:root {
  --bg: #f7fafb;
  --surface: #fafcfe;
  --text: #0a1929;
  --text-light: #354860;
  --text-muted: #5a7a8f;
  --muted: #5a7a8f;
  --accent: #0d9b8c;
  --accent-light: #e8f8f5;
  --accent-deep: #066b5f;
  --border: #d9e7f0;
  --border-soft: #eef3f8;
  --line: #d9e7f0;
  --success: #12a94f;
  --shadow-sm: 0 2px 8px rgba(10, 25, 41, 0.07);
  --shadow-md: 0 6px 18px rgba(10, 25, 41, 0.11);
  --shadow-lg: 0 12px 32px rgba(13, 155, 140, 0.15);
  --shadow-xl: 0 20px 48px rgba(13, 155, 140, 0.2);
  --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition: all 0.35s cubic-bezier(0.23, 1, 0.320, 1);
  --transition-slow: all 0.5s cubic-bezier(0.23, 1, 0.320, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f9fbfc 0%, #f5f8fa 50%, #f0f4f7 100%);
  min-height: 100vh;
  line-height: 1.7;
  letter-spacing: -0.25px;
  font-weight: 400;
  font-size: 1rem;
}

.ambient-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: 
    radial-gradient(circle at 12% 8%, rgba(13, 155, 140, 0.08) 0%, transparent 35%),
    radial-gradient(circle at 88% 92%, rgba(10, 25, 41, 0.05) 0%, transparent 40%);
  z-index: -1;
}

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.site-header {
  padding: 1rem 0 2.8rem;
  position: relative;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  position: sticky;
  top: 0;
  z-index: 120;
  padding: 0.8rem 0;
  background: rgba(250, 252, 254, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
}

.brand {
  font-family: "Newsreader", serif;
  font-size: clamp(1.35rem, 2.2vw, 1.8rem);
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.4px;
  transition: var(--transition-fast);
  background: linear-gradient(135deg, var(--text), var(--text-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  position: relative;
  letter-spacing: -0.1px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-deep));
  transition: width 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border-radius: 2px;
}

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

.nav-links a:hover::after {
  width: 100%;
}

.hero {
  margin-top: 2.1rem;
  max-width: 760px;
  animation: fade-rise 0.8s ease forwards;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 0.9rem 0;
  display: inline-block;
  background: transparent;
  padding: 0;
  border: 0;
}

h1,
h2,
h3 {
  font-family: "Newsreader", serif;
  line-height: 1.12;
  margin: 0.2rem 0 1rem;
}

h1 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.1rem, 4.3vw, 3.25rem);
  margin-bottom: 1rem;
  letter-spacing: -0.35px;
  line-height: 1.18;
  font-weight: 600;
  max-width: 24ch;
}

h2 {
  font-size: clamp(1.75rem, 2.8vw, 2.35rem);
  letter-spacing: -0.3px;
  margin-bottom: 1rem;
  font-weight: 650;
}

.hero-summary,
#about-text,
#contact-note {
  color: var(--muted);
  max-width: 66ch;
  line-height: 1.8;
  font-size: 1.02rem;
}

/* Keep in-page anchor jumps clear of the sticky nav */
.section {
  scroll-margin-top: 6.2rem;
}

.hero-cta {
  margin: 2rem 0 0 0;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.8rem;
  border-radius: 0.85rem;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.96rem;
  border: 2px solid transparent;
  transition: var(--transition-fast);
  cursor: pointer;
  letter-spacing: -0.2px;
  font-family: "Space Grotesk", sans-serif;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #0a8878 100%);
  color: #ffffff;
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-deep) 0%, #054e48 100%);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.btn-ghost {
  color: var(--text);
  border: 1.5px solid var(--border);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.btn-ghost:hover {
  background: rgba(13, 155, 140, 0.06);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stats {
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 0.7rem;
}

.stats {
  display: none;
}

.stats li {
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.78);
}

.stats strong {
  display: block;
  font-size: 1.4rem;
  line-height: 1.1;
  color: var(--text);
}

.section {
  padding: 5rem 0 0;
  position: relative;
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border-soft) 12%, var(--border-soft) 88%, transparent 100%);
  opacity: 0.6;
}

.section-head {
  margin-bottom: 1.65rem;
  max-width: 760px;
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.7rem;
  margin: 0 0 0.6rem 0;
  color: var(--accent);
  font-weight: 800;
  display: inline-block;
  background: rgba(13, 155, 140, 0.08);
  padding: 0.45rem 0.95rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(13, 155, 140, 0.15);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.chips span {
  border: 1px solid var(--accent);
  background: linear-gradient(135deg, var(--accent-light) 0%, rgba(232, 248, 245, 0.5) 100%);
  color: var(--accent-deep);
  padding: 0.6rem 1.1rem;
  border-radius: 0.65rem;
  font-weight: 600;
  font-size: 0.93rem;
  transition: var(--transition-fast);
  cursor: default;
  box-shadow: var(--shadow-sm);
}

.chips span:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #ffffff;
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-deep);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.3rem;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(13, 155, 140, 0.05), transparent);
  transition: left 0.6s ease;
}

.project-card:hover::before {
  left: 100%;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.project-card h3 {
  margin: 0 0 0.8rem 0;
  font-size: 1.35rem;
  color: var(--text);
  position: relative;
  z-index: 1;
}

.project-card p {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin: 0.6rem 0;
  line-height: 1.75;
  position: relative;
  z-index: 1;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
  margin-bottom: -0.5rem;
  position: relative;
  z-index: 1;
}

.project-links a {
  text-decoration: none;
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--accent-deep);
  border: 1.5px solid var(--accent);
  border-radius: 0.65rem;
  padding: 0.5rem 1rem;
  background: rgba(13, 155, 140, 0.08);
  transition: var(--transition-fast);
  letter-spacing: -0.1px;
}

.project-links a:hover {
  background: var(--accent);
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-deep);
}

.timeline {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}

.timeline-item {
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.92);
  border-radius: 1rem;
  padding: 1.5rem 1.4rem;
  transition: var(--transition-fast);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  position: relative;
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: -7.5px;
  top: 1.5rem;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border: 3px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border);
}

.timeline-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(6px);
  border-color: var(--accent);
}

.timeline-item h3 {
  margin: 0 0 0.4rem 0;
  color: var(--text);
  font-size: 1.2rem;
}

.timeline-item p {
  margin: 0.6rem 0 0;
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.7;
}

.achievement-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}

.achievement-list li {
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.3rem 1.5rem;
  font-size: 0.98rem;
  line-height: 1.8;
  transition: var(--transition-fast);
  position: relative;
  padding-left: 2.4rem;
}

.achievement-list li::before {
  content: '✓';
  position: absolute;
  left: 1.1rem;
  top: 0.9rem;
  color: var(--success);
  font-weight: 700;
  font-size: 1.2rem;
}

.achievement-list li:hover {
  background: rgba(13, 155, 140, 0.04);
  border-color: var(--accent);
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

.contact {
  padding: 5rem 0 0;
  padding-bottom: 5rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.contact-links a {
  text-decoration: none;
  padding: 0.85rem 1.3rem;
  border: 1.5px solid var(--accent);
  border-radius: 0.8rem;
  color: var(--accent-deep);
  background: rgba(13, 155, 140, 0.08);
  font-weight: 600;
  font-size: 0.96rem;
  transition: var(--transition-fast);
  letter-spacing: -0.1px;
  box-shadow: var(--shadow-sm);
}

.contact-links a:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.footer {
  border-top: 1px solid var(--border-soft);
  padding: 2rem 0 2.5rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  animation: fade-rise 0.75s ease forwards;
}

.reveal:nth-of-type(2) {
  animation-delay: 0.1s;
}

.reveal:nth-of-type(3) {
  animation-delay: 0.2s;
}

.reveal:nth-of-type(4) {
  animation-delay: 0.3s;
}

@keyframes fade-rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .container {
    width: min(100vw, 94vw);
    padding: 0 1rem;
  }

  .site-header {
    padding: 0.8rem 0 2.2rem;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 0.8rem 0;
  }

  .brand {
    font-size: 1.45rem;
  }

  .nav-links {
    gap: 1.5rem;
  }

  h1 {
    font-size: 2.1rem;
    margin-bottom: 1rem;
    max-width: 100%;
  }

  h2 {
    font-size: 1.6rem;
  }

  .hero {
    margin-top: 1.8rem;
  }

  .hero-summary {
    font-size: 1.02rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .certs-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.2rem;
  }

  .section {
    padding: 3.5rem 0 0;
  }

  .section-head {
    margin-bottom: 1.5rem;
  }

  .chips {
    gap: 0.6rem;
    margin-top: 1.2rem;
  }

  .chips span {
    padding: 0.55rem 0.95rem;
    font-size: 0.9rem;
  }

  .hero-cta {
    gap: 0.8rem;
    margin-top: 1.8rem;
  }

  .btn {
    padding: 0.8rem 1.3rem;
    font-size: 0.92rem;
  }

  .project-card {
    padding: 1.5rem;
  }

  .timeline-item {
    padding: 1.3rem 1.2rem;
  }

  .achievement-list li {
    padding: 1.2rem 1.2rem 1.2rem 2.2rem;
  }

  .contact-links {
    gap: 0.8rem;
  }

  .contact-links a {
    padding: 0.75rem 1.1rem;
    font-size: 0.92rem;
  }
}

@media (max-width: 480px) {
  .container {
    width: 96vw;
    padding: 0 0.8rem;
  }

  .site-header {
    padding: 0.7rem 0 1.8rem;
  }

  h1 {
    font-size: 1.85rem;
  }

  h2 {
    font-size: 1.35rem;
  }

  .eyebrow {
    font-size: 0.68rem;
    padding: 0.35rem 0.75rem;
  }

  .section {
    padding: 2.5rem 0 0;
  }

  .section-kicker {
    font-size: 0.67rem;
    padding: 0.35rem 0.75rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  .certs-grid {
    grid-template-columns: 1fr;
  }

  .chips {
    column-gap: 0.5rem;
    row-gap: 0.6rem;
  }

  .chips span {
    padding: 0.5rem 0.8rem;
    font-size: 0.85rem;
  }

  .btn {
    padding: 0.75rem 1.1rem;
    font-size: 0.88rem;
    border-radius: 0.7rem;
  }

  .hero-cta {
    gap: 0.7rem;
  }

  .contact-links {
    flex-direction: column;
    gap: 0.6rem;
  }

  .contact-links a {
    width: 100%;
    text-align: center;
  }

  .nav-links {
    flex-direction: column;
    gap: 1rem;
  }
}