/* ============================================================
   ECHOES FROM THE MACHINE — Design System
   idvidual.com · Pavel Miska
   ============================================================ */

/* --- TOKENS ------------------------------------------------ */
:root {
  --navy:      #0D1B2A;
  --navy-mid:  #132336;
  --slate:     #3D5A6C;
  --cyan:      #00C2D1;
  --cyan-dim:  #007d87;
  --gold:      #C9A84C;
  --off-white: #E8E4DA;
  --muted:     #8FA0AC;
  --surface:   #111E2D;
  --surface-2: #162840;
  --border:    rgba(0, 194, 209, 0.15);

  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  --font-body: 'Inter', system-ui, sans-serif;

  --text-base: var(--off-white);
  --text-muted: var(--muted);

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  7rem;

  --radius:    4px;
  --radius-lg: 8px;

  --transition: 0.2s ease;
}

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

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

body {
  background: var(--navy);
  color: var(--text-base);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: var(--cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--off-white); }

ul { list-style: none; }

/* --- LAYOUT ------------------------------------------------ */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.container--narrow {
  max-width: 820px;
}

.section {
  padding: var(--space-xl) 0;
}

/* --- TYPOGRAPHY ------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; font-weight: 600; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

.terminal-prompt {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.85em;
  margin-right: 0.4em;
  opacity: 0.7;
}

/* --- HEADER ----------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 27, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-logo {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--off-white);
  letter-spacing: 0.01em;
}
.site-logo:hover { color: var(--off-white); }
.logo-bracket { color: var(--cyan); }
.logo-accent  { color: var(--gold); }

.nav-list {
  display: flex;
  gap: var(--space-md);
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.nav-link:hover,
.nav-item.active .nav-link {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.nav-toggle { display: none; background: none; border: none; cursor: pointer; }
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--off-white);
  margin: 4px 0; transition: var(--transition);
}

/* --- BUTTONS ---------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.65em 1.4em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--cyan);
  color: var(--navy);
  border-color: var(--cyan);
}
.btn-primary:hover {
  background: transparent;
  color: var(--cyan);
}

.btn-ghost {
  background: transparent;
  color: var(--off-white);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn-sm {
  font-size: 0.72rem;
  padding: 0.45em 1em;
}

/* --- TAGS ------------------------------------------------- */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2em 0.7em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  letter-spacing: 0.04em;
}
a.tag:hover { border-color: var(--cyan); color: var(--cyan); }
.tag-list { display: flex; flex-wrap: wrap; gap: 0.4em; }

/* --- SECTION TITLE ---------------------------------------- */
.section-title {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: var(--off-white);
  margin-bottom: var(--space-md);
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.section-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  padding: var(--space-xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 50%, rgba(0,194,209,0.05) 0%, transparent 70%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 39px,
      rgba(0,194,209,0.04) 39px,
      rgba(0,194,209,0.04) 40px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 79px,
      rgba(0,194,209,0.03) 79px,
      rgba(0,194,209,0.03) 80px
    );
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  position: relative;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.hero-name {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  color: var(--off-white);
  margin-bottom: 0.2em;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--cyan);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.hero-intro {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  margin-bottom: var(--space-md);
}

.hero-actions {
  display: flex;
  gap: 1em;
  flex-wrap: wrap;
}

/* STAT GRID */
.hero-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.stat-card {
  background: var(--surface);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.3em;
  transition: background var(--transition);
}
.stat-card:hover { background: var(--surface-2); }

.stat-num {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--off-white);
  line-height: 1;
}
.stat-plus { color: var(--cyan); }
.stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
}

/* ============================================================
   EXPERTISE
   ============================================================ */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.expertise-card {
  background: var(--surface);
  padding: var(--space-md);
  transition: background var(--transition);
}
.expertise-card:hover { background: var(--surface-2); }

.expertise-icon {
  font-size: 1.2rem;
  color: var(--cyan);
  display: block;
  margin-bottom: var(--space-xs);
}

.expertise-card h3 {
  color: var(--off-white);
  margin-bottom: 0.5em;
  font-size: 1rem;
}
.expertise-card p {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
}

/* ============================================================
   PAPERS
   ============================================================ */
.paper-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.paper-card {
  background: var(--surface);
  padding: var(--space-md) calc(var(--space-md) * 1.2);
  transition: background var(--transition);
}
.paper-card:hover { background: var(--surface-2); }

.paper-meta {
  display: flex;
  align-items: center;
  gap: 0.8em;
  margin-bottom: 0.5em;
}

.paper-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.paper-cat {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.15em 0.6em;
  background: rgba(0,194,209,0.1);
  color: var(--cyan);
  border-radius: var(--radius);
  border: 1px solid rgba(0,194,209,0.3);
}

.paper-coauthor {
  font-size: 0.78rem;
  color: var(--muted);
  font-style: italic;
}

.paper-title {
  font-size: 1.1rem;
  margin-bottom: 0.4em;
}
.paper-title a { color: var(--off-white); }
.paper-title a:hover { color: var(--cyan); }

.paper-abstract {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: var(--space-sm);
}

.paper-actions {
  display: flex;
  gap: 0.6em;
  flex-wrap: wrap;
}

.paper-dl {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--gold);
}
.paper-dl:hover { color: var(--off-white); }

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 7rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 5.2rem;
  top: 0.4rem;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
}

.tl-item {
  position: relative;
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.tl-item::before {
  content: '';
  position: absolute;
  left: -1.8rem;
  top: 0.55rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.tl-year {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
  position: absolute;
  left: -6.5rem;
  top: 0.3rem;
  width: 4.5rem;
  text-align: right;
}

.tl-body {
  display: flex;
  flex-direction: column;
  gap: 0.1em;
}
.tl-body strong { color: var(--off-white); font-size: 0.95rem; }

.tl-role {
  font-size: 0.82rem;
  color: var(--muted);
}
.tl-tech {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--slate);
  letter-spacing: 0.03em;
}

.tl-more {
  padding-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  padding: var(--space-lg) 0 var(--space-md);
  border-bottom: 1px solid var(--border);
}

.page-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.6em;
}

.page-title {
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--off-white);
  margin-bottom: 0.3em;
}

.page-subtitle {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--muted);
}

/* ============================================================
   PROJECTS GRID
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.project-card {
  background: var(--surface);
  padding: var(--space-md);
  transition: background var(--transition);
}
.project-card:hover { background: var(--surface-2); }
.project-title { font-size: 1rem; margin-bottom: 0.4em; }
.project-title a { color: var(--off-white); }
.project-title a:hover { color: var(--cyan); }

.project-meta {
  display: flex; align-items: center; gap: 0.6em;
  margin-bottom: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}

.project-status {
  padding: 0.1em 0.5em;
  border-radius: var(--radius);
  border: 1px solid;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.status--active   { color: var(--cyan); border-color: var(--cyan); }
.status--archived { color: var(--muted); border-color: var(--muted); }
.status--wip      { color: var(--gold); border-color: var(--gold); }

/* ============================================================
   SINGLE ARTICLE
   ============================================================ */
.single-header {
  padding: var(--space-lg) 0 var(--space-md);
  border-bottom: 1px solid var(--border);
}

.single-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: var(--space-sm);
}
.crumb-sep { margin: 0 0.4em; color: var(--border); }

.single-title {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  color: var(--off-white);
  margin-bottom: 0.4em;
}

.single-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 0.6em;
  flex-wrap: wrap;
}

.abstract {
  border-left: 2px solid var(--cyan);
  padding: var(--space-sm) var(--space-md);
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: var(--space-sm) 0;
}
.abstract-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.4em;
}

.single-actions {
  display: flex; gap: 0.8em; flex-wrap: wrap;
  margin-top: var(--space-sm);
}

.single-body {
  padding: var(--space-lg) 0;
}

.single-body h2, .single-body h3 {
  color: var(--off-white);
  margin: 1.8em 0 0.6em;
}
.single-body h2 { font-size: 1.4rem; }
.single-body h3 { font-size: 1.1rem; }
.single-body p  { color: var(--muted); font-size: 1rem; }
.single-body ul, .single-body ol {
  color: var(--muted);
  padding-left: 1.4em;
  list-style: disc;
  margin-bottom: 1em;
}
.single-body code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--surface-2);
  padding: 0.15em 0.4em;
  border-radius: var(--radius);
  color: var(--cyan);
}
.single-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  overflow-x: auto;
  margin-bottom: var(--space-sm);
}
.single-body pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
}
.single-body blockquote {
  border-left: 2px solid var(--gold);
  padding: 0.6em var(--space-md);
  color: var(--muted);
  font-style: italic;
  margin: var(--space-sm) 0;
}

.single-footer {
  padding-bottom: var(--space-lg);
}

/* ============================================================
   CV PAGE
   ============================================================ */
.cv-section { padding-top: 0; }
.cv-section .container--narrow { padding-top: var(--space-lg); }

.cv-section-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cyan);
  font-family: var(--font-mono);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.6em;
  margin-bottom: var(--space-md);
  margin-top: var(--space-lg);
}

.cv-profile p { font-size: 1rem; color: var(--muted); line-height: 1.8; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-md);
}
.skill-group h3 {
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.5em;
  font-weight: 400;
}

.job-entry {
  border-left: 1px solid var(--border);
  padding: var(--space-sm) 0 var(--space-sm) var(--space-md);
  margin-bottom: var(--space-sm);
  transition: border-color var(--transition);
}
.job-entry:hover { border-color: var(--cyan); }

.job-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: 0.3em;
}
.job-company {
  font-size: 1rem;
  color: var(--off-white);
  font-family: var(--font-mono);
  font-weight: 600;
}
.job-role { font-size: 0.88rem; color: var(--muted); }
.job-domain { font-size: 0.8rem; color: var(--slate); font-style: italic; margin-top: 0.1em; }
.job-period {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
  white-space: nowrap;
  padding-top: 0.2em;
}
.job-tech { font-size: 0.78rem; color: var(--slate); margin: 0.4em 0; font-family: var(--font-mono); }
.job-bullets {
  list-style: none;
  margin-top: 0.4em;
  display: flex;
  flex-direction: column;
  gap: 0.2em;
}
.job-bullets li {
  font-size: 0.85rem;
  color: var(--muted);
  padding-left: 1em;
  position: relative;
}
.job-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-size: 0.7em;
  top: 0.15em;
}

.edu-entry {
  font-size: 0.9rem;
  color: var(--muted);
  padding: 0.4em 0;
  border-bottom: 1px solid var(--border);
}

.lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.4em;
}
.lang-entry {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 0.4em 0.6em;
  background: var(--surface);
  border-radius: var(--radius);
}
.lang-name { color: var(--off-white); }
.lang-level { color: var(--muted); font-family: var(--font-mono); font-size: 0.75rem; }

.pub-entry {
  padding: var(--space-sm) var(--space-md);
  border-left: 2px solid var(--gold);
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.pub-title { font-family: var(--font-mono); font-size: 1rem; color: var(--off-white); margin-bottom: 0.2em; }
.pub-sub   { font-size: 0.88rem; color: var(--muted); font-style: italic; margin-bottom: 0.2em; }
.pub-authors { font-size: 0.8rem; color: var(--slate); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: var(--space-md) 0 var(--space-sm);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.footer-name  { font-family: var(--font-mono); font-size: 0.9rem; color: var(--off-white); margin-bottom: 0.2em; }
.footer-role  { font-size: 0.8rem; color: var(--muted); }
.footer-label { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 0.3em; }

.footer-links { display: flex; flex-direction: column; gap: 0.3em; }
.footer-links a { font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); }
.footer-links a:hover { color: var(--cyan); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--slate);
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
  padding: var(--space-lg);
  text-align: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-stat-grid { margin-top: var(--space-md); }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: var(--space-lg) 0; }

  .nav-toggle { display: flex; flex-direction: column; justify-content: center; }
  .nav-list {
    display: none;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: var(--navy-mid);
    flex-direction: column;
    padding: var(--space-sm);
    border-bottom: 1px solid var(--border);
    gap: 0;
  }
  .nav-list.open { display: flex; }
  .nav-link { padding: 0.7em 0; }
  .site-header { position: relative; }
  .site-header .container { position: relative; }

  .timeline { padding-left: 5.5rem; }
  .tl-year { left: -5rem; width: 3.8rem; font-size: 0.65rem; }
  .timeline::before { left: 4rem; }
  .tl-item::before { left: -1.5rem; }

  .skills-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.2em; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ============================================================
   CORE TECHNOLOGIES SECTION
   ============================================================ */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.tech-group {
  background: var(--surface);
  padding: var(--space-md);
  transition: background var(--transition);
}
.tech-group:hover { background: var(--surface-2); }

.tech-group-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cyan);
  font-weight: 400;
  margin-bottom: 0.8em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--border);
}

.tech-items {
  display: flex;
  flex-direction: column;
  gap: 0.35em;
}

.tech-item {
  font-size: 0.85rem;
  color: var(--off-white);
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.tech-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.tech-dot--primary   { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.tech-dot--secondary { background: var(--slate); }
.tech-dot--gold      { background: var(--gold); box-shadow: 0 0 6px rgba(201,168,76,0.5); }
.tech-dot--muted     { background: var(--navy-mid); border: 1px solid var(--slate); }

.tech-legend {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  align-items: center;
  padding-top: 0.4em;
}
.tech-legend span {
  display: flex;
  align-items: center;
  gap: 0.4em;
}

/* Education item in timeline */
.tl-item--edu .tl-body strong {
  color: var(--muted);
}
.tl-item--edu::before {
  background: var(--slate) !important;
  box-shadow: none !important;
}

@media (max-width: 768px) {
  .tech-grid { grid-template-columns: 1fr; }
  .tech-legend { gap: var(--space-sm); }
}

/* ============================================================
   STACK PAGE
   ============================================================ */

.page-desc {
  font-size: 1rem;
  color: var(--muted);
  max-width: 680px;
  margin-top: 0.5em;
  line-height: 1.8;
}

/* Section titles within stack page */
.stack-section-title {
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  color: var(--off-white);
  margin-bottom: 0.5em;
}

.stack-section-intro {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 700px;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.stack-section--dark {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ── BUSINESS DOMAIN CARDS ─────────────────────── */
.domain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.domain-card {
  background: var(--surface);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.7em;
  transition: background var(--transition);
}
.domain-card:hover { background: var(--surface-2); }

.domain-card--highlight { background: var(--surface-2); }
.domain-card--highlight:hover { background: #1a2e42; }

.domain-card--secondary { opacity: 0.85; }

.domain-header {
  display: flex;
  align-items: flex-start;
  gap: 0.8em;
}

.domain-icon {
  font-size: 1.3rem;
  color: var(--cyan);
  line-height: 1;
  margin-top: 0.1em;
  flex-shrink: 0;
}
.domain-card--secondary .domain-icon { color: var(--slate); }

.domain-title {
  font-size: 1rem;
  color: var(--off-white);
  margin-bottom: 0.15em;
  font-family: var(--font-mono);
  font-weight: 600;
}

.domain-depth {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.15em 0.55em;
  border-radius: var(--radius);
  border: 1px solid;
}
.domain-depth--expert   { color: var(--cyan); border-color: var(--cyan); background: rgba(0,194,209,0.08); }
.domain-depth--advanced { color: var(--gold); border-color: var(--gold); background: rgba(201,168,76,0.08); }
.domain-depth--proficient { color: var(--muted); border-color: var(--slate); }

.domain-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.domain-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35em;
}

.domain-topic {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.18em 0.6em;
  background: rgba(0,194,209,0.06);
  border: 1px solid rgba(0,194,209,0.18);
  border-radius: var(--radius);
  color: var(--off-white);
  letter-spacing: 0.02em;
}
.domain-card--secondary .domain-topic {
  background: rgba(61,90,108,0.2);
  border-color: rgba(61,90,108,0.4);
  color: var(--muted);
}

.domain-employers {
  font-size: 0.75rem;
  color: var(--slate);
  font-family: var(--font-mono);
  border-top: 1px solid var(--border);
  padding-top: 0.5em;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.2em;
}
.domain-employers-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* DEPTH LEGEND */
.depth-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.78rem;
  color: var(--muted);
  padding: 0.6em 0;
  border-top: 1px solid var(--border);
}
.depth-legend-item {
  display: flex;
  align-items: center;
  gap: 0.5em;
}

/* ── TECH STACK ITEMS ──────────────────────────── */
.techstack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.techstack-group {
  background: var(--navy);
  padding: var(--space-md);
  transition: background var(--transition);
}
.techstack-group:hover { background: var(--surface); }

.techstack-group-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cyan);
  font-weight: 400;
  margin-bottom: 1em;
  padding-bottom: 0.5em;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5em;
}
.techstack-group-icon {
  font-size: 0.9rem;
  opacity: 0.7;
}

.techstack-items {
  display: flex;
  flex-direction: column;
  gap: 0.55em;
}

/* TSI = Tech Stack Item */
.tsi {
  display: flex;
  align-items: flex-start;
  gap: 0.6em;
}

.tsi-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.35em;
}
.tsi-dot--primary   { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.tsi-dot--secondary { background: var(--slate); }
.tsi-dot--gold      { background: var(--gold); box-shadow: 0 0 5px rgba(201,168,76,0.5); }
.tsi-dot--muted     { background: transparent; border: 1px solid var(--slate); }

.tsi-body {
  display: flex;
  flex-direction: column;
  gap: 0.05em;
}

.tsi-name {
  font-size: 0.88rem;
  color: var(--off-white);
  font-weight: 500;
  line-height: 1.3;
}
.tsi--muted .tsi-name { color: var(--muted); }

.tsi-note {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--slate);
  letter-spacing: 0.02em;
}

/* STACK LEGEND */
.stack-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  align-items: center;
  padding: 0.6em 0;
  border-top: 1px solid var(--border);
}
.stack-legend span {
  display: flex;
  align-items: center;
  gap: 0.4em;
}

/* ── DOMAIN × TECH MATRIX ─────────────────────── */
.matrix-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-sm);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  min-width: 700px;
}

.matrix-table thead tr {
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.matrix-table thead th {
  padding: 0.7em 0.6em;
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.65rem;
  text-align: center;
  white-space: nowrap;
}
.matrix-table thead th.matrix-domain-col {
  text-align: left;
  min-width: 180px;
  padding-left: 1em;
}

.matrix-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.matrix-table tbody tr:last-child { border-bottom: none; }
.matrix-table tbody tr:hover { background: var(--surface); }

.matrix-domain {
  padding: 0.65em 0.6em 0.65em 1em;
  color: var(--off-white);
  font-size: 0.78rem;
  white-space: nowrap;
}

.matrix-cell {
  text-align: center;
  padding: 0.65em 0.4em;
  font-size: 0.85rem;
}
.matrix-cell--yes     { color: var(--cyan); }
.matrix-cell--partial { color: var(--gold); }
.matrix-cell--no      { color: var(--border); }

.matrix-legend {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0.4em 0;
  letter-spacing: 0.03em;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .domain-grid    { grid-template-columns: 1fr; }
  .techstack-grid { grid-template-columns: 1fr; }
  .depth-legend   { flex-direction: column; gap: 0.5em; }
  .stack-legend   { gap: var(--space-sm); }
}

/* ── EXPERTISE CARD TAGS ───────────────────────── */
.expertise-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3em;
  margin-top: 0.7em;
}

.etag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.15em 0.55em;
  background: rgba(0, 194, 209, 0.07);
  border: 1px solid rgba(0, 194, 209, 0.2);
  border-radius: var(--radius);
  color: var(--cyan);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.expertise-card p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.expertise-card h3 {
  color: var(--off-white);
  margin-bottom: 0.4em;
  font-size: 0.95rem;
}