/* Combined Assessment Platform — Dark theme */
:root {
    --bg-primary: #1a1a2e; --bg-secondary: #16213e; --bg-tertiary: #0f3460;
    --bg-panel: #1e2a3a; --bg-input: #2a3a4a;
    --text-primary: #e0e0e0; --text-secondary: #a0a0b0; --text-muted: #606070;
    --accent: #00b4d8; --accent-hover: #0096c7;
    --success: #2ecc71; --warning: #f39c12; --danger: #e74c3c;
    --border: #2a3a4a;
    --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-sans); background: var(--bg-primary); color: var(--text-primary); height: 100vh; display: flex; flex-direction: column; overflow: hidden; }

/* LOGIN */
.login-screen { position: fixed; inset: 0; z-index: 10000; display: flex; align-items: center; justify-content: center; background: var(--bg-primary); }
.login-box { background: var(--bg-panel); border: 1px solid var(--border); border-radius: 12px; padding: 40px; width: 360px; text-align: center; box-shadow: 0 8px 32px rgba(0,0,0,0.4); }
.login-box h1 { color: var(--accent); font-size: 22px; margin-bottom: 8px; }
.login-box p { color: var(--text-secondary); font-size: 13px; margin-bottom: 24px; }
.login-box label { display: block; text-align: left; color: var(--text-secondary); font-size: 12px; margin-bottom: 4px; margin-top: 12px; }
.login-box input { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg-input); color: var(--text-primary); font-size: 14px; }
.login-box input:focus { outline: none; border-color: var(--accent); }
.login-box button { width: 100%; padding: 12px; margin-top: 20px; background: var(--accent); border: none; border-radius: 6px; color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; }
.login-box button:hover { background: var(--accent-hover); }
.login-error { color: var(--danger); font-size: 12px; margin-top: 10px; min-height: 16px; }

/* ADMIN */
.admin-overlay { position: fixed; inset: 0; z-index: 9000; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0.7); }
.admin-panel { background: var(--bg-panel); border: 1px solid var(--border); border-radius: 12px; width: 95vw; max-width: 1200px; max-height: 85vh; overflow-y: auto; }
.admin-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; border-bottom: 1px solid var(--border); }
.admin-header h2 { font-size: 18px; }
.admin-title { display: flex; align-items: center; gap: 8px; }
.admin-close { background: none; border: none; color: var(--text-secondary); font-size: 24px; cursor: pointer; }
.admin-tabs { display: flex; gap: 0; margin-left: 24px; }
.admin-tab { padding: 8px 18px; background: none; border: none; border-bottom: 2px solid transparent; color: var(--text-secondary); cursor: pointer; font-size: 13px; font-weight: 600; transition: color 0.2s, border-color 0.2s; }
.admin-tab:hover { color: var(--text-primary); }
.admin-tab.active { color: var(--text-primary); border-bottom-color: var(--accent); }
.admin-tab-pane { display: none; }
.admin-tab-pane.active { display: block; }
.admin-fullpage { background: var(--bg-primary); }
.admin-fullpage .admin-panel { width: 100%; max-width: 1200px; max-height: 100vh; border: none; border-radius: 0; }
.admin-logout-btn { padding: 6px 16px; background: var(--danger); border: none; border-radius: 6px; color: #fff; font-weight: 600; cursor: pointer; font-size: 13px; }
.admin-content { padding: 20px 24px; }
.admin-content h3 { color: var(--text-secondary); font-size: 13px; text-transform: uppercase; margin: 20px 0 10px; }
.admin-content h3:first-child { margin-top: 0; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.admin-table th { text-align: left; padding: 6px; color: var(--text-secondary); border-bottom: 1px solid var(--border); font-size: 10px; text-transform: uppercase; }
.admin-table td { padding: 6px; border-bottom: 1px solid var(--border); }
.admin-table tr.inactive td { opacity: 0.4; }
.progress-complete { color: var(--success); text-align: center; font-weight: 700; }
.progress-partial { color: var(--warning); text-align: center; }
.progress-none { color: var(--text-muted); text-align: center; }
.score-total { font-weight: 700; color: var(--accent); }
.admin-actions button { padding: 3px 8px; font-size: 10px; border-radius: 3px; background: var(--bg-input); border: 1px solid var(--border); color: var(--text-primary); cursor: pointer; margin-left: 2px; }
.admin-actions button.danger { color: var(--danger); border-color: var(--danger); }
.admin-create-form { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--border); }
.form-row { display: flex; gap: 8px; align-items: center; }
.form-row input, .form-row select { padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg-input); color: var(--text-primary); font-size: 13px; }
.form-row input { flex: 1; }
.form-row button { padding: 8px 16px; background: var(--accent); border: none; border-radius: 6px; color: #fff; font-weight: 600; cursor: pointer; }
.admin-result { margin-top: 10px; font-size: 13px; }
.admin-result .success { color: var(--success); }
.admin-result .error { color: var(--danger); }
.admin-empty { color: var(--text-muted); font-size: 13px; }
.access-code { background: var(--bg-input); padding: 3px 6px; border-radius: 3px; font-family: monospace; font-size: 12px; user-select: all; }
.access-code-toggle { cursor: pointer; }
.access-code-toggle[data-hidden="true"] { color: var(--text-muted); letter-spacing: 2px; }
.copy-btn { padding: 2px 6px; font-size: 9px; border-radius: 3px; background: var(--bg-tertiary); border: 1px solid var(--border); color: var(--text-secondary); cursor: pointer; margin-left: 3px; }

/* APP LAYOUT */
#app { display: flex; flex-direction: column; height: 100vh; }
#top-bar { flex-shrink: 0; height: 48px; background: var(--bg-secondary); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; padding: 0 16px; gap: 16px; z-index: 10; }
.top-bar-left { display: flex; align-items: center; gap: 12px; }
.logo { color: var(--accent); font-size: 16px; font-weight: 700; letter-spacing: 1px; font-family: var(--font-mono); }
.logo-sub { color: var(--text-muted); font-size: 12px; }
.top-bar-right { display: flex; align-items: center; gap: 12px; }
.user-display { color: var(--text-secondary); font-size: 12px; }
.total-score { color: var(--accent); font-size: 12px; font-weight: 600; font-family: var(--font-mono); }
.top-bar-btn { padding: 4px 12px; font-size: 11px; border-radius: 4px; background: var(--bg-input); border: 1px solid var(--border); color: var(--text-primary); cursor: pointer; }
#main-content { flex: 1; min-height: 0; display: flex; overflow: hidden; }

/* === DASHBOARD === */
.dashboard-view { flex: 1; overflow-y: auto; padding: 32px; display: flex; justify-content: center; }
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; max-width: 1200px; width: 100%; align-content: start; }
.dashboard-card { background: var(--bg-panel); border: 1px solid var(--border); border-top: 3px solid var(--accent); border-radius: 10px; padding: 24px; display: flex; flex-direction: column; gap: 10px; transition: transform 0.15s, box-shadow 0.15s; }
.dashboard-card:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,0,0,0.3); }
.card-icon { font-size: 28px; }
.card-title { font-size: 16px; font-weight: 600; color: var(--text-primary); }
.card-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.5; flex: 1; }
.card-score { display: flex; justify-content: space-between; align-items: center; }
.score-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; }
.score-value { font-size: 14px; font-weight: 700; font-family: var(--font-mono); color: var(--text-primary); }
.card-progress { height: 6px; background: var(--bg-input); border-radius: 3px; overflow: hidden; }
.progress-bar { height: 100%; border-radius: 3px; transition: width 0.3s; }
.card-meta { font-size: 11px; color: var(--text-muted); }
.btn-enter { padding: 8px 16px; background: var(--accent); border: none; border-radius: 6px; color: #fff; font-size: 13px; font-weight: 600; cursor: pointer; margin-top: 4px; }
.btn-enter:hover { opacity: 0.9; }

/* === CHALLENGE SET VIEW === */
#challengeset-view { flex: 1; display: flex; overflow: hidden; }
.left-panel { width: 260px; min-width: 220px; background: var(--bg-secondary); border-right: 1px solid var(--border); display: flex; flex-direction: column; flex-shrink: 0; }
.panel-header { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.panel-header h3 { font-size: 13px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }
.btn-back { background: none; border: none; color: var(--accent); font-size: 12px; cursor: pointer; margin-bottom: 8px; padding: 0; }
.btn-back:hover { text-decoration: underline; }
.challenge-list { flex: 1; overflow-y: auto; padding: 8px; }
.challenge-item { padding: 10px 12px; border-radius: 6px; cursor: pointer; margin-bottom: 4px; border: 1px solid transparent; transition: all 0.15s; }
.challenge-item:hover { background: var(--bg-panel); border-color: var(--border); }
.challenge-item.selected { background: var(--bg-panel); border-color: var(--accent); }
.challenge-item.completed .challenge-item-title { color: var(--text-muted); }
.challenge-item-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; gap: 4px; }
.challenge-level { font-size: 10px; color: var(--text-muted); text-transform: uppercase; }
.challenge-item-title { font-size: 13px; font-weight: 500; }
.challenge-item-status { font-size: 11px; color: var(--success); margin-top: 4px; }
.challenge-item-saved { font-size: 11px; color: var(--warning); margin-top: 2px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 3px; font-size: 10px; font-weight: 700; text-transform: uppercase; }
.badge-easy { background: rgba(46,204,113,0.15); color: var(--success); }
.badge-medium { background: rgba(243,156,18,0.15); color: var(--warning); }
.badge-hard { background: rgba(231,76,60,0.15); color: var(--danger); }
.badge-expert { background: rgba(155,89,182,0.15); color: #9b59b6; }

/* RIGHT PANEL */
.right-panel { flex: 1; overflow-y: auto; padding: 24px 32px; }
.challenge-detail { max-width: 1100px; }
.placeholder-text { color: var(--text-muted); font-size: 13px; padding: 60px 0; text-align: center; }
.detail-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.detail-header h2 { font-size: 18px; }
.detail-description { color: var(--text-secondary); font-size: 13px; line-height: 1.6; margin-bottom: 24px; }
.challenge-detail h3 { font-size: 13px; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; margin-top: 24px; }
.detail-instructions { padding-left: 20px; margin-bottom: 16px; }
.detail-instructions li { font-size: 13px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 4px; }
.format-box { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 6px; padding: 12px 16px; font-size: 13px; overflow-x: auto; margin-bottom: 16px; font-family: var(--font-mono); }
.detail-actions { margin-top: 16px; margin-bottom: 16px; display: flex; gap: 8px; }
.btn-accent { padding: 10px 24px; background: var(--accent); border: none; border-radius: 6px; color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; }
.btn-accent:hover { background: var(--accent-hover); }
.btn-accent:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-reset { padding: 10px 24px; background: var(--bg-input); border: 1px solid var(--warning); border-radius: 6px; color: var(--warning); font-size: 14px; font-weight: 600; cursor: pointer; }
.btn-evaluate { padding: 10px 24px; background: var(--success); border: none; border-radius: 6px; color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; }
.config-info { margin-bottom: 12px; }
.config-item { font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.config-hint { color: var(--warning); font-style: italic; }

/* LOG VIEWER */
.log-tabs, .file-tabs { display: flex; gap: 4px; margin-bottom: 8px; flex-wrap: wrap; }
.log-tab, .file-tab { padding: 6px 14px; background: var(--bg-input); border: 1px solid var(--border); border-radius: 4px; color: var(--text-secondary); font-size: 12px; cursor: pointer; font-family: var(--font-mono); }
.log-tab:hover, .file-tab:hover { background: var(--bg-tertiary); }
.log-tab.active, .file-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.log-toolbar { display: flex; gap: 8px; margin-bottom: 8px; align-items: center; }
.log-filter-input { flex: 1; min-width: 200px; padding: 6px 10px; background: var(--bg-input); border: 1px solid var(--border); border-radius: 4px; color: var(--text-primary); font-size: 12px; font-family: var(--font-mono); }
.log-filter-input:focus { outline: none; border-color: var(--accent); }
.log-count { font-size: 11px; color: var(--text-muted); }
.log-content { background: #0d0d1a; border: 1px solid var(--border); border-radius: 6px; padding: 12px 16px; font-size: 11px; color: var(--text-secondary); overflow: auto; max-height: 500px; white-space: pre; font-family: var(--font-mono); line-height: 1.5; }
.tool-tabs { display: flex; gap: 4px; margin-bottom: 8px; flex-wrap: wrap; }
.tool-tab { padding: 5px 12px; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 4px; color: var(--text-muted); font-size: 11px; cursor: pointer; }
.tool-tab:hover { color: var(--text-primary); }
.tool-tab.active { color: var(--accent); border-color: var(--accent); }
.artifact-content { background: #0d0d1a; border: 1px solid var(--border); border-radius: 6px; padding: 12px 16px; font-size: 11px; color: var(--text-secondary); overflow: auto; max-height: 500px; white-space: pre; font-family: var(--font-mono); }

/* RULE EDITOR (suricata) */
.rule-editor { width: 100%; min-height: 140px; max-height: 300px; padding: 12px 16px; background: #0d0d1a; border: 1px solid var(--border); border-radius: 6px; color: #7fdbca; font-family: var(--font-mono); font-size: 13px; resize: vertical; line-height: 1.6; }
.rule-editor:focus { outline: none; border-color: var(--accent); }
.editor-actions { display: flex; gap: 8px; margin: 12px 0; }
/* SURICATA RULE TEMPLATES */
.rule-templates { margin-bottom: 12px; }
.rule-templates summary { font-size: 13px; font-weight: 600; color: var(--accent); cursor: pointer; padding: 8px 0; user-select: none; }
.rule-templates summary:hover { color: #33c7e8; }
.template-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 8px 0; }
.template-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; }
.template-name { font-size: 12px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.template-code { font-family: var(--font-mono); font-size: 11px; color: var(--text-secondary); margin: 0; white-space: pre-wrap; word-break: break-all; cursor: pointer; padding: 6px 8px; background: var(--bg-input); border-radius: 4px; transition: border-color 0.2s; border: 1px solid transparent; }
.template-code:hover { border-color: var(--accent); }
.template-hint { font-size: 11px; color: var(--text-muted); margin: 6px 0 4px; font-style: italic; }

.parse-errors { margin-top: 8px; }
.parse-error { color: var(--danger); font-size: 12px; font-family: var(--font-mono); }
.packet-list { max-height: 400px; overflow-y: auto; margin-top: 12px; }
.packet-summary { font-size: 13px; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.packet-item { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 4px; margin-bottom: 6px; padding: 8px 10px; }
.packet-item.packet-alert { border-color: rgba(46,204,113,0.4); background: rgba(46,204,113,0.05); }
.packet-display { font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); margin: 0; white-space: pre-wrap; word-break: break-all; }
.packet-alert-msg { font-family: var(--font-mono); font-size: 12px; color: var(--success); margin-top: 4px; font-weight: 600; }
.packet-empty { font-size: 13px; color: var(--text-muted); padding: 12px; text-align: center; }

/* TERMINAL (linux) */
.terminal-output { background: #0d0d1a; border: 1px solid var(--border); border-radius: 6px 6px 0 0; padding: 12px; min-height: 300px; max-height: 500px; overflow-y: auto; font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.terminal-input-row { display: flex; background: #0d0d1a; border: 1px solid var(--border); border-top: none; border-radius: 0 0 6px 6px; padding: 8px 12px; }
.terminal-prompt { color: var(--success); font-family: var(--font-mono); font-size: 13px; white-space: pre; }
.terminal-input { flex: 1; background: transparent; border: none; color: var(--text-primary); font-family: var(--font-mono); font-size: 13px; outline: none; }
.term-line { margin-bottom: 2px; }
.term-prompt { color: var(--success); }
.term-output { margin: 4px 0; color: var(--text-secondary); }
.term-info { color: var(--accent); font-weight: 600; }
.term-pass { color: var(--success); }
.term-fail { color: var(--danger); }

/* ANSWER INPUT */
.answer-input { width: 100%; min-height: 120px; padding: 12px 16px; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 6px; color: var(--text-primary); font-family: var(--font-mono); font-size: 13px; resize: vertical; }
.answer-input:focus { outline: none; border-color: var(--accent); }

/* RESULTS */
.val-pass { color: var(--success); padding: 4px 0; font-size: 13px; }
.val-fail { color: var(--danger); padding: 4px 0; font-size: 13px; }
.val-summary { margin-top: 8px; font-weight: 600; padding-top: 8px; border-top: 1px solid var(--border); font-size: 14px; }

/* SCROLLBAR */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* LINUX CHECKLIST */
.linux-checklist { margin-bottom: 16px; }
.checklist-title { font-size: 15px; font-weight: 700; color: var(--accent); margin-bottom: 10px; text-transform: none; letter-spacing: 0; }
.checklist { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.checklist li { font-size: 13px; padding: 8px 12px; border-radius: 6px; background: var(--bg-secondary); border: 1px solid var(--border); transition: all 0.3s; display: flex; align-items: center; gap: 10px; }
.checklist li.check-pending { color: var(--text-muted); }
.checklist li.check-pass { color: var(--success); background: rgba(46,204,113,0.08); border-color: rgba(46,204,113,0.25); }
.check-bubble { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; min-width: 22px; border-radius: 50%; border: 2px solid var(--border); font-size: 13px; font-weight: 700; transition: all 0.3s; }
.check-pending .check-bubble { border-color: var(--text-muted); color: transparent; }
.check-pass .check-bubble { border-color: var(--success); background: var(--success); color: #fff; }

/* PROGRAMMING CHALLENGE INFO */
.prog-info { margin-bottom: 16px; }
.prog-detail { font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; line-height: 1.6; }
.prog-detail code { background: var(--bg-input); padding: 2px 8px; border-radius: 3px; font-size: 12px; user-select: all; }
.client-link { color: var(--accent); text-decoration: none; font-weight: 600; }
.client-link:hover { text-decoration: underline; }

/* NETWORK DEVICE CARDS */
.net-devices { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }
.net-device-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.net-device-header { display: flex; justify-content: space-between; align-items: center; padding: 8px 12px; background: var(--bg-tertiary); border-bottom: 1px solid var(--border); }
.net-device-header strong { font-size: 13px; color: var(--text-primary); }
.net-device-type { font-size: 11px; color: var(--text-muted); text-transform: uppercase; }
.net-device-terminal { }
.net-term-output { background: #0d0d1a; padding: 8px 12px; min-height: 60px; max-height: 200px; overflow-y: auto; font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); }

/* ANSWER FIELDS */
.answer-field { margin-bottom: 16px; }
.answer-label { display: block; font-size: 13px; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; font-family: var(--font-mono); }
.answer-desc { display: block; font-size: 11px; color: var(--text-muted); margin-bottom: 6px; }
.answer-input-row { display: flex; gap: 8px; }
.answer-field-input { flex: 1; padding: 8px 12px; background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; color: var(--text-primary); font-size: 13px; font-family: var(--font-mono); }
.answer-field-input:focus { outline: none; border-color: var(--accent); }
.answer-bubbles { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; min-height: 8px; }
.answer-bubble { display: flex; align-items: center; gap: 6px; padding: 4px 10px; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 16px; font-size: 12px; font-family: var(--font-mono); color: var(--text-primary); transition: all 0.15s; }
.answer-bubble .bubble-status { font-size: 14px; font-weight: 700; min-width: 14px; }
.answer-bubble .bubble-text { max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.answer-bubble .bubble-remove { background: none; border: none; color: var(--text-muted); font-size: 16px; cursor: pointer; padding: 0 2px; line-height: 1; }
.answer-bubble .bubble-remove:hover { color: var(--danger); }
.answer-bubble.bubble-pass { background: rgba(46,204,113,0.1); border-color: var(--success); }
.answer-bubble.bubble-pass .bubble-status { color: var(--success); }
.answer-bubble.bubble-fail { background: rgba(231,76,60,0.1); border-color: var(--danger); }
.answer-bubble.bubble-fail .bubble-status { color: var(--danger); }