/* ==========================================================================
   Design System Tokens & Modern Color Scheme Architecture
   Chemkhi Hassen — Kotlin, KMP & Ktor Developer | Creator of RockLyzor
   ========================================================================== */

:root {
  /* Raw Light / Dark Palette Primitives */
  --raw-bg-canvas-light: #f8fafc;
  --raw-bg-canvas-dark: #070b12;

  --raw-bg-surface-light: #ffffff;
  --raw-bg-surface-dark: #0f1623;

  --raw-bg-elevated-light: #f1f5f9;
  --raw-bg-elevated-dark: #162032;

  --raw-bg-glass-light: rgba(255, 255, 255, 0.86);
  --raw-bg-glass-dark: rgba(15, 22, 35, 0.84);

  --raw-text-primary-light: #0f172a;
  --raw-text-primary-dark: #f8fafc;

  --raw-text-secondary-light: #334155;
  --raw-text-secondary-dark: #cbd5e1;

  --raw-text-muted-light: #475569;
  --raw-text-muted-dark: #94a3b8;

  --raw-accent-primary-light: #0369a1;
  --raw-accent-primary-dark: #38bdf8;

  --raw-accent-primary-Contrast-light: #ffffff;
  --raw-accent-primary-Contrast-dark: #07111e;

  --raw-accent-emerald-light: #15803d;
  --raw-accent-emerald-dark: #22c55e;

  --raw-accent-amber-light: #b45309;
  --raw-accent-amber-dark: #f59e0b;

  --raw-border-subtle-light: #e2e8f0;
  --raw-border-subtle-dark: #1e293b;

  --raw-border-strong-light: #cbd5e1;
  --raw-border-strong-dark: #334155;

  /* Semantic Adaptive Tokens via light-dark() */
  --bg-canvas: light-dark(var(--raw-bg-canvas-light), var(--raw-bg-canvas-dark));
  --bg-surface: light-dark(var(--raw-bg-surface-light), var(--raw-bg-surface-dark));
  --bg-elevated: light-dark(var(--raw-bg-elevated-light), var(--raw-bg-elevated-dark));
  --bg-glass: light-dark(var(--raw-bg-glass-light), var(--raw-bg-glass-dark));

  --text-primary: light-dark(var(--raw-text-primary-light), var(--raw-text-primary-dark));
  --text-secondary: light-dark(var(--raw-text-secondary-light), var(--raw-text-secondary-dark));
  --text-muted: light-dark(var(--raw-text-muted-light), var(--raw-text-muted-dark));

  --accent-primary: light-dark(var(--raw-accent-primary-light), var(--raw-accent-primary-dark));
  --accent-on-primary: light-dark(var(--raw-accent-primary-Contrast-light), var(--raw-accent-primary-Contrast-dark));
  --accent-emerald: light-dark(var(--raw-accent-emerald-light), var(--raw-accent-emerald-dark));
  --accent-amber: light-dark(var(--raw-accent-amber-light), var(--raw-accent-amber-dark));

  --accent-soft-bg: light-dark(rgba(3, 105, 161, 0.08), rgba(56, 189, 248, 0.12));
  --emerald-soft-bg: light-dark(rgba(21, 128, 61, 0.1), rgba(34, 197, 94, 0.14));
  --amber-soft-bg: light-dark(rgba(180, 83, 9, 0.1), rgba(245, 158, 11, 0.14));

  --border-subtle: light-dark(var(--raw-border-subtle-light), var(--raw-border-subtle-dark));
  --border-strong: light-dark(var(--raw-border-strong-light), var(--raw-border-strong-dark));

  --shadow-card: light-dark(
    0 10px 30px -10px rgba(15, 23, 42, 0.07),
    0 16px 36px -12px rgba(0, 0, 0, 0.55)
  );

  --scrollbar-thumb: light-dark(#94a3b8, #334155);
  --scrollbar-track: light-dark(#f1f5f9, #0b111d);

  /* Typography & Layout Tokens */
  --font-display: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  --header-height: 4.5rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --transition-fast: 160ms cubic-bezier(0.22, 1, 0.36, 1);

  /* MANDATORY: Viewport-wide native UI adaptation & meta override sync */
  color-scheme: light dark;
  --color-scheme: light;
  accent-color: var(--accent-primary);
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);

  @media (prefers-color-scheme: dark) {
    --color-scheme: dark;
  }

  &:has(> head > meta[name="color-scheme"][content="dark"]) {
    color-scheme: dark;
    --color-scheme: dark;
  }

  &:has(> head > meta[name="color-scheme"][content="light"]) {
    color-scheme: light;
    --color-scheme: light;
  }
}

/* Legacy fallback for WebKit/Blink browsers without scrollbar-color */
@supports not (scrollbar-color: auto) {
  ::-webkit-scrollbar {
    width: 10px;
    height: 10px;
  }
  ::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 5px;
  }
  ::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
  }
}

/* Theme-branching utility classes using container style queries + fallback */
.if-dark {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not(:has(> head > meta[name="color-scheme"][content="light"])) .if-dark {
    display: inline-flex;
  }
  :root:not(:has(> head > meta[name="color-scheme"][content="light"])) .if-light {
    display: none;
  }
}

:root:has(> head > meta[name="color-scheme"][content="dark"]) .if-dark {
  display: inline-flex;
}

:root:has(> head > meta[name="color-scheme"][content="dark"]) .if-light {
  display: none;
}

@container not style(--color-scheme: dark) {
  .if-dark {
    display: none !important;
  }
}

@container not style(--color-scheme: light) {
  .if-light {
    display: none !important;
  }
}

/* ==========================================================================
   Base Reset, Accessibility & Typography
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  /* Prevent sticky header from obscuring keyboard focus (WCAG 2.2 AA 2.4.11) */
  scroll-padding-top: calc(var(--header-height) + 1.5rem);
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.625;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100vh;
  background-color: var(--bg-canvas);
  background-image:
    radial-gradient(circle at 15% 10%, var(--accent-soft-bg), transparent 38%),
    radial-gradient(circle at 85% 22%, var(--emerald-soft-bg), transparent 34%),
    linear-gradient(to right, light-dark(rgba(15, 23, 42, 0.03), rgba(148, 163, 184, 0.03)) 1px, transparent 1px),
    linear-gradient(to bottom, light-dark(rgba(15, 23, 42, 0.03), rgba(148, 163, 184, 0.03)) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
  overflow-x: hidden;
}

/* High-visibility keyboard focus indicator (WCAG 2.2 Focus Appearance) */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 1rem;
  z-index: 200;
  padding: 0.625rem 1rem;
  background: var(--accent-primary);
  color: var(--accent-on-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}

/* Headings with balanced line wrapping */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: 1.18;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p {
  max-inline-size: 68ch;
  color: var(--text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a,
[role="button"] {
  cursor: pointer;
}

/* ==========================================================================
   Layout Container & Sticky Navigation Header
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: 1rem;
}

@media (min-width: 640px) {
  .container {
    padding-inline: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: 2rem;
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background: var(--accent-soft-bg);
  border: 1px solid var(--border-strong);
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  flex-shrink: 0;
}

.brand-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-company-link {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.brand-company-link:hover {
  color: var(--text-primary);
}

.primary-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

@media (min-width: 860px) {
  .primary-nav {
    display: flex;
  }
}

.nav-link {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-elevated);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--accent-primary);
  background: var(--bg-elevated);
}

/* ==========================================================================
   Buttons & Compact Labels / Pills
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.925rem;
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn svg {
  flex-shrink: 0;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--accent-on-primary);
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--accent-primary);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.825rem;
}

/* Resilient Chip / Badge Collection Layout (UI/UX Pro Max Compact Label Rule) */
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  max-width: 100%;
  padding: 0.3rem 0.7rem;
  border-radius: 9999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.775rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.chip-label {
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chip-accent {
  background: var(--accent-soft-bg);
  border-color: light-dark(rgba(3, 105, 161, 0.28), rgba(56, 189, 248, 0.3));
  color: var(--accent-primary);
}

.chip-emerald {
  background: var(--emerald-soft-bg);
  border-color: light-dark(rgba(21, 128, 61, 0.28), rgba(34, 197, 94, 0.3));
  color: var(--accent-emerald);
}

.chip-amber {
  background: var(--amber-soft-bg);
  border-color: light-dark(rgba(180, 83, 9, 0.28), rgba(245, 158, 11, 0.3));
  color: var(--accent-amber);
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  flex-shrink: 0;
}

/* ==========================================================================
   Hero Section & Portrait Card
   ========================================================================== */

.hero-section {
  padding-block: 3.5rem 4rem;
}

@media (min-width: 1024px) {
  .hero-section {
    padding-block: 5rem 5.5rem;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.35fr 0.85fr;
    gap: 3.5rem;
  }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 1.25rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.hero-title {
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 700;
  max-inline-size: 18ch;
  margin-bottom: 1.25rem;
}

.hero-title-highlight {
  color: var(--accent-primary);
}

.hero-lead {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-inline-size: 62ch;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 2rem;
  margin-bottom: 2.25rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.875rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Portrait & Telemetry Card */
.portrait-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
}

.portrait-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.875rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.portrait-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.portrait-footer {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.625rem;
}

.telemetry-mini {
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.telemetry-mini-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.telemetry-mini-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ==========================================================================
   Section Scaffolding
   ========================================================================== */

.section {
  padding-block: 4.5rem;
  border-top: 1px solid var(--border-subtle);
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 2.75rem;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  max-inline-size: 26ch;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-inline-size: 68ch;
}

/* ==========================================================================
   Featured Project: RockLyzor SCADA & Energy Intelligence Showcase
   ========================================================================== */

.rocklyzor-shell {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.rocklyzor-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.5rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.rocklyzor-title-group {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  flex-wrap: wrap;
}

.rocklyzor-badge {
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--emerald-soft-bg);
  border: 1px solid var(--accent-emerald);
  color: var(--accent-emerald);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}

.rocklyzor-kpi-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

@media (min-width: 768px) {
  .rocklyzor-kpi-strip {
    grid-template-columns: repeat(5, 1fr);
  }
}

.rocklyzor-kpi-cell {
  background: var(--bg-surface);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.rocklyzor-kpi-val {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.rocklyzor-kpi-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.rocklyzor-body {
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .rocklyzor-body {
    padding: 2.25rem;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2.5rem;
  }
}

/* RockLyzor 6 Platform Modules Grid */
.capability-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-block: 1.5rem;
}

@media (min-width: 640px) {
  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .capability-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.capability-card {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: border-color var(--transition-fast);
}

.capability-card:hover {
  border-color: var(--accent-primary);
}

.capability-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.capability-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.capability-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.capability-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Interactive SCADA Architecture Explorer Panel */
.scada-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.scada-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

@media (min-width: 520px) {
  .scada-tabs {
    grid-template-columns: repeat(4, 1fr);
  }
}

.scada-tab {
  padding: 0.55rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.scada-tab[aria-selected="true"] {
  background: var(--accent-soft-bg);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.scada-stage {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  min-height: 230px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
}

.scada-stage-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.scada-stage-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.scada-telemetry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.625rem;
}

.scada-node {
  padding: 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.scada-node-key {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.scada-node-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-primary);
}

/* ==========================================================================
   RockLyzor Field Deployments & Case Studies Grid
   ========================================================================== */

.deployments-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .deployments-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.deployment-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
  transition: border-color var(--transition-fast);
}

.deployment-card:hover {
  border-color: var(--accent-primary);
}

.deployment-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.deployment-sector {
  color: var(--accent-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.deployment-location {
  color: var(--text-muted);
}

.deployment-telemetry-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.deployment-stat-val {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.deployment-stat-lbl {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ==========================================================================
   Technical Skills Bento Grid (5 Core Domains)
   ========================================================================== */

.bento-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .bento-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .bento-span-3 {
    grid-column: span 3;
  }
  .bento-span-2 {
    grid-column: span 2;
  }
}

.bento-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
  transition: border-color var(--transition-fast);
}

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

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

.bento-icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-sm);
  background: var(--accent-soft-bg);
  border: 1px solid var(--border-strong);
  color: var(--accent-primary);
  flex-shrink: 0;
}

.bento-domain-code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.bento-title {
  font-size: 1.25rem;
  margin-top: 0.75rem;
  margin-bottom: 0.5rem;
}

.bento-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.bento-list li {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.bento-list li::before {
  content: "▹";
  font-family: var(--font-mono);
  color: var(--accent-primary);
  flex-shrink: 0;
}

/* ==========================================================================
   Additional Engineering Experience & Core Competencies
   ========================================================================== */

.experience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .experience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.experience-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.competencies-band {
  margin-top: 2.5rem;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

.competencies-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* ==========================================================================
   Contact Section & Footer
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 860px) {
  .contact-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.contact-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.contact-item-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.contact-item-value {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-all;
}

.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* ==========================================================================
   Modal Dialog (Light-Dismiss Native <dialog closedby="any">)
   ========================================================================== */

.cv-dialog {
  margin: auto;
  width: min(92vw, 780px);
  max-height: 86vh;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 0;
  overflow: hidden;
}

.cv-dialog[open] {
  display: flex;
  flex-direction: column;
}

.cv-dialog::backdrop {
  background-color: rgba(7, 11, 18, 0.68);
  backdrop-filter: blur(4px);
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.dialog-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.dialog-section {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.dialog-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.dialog-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
}

@media print {
  .site-header,
  .hero-cta-row,
  .scada-tabs,
  .site-footer,
  .cv-dialog {
    display: none !important;
  }
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
}