/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    background-attachment: fixed;
    min-height: 100vh;
    padding: 10px;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
}

/* CONTAINER */
.container {
    width: 100%;
    max-width: 800px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* HEADER */
.header {
    background: linear-gradient(135deg, #0d47a1 0%, #1a73e8 100%);
    color: white;
    padding: 20px 15px;
    text-align: center;
    flex-shrink: 0;
    position: relative;
    z-index: 100;
}

.header h1 {
    font-size: 1.4rem;
    margin-bottom: 5px;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.header p {
    font-size: 0.85rem;
    opacity: 0.9;
}

/* SCREENS SYSTEM */
.screen {
    display: none;
    flex: 1;
    flex-direction: column;
    padding: 20px;
    animation: fadeIn 0.3s ease-in-out;
    overflow: hidden;
}

.screen.active {
    display: flex;
}

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

/* LOGIN SCREEN */
.warning-box {
    background: #fff8e1;
    border-left: 4px solid #ffa000;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 25px;
    box-shadow: 0 2px 8px rgba(255, 160, 0, 0.1);
}

.warning-box h4 {
    color: #ff6f00;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.warning-box p {
    margin: 5px 0;
    color: #5d4037;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #1a73e8;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 14px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    background: white;
    transition: all 0.3s;
    color: #333;
}

.form-control:focus {
    outline: none;
    border-color: #1a73e8;
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231a73e8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
    padding-right: 40px;
}

.error-box {
    background: #ffebee;
    border-left: 4px solid #f44336;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    color: #c62828;
    display: none;
    font-size: 0.9rem;
}

/* NOTIFICATION STYLES */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 10000;
    animation: slideIn 0.3s ease-out;
    border-left: 4px solid;
    max-width: 400px;
}

.notification-error {
    background: #ffebee;
    color: #c62828;
    border-left-color: #f44336;
}

.notification-success {
    background: #e8f5e9;
    color: #2e7d32;
    border-left-color: #4caf50;
}

.notification-info {
    background: #e3f2fd;
    color: #1565c0;
    border-left-color: #2196f3;
}

.notification-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 0;
    margin-left: auto;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.notification-close:hover {
    opacity: 1;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* EXAM HEADER (Perbaikan layout - Progress & Timer sejajar) */
.exam-header {
    background: #f8f9fa;
    padding: 10px 15px;
    border-bottom: 2px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    position: sticky;
    top: 0;
    z-index: 100;
    flex-wrap: nowrap;
}

.exam-info {
    flex: 1;
    text-align: center;
    color: #555;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 200px;
}

.exam-progress {
    font-weight: 700;
    color: #1a73e8;
    background: #e3f2fd;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    white-space: nowrap;
    min-width: 60px;
    text-align: center;
    order: 1;
}

.exam-timer {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
    white-space: nowrap;
    min-width: 80px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(26, 115, 232, 0.2);
    order: 3;
}

/* QUESTION AREA (Gambar di bawah soal, di atas pilihan) */
.question-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #fff;
    display: flex;
    flex-direction: column;
}

.question-text {
    font-size: 1.15rem;
    line-height: 1.6;
    margin-bottom: 20px;
    color: #2c3e50;
    font-weight: 500;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
    order: 1;
}

.question-image {
    max-width: 100%;
    max-height: 300px;
    margin: 10px auto;
    display: block;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    order: 2;
}

.question-image[style*="display: none"] {
    display: none !important;
}

/* OPTIONS (Di bawah gambar) */
.options-container {
    order: 3;
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 20px;
    margin-bottom: 30px;
}

.option {
    padding: 18px 20px;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    gap: 18px;
    -webkit-user-select: none;
    user-select: none;
}

.option:hover:not(.selected) {
    border-color: #1a73e8;
    background: #f8fbff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.1);
}

.option.selected {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border-color: #1a73e8;
    box-shadow: 0 6px 20px rgba(26, 115, 232, 0.2);
    transform: translateY(-1px);
}

.option-letter {
    width: 38px;
    height: 38px;
    min-width: 38px;
    border-radius: 50%;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #666;
    font-size: 1rem;
    border: 2px solid transparent;
    transition: all 0.25s;
}

.option.selected .option-letter {
    background: #1a73e8;
    color: white;
    border-color: #0d47a1;
    transform: scale(1.1);
}

.option-text {
    flex: 1;
    font-size: 1.05rem;
    line-height: 1.5;
    color: #333;
    -webkit-user-select: text;
    user-select: text;
}

.option.selected .option-text {
    color: #0d47a1;
    font-weight: 600;
}

/* NAVIGATION FOOTER */
.question-nav {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    padding: 20px;
    background: #f8f9fa;
    border-top: 2px solid #e0e0e0;
    position: sticky;
    bottom: 0;
    z-index: 50;
}

/* BUTTONS */
.btn {
    padding: 16px 24px;
    border-radius: 12px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
    min-height: 50px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary { 
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white; 
}

.btn-primary:hover { 
    background: linear-gradient(135deg, #1557b0 0%, #0b3d91 100%);
    box-shadow: 0 6px 20px rgba(26, 115, 232, 0.3);
}

.btn-secondary { 
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    color: white; 
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #5a6268 0%, #3d4348 100%);
    box-shadow: 0 6px 20px rgba(108, 117, 125, 0.3);
}

.btn-success { 
    background: linear-gradient(135deg, #27ae60 0%, #219653 100%);
    color: white; 
}

.btn-success:hover {
    background: linear-gradient(135deg, #219653 0%, #1e874b 100%);
    box-shadow: 0 6px 20px rgba(39, 174, 96, 0.3);
}

.btn-danger { 
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white; 
}

.btn-danger:hover {
    background: linear-gradient(135deg, #c0392b 0%, #a93226 100%);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.3);
}

.btn:disabled {
    background: #bdc3c7 !important;
    cursor: not-allowed;
    opacity: 0.7;
    transform: none !important;
    box-shadow: none !important;
}

.nav-btn {
    flex: 1;
    padding: 16px;
    font-size: 0.9rem;
}

/* QUESTION GRID (Nomor Soal) */
.question-grid-container {
    padding: 20px;
    background: #f8f9fa;
    border-top: 2px solid #e0e0e0;
}

.question-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
    gap: 10px;
    max-height: 200px;
    overflow-y: auto;
    padding: 10px;
}

.question-grid::-webkit-scrollbar {
    width: 6px;
}

.question-grid::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.grid-item {
    aspect-ratio: 1;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    background: white;
    border: 2px solid #ddd;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    color: #555;
}

.grid-item:hover {
    border-color: #1a73e8;
    background: #e3f2fd;
    transform: translateY(-2px);
}

.grid-item.answered { 
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%); 
    color: white; 
    border-color: #0d47a1;
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.grid-item.current { 
    background: #ff9800; 
    color: white; 
    border-color: #ff9800;
    transform: scale(1.1);
    box-shadow: 0 4px 16px rgba(255, 152, 0, 0.4);
}

/* RESULT SCREEN (Layout sejajar, tanpa nilai) */
.result-container {
    text-align: center;
    padding: 30px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.result-icon {
    font-size: 5rem;
    color: #27ae60;
    margin-bottom: 30px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.result-title {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 30px;
    font-weight: 600;
}

.result-details {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    margin: 0 auto 30px;
    max-width: 600px;
    width: 100%;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* Layout sejajar kiri-kanan */
.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid #e0e0e0;
    font-size: 1rem;
    min-height: 44px;
}

.result-row:last-child {
    border-bottom: none;
}

.result-label {
    font-weight: 600;
    color: #555;
    text-align: left;
    flex: 1;
}

.result-value {
    font-weight: 600;
    color: #1a73e8;
    text-align: right;
    flex: 1;
    padding-left: 10px;
}

/* PENUTUP SCREEN (Tanpa frame) */
.penutup-container {
    background: none;
    border-radius: 0;
    padding: 0;
    text-align: center;
    border-left: none;
    margin: 0;
    max-width: 100%;
    box-shadow: none;
}

.penutup-message {
    font-size: 1.1rem;
    line-height: 1.5;
    color: #333;
    margin-bottom: 20px;
}

.tab-switch-info {
    background: #fff3e0;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    border-left: 4px solid #ff9800;
    color: #e65100;
}

/* LOADING SCREEN */
.loading-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

.loading-spinner {
    width: 70px;
    height: 70px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #1a73e8;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 25px;
}

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

.loading-container h2 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.loading-container p {
    color: #666;
    text-align: center;
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 20px 15px;
    color: #666;
    font-size: 0.85rem;
    border-top: 1px solid #e0e0e0;
    background: #f8f9fa;
    flex-shrink: 0;
}

.footer p:first-child {
    font-weight: 500;
    margin-bottom: 5px;
}

.footer p:last-child {
    font-size: 0.75rem;
    opacity: 0.7;
}

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

.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

/* No cheat classes */
.no-select,
.disable-selection {
    -webkit-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
    user-select: none !important;
    -webkit-touch-callout: none !important;
}

.no-context {
    -webkit-tap-highlight-color: transparent !important;
}

.exam-mode *:focus {
    outline: none !important;
}

/* Print prevention */
@media print {
    body * {
        visibility: hidden;
    }
    
    .container, .container * {
        visibility: visible;
    }
    
    .container {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        box-shadow: none;
        border-radius: 0;
    }
    
    .btn, .question-nav, .exam-timer {
        display: none !important;
    }
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .container {
        max-width: 100%;
        min-height: 100vh;
        border-radius: 0;
        box-shadow: none;
    }
    
    body {
        padding: 0;
    }
    
    .header {
        padding: 15px;
    }
    
    .header h1 {
        font-size: 1.2rem;
    }
    
    .exam-header {
        padding: 10px;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .exam-info {
        order: 1;
        min-width: 100%;
        font-size: 0.8rem;
        text-align: center;
    }
    
    .exam-progress,
    .exam-timer {
        order: 2;
        padding: 5px 10px;
        font-size: 0.8rem;
        min-width: auto;
    }
    
    .question-container {
        padding: 15px;
    }
    
    .question-text {
        font-size: 1.05rem;
        margin-bottom: 15px;
    }
    
    .question-image {
        max-height: 250px;
    }
    
    .option {
        padding: 14px 16px;
        gap: 12px;
    }
    
    .option-letter {
        width: 34px;
        height: 34px;
        font-size: 0.9rem;
    }
    
    .option-text {
        font-size: 1rem;
    }
    
    .question-nav {
        padding: 15px;
        flex-wrap: wrap;
    }
    
    .nav-btn {
        flex: 1 0 calc(50% - 8px);
        margin-bottom: 8px;
    }
    
    .btn {
        padding: 14px 16px;
        font-size: 0.9rem;
    }
    
    .question-grid {
        grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
        gap: 8px;
    }
    
    .grid-item {
        font-size: 0.85rem;
    }
    
    .result-title {
        font-size: 1.6rem;
    }
    
    .result-details {
        padding: 20px;
    }
    
    .result-row {
        font-size: 0.95rem;
        padding: 12px 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .result-label,
    .result-value {
        text-align: left;
        width: 100%;
    }
    
    .result-value {
        padding-left: 0;
        padding-top: 2px;
    }
}

@media (max-width: 480px) {
    .screen {
        padding: 15px;
    }
    
    .question-text {
        font-size: 1rem;
    }
    
    .option {
        padding: 12px 14px;
        gap: 10px;
    }
    
    .option-letter {
        width: 32px;
        height: 32px;
        min-width: 32px;
        font-size: 0.85rem;
    }
    
    .option-text {
        font-size: 0.95rem;
    }
    
    .question-grid {
        grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
        gap: 6px;
    }
    
    .grid-item {
        font-size: 0.8rem;
    }
    
    .btn {
        padding: 12px 14px;
        font-size: 0.85rem;
        min-height: 45px;
    }
    
    .result-icon {
        font-size: 4rem;
    }
    
    .result-title {
        font-size: 1.4rem;
    }
    
    .result-details {
        padding: 15px;
    }
    
    .result-row {
        font-size: 0.9rem;
    }
    
    .notification {
        max-width: 90%;
        left: 5%;
        right: 5%;
    }
}

/* Tablet landscape */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        max-width: 90%;
    }
}

/* Very small devices */
@media (max-width: 320px) {
    .exam-progress,
    .exam-timer {
        padding: 4px 8px;
        font-size: 0.75rem;
    }
    
    .question-grid {
        grid-template-columns: repeat(auto-fill, minmax(34px, 1fr));
    }
    
    .grid-item {
        font-size: 0.75rem;
    }
}
    /* TAMBAHKAN DI ATURAN CSS YANG SUDAH ADA */

/* Limit Info Styling */
.limit-info {
    background: rgba(26, 115, 232, 0.1);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    color: #1a73e8;
    border: 1px solid rgba(26, 115, 232, 0.2);
    text-align: center;
    white-space: nowrap;
}

#timer-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

/* Result Screen Updates */
.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #e0e0e0;
}

.result-label {
    font-weight: 600;
    color: #555;
    text-align: left;
    flex: 1;
}

.result-value {
    font-weight: 500;
    color: #1a73e8;
    text-align: right;
    flex: 1;
}

/* Update untuk responsive result row */
@media (max-width: 768px) {
    .result-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .result-value {
        text-align: left;
    }
}

/* Exam Header Adjustment */
.exam-timer {
    min-width: 80px;
}

/* Fix untuk layout exam info */
@media (max-width: 768px) {
    .exam-info {
        order: 1;
        width: 100%;
        margin-bottom: 8px;
        text-align: center;
    }
    
    .exam-progress {
        order: 2;
    }
    
    .exam-timer {
        order: 3;
    }
}