/*
 * Cyber Learning Arena & CTF Stylesheet
 * Dark cybernetic aesthetic with responsive flex/grid layouts
 */

.arena-main {
    padding: 30px 0 60px 0;
    min-height: 85vh;
}

.arena-container {
    max-width: 1300px;
}

/* TOP HUD */
.arena-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    background: linear-gradient(135deg, rgba(10, 15, 10, 0.9), rgba(5, 10, 15, 0.95));
    border: 1px solid var(--color-primary);
    border-radius: 4px;
    padding: 25px 30px;
    box-shadow: 0 0 25px rgba(0, 255, 65, 0.12);
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.hud-tag {
    font-family: var(--font-mono);
    color: var(--color-primary);
    font-size: 13px;
    letter-spacing: 1.5px;
    margin-bottom: 5px;
}

.hud-title {
    font-size: 2.2rem;
    margin: 0 0 8px 0;
    color: #fff;
    letter-spacing: 1px;
}

.hud-subtitle {
    color: var(--color-text-muted);
    margin: 0;
    font-size: 14px;
    max-width: 600px;
}

/* PLAYER STATS CARD */
.hud-player-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: #000;
    border: 1px solid var(--border-color);
    padding: 15px 25px;
    border-radius: 4px;
    min-width: 280px;
}

.player-rank-badge {
    font-size: 2.5rem;
    background: rgba(0, 255, 65, 0.08);
    border: 1px solid rgba(0, 255, 65, 0.3);
    width: 65px;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.2);
}

.player-stats {
    flex: 1;
}

.player-rank-name {
    font-family: var(--font-mono);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 1px;
}

.player-xp-row {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-accent);
    margin: 6px 0;
}

.arena-progress-track {
    background: #1a1a1a;
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
    border: 1px solid #333;
}

.arena-progress-fill {
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    height: 100%;
    transition: width 0.4s ease;
}

.player-stats-sub {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    font-family: var(--font-mono);
    color: #888;
}

/* CONTROL BAR */
.arena-control-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.filter-pills {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.pill-btn {
    background: #0d0d0d;
    border: 1px solid var(--border-color);
    color: var(--color-text-main);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 6px 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pill-btn:hover, .pill-btn.active {
    background: var(--color-primary-dim);
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
}

.hud-actions {
    display: flex;
    gap: 8px;
}

.btn-micro {
    background: #000;
    border: 1px solid var(--border-color);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 6px 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-micro:hover {
    color: #fff;
    border-color: var(--color-accent);
}

/* ARENA WORKSPACE GRID */
.arena-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 25px;
    align-items: start;
}

@media (max-width: 960px) {
    .arena-grid {
        grid-template-columns: 1fr;
    }
}

/* MISSIONS COLUMN */
.section-badge-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.section-badge-bar h2 {
    font-size: 1.1rem;
    color: #fff;
    font-family: var(--font-mono);
    margin: 0;
}

.pulse-indicator {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-primary);
    animation: pulseGlow 1.5s infinite alternate;
}

@keyframes pulseGlow {
    from { opacity: 0.5; }
    to { opacity: 1; text-shadow: 0 0 8px var(--color-primary); }
}

.missions-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* MISSION CARD */
.mission-card {
    background: #0c0c0c;
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 4px;
    position: relative;
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.mission-card:hover {
    border-color: rgba(0, 255, 65, 0.4);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

.mission-card.solved {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(0, 255, 65, 0.04), #080808);
}

.mission-card.solved::after {
    content: "SOLVED ✓";
    position: absolute;
    top: 15px;
    right: 15px;
    font-family: var(--font-mono);
    font-size: 11px;
    background: rgba(0, 255, 65, 0.15);
    color: var(--color-primary);
    padding: 3px 8px;
    border: 1px solid var(--color-primary);
    border-radius: 2px;
}

.mission-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
    padding-right: 70px;
}

.mission-cat {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-accent);
    text-transform: uppercase;
}

.mission-xp-badge {
    font-family: var(--font-mono);
    font-size: 11px;
    background: #161616;
    color: #fcb900;
    padding: 2px 6px;
    border-radius: 2px;
    border: 1px solid #333;
}

.mission-title {
    font-size: 1.15rem;
    color: #fff;
    margin: 5px 0 10px 0;
}

.mission-desc {
    color: #aaa;
    font-size: 13.5px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.mission-artifact-box {
    background: #050505;
    border: 1px dashed var(--border-color);
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: #00ff41;
    margin-bottom: 15px;
    word-break: break-all;
    user-select: all;
}

.mission-input-row {
    display: flex;
    gap: 10px;
}

.mission-input {
    flex: 1;
    background: #000;
    border: 1px solid var(--border-color);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 8px 12px;
}

.mission-input:focus {
    border-color: var(--color-primary);
    outline: none;
}

.btn-flag-submit {
    background: var(--color-primary);
    color: #000;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: bold;
    border: none;
    padding: 0 16px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-flag-submit:hover {
    background: #fff;
    box-shadow: 0 0 10px #fff;
}

.mission-hint-box {
    margin-top: 10px;
    background: rgba(252, 185, 0, 0.08);
    border: 1px solid rgba(252, 185, 0, 0.3);
    color: #ffd074;
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 8px 12px;
}

.mission-hint-toggle {
    background: none;
    border: none;
    color: #888;
    font-family: var(--font-mono);
    font-size: 11px;
    cursor: pointer;
    margin-top: 8px;
    padding: 0;
}

.mission-hint-toggle:hover {
    color: var(--color-accent);
}

/* RIGHT COLUMN: CARDS & TOOLS */
.arena-tools-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.arena-card {
    background: #0a0a0a;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

/* TERMINAL CARD */
.terminal-card-header {
    background: #141414;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 12px;
    color: #888;
}

.btn-micro-clear {
    background: transparent;
    border: 1px solid #333;
    color: #888;
    font-size: 10px;
    font-family: var(--font-mono);
    cursor: pointer;
    padding: 2px 6px;
}

.btn-micro-clear:hover {
    color: #fff;
    border-color: #666;
}

.arena-terminal-screen {
    background: #050505;
    padding: 15px;
    height: 230px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 12.5px;
    line-height: 1.6;
}

.term-line {
    margin-bottom: 4px;
    word-break: break-all;
}

.term-line.output-cmd {
    color: #fff;
}

.term-line.output-sys {
    color: var(--color-accent);
}

.term-line.output-success {
    color: var(--color-primary);
    font-weight: bold;
}

.term-line.output-err {
    color: var(--color-alert);
}

.terminal-input-row {
    display: flex;
    background: #000;
    border-top: 1px solid var(--border-color);
    padding: 8px 12px;
    align-items: center;
    gap: 8px;
}

.term-prompt {
    font-family: var(--font-mono);
    color: var(--color-primary);
    font-size: 12px;
    white-space: nowrap;
}

#terminal-cmd-input {
    flex: 1;
    background: transparent;
    border: none;
    color: #00ff41;
    font-family: var(--font-mono);
    font-size: 13px;
}

#terminal-cmd-input:focus {
    outline: none;
}

.btn-term-go {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 3px 8px;
    cursor: pointer;
}

.btn-term-go:hover {
    background: var(--color-primary);
    color: #000;
}

/* TOOL CARD */
.tool-card-header {
    background: #141414;
    padding: 10px 15px;
    border-bottom: 1px solid var(--border-color);
}

.tool-card-header h3 {
    margin: 0;
    font-size: 12px;
    color: #fff;
    font-family: var(--font-mono);
}

.tool-body {
    padding: 15px;
}

.tool-input-group label, .tool-output-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: #888;
    margin-bottom: 6px;
}

#quick-input {
    width: 100%;
    background: #000;
    border: 1px solid var(--border-color);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 8px;
    box-sizing: border-box;
    margin-bottom: 10px;
}

.tool-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.btn-tool, .tool-btn {
    background: #111;
    border: 1px solid #333;
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 5px 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-tool:hover, .tool-btn:hover {
    border-color: var(--color-accent);
    background: rgba(0, 206, 209, 0.1);
}

.tool-result-box {
    background: #050505;
    border: 1px solid var(--border-color);
    padding: 10px;
    min-height: 40px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: #00ff41;
    word-break: break-all;
    user-select: all;
}

/* PORT CHEAT SHEET */
.port-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 12px 15px;
}

.port-item {
    background: #050505;
    border: 1px solid #222;
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    display: flex;
    justify-content: space-between;
}

.port-item strong {
    color: var(--color-primary);
}

.port-item span {
    color: #888;
}

/* BADGES SHELF */
.badges-shelf {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 15px;
}

.badge-item {
    background: #050505;
    border: 1px solid #222;
    padding: 8px 12px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: #666;
    transition: all var(--transition-fast);
}

.badge-item.unlocked {
    border-color: var(--color-primary);
    color: #fff;
    background: rgba(0, 255, 65, 0.05);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.15);
}

.badge-item .badge-icon {
    font-size: 1.3rem;
}

/* DOSSIER MODAL */
.arena-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.9);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
}

.arena-modal-content {
    background: #0c0c0c;
    border: 1px solid var(--color-primary);
    box-shadow: 0 0 35px rgba(0, 255, 65, 0.2);
    width: 700px;
    max-width: 100%;
    padding: 30px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: var(--color-alert);
    font-size: 18px;
    cursor: pointer;
    font-weight: bold;
}

.dossier-cert-frame {
    border: 2px solid var(--border-color);
    padding: 30px;
    background: #050505;
    position: relative;
    text-align: center;
}

.cert-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-25deg);
    font-size: 3rem;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.03);
    font-family: var(--font-mono);
    pointer-events: none;
    white-space: nowrap;
}

.cert-tag {
    font-family: var(--font-mono);
    color: var(--color-primary);
    font-size: 11px;
    letter-spacing: 2px;
}

.dossier-cert-frame h2 {
    color: #fff;
    font-size: 1.6rem;
    margin: 8px 0 20px 0;
}

.cert-user-name {
    font-size: 1.8rem;
    color: var(--color-accent);
    font-family: var(--font-mono);
    margin: 10px 0;
}

.cert-text {
    color: #aaa;
    font-size: 13px;
    margin: 5px 0;
}

.cert-meta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 25px 0;
    text-align: left;
}

.meta-box {
    background: #0f0f0f;
    border: 1px solid #222;
    padding: 10px 15px;
    font-family: var(--font-mono);
    font-size: 11.5px;
}

.meta-label {
    display: block;
    color: #777;
    margin-bottom: 4px;
}

.meta-box strong {
    color: #fff;
    font-size: 13px;
}

.cert-footer {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid #222;
    padding-top: 15px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: #666;
}

/* =========================================
   LEADERBOARD & OPERATIVE RANKINGS
   ========================================= */
.leaderboard-section {
    margin-top: 30px;
    background: #0a0a0a;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.leaderboard-header {
    background: #111;
    border-bottom: 1px solid var(--border-color);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.leaderboard-header h2 {
    margin: 0;
    font-size: 1.1rem;
    font-family: var(--font-mono);
    color: #fff;
    letter-spacing: 1px;
}

.leaderboard-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 12.5px;
    text-align: left;
}

.leaderboard-table th {
    background: #0e0e0e;
    color: #888;
    font-size: 11px;
    letter-spacing: 1px;
    padding: 12px 18px;
    border-bottom: 1px solid #222;
}

.leaderboard-table td {
    padding: 12px 18px;
    border-bottom: 1px solid #161616;
    color: #ccc;
}

.leaderboard-table tr:hover td {
    background: rgba(0, 255, 65, 0.03);
}

.lb-rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    font-size: 11.5px;
    font-weight: bold;
    background: #181818;
    border: 1px solid #333;
    color: #888;
}

.lb-rank-1 .lb-rank-badge {
    background: #ffd700;
    color: #000;
    border-color: #ffd700;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.4);
}

.lb-rank-2 .lb-rank-badge {
    background: #c0c0c0;
    color: #000;
    border-color: #c0c0c0;
    box-shadow: 0 0 10px rgba(192, 192, 192, 0.4);
}

.lb-rank-3 .lb-rank-badge {
    background: #cd7f32;
    color: #000;
    border-color: #cd7f32;
    box-shadow: 0 0 10px rgba(205, 127, 50, 0.4);
}

.lb-operative-name {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-weight: bold;
}

.lb-tag-you {
    background: var(--color-primary);
    color: #000;
    font-size: 9.5px;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 2px;
    letter-spacing: 1px;
}

.lb-row-you {
    background: rgba(0, 255, 65, 0.06) !important;
    border-left: 3px solid var(--color-primary);
}

.lb-row-you td {
    color: #fff;
}

.lb-specialty {
    font-size: 11px;
    color: var(--color-accent);
}

.lb-xp-val {
    color: var(--color-primary);
    font-weight: bold;
}

.callsign-input-box {
    display: flex;
    gap: 8px;
    align-items: center;
}

.callsign-input {
    background: #000;
    border: 1px solid #333;
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 11.5px;
    padding: 5px 8px;
    border-radius: 2px;
    outline: none;
}

.callsign-input:focus {
    border-color: var(--color-primary);
}

/* ==========================================================
   ARENA MODE SWITCHER (CTF MISSIONS vs OPERATIVE ACADEMY)
   ========================================================== */
.arena-mode-switcher {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 10px;
    margin-bottom: 25px;
}

.arena-mode-tab {
    flex: 1;
    min-width: 260px;
    background: rgba(10, 15, 20, 0.8);
    border: 1px solid var(--border-color);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 700;
    padding: 14px 20px;
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.arena-mode-tab:hover {
    border-color: var(--color-primary);
    color: #fff;
    background: rgba(0, 255, 65, 0.05);
}

.arena-mode-tab.active {
    background: rgba(0, 255, 65, 0.12);
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.15);
}

/* ==========================================================
   OPERATIVE ACADEMY LAYOUT & VISUALIZERS
   ========================================================== */
.academy-track-section {
    background: rgba(8, 12, 18, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 28px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.academy-track-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(0, 255, 65, 0.2);
    padding-bottom: 14px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.academy-track-title {
    font-family: var(--font-mono);
    color: #fff;
    font-size: 1.3rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.academy-track-title span {
    color: var(--color-primary);
}

.academy-badge-tag {
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 3px;
    letter-spacing: 0.8px;
}

.academy-body-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 24px;
}

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

.academy-text-col p {
    color: #cbd5e1;
    font-size: 13.5px;
    line-height: 1.7;
    margin-bottom: 14px;
}

.academy-text-col ul {
    color: #94a3b8;
    font-size: 13px;
    line-height: 1.6;
    padding-left: 20px;
    margin-bottom: 16px;
}

.academy-visualizer-card {
    background: #030712;
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 6px;
    padding: 16px;
    display: flex;
    flex-direction: column;
}

.vis-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: #38bdf8;
    border-bottom: 1px dashed rgba(56, 189, 248, 0.2);
    padding-bottom: 8px;
}

.vis-canvas-wrap {
    background: #050a14;
    border: 1px solid #1e293b;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    margin-bottom: 12px;
}

.vis-canvas-wrap canvas {
    width: 100%;
    height: auto;
    display: block;
}

.vis-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.btn-vis {
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid #38bdf8;
    color: #38bdf8;
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 6px 12px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-vis:hover {
    background: #38bdf8;
    color: #000;
}

.btn-vis-active {
    background: #38bdf8;
    color: #000;
    font-weight: bold;
}

/* Subnetting & Octal Perm Styles */
.cidr-calc-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 10px;
}

.cidr-stat-box {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid #334155;
    padding: 10px;
    border-radius: 4px;
    text-align: center;
}

.cidr-stat-label {
    font-size: 10.5px;
    color: #64748b;
    font-family: var(--font-mono);
    display: block;
}

.cidr-stat-val {
    font-size: 13px;
    color: #38bdf8;
    font-family: var(--font-mono);
    font-weight: bold;
    margin-top: 4px;
    display: block;
}

/* Octal Perm Grid */
.chmod-matrix-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 12px;
    margin-top: 10px;
}

.chmod-matrix-table th,
.chmod-matrix-table td {
    border: 1px solid #334155;
    padding: 6px 10px;
    text-align: center;
}

.chmod-matrix-table th {
    background: #0f172a;
    color: var(--color-primary);
}

/* ==========================================================
   MOBILE & TABLET UI/UX RESPONSIVENESS ENHANCEMENTS
   ========================================================== */
@media (max-width: 768px) {
    .arena-main {
        padding: 15px 0 40px 0;
    }

    .arena-hud {
        padding: 18px;
        gap: 15px;
    }

    .hud-title {
        font-size: 1.6rem;
    }

    .hud-player-card {
        width: 100%;
        padding: 12px 15px;
        min-width: unset;
    }

    .arena-mode-switcher {
        flex-direction: column;
    }

    .arena-mode-tab {
        width: 100%;
        min-width: unset;
        padding: 12px 14px;
        font-size: 12px;
    }

    .academy-track-section {
        padding: 16px;
        margin-bottom: 20px;
    }

    .academy-track-title {
        font-size: 1.1rem;
    }

    .vis-controls {
        justify-content: center;
    }

    .btn-vis {
        flex: 1 1 45%;
        text-align: center;
    }

    .cidr-calc-grid {
        grid-template-columns: 1fr;
    }

    .chmod-matrix-table {
        font-size: 11px;
    }

    .chmod-matrix-table th,
    .chmod-matrix-table td {
        padding: 4px 6px;
    }
}

@media (max-width: 480px) {
    .port-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hud-title {
        font-size: 1.35rem;
    }

    .player-rank-badge {
        width: 50px;
        height: 50px;
        font-size: 1.8rem;
    }

    .btn-vis {
        flex: 1 1 100%;
    }

    .leaderboard-header h2 {
        font-size: 0.95rem;
    }

    .dh-interactive-grid {
        grid-template-columns: 1fr;
    }

    .mitre-dual-grid {
        grid-template-columns: 1fr;
    }

    .ai-sandbox-split {
        grid-template-columns: 1fr;
    }

    .cpu-registers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================================
   ACADEMY ADVANCED MODULES & QUIZ STYLING
   ========================================================== */

/* 1. SQL AST Sandbox */
.sql-ast-box {
    background: #020617;
    border: 1px solid #1e293b;
    border-radius: 4px;
    padding: 10px 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.6;
    word-break: break-all;
}
.sql-ast-node {
    display: inline-block;
    padding: 1px 4px;
    border-radius: 2px;
    margin: 1px;
}
.sql-ast-safe {
    background: rgba(52, 211, 153, 0.15);
    color: #34d399;
    border: 1px solid rgba(52, 211, 153, 0.3);
}
.sql-ast-vuln {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.4);
    font-weight: bold;
}

/* 2. Knowledge Check Quiz Component */
.academy-quiz-box {
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 6px;
    padding: 14px;
    margin-top: 15px;
    box-shadow: inset 0 0 15px rgba(56, 189, 248, 0.05);
}
.quiz-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 10.5px;
    font-weight: 700;
    color: #38bdf8;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}
.quiz-question {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: #f8fafc;
    margin-bottom: 10px;
    line-height: 1.4;
}
.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.quiz-opt {
    background: #0f172a;
    border: 1px solid #334155;
    color: #cbd5e1;
    padding: 8px 12px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    text-align: left;
    cursor: pointer;
    transition: all 0.15s ease;
}
.quiz-opt:hover:not(:disabled) {
    border-color: #38bdf8;
    background: rgba(56, 189, 248, 0.1);
    color: #fff;
    transform: translateX(3px);
}
.quiz-opt.correct {
    background: rgba(34, 197, 94, 0.2) !important;
    border-color: #22c55e !important;
    color: #4ade80 !important;
    font-weight: 700;
}
.quiz-opt.incorrect {
    background: rgba(239, 68, 68, 0.2) !important;
    border-color: #ef4444 !important;
    color: #f87171 !important;
}
.quiz-feedback {
    margin-top: 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
}

/* 3. Virtual CPU Registers Grid */
.cpu-registers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-bottom: 10px;
}
.cpu-reg-box {
    background: #020617;
    border: 1px solid #1e293b;
    padding: 6px 8px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 11px;
    display: flex;
    justify-content: space-between;
}
.reg-name {
    color: #64748b;
    font-weight: 700;
}
.reg-val {
    color: #38bdf8;
    font-weight: 600;
}

/* 4. Disassembly Trace Window */
.disasm-trace-box {
    background: #020617;
    border: 1px solid #1e293b;
    border-radius: 4px;
    padding: 8px 10px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 11px;
    line-height: 1.6;
}
.asm-line {
    padding: 2px 6px;
    border-radius: 2px;
    transition: background 0.15s ease;
}
.asm-line.active {
    background: rgba(56, 189, 248, 0.2);
    border-left: 3px solid #38bdf8;
    color: #fff;
    font-weight: bold;
}
.asm-addr {
    color: #64748b;
    margin-right: 6px;
}
.asm-mnem {
    color: #f59e0b;
    font-weight: 700;
    margin-right: 4px;
}
.asm-oper {
    color: #e2e8f0;
}
.asm-comment {
    color: #475569;
    font-style: italic;
    margin-left: 8px;
}

/* 5. Diffie-Hellman Color & Math Simulator */
.dh-interactive-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: 8px;
    margin-top: 10px;
}
.dh-party-box {
    background: #090d16;
    border: 1px solid #1e293b;
    padding: 10px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
}
.dh-title {
    display: block;
    font-weight: 700;
    color: #38bdf8;
    margin-bottom: 8px;
}
.dh-param label {
    display: block;
    font-size: 10px;
    color: #94a3b8;
    margin-bottom: 2px;
}
.dh-calc {
    margin-top: 8px;
    color: #cbd5e1;
    font-size: 10.5px;
}
.dh-secret {
    margin-top: 8px;
    font-weight: 700;
    color: #f8fafc;
    font-size: 11px;
    border-top: 1px dashed #334155;
    padding-top: 6px;
}
.dh-val {
    color: #fbbf24;
    font-weight: 700;
}
.dh-val-match {
    color: #34d399;
    font-weight: 700;
    font-size: 13px;
    text-shadow: 0 0 8px rgba(52, 211, 153, 0.5);
}
.dh-channel-box {
    background: #020617;
    border: 1px dashed #334155;
    padding: 10px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 10.5px;
    text-align: center;
}
.dh-channel-title {
    color: #ef4444;
    font-weight: 700;
    display: block;
    margin-bottom: 4px;
}
.dh-public-spec {
    color: #64748b;
    margin-bottom: 6px;
}
.dh-wire-wire {
    color: #38bdf8;
    font-weight: bold;
    font-size: 10px;
    margin: 6px 0;
}
.dh-eavesdropper {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 6px;
    border-radius: 3px;
    color: #f87171;
    font-size: 9.5px;
}

/* 6. MITRE ATT&CK Matrix Explorer */
.mitre-pills-bar {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}
.mitre-pill {
    background: #090d16;
    border: 1px solid #1e293b;
    color: #94a3b8;
    padding: 5px 8px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.mitre-pill:hover,
.mitre-pill.active {
    background: rgba(56, 189, 248, 0.15);
    border-color: #38bdf8;
    color: #fff;
    font-weight: 700;
}
.mitre-technique-display {
    background: #020617;
    border: 1px solid #1e293b;
    padding: 12px;
    border-radius: 4px;
    font-family: var(--font-mono);
}
.mitre-dual-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.mitre-offense-box,
.mitre-defense-box {
    background: #090d16;
    border: 1px solid #1e293b;
    padding: 8px;
    border-radius: 3px;
}

/* 7. AI Red Teaming Sandbox */
.ai-sandbox-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 10px;
}
.ai-box-unprotected,
.ai-box-protected {
    background: #020617;
    border: 1px solid #1e293b;
    border-radius: 4px;
    padding: 10px;
    font-family: var(--font-mono);
    font-size: 11px;
}
.ai-box-unprotected {
    border-color: rgba(239, 68, 68, 0.4);
}
.ai-box-protected {
    border-color: rgba(52, 211, 153, 0.4);
}
.ai-box-tag {
    font-weight: 700;
    font-size: 10.5px;
    margin-bottom: 6px;
}
.ai-box-response {
    color: #e2e8f0;
    line-height: 1.5;
    font-size: 10.5px;
}

/* ==========================================================
   OWASP TOP 10 FOR LLMS & METASPLOIT (MSF) MATRIX STYLES
   ========================================================== */

/* 4-Pillar Mode Switcher — consolidated above in ARENA MODE SWITCHER section */

.arena-mode-tab {
    background: #0a0f0a;
    border: 1px solid #1a2a1a;
    color: #888;
    padding: 14px 18px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
    text-align: center;
}

.arena-mode-tab:hover {
    border-color: var(--color-primary);
    color: #fff;
    background: #111a11;
}

.arena-mode-tab.active {
    background: rgba(0, 255, 65, 0.12);
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.2);
}

#tab-owasp-llm-btn.active {
    background: rgba(56, 189, 248, 0.12);
    border-color: #38bdf8;
    color: #38bdf8;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.25);
}

#tab-owasp-web-msf-btn.active {
    background: rgba(239, 68, 68, 0.12);
    border-color: #ef4444;
    color: #f87171;
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.25);
}

/* OWASP Hub Header */
.owasp-hub-header {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(3, 7, 18, 0.98));
    border: 1px solid #1e293b;
    border-radius: 6px;
    padding: 25px 30px;
    margin-bottom: 25px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.6);
}

.owasp-header-badge {
    display: inline-block;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid #38bdf8;
    color: #38bdf8;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 3px;
    margin-bottom: 10px;
}

.owasp-hub-title {
    color: #ffffff;
    font-size: 1.8rem;
    font-weight: 800;
    margin: 0 0 8px 0;
}

.owasp-hub-subtitle {
    color: #94a3b8;
    font-size: 13.5px;
    line-height: 1.6;
    margin: 0;
}

/* Labs Grid */
.owasp-labs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.owasp-lab-card {
    background: #020617;
    border: 1px solid #1e293b;
}

.lab-pill-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    background: rgba(56, 189, 248, 0.15);
    color: #38bdf8;
    padding: 2px 8px;
    border-radius: 2px;
    font-weight: 700;
}

.lab-desc {
    color: #cbd5e1;
    font-size: 12px;
    line-height: 1.5;
    margin-bottom: 12px;
}

/* Guardrail Toggle */
.guardrail-toggle-row {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.mode-toggle-btn {
    background: #0f172a;
    border: 1px solid #334155;
    color: #94a3b8;
    font-family: var(--font-mono);
    font-size: 10.5px;
    padding: 4px 10px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.2s;
}

.mode-toggle-btn.active {
    background: rgba(56, 189, 248, 0.2);
    border-color: #38bdf8;
    color: #38bdf8;
}

#llm-guard-off.active {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #f87171;
}

/* Preset Attacks */
.preset-attacks-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 12px;
}

.attack-preset-btn {
    background: #0f172a;
    border: 1px solid #1e293b;
    color: #38bdf8;
    font-family: var(--font-mono);
    font-size: 10.5px;
    padding: 3px 8px;
    border-radius: 2px;
    cursor: pointer;
}

.attack-preset-btn:hover {
    background: rgba(56, 189, 248, 0.15);
    border-color: #38bdf8;
}

/* LLM Input / Output Area */
.llm-input-area label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: #64748b;
    display: block;
    margin-bottom: 4px;
}

.llm-input-area textarea {
    width: 100%;
    background: #000000;
    border: 1px solid #1e293b;
    color: #e2e8f0;
    font-family: var(--font-mono);
    font-size: 11.5px;
    padding: 8px 10px;
    border-radius: 4px;
    margin-bottom: 8px;
    resize: vertical;
}

.btn-tool-execute {
    background: #0284c7;
    color: #fff;
    border: 1px solid #38bdf8;
    font-family: var(--font-mono);
    font-size: 11.5px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-tool-execute:hover {
    background: #0369a1;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.4);
}

.llm-output-hud {
    background: #000000;
    border: 1px solid #1e293b;
    border-radius: 4px;
    padding: 10px;
    margin-top: 12px;
    font-family: var(--font-mono);
    font-size: 11.5px;
}

.hud-status-line {
    display: flex;
    justify-content: space-between;
    padding-bottom: 6px;
    border-bottom: 1px dashed #1e293b;
    margin-bottom: 8px;
    font-size: 10.5px;
    color: #64748b;
}

.hud-response-box {
    background: #020617;
    border: 1px solid #1e293b;
    padding: 10px;
    border-radius: 3px;
    color: #e2e8f0;
    font-family: var(--font-mono);
    font-size: 11.5px;
    line-height: 1.6;
    max-height: 180px;
    overflow-y: auto;
}

.secret-target-box {
    background: #090d16;
    border: 1px solid #1e293b;
    padding: 8px 12px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: #38bdf8;
}

/* Agency Demo Grid */
.agency-demo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 15px;
    margin-top: 10px;
}

/* OWASP Curriculum Tracks */
.owasp-curriculum-section {
    margin-bottom: 35px;
}

.owasp-track-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.owasp-track-card {
    background: #0a0f1d;
    border: 1px solid #1e293b;
    border-radius: 6px;
    padding: 18px 22px;
    transition: all 0.2s;
}

.owasp-track-card:hover {
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.08);
}

.owasp-track-header-row {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 12px;
    border-bottom: 1px dashed #1e293b;
    padding-bottom: 10px;
}

.owasp-num {
    background: #0284c7;
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: 3px;
}

.owasp-info h3 {
    margin: 0 0 4px 0;
    font-size: 1.15rem;
    color: #ffffff;
}

.owasp-tag-crit {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 2px;
    font-family: var(--font-mono);
}

.owasp-tag-high {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 2px;
    font-family: var(--font-mono);
}

.owasp-tag-med {
    background: rgba(56, 189, 248, 0.2);
    color: #38bdf8;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 2px;
    font-family: var(--font-mono);
}

.owasp-track-body p {
    color: #cbd5e1;
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 12px;
}

.solution-code-box {
    background: #000000;
    border: 1px solid #1e293b;
    border-radius: 4px;
    padding: 12px 14px;
    font-family: var(--font-mono);
}

.solution-title {
    font-size: 11px;
    font-weight: 700;
    color: #34d399;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.solution-code-box pre {
    margin: 0;
    overflow-x: auto;
}

.solution-code-box code {
    color: #38bdf8;
    font-size: 11.5px;
    line-height: 1.5;
}

/* ==========================================================
   METASPLOIT (MSF) TERMINAL STYLES
   ========================================================== */
.msf-terminal-card {
    background: #000000;
    border: 1px solid #ef4444;
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.15);
}

.msf-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #110505;
    border-bottom: 1px solid #2a0c0c;
    padding: 8px 14px;
    flex-wrap: wrap;
    gap: 10px;
}

.msf-terminal-title {
    font-family: var(--font-mono);
    color: #f87171;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.msf-terminal-screen {
    padding: 14px 18px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    min-height: 280px;
    max-height: 380px;
    overflow-y: auto;
    background: #030101;
    color: #e2e8f0;
}

.msf-line.sys {
    color: #94a3b8;
}

.msf-line.success {
    color: #34d399;
}

.msf-line.crit {
    color: #f87171;
    font-weight: bold;
}

.msf-line.warn {
    color: #fbbf24;
}

.msf-quick-commands {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    padding: 8px 14px;
    background: #090202;
    border-top: 1px solid #1a0808;
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: #666;
}

.msf-quick-commands button {
    background: #140404;
    border: 1px solid #331111;
    color: #fca5a5;
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 2px 7px;
    border-radius: 2px;
    cursor: pointer;
}

.msf-quick-commands button:hover {
    border-color: #ef4444;
    color: #fff;
    background: #2a0c0c;
}

.msf-input-row {
    display: flex;
    align-items: center;
    background: #000;
    border-top: 1px solid #2a0c0c;
    padding: 8px 14px;
    gap: 8px;
}

.msf-prompt {
    color: #ef4444;
    font-family: var(--font-mono);
    font-size: 12.5px;
    font-weight: bold;
    white-space: nowrap;
}

.msf-input-row input {
    flex: 1;
    background: transparent;
    border: none;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 12.5px;
    outline: none;
}

.btn-msf-exec {
    background: #ef4444;
    color: #fff;
    border: none;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: bold;
    padding: 5px 12px;
    border-radius: 2px;
    cursor: pointer;
}

.btn-msf-exec:hover {
    background: #dc2626;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
}

/* MSFVenom Controls Grid */
.msfvenom-controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 12px;
}

.msf-control-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: #888;
    margin-bottom: 4px;
}

.msf-control-group select,
.msf-control-group input {
    width: 100%;
    background: #000;
    border: 1px solid #333;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 11.5px;
    padding: 6px 8px;
    border-radius: 3px;
}

.code-terminal-snippet {
    background: #000;
    border: 1px solid #ef4444;
    color: #34d399;
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    border-radius: 3px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* JWT Editor Grid */
.jwt-editor-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

@media (max-width: 640px) {
    .jwt-editor-grid {
        grid-template-columns: 1fr;
    }
}

/* Learning-First Mission Concept Drawer & Onboarding Banner */
.arena-onboarding-banner {
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.arena-onboarding-banner:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.1);
}

.mission-concept-toggle {
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.mission-concept-toggle:hover {
    background: rgba(56, 189, 248, 0.2) !important;
    border-color: #38bdf8 !important;
    color: #ffffff !important;
}

.mission-concept-box {
    animation: fadeInConcept 0.25s ease-out;
}

@keyframes fadeInConcept {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}