1.5 !important;
}
.toggle-switch button.active {
    background-color: var(--warning-color) !important;
    color: var(--dark-color) !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1) !important;
}

/* Practice Mode Controls */
.practice-controls {
    display: none;
    justify-content: flex-end;
    gap: 10px;
    margin-bottom: 16px;
}
.mode-latihan .practice-controls {
    display: flex;
}
.practice-controls button {
    width: 42px !important;
    height: 42px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: relative !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    background-color: var(--white-color) !important;
    cursor: pointer !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05) !important;
    transition: background-color 0.2s, box-shadow 0.2s;
    padding: 0 !important;
}
.practice-controls button:hover {
    background-color: #e9ecef !important;
}
.practice-controls button#reset-btn {
    background-color: var(--danger-color) !important;
    color: white !important;
    border-color: var(--danger-color) !important;
}
.practice-controls button#reset-btn:hover {
    background-color: #c82333 !important;
}
.practice-controls button:disabled {
    background-color: #e9ecef !important;
    color: #6c757d !important;
    cursor: not-allowed !important;
    opacity: 0.7 !important;
}
.practice-controls button svg {
    opacity: 0.8;
}
.practice-controls button#reset-btn svg {
    stroke: var(--white-color);
    opacity: 1;
}

.practice-controls button::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--dark-color);
    color: var(--white-color);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    pointer-events: none;
    z-index: 20;
}
.practice-controls button:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Arabic Content Area */
.content-container {
    font-family: 'Amiri', serif;
    text-align: right;
    line-height: 2.8;
    font-size: 24px;
    direction: rtl;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.interactive-word {
    position: relative;
    display: inline;
    padding: 2px 5px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Sentence Translation Button */
.translate-btn {
    display: inline-block !important;
    vertical-align: middle !important;
    background: none !important;
    border: none !important;
    cursor: pointer !important;
    font-size: 18px !important;
    color: var(--primary-color) !important;
    padding: 0 8px !important;
    opacity: 0.6;
    transition: opacity 0.2s;
    position: relative;
    line-height: 1 !important;
}
.translate-btn:hover {
    opacity: 1;
}

/* Tooltip for Translation Button */
.translate-btn::after {
    content: 'Terjemahan Kontekstual';
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--dark-color);
    color: var(--white-color);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    pointer-events: none;
    z-index: 20;
}

.translate-btn:hover::after {
    opacity: 1;
    visibility: visible;
}

/* === Learning Mode Styles === */
.mode-belajar .interactive-word:hover {
    background-color: var(--warning-color);
}

/* FIXED: Learn Tooltip - Guna display:none untuk state awal */
.learn-tooltip {
    display: none; /* PERUBAHAN: Dari visibility:hidden kepada display:none */
    position: absolute;
    background-color: var(--dark-color);
    color: var(--white-color);
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    z-index: 1000; /* PERUBAHAN: Tingkatkan z-index */
    width: 250px;
    bottom: calc(100% + 8px); /* PERUBAHAN: Gunakan calc untuk jarak lebih konsisten */
    left: 50%;
    transform: translateX(-50%);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* FIXED: Show state dengan display:block */
.learn-tooltip.show {
    display: block; /* PERUBAHAN: Mesti ada display:block */
    opacity: 1;
}

/* Alignment untuk tooltip yang terkeluar skrin */
.learn-tooltip.align-left {
    left: 0;
    transform: translateX(0);
}

.learn-tooltip.align-right {
    left: auto;
    right: 0;
    transform: translateX(0);
}

/* Arrow untuk tooltip (optional tapi cantik) */
.learn-tooltip::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--dark-color);
}

.learn-tooltip.align-left::before {
    left: 20px;
    transform: none;
}

.learn-tooltip.align-right::before {
    left: auto;
    right: 20px;
    transform: none;
}

.learn-tooltip-content {
    text-align: left;
}

.learn-tooltip-type {
    direction: ltr !important;
    text-align: left !important;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid #495057;
    font-size: 12px;
    color: #ffc107;
}

.learn-tooltip-forms {
    direction: rtl;
    font-family: 'Amiri', serif;
    font-size: 15px;
    text-align: right;
    margin-top: 8px;
    padding: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    line-height: 1.8;
}

.learn-tooltip-irab {
    direction: rtl;
    font-family: 'Amiri', serif;
    font-size: 16px;
    text-align: right;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #495057;
}

.learn-tooltip-title {
    font-weight: 600;
    color: var(--warning-color);
}

/* === Practice Mode Styles === */
.mode-latihan .learn-tooltip,
.mode-latihan .translate-btn {
    display: none !important;
}

.mode-latihan .interactive-word {
    border-bottom: 2px dotted var(--accent-color) !important;
    padding-bottom: 1px !important;
}

.mode-latihan .interactive-word.answered {
    border-bottom-color: var(--success-color) !important;
    color: var(--dark-color) !important;
    background-color: #e9f5ec !important;
    cursor: default !important;
}

/* FIXED: Quiz Tooltip Styles */
#quiz-tooltip {
    display: none; /* PERUBAHAN: Guna display:none untuk konsistensi */
    position: absolute;
    background-color: var(--white-color);
    color: var(--dark-color);
    padding: 16px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    border: 1px solid var(--border-color);
    z-index: 10000; /* PERUBAHAN: Lebih tinggi dari learn-tooltip */
    width: 300px;
    font-family: 'Inter', sans-serif;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

#quiz-tooltip.show {
    display: block; /* PERUBAHAN: Mesti ada display:block */
    opacity: 1;
}

#quiz-tooltip .quiz-close-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px !important;
    height: 28px !important;
    border: none !important;
    background-color: transparent !important;
    color: #6c757d !important;
    font-size: 20px !important;
    line-height: 1 !important;
    cursor: pointer !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 !important;
    transition: all 0.2s ease;
}

#quiz-tooltip .quiz-close-btn:hover {
    background-color: #f8f9fa !important;
    color: var(--danger-color) !important;
    transform: rotate(90deg);
}

#quiz-tooltip .quiz-instruction {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 12px 0;
    text-align: center;
}

#quiz-tooltip h3 {
    font-family: 'Amiri', serif;
    font-size: 28px;
    margin-top: 0;
    margin-bottom: 16px;
    color: var(--dark-color);
    direction: rtl;
    text-align: center;
}

.quiz-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 12px;
}

.quiz-options button {
    padding: 12px !important;
    font-family: 'Amiri', serif !important;
    font-size: 22px !important;
    font-weight: bold !important;
    border: 2px solid var(--border-color) !important;
    border-radius: 10px !important;
    cursor: pointer !important;
    transition: all 0.2s ease;
    background-color: var(--light-color) !important;
    color: var(--dark-color) !important;
    direction: rtl !important;
    line-height: 1.5 !important;
}

.quiz-options button:hover:not(:disabled) {
    border-color: var(--accent-color) !important;
    background-color: #eaf2ff !important;
    transform: translateY(-2px);
}

.quiz-options button:disabled {
    cursor: not-allowed !important;
    opacity: 0.6;
}

.quiz-options button.correct-answer {
    background-color: #d4edda !important;
    border-color: var(--success-color) !important;
}

.quiz-options button.wrong-answer {
    background-color: #f8d7da !important;
    border-color: var(--danger-color) !important;
}

#quiz-feedback,
#quiz-explanation {
    display: none;
    margin-top: 12px;
}

#quiz-feedback {
    font-weight: 600;
    font-size: 16px;
    padding: 8px;
    border-radius: 8px;
}

#quiz-feedback.correct {
    color: var(--success-color);
    background-color: #d4edda;
}

#quiz-feedback.wrong {
    color: var(--danger-color);
    background-color: #f8d7da;
}

#quiz-explanation {
    padding: 10px;
    background-color: #e9ecef;
    border-radius: 8px;
    font-size: 13px;
    color: #495057;
    text-align: left;
    line-height: 1.5;
}

/* Translation Modal Styles */
.modal {
    display: none; /* PERUBAHAN: Guna display:none */
    position: fixed;
    z-index: 100000; /* Paling tinggi */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.visible {
    display: flex; /* PERUBAHAN: Guna flex bila visible */
    opacity: 1;
}

.modal-content {
    background-color: var(--white-color);
    padding: 24px;
    border-radius: 20px;
    width: 90%;
    max-width: 420px;
    text-align: center;
    transform: scale(0.95);
    transition: transform 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.modal.visible .modal-content {
    transform: scale(1);
}

.modal-close-btn {
    margin-top: 20px !important;
    width: 100% !important;
    padding: 12px !important;
    border: none !important;
    border-radius: 12px !important;
    background-color: var(--primary-color) !important;
    color: var(--white-color) !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    line-height: 1.5 !important;
    transition: background-color 0.2s;
}

.modal-close-btn:hover {
    background-color: #243a56 !important;
}

#translation-modal .modal-content {
    text-align: left;
}

#translation-text {
    font-size: 16px;
    line-height: 1.7;
    color: #495057;
    margin: 12px 0;
}

#translation-text-arabic {
    font-family: 'Amiri', serif;
    font-size: 20px;
    direction: rtl;
    text-align: right;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--dark-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
    }

    .content-container {
        font-size: 20px;
        line-height: 2.5;
    }

    .learn-tooltip {
        width: 220px;
        font-size: 13px;
    }

    #quiz-tooltip {
        width: 280px;
    }

    .quiz-options button {
        font-size: 20px !important;
    }
}

/* Print styles */
@media print {
    .header,
    .practice-controls,
    .translate-btn,
    .learn-tooltip,
    #quiz-tooltip,
    .modal {
        display: none !important;
    }

    .interactive-word {
        border-bottom: none !important;
        background-color: transparent !important;
    }
}