/* =========================================
   CSS Custom Properties
   ========================================= */
:root {
  --color-bg: #0d1117;
  --color-bg-alt: #161b22;
  --color-bg-card: #1c2128;
  --color-border: #30363d;
  --color-text: #e6edf3;
  --color-text-muted: #7d8590;
  --color-text-dim: #484f58;
  --color-primary: #58a6ff;
  --color-primary-dark: #1f6feb;
  --color-green: #3fb950;
  --color-orange: #f78166;
  --color-yellow: #d29922;
  --color-purple: #bc8cff;
  --color-cyan: #39d353;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', system-ui, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,.5);
  --shadow-glow: 0 0 24px rgba(88,166,255,.15);
  --transition: 200ms ease;
}

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

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

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul { list-style: none; }

img, svg { display: block; }

/* =========================================
   Utility Classes
   ========================================= */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.link {
  color: var(--color-primary);
  transition: color var(--transition);
}
.link:hover { color: #79c0ff; text-decoration: underline; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary-dark);
  border-color: var(--color-primary);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--lg { padding: 14px 28px; font-size: 1rem; }

/* =========================================
   Navigation
   ========================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

.nav__container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-mono);
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -.02em;
}
.nav__logo-bracket { color: var(--color-text-muted); }
.nav__logo-at { color: var(--color-primary); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: .875rem;
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.nav__link:hover { color: var(--color-text); background: var(--color-bg-alt); }
.nav__link--cta {
  background: var(--color-primary-dark);
  color: #fff;
  border: 1px solid var(--color-primary);
  font-family: var(--font-mono);
}
.nav__link--cta:hover { background: var(--color-primary); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 96px 24px 48px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#heroCanvas {
  width: 100%;
  height: 100%;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
}

.hero__terminal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md), var(--shadow-glow);
  margin-bottom: 32px;
}

.hero__terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot--red    { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green  { background: #28c840; }

.hero__terminal-title {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--color-text-muted);
  margin-left: 8px;
}

.hero__terminal-body {
  padding: 24px 28px;
  font-family: var(--font-mono);
}

.hero__terminal-line {
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.hero__prompt { color: var(--color-green); margin-right: 8px; }

.hero__name {
  font-family: var(--font-sans);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 4px 0 16px;
  line-height: 1.2;
}

.hero__role {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.hero__cursor {
  animation: blink 1s step-end infinite;
  color: var(--color-primary);
}
@keyframes blink { 50% { opacity: 0; } }

.hero__tagline {
  font-size: .9rem;
  color: var(--color-cyan);
  margin-top: 6px;
}

.hero__actions {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero__stat-number {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
}
.hero__stat-label {
  font-size: .8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}

/* =========================================
   Sections
   ========================================= */
.section { padding: 80px 0; }
.section--alt { background: var(--color-bg-alt); }

.section__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
  position: relative;
  display: inline-block;
}
.section__title::after {
  content: '';
  display: block;
  height: 3px;
  width: 48px;
  background: var(--color-primary);
  border-radius: 2px;
  margin-top: 8px;
  margin-bottom: 40px;
}

.section__subtitle {
  color: var(--color-text-muted);
  margin-bottom: 40px;
  font-size: 1.05rem;
}

/* =========================================
   About
   ========================================= */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about__text {
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.8;
}
.about__text strong { color: var(--color-text); }

.about__links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: .85rem;
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.social-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.social-link__icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.about__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-family: var(--font-mono);
}

.about__card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  font-size: .8rem;
  color: var(--color-text-muted);
}
.about__card-icon { font-size: 1rem; }

.about__card-body { padding: 20px; }

.highlight { margin-bottom: 14px; font-size: .85rem; }
.highlight__key { color: var(--color-primary); }
.highlight__list {
  list-style: none;
  padding-left: 16px;
  margin-top: 4px;
}
.highlight__list li {
  color: var(--color-orange);
  margin-bottom: 2px;
}
.highlight__list li::before { content: '"'; }
.highlight__list li::after  { content: '",'; }
.highlight__list li:last-child::after { content: '"'; }

.highlight__value { color: var(--color-orange); }
.highlight__value--green { color: var(--color-green); }

/* =========================================
   Skills
   ========================================= */
.skills__categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.skill-category {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color var(--transition);
}
.skill-category:hover { border-color: var(--color-primary); }

.skill-category__title {
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.skill-category__icon { font-size: 1.2rem; }

.skill-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.skill-tag {
  padding: 4px 10px;
  background: rgba(88,166,255,.1);
  border: 1px solid rgba(88,166,255,.3);
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--color-primary);
}

/* =========================================
   Timeline / Experience
   ========================================= */
.timeline {
  position: relative;
  padding-left: 28px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
}

.timeline__item {
  position: relative;
  margin-bottom: 40px;
}
.timeline__item:last-child { margin-bottom: 0; }

.timeline__marker {
  position: absolute;
  left: -34px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border: 2px solid var(--color-bg);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(88,166,255,.5);
}

.timeline__content {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color var(--transition);
}
.timeline__content:hover { border-color: var(--color-primary); }

.timeline__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.timeline__role {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
}

.timeline__badge {
  padding: 2px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-family: var(--font-mono);
  font-weight: 600;
  background: rgba(63,185,80,.15);
  border: 1px solid rgba(63,185,80,.3);
  color: var(--color-green);
}
.timeline__badge--active { /* inherits above */ }

.timeline__company {
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.timeline__period {
  font-size: .85rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  margin-bottom: 12px;
}

.timeline__points {
  padding-left: 16px;
  list-style: disc;
  color: var(--color-text-muted);
  font-size: .9rem;
  line-height: 1.8;
}
.timeline__points li { margin-bottom: 4px; }
.timeline__points strong { color: var(--color-text); }

/* =========================================
   Services
   ========================================= */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-purple));
  transform: scaleX(0);
  transition: transform var(--transition);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.service-card__icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}

.service-card__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}

.service-card__desc {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* =========================================
   Certifications
   ========================================= */
.certs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color var(--transition);
}
.cert-card:hover { border-color: var(--color-primary); }

.cert-card__logo {
  width: 60px;
  height: 60px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .8rem;
  flex-shrink: 0;
}
.cert-card__logo--cncf {
  background: rgba(50,97,217,.2);
  border: 1px solid rgba(50,97,217,.4);
  color: #5b8dee;
}
.cert-card__logo--aws {
  background: rgba(255,153,0,.15);
  border: 1px solid rgba(255,153,0,.3);
  color: #ff9900;
}

.cert-card__title {
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.cert-card__issuer {
  font-size: .8rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.cert-card__badge {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(88,166,255,.1);
  border: 1px solid rgba(88,166,255,.3);
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  color: var(--color-primary);
}
.cert-card__badge--aws {
  background: rgba(255,153,0,.1);
  border-color: rgba(255,153,0,.3);
  color: #ff9900;
}

.education { border-top: 1px solid var(--color-border); padding-top: 40px; }

.education__title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.education__item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  max-width: 500px;
}
.education__icon { font-size: 1.8rem; }
.education__degree { font-weight: 600; color: var(--color-text); }
.education__school { font-size: .875rem; color: var(--color-text-muted); margin-top: 2px; }

/* =========================================
   Contact
   ========================================= */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.contact__item {
  margin-bottom: 20px;
}
.contact__label {
  display: block;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.contact__value {
  font-size: 1rem;
  font-weight: 500;
}

.contact__cta {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}

/* =========================================
   Footer
   ========================================= */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  text-align: center;
}
.footer__text {
  color: var(--color-text-muted);
  font-size: .875rem;
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
  }
  .nav__links.open { display: flex; }
  .nav__link { width: 100%; text-align: center; }
  .nav__toggle { display: flex; }

  .hero__name { font-size: 1.6rem; }

  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .hero__stats { gap: 20px; }

  .section { padding: 60px 0; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
}