/* ==========================================================================
   METASPACE PORTFOLIO - SCIENTIFIC DEEP-TECH DESIGN SYSTEM
   Author: Szőke László-Ferenc
   Aesthetics: Minimalist, Mathematical Precision, Bio-Causal Dark Theme
   ========================================================================== */

:root {
  --bg-dark: #07080b;
  --bg-surface: #0d0f15;
  --bg-card: #12151e;
  --bg-card-hover: #181d2a;
  --bg-highlight: rgba(0, 229, 255, 0.04);
  
  --border-subtle: #1e2433;
  --border-focus: #00e5ff;
  --border-accent: rgba(0, 242, 157, 0.25);
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --color-cyan: #00e5ff;
  --color-emerald: #00f29d;
  --color-amber: #ffb300;
  --color-crimson: #ff3366;
  --color-purple: #9d4edd;
  
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  
  --glow-cyan: 0 0 25px rgba(0, 229, 255, 0.15);
  --glow-emerald: 0 0 25px rgba(0, 242, 157, 0.15);
  --glow-crimson: 0 0 25px rgba(255, 51, 102, 0.2);
  
  --transition-fast: 0.15s ease;
  --transition-smooth: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-main);
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 229, 255, 0.05) 0%, transparent 60%),
    radial-gradient(circle at 100% 40%, rgba(0, 242, 157, 0.03) 0%, transparent 50%),
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  -webkit-font-smoothing: antialiased;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.2;
}

.mono {
  font-family: var(--font-mono);
}

a {
  color: var(--color-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #fff;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Section Spacing */
.section-block {
  padding: 5rem 0;
  position: relative;
}

.section-block::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 5%;
  right: 5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

/* Header & Navigation */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 8, 11, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo-hex {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(0, 242, 157, 0.1));
  border: 1px solid var(--color-cyan);
  border-radius: var(--radius-sm);
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-weight: bold;
  font-size: 0.9rem;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-status-line {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-emerald);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-emerald);
  box-shadow: 0 0 8px var(--color-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-item a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-item a:hover {
  color: var(--color-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background: var(--color-cyan);
  color: #000;
  font-weight: 800;
}

.btn-terminal {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--color-cyan);
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.btn-terminal:hover {
  background: var(--color-cyan);
  color: #000;
  border-color: var(--color-cyan);
  box-shadow: var(--glow-cyan);
}

/* Hero Section */
.hero-section {
  padding: 5rem 0 3.5rem 0;
  position: relative;
}

.hero-telemetry-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.05);
  border: 1px solid rgba(0, 229, 255, 0.2);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  max-width: 100%;
}

/* Látogatásszámláló (nyitórész + lábléc) */
.view-counter { white-space: nowrap; }
.view-counter[hidden] { display: none; }

.hero-name {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-cyan);
  margin-bottom: 1.25rem;
  font-family: var(--font-sans);
}

.hero-bio {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 840px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--color-cyan);
  color: #000;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.btn-primary:hover {
  background: #ffffff;
  color: #000;
  box-shadow: var(--glow-cyan);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-card);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  transform: translateY(-1px);
}

/* Metric Tickers */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--color-cyan);
  opacity: 0.4;
  transition: opacity var(--transition-fast);
}

.metric-card:hover {
  border-color: rgba(0, 229, 255, 0.4);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--glow-cyan);
}

.metric-card:hover::before {
  opacity: 1;
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.metric-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.metric-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-emerald);
}

/* Thesis Section */
.section-header {
  margin-bottom: 2.75rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 760px;
}

.thesis-quote-card {
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.03), rgba(0, 242, 157, 0.02));
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--color-cyan);
  border-radius: var(--radius-md);
  padding: 1.75rem 2rem;
  margin-bottom: 2.5rem;
}

.thesis-quote {
  font-size: 1.15rem;
  font-style: italic;
  color: #ffffff;
  line-height: 1.7;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
  position: relative;
}

.pillar-card:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan);
}

.pillar-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.08);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  align-self: flex-start;
  margin-bottom: 1rem;
}

.pillar-question {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--color-emerald);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.pillar-name {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.pillar-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Interactive Causal Simulator Widget */
.simulator-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 1rem;
}

.simulator-header {
  background: #07080b;
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sim-window-controls {
  display: flex;
  gap: 6px;
}

.sim-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #2a2e3d;
}

.sim-dot.red { background: #ff5f56; }
.sim-dot.yellow { background: #ffbd2e; }
.sim-dot.green { background: #27c93f; }

.sim-window-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.simulator-body {
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .simulator-body {
    grid-template-columns: 1fr;
  }
}

.sim-control-pane {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sim-select-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.sim-scenarios-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.scenario-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  text-align: left;
  cursor: pointer;
  color: var(--text-main);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.scenario-btn:hover {
  border-color: var(--color-cyan);
  background: var(--bg-card-hover);
}

.scenario-btn.active {
  border-color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.08);
}

.scenario-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.scenario-type-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
  text-transform: uppercase;
}

.scenario-type-badge.malicious {
  background: rgba(255, 51, 102, 0.15);
  color: var(--color-crimson);
  border: 1px solid rgba(255, 51, 102, 0.3);
}

.scenario-type-badge.valid {
  background: rgba(0, 242, 157, 0.15);
  color: var(--color-emerald);
  border: 1px solid rgba(0, 242, 157, 0.3);
}

.sim-terminal-pane {
  background: #050608;
  border: 1px solid #1a1e2b;
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  min-height: 260px;
}

.term-row {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.term-lbl {
  color: var(--text-dim);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.term-val {
  color: #fff;
  word-break: break-all;
}

.term-val.code {
  background: #0f121a;
  padding: 0.4rem 0.6rem;
  border-radius: 3px;
  border-left: 2px solid var(--border-subtle);
  color: #cbd5e1;
}

.term-val.proof-unsat {
  color: var(--color-crimson);
  font-weight: 700;
}

.term-val.proof-sat {
  color: var(--color-emerald);
  font-weight: 700;
}

.term-val.verdict-blocked {
  color: #fff;
  background: rgba(255, 51, 102, 0.2);
  border: 1px solid var(--color-crimson);
  padding: 0.4rem 0.6rem;
  border-radius: 3px;
  font-weight: 700;
}

.term-val.verdict-authorized {
  color: #fff;
  background: rgba(0, 242, 157, 0.15);
  border: 1px solid var(--color-emerald);
  padding: 0.4rem 0.6rem;
  border-radius: 3px;
  font-weight: 700;
}

/* Projects Explorer & Filter Navigation */
.filter-wrapper {
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cat-tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.cat-tab-btn:hover {
  color: #fff;
  border-color: var(--color-cyan);
  background: var(--bg-card-hover);
}

.cat-tab-btn.active {
  background: var(--color-cyan);
  color: #000;
  border-color: var(--color-cyan);
  font-weight: 700;
}

.filter-secondary-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.search-box-wrapper {
  position: relative;
  min-width: 280px;
  flex: 1;
  max-width: 420px;
}

.search-input {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem 0.6rem 2.25rem;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
}

.tech-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tech-filter-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tech-filter-pill:hover, .tech-filter-pill.active {
  color: var(--color-cyan);
  border-color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.05);
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.5rem;
}

@media (max-width: 640px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.project-card:hover {
  border-color: rgba(0, 229, 255, 0.35);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), var(--glow-cyan);
}

.project-card:hover::before {
  opacity: 1;
}

.card-top {
  margin-bottom: 1.25rem;
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.badge-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 229, 255, 0.08);
  color: var(--color-cyan);
  border: 1px solid rgba(0, 229, 255, 0.2);
}

.pillar-micro-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
}

.project-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.project-card-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.card-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid #161a25;
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  margin-bottom: 1.25rem;
}

.stat-cell {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.stat-k {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.stat-v {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

@media (max-width: 420px) {
  .card-stats-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.card-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
}

.card-tech-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
  color: var(--text-muted);
}

.card-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

.btn-card-details {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-cyan);
  background: transparent;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: transform var(--transition-fast);
}

.btn-card-details:hover {
  transform: translateX(3px);
  color: #fff;
}

.card-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-icon-link {
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.card-icon-link:hover {
  color: var(--color-cyan);
}

/* Modal / Deep-Dive Drawer */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(3, 4, 6, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-focus);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), var(--glow-cyan);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-smooth);
}

.modal-backdrop.active .modal-container {
  transform: translateY(0);
}

.modal-header {
  padding: 1.75rem 2rem;
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  background: var(--bg-surface);
  z-index: 10;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.modal-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.modal-badge-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-title {
  font-size: 1.5rem;
}

.btn-modal-close {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-modal-close:hover {
  color: #fff;
  border-color: var(--color-cyan);
  background: var(--bg-card-hover);
}

.modal-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.modal-section-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.modal-text {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.modal-arch-box {
  background: #050608;
  border: 1px solid #1a1e2b;
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #cbd5e1;
  line-height: 1.6;
}

.modal-links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

/* About & Track Record */
.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  padding-left: 2rem;
}

.timeline-list::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
  background: var(--border-subtle);
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-dark);
  border: 2px solid var(--color-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-cyan);
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Footer */
.footer-block {
  padding: 4rem 0 2.5rem 0;
  background: #040507;
  border-top: 1px solid var(--border-subtle);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.footer-brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  max-width: 420px;
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links-list a {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-links-list a:hover {
  color: var(--color-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid #141722;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* Utility Animations */
.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Mobil fejléc: a menüpontok és a kihívás-gomb ne tolják szét az oldalt */
@media (max-width: 900px) {
  .header-nav nav {
    display: none;
  }
}

@media (max-width: 520px) {
  .header-nav .btn-terminal,
  .brand-status-line {
    display: none;
  }
}

/* Arclogó a fejlécben (a szokelaci.metaspace.bio jelénél nagyobb) */
.brand-logo-face {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 10px;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.brand-wrapper:hover .brand-logo-face {
  transform: scale(1.05);
}

@media (max-width: 520px) {
  .brand-logo-face {
    width: 44px;
    height: 44px;
  }
}