/* ====================================================
   tools.dabla.de — Dark Hacker Theme (matches main site)
   ==================================================== */

/* --- Self-hosted Fonts --- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg-primary:    #0a0e17;
  --bg-secondary:  #111827;
  --bg-card:       #1a1f2e;
  --bg-card-hover: #232a3d;
  --bg-terminal:   #0d1117;
  --bg-sidebar:    #0d1219;

  --text-primary:   #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;

  --accent:         #00ff88;
  --accent-dim:     rgba(0,255,136,.15);
  --accent-glow:    rgba(0,255,136,.3);

  --danger:    #ff4444;
  --warning:   #ffaa00;
  --info:      #00aaff;
  --success:   #00ff88;

  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius:     12px;
  --radius-sm:  8px;
  --radius-xs:  4px;
  --transition: .2s cubic-bezier(.4,0,.2,1);

  --sidebar-w:  260px;
}

/* Reset */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
::selection { background: var(--accent); color: var(--bg-primary); }

/* ============ SIDEBAR ============ */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid rgba(255,255,255,.06);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition);
  overflow-y: auto;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.sidebar-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}
.sidebar-logo .prompt { color: var(--accent); margin-right: 2px; }
.sidebar-logo .accent { color: var(--accent); }
.sidebar-close {
  display: none;
  background: none; border: none;
  color: var(--text-muted); font-size: 1.4rem;
  cursor: pointer;
}

.sidebar-nav { flex: 1; padding: 12px 0; }

.nav-group { padding: 8px 0; }
.nav-group-title {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  padding: 8px 20px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  font-size: .88rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  border-left: 3px solid transparent;
  cursor: pointer;
}
.nav-item:hover {
  background: rgba(255,255,255,.03);
  color: var(--text-primary);
}
.nav-item.active {
  color: var(--accent);
  background: var(--accent-dim);
  border-left-color: var(--accent);
}
.nav-icon { font-size: 1.05rem; width: 24px; text-align: center; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,.06);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.badge {
  font-family: var(--font-mono);
  font-size: .65rem;
  padding: 3px 10px;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 20px;
  border: 1px solid rgba(0,255,136,.12);
}

/* ============ MAIN ============ */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 28px;
  background: rgba(10,14,23,.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.topbar-title {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
}
.topbar-badge { margin-left: auto; }
.privacy-badge {
  font-size: .75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: var(--text-primary);
}

/* ============ TOOL PANELS ============ */
.tool-container {
  flex: 1;
  padding: 28px;
}

.tool-panel { display: none; }
.tool-panel.active { display: block; animation: fadeIn .25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.tool-header { margin-bottom: 28px; }
.tool-header h1 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.tool-header p { color: var(--text-secondary); font-size: .92rem; }

.tool-body { display: flex; flex-direction: column; gap: 20px; }

/* Two-column layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Panel (card-like container) */
.panel {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.panel.full { width: 100%; }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255,255,255,.02);
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.panel-header h3 {
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.panel-actions { display: flex; gap: 8px; align-items: center; }

/* Code textarea */
.code-area {
  width: 100%;
  background: var(--bg-terminal);
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: .85rem;
  padding: 14px 16px;
  resize: vertical;
  line-height: 1.6;
  outline: none;
}
.code-area::placeholder { color: var(--text-muted); }
.code-area:focus { box-shadow: inset 0 0 0 1px var(--accent-glow); }

/* Form inputs */
.form-input {
  width: 100%;
  padding: 9px 14px;
  background: var(--bg-terminal);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-size: .88rem;
  font-family: var(--font-sans);
  transition: border-color var(--transition);
}
.form-input.mono { font-family: var(--font-mono); }
.form-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 10px var(--accent-dim); }

.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label {
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Small select & button */
.select-sm {
  padding: 5px 10px;
  background: var(--bg-terminal);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-size: .78rem;
  font-family: var(--font-mono);
  cursor: pointer;
}
.select-sm:focus { outline: none; border-color: var(--accent); }

.btn-sm {
  padding: 5px 14px;
  background: var(--accent-dim);
  border: 1px solid rgba(0,255,136,.2);
  border-radius: var(--radius-xs);
  color: var(--accent);
  font-size: .78rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-sm:hover { background: var(--accent); color: var(--bg-primary); }

.btn-icon-sm {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-size: .9rem;
  transition: all var(--transition);
}
.btn-icon-sm:hover { background: rgba(255,255,255,.06); }

.toggle-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .78rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  cursor: pointer;
}

.info-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-muted);
  padding: 0 4px;
}

/* ============ ENCODING-SPECIFIC ============ */

/* ============ HASHING ============ */
.hash-results {
  display: grid;
  gap: 10px;
}
.hash-row {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-xs);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hash-algo {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 80px;
}
.hash-value {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-secondary);
  word-break: break-all;
  flex: 1;
}
.hash-copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: .9rem;
  opacity: .5;
  transition: opacity var(--transition);
}
.hash-copy-btn:hover { opacity: 1; }

.hash-identify-row {
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 12px 16px;
}
.hash-identify-row .form-input { flex: 1; }
.hash-identify-result {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--warning);
  min-width: 140px;
}

/* ============ TIMESTAMP ============ */
.ts-now-bar {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .88rem;
}
.ts-now-bar code {
  font-family: var(--font-mono);
  color: var(--accent);
  background: var(--accent-dim);
  padding: 2px 10px;
  border-radius: 4px;
  font-size: .85rem;
}

.ts-results {
  display: grid;
  gap: 8px;
}
.ts-row {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-xs);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.ts-label {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  color: var(--info);
  min-width: 160px;
}
.ts-value {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text-secondary);
  word-break: break-all;
}

.fmt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 8px;
  padding: 12px 16px;
}
.fmt-row {
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.fmt-key {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-muted);
  min-width: 120px;
}
.fmt-val {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text-primary);
}

/* ============ DATE CALC ============ */
.datecalc-section {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  padding: 24px;
}
.datecalc-section h3 {
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--accent);
  margin-bottom: 16px;
}
.datecalc-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.datecalc-result {
  background: var(--bg-terminal);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-xs);
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: .88rem;
  color: var(--accent);
  min-height: 48px;
}

/* ============ DIFF ============ */
.diff-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.diff-output {
  background: var(--bg-terminal);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.7;
  overflow-x: auto;
  min-height: 120px;
  white-space: pre-wrap;
  word-break: break-all;
}
.diff-add { background: rgba(0,255,136,.12); color: #66ffaa; }
.diff-del { background: rgba(255,68,68,.12); color: #ff8888; }
.diff-line-num {
  display: inline-block;
  width: 40px;
  text-align: right;
  margin-right: 12px;
  color: var(--text-muted);
  user-select: none;
}
.diff-stats {
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-muted);
}
.diff-stats .add { color: var(--success); }
.diff-stats .del { color: var(--danger); }

/* ============ REGEX ============ */
.regex-input-row {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  margin-bottom: 16px;
}
.regex-slash {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--accent);
  font-weight: 700;
}
.flex-grow { flex: 1; }
.regex-flags-input { max-width: 48px; text-align: center; }

.regex-highlight-area {
  display: none; /* overlay approach, simplified for now */
}

.regex-matches {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: .82rem;
  max-height: 300px;
  overflow-y: auto;
}
.regex-match-item {
  padding: 8px 12px;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.regex-match-item:last-child { border: none; }
.match-index { color: var(--text-muted); font-size: .72rem; }
.match-full { color: var(--accent); }
.match-group { color: var(--info); margin-left: 16px; display: block; font-size: .78rem; }

.regex-library {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 8px;
  padding: 12px 16px;
}
.regex-preset {
  background: var(--bg-terminal);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-xs);
  padding: 10px 14px;
  cursor: pointer;
  transition: all var(--transition);
}
.regex-preset:hover { border-color: var(--accent); }
.regex-preset-name {
  font-weight: 600;
  font-size: .82rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.regex-preset-pattern {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--accent);
  word-break: break-all;
}

/* ============ JWT ============ */
.jwt-sections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}
.jwt-section {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.jwt-section-title {
  font-family: var(--font-mono);
  font-size: .82rem;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.header-color { color: var(--danger); background: rgba(255,68,68,.06); }
.payload-color { color: var(--info); background: rgba(0,170,255,.06); }
.signature-color { color: var(--warning); background: rgba(255,170,0,.06); }

.jwt-json {
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text-secondary);
  overflow-x: auto;
  white-space: pre-wrap;
  margin: 0;
  background: transparent;
}
.jwt-sig {
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--text-muted);
  word-break: break-all;
}
.jwt-meta {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text-secondary);
}
.jwt-expired { color: var(--danger); font-weight: 700; }
.jwt-valid { color: var(--success); font-weight: 700; }

/* ============ URL TOOL ============ */
.url-parsed {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
}
.url-parsed h3 {
  font-family: var(--font-mono);
  font-size: .88rem;
  color: var(--accent);
  margin-bottom: 12px;
}
.parsed-grid {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 6px 16px;
  font-family: var(--font-mono);
  font-size: .82rem;
}
.parsed-key { color: var(--text-muted); font-weight: 600; }
.parsed-val { color: var(--text-primary); word-break: break-all; }

.params-table {
  padding: 12px 16px;
}
.param-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
  font-family: var(--font-mono);
  font-size: .82rem;
}
.param-row:last-child { border: none; }
.param-key { color: var(--info); }
.param-val { color: var(--text-primary); }

/* ============ HEADERS ============ */
.headers-parsed {
  padding: 12px 16px;
}
.header-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
  font-family: var(--font-mono);
  font-size: .82rem;
}
.header-row:last-child { border: none; }
.header-name { color: var(--info); font-weight: 600; }
.header-value { color: var(--text-secondary); word-break: break-all; }

.headers-security {
  padding: 12px 16px;
}
.sec-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.sec-item:last-child { border: none; }
.sec-status { font-size: 1.1rem; min-width: 28px; text-align: center; }
.sec-name {
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-primary);
}
.sec-detail {
  font-size: .78rem;
  color: var(--text-muted);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; }
  .jwt-sections { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-close { display: block; }
  .main { margin-left: 0; }
  .menu-toggle { display: flex; }
  .tool-container { padding: 16px; }
  .topbar { padding: 12px 16px; }
}

/* Overlay when sidebar open on mobile */
.overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,.5);
  z-index: 90;
}
.overlay.active { display: block; }

/* ============ COPY TOAST ============ */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--accent);
  color: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  opacity: 0;
  transform: translateY(10px);
  transition: all .3s ease;
  z-index: 9999;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ============ CERTIFICATE DECODER ============ */
.cert-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
.cert-table td {
  padding: 8px 12px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  vertical-align: top;
}
.cert-table .cert-label {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  width: 180px;
}
.cert-table code {
  font-family: var(--font-mono);
  font-size: .8rem;
  word-break: break-all;
  color: var(--text-secondary);
}
.cert-valid { color: var(--success); font-weight: 700; }
.cert-expired { color: var(--danger); font-weight: 700; }
.cert-critical { color: var(--danger); font-size: .75rem; font-weight: 700; text-transform: uppercase; }
.cert-finding {
  padding: 10px 14px;
  margin-bottom: 8px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  line-height: 1.5;
}
.cert-danger  { background: rgba(255,68,68,.1); border-left: 3px solid var(--danger); }
.cert-warning { background: rgba(255,170,0,.1); border-left: 3px solid var(--warning); }
.cert-ok      { background: rgba(0,255,136,.06); border-left: 3px solid var(--success); }
.cert-quantum { background: rgba(0,170,255,.08); border-left: 3px solid var(--info); }
.cert-info    { background: rgba(0,170,255,.06); border-left: 3px solid var(--info); }
.cert-quantum-info {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 8px;
  font-size: .9rem;
  line-height: 1.7;
}
.cert-quantum-info p { margin-bottom: 8px; }
.cert-quantum-info p:last-child { margin-bottom: 0; }
.chain-label {
  color: var(--accent);
  font-size: 1.1rem;
  margin: 20px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.cert-chain-info {
  background: var(--bg-card);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  color: var(--accent);
  margin-bottom: 12px;
}
.cert-result, .cert-security { margin-top: 16px; }

/* ============ ENCRYPTION / DECRYPTION ============ */
.crypto-algo-info {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 16px;
}
.crypto-info-header {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.crypto-algo-info p { margin-bottom: 6px; font-size: .9rem; line-height: 1.6; }
.crypto-details {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-secondary);
}
.crypto-recommendation {
  color: var(--text-secondary);
  font-size: .85rem;
}
.crypto-actions {
  display: flex;
  gap: 12px;
  margin: 16px 0;
}
.btn-accent {
  background: var(--accent) !important;
  color: var(--bg-primary) !important;
  font-weight: 700;
}
.crypto-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-xs);
  font-size: .8rem;
  font-weight: 600;
}
.crypto-secure  { background: rgba(0,255,136,.12); color: var(--success); }
.crypto-caution { background: rgba(255,170,0,.12); color: var(--warning); }
.crypto-insecure { background: rgba(255,68,68,.12); color: var(--danger); }
.crypto-q-safe  { background: rgba(0,170,255,.10); color: var(--info); }
.crypto-q-caution { background: rgba(255,170,0,.10); color: var(--warning); }
.crypto-q-vulnerable { background: rgba(170,0,255,.15); color: #bb88ff; }
.crypto-q-broken { background: rgba(255,68,68,.12); color: var(--danger); }
.crypto-ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
.crypto-ref-table th {
  text-align: left;
  padding: 10px;
  border-bottom: 2px solid rgba(255,255,255,.1);
  color: var(--text-secondary);
  font-weight: 600;
}
.crypto-ref-table td {
  padding: 8px 10px;
  border-bottom: 1px solid rgba(255,255,255,.04);
  vertical-align: middle;
}
.crypto-algo-name {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}

/* ============ OWASP TOP 10 ============ */
.owasp-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 768px) {
  .owasp-layout { grid-template-columns: 1fr; }
}
.owasp-sidebar {
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 80px;
}
.owasp-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid transparent;
  color: var(--text-primary);
  cursor: pointer;
  font-size: .85rem;
  text-align: left;
  transition: all var(--transition);
}
.owasp-item:hover { background: var(--bg-card-hover); }
.owasp-item.active {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.owasp-id {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  font-size: .8rem;
  flex-shrink: 0;
}
.owasp-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.owasp-content {
  min-width: 0;
}
.owasp-content h2 {
  color: var(--accent);
  font-size: 1.3rem;
  margin-bottom: 12px;
}
.owasp-content h3 {
  color: var(--text-primary);
  font-size: 1rem;
  margin: 20px 0 10px;
}
.owasp-desc {
  font-size: .95rem;
  line-height: 1.7;
  color: var(--text-secondary);
}
.owasp-examples {
  list-style: none;
  padding: 0;
}
.owasp-examples li {
  padding: 8px 12px;
  margin-bottom: 4px;
  background: var(--bg-card);
  border-radius: var(--radius-xs);
  font-size: .9rem;
  line-height: 1.5;
}
.owasp-examples li code {
  font-family: var(--font-mono);
  font-size: .8rem;
  background: rgba(255,255,255,.06);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--danger);
}
.owasp-code-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 12px;
}
@media (max-width: 768px) {
  .owasp-code-compare { grid-template-columns: 1fr; }
}
.owasp-code-panel {
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.owasp-code-panel h4 {
  padding: 10px 14px;
  font-size: .85rem;
}
.owasp-vulnerable h4 { background: rgba(255,68,68,.15); color: var(--danger); }
.owasp-fixed h4 { background: rgba(0,255,136,.1); color: var(--success); }
.owasp-code {
  background: var(--bg-terminal);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: .8rem;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
  color: var(--text-secondary);
  margin: 0;
  border: 1px solid rgba(255,255,255,.06);
  border-top: none;
}
.owasp-fixes {
  list-style: none;
  padding: 0;
}
.owasp-fixes li {
  padding: 8px 12px;
  margin-bottom: 4px;
  background: rgba(0,255,136,.04);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-xs);
  font-size: .9rem;
}

/* ═══════════════════════════════════════════
   POST-QUANTUM CRYPTOGRAPHY
   ═══════════════════════════════════════════ */
.pqc-layout { display: flex; flex-direction: column; gap: 20px; }
.pqc-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.pqc-tab {
  padding: 8px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: .85rem;
  font-family: var(--font-mono);
}
.pqc-tab:hover { border-color: var(--accent); color: var(--text-primary); }
.pqc-tab.active {
  background: rgba(0,255,136,.1);
  border-color: var(--accent);
  color: var(--accent);
}
.pqc-content { min-height: 300px; }
.pqc-content h2 { color: var(--accent); margin-bottom: 12px; font-size: 1.3rem; }
.pqc-content h3 { color: var(--text-primary); margin: 20px 0 10px; font-size: 1.05rem; }
.pqc-content h4 { color: var(--accent); margin-bottom: 6px; }
.pqc-content p { color: var(--text-secondary); line-height: 1.7; margin-bottom: 12px; }
.pqc-content code {
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--accent);
}
.pqc-lead { font-size: 1.05rem; color: var(--text-primary) !important; }
.pqc-muted { color: var(--text-muted) !important; font-size: .9rem; font-style: italic; }

.pqc-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; margin: 20px 0; }
.pqc-card {
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.pqc-card h3 { margin-bottom: 12px; font-size: 1rem; }
.pqc-card ul { list-style: none; padding: 0; margin: 0; }
.pqc-card li { padding: 6px 0; color: var(--text-secondary); font-size: .9rem; border-bottom: 1px solid rgba(255,255,255,.03); }
.pqc-card li:last-child { border-bottom: none; }
.pqc-card li strong { color: var(--text-primary); }
.pqc-danger { background: rgba(255,68,68,.06); border-color: rgba(255,68,68,.3); }
.pqc-danger h3 { color: #ff6666; }
.pqc-safe { background: rgba(0,255,136,.04); border-color: rgba(0,255,136,.2); }
.pqc-safe h3 { color: var(--accent); }

.pqc-info-box {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 16px 0;
}
.pqc-info-box h3 { margin-bottom: 10px; color: var(--text-primary); font-size: 1rem; }
.pqc-info-box p { color: var(--text-secondary); font-size: .9rem; margin-bottom: 8px; }
.pqc-info-box p:last-child { margin-bottom: 0; }

.pqc-problems-table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.pqc-problems-table tr { border-bottom: 1px solid var(--border); }
.pqc-problems-table td { padding: 10px 12px; color: var(--text-secondary); font-size: .9rem; vertical-align: top; }
.pqc-problem-name { color: var(--accent); font-family: var(--font-mono); white-space: nowrap; font-weight: 600; width: 160px; }

.pqc-step-explain { display: flex; flex-direction: column; gap: 16px; margin: 20px 0; }
.pqc-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.pqc-step-num {
  width: 36px; height: 36px; min-width: 36px;
  background: rgba(0,255,136,.15);
  color: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-family: var(--font-mono);
}

.pqc-canvas {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 100%;
  display: block;
}

.pqc-table-wrap { overflow-x: auto; margin: 16px 0; }
.pqc-algo-table {
  width: 100%; border-collapse: collapse;
  font-size: .82rem;
}
.pqc-algo-table th {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 10px 8px;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--accent);
  white-space: nowrap;
}
.pqc-algo-table td {
  padding: 8px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.pqc-algo-cell { color: var(--text-primary) !important; font-weight: 500; }
.pqc-row-legacy { background: rgba(255,68,68,.03); }
.pqc-row-legacy .pqc-algo-cell { color: #ff8888 !important; }
.pqc-row-legacy td:last-child { color: #ff8888; }

.pqc-flow {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin: 24px 0;
}
.pqc-flow-step {
  flex: 1; min-width: 180px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px; text-align: center;
}
.pqc-flow-step h4 { color: var(--text-primary); margin: 10px 0 6px; }
.pqc-flow-step p { color: var(--text-secondary); font-size: .9rem; margin-bottom: 8px; }
.pqc-flow-step code { display: block; font-size: .78rem; color: var(--accent); margin-top: 8px; }
.pqc-flow-icon { font-size: 2rem; }
.pqc-flow-plus, .pqc-flow-equals { font-size: 1.5rem; color: var(--accent); font-weight: 700; }
.pqc-flow-result { border-color: var(--accent); background: rgba(0,255,136,.05); }

.pqc-adoption-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px; margin: 16px 0;
}
.pqc-adopt-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.pqc-adopt-item h4 { color: var(--text-primary); margin-bottom: 6px; }
.pqc-adopt-item p { color: var(--text-secondary); font-size: .88rem; margin: 0; }

.pqc-roadmap { display: flex; flex-direction: column; gap: 0; margin: 20px 0; }
.pqc-road-step {
  padding: 20px;
  border-left: 3px solid var(--accent);
  position: relative;
  margin-left: 12px;
}
.pqc-road-step::before {
  content: '';
  position: absolute;
  left: -9px; top: 24px;
  width: 14px; height: 14px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg-primary);
}
.pqc-road-phase {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .95rem;
  margin-bottom: 10px;
}
.pqc-road-step ul { list-style: disc; padding-left: 20px; }
.pqc-road-step li { color: var(--text-secondary); font-size: .9rem; padding: 3px 0; }

.pqc-harvest-flow {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: center;
  margin: 24px 0;
}
.pqc-harvest-step {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.pqc-harvest-time { color: var(--accent); font-family: var(--font-mono); font-size: .85rem; margin-bottom: 8px; }
.pqc-harvest-step h4 { color: var(--text-primary); margin-bottom: 8px; }
.pqc-harvest-arrow { font-size: 2rem; text-align: center; }

.pqc-risk-calc {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin: 20px 0;
}
.pqc-risk-calc h3 { color: var(--text-primary); margin-bottom: 12px; }
.pqc-formula {
  background: var(--bg-primary);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  color: var(--text-secondary);
  margin: 12px 0;
  font-size: .9rem;
}
.pqc-formula-danger { color: #ff4444; font-weight: 700; }
.pqc-calc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 16px 0; }
.pqc-calc-item label { display: block; color: var(--text-muted); font-size: .8rem; margin-bottom: 4px; }
.pqc-calc-item select {
  width: 100%; padding: 8px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .9rem;
}
.pqc-risk-result { margin-top: 16px; padding: 16px; border-radius: var(--radius-sm); font-size: .95rem; }
.pqc-risk-urgent { color: #ff4444; }
.pqc-risk-warning { color: #ffaa00; }
.pqc-risk-ok { color: var(--accent); }

@media (max-width: 768px) {
  .pqc-harvest-flow { grid-template-columns: 1fr; }
  .pqc-harvest-arrow { transform: rotate(90deg); }
  .pqc-flow { flex-direction: column; }
}

/* ═══════════════════════════════════════════
   AI SECURITY & PROMPT INJECTION
   ═══════════════════════════════════════════ */
.aisec-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  min-height: 500px;
}
.aisec-sidebar {
  border-right: 1px solid var(--border);
  overflow-y: auto;
  max-height: 75vh;
  padding: 4px 0;
}
.aisec-content {
  padding: 24px;
  overflow-y: auto;
  max-height: 75vh;
}
.aisec-category {
  padding: 10px 16px 4px;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
  font-weight: 600;
}
.aisec-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: none;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  width: 100%;
  text-align: left;
  font-size: .88rem;
  transition: var(--transition);
  border-left: 3px solid transparent;
}
.aisec-item:hover { background: rgba(255,255,255,.03); color: var(--text-primary); }
.aisec-item.active { background: rgba(0,255,136,.06); border-left-color: var(--accent); color: var(--text-primary); }
.aisec-item.aisec-critical .aisec-icon { filter: none; }
.aisec-item.aisec-high .aisec-icon { filter: none; }
.aisec-icon { font-size: 1.1rem; flex-shrink: 0; }
.aisec-title { flex: 1; }

.aisec-content h2 { color: var(--accent); font-size: 1.3rem; margin-bottom: 12px; }
.aisec-content h3 { color: var(--text-primary); margin: 24px 0 10px; font-size: 1.05rem; }
.aisec-desc { color: var(--text-secondary); line-height: 1.7; font-size: .95rem; }
.aisec-severity {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: 16px;
}
.aisec-sev-critical { background: rgba(255,68,68,.15); color: #ff4444; }
.aisec-sev-high { background: rgba(255,170,0,.15); color: #ffaa00; }
.aisec-sev-medium { background: rgba(0,170,255,.15); color: #00aaff; }
.aisec-sev-info { background: rgba(0,255,136,.1); color: var(--accent); }

.aisec-code {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .8rem;
  line-height: 1.6;
  color: var(--text-secondary);
  white-space: pre;
  margin: 12px 0;
  max-height: 400px;
  overflow-y: auto;
}
.aisec-attack-code { border-left: 3px solid #ff4444; }
.aisec-defense-code { border-left: 3px solid var(--accent); }

.aisec-impact {
  list-style: none;
  padding: 0;
  margin: 12px 0;
}
.aisec-impact li {
  padding: 8px 12px;
  margin-bottom: 4px;
  background: rgba(255,68,68,.04);
  border-left: 3px solid #ff4444;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-size: .9rem;
}
.aisec-defenses {
  list-style: none;
  padding: 0;
  margin: 12px 0;
}
.aisec-defenses li {
  padding: 8px 12px;
  margin-bottom: 4px;
  background: rgba(0,255,136,.04);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-size: .9rem;
}

@media (max-width: 768px) {
  .aisec-layout { grid-template-columns: 1fr; }
  .aisec-sidebar {
    max-height: 200px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .aisec-content { padding: 16px; }
}

/* ═══════════════════════════════════════════
   DNS EXFILTRATION DEMO
   ═══════════════════════════════════════════ */
.dns-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 20px;
}
.dns-controls {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  align-self: start;
}
.dns-controls h3 { color: var(--accent); margin-bottom: 16px; font-size: 1rem; }
.dns-form-group { margin-bottom: 14px; }
.dns-form-group label { display: block; color: var(--text-muted); font-size: .8rem; margin-bottom: 4px; }
.dns-input, .dns-select {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .88rem;
  font-family: var(--font-mono);
}
.dns-input:focus, .dns-select:focus { border-color: var(--accent); outline: none; }
.dns-range { width: 100%; accent-color: var(--accent); }
.dns-actions { display: flex; gap: 8px; margin-top: 16px; }
.dns-btn-start { background: var(--accent); color: var(--bg-primary); font-weight: 700; }
.dns-btn-start:hover { opacity: .85; }
.dns-btn-start:disabled { opacity: .5; cursor: not-allowed; }
.dns-btn-reset { background: var(--bg-tertiary); border: 1px solid var(--border); color: var(--text-secondary); }
.dns-progress-wrap {
  display: flex; align-items: center; gap: 8px;
  margin-top: 12px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  height: 24px;
  position: relative;
}
.dns-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-sm);
  transition: width .3s ease;
  width: 0;
}
.dns-progress-label {
  position: absolute;
  right: 8px;
  font-size: .75rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.dns-visual h3 { color: var(--accent); margin-bottom: 12px; font-size: 1rem; }
.dns-log-box {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: .78rem;
  max-height: 200px;
  overflow-y: auto;
  min-height: 80px;
}
.dns-log-empty { color: var(--text-muted); font-style: italic; }
.dns-entry { padding: 3px 0; border-bottom: 1px solid rgba(255,255,255,.02); }
.dns-time { color: var(--text-muted); }
.dns-seq { color: var(--accent); }
.dns-type { color: #ffaa00; font-weight: 600; }
.dns-query { color: #ff6666; word-break: break-all; }
.dns-qid { color: var(--text-muted); }

.dns-net-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 20px 0;
  padding: 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.dns-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 70px;
}
.dns-node-icon { font-size: 1.8rem; }
.dns-node-label { font-size: .75rem; color: var(--text-secondary); }
.dns-node-status {
  font-size: .65rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: 10px;
}
.dns-pass { background: rgba(0,255,136,.15); color: var(--accent); }
.dns-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
  max-width: 120px;
}
.dns-arrow-line {
  width: 100%;
  height: 3px;
  background: var(--border);
  position: relative;
  border-radius: 2px;
}
.dns-packet {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  position: absolute;
  top: -4px; left: -10px;
  opacity: 0;
  box-shadow: 0 0 8px var(--accent);
}
.dns-packet.animate {
  animation: dns-fly .5s ease forwards;
}
@keyframes dns-fly {
  0% { left: -10px; opacity: 1; }
  100% { left: calc(100% + 10px); opacity: 0; }
}
.dns-arrow-label { font-size: .65rem; color: var(--text-muted); }

.dns-decoded-section { margin-top: 16px; }
.dns-decoded-section h4 { color: var(--text-primary); font-size: .9rem; margin-bottom: 8px; }
.dns-decoded {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--accent);
  min-height: 40px;
  max-height: 120px;
  overflow-y: auto;
}
.dns-placeholder { color: var(--text-muted); font-style: italic; }

.dns-explain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.dns-explain-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.dns-explain-card h4 { color: var(--accent); font-size: .9rem; margin-bottom: 6px; }
.dns-explain-card p { color: var(--text-secondary); font-size: .85rem; line-height: 1.6; margin: 0; }

@media (max-width: 768px) {
  .dns-layout { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════
   CHECKLISTS
   ═══════════════════════════════════════════ */
.checklist-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
  min-height: 500px;
}
.checklist-sidebar {
  border-right: 1px solid var(--border);
  overflow-y: auto;
  max-height: 75vh;
  padding: 8px 0;
}
.checklist-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: none;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  width: 100%;
  text-align: left;
  font-size: .88rem;
  transition: var(--transition);
  border-left: 3px solid transparent;
}
.checklist-item:hover { background: rgba(255,255,255,.03); color: var(--text-primary); }
.checklist-item.active { background: rgba(0,255,136,.06); border-left-color: var(--accent); color: var(--text-primary); }
.checklist-icon { font-size: 1.1rem; flex-shrink: 0; }

.checklist-main { padding: 20px; overflow-y: auto; max-height: 75vh; }
.checklist-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.checklist-toolbar h3 { color: var(--accent); margin: 0; font-size: 1.1rem; }
.checklist-btns { display: flex; gap: 8px; }

.checklist-preview {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  font-size: .92rem;
  line-height: 1.7;
}
.cl-h1 { color: var(--accent); font-size: 1.2rem; margin-bottom: 16px; }
.cl-h2 { color: var(--text-primary); font-size: 1rem; margin: 20px 0 8px; padding-top: 12px; border-top: 1px solid var(--border); }
.cl-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 5px 0;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: .88rem;
}
.cl-check input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.cl-check span { flex: 1; }
.cl-hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.cl-meta { color: var(--text-muted); font-size: .8rem; font-style: italic; }
.cl-text { color: var(--text-secondary); }

@media (max-width: 768px) {
  .checklist-layout { grid-template-columns: 1fr; }
  .checklist-sidebar {
    max-height: 180px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}

/* ═══════════════════════════════════════════
   PWA INSTALL BUTTON
   ═══════════════════════════════════════════ */
.pwa-install-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 16px;
  background: rgba(0,255,136,.1);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 10px;
}
.pwa-install-btn:hover {
  background: rgba(0,255,136,.2);
}
.pwa-install-icon { font-size: 1.1rem; }

/* ═══════════════════════════════════════════
   EMAIL HEADER ANALYZER
   ═══════════════════════════════════════════ */

/* Summary */
.emh-summary-grid {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.emh-sum-row {
  display: flex;
  gap: 12px;
  padding: 6px 10px;
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.emh-sum-row:last-child { border: none; }
.emh-sum-label {
  min-width: 130px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.emh-sum-value {
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: .85rem;
  word-break: break-all;
}

/* Delay severity colors (shared) */
.emh-delay-low  { color: var(--success); }
.emh-delay-med  { color: var(--warning); }
.emh-delay-high { color: var(--danger); font-weight: 700; }

/* ---- Interactive Route Diagram ---- */
.emh-route {
  position: relative;
  margin-bottom: 10rem;
}
.emh-transit-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 8px 12px;
  margin-bottom: 12px;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
}
.emh-transit-label {
  font-size: .75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.emh-transit-time {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}

.emh-diagram {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 20px 12px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-dim) transparent;
  justify-content: center;
}

/* Server nodes */
.emh-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 90px;
  padding: 12px 8px;
  background: var(--bg-terminal);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all .25s ease;
  opacity: 0;
  flex-shrink: 0;
}
.emh-node:hover,
.emh-node.emh-node-active {
  border-color: var(--accent);
  background: rgba(0,255,136,.06);
  box-shadow: 0 0 16px var(--accent-glow), inset 0 0 12px rgba(0,255,136,.04);
  transform: translateY(-3px);
}
.emh-node-icon {
  font-size: 1.6rem;
  line-height: 1;
}
.emh-node-name {
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color .2s;
}
.emh-node:hover .emh-node-name,
.emh-node.emh-node-active .emh-node-name { color: var(--accent); }
.emh-node-meta {
  font-family: var(--font-mono);
  font-size: .6rem;
  color: var(--text-muted);
}

/* Arrows between nodes */
.emh-arrow {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  min-width: 60px;
  max-width: 140px;
  flex: 1;
  opacity: 0;
}
.emh-arrow-delay {
  font-family: var(--font-mono);
  font-size: .65rem;
  font-weight: 600;
  white-space: nowrap;
  margin-right: 4px;
  min-width: 28px;
  text-align: right;
}
.emh-arrow-line {
  flex: 1;
  height: 2px;
  background: rgba(255,255,255,.12);
  border-radius: 1px;
  position: relative;
  overflow: hidden;
  min-width: 24px;
}
.emh-arrow-line.emh-delay-low  { background: rgba(0,255,136,.25); }
.emh-arrow-line.emh-delay-med  { background: rgba(255,170,0,.30); }
.emh-arrow-line.emh-delay-high { background: rgba(255,68,68,.30); }

.emh-arrow-head {
  font-size: .6rem;
  color: rgba(255,255,255,.25);
  margin-left: 2px;
}
.emh-arrow-head.emh-delay-low  { color: var(--success); }
.emh-arrow-head.emh-delay-med  { color: var(--warning); }
.emh-arrow-head.emh-delay-high { color: var(--danger); }

/* Animated packet dot */
.emh-arrow-packet {
  position: absolute;
  top: -3px;
  left: -6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  opacity: 0;
}
.emh-arrow-packet.emh-fly {
  opacity: 1;
  animation: emh-fly .7s ease-in-out forwards;
}
@keyframes emh-fly {
  0%   { left: -6px; opacity: 1; }
  80%  { opacity: 1; }
  100% { left: calc(100% - 2px); opacity: 0; }
}

/* Pop-in animation for nodes/arrows */
.emh-pop-in {
  animation: emh-pop .35s ease forwards;
}
@keyframes emh-pop {
  0%   { opacity: 0; transform: scale(.7) translateY(8px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

/* Tooltip */
.emh-tooltip {
  position: absolute;
  z-index: 20;
  background: var(--bg-primary);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-secondary);
  line-height: 1.6;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-50%) translateY(4px);
  transition: opacity .15s, transform .15s;
  box-shadow: 0 4px 20px rgba(0,0,0,.5);
  white-space: nowrap;
  max-width: 360px;
}
.emh-tooltip.emh-tooltip-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---- Hop Detail Rows ---- */
.emh-detail-table {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.emh-detail-row {
  display: flex;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-terminal);
  border: 1px solid rgba(255,255,255,.04);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all .25s ease;
}
.emh-detail-row:hover,
.emh-detail-row.emh-row-highlight {
  border-color: var(--accent);
  background: rgba(0,255,136,.04);
  box-shadow: 0 0 12px rgba(0,255,136,.08);
}
.emh-detail-row.emh-row-flash {
  animation: emh-flash .6s ease 2;
}
@keyframes emh-flash {
  0%, 100% { border-color: var(--accent); background: rgba(0,255,136,.04); }
  50%      { border-color: var(--accent); background: rgba(0,255,136,.12); }
}
.emh-detail-num {
  display: flex;
  align-items: flex-start;
  padding-top: 2px;
}
.emh-detail-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
}
.emh-detail-body {
  flex: 1;
  min-width: 0;
}
.emh-detail-main {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.emh-detail-server {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text-primary);
  font-weight: 600;
}
.emh-tls-badge {
  font-size: .68rem;
  font-family: var(--font-mono);
  padding: 1px 6px;
  border-radius: var(--radius-xs);
}
.emh-tls-yes { background: rgba(0,255,136,.1); color: var(--success); }
.emh-tls-no  { background: rgba(255,68,68,.1); color: var(--danger); }
.emh-delay-badge {
  font-size: .68rem;
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 1px 6px;
  border-radius: var(--radius-xs);
  background: rgba(255,255,255,.05);
}
.emh-detail-sub {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-muted);
}
.emh-detail-time {
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Auth cards */
.emh-auth {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.emh-auth-card {
  background: var(--bg-terminal);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  padding: 14px;
  transition: border-color .2s;
}
.emh-auth-card.emh-pass    { border-left: 3px solid var(--success); }
.emh-auth-card.emh-fail    { border-left: 3px solid var(--danger); }
.emh-auth-card.emh-neutral { border-left: 3px solid var(--text-muted); }

.emh-auth-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.emh-auth-icon { font-size: 1.1rem; }
.emh-auth-label {
  font-family: var(--font-mono);
  font-size: .9rem;
  font-weight: 700;
  color: var(--text-primary);
}
.emh-auth-result {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .05em;
}
.emh-pass .emh-auth-result  { color: var(--success); }
.emh-fail .emh-auth-result  { color: var(--danger); }
.emh-neutral .emh-auth-result { color: var(--text-muted); }

.emh-auth-desc {
  font-size: .78rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.emh-auth-detail {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-secondary);
  background: rgba(255,255,255,.03);
  padding: 6px 8px;
  border-radius: var(--radius-xs);
  word-break: break-all;
}

.emh-empty {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: .85rem;
  padding: 16px;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .emh-node { min-width: 70px; padding: 8px 4px; }
  .emh-node-icon { font-size: 1.2rem; }
  .emh-node-name { font-size: .6rem; max-width: 70px; }
  .emh-arrow { min-width: 40px; }
  .emh-arrow-delay { font-size: .58rem; }
  .emh-detail-sub { flex-direction: column; gap: 2px; }
  .emh-auth { grid-template-columns: 1fr; }
  .emh-tooltip { max-width: 240px; white-space: normal; }
}

/* ═══════════════════════════════════════════
   CRON EXPLAINER
   ═══════════════════════════════════════════ */
.cron-input-row {
  display: flex; gap: 12px; align-items: center;
}
.cron-expr-input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: .12em;
}
.cron-field-labels {
  display: flex; gap: 0; margin-top: 4px;
  font-size: .75rem; color: var(--text-muted);
  font-family: var(--font-mono);
}
.cron-field-labels span {
  flex: 1; text-align: center;
}
.cron-explanation {
  font-size: .95rem; line-height: 1.7;
}
.cron-explain-row {
  display: flex; gap: 12px; padding: 4px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.cron-field-name {
  min-width: 110px; color: var(--accent);
  font-family: var(--font-mono); font-size: .85rem;
  text-transform: capitalize;
}
.cron-field-val {
  color: var(--text-primary);
  font-family: var(--font-mono); font-size: .85rem;
}
.cron-error {
  color: var(--danger); font-family: var(--font-mono);
}
.cron-run-list {
  list-style: decimal; padding-left: 24px;
  font-family: var(--font-mono); font-size: .88rem;
  color: var(--text-primary); line-height: 1.9;
}
.cron-presets {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.cron-preset-btn {
  display: flex; flex-direction: column; gap: 2px;
  text-align: left; line-height: 1.3;
}
.cron-preset-btn code {
  font-family: var(--font-mono); font-size: .75rem;
  color: var(--text-muted);
}
@media (max-width: 768px) {
  .cron-input-row { flex-direction: column; }
  .cron-field-labels { font-size: .65rem; }
}