/* ==========================================================================
   Nilo Garciano Jr. — Engineering Workspace
   Design system: calm, light, precise. Inspired by Linear/Notion/Stripe/Apple/Raycast.
   Signature: monospace "system labels" (eyebrows, IDs, status chips) paired with
   a clean grotesk body — the workspace speaks like a well-kept internal tool.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;650;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ---------- Tokens ---------- */
:root{
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', ui-monospace, Menlo, Consolas, monospace;

  --color-bg: #ffffff;
  --color-canvas: #fbfbfc;
  --color-sidebar: #f8f8f7;
  --color-surface: #ffffff;
  --color-surface-raised: #ffffff;
  --color-border: #e6e6e9;
  --color-border-strong: #d7d7dc;
  --color-text: #17181c;
  --color-text-secondary: #64656d;
  --color-text-tertiary: #96979f;
  --color-accent: #3e5fd9;
  --color-accent-hover: #3450bd;
  --color-accent-soft: #eef1fc;
  --color-accent-soft-strong: #e0e5fa;
  --color-success: #1e8e5a;
  --color-success-soft: #e7f6ee;
  --color-warning: #b7791f;
  --color-warning-soft: #fcf3e3;
  --color-danger: #c0362c;
  --color-danger-soft: #fbeae9;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 999px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  --shadow-sm: 0 1px 2px rgba(20, 21, 26, 0.04);
  --shadow-md: 0 4px 16px rgba(20, 21, 26, 0.06);

  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --sidebar-w: 272px;

  color-scheme: light;
}

[data-theme="dark"]{
  --color-bg: #121214;
  --color-canvas: #17181a;
  --color-sidebar: #161719;
  --color-surface: #1c1d20;
  --color-surface-raised: #202126;
  --color-border: #2c2d31;
  --color-border-strong: #3a3b41;
  --color-text: #f1f1f3;
  --color-text-secondary: #a3a4ac;
  --color-text-tertiary: #75767e;
  --color-accent: #8393f2;
  --color-accent-hover: #97a5f5;
  --color-accent-soft: #202544;
  --color-accent-soft-strong: #272d54;
  --color-success: #3fcb8b;
  --color-success-soft: #16281f;
  --color-warning: #e2a94a;
  --color-warning-soft: #2b2416;
  --color-danger: #e57a72;
  --color-danger-soft: #2c1c1b;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.24);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.32);
  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}
h1,h2,h3,h4,p,ul,ol,figure{ margin: 0; }
ul,ol{ padding: 0; list-style: none; }
a{ color: inherit; text-decoration: none; }
button{ font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input{ font: inherit; color: inherit; }
img,svg{ display: block; max-width: 100%; }
kbd{
  font-family: var(--font-mono);
  font-size: 11px;
}
::selection{ background: var(--color-accent-soft-strong); }

:focus-visible{
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Typography helpers ---------- */
.eyebrow{
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before{
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--color-accent);
  display: inline-block;
}
.page-title{
  font-size: clamp(1.65rem, 1.4rem + 1vw, 2.15rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-top: 10px;
}
.page-lede{
  margin-top: 14px;
  max-width: 62ch;
  color: var(--color-text-secondary);
  font-size: 15.5px;
  line-height: 1.65;
}
.section-title{
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.section-kicker{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}
.mono{ font-family: var(--font-mono); }
.muted{ color: var(--color-text-secondary); }

/* ---------- App shell ---------- */
.app-shell{
  display: flex;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar{
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--color-sidebar);
  border-right: 1px solid var(--color-border);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  z-index: 40;
  transition: transform .25s var(--ease);
}

.sidebar-header{
  padding: 22px 20px 16px;
  border-bottom: 1px solid var(--color-border);
}
.brand-name{
  font-size: 15.5px;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.brand-role{
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.status-pill{
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-success);
  background: var(--color-success-soft);
  padding: 5px 10px 5px 8px;
  border-radius: var(--radius-full);
}
.status-dot{
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-success) 18%, transparent);
}
.meta-row{
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-tertiary);
  flex-wrap: wrap;
}
.meta-row svg{ width: 12px; height: 12px; }
.meta-sep{ color: var(--color-border-strong); }

.sidebar-search{ padding: 14px 16px 8px; }
.search-trigger{
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-tertiary);
  font-size: 13px;
  transition: border-color .15s var(--ease), background .15s var(--ease);
}
.search-trigger:hover{ border-color: var(--color-border-strong); }
.search-trigger svg{ width: 15px; height: 15px; flex-shrink: 0; }
.search-trigger span{ flex: 1; text-align: left; }
.search-trigger kbd{
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--color-text-tertiary);
  background: var(--color-canvas);
}

.sidebar-nav{
  flex: 1;
  overflow-y: auto;
  padding: 6px 12px 12px;
}
.nav-group{ margin-top: 14px; }
.nav-group:first-child{ margin-top: 4px; }
.nav-group-label{
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  padding: 0 8px;
  margin-bottom: 4px;
}
.nav-link{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 8px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--color-text-secondary);
  transition: background .15s var(--ease), color .15s var(--ease);
}
.nav-link svg{ width: 16px; height: 16px; flex-shrink: 0; opacity: 0.85; }
.nav-link:hover{ background: var(--color-border); background: color-mix(in srgb, var(--color-border) 55%, transparent); color: var(--color-text); }
.nav-link.active{
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-weight: 550;
}
.nav-link.active svg{ opacity: 1; }

.sidebar-footer{
  padding: 12px;
  border-top: 1px solid var(--color-border);
}
.theme-toggle{
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-secondary);
}
.theme-toggle:hover{ background: color-mix(in srgb, var(--color-border) 55%, transparent); color: var(--color-text); }
.theme-toggle svg{ width: 16px; height: 16px; }

.sidebar-overlay{
  display: none;
  position: fixed; inset: 0;
  background: rgba(10,10,12,0.35);
  z-index: 35;
}

/* ---------- Mobile topbar ---------- */
.topbar-mobile{
  display: none;
  position: sticky;
  top: 0;
  z-index: 30;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: color-mix(in srgb, var(--color-canvas) 88%, transparent);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.topbar-mobile .brand-name{ font-size: 14px; }
.icon-btn{
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.icon-btn svg{ width: 17px; height: 17px; }
.icon-btn:hover{ border-color: var(--color-border-strong); color: var(--color-text); }

/* ---------- Main ---------- */
.app-main{
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
  background: var(--color-canvas);
}
.page-content{
  max-width: 880px;
  padding: 56px 48px 96px;
  margin: 0 auto;
  animation: fadeIn .35s var(--ease);
}
@keyframes fadeIn{
  from{ opacity: 0; transform: translateY(4px); }
  to{ opacity: 1; transform: translateY(0); }
}
.page-header{ margin-bottom: 40px; }
.page-header-row{
  display:flex; align-items:flex-start; justify-content:space-between; gap: 20px; flex-wrap: wrap;
}

.page-footer{
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--color-text-tertiary);
}
.page-footer a:hover{ color: var(--color-text); }

/* ---------- Grid utilities ---------- */
.grid{ display: grid; gap: 16px; }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
.span-2{ grid-column: span 2; }
.span-3{ grid-column: span 3; }
@media (max-width: 900px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr 1fr; }
  .span-2, .span-3{ grid-column: span 2; }
}
@media (max-width: 620px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
  .span-2, .span-3{ grid-column: span 1; }
}

/* ---------- Card ---------- */
.card{
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease), transform .18s var(--ease);
}
a.card:hover, .card.hoverable:hover{
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}
.card-icon{
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.card-icon svg{ width: 17px; height: 17px; }
.card-label{
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 6px;
}
.card-title{
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.card-title-lg{ font-size: 18px; font-weight: 650; }
.card-sub{
  font-size: 12.5px;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}
.card-body{
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.card-link-row{
  margin-top: 14px;
  display: flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 550; color: var(--color-accent);
}
.card-link-row svg{ width: 13px; height: 13px; transition: transform .15s var(--ease); }
a.card:hover .card-link-row svg{ transform: translateX(2px); }

/* ---------- Chips / tags ---------- */
.chip-row{ display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip{
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 11px;
  font-size: 12.5px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  background: var(--color-surface);
}
.chip svg{ width: 12px; height: 12px; }
.chip-mono{ font-family: var(--font-mono); font-size: 12px; }

/* ---------- Status badges ---------- */
.badge{
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 550;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.badge::before{ content:""; width:6px; height:6px; border-radius:50%; }
.badge-progress{ color: var(--color-warning); background: var(--color-warning-soft); }
.badge-progress::before{ background: var(--color-warning); }
.badge-done{ color: var(--color-success); background: var(--color-success-soft); }
.badge-done::before{ background: var(--color-success); }
.badge-planned{ color: var(--color-text-secondary); background: var(--color-border); background: color-mix(in srgb, var(--color-border) 60%, transparent); }
.badge-planned::before{ background: var(--color-text-tertiary); }
.badge-accent{ color: var(--color-accent); background: var(--color-accent-soft); }
.badge-accent::before{ background: var(--color-accent); }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 550;
  border: 1px solid transparent;
  transition: background .15s var(--ease), border-color .15s var(--ease), color .15s var(--ease), transform .1s var(--ease);
}
.btn svg{ width: 15px; height: 15px; }
.btn:active{ transform: translateY(1px); }
.btn-primary{ background: var(--color-accent); color: #fff; }
.btn-primary:hover{ background: var(--color-accent-hover); }
.btn-secondary{ background: var(--color-surface); border-color: var(--color-border); color: var(--color-text); }
.btn-secondary:hover{ border-color: var(--color-border-strong); }
.btn-ghost{ color: var(--color-text-secondary); }
.btn-ghost:hover{ color: var(--color-text); background: color-mix(in srgb, var(--color-border) 50%, transparent); }
.btn-row{ display:flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }

/* ---------- Divider ---------- */
.divider{ height: 1px; background: var(--color-border); margin: 32px 0; border: none; }

/* ---------- Vertical pipeline (Mission Control) ---------- */
.pipeline{ position: relative; margin-top: 8px; }
.pipeline::before{
  content: "";
  position: absolute;
  left: 19px; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--color-border);
}
.pipeline-step{
  position: relative;
  display: flex;
  gap: 18px;
  padding: 20px 0;
}
.pipeline-step:first-child{ padding-top: 4px; }
.pipeline-node{
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent);
}
.pipeline-node svg{ width: 18px; height: 18px; }
.pipeline-content{ padding-top: 3px; flex: 1; }
.pipeline-index{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-tertiary);
  letter-spacing: 0.05em;
}
.pipeline-title{ font-size: 15.5px; font-weight: 600; margin-top: 3px; }
.pipeline-desc{ margin-top: 6px; font-size: 13.5px; color: var(--color-text-secondary); line-height: 1.65; max-width: 56ch; }

/* ---------- Timeline (Journey / Experience / Learning) ---------- */
.timeline{ position: relative; margin-top: 8px; }
.timeline::before{
  content: "";
  position: absolute;
  left: 5px; top: 6px; bottom: 6px;
  width: 1px;
  background: var(--color-border);
}
.timeline-item{ position: relative; padding: 0 0 32px 30px; }
.timeline-item:last-child{ padding-bottom: 4px; }
.timeline-dot{
  position: absolute; left: 0; top: 5px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
}
.timeline-item.is-current .timeline-dot{ background: var(--color-accent); }
.timeline-kicker{ font-family: var(--font-mono); font-size: 11px; color: var(--color-text-tertiary); letter-spacing: 0.04em; }
.timeline-title{ font-size: 15.5px; font-weight: 600; margin-top: 4px; }
.timeline-desc{ margin-top: 6px; font-size: 13.5px; color: var(--color-text-secondary); line-height: 1.65; max-width: 58ch; }

/* ---------- Automation flow (horizontal steps) ---------- */
.flow-row{
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 12px;
  flex-wrap: wrap;
}
.flow-step{
  flex: 1 1 140px;
  background: var(--color-canvas);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--color-text-secondary);
  position: relative;
  min-width: 140px;
}
.flow-step-title{ font-size: 12.5px; font-weight: 600; color: var(--color-text); margin-bottom: 3px; }
.flow-arrow{
  flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  width: 28px;
  color: var(--color-text-tertiary);
}
.flow-arrow svg{ width: 15px; height: 15px; }
@media (max-width: 700px){
  .flow-row{ flex-direction: column; }
  .flow-arrow{ width: 100%; height: 20px; transform: rotate(90deg); }
}

/* ---------- Section blocks (project pages, automation cards) ---------- */
.block{ margin-top: 32px; }
.block-title{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 10px;
}
.block-body{ font-size: 14.5px; color: var(--color-text-secondary); line-height: 1.7; max-width: 66ch; }
.block-body + .block-body{ margin-top: 10px; }
.bullet-list{ margin-top: 4px; }
.bullet-list li{
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.bullet-list li::before{
  content: "";
  position: absolute; left: 2px; top: 11px;
  width: 5px; height: 5px; border-radius: 1px;
  background: var(--color-text-tertiary);
}

/* ---------- Progress stage tracker ---------- */
.stage-tracker{ display: flex; align-items: center; gap: 0; margin-top: 16px; flex-wrap: wrap; }
.stage{
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px;
  color: var(--color-text-tertiary);
  padding-right: 10px;
}
.stage-dot{ width: 9px; height: 9px; border-radius: 50%; border: 2px solid var(--color-border-strong); background: var(--color-surface); flex-shrink:0; }
.stage.is-done{ color: var(--color-text-secondary); }
.stage.is-done .stage-dot{ border-color: var(--color-success); background: var(--color-success); }
.stage.is-current{ color: var(--color-accent); font-weight: 600; }
.stage.is-current .stage-dot{ border-color: var(--color-accent); background: var(--color-accent); }
.stage-line{ width: 20px; height: 1px; background: var(--color-border-strong); flex-shrink: 0; }

/* ---------- Empty state ---------- */
.empty-state{
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: left;
  color: var(--color-text-tertiary);
  font-size: 13px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.empty-state svg{ width: 17px; height: 17px; flex-shrink: 0; margin-top: 1px; color: var(--color-text-tertiary); }

/* ---------- Metric callout (before -> after) ---------- */
.metric-callout{
  display:flex; align-items:center; justify-content:center; gap:22px;
  padding: 28px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  margin-top: 12px;
  flex-wrap: wrap;
  text-align: center;
}
.metric-block{ display:flex; flex-direction:column; align-items:center; }
.metric-value{
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 650;
  color: var(--color-text);
  line-height:1.1;
}
.metric-value.is-before{ color: var(--color-text-tertiary); text-decoration: line-through; font-size:1.3rem; }
.metric-label{ font-size: 12px; color: var(--color-text-secondary); margin-top:6px; }
.metric-arrow{ color: var(--color-accent); flex-shrink:0; }
.metric-arrow svg{ width:20px; height:20px; }

/* ---------- Formula box ---------- */
.formula-box{
  font-family: var(--font-mono);
  font-size: 13.5px;
  text-align: center;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  color: var(--color-text);
  overflow-x: auto;
  white-space: nowrap;
  margin-top: 12px;
}

/* ---------- Sprint / plan rows ---------- */
.plan-row{
  display:flex; gap:16px; align-items:flex-start;
  padding: 14px 16px;
  border:1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.plan-row + .plan-row{ margin-top:8px; }
.plan-sprint{
  flex-shrink:0; width:76px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--color-accent);
  font-weight:600;
  padding-top:2px;
}
.plan-main{ flex:1; min-width:0; }
.plan-title{ font-size:13.5px; font-weight:600; }
.plan-desc{ font-size:12.5px; color:var(--color-text-secondary); margin-top:3px; line-height:1.55; }

/* ---------- Pull-quote callout ---------- */
.callout{
  border-left: 3px solid var(--color-accent);
  padding: 14px 18px;
  background: var(--color-accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  color: var(--color-text);
  margin-top: 12px;
  line-height: 1.65;
}
.callout p + p{ margin-top: 8px; }
.callout-source{
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-text-tertiary);
}
.placeholder-field{
  font-style: italic;
  color: var(--color-text-tertiary);
  border-bottom: 1px dashed var(--color-border-strong);
}

/* ---------- Articles / Blog ---------- */
.article-meta{
  display:flex; align-items:center; gap:10px;
  font-size:13px; color:var(--color-text-secondary);
  margin-top:16px; flex-wrap:wrap;
}
.article-meta .dot{ width:3px; height:3px; border-radius:50%; background:var(--color-text-tertiary); flex-shrink:0; }
.article-meta svg{ width:13px; height:13px; }
.article-meta-item{ display:inline-flex; align-items:center; gap:5px; }

.tldr-box{
  margin-top: 24px;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-surface);
}
.tldr-label{
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
}
.tldr-box p{ margin-top: 8px; font-size: 14px; color: var(--color-text-secondary); line-height: 1.65; }

.article-body{ margin-top: 8px; }
.article-body h2{
  font-size: 1.32rem; font-weight: 650; letter-spacing: -0.01em;
  color: var(--color-text);
  margin-top: 44px; margin-bottom: 14px;
}
.article-body h2:first-child{ margin-top: 0; }
.article-body h3{
  font-size: 1.05rem; font-weight: 600; color: var(--color-text);
  margin-top: 28px; margin-bottom: 10px;
}
.article-body p{
  font-size: 15.5px; line-height: 1.8; color: var(--color-text-secondary);
  max-width: 68ch; margin-top: 15px;
}
.article-body strong{ color: var(--color-text); font-weight: 600; }
.article-body ul, .article-body ol{ margin-top: 12px; max-width: 68ch; }
.article-body li{
  position: relative; padding-left: 20px; font-size: 15px;
  color: var(--color-text-secondary); line-height: 1.75; margin-top: 8px;
}
.article-body ul li::before{
  content:""; position:absolute; left:2px; top:11px;
  width:5px; height:5px; border-radius:1px; background: var(--color-text-tertiary);
}
.article-body ol{ counter-reset: art-counter; }
.article-body ol li{ counter-increment: art-counter; padding-left: 26px; }
.article-body ol li::before{
  content: counter(art-counter) ".";
  position: absolute; left: 0; top: 0;
  font-family: var(--font-mono); font-size: 13px; font-weight: 600; color: var(--color-accent);
}

.article-tags{ margin-top: 18px; }

.article-divider{ height:1px; background: var(--color-border); margin: 44px 0 36px; border:none; }

.article-footer-nav{
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  margin-top: 12px;
}
.article-footer-nav a{
  flex: 1 1 240px;
  border:1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 16px 18px; transition: border-color .15s var(--ease);
}
.article-footer-nav a:hover{ border-color: var(--color-border-strong); }
.article-footer-nav .direction{
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing:0.08em; text-transform:uppercase;
  color: var(--color-text-tertiary); display:flex; align-items:center; gap:6px;
}
.article-footer-nav .direction svg{ width:12px; height:12px; }
.article-footer-nav.next .direction{ justify-content:flex-end; }
.article-footer-nav .art-title{ margin-top:6px; font-size:14px; font-weight:600; color:var(--color-text); }
.article-footer-nav.next{ text-align:right; }

.article-card{ display:flex; flex-direction:column; height:100%; }
.article-card .card-body{ flex:1; }

/* ---------- Vault filter tabs ---------- */
.tab-row{ display: flex; gap: 6px; margin-bottom: 20px; flex-wrap: wrap; }
.tab{
  padding: 7px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}
.tab.active{ background: var(--color-text); color: var(--color-bg); border-color: var(--color-text); }
[data-theme="dark"] .tab.active{ background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

/* ---------- Resource list ---------- */
.resource-row{
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.resource-row + .resource-row{ margin-top: 10px; }
.resource-icon{
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  background: var(--color-accent-soft); color: var(--color-accent);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.resource-icon svg{ width: 17px; height: 17px; }
.resource-main{ flex: 1; min-width: 0; }
.resource-title{ font-size: 14px; font-weight: 600; }
.resource-sub{ font-size: 12.5px; color: var(--color-text-tertiary); margin-top: 2px; }

/* ---------- Command palette ---------- */
.palette-overlay{
  position: fixed; inset: 0;
  background: rgba(15,15,18,0.4);
  backdrop-filter: blur(2px);
  z-index: 100;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 16px 16px;
}
.palette-overlay.open{ display: flex; }
.palette{
  width: 100%; max-width: 560px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  animation: paletteIn .16s var(--ease);
}
@keyframes paletteIn{ from{ opacity:0; transform: translateY(-6px) scale(.98);} to{opacity:1; transform:none;} }
.palette-input-row{
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
}
.palette-input-row svg{ width: 16px; height: 16px; color: var(--color-text-tertiary); flex-shrink: 0; }
#palette-input{
  flex: 1; border: none; outline: none; background: none;
  font-size: 14.5px; color: var(--color-text);
}
.palette-esc{
  font-family: var(--font-mono); font-size: 11px; color: var(--color-text-tertiary);
  border: 1px solid var(--color-border); border-radius: 5px; padding: 2px 6px;
}
.palette-results{ max-height: 56vh; overflow-y: auto; padding: 8px; }
.palette-group-label{
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--color-text-tertiary); padding: 10px 10px 4px;
}
.palette-item{
  display: flex; align-items: center; gap: 12px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--color-text);
}
.palette-item svg{ width: 16px; height: 16px; color: var(--color-text-tertiary); flex-shrink: 0; }
.palette-item .pi-sub{ color: var(--color-text-tertiary); font-size: 12px; margin-left: auto; }
.palette-item.active{ background: var(--color-accent-soft); }
.palette-item.active svg{ color: var(--color-accent); }
.palette-empty{ padding: 24px 10px; text-align: center; color: var(--color-text-tertiary); font-size: 13px; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px){
  .sidebar{ transform: translateX(-100%); }
  body.sidebar-open .sidebar{ transform: translateX(0); }
  body.sidebar-open .sidebar-overlay{ display: block; }
  .app-main{ margin-left: 0; }
  .topbar-mobile{ display: flex; }
  .page-content{ padding: 32px 20px 72px; }
}
@media (max-width: 480px){
  .page-content{ padding: 24px 16px 64px; }
}