/* ============================================================
   DIY Eurorack Build — Global Stylesheet
   Dark / oscilloscope aesthetic. Amber accent.
   ============================================================ */

/* -- Fonts -------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Inter:wght@400;500;600&display=swap');

/* -- Reset / Base ------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0d0d0d;
  --bg2:         #141414;
  --bg3:         #1a1a1a;
  --border:      #2a2a2a;
  --border2:     #333;
  --text:        #d4d4d4;
  --text-dim:    #888;
  --text-bright: #f0f0f0;
  --accent:      #f5a623;
  --accent-dim:  #c47d0a;
  --accent-glow: rgba(245, 166, 35, 0.15);

  --green:       #4caf77;
  --green-bg:    rgba(76, 175, 119, 0.12);
  --amber:       #f5a623;
  --amber-bg:    rgba(245, 166, 35, 0.12);
  --grey:        #666;
  --grey-bg:     rgba(100, 100, 100, 0.12);
  --red:         #e05252;
  --red-bg:      rgba(224, 82, 82, 0.12);

  --mono:        'JetBrains Mono', 'Courier New', monospace;
  --sans:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius:      4px;
  --radius-lg:   8px;
  --nav-h:       56px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.9rem;
  line-height: 1.6;
  min-height: 100vh;
}

/* -- Typography --------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--mono);
  color: var(--text-bright);
  font-weight: 700;
  letter-spacing: -0.02em;
}
h1 { font-size: 1.6rem; }
h2 { font-size: 1.2rem; margin-bottom: 1rem; }
h3 { font-size: 1rem; }
h4 { font-size: 0.85rem; }

p { color: var(--text); margin-bottom: 0.75rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--text-bright); text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: 0.85em; }
pre { font-family: var(--mono); font-size: 0.82rem; }

/* -- Layout ------------------------------------------------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.page-content {
  padding: calc(var(--nav-h) + 2rem) 0 3rem;
}

/* -- Navigation --------------------------------------------- */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(13, 13, 13, 0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  /* overflow must be visible so mobile dropdown can escape the bar */
  overflow: visible;
}

.nav-inner {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  height: 100%;
}

.nav-logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent);
  white-space: nowrap;
  margin-right: auto;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo:hover { color: var(--accent); text-decoration: none; opacity: 0.85; }

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  flex-wrap: nowrap;   /* never wrap — use hamburger instead */
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
  text-decoration: none;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  background: var(--accent-glow);
}

/* Hamburger button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-dim);
  border-radius: 2px;
  transition: all 0.2s;
}
.nav-hamburger:hover span { background: var(--accent); }
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile dropdown */
@media (max-width: 640px) {
  .nav-hamburger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(13, 13, 13, 0.98);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 0.5rem 0.75rem 0.75rem;
    gap: 0.15rem;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 0.55rem 0.75rem;
    font-size: 0.85rem;
    border-radius: var(--radius);
  }
}

/* -- Cards -------------------------------------------------- */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.card-sm { padding: 0.875rem; }

.card:hover { border-color: var(--border2); }

/* -- Badges ------------------------------------------------- */
.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.badge-done        { color: var(--green); background: var(--green-bg); border: 1px solid var(--green); }
.badge-in_progress { color: var(--amber); background: var(--amber-bg); border: 1px solid var(--amber); }
.badge-not_started { color: var(--grey);  background: var(--grey-bg);  border: 1px solid var(--grey); }

.badge-phase {
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border2);
  font-size: 0.65rem;
}

.badge-beginner    { color: var(--green); background: var(--green-bg); border: 1px solid var(--green); }
.badge-intermediate{ color: var(--amber); background: var(--amber-bg); border: 1px solid var(--amber); }
.badge-advanced    { color: var(--red);   background: var(--red-bg);   border: 1px solid var(--red);   }

.badge-pcb       { color: #7eb8f7; background: rgba(126,184,247,0.1); border: 1px solid #7eb8f7; }
.badge-perfboard { color: #c4a3f5; background: rgba(196,163,245,0.1); border: 1px solid #c4a3f5; }
.badge-stripboard{ color: #7ef7c4; background: rgba(126,247,196,0.1); border: 1px solid #7ef7c4; }
.badge-tbd       { color: var(--grey); background: var(--grey-bg); border: 1px solid var(--grey); }

/* -- Tables ------------------------------------------------- */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
th {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border2);
  text-align: left;
  white-space: nowrap;
}
td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg3); }

.table-wrap {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

/* -- Progress bars ------------------------------------------ */
.progress-bar {
  height: 6px;
  background: var(--bg3);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.4s ease;
}
.progress-fill.done-only { background: var(--green); }

/* -- Stats strip -------------------------------------------- */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.stat-cell {
  background: var(--bg2);
  padding: 1rem;
  text-align: center;
}
.stat-value {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1.1;
}
.stat-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.2rem;
}

/* -- Section headers ---------------------------------------- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.section-title {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* -- Signal chain (index.html hero) ------------------------- */
.signal-chain {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  padding: 1.5rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}
.chain-node {
  background: var(--bg3);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 0.5rem 0.9rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}
.chain-node.external {
  border-color: var(--border2);
  color: var(--text-dim);
}
.chain-node.modulation {
  border-color: var(--green);
  color: var(--green);
  font-size: 0.7rem;
}
.chain-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 0.4rem;
}
.chain-arrow-line {
  width: 32px;
  height: 1px;
  background: var(--border2);
  position: relative;
}
.chain-arrow-line::after {
  content: '';
  position: absolute;
  right: -4px;
  top: -3px;
  border: 4px solid transparent;
  border-left: 5px solid var(--border2);
}
.chain-arrow-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  margin-top: 0.2rem;
  white-space: nowrap;
}

/* -- Signal flow diagram (patches.html) --------------------- */
.signal-flow-diagram {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1rem;
  background: var(--bg3);
  border-radius: var(--radius);
  overflow-x: auto;
}
.flow-connection {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  white-space: nowrap;
}
.flow-node-from {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 0.2rem 0.6rem;
  color: var(--text-bright);
  min-width: 120px;
  text-align: center;
}
.flow-label {
  color: var(--text-dim);
  font-size: 0.65rem;
  flex: 1;
  text-align: center;
  position: relative;
}
.flow-label::before {
  content: '────';
  color: var(--border2);
  margin-right: 0.25rem;
}
.flow-label::after {
  content: '──▶';
  color: var(--accent);
  margin-left: 0.25rem;
}
.flow-node-to {
  background: var(--bg2);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 0.2rem 0.6rem;
  color: var(--accent);
  min-width: 120px;
  text-align: center;
}

/* -- Filter bar --------------------------------------------- */
.filter-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.filter-btn {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.7rem;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 999px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.active { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }

/* -- View toggle -------------------------------------------- */
.view-toggle {
  display: flex;
  gap: 0;
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  overflow: hidden;
}
.view-btn {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.7rem;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
}
.view-btn.active { background: var(--accent-glow); color: var(--accent); }
.view-btn + .view-btn { border-left: 1px solid var(--border2); }

/* -- Module cards (grid view) ------------------------------- */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.875rem;
}

.module-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s;
  text-decoration: none;
  display: block;
  color: inherit;
}
.module-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  text-decoration: none;
}
.module-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.module-card-name {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-bright);
}
.module-card-badges {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.module-card-notes {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
}

/* -- Patch cards -------------------------------------------- */
.patch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.patch-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.patch-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

/* -- Blog post cards ---------------------------------------- */
.post-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: block;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s;
}
.post-card:hover { border-color: var(--accent); text-decoration: none; }
.post-card-meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 0.4rem;
}
.post-card-title {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
}
.post-card-summary {
  font-size: 0.83rem;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 0.75rem;
}
.post-tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}
.post-tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius);
}

/* -- Voltage reference tables ------------------------------- */
.rule-safe    { color: var(--green); }
.rule-warning { color: var(--amber); }
.rule-danger  { color: var(--red); }

.rule-icon { font-size: 1rem; margin-right: 0.35rem; }

.cheat-sheet {
  background: var(--bg2);
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.cheat-sheet table { font-size: 0.82rem; }
.cheat-sheet td:first-child {
  font-family: var(--mono);
  color: var(--text-dim);
  width: 45%;
}
.cheat-sheet td:last-child {
  font-family: var(--mono);
  color: var(--accent);
  font-weight: 700;
}
.cheat-sheet-header {
  background: var(--accent);
  color: #000;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.5rem 0.75rem;
}

/* -- Module detail page ------------------------------------- */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
  align-items: start;
}

.detail-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.meta-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
}
.meta-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.2rem;
}
.meta-value {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-bright);
  font-weight: 700;
}

/* -- Notes editor ------------------------------------------- */
.notes-area {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.83rem;
  padding: 0.75rem;
  resize: vertical;
  min-height: 80px;
  line-height: 1.6;
}
.notes-area:focus { outline: none; border-color: var(--accent); }

.btn {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--border2);
  cursor: pointer;
  transition: all 0.15s;
  background: transparent;
  color: var(--text-dim);
}
.btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #000; font-weight: 700; }
.btn-primary:hover { background: var(--accent-dim); border-color: var(--accent-dim); color: #000; }

/* -- Blog post rendered content ----------------------------- */
.post-body { max-width: 720px; }
.post-body h1, .post-body h2, .post-body h3, .post-body h4 {
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}
.post-body p { margin-bottom: 1rem; }
.post-body ul, .post-body ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}
.post-body li { margin-bottom: 0.25rem; }
.post-body code {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.1rem 0.4rem;
  font-size: 0.82em;
}
.post-body pre {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}
.post-body pre code {
  background: none;
  border: none;
  padding: 0;
}
.post-body blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin-bottom: 1rem;
  color: var(--text-dim);
}
.post-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
}

/* -- Post navigation ---------------------------------------- */
#post-nav-placeholder {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 var(--gap) 3rem;
}
.post-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
}
.post-nav-item {
  font-family: var(--mono);
  font-size: 0.875rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s;
  max-width: 46%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0.5rem 0;
}
.post-nav-item:hover { color: var(--accent); text-decoration: none; }
.post-nav-item.next { text-align: right; }
.post-nav-dir { display: none; }
.post-nav-title { color: inherit; }

/* -- Phase progress section --------------------------------- */
.phase-progress-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}
.phase-row {
  display: grid;
  grid-template-columns: 160px 1fr 64px;
  align-items: center;
  gap: 0.875rem;
}
.phase-name {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-bright);
}
.phase-count {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  text-align: right;
}

/* -- Currently building ------------------------------------- */
.building-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.building-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.875rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s;
}
.building-item:hover { border-color: var(--amber); text-decoration: none; }
.building-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.building-name {
  font-family: var(--mono);
  font-size: 0.83rem;
  font-weight: 700;
  color: var(--text-bright);
  flex: 1;
}

/* -- Dashboard grid ----------------------------------------- */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}
.dashboard-full { grid-column: 1 / -1; }

/* -- Hero --------------------------------------------------- */
.hero {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.hero-title {
  font-family: var(--mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}
.hero-title span { color: var(--accent); }
.hero-sub {
  font-family: var(--mono);
  font-size: 0.83rem;
  color: var(--text-dim);
}

/* -- Page header -------------------------------------------- */
.page-header {
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.page-title {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.25rem;
}
.page-subtitle {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* -- Empty state -------------------------------------------- */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.83rem;
}

/* -- Loading spinner ---------------------------------------- */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.83rem;
}

/* -- Misc --------------------------------------------------- */
.flex-gap { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.text-dim { color: var(--text-dim); }
.text-accent { color: var(--accent); }
.text-mono { font-family: var(--mono); }
.hidden { display: none !important; }
.note-saved { color: var(--green); font-family: var(--mono); font-size: 0.75rem; }

/* -- Responsive --------------------------------------------- */
@media (max-width: 768px) {
  .dashboard-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
  .phase-row { grid-template-columns: 1fr 1fr; }
  .phase-row .progress-bar { display: none; }
  .hero-title { font-size: 1.5rem; }
  .module-grid { grid-template-columns: 1fr; }
  .patch-grid { grid-template-columns: 1fr; }
  .detail-meta { grid-template-columns: 1fr; }
}

/* -- Print (voltage reference cheat sheet) ------------------ */
@media print {
  nav, .filter-bar, .view-toggle, .btn { display: none !important; }
  body { background: #fff; color: #000; }
  .card, .table-wrap, .cheat-sheet {
    border: 1px solid #ccc;
    box-shadow: none;
  }
  .cheat-sheet td:last-child { color: #c47d0a; }
  .page-content { padding-top: 0; }
}