/* Microsoft AI-901 Simulator CSS Design System */

:root {
    /* Color Palette */
    --bg-primary: hsl(222, 26%, 9%);
    --bg-secondary: hsl(222, 20%, 13%);
    --bg-tertiary: hsl(222, 18%, 18%);
    --bg-terminal: hsl(222, 35%, 6%);
    
    --accent-primary: hsl(207, 100%, 41%); /* Microsoft Azure Blue */
    --accent-hover: hsl(207, 100%, 50%);
    --accent-glow: hsla(207, 100%, 41%, 0.25);
    
    --text-primary: hsl(0, 0%, 95%);
    --text-secondary: hsl(222, 12%, 70%);
    --text-muted: hsl(222, 10%, 50%);
    
    --border-color: hsla(0, 0%, 100%, 0.08);
    --border-hover: hsla(207, 100%, 50%, 0.3);
    
    --success-color: hsl(142, 65%, 43%);
    --error-color: hsl(354, 70%, 50%);
    --warning-color: hsl(38, 92%, 50%);
    
    --easy-color: hsl(142, 65%, 43%);
    --medium-color: hsl(38, 92%, 50%);
    --hard-color: hsl(0, 72%, 50%);

    --font-primary: 'Outfit', sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 18px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Global Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* App Container Layout */
.app-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* View Panels Toggling */
.view-panel {
    display: none;
    flex-direction: column;
    flex-grow: 1;
    animation: fadeIn 0.4s ease-out;
}
.view-panel.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Helper Components */
.clean-list {
    list-style: none;
}
.uppercase { text-transform: uppercase; }

/* ================= HEADER STYLE ================= */
.hero-header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, hsla(207, 100%, 41%, 0.1) 0%, rgba(0,0,0,0) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    margin-bottom: 30px;
}

.azure-logo {
    font-size: 3rem;
    color: var(--accent-hover);
    text-shadow: 0 0 15px var(--accent-glow);
    margin-bottom: 10px;
    animation: logoGlow 3s infinite ease-in-out;
}

@keyframes logoGlow {
    0%, 100% { transform: scale(1); opacity: 0.92; }
    50% { transform: scale(1.05); opacity: 1; }
}

h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 300;
}

/* ================= DASHBOARD VIEW ================= */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

@media (max-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.info-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px;
    box-shadow: var(--shadow-md);
    transition: transform 0.2s, border-color 0.2s;
}

.info-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-hover);
}

.info-card h2 {
    font-size: 1.3rem;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    color: var(--accent-hover);
}

.rules-card ul li {
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
    color: var(--text-secondary);
}

.rules-card ul li::before {
    content: "✦";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

/* CLI command table */
.cli-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.cli-table th, .cli-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.cli-table th {
    color: var(--text-secondary);
    font-weight: 600;
}

.cmd-code {
    font-family: var(--font-mono);
    color: var(--warning-color);
    background-color: var(--bg-primary);
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
}

/* History table */
.history-section {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px;
    margin-bottom: 30px;
    content-visibility: auto;
    contain-intrinsic-size: auto 260px;
}

.history-section h2 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.table-scroll {
    width: 100%;
    overflow-x: auto;
}

.history-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.history-table th, .history-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.history-table th {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
}

.no-history {
    text-align: center;
    color: var(--text-muted);
    padding: 30px !important;
    font-style: italic;
}

/* Badges */
.badge-status {
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}
.status-pass { background-color: rgba(20, 180, 90, 0.15); color: var(--success-color); border: 1px solid var(--success-color); }
.status-fail { background-color: rgba(220, 50, 50, 0.15); color: var(--error-color); border: 1px solid var(--error-color); }

/* Buttons Panels */
.actions-panel {
    display: flex;
    justify-content: center;
    padding: 20px 0;
}

.action-btn {
    font-family: var(--font-primary);
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.large-btn {
    padding: 16px 40px;
    font-size: 1.2rem;
    border-radius: var(--border-radius-md);
}

.medium-btn {
    padding: 10px 24px;
    font-size: 1rem;
}

.primary-btn {
    background-color: var(--accent-primary);
    color: var(--text-primary);
}

.primary-btn:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: scale(1.02);
}

.secondary-btn {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.secondary-btn:hover {
    background-color: var(--bg-secondary);
    border-color: var(--text-secondary);
}

.ghost-btn {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid transparent;
}

.ghost-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

/* ================= EXAM PLAYER VIEW ================= */
.exam-header {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 15px 20px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
    .exam-header {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
}

.exam-title-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.exam-code-tag {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--accent-hover);
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    font-weight: 700;
    font-size: 0.9rem;
}

.exam-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
}

.exam-progress-container {
    flex-grow: 1;
    max-width: 450px;
    margin-left: 20px;
}

@media (max-width: 768px) {
    .exam-progress-container {
        max-width: 100%;
        margin-left: 0;
    }
}

.progress-details {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

#exam-timer {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-weight: 600;
}

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background-color: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--accent-primary);
    border-radius: 4px;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* Shimmer sweep animation on progress bar */
.progress-bar-fill::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmerSweep 2.5s infinite ease-in-out;
}

@keyframes shimmerSweep {
    0%   { transform: translateX(-150%); }
    100% { transform: translateX(300%); }
}

.progress-bar-fill.accent-fill {
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-hover));
}

.progress-bar-fill.easy-fill { background-color: var(--easy-color); }
.progress-bar-fill.medium-fill { background-color: var(--medium-color); }
.progress-bar-fill.hard-fill { background-color: var(--hard-color); }

/* ========== TIMER CRITICAL STATE ========== */
#exam-timer.timer-critical {
    color: var(--error-color) !important;
    animation: timerPulse 1s infinite ease-in-out;
}

@keyframes timerPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.6; transform: scale(1.08); }
}

/* ========== QUESTION TYPE BADGE ========== */
.type-badge {
    background-color: hsla(207, 100%, 41%, 0.12);
    border: 1px solid var(--accent-primary);
    color: var(--accent-hover);
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

/* Exam Layout Split Panel */
.exam-layout {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* Sidebar Drawer style */
.sidebar-drawer {
    width: 260px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 15px;
    display: flex;
    flex-direction: column;
    transition: width 0.3s, padding 0.3s, opacity 0.3s;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.sidebar-drawer.closed {
    width: 0;
    padding: 0;
    opacity: 0;
    overflow: hidden;
    border: none;
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.drawer-header h3 {
    font-size: 1.05rem;
    font-weight: 600;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px;
    border-radius: var(--border-radius-sm);
    transition: background-color 0.2s;
}

.icon-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.matrix-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.badge {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.badge-unanswered { background-color: var(--bg-tertiary); border: 1px solid var(--border-color); }
.badge-answered { background-color: var(--accent-primary); }
.badge-marked { background-color: var(--warning-color); }

.question-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    overflow-y: auto;
    max-height: 400px;
    padding-right: 2px;
}

.grid-btn {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.85rem;
    aspect-ratio: 1;
    border: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
}

.grid-btn:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.grid-btn.active {
    border-color: var(--accent-hover) !important;
    box-shadow: 0 0 8px var(--accent-glow);
    color: var(--text-primary) !important;
}

.grid-btn.answered {
    background-color: var(--accent-primary);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.grid-btn.marked {
    border-color: var(--warning-color) !important;
    box-shadow: 0 0 6px rgba(230, 160, 10, 0.3);
}

.grid-btn.marked::after {
    content: "⚐";
    position: absolute;
    top: 1px;
    right: 3px;
    font-size: 0.65rem;
    color: var(--warning-color);
}

/* Question Workspace */
.question-workspace {
    flex-grow: 1;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 30px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
}

.question-meta {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.meta-badge {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.meta-badge.info-badge {
    color: var(--accent-hover);
}

.scenario-card {
    background-color: var(--bg-primary);
    border-left: 4px solid var(--accent-primary);
    border-radius: var(--border-radius-sm);
    padding: 15px 20px;
    margin-bottom: 20px;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.card-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-hover);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

#q-scenario-text {
    white-space: pre-wrap;
    font-family: inherit;
}

.question-prompt h3 {
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 25px;
}

/* Answers Dynamic Rendering styles */
.answers-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Radio and Checkbox Styling */
.option-label {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    font-size: 0.95rem;
    position: relative;
    user-select: none;
}

.option-label:hover {
    border-color: var(--border-hover);
    background-color: var(--bg-secondary);
}

.option-label input[type="radio"],
.option-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.option-label.selected {
    border-color: var(--accent-primary);
    background-color: hsla(207, 100%, 41%, 0.05);
}

/* Custom Selector Circles & Checkboxes */
.radio-custom, .checkbox-custom {
    height: 18px;
    width: 18px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    margin-right: 15px;
    display: inline-block;
    flex-shrink: 0;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.radio-custom { border-radius: 50%; }
.checkbox-custom { border-radius: var(--border-radius-sm); }

.option-label:hover .radio-custom,
.option-label:hover .checkbox-custom {
    border-color: var(--text-secondary);
}

.option-label.selected .radio-custom {
    border-color: var(--accent-primary);
    background-color: var(--accent-primary);
    box-shadow: inset 0 0 0 3px var(--bg-tertiary);
}

.option-label.selected .checkbox-custom {
    border-color: var(--accent-primary);
    background-color: var(--accent-primary);
    box-shadow: inset 0 0 0 3px var(--bg-tertiary);
}

/* Matrix Table Styling */
.matrix-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.matrix-table th, .matrix-table td {
    padding: 12px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.matrix-table th:first-child, .matrix-table td:first-child {
    text-align: left;
    width: 60%;
    color: var(--text-secondary);
}

.matrix-table th {
    font-weight: 600;
}

.matrix-radio {
    cursor: pointer;
    accent-color: var(--accent-primary);
    width: 18px;
    height: 18px;
}

/* Hotspot/Inline Dropdowns Styling */
.hotspot-paragraph {
    line-height: 2.2;
    font-size: 1.05rem;
    color: var(--text-secondary);
}

.hotspot-code-block {
    background-color: var(--bg-terminal);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    padding: 20px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    white-space: pre-wrap; /* Preserves newlines and spaces */
    line-height: 1.8;
    overflow-x: auto;
}

.hotspot-select {
    font-family: var(--font-primary);
    font-weight: 600;
    padding: 4px 10px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
    margin: 0 5px;
}

.hotspot-select:hover, .hotspot-select:focus {
    border-color: var(--accent-primary);
}

/* Drag and Drop Simulation Styling */
.drag-drop-panel {
    display: flex;
    gap: 20px;
    margin-top: 10px;
}

@media (max-width: 768px) {
    .drag-drop-panel {
        flex-direction: column;
    }
}

.draggable-items-container {
    width: 35%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.draggable-items-container h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
}

.drag-item {
    padding: 10px 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: grab;
    user-select: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: transform 0.1s, border-color 0.1s;
    text-align: center;
}

.drag-item:active { cursor: grabbing; }
.drag-item:hover { border-color: var(--text-secondary); }

.drag-targets-container {
    width: 65%;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.target-row {
    display: flex;
    align-items: center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 10px 15px;
    gap: 15px;
}

.target-label {
    flex-grow: 1;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.drop-zone {
    width: 180px;
    min-height: 42px;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-primary);
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    padding: 4px;
}

.drop-zone.hover {
    border-color: var(--accent-primary);
    background-color: var(--accent-glow);
}

.drop-zone .drag-item {
    width: 100%;
    cursor: grab;
}

/* ================= CONTROLS FOOTER ================= */
.exam-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    margin-bottom: 15px;
    box-shadow: var(--shadow-sm);
}

@media (max-width: 500px) {
    .exam-footer {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

@media (max-width: 500px) {
    .nav-controls {
        justify-content: space-between;
    }
}

.control-btn {
    font-family: var(--font-primary);
    font-weight: 600;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.outline-btn {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.outline-btn:hover {
    background-color: var(--bg-primary);
    border-color: var(--text-secondary);
}

.review-checkbox-label {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.review-checkbox-label input[type="checkbox"] {
    margin-right: 8px;
    accent-color: var(--warning-color);
}

.submit-btn {
    background-color: var(--success-color);
    color: var(--text-primary);
}

.submit-btn:hover {
    background-color: hsl(142, 65%, 52%);
    transform: translateY(-1px);
    box-shadow: 0 0 10px rgba(20, 180, 90, 0.25);
}

/* Bottom Terminal Command Console */
.terminal-bar {
    background-color: var(--bg-terminal);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 8px 15px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.5);
}

.terminal-prompt {
    font-family: var(--font-mono);
    color: var(--success-color);
    font-size: 0.85rem;
    flex-shrink: 0;
}

#terminal-input {
    font-family: var(--font-mono);
    background: none;
    border: none;
    color: var(--text-primary);
    outline: none;
    font-size: 0.9rem;
    flex-grow: 1;
    width: 100%;
}

#terminal-input::placeholder {
    color: var(--text-muted);
}

.terminal-status-log {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px dashed rgba(255,255,255,0.05);
    padding-top: 4px;
}

/* ================= SYSTEM STATE DISPLAY ================= */
.system-state-footer {
    padding: 10px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    margin-top: 30px;
    text-transform: uppercase;
}

/* ================= DIALOG / MODAL STYLE ================= */
.submit-modal-dialog {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--border-radius-lg);
    padding: 35px;
    margin: auto;
    max-width: 480px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    outline: none;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
}

.submit-modal-dialog::backdrop {
    background: rgba(0, 0, 0, 0.72);
}

.modal-content h2 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.modal-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 20px;
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-btn {
    font-family: var(--font-primary);
    font-weight: 600;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.95rem;
}

.cancel-btn {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.cancel-btn:hover { background-color: var(--bg-primary); }

.confirm-btn {
    background-color: var(--error-color);
    color: var(--text-primary);
}
.confirm-btn:hover { background-color: hsl(354, 70%, 58%); }

/* ================= REPORT / ANALYTICS VIEW ================= */
.report-header {
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.session-id-label {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 6px;
}

/* Score Summary Gauge card */
.score-summary-card {
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, hsla(207, 100%, 41%, 0.12) 0%, rgba(0,0,0,0) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    gap: 40px;
    margin-bottom: 30px;
}

@media (max-width: 600px) {
    .score-summary-card {
        flex-direction: column;
        gap: 25px;
        text-align: center;
    }
}

.score-gauge-container {
    width: 140px;
    height: 140px;
    flex-shrink: 0;
}

.score-radial-gauge {
    width: 100%;
    height: 100%;
}

.gauge-bg {
    fill: none;
    stroke: var(--bg-tertiary);
    stroke-width: 8;
}

.gauge-fill {
    fill: none;
    stroke: var(--accent-hover);
    stroke-width: 8;
    stroke-linecap: round;
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
    transition: stroke-dashoffset 1s ease-out;
}

.gauge-score {
    fill: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-anchor: middle;
    font-family: var(--font-primary);
}

.gauge-max {
    fill: var(--text-secondary);
    font-size: 0.65rem;
    text-anchor: middle;
    font-family: var(--font-primary);
}

.score-metrics-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.result-badge {
    align-self: flex-start;
    padding: 6px 16px;
    border-radius: var(--border-radius-sm);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.5px;
}

@media (max-width: 600px) {
    .result-badge {
        align-self: center;
    }
}

.pass-badge { background-color: var(--success-color); color: var(--text-primary); }
.fail-badge { background-color: var(--error-color); color: var(--text-primary); }

.probability-box {
    margin-top: 10px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

@media (max-width: 500px) {
    .probability-box {
        grid-template-columns: 1fr;
    }
}

.probability-box .label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.probability-box h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent-hover);
}

/* Report Cards grid */
.report-grid-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

@media (max-width: 800px) {
    .report-grid-section {
        grid-template-columns: 1fr;
    }
}

.report-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px;
}

.report-card h2 {
    font-size: 1.15rem;
    margin-bottom: 18px;
    color: var(--text-primary);
}

.metric-progress-item {
    margin-bottom: 18px;
}

.progress-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

/* Advanced diagnostics styles */
.advanced-analytics-section,
.personalized-strategy-section,
.question-review-section {
    margin-bottom: 30px;
}

.advanced-analytics-section h2,
.personalized-strategy-section h2,
.question-review-section h2 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
}

.diagnostics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 850px) {
    .diagnostics-grid {
        grid-template-columns: 1fr;
    }
}

.diagnostics-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px;
}

.diagnostics-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.diagnostics-card .description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.full-width-card {
    grid-column: 1 / -1;
}

/* Service Confusion Pairs styling */
.confusion-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.confusion-pair-row {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--error-color);
    border-radius: var(--border-radius-sm);
    padding: 12px 15px;
}

.confusion-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.confusion-pair-row p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.no-confusion {
    text-align: center;
    color: var(--success-color);
    font-style: italic;
    padding: 15px 0;
    font-size: 0.9rem;
}

/* Confidence anomalies list */
.anomalies-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.anomaly-item-row {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 12px 15px;
    font-size: 0.85rem;
    line-height: 1.4;
}

.anomaly-item-row.uncertain-correct {
    border-left: 4px solid var(--warning-color);
}

.anomaly-item-row.confident-incorrect {
    border-left: 4px solid var(--error-color);
}

.anomaly-title {
    font-weight: 700;
    margin-bottom: 4px;
}

/* Readiness matrix table */
.readiness-matrix-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.readiness-matrix-table th, .readiness-matrix-table td {
    padding: 10px 15px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.readiness-matrix-table th {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
}

.risk-tag {
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}
.risk-low { background-color: rgba(20, 180, 90, 0.15); color: var(--success-color); }
.risk-medium { background-color: rgba(230, 160, 10, 0.15); color: var(--warning-color); }
.risk-high { background-color: rgba(220, 50, 50, 0.15); color: var(--error-color); }

/* Personalized Strategy Study timeline */
.roadmap-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 900px) {
    .roadmap-grid {
        grid-template-columns: 1fr;
    }
}

.flex-between {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.timeline-container {
    display: flex;
    flex-direction: column;
    position: relative;
    padding-left: 20px;
    margin-top: 10px;
}

.timeline-container::before {
    content: "";
    position: absolute;
    top: 5px;
    left: 4px;
    width: 2px;
    height: 90%;
    background-color: var(--border-color);
}

.timeline-step {
    position: relative;
    margin-bottom: 20px;
}

.timeline-step::before {
    content: "";
    position: absolute;
    left: -20px;
    top: 4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    border: 2px solid var(--bg-secondary);
}

.step-num {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-hover);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.step-details ul {
    list-style: square;
    padding-left: 15px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.step-details ul li {
    margin-bottom: 4px;
}

/* MS Learn lists & Blueprint tags */
.learn-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 10px 0;
}

.learn-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 10px 15px;
}

.learn-link {
    color: var(--accent-hover);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
}

.learn-link:hover {
    text-decoration: underline;
}

.learn-item p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.next-blueprint-box {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed var(--border-color);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.next-blueprint-box p {
    margin-bottom: 6px;
}

.blueprint-composition-gauge {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.blueprint-composition-gauge .badge {
    width: auto;
    height: auto;
    border-radius: var(--border-radius-sm);
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Question Review Walkthrough explorer */
.review-filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.filter-btn {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.8rem;
    padding: 6px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.filter-btn:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.filter-btn.active {
    background-color: var(--accent-primary);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.review-questions-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.review-question-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px;
    content-visibility: auto;
    contain-intrinsic-size: auto 320px;
}

.review-question-card.correct-card { border-left: 4px solid var(--success-color); }
.review-question-card.incorrect-card { border-left: 4px solid var(--error-color); }

.review-card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.review-card-meta .left-meta {
    display: flex;
    gap: 8px;
}

.review-card-meta .right-meta {
    font-weight: 700;
}

.review-question-card h4 {
    font-size: 1rem;
    margin-bottom: 15px;
    line-height: 1.5;
}

.review-answers-compare {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 15px;
    margin-bottom: 15px;
    font-size: 0.85rem;
    line-height: 1.5;
}

.compare-row {
    margin-bottom: 8px;
}
.compare-row:last-child { margin-bottom: 0; }

.text-correct { color: var(--success-color); font-weight: 700; }
.text-incorrect { color: var(--error-color); font-weight: 700; }

.explanation-block {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

.explanation-block h5 {
    font-size: 0.9rem;
    color: var(--accent-hover);
    margin-bottom: 6px;
}

.explanation-block p {
    margin-bottom: 8px;
}
.explanation-block p:last-child { margin-bottom: 0; }

/* ================= PHASE 2 EXAM REVIEW STYLING ================= */
.review-choices-container {
    margin-bottom: 20px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 15px;
}

.review-options-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.review-option-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.review-option-item.option-correct-selected {
    border-color: var(--success-color);
    background-color: rgba(20, 180, 90, 0.05);
}

.review-option-item.option-incorrect-selected {
    border-color: var(--error-color);
    background-color: rgba(220, 50, 50, 0.05);
}

.review-option-item.option-correct-missed {
    border-color: var(--success-color);
    border-style: dashed;
    background-color: rgba(20, 180, 90, 0.02);
}

.review-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
}

.badge-correct {
    background-color: rgba(20, 180, 90, 0.15);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.badge-incorrect {
    background-color: rgba(220, 50, 50, 0.15);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.badge-correct-missed {
    background-color: rgba(20, 180, 90, 0.05);
    color: var(--success-color);
    border: 1px dashed var(--success-color);
}

/* Matrix Review Table styling */
.review-matrix-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    margin-top: 5px;
}

.review-matrix-table th, .review-matrix-table td {
    padding: 10px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.review-matrix-table th:first-child, .review-matrix-table td:first-child {
    text-align: left;
    width: 50%;
}

.row-incorrect {
    background-color: rgba(220, 50, 50, 0.02);
}

.user-badge {
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.8rem;
}

.user-badge.match {
    background-color: rgba(20, 180, 90, 0.1);
    color: var(--success-color);
}

.user-badge.mismatch {
    background-color: rgba(220, 50, 50, 0.1);
    color: var(--error-color);
}

/* Hotspot & Drag Review rows */
.review-hotspot-block, .review-drag-drop-block {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.review-hotspot-row, .review-target-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    background-color: var(--bg-secondary);
}

.review-hotspot-row.row-incorrect, .review-target-row.row-incorrect {
    border-color: rgba(220, 50, 50, 0.3);
}

.review-hotspot-row.row-correct, .review-target-row.row-correct {
    border-color: rgba(20, 180, 90, 0.3);
}

.part-result, .target-result {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
}

/* ========== AUTO-SAVE TOAST NOTIFICATION ========== */
#save-toast {
    position: fixed;
    bottom: 28px;
    right: 28px;
    background-color: hsl(142, 60%, 18%);
    border: 1px solid var(--success-color);
    color: var(--success-color);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    z-index: 9999;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

#save-toast.toast-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== READINESS COLOR CODING ========== */
.readiness-high { color: var(--success-color); }
.readiness-ready { color: var(--warning-color); }
.readiness-low  { color: var(--error-color); }

/* ========== POOL STATS WIDGET ========== */
.pool-stats-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    content-visibility: auto;
    contain-intrinsic-size: auto 260px;
}

.pool-stats-card h2 {
    font-size: 1.1rem;
    color: var(--accent-hover);
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.pool-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (max-width: 700px) {
    .pool-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.pool-stat-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pool-stat-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pool-stat-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.pool-stat-sub {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.pool-coverage-good  { color: var(--success-color); }
.pool-coverage-ok    { color: var(--warning-color); }

/* Code Block Styles */
pre code.hljs {
    border-radius: 8px;
    padding: 16px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9em;
    margin: 12px 0;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.5);
    background-color: #1e1e2e;
}
p code {
    background: rgba(255,255,255,0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9em;
}

/* ================= VIEW TRANSITIONS ================= */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.4s;
  animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
::view-transition-old(root) {
  animation-name: fade-out;
}
::view-transition-new(root) {
  animation-name: fade-in;
}
@keyframes fade-out {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-10px); }
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ================= LANGUAGE SELECTOR & USER BAR ================= */
.top-lang-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 14px;
}

.lang-bar-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.user-profile-bar {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-badge-pill {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.user-badge-pill strong {
    color: var(--accent-hover);
}

.small-btn {
    padding: 6px 14px;
    font-size: 0.85rem;
    border-radius: var(--border-radius-sm);
}

.lang-bar-label,
.lang-selector-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.exam-lang-selector-box {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 8px 16px;
    box-shadow: var(--shadow-sm);
}

.lang-switcher {
    display: inline-flex;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 3px;
    gap: 4px;
}

.lang-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: 4px;
    padding: 6px 12px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.lang-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.lang-btn.active {
    background-color: var(--accent-primary);
    color: #ffffff;
    box-shadow: 0 2px 8px var(--accent-glow);
}

/* ================= AUTH / LOGIN GATE VIEW ================= */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
    padding: 30px 15px;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 36px 32px;
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: 26px;
}

.auth-header h1 {
    font-size: 1.75rem;
}

.auth-header .subtitle {
    font-size: 0.95rem;
    line-height: 1.4;
}

.auth-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 4px;
    gap: 6px;
    margin-bottom: 24px;
}

.auth-tab-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: 4px;
    padding: 10px 12px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-tab-btn:hover {
    color: var(--text-primary);
}

.auth-tab-btn.active {
    background-color: var(--accent-primary);
    color: #fff;
    box-shadow: 0 2px 10px var(--accent-glow);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.auth-input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.auth-input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.auth-input-group input {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 12px 14px;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.auth-input-group input:focus {
    border-color: var(--accent-hover);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.auth-error {
    background-color: rgba(220, 50, 50, 0.12);
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
}

.auth-submit-btn {
    width: 100%;
    margin-top: 6px;
    padding: 14px 24px;
    font-size: 1.05rem;
}

/* ================= USER STATISTICS & ANALYTICS DASHBOARD ================= */
.history-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 15px;
}

.history-header-row h2 {
    margin-bottom: 0;
}

.dashboard-cta-row {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.stats-header-card {
    background: linear-gradient(135deg, hsla(207, 100%, 41%, 0.14) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}

.stats-header-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.stats-title-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}

.stats-title-group h1 {
    font-size: 2rem;
    margin-bottom: 2px;
}

.stats-header-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.stats-readiness-banner {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 18px 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.readiness-status-box {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.readiness-meta-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.status-exam-ready {
    background-color: rgba(20, 180, 90, 0.18);
    color: var(--success-color);
    border: 1px solid var(--success-color);
    font-size: 0.95rem;
    padding: 6px 14px;
}

.status-almost-ready {
    background-color: rgba(230, 160, 10, 0.18);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
    font-size: 0.95rem;
    padding: 6px 14px;
}

.status-needs-practice {
    background-color: rgba(220, 50, 50, 0.18);
    color: var(--error-color);
    border: 1px solid var(--error-color);
    font-size: 0.95rem;
    padding: 6px 14px;
}

.status-no-data {
    background-color: var(--bg-tertiary);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    font-size: 0.95rem;
    padding: 6px 14px;
}

.readiness-gauges-group {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 28px;
    flex-grow: 1;
    justify-content: flex-end;
}

@media (max-width: 768px) {
    .readiness-gauges-group {
        justify-content: flex-start;
        width: 100%;
    }
}

.readiness-mini-metric {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 210px;
    flex: 1;
    max-width: 280px;
}

.readiness-mini-bar-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.readiness-metric-num {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    min-width: 48px;
}

.mini-bar-bg {
    flex-grow: 1;
    height: 8px;
    background-color: var(--bg-tertiary);
}

/* Empty State */
.stats-empty-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 60px 24px;
    text-align: center;
    box-shadow: var(--shadow-md);
    margin-bottom: 24px;
}

.stats-empty-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
}

.stats-empty-card h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.stats-empty-card p {
    color: var(--text-secondary);
    max-width: 580px;
    margin: 12px auto 24px;
    line-height: 1.6;
}

/* Main Content Wrapper */
.stats-content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 30px;
}

/* 8 KPI Cards Grid */
.stats-kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

@media (max-width: 1024px) {
    .stats-kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .stats-kpi-grid {
        grid-template-columns: 1fr;
    }
}

.stats-kpi-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.stats-kpi-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-hover);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.stats-kpi-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.stats-kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    line-height: 1.2;
}

.stats-kpi-sub {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.delta-positive { color: var(--success-color) !important; font-weight: 600; }
.delta-negative { color: var(--error-color) !important; font-weight: 600; }
.delta-neutral  { color: var(--text-secondary) !important; }

/* Stats Generic Card */
.stats-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.stats-card h2 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stats-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 18px;
}

.stats-card-subtitle {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-top: 4px;
    margin-bottom: 16px;
}

.stats-card-header .stats-card-subtitle {
    margin-bottom: 0;
}

/* Score Progression SVG Chart */
.stats-chart-legend {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.chart-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.legend-dot.score-dot {
    background-color: var(--accent-hover);
    box-shadow: 0 0 6px var(--accent-glow);
}

.legend-line {
    width: 18px;
    height: 3px;
    display: inline-block;
    border-radius: 2px;
}

.legend-line.rolling-line {
    background-color: var(--warning-color);
}

.legend-line.pass-threshold-line {
    border-top: 2px dashed var(--success-color);
    height: 0;
}

.stats-svg-chart-container {
    width: 100%;
    overflow-x: auto;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 16px;
}

.stats-score-svg {
    width: 100%;
    height: auto;
    min-width: 560px;
    display: block;
}

.chart-point-group {
    cursor: pointer;
}

.chart-point-circle,
.chart-point-dot {
    transition: r 0.18s ease, stroke-width 0.18s ease;
}

.chart-point-group:hover .chart-point-circle,
.chart-point-group:hover .chart-point-dot {
    r: 8px;
    stroke-width: 3px;
}

/* 3-Column Breakdown Grid */
.stats-breakdown-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 1024px) {
    .stats-breakdown-grid {
        grid-template-columns: 1fr;
    }
}

.stats-bars-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.stats-bar-item,
.stats-breakdown-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 12px 14px;
}

.stats-bar-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.stats-bar-pct {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-hover);
}

.stats-bar-meta,
.stats-metric-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* 4-Quadrant Time Pacing & Confidence Matrix */
.pacing-quadrants-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 700px) {
    .pacing-quadrants-grid {
        grid-template-columns: 1fr;
    }
}

.pacing-quadrant-card,
.pacing-quad-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-primary);
    border-radius: var(--border-radius-sm);
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pacing-quadrant-card.quad-fast-correct,
.pacing-quad-card.quad-fast-correct {
    border-left-color: var(--success-color);
}

.pacing-quadrant-card.quad-fast-incorrect,
.pacing-quad-card.quad-fast-incorrect {
    border-left-color: var(--warning-color);
}

.pacing-quadrant-card.quad-slow-correct,
.pacing-quad-card.quad-slow-correct {
    border-left-color: var(--accent-hover);
}

.pacing-quadrant-card.quad-slow-incorrect,
.pacing-quad-card.quad-slow-incorrect {
    border-left-color: var(--error-color);
}

.quad-header,
.pacing-quad-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.quad-title,
.pacing-quad-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
}

.quad-metrics {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin: 2px 0;
}

.quad-count,
.pacing-quad-count {
    font-size: 1.6rem;
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--text-primary);
}

.quad-pct,
.pacing-quad-pct {
    font-size: 0.85rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.quad-desc,
.pacing-quad-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.marked-review-summary {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 14px 18px;
    margin-top: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.marked-review-summary strong {
    color: var(--warning-color);
    font-family: var(--font-mono);
}

/* Weakest & Strongest Sub-Topics */
.stats-topics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 900px) {
    .stats-topics-grid {
        grid-template-columns: 1fr;
    }
}

.stats-topics-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stats-topic-row,
.stats-topic-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 12px 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stats-topic-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.stats-topic-title-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.stats-topic-name {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stats-topic-acc {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.stats-topic-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Recurring Azure Service Confusions */
.stats-confusions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 14px;
}

.stats-confusions-grid .confusion-pair-row {
    margin-bottom: 0;
}

.confusion-topics-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.stats-confusion-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--error-color);
    border-radius: var(--border-radius-sm);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stats-confusion-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
}

.stats-confusion-pair {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stats-confusion-count {
    background-color: rgba(220, 50, 50, 0.16);
    color: var(--error-color);
    border: 1px solid var(--error-color);
    border-radius: var(--border-radius-sm);
    padding: 2px 8px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 700;
    white-space: nowrap;
}

.stats-confusion-topics {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}