/* ========================================
   CODEMATRIX ACADEMY - ADVANCED LEARNING PLATFORM
   Matrix-Inspired Dark Theme with Modern UI
   ======================================== */

/* CSS Variables for Theme */
:root {
    --matrix-green: #00ff41;
    --matrix-dark-green: #008f11;
    --matrix-bg: #0d0208;
    --matrix-bg-secondary: #1a1a1a;
    --matrix-panel: rgba(13, 2, 8, 0.95);
    --text-primary: #00ff41;
    --text-secondary: #00cc33;
    --text-muted: #666;
    --accent-cyan: #00ffff;
    --accent-purple: #b026ff;
    --warning: #ffaa00;
    --error: #ff0055;
    --success: #00ff41;
    --shadow: rgba(0, 255, 65, 0.2);
}

/* Global Resets */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto Mono', monospace;
    background: var(--matrix-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* ========================================
   MATRIX RAIN BACKGROUND
   ======================================== */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.15;
}

/* ========================================
   MAIN CONTAINER & LAYOUT
   ======================================== */
.main-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ========================================
   NAVIGATION BAR
   ======================================== */
.navbar {
    background: var(--matrix-panel);
    border-bottom: 2px solid var(--matrix-green);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px var(--shadow);
}

.nav-left, .nav-center, .nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.matrix-bracket {
    color: var(--accent-cyan);
    font-size: 2rem;
    animation: pulse 2s infinite;
}

.logo-text {
    background: linear-gradient(45deg, var(--matrix-green), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-btn {
    background: transparent;
    border: 1px solid var(--matrix-dark-green);
    color: var(--text-primary);
    padding: 0.7rem 1.2rem;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-btn:hover {
    background: var(--matrix-dark-green);
    border-color: var(--matrix-green);
    box-shadow: 0 0 15px var(--shadow);
    transform: translateY(-2px);
}

.nav-btn .icon {
    font-size: 1.2rem;
}

.user-stats {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.xp-badge, .level-badge {
    background: linear-gradient(135deg, var(--matrix-dark-green), var(--matrix-green));
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
    border: 1px solid var(--matrix-green);
}

.profile-btn {
    background: var(--matrix-dark-green);
    border: 2px solid var(--matrix-green);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.5rem;
}

.profile-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--shadow);
}

/* ========================================
   SIDEBAR
   ======================================== */
.sidebar {
    background: var(--matrix-panel);
    border-right: 2px solid var(--matrix-green);
    width: 300px;
    padding: 1.5rem;
    overflow-y: auto;
    max-height: calc(100vh - 80px);
    transition: all 0.3s ease;
}

.sidebar.collapsed {
    width: 60px;
}

.sidebar.collapsed .sidebar-content {
    display: none;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.sidebar-header h3 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
}

.collapse-btn {
    background: transparent;
    border: 1px solid var(--matrix-green);
    color: var(--matrix-green);
    width: 30px;
    height: 30px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.collapse-btn:hover {
    background: var(--matrix-dark-green);
    transform: rotate(180deg);
}

.learning-path {
    margin-bottom: 2rem;
}

.learning-path h4 {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.topic-list {
    list-style: none;
}

.topic-item {
    padding: 0.8rem;
    margin-bottom: 0.5rem;
    border: 1px solid var(--matrix-dark-green);
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.topic-item:hover {
    background: rgba(0, 255, 65, 0.1);
    border-color: var(--matrix-green);
    transform: translateX(5px);
}

.topic-item.active {
    background: rgba(0, 255, 65, 0.15);
    border-color: var(--matrix-green);
    box-shadow: 0 0 10px var(--shadow);
}

.topic-item.completed {
    opacity: 0.7;
}

.topic-item .check {
    margin-right: 0.5rem;
    font-weight: 700;
}

.progress-bar {
    display: block;
    width: 100%;
    height: 4px;
    background: var(--matrix-bg-secondary);
    border-radius: 2px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.progress-bar span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--matrix-green), var(--accent-cyan));
    transition: width 0.5s ease;
}

.quick-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 2rem;
}

.action-btn {
    background: linear-gradient(135deg, var(--matrix-dark-green), var(--matrix-green));
    border: none;
    color: white;
    padding: 0.8rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 700;
    transition: all 0.3s ease;
}

.action-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px var(--shadow);
}

/* ========================================
   MAIN CONTENT AREA
   ======================================== */
.content-area {
    flex: 1;
    padding: 2rem;
    margin-left: 300px;
    transition: margin-left 0.3s ease;
}

.section {
    display: none;
    animation: fadeIn 0.5s ease;
}

.section.active {
    display: block;
}

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

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    text-align: center;
    padding: 3rem 0;
}

.glitch-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    color: var(--matrix-green);
    text-shadow: 0 0 20px var(--shadow);
    margin-bottom: 1rem;
    position: relative;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 100% {
        transform: translate(0);
    }
    20% {
        transform: translate(-2px, 2px);
    }
    40% {
        transform: translate(-2px, -2px);
    }
    60% {
        transform: translate(2px, 2px);
    }
    80% {
        transform: translate(2px, -2px);
    }
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-dark-green);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--matrix-green);
    transform: translateY(-10px);
    box-shadow: 0 10px 30px var(--shadow);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    font-family: 'Orbitron', sans-serif;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.stats-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.stat-card {
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--matrix-green);
    font-family: 'Orbitron', sans-serif;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* ========================================
   LIVE EDITOR SECTION
   ======================================== */
.editor-container {
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    overflow: hidden;
}

.editor-header {
    background: var(--matrix-bg-secondary);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--matrix-green);
}

.editor-header h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
}

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

.language-selector {
    background: var(--matrix-bg);
    border: 1px solid var(--matrix-green);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-family: 'Roboto Mono', monospace;
    cursor: pointer;
}

.ctrl-btn {
    background: var(--matrix-dark-green);
    border: 1px solid var(--matrix-green);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Roboto Mono', monospace;
    transition: all 0.3s ease;
}

.ctrl-btn:hover {
    background: var(--matrix-green);
    color: var(--matrix-bg);
    box-shadow: 0 0 10px var(--shadow);
}

.editor-workspace {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 500px;
}

.code-panel, .preview-panel {
    border-right: 1px solid var(--matrix-dark-green);
}

.preview-panel {
    border-right: none;
}

.panel-tabs {
    background: var(--matrix-bg-secondary);
    display: flex;
    border-bottom: 1px solid var(--matrix-dark-green);
}

.tab {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.8rem 1.5rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.tab.active {
    color: var(--matrix-green);
    border-bottom-color: var(--matrix-green);
    background: rgba(0, 255, 65, 0.1);
}

.tab:hover {
    background: rgba(0, 255, 65, 0.05);
}

.editor-wrapper {
    height: calc(100% - 45px);
}

.code-editor {
    width: 100%;
    height: 100%;
    background: var(--matrix-bg);
    color: var(--text-primary);
    border: none;
    padding: 1rem;
    font-family: 'Roboto Mono', monospace;
    font-size: 14px;
    resize: none;
    outline: none;
}

.panel-header {
    background: var(--matrix-bg-secondary);
    padding: 0.8rem 1.5rem;
    border-bottom: 1px solid var(--matrix-dark-green);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.refresh-btn {
    background: transparent;
    border: 1px solid var(--matrix-green);
    color: var(--matrix-green);
    padding: 0.3rem 0.8rem;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.refresh-btn:hover {
    background: var(--matrix-dark-green);
}

#previewFrame {
    width: 100%;
    height: calc(100% - 45px);
    border: none;
    background: white;
}

.console-panel {
    background: var(--matrix-bg-secondary);
    border-top: 2px solid var(--matrix-green);
    max-height: 200px;
}

.console-header {
    padding: 0.8rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--matrix-dark-green);
}

.clear-console {
    background: transparent;
    border: 1px solid var(--error);
    color: var(--error);
    padding: 0.3rem 0.8rem;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.8rem;
}

.console-content {
    padding: 1rem 1.5rem;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
    max-height: 140px;
    overflow-y: auto;
}

.console-line {
    margin-bottom: 0.5rem;
    padding: 0.3rem;
}

.console-line.error {
    color: var(--error);
}

.console-line.info {
    color: var(--accent-cyan);
}

.console-line.success {
    color: var(--success);
}

/* ========================================
   TUTORIALS SECTION
   ======================================== */
.tutorials-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.tutorials-header h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    font-size: 2rem;
}

.search-bar {
    display: flex;
    gap: 0.5rem;
}

.search-bar input {
    background: var(--matrix-bg);
    border: 2px solid var(--matrix-dark-green);
    color: var(--text-primary);
    padding: 0.7rem 1rem;
    border-radius: 5px;
    font-family: 'Roboto Mono', monospace;
    width: 300px;
    outline: none;
    transition: all 0.3s ease;
}

.search-bar input:focus {
    border-color: var(--matrix-green);
    box-shadow: 0 0 10px var(--shadow);
}

.search-btn {
    background: var(--matrix-dark-green);
    border: 2px solid var(--matrix-green);
    color: var(--text-primary);
    padding: 0.7rem 1.2rem;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: var(--matrix-green);
    color: var(--matrix-bg);
}

.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.tutorial-card {
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-dark-green);
    border-radius: 10px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
}

.tutorial-card:hover {
    border-color: var(--matrix-green);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow);
}

.tutorial-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 700;
}

.tutorial-badge.beginner {
    background: linear-gradient(135deg, #00ff41, #00cc33);
    color: var(--matrix-bg);
}

.tutorial-badge.intermediate {
    background: linear-gradient(135deg, #ffaa00, #ff8800);
    color: var(--matrix-bg);
}

.tutorial-badge.advanced {
    background: linear-gradient(135deg, #ff0055, #cc0044);
    color: white;
}

.tutorial-card h3 {
    color: var(--accent-cyan);
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
}

.tutorial-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.tutorial-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.start-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--matrix-dark-green), var(--matrix-green));
    border: none;
    color: white;
    padding: 0.8rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 700;
    font-family: 'Roboto Mono', monospace;
    transition: all 0.3s ease;
}

.start-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px var(--shadow);
}

/* ========================================
   CHALLENGES SECTION
   ======================================== */
.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.challenge-card {
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-dark-green);
    border-radius: 10px;
    padding: 2rem;
    position: relative;
    transition: all 0.3s ease;
}

.challenge-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow);
}

.challenge-card.easy {
    border-color: var(--success);
}

.challenge-card.medium {
    border-color: var(--warning);
}

.challenge-card.hard {
    border-color: var(--error);
}

.challenge-difficulty {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 700;
}

.challenge-card.easy .challenge-difficulty {
    background: var(--success);
    color: var(--matrix-bg);
}

.challenge-card.medium .challenge-difficulty {
    background: var(--warning);
    color: var(--matrix-bg);
}

.challenge-card.hard .challenge-difficulty {
    background: var(--error);
    color: white;
}

.challenge-card h3 {
    color: var(--accent-cyan);
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 0.8rem;
}

.challenge-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.challenge-rewards {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.xp-reward {
    background: rgba(0, 255, 65, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    color: var(--matrix-green);
    font-weight: 700;
}

.badge-reward {
    font-size: 1.5rem;
}

.challenge-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-purple), #8000cc);
    border: none;
    color: white;
    padding: 0.8rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 700;
    font-family: 'Roboto Mono', monospace;
    transition: all 0.3s ease;
}

.challenge-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(176, 38, 255, 0.4);
}

/* ========================================
   AI ASSISTANT SECTION
   ======================================== */
.ai-container {
    max-width: 900px;
    margin: 0 auto;
}

.ai-container h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    margin-bottom: 2rem;
    text-align: center;
    font-size: 2rem;
}

.chat-container {
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    overflow: hidden;
}

.chat-messages {
    padding: 2rem;
    height: 500px;
    overflow-y: auto;
}

.ai-message, .user-message {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    animation: slideIn 0.3s ease;
}

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

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--matrix-dark-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.message-content {
    background: rgba(0, 255, 65, 0.1);
    padding: 1rem 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--matrix-dark-green);
    flex: 1;
}

.user-message .message-content {
    background: rgba(0, 255, 255, 0.1);
    border-color: var(--accent-cyan);
}

.suggested-questions {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.suggestion {
    background: var(--matrix-bg);
    border: 1px solid var(--matrix-dark-green);
    color: var(--text-secondary);
    padding: 0.7rem 1rem;
    border-radius: 5px;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Roboto Mono', monospace;
}

.suggestion:hover {
    border-color: var(--matrix-green);
    background: rgba(0, 255, 65, 0.1);
    transform: translateX(5px);
}

.chat-input-container {
    background: var(--matrix-bg-secondary);
    padding: 1.5rem;
    border-top: 2px solid var(--matrix-green);
    display: flex;
    gap: 1rem;
}

#aiChatInput {
    flex: 1;
    background: var(--matrix-bg);
    border: 2px solid var(--matrix-dark-green);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: 5px;
    font-family: 'Roboto Mono', monospace;
    resize: none;
    outline: none;
    transition: all 0.3s ease;
}

#aiChatInput:focus {
    border-color: var(--matrix-green);
    box-shadow: 0 0 10px var(--shadow);
}

.send-btn {
    background: linear-gradient(135deg, var(--matrix-dark-green), var(--matrix-green));
    border: none;
    color: white;
    padding: 1rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 700;
    font-family: 'Roboto Mono', monospace;
    transition: all 0.3s ease;
}

.send-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px var(--shadow);
}

/* ========================================
   COLLABORATION SECTION
   ======================================== */
.collab-container {
    max-width: 1000px;
    margin: 0 auto;
}

.session-info {
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.session-info h3 {
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
}

.session-controls {
    display: flex;
    gap: 1rem;
}

.session-controls input {
    flex: 1;
    background: var(--matrix-bg);
    border: 2px solid var(--matrix-dark-green);
    color: var(--text-primary);
    padding: 0.8rem 1rem;
    border-radius: 5px;
    font-family: 'Roboto Mono', monospace;
    outline: none;
}

.collab-btn {
    background: var(--matrix-dark-green);
    border: 2px solid var(--matrix-green);
    color: var(--text-primary);
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Roboto Mono', monospace;
    transition: all 0.3s ease;
}

.collab-btn:hover {
    background: var(--matrix-green);
    color: var(--matrix-bg);
}

.active-users {
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-green);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.active-users h4 {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.info-text {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem;
    font-size: 1.1rem;
}

/* ========================================
   FLOATING ACTION BUTTONS
   ======================================== */
.fab-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 999;
}

.fab {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--matrix-dark-green), var(--matrix-green));
    border: 2px solid var(--matrix-green);
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 5px 20px var(--shadow);
    transition: all 0.3s ease;
}

.fab:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 8px 30px var(--shadow);
}

/* ========================================
   ACHIEVEMENT TOAST
   ======================================== */
.achievement-toast {
    position: fixed;
    top: 100px;
    right: -400px;
    background: linear-gradient(135deg, var(--accent-purple), #8000cc);
    padding: 1.5rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 10px 30px rgba(176, 38, 255, 0.5);
    z-index: 9999;
    transition: right 0.5s ease;
    max-width: 350px;
}

.achievement-toast.show {
    right: 2rem;
}

.achievement-icon {
    font-size: 3rem;
    animation: bounce 1s infinite;
}

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

.achievement-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: white;
}

.achievement-desc {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1200px) {
    .content-area {
        margin-left: 0;
    }
    
    .sidebar {
        position: fixed;
        left: -300px;
        height: 100vh;
        z-index: 999;
    }
    
    .sidebar.open {
        left: 0;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .nav-center {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .editor-workspace {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .code-panel, .preview-panel {
        height: 400px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-dashboard {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   SCROLLBAR STYLING
   ======================================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--matrix-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--matrix-dark-green);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--matrix-green);
}

/* ========================================
   SANDBOX SYSTEM STYLING
   ======================================== */
.sandbox-selector {
    display: flex;
    align-items: center;
    margin-right: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 255, 65, 0.05);
    border: 1px solid var(--matrix-dark-green);
    border-radius: 5px;
}

.sandbox-options {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.sandbox-label {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

.label-icon {
    font-size: 1.1rem;
}

.sandbox-select {
    background: var(--matrix-bg);
    border: 1px solid var(--matrix-green);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 3px;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.85rem;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
}

.sandbox-select:hover {
    background: var(--matrix-dark-green);
    box-shadow: 0 0 10px var(--shadow);
}

.sandbox-select:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
}

.sandbox-info {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.8rem;
    background: rgba(0, 255, 65, 0.1);
    border-radius: 3px;
    border-left: 3px solid var(--matrix-green);
}

.info-icon {
    font-size: 1rem;
}

.info-text {
    color: var(--text-secondary);
    font-size: 0.8rem;
    white-space: nowrap;
}

/* Security Analysis Panel */
.security-panel {
    background: var(--matrix-panel);
    border: 2px solid var(--warning);
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    animation: slideIn 0.3s ease;
}

.security-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.security-score {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.score-badge {
    background: linear-gradient(135deg, var(--matrix-green), var(--accent-cyan));
    color: var(--matrix-bg);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-weight: 700;
    font-size: 0.9rem;
}

.score-badge.low {
    background: linear-gradient(135deg, var(--error), #cc0044);
}

.score-badge.medium {
    background: linear-gradient(135deg, var(--warning), #ff8800);
}

.security-risks {
    margin-top: 1rem;
}

.risk-item {
    padding: 0.5rem;
    margin: 0.3rem 0;
    border-left: 3px solid var(--error);
    background: rgba(255, 0, 85, 0.1);
    border-radius: 3px;
}

.risk-item.warning {
    border-left-color: var(--warning);
    background: rgba(255, 170, 0, 0.1);
}

/* Resource Monitor */
.resource-monitor {
    position: fixed;
    bottom: 80px;
    right: 2rem;
    background: var(--matrix-panel);
    border: 2px solid var(--matrix-green);
    border-radius: 8px;
    padding: 1rem;
    min-width: 200px;
    z-index: 998;
    display: none;
}

.resource-monitor.active {
    display: block;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.monitor-header {
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--matrix-dark-green);
}

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

.metric-value {
    color: var(--matrix-green);
    font-weight: 700;
    font-size: 0.85rem;
}

/* Sandbox Mode Indicators */
.mode-indicator {
    position: fixed;
    top: 100px;
    right: 2rem;
    background: linear-gradient(135deg, var(--matrix-dark-green), var(--matrix-green));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: 0 5px 20px var(--shadow);
    z-index: 997;
    display: none;
    animation: fadeIn 0.3s ease;
}

.mode-indicator.active {
    display: block;
}

.mode-indicator.vm {
    background: linear-gradient(135deg, var(--accent-purple), #8000cc);
}

.mode-indicator.worker {
    background: linear-gradient(135deg, var(--accent-cyan), #0088cc);
}

/* Console enhancements for sandbox */
.console-line.security {
    color: var(--warning);
    background: rgba(255, 170, 0, 0.1);
    padding: 0.5rem;
    border-radius: 3px;
    border-left: 3px solid var(--warning);
}

.console-line.sandbox-info {
    color: var(--accent-cyan);
    background: rgba(0, 255, 255, 0.05);
    padding: 0.4rem;
    border-radius: 3px;
}

/* Execution timeout warning */
.timeout-warning {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--matrix-panel);
    border: 3px solid var(--error);
    border-radius: 10px;
    padding: 2rem;
    max-width: 400px;
    text-align: center;
    z-index: 9999;
    box-shadow: 0 10px 40px rgba(255, 0, 85, 0.4);
    display: none;
}

.timeout-warning.active {
    display: block;
    animation: popIn 0.3s ease;
}

@keyframes popIn {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.timeout-warning h3 {
    color: var(--error);
    margin-bottom: 1rem;
}

.timeout-warning p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.timeout-warning button {
    background: var(--error);
    border: none;
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 700;
    transition: all 0.3s ease;
}

.timeout-warning button:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(255, 0, 85, 0.5);
}