/* ============ PentestOS — design system ============ */
:root{
  --bg:#0a0e14; --bg2:#0d1420; --card:#111a26; --card2:#0f1622;
  --border:#1e2a3a; --border2:#2a3b52;
  --text:#d7e2ee; --muted:#7a8ca3; --accent:#00ff88; --accent-dim:rgba(0,255,136,.12);
  --cyan:#00d4ff; --cyan-dim:rgba(0,212,255,.12);
  --red:#ff4757; --orange:#ffa502; --yellow:#ffd32a;
  --font:'Segoe UI',system-ui,sans-serif; --mono:'JetBrains Mono','Cascadia Code',Consolas,monospace;
  --radius:14px; --shadow:0 8px 32px rgba(0,0,0,.45);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.6;
  background-image:radial-gradient(ellipse 60% 40% at 70% -10%,rgba(0,212,255,.07),transparent),
                   radial-gradient(ellipse 50% 35% at 10% 110%,rgba(0,255,136,.06),transparent)}
::selection{background:var(--accent);color:#04140b}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}

/* ---------- topbar ---------- */
.topbar{display:flex;align-items:center;gap:22px;padding:14px 26px;position:sticky;top:0;z-index:50;
  background:rgba(10,14,20,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:12px;cursor:pointer;user-select:none}
.logo{font-size:30px;color:var(--accent);text-shadow:0 0 18px rgba(0,255,136,.6);animation:pulse 3s infinite}
@keyframes pulse{0%,100%{text-shadow:0 0 14px rgba(0,255,136,.5)}50%{text-shadow:0 0 26px rgba(0,255,136,.95)}}
.brand h1{font-family:var(--mono);font-size:21px;letter-spacing:.5px}
.brand .accent{color:var(--accent)}
.tagline{font-size:10.5px;color:var(--muted);letter-spacing:.4px}
#nav{display:flex;gap:6px;flex-wrap:wrap;margin-left:auto}
#nav button{background:transparent;border:1px solid transparent;color:var(--muted);font-family:var(--mono);
  font-size:12.5px;padding:8px 13px;border-radius:9px;cursor:pointer;transition:.18s}
#nav button:hover{color:var(--text);border-color:var(--border2);background:var(--card)}
#nav button.active{color:var(--accent);border-color:var(--accent);background:var(--accent-dim);
  box-shadow:0 0 14px rgba(0,255,136,.18)}
.btn-reset{background:transparent;border:1px solid var(--border);color:var(--muted);border-radius:9px;
  width:38px;height:38px;cursor:pointer;font-size:16px;transition:.18s}
.btn-reset:hover{color:var(--red);border-color:var(--red)}

/* ---------- layout ---------- */
main{max-width:1180px;margin:0 auto;padding:34px 26px 70px}
.tab{display:none;animation:fadeUp .3s ease}
.tab.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
h2{font-family:var(--mono);font-size:24px;margin-bottom:6px;letter-spacing:.3px}
h2 .sub{font-size:13px;color:var(--muted);font-weight:400}
h3{font-family:var(--mono);font-size:16px;margin-bottom:10px}
.mt{margin-top:34px}
.muted{color:var(--muted);font-size:13px}

/* ---------- hero ---------- */
.hero{padding:46px 40px;border:1px solid var(--border);border-radius:20px;margin-bottom:28px;position:relative;
  overflow:hidden;background:linear-gradient(145deg,var(--card2),var(--card))}
.hero:before{content:'';position:absolute;inset:-40%;background:
  conic-gradient(from 0deg,transparent 60%,rgba(0,255,136,.14) 75%,transparent 90%);
  animation:spin 9s linear infinite;pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}
.hero h2{font-size:37px;line-height:1.15;position:relative}
.hero .accent{color:var(--accent);text-shadow:0 0 24px rgba(0,255,136,.5)}
.hero p{color:var(--muted);max-width:680px;margin:14px 0 22px;position:relative;font-size:15px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}
.btn{font-family:var(--mono);font-size:13px;padding:11px 20px;border-radius:10px;cursor:pointer;
  border:1px solid var(--border2);background:var(--card);color:var(--text);transition:.18s}
.btn:hover{border-color:var(--accent);transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#04140b;border-color:var(--accent);font-weight:700;
  box-shadow:0 0 20px rgba(0,255,136,.35)}
.btn-primary:hover{box-shadow:0 0 30px rgba(0,255,136,.55)}

/* ---------- stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:28px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px 16px;
  text-align:center;transition:.18s}
.stat-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 6px 22px rgba(0,255,136,.1)}
.stat-num{font-family:var(--mono);font-size:31px;color:var(--accent);display:block}
.stat-num.cyan{color:var(--cyan)}
.stat-label{font-size:11.5px;color:var(--muted);letter-spacing:.3px}

/* ---------- quick cards ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-bottom:28px}
.quick-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;
  cursor:pointer;transition:.18s;position:relative;overflow:hidden}
.quick-card:hover{border-color:var(--cyan);transform:translateY(-4px);box-shadow:var(--shadow)}
.quick-card:before{content:'';position:absolute;top:0;left:-70%;width:50%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(0,212,255,.09),transparent);transition:.5s}
.quick-card:hover:before{left:120%}
.q-icon{font-size:26px}
.quick-card h3{margin:10px 0 6px;color:var(--cyan)}
.quick-card p{font-size:12.5px;color:var(--muted)}

/* ---------- principles ---------- */
.principles{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.principle-chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:12px}
.principle-chips span{font-family:var(--mono);font-size:11.5px;padding:7px 13px;border-radius:20px;
  background:var(--accent-dim);color:var(--accent);border:1px solid rgba(0,255,136,.25)}

/* ---------- roadmap ---------- */
.progress-wrap{display:flex;align-items:center;gap:14px;margin:14px 0 24px}
.progress-bar{flex:1;height:12px;background:var(--card2);border:1px solid var(--border);border-radius:8px;overflow:hidden}
.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--cyan));
  border-radius:8px;transition:width .5s ease;box-shadow:0 0 14px rgba(0,255,136,.5)}
.progress-label{font-family:var(--mono);color:var(--accent);font-size:15px;min-width:48px}
.phase{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:.18s}
.phase:hover{border-color:var(--border2)}
.phase-head{display:flex;align-items:center;gap:14px;padding:16px 20px;cursor:pointer;user-select:none}
.phase-num{font-family:var(--mono);font-size:19px;color:var(--accent);min-width:38px}
.phase-title{flex:1}
.phase-title b{font-size:15px}
.phase-title span{display:block;font-size:12px;color:var(--muted)}
.phase-pct{font-family:var(--mono);font-size:12.5px;color:var(--cyan)}
.phase-arrow{color:var(--muted);transition:.2s}
.phase.open .phase-arrow{transform:rotate(90deg)}
.phase-body{display:none;padding:4px 20px 18px 72px;border-top:1px dashed var(--border)}
.phase.open .phase-body{display:block;animation:fadeUp .25s}
.check-item{display:flex;align-items:flex-start;gap:11px;padding:9px 12px;margin:7px 0;border-radius:9px;
  background:var(--card2);border:1px solid var(--border);cursor:pointer;transition:.15s}
.check-item:hover{border-color:var(--border2)}
.check-item.done{opacity:.55}
.check-item.done .check-label{text-decoration:line-through}
.cbox{width:19px;height:19px;border:2px solid var(--border2);border-radius:5px;flex-shrink:0;
  display:grid;place-items:center;font-size:12px;color:transparent;transition:.15s;margin-top:1px}
.check-item.done .cbox{background:var(--accent);border-color:var(--accent);color:#04140b}
.check-label{font-size:13.5px}

/* ---------- vulnerabilities ---------- */
.filter-bar{margin:14px 0 20px;display:flex;flex-direction:column;gap:10px}
#vuln-search{background:var(--card);border:1px solid var(--border);color:var(--text);font-family:var(--mono);
  font-size:13.5px;padding:12px 16px;border-radius:10px;outline:none;transition:.18s}
#vuln-search:focus{border-color:var(--accent);box-shadow:0 0 14px rgba(0,255,136,.15)}
.chip-row{display:flex;flex-wrap:wrap;gap:7px}
.chip{font-family:var(--mono);font-size:11.5px;padding:6px 13px;border-radius:18px;cursor:pointer;
  background:var(--card);border:1px solid var(--border);color:var(--muted);transition:.15s}
.chip:hover{color:var(--text);border-color:var(--border2)}
.chip.active{color:var(--cyan);border-color:var(--cyan);background:var(--cyan-dim)}
.chip.sev-critical.active{color:var(--red);border-color:var(--red);background:rgba(255,71,87,.12)}
.chip.sev-high.active{color:var(--orange);border-color:var(--orange);background:rgba(255,165,2,.12)}
.chip.sev-medium.active{color:var(--yellow);border-color:var(--yellow);background:rgba(255,211,42,.1)}
.vuln-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:13px}
.vuln-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:17px;
  cursor:pointer;transition:.18s;position:relative;overflow:hidden}
.vuln-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:0 6px 22px rgba(0,255,136,.12)}
.vuln-card h4{font-family:var(--mono);font-size:14px;margin-bottom:5px;display:flex;justify-content:space-between;gap:8px}
.vuln-card p{font-size:12px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vuln-cat{font-family:var(--mono);font-size:10px;letter-spacing:.5px;text-transform:uppercase;
  display:inline-block;margin-bottom:7px;padding:3px 9px;border-radius:12px;background:var(--cyan-dim);color:var(--cyan)}
.sev{font-size:9.5px;font-family:var(--mono);padding:3px 8px;border-radius:10px;flex-shrink:0}
.sev-Critical{background:rgba(255,71,87,.15);color:var(--red);border:1px solid rgba(255,71,87,.4)}
.sev-High{background:rgba(255,165,2,.13);color:var(--orange);border:1px solid rgba(255,165,2,.4)}
.sev-Medium{background:rgba(255,211,42,.1);color:var(--yellow);border:1px solid rgba(255,211,42,.35)}
.sev-Info{background:rgba(122,140,163,.12);color:var(--muted);border:1px solid var(--border2)}

/* ---------- modal ---------- */
.modal{display:none;position:fixed;inset:0;background:rgba(4,8,13,.8);backdrop-filter:blur(6px);z-index:100;
  align-items:center;justify-content:center;padding:24px}
.modal.show{display:flex;animation:fadeUp .22s}
.modal-card{background:var(--bg2);border:1px solid var(--border2);border-radius:18px;max-width:680px;width:100%;
  max-height:84vh;overflow-y:auto;padding:30px 32px;box-shadow:var(--shadow)}
.modal-card h3{font-size:20px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.modal-card .close{float:right;background:none;border:none;color:var(--muted);font-size:22px;cursor:pointer}
.mrow{margin:16px 0;padding:14px 16px;background:var(--card);border:1px solid var(--border);border-radius:10px}
.mrow b{font-family:var(--mono);color:var(--cyan);font-size:11px;text-transform:uppercase;
  letter-spacing:.6px;display:block;margin-bottom:5px}
.mrow code, .mrow pre{font-family:var(--mono);font-size:12.5px}
.mrow pre{background:#080c12;border:1px solid var(--border);border-radius:8px;padding:12px;
  overflow-x:auto;margin-top:6px;line-height:1.5}

/* ---------- methodology ---------- */
.flow-wrap{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
.flow-step{flex:1;min-width:130px;background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:16px 14px;cursor:pointer;text-align:center;transition:.18s}
.flow-step:hover{border-color:var(--cyan);transform:translateY(-3px)}
.flow-step.sel{border-color:var(--accent);background:var(--accent-dim);box-shadow:0 0 16px rgba(0,255,136,.2)}
.flow-step .fn{font-family:var(--mono);font-size:21px;color:var(--accent)}
.flow-step b{display:block;font-size:13px;margin:6px 0 3px}
.flow-step span{font-size:11px;color:var(--muted)}
.phase-detail{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;min-height:120px}
.phase-detail h3{color:var(--accent)}
.loop{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:12px 0;font-family:var(--mono);font-size:12px}
.loop span{background:var(--card);border:1px solid var(--border2);padding:9px 15px;border-radius:9px;color:var(--cyan)}
.loop span.accent{color:var(--accent);border-color:var(--accent)}
.loop i{color:var(--muted)}

/* ---------- tools ---------- */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px;margin-bottom:20px}
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.tool-card h4{font-family:var(--mono);color:var(--cyan);margin-bottom:11px;font-size:14px}
.tool-card ul{list-style:none}
.tool-card li{font-size:13px;padding:6px 0;border-bottom:1px dashed var(--border);display:flex;
  justify-content:space-between;gap:10px}
.tool-card li:last-child{border:none}
.tool-card code{font-family:var(--mono);font-size:11.5px;color:var(--muted)}
.note-card{background:var(--accent-dim);border:1px solid rgba(0,255,136,.3);border-radius:var(--radius);padding:18px 20px;font-size:13.5px}

/* ---------- quiz ---------- */
.quiz-box{max-width:720px;margin:0 auto}
.quiz-start,.quiz-q,.quiz-end{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:30px}
.quiz-q h3{font-size:16px;line-height:1.5;margin-bottom:20px}
.qopt{display:block;width:100%;text-align:left;background:var(--card2);border:1px solid var(--border);
  color:var(--text);font-size:13.5px;padding:13px 17px;border-radius:10px;margin:9px 0;cursor:pointer;transition:.15s}
.qopt:hover{border-color:var(--cyan)}
.qopt.correct{border-color:var(--accent);background:var(--accent-dim);color:var(--accent)}
.qopt.wrong{border-color:var(--red);background:rgba(255,71,87,.1);color:var(--red)}
.qopt:disabled{cursor:default}
.qmeta{display:flex;justify-content:space-between;font-family:var(--mono);font-size:12px;color:var(--muted);margin-bottom:14px}
.qexplain{background:var(--cyan-dim);border:1px solid rgba(0,212,255,.3);border-radius:10px;padding:13px 16px;
  font-size:13px;margin-top:14px;display:none}
.qexplain.show{display:block;animation:fadeUp .2s}
.big-score{font-family:var(--mono);font-size:52px;text-align:center;display:block;margin:14px 0}

footer{border-top:1px solid var(--border);padding:26px;text-align:center;color:var(--muted);font-size:12.5px}
footer p{margin:4px 0}

@media(max-width:760px){
  .topbar{flex-wrap:wrap;gap:10px;padding:12px 16px}
  #nav{margin-left:0;width:100%;order:3}
  main{padding:22px 16px 60px}
  .hero{padding:30px 22px}
  .hero h2{font-size:27px}
  .phase-body{padding-left:20px}
}

/* ============ v2: light theme, palette, toasts, scenarios, cheat sheet ============ */
[data-theme="light"]{
  --bg:#f4f7fb; --bg2:#eef2f8; --card:#ffffff; --card2:#f7f9fc;
  --border:#dbe3ee; --border2:#c3cfe0;
  --text:#17222f; --muted:#5b6b80; --accent:#00a862; --accent-dim:rgba(0,168,98,.12);
  --cyan:#0088c7; --cyan-dim:rgba(0,136,199,.1);
  --shadow:0 8px 32px rgba(20,40,70,.1);
}
[data-theme="light"] body{background-image:radial-gradient(ellipse 60% 40% at 70% -10%,rgba(0,136,199,.06),transparent),
                   radial-gradient(ellipse 50% 35% at 10% 110%,rgba(0,168,98,.06),transparent)}
[data-theme="light"] .hero:before{opacity:.5}
[data-theme="light"] .logo{text-shadow:0 0 12px rgba(0,168,98,.35)}
[data-theme="light"] .btn-primary{color:#fff}
[data-theme="light"] .cbox{color:transparent}
[data-theme="light"] .mrow pre,[data-theme="light"] code{background:#f0f4fa}

/* topbar actions */
.topbar-actions{display:flex;gap:8px;margin-left:10px}
.icon-btn{width:38px;height:38px;border-radius:9px;background:transparent;border:1px solid var(--border);
  color:var(--muted);cursor:pointer;font-size:16px;transition:.18s}
.icon-btn:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-1px)}

/* progress variants */
.progress-bar.small{height:8px}
.progress-fill.cyan{background:linear-gradient(90deg,var(--cyan),var(--accent));box-shadow:0 0 12px rgba(0,212,255,.4)}
.progress-label.cyan{color:var(--cyan)}

/* vuln progress + switch */
.vuln-progress{display:flex;align-items:center;gap:14px;margin:14px 0 6px;flex-wrap:wrap}
.vuln-progress .progress-bar{flex:1;min-width:160px}
.switch{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);cursor:pointer;font-family:var(--mono)}
.switch input{accent-color:var(--accent)}

/* learned / note badges on cards */
.vuln-card.learned{border-color:rgba(0,255,136,.35)}
.badge-learned{font-family:var(--mono);font-size:10px;padding:3px 8px;border-radius:10px;
  background:var(--accent-dim);color:var(--accent);border:1px solid rgba(0,255,136,.3);margin-left:6px}
.badge-note{font-size:11px;margin-left:6px}

/* phase complete */
.phase.complete{border-color:rgba(0,255,136,.4);box-shadow:0 0 18px rgba(0,255,136,.08)}

/* modal actions + notes */
.modal-actions{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 4px}
.btn.mini{font-size:11px;padding:5px 10px;margin-top:8px}
.btn-danger{border-color:rgba(255,71,87,.5);color:var(--red)}
.btn-danger:hover{border-color:var(--red);background:rgba(255,71,87,.1)}
.note-input{width:100%;min-height:80px;margin-top:8px;background:var(--card2);border:1px solid var(--border);
  color:var(--text);font-family:var(--font);font-size:13px;padding:10px 12px;border-radius:9px;resize:vertical;outline:none}
.note-input:focus{border-color:var(--accent)}

/* command palette */
.palette{display:none;position:fixed;inset:0;background:rgba(4,8,13,.72);backdrop-filter:blur(6px);z-index:200;
  align-items:flex-start;justify-content:center;padding:12vh 20px 20px}
.palette.show{display:flex;animation:fadeUp .18s}
.palette-box{width:100%;max-width:620px;background:var(--bg2);border:1px solid var(--border2);border-radius:16px;
  box-shadow:var(--shadow);overflow:hidden}
#palette-input{width:100%;background:transparent;border:none;border-bottom:1px solid var(--border);color:var(--text);
  font-family:var(--mono);font-size:15px;padding:18px 20px;outline:none}
.palette-results{max-height:52vh;overflow-y:auto}
.palette-item{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:12px 20px;cursor:pointer;
  border-bottom:1px solid var(--border);font-size:13.5px}
.palette-item:hover,.palette-item.sel{background:var(--accent-dim);border-left:3px solid var(--accent)}
.palette-sub{font-size:11px;color:var(--muted);font-family:var(--mono);text-align:right;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;max-width:45%}
.palette-hint{padding:9px 20px;font-size:11px;color:var(--muted);font-family:var(--mono);border-top:1px solid var(--border)}

/* toasts */
.toasts{position:fixed;right:20px;bottom:20px;display:flex;flex-direction:column;gap:9px;z-index:300}
.toast{background:var(--card);border:1px solid var(--border2);border-left:3px solid var(--cyan);color:var(--text);
  padding:12px 17px;border-radius:11px;font-size:13px;box-shadow:var(--shadow);animation:slideIn .25s ease;max-width:340px}
.toast.ok{border-left-color:var(--accent)}
.toast.bad{border-left-color:var(--red)}
.toast.out{opacity:0;transform:translateX(20px);transition:.35s}
@keyframes slideIn{from{opacity:0;transform:translateX(30px)}to{opacity:1;transform:none}}

/* scenarios */
.scenario-picker{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px;margin:16px 0 22px}
.sc-card{display:flex;gap:12px;align-items:center;background:var(--card);border:1px solid var(--border);
  border-radius:12px;padding:16px;cursor:pointer;transition:.18s}
.sc-card:hover{border-color:var(--cyan);transform:translateY(-2px)}
.sc-card.sel{border-color:var(--accent);background:var(--accent-dim);box-shadow:0 0 16px rgba(0,255,136,.15)}
.sc-icon{font-size:24px}
.sc-card b{display:block;font-size:14px}
.sc-card span{font-size:11.5px;color:var(--muted)}
.scenario-view{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.sc-head h3{margin-bottom:8px;color:var(--accent)}
.sc-step{margin:18px 0;padding:18px;background:var(--card2);border:1px solid var(--border);border-radius:12px;animation:fadeUp .25s}
.sc-step-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.sc-day{font-family:var(--mono);font-size:11px;padding:4px 11px;border-radius:20px;background:var(--cyan-dim);
  color:var(--cyan);border:1px solid rgba(0,212,255,.3)}
.sc-step-head b{font-size:15px}
.sc-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px}
.sc-impact,.sc-lessons{margin-top:16px;padding:16px 18px;border-radius:12px;animation:fadeUp .3s}
.sc-impact{background:rgba(255,71,87,.08);border:1px solid rgba(255,71,87,.3)}
.sc-lessons{background:var(--accent-dim);border:1px solid rgba(0,255,136,.3)}
.sc-impact b,.sc-lessons b{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.sc-lessons ul{margin:8px 0 0 18px;font-size:13px}
.sc-lessons li{margin:5px 0}

/* cheat sheet */
.cheat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:14px}
.cheat-card h4{margin-bottom:12px}
.cheat-row{position:relative;padding:10px 34px 10px 12px;margin:7px 0;background:var(--card2);
  border:1px solid var(--border);border-radius:9px;cursor:pointer;transition:.15s}
.cheat-row:hover{border-color:var(--accent);background:var(--accent-dim)}
.cheat-row code{display:block;font-family:var(--mono);font-size:12px;color:var(--text);word-break:break-all}
.cheat-desc{display:block;font-size:11px;color:var(--muted);margin-top:4px}
.cheat-copy{position:absolute;right:11px;top:50%;transform:translateY(-50%);opacity:.35;font-size:13px}
.cheat-row:hover .cheat-copy{opacity:1}

/* settings */
.settings-card{max-width:560px}
.settings-actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.settings-actions .btn{text-decoration:none}
.qmeta{margin-bottom:10px}
.quiz-q .progress-bar{margin-bottom:14px}

@media(max-width:760px){
  .topbar-actions{order:2;margin-left:auto}
  .toasts{right:12px;left:12px;bottom:12px}
  .toast{max-width:none}
  .palette{padding:8vh 12px 12px}
  .cheat-grid,.scenario-picker{grid-template-columns:1fr}
}

/* ============ v3: dark arts, utilities, checklist, report gen, timer ============ */
/* dark arts */
.darkarts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:13px;margin-top:16px}
.dark-card{border-color:rgba(255,165,2,.25)}
.dark-card:hover{border-color:var(--orange);box-shadow:0 6px 22px rgba(255,165,2,.12)}
.dark-card h4{color:var(--orange)}
.mrow.dark{border-left:3px solid var(--orange)}
.mrow.ok{border-left:3px solid var(--accent)}
.mrow.warn{border-left:3px solid var(--red);background:rgba(255,71,87,.05)}

/* study bar */
.study-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;margin-bottom:22px}
.study-timer{display:flex;align-items:center;gap:14px}
.study-timer span#study-clock{font-family:var(--mono);font-size:26px;color:var(--accent);min-width:96px}
.study-streak{font-family:var(--mono);font-size:13px;color:var(--orange)}
.study-note{font-size:12.5px}

/* category progress */
.cat-progress{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px}
.cat-row{display:flex;align-items:center;gap:12px;margin:7px 0}
.cat-name{font-size:11.5px;font-family:var(--mono);min-width:130px}
.cat-row .progress-bar{flex:1}
.cat-pct{font-family:var(--mono);font-size:11.5px;color:var(--muted);min-width:44px;text-align:right}

/* recently viewed */
.recent-chips{display:flex;flex-wrap:wrap;gap:7px}
.recent-chips .chip{cursor:pointer}

/* sort + badges */
.select-mini{background:var(--card);border:1px solid var(--border);color:var(--text);
  font-family:var(--mono);font-size:11.5px;padding:6px 9px;border-radius:8px;outline:none;cursor:pointer}
.badge-bm{font-family:var(--mono);color:var(--orange);margin-left:5px}

/* utilities */
.util-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(330px,1fr));gap:14px;margin-top:16px}
.util-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.util-card h4{color:var(--cyan);margin-bottom:12px}
.util-btns{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.util-out{background:#080c12;border:1px solid var(--border);border-radius:9px;padding:12px;
  font-family:var(--mono);font-size:12.5px;color:var(--text);white-space:pre-wrap;word-break:break-all;
  max-height:260px;overflow-y:auto;min-height:44px;cursor:pointer;line-height:1.5}
[data-theme="light"] .util-out{background:#f0f4fa}
.hash-hit{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed var(--border)}
.hash-hit b{min-width:90px}
.hash-hit code{background:var(--card2);border:1px solid var(--border);border-radius:7px;padding:4px 9px;
  cursor:pointer;font-size:11.5px}
.cvss-form{display:flex;flex-direction:column;gap:6px}
.cvss-row{display:flex;align-items:center;gap:10px}
.cvss-row span{font-family:var(--mono);font-size:12px;color:var(--muted);min-width:26px}
.cvss-row select{flex:1;background:var(--card2);border:1px solid var(--border);color:var(--text);
  padding:7px 10px;border-radius:8px;font-size:12.5px;outline:none}
.cvss-result{margin-top:14px;text-align:center;font-size:18px}
.cvss-score{font-family:var(--mono);font-size:40px;display:block}
.cvss-score.sev-Critical{color:var(--red)}
.cvss-score.sev-High{color:var(--orange)}
.cvss-score.sev-Medium{color:var(--yellow)}
.cvss-score.sev-Low{color:var(--cyan)}
.cvss-vec{margin-top:8px;text-align:center;font-family:var(--mono);font-size:11.5px;word-break:break-all}

/* checklist */
.checklist-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:10px 0 18px}

/* report generator */
.report-card{max-width:680px}
.rep-form{display:flex;flex-direction:column;gap:11px;margin:14px 0}
.rep-form label{display:flex;flex-direction:column;gap:5px;font-family:var(--mono);font-size:11.5px;color:var(--muted)}
.rep-form input,.rep-form textarea,.rep-form select{background:var(--card2);border:1px solid var(--border);
  color:var(--text);padding:10px 12px;border-radius:9px;font-size:13.5px;font-family:var(--font);outline:none;resize:vertical}
.rep-form input:focus,.rep-form textarea:focus{border-color:var(--accent)}
.rep-row2{display:grid;grid-template-columns:1fr 1fr;gap:11px}

@media(max-width:760px){
  .util-grid{grid-template-columns:1fr}
  .rep-row2{grid-template-columns:1fr}
  .cat-name{min-width:90px}
  #study-clock{min-width:72px;font-size:20px}
}

/* ============ v3b: live tools ============ */
.livetool-in{width:100%;background:var(--card2);border:1px solid var(--border);color:var(--text);
  padding:10px 12px;border-radius:9px;font-size:13px;font-family:var(--mono);outline:none;margin-bottom:8px}
.livetool-in:focus{border-color:var(--accent)}
.plab-list{max-height:420px;overflow-y:auto;margin-top:10px}
#http-out b,#hdr-out b{color:var(--accent)}
[data-theme="light"] .util-out{background:#f0f4fa}

/* ============ v3c: footer redesign ============ */
footer{border-top:1px solid var(--border);padding:0;margin-top:40px;
  background:linear-gradient(180deg,transparent,rgba(0,255,136,.04));position:relative;overflow:hidden}
footer:before{content:'';position:absolute;top:0;left:-60%;width:40%;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);animation:footline 6s linear infinite}
@keyframes footline{to{left:120%}}
.footer-inner{max-width:1180px;margin:0 auto;padding:34px 26px 18px;display:flex;
  align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-logo{font-size:30px;color:var(--accent);text-shadow:0 0 16px rgba(0,255,136,.5)}
.footer-brand h4{font-family:var(--mono);font-size:22px;letter-spacing:.5px}
.footer-brand h4 span{color:var(--accent)}
.footer-brand p{font-size:11px;color:var(--muted);letter-spacing:.4px}
.footer-links{display:flex;gap:10px;flex-wrap:wrap}
.footer-links a{font-family:var(--mono);font-size:12px;color:var(--muted);text-decoration:none;
  border:1px solid var(--border);padding:8px 16px;border-radius:20px;transition:.18s}
.footer-links a:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px);
  box-shadow:0 4px 14px rgba(0,255,136,.15)}
.footer-credit{border-top:1px dashed var(--border);padding:18px 26px;text-align:center}
.footer-credit p{margin:4px 0;font-size:13.5px}
.footer-credit b{color:var(--accent)}
@media(max-width:760px){
  .footer-inner{flex-direction:column;text-align:center}
}