/**
 * NetSim Pro V2 - Stylesheet
 * Enhanced with port LEDs, packet animation, exam panel, and new device styles
 */

:root {
    --bg-dark: #0f172a;
    --bg-panel: rgba(30, 41, 59, 0.7);
    --border-color: rgba(148, 163, 184, 0.1);
    --accent-color: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
    --purple: #8b5cf6;
    --terminal-bg: #0a0a0a;
    --terminal-text: #00ff00;
    --font-ui: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-ui);
    overflow: hidden;
    height: 100vh;
    background-image:
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
}

.app-container {
    display: grid;
    grid-template-columns: 280px 1fr 480px;
    height: 100vh;
    width: 100vw;
}

/* ========== SIDEBAR ========== */
.sidebar {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    overflow-y: auto;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logo-area i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.logo-area h1 {
    font-weight: 700;
    font-size: 1.25rem;
    background: linear-gradient(135deg, var(--accent-color), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.version-badge {
    font-size: 0.65rem;
    background: var(--accent-color);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: auto;
}

.tools-section h3,
.scenario-controls h3 {
    color: var(--text-secondary);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

/* Device Palette */
.device-palette {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.device-tool {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 0.6rem;
    border-radius: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    cursor: grab;
    transition: all 0.2s;
    font-size: 0.75rem;
}

.device-tool:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.device-tool i {
    font-size: 1.2rem;
    color: var(--accent-color);
}

.device-tool span {
    color: var(--text-secondary);
    font-size: 0.65rem;
}

/* Toolbar */
.toolbar {
    padding: 0.75rem 0;
}

.toolbar-label {
    color: var(--text-secondary);
    font-size: 0.65rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: block;
}

.tool-group {
    display: flex;
    gap: 0.5rem;
}

.tool-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.tool-btn.active,
.tool-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Scenario Buttons */
.scen-btn {
    width: 100%;
    padding: 0.6rem;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.scen-btn:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-color);
}

.scen-btn i {
    width: 16px;
    text-align: center;
}

#btn-ddos {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

#btn-ddos:hover {
    background: rgba(239, 68, 68, 0.2);
}

.preset-btn {
    background: rgba(59, 130, 246, 0.08);
    color: var(--accent-color);
    border-color: rgba(59, 130, 246, 0.2);
}

/* ========== MAIN CONTENT ========== */
.main-content {
    position: relative;
    display: flex;
    flex-direction: column;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 25px 25px;
}

.main-content .toolbar {
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
}

.status-bar {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-bar i {
    color: var(--success);
}

.view-controls {
    display: flex;
    gap: 0.5rem;
}

.view-controls button {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 0.25rem;
    cursor: pointer;
    transition: all 0.2s;
}

.view-controls button:hover {
    background: var(--accent-color);
    color: white;
}

.canvas-area {
    flex: 1;
    position: relative;
    overflow: auto;
    cursor: default;
}

.canvas-area.drag-active {
    background-color: rgba(59, 130, 246, 0.05);
    box-shadow: inset 0 0 30px rgba(59, 130, 246, 0.2);
}

#cable-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

#cable-layer line {
    pointer-events: stroke;
}

#device-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

/* ========== DEVICES ON CANVAS ========== */
.placed-device {
    position: absolute;
    width: 72px;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: grab;
    color: var(--text-primary);
    font-size: 0.7rem;
    gap: 0.2rem;
    z-index: 3;
    transition: transform 0.1s;
    pointer-events: auto;
}

.placed-device:active {
    cursor: grabbing;
}

.device-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.95));
    border: 2px solid var(--text-secondary);
    border-radius: 0.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--text-secondary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    position: relative;
}

.placed-device.selected .device-icon {
    border-color: var(--accent-color);
    color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

/* Port LED */
.port-led {
    position: absolute;
    bottom: -2px;
    right: -2px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid var(--bg-dark);
}

.led-connected {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.led-disconnected {
    background: var(--danger);
    box-shadow: 0 0 6px var(--danger);
}

.device-label {
    background: rgba(0, 0, 0, 0.7);
    padding: 2px 6px;
    border-radius: 4px;
    white-space: nowrap;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.device-ip {
    color: var(--accent-color);
    font-size: 0.6rem;
    background: rgba(0, 0, 0, 0.8);
    padding: 1px 4px;
    border-radius: 3px;
    font-family: var(--font-mono);
}

/* ========== CABLES ========== */
.cable-line {
    stroke: var(--text-secondary);
    stroke-width: 3;
    fill: none;
    transition: stroke 0.3s;
    cursor: pointer;
}

.cable-line:hover {
    stroke: var(--accent-color);
    filter: drop-shadow(0 0 4px var(--accent-color));
}

.cable-line.active {
    stroke: var(--success);
    stroke-dasharray: 8;
    animation: flow 1s linear infinite;
}

@keyframes flow {
    to {
        stroke-dashoffset: -16;
    }
}

.cable-line.ddos {
    stroke: var(--danger);
    stroke-width: 4;
    stroke-dasharray: 10;
    animation: flow 0.15s linear infinite;
    filter: drop-shadow(0 0 8px var(--danger));
}

.cable-line.blocked {
    stroke: var(--success);
    stroke-width: 4;
    opacity: 0.6;
}

/* Packet Animation */
.packet-dot {
    filter: drop-shadow(0 0 6px currentColor);
}

/* ========== PROPERTIES PANEL ========== */
.properties-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 100vh;
    overflow: hidden;
}

.panel-header {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.tab {
    flex: 1;
    padding: 0.9rem;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

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

.tab.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.05);
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    overflow: hidden;
    padding: 1.25rem;
    min-height: 0;
}

.tab-pane {
    display: none;
    height: 100%;
}

.tab-pane.active {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    text-align: center;
    opacity: 0.5;
}

.empty-state i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

input[type="text"],
select {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    padding: 0.6rem 0.8rem;
    border-radius: 0.4rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    user-select: text;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.checkbox-group label {
    margin: 0;
    cursor: pointer;
}

.action-btn {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, var(--accent-color), #2563eb);
    color: white;
    border: none;
    border-radius: 0.4rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* Server Options */
#server-options,
#firewall-options {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-top: 1rem;
    border: 1px solid var(--border-color);
}

#server-options h4,
#firewall-options h4 {
    color: var(--accent-color);
    font-size: 0.8rem;
    margin-bottom: 0.75rem;
}

.fw-rule {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 4px;
    margin-bottom: 0.3rem;
    font-size: 0.75rem;
}

.fw-rule button {
    background: transparent;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 1rem;
}

/* ========== TERMINAL ========== */
.terminal-window {
    background: var(--terminal-bg);
    border: 1px solid rgba(0, 255, 0, 0.2);
    border-radius: 0.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--terminal-text);
    box-shadow: inset 0 0 30px rgba(0, 255, 0, 0.03);
    overflow: hidden;
    min-height: 0;
}

.term-output {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    margin-bottom: 0.5rem;
    white-space: pre-wrap;
    padding-right: 8px;
    min-height: 0;
}

.term-output::-webkit-scrollbar {
    width: 6px;
}

.term-output::-webkit-scrollbar-track {
    background: #111;
}

.term-output::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 3px;
}

.term-line {
    line-height: 1.4;
}

.term-input-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #111;
    padding: 0.5rem;
    border-radius: 4px;
    flex-shrink: 0;
    border: 1px solid rgba(0, 255, 0, 0.1);
}

.term-input-line .prompt {
    color: var(--success);
}

.term-input-line input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--terminal-text);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0;
}

.term-input-line input:focus {
    outline: none;
}

/* ========== CALCULATOR ========== */
.calc-tool {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.calc-results {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 0.5rem;
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.calc-row {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.calc-row .label {
    color: var(--text-secondary);
}

.calc-row .value {
    color: var(--accent-color);
    font-weight: 500;
}

/* ========== MODAL ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999;
    backdrop-filter: blur(8px);
}

.modal-content {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 1rem;
    max-width: 900px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 0 60px rgba(59, 130, 246, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    color: var(--accent-color);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

.modal-close:hover {
    color: var(--danger);
}

/* Command Table */
.cmd-table {
    width: 100%;
    border-collapse: collapse;
}

.cmd-table th,
.cmd-table td {
    text-align: left;
    padding: 0.6rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.cmd-table th {
    color: var(--accent-color);
    text-transform: uppercase;
    font-size: 0.7rem;
    background: rgba(0, 0, 0, 0.2);
}

.cmd-table td {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.cmd-table td:first-child {
    color: var(--success);
    font-weight: 600;
}

.shortcut-tip {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 0.5rem;
    border-left: 3px solid var(--accent-color);
    font-size: 0.85rem;
}

.shortcut-tip code {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--success);
}

/* ========== EXAM PANEL ========== */
.exam-panel {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-panel);
    border: 1px solid var(--accent-color);
    border-radius: 1rem;
    padding: 1rem 1.5rem;
    min-width: 350px;
    z-index: 10000;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.exam-panel h4 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.exam-score {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--success);
}

.exam-timer {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--warning);
    text-align: center;
    margin: 0.5rem 0;
}

.exam-tasks {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0;
    max-height: 200px;
    overflow-y: auto;
}

.exam-tasks li {
    padding: 0.4rem 0;
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.exam-tasks li.completed {
    color: var(--success);
}

.exam-check-btn,
.exam-stop-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.4rem;
    cursor: pointer;
    font-weight: 500;
    margin-right: 0.5rem;
}

.exam-check-btn {
    background: var(--accent-color);
    color: white;
}

.exam-stop-btn {
    background: var(--danger);
    color: white;
}

/* Scenario Modal */
.scenario-modal {
    max-width: 800px;
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.scenario-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.scenario-card:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.scenario-card.guide-card {
    border-color: rgba(139, 92, 246, 0.3);
}

.scenario-card.guide-card:hover {
    border-color: var(--purple);
}

.scenario-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.scenario-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.scenario-meta {
    display: flex;
    gap: 0.75rem;
    font-size: 0.7rem;
}

.scenario-diff {
    font-weight: 600;
}

/* Guide Overlay */
.guide-overlay {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10001;
}

.guide-step-content {
    background: var(--bg-panel);
    border: 2px solid var(--purple);
    border-radius: 1rem;
    padding: 1.25rem 1.5rem;
    min-width: 400px;
    box-shadow: 0 10px 40px rgba(139, 92, 246, 0.3);
}

.guide-step-number {
    font-size: 0.7rem;
    color: var(--purple);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.guide-step-text {
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.guide-step-buttons {
    display: flex;
    gap: 0.5rem;
}

.guide-step-buttons button {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.4rem;
    cursor: pointer;
    font-weight: 500;
    background: var(--purple);
    color: white;
}

.guide-step-buttons .guide-close {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.guide-highlight {
    outline: 3px solid var(--purple) !important;
    outline-offset: 3px;
    animation: pulse-highlight 1s infinite;
}

@keyframes pulse-highlight {

    0%,
    100% {
        outline-color: var(--purple);
    }

    50% {
        outline-color: transparent;
    }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1200px) {
    .app-container {
        grid-template-columns: 220px 1fr 380px;
    }
}

@media (max-width: 900px) {
    .app-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }

    .sidebar {
        flex-direction: row;
        overflow-x: auto;
        padding: 1rem;
    }

    .properties-panel {
        height: 300px;
    }
}

/* ========== LAB STORY PANEL ========== */
.lab-story-panel {
    position: fixed;
    top: 80px;
    right: 20px;
    width: 380px;
    max-height: calc(100vh - 120px);
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.98), rgba(15, 23, 42, 0.98));
    border: 2px solid var(--accent-color);
    border-radius: 1rem;
    z-index: 9999;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(59, 130, 246, 0.2);
    overflow: hidden;
}

.lab-story-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: linear-gradient(90deg, var(--accent-color), var(--purple));
    color: white;
}

.lab-story-header h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

.lab-story-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    opacity: 0.8;
}

.lab-story-close:hover {
    opacity: 1;
}

.lab-story-content {
    padding: 1.25rem;
    font-size: 0.9rem;
    line-height: 1.6;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    color: var(--text-primary);
}

.lab-story-content p {
    margin-bottom: 0.75rem;
}

.lab-story-content code {
    background: rgba(59, 130, 246, 0.2);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.lab-story-content ol,
.lab-story-content ul {
    margin-bottom: 0.75rem;
}

/* ========== EXAM STORY & INFO ========== */
.exam-story {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 0.5rem;
    padding: 0.75rem;
    margin: 0.5rem 0;
    font-size: 0.75rem;
    line-height: 1.4;
    white-space: pre-line;
    max-height: 150px;
    overflow-y: auto;
    border-left: 3px solid var(--accent-color);
}

.exam-info-btn {
    width: 100%;
    padding: 0.5rem;
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 0.4rem;
    color: var(--accent-color);
    cursor: pointer;
    font-weight: 500;
    margin: 0.5rem 0;
    transition: all 0.2s;
}

.exam-info-btn:hover {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.3), rgba(139, 92, 246, 0.3));
    border-color: var(--accent-color);
}