/* ========================================
   STYLE MATERI - LABORATORIUM VIRTUAL SD
   Author: Frissenda Septrianur Marinda Karno Putri - 220611100069
   ======================================== */

/* ========================================
   HEADER STYLES
   ======================================== */
.materi-header {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.title h1 {
    color: #2c5530;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.8);
}

.title p {
    color: #2c5530;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.back-btn {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.9), rgba(46, 125, 50, 0.9));
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.back-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    background: linear-gradient(135deg, rgba(102, 187, 106, 0.95), rgba(56, 142, 60, 0.95));
}

/* ========================================
   CONTAINER STYLES
   ======================================== */
.materi-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* ========================================
   TAB NAVIGATION STYLES
   ======================================== */
.tab-navigation {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Calibri', 'Arial', sans-serif;
    font-size: 0.95rem;
    color: #2c5530;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.tab-btn.active {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.9), rgba(46, 125, 50, 0.9));
    border-color: rgba(76, 175, 80, 1);
    color: white;
    font-weight: bold;
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.4);
}

.tab-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    font-weight: bold;
    font-size: 0.9rem;
}

.tab-btn.active .tab-number {
    background: rgba(255, 255, 255, 0.9);
    color: #2c5530;
}

.tab-label {
    font-weight: 500;
}

.scroll-nav,
.slide-indicators {
    display: none;
}

/* ========================================
   CONTENT SECTION STYLES
   ======================================== */
.materi-card {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: block;
    overflow-x: visible;
}

.materi-section {
    display: none;
    width: 100%;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: fadeIn 0.5s ease;
}

.materi-section.active {
    display: block;
}

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

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}

.section-icon {
    font-size: 2rem;
}

.section-header h2 {
    color: #2c5530;
    font-size: 1.6rem;
    text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.8);
}

/* Definition Box */
.definition {
    background: rgba(255, 255, 255, 0.3);
    padding: 1.5rem;
    border-radius: 15px;
    border-left: 5px solid #4caf50;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #2c5530;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.concept-box {
    background: rgba(76, 175, 80, 0.1);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.concept-box h3 {
    color: #2c5530;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.concept-list {
    list-style: none;
    padding: 0;
}

.concept-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
}

.list-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.concept-list li strong {
    color: #2c5530;
    display: block;
    margin-bottom: 0.3rem;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.concept-list li p {
    color: #2c5530;
    margin: 0;
    opacity: 0.9;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

/* Jenis Grid */
.jenis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.jenis-card {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all 0.3s ease;
}

.jenis-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.4);
}

.jenis-header {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.9), rgba(46, 125, 50, 0.9));
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.jenis-icon {
    font-size: 2rem;
}

.jenis-header h3 {
    color: white;
    font-size: 1.2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.jenis-body {
    padding: 1rem;
}

.jenis-body ul {
    margin: 0;
    padding-left: 1.2rem;
    color: #2c5530;
}

.jenis-body li {
    margin-bottom: 0.5rem;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.jenis-def {
    color: #2c5530;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 0.8rem;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.contoh-box, .sifat-box {
    background: rgba(255, 255, 255, 0.5);
    padding: 0.8rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.contoh-box strong, .sifat-box strong {
    color: #2c5530;
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.contoh-box ul {
    margin: 0;
    padding-left: 1.2rem;
    color: #2c5530;
    font-size: 0.85rem;
}

.contoh-box li {
    margin-bottom: 0.2rem;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.sifat-box p {
    margin: 0;
    color: #2c5530;
    font-size: 0.9rem;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

/* ========================================
   QUIZ STYLES - ALL QUESTIONS CONSISTENT
   ======================================== */
.soal-container {
    background: rgba(255, 255, 255, 0.3);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.soal-info {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.soal-info p {
    color: #2c5530;
    font-size: 1rem;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.soal-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Soal Item - Consistent for ALL questions (1-15) */
.soal-item {
    background: rgba(255, 255, 255, 0.5);
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.soal-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.9), rgba(46, 125, 50, 0.9));
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    font-weight: bold;
    font-size: 1rem;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
}

.soal-text p {
    color: #2c5530;
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

.soal-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.5rem;
    width: 100%;
}

.option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.option:hover {
    background: rgba(76, 175, 80, 0.2);
    transform: translateX(3px);
}

.option input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #4caf50;
    flex-shrink: 0;
}

.option span {
    color: #2c5530;
    font-weight: 500;
    font-size: 0.9rem;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.feedback {
    margin-top: 0.5rem;
    padding: 0.6rem;
    border-radius: 6px;
    font-weight: bold;
    font-size: 0.85rem;
    display: none;
}

.feedback:not(:empty) {
    display: block;
}

.feedback.correct {
    background: rgba(76, 175, 80, 0.2);
    color: #2e7d32;
    border: 1px solid #4caf50;
}

.feedback.incorrect {
    background: rgba(244, 67, 54, 0.2);
    color: #c62828;
    border: 1px solid #f44336;
}

.feedback.warning {
    background: rgba(255, 152, 0, 0.2);
    color: #e65100;
    border: 1px solid #ff9800;
}

/* Soal Actions */
.soal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid rgba(255, 255, 255, 0.3);
}

.check-btn, .reset-btn {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.check-btn {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.9), rgba(46, 125, 50, 0.9));
    color: white;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.check-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    background: linear-gradient(135deg, rgba(102, 187, 106, 0.95), rgba(56, 142, 60, 0.95));
}

.reset-btn {
    background: rgba(255, 255, 255, 0.3);
    color: #2c5530;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.reset-btn:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

/* Hasil Container */
.hasil-container {
    display: none;
    margin-top: 1.5rem;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hasil-box {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.9), rgba(46, 125, 50, 0.9));
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    color: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.hasil-box h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.score-display {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.8rem;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.3);
}

#scoreMessage {
    font-size: 1rem;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* ========================================
   BOTTOM NAVIGATION
   ======================================== */
.bottom-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 2px solid rgba(255, 255, 255, 0.3);
}

.nav-btn {
    flex: 1;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.prev-btn {
    background: rgba(255, 255, 255, 0.3);
    color: #2c5530;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.prev-btn:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

.next-btn {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.9), rgba(46, 125, 50, 0.9));
    color: white;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.next-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    background: linear-gradient(135deg, rgba(102, 187, 106, 0.95), rgba(56, 142, 60, 0.95));
}

/* ========================================
   FOOTER
   ======================================== */
.materi-footer {
    background: rgba(255, 255, 255, 0.2);
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.materi-footer p {
    color: #2c5530;
    font-size: 0.9rem;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.materi-footer p:last-child {
    margin-top: 0.5rem;
    opacity: 0.8;
}

/* ========================================
   BACKGROUND ELEMENTS
   ======================================== */
.background, .science-elements, .element {
    display: none;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .materi-container {
        padding: 1rem;
    }

    .materi-card {
        padding: 1rem;
    }

    .materi-section {
        padding: 1rem;
    }

    .section-header h2 {
        font-size: 1.4rem;
    }

    .tab-navigation {
        gap: 0.5rem;
        padding: 0.8rem;
    }

    .tab-btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }

    .tab-number {
        width: 24px;
        height: 24px;
        font-size: 0.8rem;
    }

    .tab-label {
        font-size: 0.8rem;
    }

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

    .soal-options {
        grid-template-columns: 1fr;
    }

    .soal-actions {
        flex-direction: column;
    }

    .check-btn, .reset-btn {
        width: 100%;
    }

    .bottom-nav {
        flex-direction: column;
    }

    .nav-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .title h1 {
        font-size: 1.4rem;
    }

    .section-header h2 {
        font-size: 1.2rem;
    }

    .jenis-header h3 {
        font-size: 1.1rem;
    }

    .score-display {
        font-size: 2rem;
    }

    .tab-navigation {
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding: 0.8rem;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .tab-navigation::-webkit-scrollbar {
        display: none;
    }

    .tab-btn {
        flex-shrink: 0;
        padding: 0.5rem 0.8rem;
    }

    .tab-label {
        display: none;
    }

    .tab-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

    .soal-item {
        padding: 0.8rem;
    }

    .soal-number {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }

    .option {
        padding: 0.6rem;
    }

    .option span {
        font-size: 0.85rem;
    }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

.loading {
    opacity: 0.5;
    pointer-events: none;
}

@media print {
    .materi-header,
    .control-panel,
    .back-btn,
    .bottom-nav {
        display: none;
    }

    .materi-card {
        box-shadow: none;
        border: 1px solid #000;
    }
}