/* ===========================================================
   Jeferson Araujo — Portfólio (Redesign 2026)
   style.css — design system, layout, animations
   =========================================================== */

/* ---------- Design Tokens ---------- */
:root {
  --bg-deep: #06080E;
  --bg-body: #0A0C14;
  --surface: #12141D;
  --surface-hover: #181B28;
  --surface-glass: rgba(18, 20, 29, 0.72);
  --border: #1E2130;
  --border-light: rgba(124, 155, 255, 0.12);

  --text-primary: #F0F2F8;
  --text-secondary: #9AA4B2;
  --text-muted: #6B7280;

  --accent: #7C9BFF;
  --accent-soft: rgba(124, 155, 255, 0.12);
  --accent-glow: rgba(124, 155, 255, 0.25);
  --accent-gradient: linear-gradient(135deg, #7C9BFF, #A78BFA);
  --purple: #A78BFA;
  --purple-soft: rgba(167, 139, 250, 0.10);
  --green: #34D399;
  --green-soft: rgba(52, 211, 153, 0.12);
  --amber: #FBBF24;
  --amber-soft: rgba(251, 191, 36, 0.10);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 200ms var(--ease-out);
  --transition-med: 400ms var(--ease-out);
  --transition-slow: 700ms var(--ease-out);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  background: var(--bg-body);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.15;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

::selection {
  background: var(--accent);
  color: #06080E;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent-gradient);
  color: #06080E;
  padding: 0.75rem 1.25rem;
  z-index: 2000;
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

/* ---------- Animated Background ---------- */
.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.bg-gradient-sphere {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
}

.bg-sphere-1 {
  width: 600px; height: 600px;
  background: var(--accent);
  top: -200px; left: -200px;
  animation: sphereFloat1 20s ease-in-out infinite;
}

.bg-sphere-2 {
  width: 450px; height: 450px;
  background: var(--purple);
  bottom: -150px; right: -150px;
  animation: sphereFloat2 25s ease-in-out infinite;
}

.bg-sphere-3 {
  width: 350px; height: 350px;
  background: var(--green);
  top: 50%; left: 50%;
  opacity: 0.06;
  animation: sphereFloat3 18s ease-in-out infinite;
}

@keyframes sphereFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(80px, 60px) scale(1.1); }
  66% { transform: translate(-40px, -80px) scale(0.95); }
}

@keyframes sphereFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-60px, -40px) scale(1.15); }
}

@keyframes sphereFloat3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -60px) scale(1.2); }
}

/* Grid overlay */
.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(124, 155, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(124, 155, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 30%, transparent 70%);
}

/* ---------- Particles (Canvas) ---------- */
#particleCanvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
}

/* ---------- Utility ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: clamp(2.5rem, 5vw, 4.5rem) 0;
  position: relative;
}

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
  max-width: 640px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border-light);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 56ch;
  line-height: 1.7;
}

.section-center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Glass Navbar ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition-med), box-shadow var(--transition-med);
}

.site-header.is-scrolled {
  background: var(--surface-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-gradient);
  color: #06080E;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 0 20px var(--accent-glow);
}

.brand-name {
  font-size: 1rem;
}

@media (max-width: 575px) {
  .brand-name { display: none; }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  position: relative;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--text-primary);
  background: var(--accent-soft);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-cta {
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
}

.nav-github {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.nav-github:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 0 20px var(--accent-glow);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.nav-toggle:hover { border-color: var(--accent); }

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(10, 12, 20, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-med);
  }

  .nav-links.is-open { max-height: 400px; }

  .nav-links a {
    padding: 0.8rem 1.5rem;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }

  .nav-actions {
    display: none;
  }

  .nav-actions-mobile {
    display: flex !important;
    padding: 1rem 1.5rem 1.5rem;
    gap: 0.75rem;
  }

  .nav-actions-mobile .nav-cta { flex: 1; }
}

.nav-actions-mobile { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn-lg { padding: 0.85rem 1.75rem; font-size: 1rem; }

.btn-primary {
  background: var(--accent-gradient);
  color: #06080E;
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-glass {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(4px);
}
.btn-glass:hover {
  background: rgba(124, 155, 255, 0.18);
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--accent);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 1;
}

@media (max-width: 991px) {
  .hero-container { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border-light);
  margin-bottom: 1.5rem;
}

.hero-tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.05;
  margin-bottom: 1.25rem;
}

.hero-title .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  max-width: 52ch;
  margin-bottom: 2.25rem;
  line-height: 1.7;
}

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

/* Hero visual — 3D floating elements */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 380px;
  position: relative;
}

.hero-cube-stack {
  position: relative;
  width: 280px;
  height: 280px;
  perspective: 800px;
}

.hero-cube {
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: transform var(--transition-med);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.hero-cube-1 {
  top: 10px;
  left: 50%;
  transform: translateX(-50%) rotateX(5deg) rotateY(-10deg);
  background: var(--accent-gradient);
  color: #06080E;
  width: 120px;
  height: 120px;
  font-size: 1.5rem;
  box-shadow: 0 20px 60px var(--accent-glow);
  border: none;
  animation: cubeFloat1 6s ease-in-out infinite;
  z-index: 3;
}

.hero-cube-2 {
  bottom: 20px;
  left: 0;
  transform: rotateX(10deg) rotateY(15deg);
  animation: cubeFloat2 7s ease-in-out infinite;
  z-index: 2;
  width: 90px;
  height: 90px;
  border-color: var(--border-light);
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.hero-cube-3 {
  bottom: 30px;
  right: 10px;
  transform: rotateX(-5deg) rotateY(20deg);
  animation: cubeFloat3 8s ease-in-out infinite;
  z-index: 1;
  width: 80px;
  height: 80px;
  font-size: 0.9rem;
  border-color: var(--border-light);
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

@keyframes cubeFloat1 {
  0%, 100% { transform: translateX(-50%) rotateX(5deg) rotateY(-10deg) translateY(0); }
  50% { transform: translateX(-50%) rotateX(5deg) rotateY(-10deg) translateY(-15px); }
}

@keyframes cubeFloat2 {
  0%, 100% { transform: rotateX(10deg) rotateY(15deg) translateY(0); }
  50% { transform: rotateX(10deg) rotateY(15deg) translateY(-12px); }
}

@keyframes cubeFloat3 {
  0%, 100% { transform: rotateX(-5deg) rotateY(20deg) translateY(0); }
  50% { transform: rotateX(-5deg) rotateY(20deg) translateY(-10px); }
}

/* Orbiting ring */
.hero-ring {
  position: absolute;
  width: 260px;
  height: 260px;
  top: 10px;
  left: 10px;
  border: 1px solid var(--border-light);
  border-radius: 50%;
  animation: ringSpin 20s linear infinite;
}

.hero-ring::before {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  top: -3px;
  left: 50%;
  box-shadow: 0 0 10px var(--accent-glow);
}

@keyframes ringSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  z-index: 1;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.scroll-indicator:hover { opacity: 1; }

.scroll-line {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0.3); opacity: 1; }
  50% { transform: scaleY(1); opacity: 0.5; }
  100% { transform: scaleY(0.3); opacity: 1; }
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.about-text p:last-child { margin-bottom: 0; }

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

.highlight-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.highlight-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(124, 155, 255, 0.06);
}

.highlight-num {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  opacity: 0.7;
}

.highlight-card h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.highlight-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

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

@media (max-width: 420px) {
  .projects-grid { grid-template-columns: 1fr; }
}

.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--accent-soft), transparent);
  opacity: 0;
  transition: opacity var(--transition-med);
  pointer-events: none;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  border-color: var(--border-light);
}

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

.project-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: linear-gradient(135deg, var(--surface-hover), var(--bg-body));
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-med);
}

.project-card:hover .project-media img {
  transform: scale(1.06);
}

.project-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  color: var(--text-muted);
  background: linear-gradient(135deg, var(--surface-hover), var(--bg-body));
}

.status-badge {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: rgba(6, 8, 14, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  z-index: 1;
}

.status-dot { width: 6px; height: 6px; border-radius: 50%; }

.project-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
  position: relative;
  z-index: 1;
}

.project-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.8;
}

.project-body h3 {
  font-size: 1.25rem;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex: 1;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.tech-pill {
  font-size: 0.72rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.tech-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.project-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.project-actions .btn {
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
}

/* Featured indicator */
.project-featured {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber);
  background: rgba(251, 191, 36, 0.1);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(251, 191, 36, 0.2);
  z-index: 1;
}

/* ---------- Stack / Expertise ---------- */
.stack-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 768px) {
  .stack-split { grid-template-columns: 1fr; }
}

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

.expertise-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  height: 100%;
}

.expertise-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(124, 155, 255, 0.06);
}

.expertise-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  opacity: 0.7;
}

.expertise-card h3 {
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.expertise-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

/* Tech Cloud */
.stack-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.stack-col-label {
  font-family: var(--font-display);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.tech-cloud {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.tech-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.5rem 0.6rem 0.5rem 1rem;
  border-radius: 999px;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  transition: border-color var(--transition-fast);
}

.tech-group:hover {
  border-color: var(--accent);
}

.tech-group-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  margin-right: 0.25rem;
}

.tech-pill-sm {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  background: var(--bg-body);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  white-space: nowrap;
  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.tech-pill-sm:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ---------- Contact ---------- */
.contact-section {
  text-align: center;
}

.contact-box {
  max-width: 640px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 3rem 2.5rem;
  position: relative;
  overflow: hidden;
}

.contact-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, var(--accent-soft), transparent 70%);
  pointer-events: none;
}

.contact-content {
  position: relative;
  z-index: 1;
}

.contact-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 0.75rem;
}

.contact-subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1rem;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border);
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0.5rem;
  border-bottom: 1px solid var(--border);
  transition: padding var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
  border-radius: 4px;
}

.contact-link:hover {
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  color: var(--accent);
  background: var(--accent-soft);
}

.contact-link-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
}

.contact-link-value {
  font-size: 0.95rem;
  font-weight: 500;
  word-break: break-all;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  background: var(--bg-deep);
}

.footer-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.footer-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent-gradient);
  color: #06080E;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
}

.footer-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
}

.footer-tag {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

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

.footer-copy {
  color: var(--text-muted);
  font-size: 0.78rem;
  width: 100%;
  text-align: center;
  margin-top: 1rem;
}

@media (min-width: 768px) {
  .footer-copy {
    width: auto;
    text-align: right;
    margin-top: 0;
  }
}

/* ---------- Reveal Animations ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-scale] {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-reveal-scale].is-visible {
  opacity: 1;
  transform: scale(1);
}

/* ---------- Mouse cursor follower (desktop only) ---------- */
.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 155, 255, 0.08), transparent 70%);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  opacity: 0;
}

html:not(.cursor-disabled) .cursor-glow { opacity: 1; }

/* ---------- Responsive ---------- */
@media (max-width: 575px) {
  .container { padding: 0 16px; }
  .projects-grid { gap: 1rem; }
  .about-highlights { grid-template-columns: 1fr; }
  .expertise-grid { grid-template-columns: 1fr; }
  .contact-box { padding: 2rem 1.5rem; }
}

/* ---------- Print ---------- */
@media print {
  .bg-canvas, #particleCanvas, .cursor-glow, .scroll-indicator {
    display: none !important;
  }
  body { background: #fff; color: #000; }
  .site-header { position: static; background: none; border: none; }
  .section { padding: 1.5rem 0; }
  .project-card, .highlight-card, .expertise-card {
    break-inside: avoid;
    border-color: #ccc;
    background: #f5f5f5;
    box-shadow: none;
  }
}