/* ==========================================================================
   JOHN A. OJABO - SENIOR DEVOPS & MULTI-CLOUD ENGINEER
   Theme System: Dark Editorial Minimalist (Obsidian, Titanium & Champagne)
   ========================================================================== */

:root {
  /* Matte Dark Palette */
  --bg-main: #09090B;
  --bg-surface: #121215;
  --bg-surface-elevated: #1A1A1E;
  --bg-card: rgba(18, 18, 21, 0.85);

  --text-main: #F4F4F5;
  --text-body: #A1A1AA;
  --text-muted: #71717A;
  --text-dim: #52525B;

  --border-subtle: #27272A;
  --border-bright: #3F3F46;

  /* Refined Champagne / Muted Gold & Titanium Accents */
  --accent-gold: #D4AF37;
  --accent-champagne: #E5C158;
  --accent-titanium: #E4E4E7;
  --accent-muted-gold: rgba(212, 175, 55, 0.15);

  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition-fast: 150ms ease;
  --transition-smooth: 250ms ease;
}

/* Light Theme Mode */
[data-theme="light"] {
  --bg-main: #FAFAFA;
  --bg-surface: #F4F4F5;
  --bg-surface-elevated: #E4E4E7;
  --bg-card: #FFFFFF;

  --text-main: #09090B;
  --text-body: #3F3F46;
  --text-muted: #71717A;
  --text-dim: #A1A1AA;

  --border-subtle: #E4E4E7;
  --border-bright: #D4D4D8;

  --accent-gold: #B48A1D;
  --accent-champagne: #9A7210;
  --accent-titanium: #18181B;
  --accent-muted-gold: rgba(180, 138, 29, 0.1);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Architectural Grid Lines Overlay */
.editorial-grid-bg {
  position: fixed;
  inset: 0;
  background-image: 
    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: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

[data-theme="light"] .editorial-grid-bg {
  background-image: 
    linear-gradient(to right, rgba(9, 9, 11, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(9, 9, 11, 0.025) 1px, transparent 1px);
}

/* Container */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* --------------------------------------------------------------------------
   HEADER & TOP SOCIAL STRIP (PROMINENT AT TOP)
   -------------------------------------------------------------------------- */
.site-header {
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-main);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.top-social-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.top-social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-main);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.top-social-link:hover {
  color: var(--accent-gold);
}

.header-nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4rem;
}

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

.brand-photo {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
  border: 1px solid var(--border-bright);
  filter: grayscale(30%);
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.nav-link {
  color: var(--text-muted);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

/* Theme Toggle */
.theme-btn {
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.theme-btn:hover {
  border-color: var(--border-bright);
}

/* --------------------------------------------------------------------------
   HERO / EXECUTIVE SUMMARY (COMPACT & HIGH IMPACT)
   -------------------------------------------------------------------------- */
.hero-compact {
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-editorial-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3rem;
  align-items: start;
}

.portrait-frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-bright);
  background: var(--bg-surface);
  max-width: 340px;
  width: 100%;
  margin: 0 auto;
}

.portrait-img {
  width: 100%;
  height: auto;
  aspect-ratio: 531 / 612;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(20%) contrast(105%);
  display: block;
}

.portrait-caption {
  padding: 0.65rem 0.85rem;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.hero-main-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.hero-headline i {
  font-style: italic;
  color: var(--accent-champagne);
  font-weight: 400;
}

.hero-bio {
  font-size: 1rem;
  color: var(--text-body);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

/* Quick Metrics Row */
.quick-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.q-stat {
  display: flex;
  flex-direction: column;
}

.q-stat-val {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.q-stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   COMPACT DENSE EXPERIENCE LEDGER (SEE ALL XP IMMEDIATELY)
   -------------------------------------------------------------------------- */
.section-compact {
  padding: 3rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.section-heading {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1.75rem;
}

/* Experience Compact Table / Grid */
.xp-ledger {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.xp-row {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.35rem 1.5rem;
  transition: border-color var(--transition-fast);
}

.xp-row:hover {
  border-color: var(--border-bright);
}

.xp-row-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.xp-title-block {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.xp-role {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.xp-company {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-gold);
}

.xp-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.xp-bullets {
  list-style: none;
  space-y: 0.4rem;
}

.xp-bullets li {
  font-size: 0.875rem;
  color: var(--text-body);
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.35rem;
  line-height: 1.5;
}

.xp-bullets li::before {
  content: '▪';
  position: absolute;
  left: 0;
  color: var(--accent-gold);
  font-size: 0.7rem;
}

.xp-skills-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.skill-tag-sm {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   FEATURED PROJECTS (RECON7 FLAGSHIP SPOTLIGHT)
   -------------------------------------------------------------------------- */
.projects-flex {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.5rem;
}

.project-box {
  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;
}

.project-box.flagship {
  border-color: var(--border-bright);
}

.project-badge-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.badge-editorial {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
}

.badge-gold {
  background: var(--accent-gold);
  color: #09090B;
}

.badge-dark {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-body);
}

.project-heading {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.project-summary {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

/* --------------------------------------------------------------------------
   SKILLS MATRIX & CERTIFICATIONS (GRID COMPACT)
   -------------------------------------------------------------------------- */
.skills-cert-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2rem;
}

.skills-compact-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.cat-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.cat-items {
  font-size: 0.85rem;
  color: var(--text-body);
  line-height: 1.5;
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cert-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.cert-issuer {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.cert-title {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Footer */
.footer-compact {
  padding: 2.5rem 0;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
}

/* --------------------------------------------------------------------------
   RESPONSIVE DESIGN SYSTEM (MOBILE & TABLET OPTIMIZED)
   -------------------------------------------------------------------------- */

@media (max-width: 992px) {
  .container {
    padding: 0 1.25rem;
  }

  .hero-editorial-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .portrait-frame {
    max-width: 320px;
    margin: 0 auto;
    width: 100%;
  }

  .portrait-img {
    width: 100%;
    height: auto;
    aspect-ratio: 531 / 612;
  }

  .projects-flex {
    grid-template-columns: 1fr;
  }

  .skills-cert-grid {
    grid-template-columns: 1fr;
  }

  .skills-compact-group {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-top-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
  }

  .top-social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    font-size: 0.78rem;
  }

  .top-social-link {
    white-space: nowrap;
  }

  .header-nav-bar {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding: 0.85rem 0;
    gap: 0.75rem;
  }

  .nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.8rem;
    width: 100%;
    border-top: 1px solid var(--border-subtle);
    padding-top: 0.65rem;
  }

  .hero-headline {
    font-size: 2.15rem;
    line-height: 1.2;
  }

  .hero-bio {
    font-size: 0.95rem;
  }

  .quick-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem 1rem;
  }

  .q-stat-val {
    font-size: 1.2rem;
    word-break: break-word;
  }

  .q-stat-label {
    font-size: 0.65rem;
  }

  .xp-row {
    padding: 1.1rem 1rem;
  }

  .xp-row-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .xp-date {
    font-size: 0.7rem;
    color: var(--accent-gold);
  }

  .xp-bullets li {
    font-size: 0.825rem;
  }

  .section-heading {
    font-size: 1.65rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 0.85rem;
  }

  .header-top-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-headline {
    font-size: 1.85rem;
  }

  .quick-stats-row {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  .top-social-link {
    font-size: 0.72rem;
  }
}