/* ==========================================================================
   DANDY HUFFAZ ICHLAMSYAH — 3D CREATIVE PORTFOLIO (LIGHT STUDIO TECH)
   Design Language: Clean Architectural White, Precision Azure, & Spatial 3D
   Invariants: WCAG AAA Contrast (10:1+), Anti-Slop Discipline, Zero-Lag 60 FPS
   ========================================================================== */

/* === DESIGN TOKENS (LIGHT STUDIO) === */
:root {
  /* Functional Light Studio Neutral Scale */
  --bg-canvas: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-glass-card: rgba(255, 255, 255, 0.88);
  --bg-glass-nav: rgba(248, 250, 252, 0.85);

  /* Borders */
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-medium: rgba(15, 23, 42, 0.14);
  --border-focus: rgba(2, 132, 199, 0.45);

  /* Domain Accent: High-Contrast Precision Azure */
  --accent-blue: #0284c7;
  --accent-blue-hover: #0369a1;
  --accent-blue-soft: rgba(2, 132, 199, 0.08);
  --accent-blue-glow: rgba(2, 132, 199, 0.2);
  --accent-emerald: #059669;
  --accent-emerald-soft: rgba(5, 150, 105, 0.1);

  /* Text Contrast Hierarchy (WCAG AAA) */
  --text-primary: #0f172a;     /* Slate 900 - Contrast 14.5:1 on white */
  --text-secondary: #334155;   /* Slate 700 - Contrast 8.5:1 on white */
  --text-muted: #64748b;       /* Slate 500 - Contrast 4.6:1 on white */
  --text-inverse: #ffffff;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-display: 'Space Grotesk', var(--font-sans);

  /* Elevation & Shadows (Ultra-Soft Studio Occlusion) */
  --shadow-subtle: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-card: 0 4px 16px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --shadow-hover: 0 14px 30px -4px rgba(15, 23, 42, 0.1), 0 4px 10px -2px rgba(15, 23, 42, 0.04);
  --shadow-modal: 0 25px 60px -12px rgba(15, 23, 42, 0.25);

  /* Layout */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions (Silky Smooth) */
  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-spatial: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* === CSS RESET & BASE STYLES === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Touch discipline */
a, button, input, textarea, select {
  touch-action: manipulation;
}

/* Fluid Typography */
h1, .h1-display {
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 5vw, 4.2rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

h2, .h2-display {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

h3 {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.8vw, 1.45rem);
  line-height: 1.25;
  font-weight: 600;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  font-size: clamp(0.95rem, 1.05vw, 1.05rem);
}

/* === LIGHT 3D CANVAS BACKGROUND === */
#webgl-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.85;
}

/* Clean Studio Mesh Grid Overlay */
.ambient-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  background-image: 
    linear-gradient(to right, rgba(15, 23, 42, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 40%, transparent 95%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 40%, transparent 95%);
}

.site-content {
  position: relative;
  z-index: 10;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* === HEADER & NAVIGATION === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1rem 0;
  transition: all var(--transition-smooth);
}

.site-header.scrolled {
  padding: 0.65rem 0;
  background: var(--bg-glass-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-subtle);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-glyph {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--accent-blue);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
  transition: transform var(--transition-fast);
}

.brand-logo:hover .brand-glyph {
  transform: translateY(-2px);
}

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

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.brand-role {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

@media (min-width: 900px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent-blue);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

@media (min-width: 900px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle:hover {
  background: var(--bg-subtle);
}

.mobile-drawer {
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-medium);
  padding: 1.5rem;
  display: none;
  flex-direction: column;
  gap: 1rem;
  z-index: 99;
  box-shadow: var(--shadow-card);
}

.mobile-drawer.open {
  display: flex;
  animation: slideDown 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-drawer .nav-link {
  padding: 0.75rem 0;
  font-size: 1.05rem;
  border-bottom: 1px solid var(--border-subtle);
}

/* === BUTTONS & HR STATUS BADGES === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 48px;
  min-width: 48px;
  user-select: none;
}

.btn-primary {
  background: var(--accent-blue);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.25);
}

.btn-primary:hover {
  background: var(--accent-blue-hover);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.35);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-surface);
  border-color: var(--border-medium);
  color: var(--text-primary);
  box-shadow: var(--shadow-subtle);
}

.btn-secondary:hover {
  background: var(--bg-subtle);
  border-color: rgba(15, 23, 42, 0.25);
  transform: translateY(-2px);
}

/* Clear HR Internship Availability Badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.95rem;
  background: var(--accent-emerald-soft);
  border: 1px solid rgba(5, 150, 105, 0.3);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-emerald);
  letter-spacing: 0.01em;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px rgba(5, 150, 105, 0.6);
  animation: pulseLight 2s infinite;
}

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

/* === SECTION HEADERS === */
.section {
  padding: clamp(4.5rem, 7vw, 7rem) 0;
  position: relative;
}

.section-header {
  margin-bottom: clamp(2.5rem, 4.5vw, 3.5rem);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  margin-bottom: 0.65rem;
}

.section-title {
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.section-description {
  max-width: 680px;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* === HERO SECTION === */
.hero-section {
  min-height: 94vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 6.5rem;
  padding-bottom: 3.5rem;
}

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

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3.5rem;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.hero-title .highlight-text {
  color: var(--accent-blue);
  position: relative;
}

.hero-bio {
  font-size: clamp(1rem, 1.15vw, 1.12rem);
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 620px;
}

.hero-specialization {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.spec-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: var(--shadow-subtle);
}

.spec-chip i {
  color: var(--accent-blue);
  font-size: 0.82rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 0.5rem;
}

/* Quick Stats Bar */
.quick-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: 0.75rem;
}

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

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}

.stat-value .stat-accent {
  color: var(--accent-blue);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Hero 3D Identity Card (Light Porcelain Studio) */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1200px;
}

.spatial-card-3d {
  position: relative;
  width: 100%;
  max-width: 440px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-hover);
  transform-style: preserve-3d;
  transition: transform var(--transition-spatial), box-shadow var(--transition-smooth);
}

.profile-avatar-wrapper {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  transform: translateZ(25px);
}

.profile-avatar {
  width: 82px;
  height: 82px;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 2px solid var(--border-medium);
  box-shadow: var(--shadow-card);
}

.profile-header-info {
  display: flex;
  flex-direction: column;
}

.profile-card-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.18rem;
  color: var(--text-primary);
}

.profile-card-sub {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-blue);
}

.profile-meta-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.5rem;
  transform: translateZ(15px);
}

.meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.meta-key {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.meta-val {
  font-weight: 600;
  color: var(--text-primary);
}

.card-foot-badge {
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  transform: translateZ(10px);
}

/* === 3D CARDS COMPONENT (LIGHT STUDIO) === */
.card-3d {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-spatial), box-shadow var(--transition-smooth), border-color var(--transition-fast);
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card-3d:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-hover);
}

/* === ABOUT & VALUE PROPOSITION === */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: 1.35fr 1fr;
    gap: 3rem;
  }
}

.about-narrative {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.narrative-lead {
  font-size: 1.18rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.65;
}

.narrative-lead .text-accent {
  color: var(--accent-blue);
  font-weight: 600;
}

.about-pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.pillar-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
}

.pillar-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-card);
  transform: translateX(3px);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-blue-soft);
  border: 1px solid rgba(2, 132, 199, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1.15rem;
}

.pillar-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.pillar-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* === EDUCATION SECTION === */
.education-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .education-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.edu-badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-bottom: 0.85rem;
}

.edu-institution {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.edu-degree {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.edu-curriculum {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.edu-curriculum li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.edu-curriculum li i {
  color: var(--accent-blue);
  font-size: 0.72rem;
}

/* === EXPERIENCE TIMELINE === */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: 21px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-blue) 0%, rgba(15, 23, 42, 0.1) 100%);
  display: none;
}

@media (min-width: 768px) {
  .timeline::before {
    display: block;
  }
}

.timeline-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  position: relative;
}

@media (min-width: 768px) {
  .timeline-item {
    grid-template-columns: 44px 1fr;
    gap: 1.75rem;
  }
}

.timeline-marker {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 2px solid var(--accent-blue);
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 0.95rem;
  box-shadow: 0 2px 10px rgba(2, 132, 199, 0.2);
  z-index: 2;
}

@media (min-width: 768px) {
  .timeline-marker {
    display: flex;
  }
}

.exp-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1.2rem;
}

@media (min-width: 640px) {
  .exp-header {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
  }
}

.exp-role {
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--text-primary);
}

.exp-company {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-blue);
}

.exp-period {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.exp-breakdown {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

@media (min-width: 768px) {
  .exp-breakdown {
    grid-template-columns: repeat(3, 1fr);
  }
}

.breakdown-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.breakdown-tag {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 0.35rem;
}

.breakdown-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* === SELECTED WORKS (PROJECTS GRID) === */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.85rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.project-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.project-badge-live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  background: var(--accent-emerald-soft);
  border: 1px solid rgba(5, 150, 105, 0.25);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-emerald);
}

.project-badge-award {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  background: rgba(2, 132, 199, 0.08);
  border: 1px solid rgba(2, 132, 199, 0.25);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-blue);
}

.project-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.project-category {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-blue);
  margin-bottom: 0.85rem;
  font-weight: 600;
}

.project-summary {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.project-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}

.project-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-blue);
  text-decoration: none;
  transition: gap var(--transition-fast);
}

.project-link-btn:hover {
  gap: 0.65rem;
  color: var(--accent-blue-hover);
}

/* === SKILLS MATRIX === */
.skills-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 900px) {
  .skills-matrix {
    grid-template-columns: repeat(3, 1fr);
  }
}

.matrix-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.matrix-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.skill-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.skill-chip i {
  color: var(--accent-blue);
  font-size: 0.85rem;
}

.skill-chip:hover {
  border-color: var(--accent-blue);
  background: var(--accent-blue-soft);
  transform: translateY(-2px);
}

/* === CERTIFICATIONS VAULT === */
.cert-controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .cert-controls {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

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

.filter-btn {
  padding: 0.45rem 0.95rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
}

.filter-btn.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #ffffff;
}

.cert-search-box {
  position: relative;
  min-width: 260px;
}

.cert-search-input {
  width: 100%;
  padding: 0.55rem 1rem 0.55rem 2.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.cert-search-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.12);
}

.cert-search-icon {
  position: absolute;
  top: 50%;
  left: 0.75rem;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.8rem;
  pointer-events: none;
}

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

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

@media (min-width: 1024px) {
  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.cert-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-fast);
}

.cert-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.cert-badge-cat {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-blue);
  margin-bottom: 0.4rem;
}

.cert-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  line-height: 1.3;
}

.cert-issuer {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.cert-summary {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.cert-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
}

.cert-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-blue);
  text-decoration: none;
  cursor: pointer;
  background: transparent;
  border: none;
  transition: gap var(--transition-fast);
}

.cert-view-btn:hover {
  gap: 0.65rem;
}

/* === CONTACT SECTION === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 3.5rem;
  }
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-fast);
}

.contact-item:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-card);
  transform: translateX(4px);
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-blue-soft);
  border: 1px solid rgba(2, 132, 199, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1.1rem;
}

.contact-item-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.contact-item-value {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-canvas);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-blue);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.12);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.form-feedback {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: none;
}

.form-feedback.success {
  display: block;
  background: var(--accent-emerald-soft);
  border: 1px solid var(--accent-emerald);
  color: var(--accent-emerald);
}

.form-feedback.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid #ef4444;
  color: #b91c1c;
}

/* === FOOTER === */
.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  position: relative;
  z-index: 10;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
  }
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.social-link:hover {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  background: #ffffff;
  transform: translateY(-2px);
}

/* === CERTIFICATE MODAL LIGHTBOX === */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.open {
  display: flex;
  animation: fadeIn 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-window {
  width: 100%;
  max-width: 960px;
  height: 85vh;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

.modal-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

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

.modal-close-btn:hover {
  color: var(--text-primary);
  background: #e2e8f0;
}

.modal-body {
  flex: 1;
  background: #f1f5f9;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-body iframe, .modal-body img {
  width: 100%;
  height: 100%;
  border: none;
  object-fit: contain;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.modal-footer-info {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}