interactive.css

/* Built interactive stylesheet. Source modules are kept in css/interactive/ for maintenance. */

/* === css/interactive/interactive-core.css === */

/* Interactive security-lab layer
   Adds command palette, playgrounds, lab controls, reader modes,
   alive cards, activity graph, and learning path UI. */

:root {
  --interactive-shadow: 0 26px 80px rgba(0, 0, 0, 0.36);
  --interactive-panel: rgba(17, 22, 28, 0.92);
  --interactive-line: rgba(79, 140, 255, 0.32);
}

[data-theme="light"] {
  --interactive-panel: rgba(255, 255, 255, 0.94);
  --interactive-shadow: 0 26px 70px rgba(15, 23, 42, 0.16);
}

/* ---------- alive cards / cursor-reactive glow ---------- */
[data-glow-card] {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

[data-glow-card]::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(79, 140, 255, 0.14), transparent 42%);
  opacity: 0;
  transition: opacity var(--transition);
  z-index: 0;
}

[data-glow-card] > * {
  position: relative;
  z-index: 1;
}

[data-glow-card]:hover::after,
[data-glow-card]:focus-within::after {
  opacity: 1;
}

.scanline-sweep {
  position: absolute;
  left: 0;
  right: 0;
  top: -2px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 140, 255, 0.7), transparent);
  transform: translateX(-110%);
  opacity: 0;
  transition: transform 0.65s ease, opacity 0.25s ease;
  pointer-events: none;
  z-index: 2;
}

[data-glow-card]:hover > .scanline-sweep {
  transform: translateX(110%);
  opacity: 1;
}

/* ---------- first-visit boot overlay ---------- */
.boot-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: grid;
  place-items: center;
  background: rgba(5, 8, 12, 0.94);
  backdrop-filter: blur(18px);
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.boot-overlay.is-done {
  opacity: 0;
  visibility: hidden;
}

.boot-terminal {
  width: min(560px, calc(100vw - 2rem));
  border: 1px solid rgba(79, 140, 255, 0.28);
  background: linear-gradient(180deg, rgba(17, 22, 28, 0.96), rgba(9, 13, 18, 0.96));
  border-radius: 16px;
  box-shadow: var(--interactive-shadow);
  overflow: hidden;
}

.boot-terminal-bar {
  display: flex;
  gap: 0.4rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.boot-dot {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

.boot-lines {
  padding: 1.2rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text2);
  display: grid;
  gap: 0.55rem;
}

.boot-lines span::before {
  content: "$ ";
  color: var(--accent);
}

.boot-lines strong {
  color: var(--text);
  font-weight: 500;
}

/* === css/interactive/interactive-command.css === */

/* ---------- command palette ---------- */
.command-palette {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: start center;
  padding: 10vh 1rem 1rem;
  background: rgba(5, 8, 12, 0.56);
  backdrop-filter: blur(12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, visibility 0.18s ease;
}

.command-palette.is-open {
  opacity: 1;
  visibility: visible;
}

.command-panel {
  width: min(760px, 100%);
  background: var(--interactive-panel);
  border: 1px solid rgba(79, 140, 255, 0.22);
  border-radius: 18px;
  box-shadow: var(--interactive-shadow);
  overflow: hidden;
}

.command-head {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--border);
}

.command-prompt {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.9rem;
}

.command-input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font: 500 1rem var(--mono);
}

.command-input::placeholder {
  color: var(--text3);
}

.command-hint {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text3);
  white-space: nowrap;
}

.command-results {
  max-height: 420px;
  overflow: auto;
  padding: 0.5rem;
}

.command-result {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 0.78rem 0.85rem;
  border-radius: 12px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.command-result:hover,
.command-result.is-selected {
  background: rgba(79, 140, 255, 0.1);
  border-color: rgba(79, 140, 255, 0.22);
  transform: translateY(-1px);
}

.command-title {
  font-weight: 600;
  font-size: 0.93rem;
}

.command-desc {
  margin-top: 0.15rem;
  color: var(--text3);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.command-chip {
  font-family: var(--mono);
  font-size: 0.64rem;
  color: var(--accent);
  border: 1px solid rgba(79, 140, 255, 0.22);
  background: rgba(79, 140, 255, 0.08);
  border-radius: 999px;
  padding: 0.2rem 0.5rem;
}

.command-output {
  border-top: 1px solid var(--border);
  padding: 0.9rem 1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text2);
  background: rgba(0, 0, 0, 0.12);
  display: none;
  white-space: pre-wrap;
}

.command-output:not(:empty) {
  display: block;
}

/* === css/interactive/interactive-reading.css === */

/* ---------- continue reading ---------- */
.continue-reading-card {
  position: relative;
  display: grid;
  gap: 0.7rem;
  padding: 1rem;
  margin: 1.5rem auto;
  max-width: 1180px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(79, 140, 255, 0.1), rgba(124, 92, 255, 0.06));
}

.continue-reading-close {
  position: absolute;
  top: 0.55rem;
  right: 0.65rem;
  display: grid;
  width: 1.65rem;
  height: 1.65rem;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: var(--text2);
  background: transparent;
  font: 500 1.15rem/1 var(--mono);
  cursor: pointer;
  transition: color 160ms ease, background 160ms ease;
}

.continue-reading-close:hover,
.continue-reading-close:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.continue-reading-card .eyebrow {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
}

.continue-reading-card a {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.continue-meter {
  height: 5px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
}

.continue-meter span {
  display: block;
  height: 100%;
  width: var(--progress, 0%);
  background: linear-gradient(90deg, var(--accent), var(--accent-alt, #7c5cff));
}

/* ---------- home activity graph ---------- */
.activity-panel {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 6vw 5rem;
  position: relative;
  z-index: 1;
}

.activity-card {
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.035), rgba(79, 140, 255, 0.05));
  overflow: hidden;
}

.activity-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
  margin-bottom: 1.4rem;
}

.activity-header h2 {
  font-family: var(--display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: -0.03em;
}

.activity-header p {
  color: var(--text2);
  max-width: 34rem;
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(8, minmax(22px, 1fr));
  gap: 0.45rem;
}

.activity-cell {
  aspect-ratio: 1;
  border-radius: 7px;
  border: 1px solid rgba(79, 140, 255, 0.12);
  background: rgba(255, 255, 255, 0.035);
  position: relative;
}

.activity-cell[data-level="1"] { background: rgba(79, 140, 255, 0.14); }
.activity-cell[data-level="2"] { background: rgba(79, 140, 255, 0.24); }
.activity-cell[data-level="3"] { background: rgba(47, 191, 113, 0.3); }

.activity-cell:hover::after {
  content: attr(aria-label);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.45rem);
  transform: translateX(-50%);
  width: max-content;
  max-width: 220px;
  padding: 0.35rem 0.5rem;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text2);
  font: 0.65rem var(--mono);
  z-index: 3;
}

/* ---------- reader modes ---------- */
.reader-panel {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 110;
  display: grid;
  gap: 0.45rem;
  padding: 0.55rem;
  border: 1px solid var(--border);
  background: var(--interactive-panel);
  backdrop-filter: blur(14px);
  border-radius: 16px;
  box-shadow: var(--interactive-shadow);
}

.reader-panel-title {
  font: 0.63rem var(--mono);
  color: var(--text3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0 0.3rem;
}

.reader-panel-buttons {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: end;
}

.reader-mode-btn,
.code-tool-btn,
.lab-mode-btn,
.hint-btn,
.playground-btn,
.path-filter-btn {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text2);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.38rem 0.6rem;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition);
}

.reader-mode-btn:hover,
.reader-mode-btn.is-active,
.code-tool-btn:hover,
.code-tool-btn.is-active,
.lab-mode-btn:hover,
.lab-mode-btn.is-active,
.hint-btn:hover,
.hint-btn.is-active,
.playground-btn:hover,
.path-filter-btn:hover,
.path-filter-btn.is-active {
  color: var(--accent);
  border-color: rgba(79, 140, 255, 0.28);
  background: rgba(79, 140, 255, 0.1);
  transform: translateY(-1px);
}

body.post-page[data-reader-mode="compact"] article {
  font-size: 0.96rem;
}

body.post-page[data-reader-mode="compact"] article p,
body.post-page[data-reader-mode="compact"] article ul,
body.post-page[data-reader-mode="compact"] article ol {
  margin-bottom: 0.75rem;
}

body.post-page[data-reader-mode="commands"] article > :not(h2):not(h3):not(.code-block):not(.lab-section):not(.lab-divider),
body.post-page[data-reader-mode="commands"] .lab-section > :not(.lab-header):not(.lab-controls):not(.code-block):not(h3) {
  display: none !important;
}

body.post-page[data-reader-mode="explain"] .code-block,
body.post-page[data-reader-mode="explain"] .vuln-query,
body.post-page[data-reader-mode="explain"] .screenshot-wrap,
body.post-page[data-reader-mode="explain"] .screenshot-grid {
  display: none !important;
}

/* ---------- attack chain ---------- */
.attack-chain {
  margin: -1rem 0 3rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.025);
}

.attack-chain-title {
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--text3);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.attack-chain-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.attack-step {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text2);
  font-family: var(--mono);
  font-size: 0.68rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.36rem 0.62rem;
  background: rgba(255, 255, 255, 0.025);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.attack-step.is-active {
  color: var(--accent);
  border-color: rgba(79, 140, 255, 0.34);
  background: rgba(79, 140, 255, 0.1);
}

/* === css/interactive/interactive-playgrounds.css === */

/* ---------- playgrounds ---------- */
.security-playground {
  margin: -1.2rem 0 3rem;
  border: 1px solid rgba(79, 140, 255, 0.22);
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(79, 140, 255, 0.08), rgba(255, 255, 255, 0.025));
  overflow: hidden;
}

.playground-head {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  display: grid;
  gap: 0.2rem;
}

.playground-kicker {
  font: 0.65rem var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.playground-head h2 {
  font-family: var(--display);
  font-size: 1.35rem;
  margin: 0;
}

.playground-head p {
  color: var(--text2);
  margin: 0;
}

.playground-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem;
}

.playground-field {
  display: grid;
  gap: 0.45rem;
}

.playground-field label,
.playground-label {
  font: 0.68rem var(--mono);
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.playground-input,
.playground-select,
.playground-output {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.16);
  color: var(--text);
  font: 0.82rem/1.65 var(--mono);
  padding: 0.75rem;
}

.playground-input {
  min-height: 150px;
  resize: vertical;
}

.playground-output {
  min-height: 150px;
  white-space: pre-wrap;
  overflow: auto;
}

.playground-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.playground-warning-list {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.75rem;
}

.playground-warning {
  color: var(--warning, #d3a35f);
  font: 0.73rem var(--mono);
  border: 1px solid rgba(211, 163, 95, 0.22);
  border-radius: 10px;
  padding: 0.45rem 0.55rem;
  background: rgba(211, 163, 95, 0.08);
}

.playground-note {
  color: var(--text3);
  font-size: 0.85rem;
}

/* ---------- lab modules / progressive hints ---------- */
.lab-controls {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
  margin: 1rem 0 1.2rem;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.lab-controls::before {
  content: "lab view";
  font: 0.64rem var(--mono);
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-right: 0.25rem;
}

.lab-section[data-lab-view="code"] > :not(.lab-header):not(.lab-controls):not(.code-block):not(h3),
.lab-section[data-lab-view="overview"] .code-block,
.lab-section[data-lab-view="overview"] table,
.lab-section[data-lab-view="overview"] .breakdown,
.lab-section[data-lab-view="overview"] .screenshot-wrap,
.lab-section[data-lab-view="overview"] .screenshot-grid {
  display: none !important;
}

.progressive-hints {
  display: grid;
  gap: 0.55rem;
  margin: 0 0 1.25rem;
  padding: 0.75rem;
  border: 1px dashed rgba(79, 140, 255, 0.24);
  border-radius: 14px;
  background: rgba(79, 140, 255, 0.05);
}

.progressive-hints-title {
  font: 0.67rem var(--mono);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hint-reveal {
  display: none;
  color: var(--text2);
  font-size: 0.92rem;
}

.hint-reveal.is-visible {
  display: block;
}

.hint-reveal code {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.1rem 0.28rem;
}

.redacted {
  display: inline-block;
  color: transparent;
  background: linear-gradient(90deg, rgba(79, 140, 255, 0.25), rgba(255, 255, 255, 0.08));
  border-radius: 4px;
  padding: 0 0.25rem;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.redacted.is-revealed,
.redacted:hover {
  color: var(--text);
  background: rgba(79, 140, 255, 0.12);
}

/* ---------- enhanced code blocks ---------- */
.code-block-header {
  gap: 0.45rem;
}

.code-tool-group {
  margin-left: auto;
  display: inline-flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: end;
}

.code-block.is-collapsed pre {
  display: none;
}

.code-block.is-wrapped pre,
.code-block.is-wrapped code {
  white-space: pre-wrap;
  word-break: break-word;
}

.code-explain {
  display: none;
  padding: 0.8rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--text2);
  font-size: 0.9rem;
  background: rgba(79, 140, 255, 0.05);
}

.code-block.is-explaining .code-explain {
  display: block;
}

/* === css/interactive/interactive-learning.css === */

/* ---------- learning path page ---------- */
.path-page .path-hero {
  padding: 5rem 6vw 2.5rem;
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  gap: 1rem;
}

.path-page .path-hero h1 {
  font-family: var(--display);
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.path-page .path-hero p {
  max-width: 44rem;
  color: var(--text2);
  font-size: 1.05rem;
}

.path-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.path-stat {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.025);
  border-radius: 16px;
  padding: 1rem;
}

.path-stat strong {
  display: block;
  font: 700 1.6rem var(--display);
}

.path-stat span {
  color: var(--text3);
  font: 0.7rem var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.path-controls,
.path-board {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 6vw;
}

.path-controls {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.path-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-bottom: 5rem;
}

.learning-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 0.85rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.025);
  border-radius: 18px;
  padding: 1.1rem;
}

.learning-card.is-hidden {
  display: none;
}

.learning-card-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.learning-card h2 {
  font-family: var(--display);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.learning-status {
  flex: 0 0 auto;
  font: 0.62rem var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text3);
}

.learning-status.done {
  color: var(--success, #2fbf71);
  border-color: rgba(47, 191, 113, 0.3);
  background: rgba(47, 191, 113, 0.1);
}

.learning-status.progress {
  color: var(--warning, #d3a35f);
  border-color: rgba(211, 163, 95, 0.3);
  background: rgba(211, 163, 95, 0.1);
}

.learning-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.learning-tags span {
  font: 0.63rem var(--mono);
  color: var(--accent);
  border: 1px solid rgba(79, 140, 255, 0.18);
  border-radius: 999px;
  padding: 0.2rem 0.48rem;
  background: rgba(79, 140, 255, 0.07);
}

.learning-card p {
  color: var(--text2);
}

.learning-card a {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.76rem;
}

@media (max-width: 820px) {
  .playground-body,
  .path-board,
  .path-stats {
    grid-template-columns: 1fr;
  }

  .reader-panel {
    left: 1rem;
    right: 1rem;
  }

  .activity-grid {
    grid-template-columns: repeat(6, minmax(22px, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .boot-overlay,
  .command-palette,
  [data-glow-card]::after,
  .profile-card::before,
  .cert-card::before,
  .post-card::before,
  .post-featured::before,
  .contact-card::before,
  .related-post-card::before,
  .post-nav-card::before,
  .learning-card::before {
    transition: none !important;
  }
}

/* === css/interactive/interactive-polish.css === */

/* ---------- optional premium touches from the original idea list ---------- */
.hero .hero-type-line:last-child::after,
.hero h1.is-typing em::after {
  content: "";
  display: inline-block;
  width: 0.5ch;
  height: 0.9em;
  margin-left: 0.08em;
  background: currentColor;
  transform: translateY(0.08em);
  animation: cursor-blink 0.9s steps(2, start) infinite;
}

@keyframes cursor-blink {
  50% { opacity: 0; }
}

.skill-meter-list {
  display: grid;
  gap: 0.8rem;
  margin-top: 1.1rem;
}

.skill-meter {
  display: grid;
  gap: 0.35rem;
}

.skill-meter-top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text2);
}

.skill-meter-track {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.045);
}

.skill-meter-fill {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-alt, #7c5cff));
  transition: width 1.1s cubic-bezier(.2,.8,.2,1);
}

.skill-meter.is-visible .skill-meter-fill {
  width: var(--value, 50%);
}

.cursor-ring {
  position: fixed;
  left: 0;
  top: 0;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(79, 140, 255, 0.45);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9997;
  transform: translate3d(-100px, -100px, 0);
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity 0.18s ease, width 0.18s ease, height 0.18s ease, border-color 0.18s ease;
}

.cursor-ring.is-visible {
  opacity: 1;
}

.cursor-ring.is-active {
  width: 48px;
  height: 48px;
  border-color: rgba(79, 140, 255, 0.75);
}

@media (hover: none), (pointer: coarse), (prefers-reduced-motion: reduce) {
  .cursor-ring { display: none; }
}

.path-page .page-breadcrumb {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.path-page .page-breadcrumb a {
  color: var(--accent);
}

/* ---------- precise continue-reading resume ---------- */
.continue-reading-location {
  color: var(--text2);
  font-size: 0.9rem;
  line-height: 1.5;
}

.resume-toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 1200;
  display: grid;
  gap: 0.35rem;
  width: min(340px, calc(100vw - 2rem));
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel, #111827) 92%, transparent);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
  transform: translateY(16px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.resume-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.resume-toast.is-hiding {
  opacity: 0;
  transform: translateY(14px);
}

.resume-toast-kicker {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
}

.resume-toast strong {
  color: var(--text);
  line-height: 1.35;
}

.resume-toast button {
  justify-self: start;
  margin-top: 0.25rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid rgba(79, 140, 255, 0.3);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(79, 140, 255, 0.08);
  font: 600 0.78rem var(--mono);
  cursor: pointer;
}

.resume-toast button:hover {
  border-color: rgba(79, 140, 255, 0.6);
}

/* ---------- controlled header-only particle fields ---------- */
.header-with-particles {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.header-with-particles > :not(.site-particle-canvas) {
  position: relative;
  z-index: 1;
}

.site-particle-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.5;
  mix-blend-mode: screen;
  mask-image: linear-gradient(180deg, transparent 0%, #000 12%, #000 76%, transparent 100%);
}

.hero .site-particle-canvas,
.hero-particle-canvas {
  z-index: -2;
  opacity: 0.78;
  mask-image: radial-gradient(circle at 44% 42%, #000 0%, #000 54%, transparent 96%);
}

.page-particle-canvas,
.path-particle-canvas {
  opacity: 0.44;
}

.post-particle-canvas {
  opacity: 0.32;
  mask-image: linear-gradient(180deg, transparent 0%, #000 18%, #000 68%, transparent 100%);
}

html[data-theme="light"] .site-particle-canvas {
  opacity: 0.26;
  mix-blend-mode: multiply;
}

html[data-theme="light"] .hero .site-particle-canvas,
html[data-theme="light"] .hero-particle-canvas {
  opacity: 0.44;
}

html[data-theme="light"] .post-particle-canvas {
  opacity: 0.2;
}

@media (max-width: 680px), (prefers-reduced-motion: reduce) {
  .page-particle-canvas,
  .path-particle-canvas,
  .post-particle-canvas {
    opacity: 0.2;
  }
}

/* ---------- maintainability patch: dynamic activity + safer controls ---------- */
.command-output pre {
  margin: 0;
  white-space: pre-wrap;
}

.command-followups {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

.command-followup-btn {
  border: 1px solid rgba(79, 140, 255, 0.3);
  background: rgba(79, 140, 255, 0.08);
  color: var(--accent);
  border-radius: 999px;
  padding: 0.4rem 0.65rem;
  font: 600 0.68rem var(--mono);
  cursor: pointer;
  text-transform: lowercase;
}

.command-followup-btn:hover,
.command-followup-btn:focus-visible {
  border-color: rgba(79, 140, 255, 0.65);
  background: rgba(79, 140, 255, 0.14);
}

.activity-grid-wrap {
  overflow-x: auto;
  overflow-y: visible;
  padding: 0.2rem 0 0.65rem;
  scrollbar-width: thin;
}

.activity-grid {
  grid-template-columns: repeat(var(--activity-months, 12), minmax(34px, 1fr));
  min-width: max-content;
  align-items: start;
}

.activity-month {
  display: grid;
  gap: 0.38rem;
  min-width: 34px;
}

.activity-month-label {
  display: block;
  text-align: center;
  color: var(--text3);
  font: 0.58rem var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.activity-cell[data-level="4"] {
  background: rgba(47, 191, 113, 0.42);
  border-color: rgba(47, 191, 113, 0.32);
}

.learning-updated {
  width: max-content;
  color: var(--text3);
  font: 0.66rem var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

canvas.site-particle-canvas,
.site-particle-canvas {
  pointer-events: none !important;
}

@media (max-width: 820px) {
  .activity-grid {
    grid-template-columns: repeat(var(--activity-months, 12), minmax(30px, 1fr));
  }

  .activity-month {
    min-width: 30px;
  }
}