:root {
  --bg: #030b10;
  --bg-secondary: #071b1d;
  --panel: rgba(8, 16, 19, 0.84);
  --panel-strong: rgba(14, 28, 34, 0.96);
  --primary: #65f1c6;
  --primary-bright: #7ef9d0;
  --secondary: #76d7ff;
  --text: #ecfdf9;
  --muted: #a7c7c0;
  --border: rgba(130, 255, 214, 0.18);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  --glow: 0 0 22px rgba(101, 241, 198, 0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at top, rgba(101, 241, 198, 0.16), transparent 25%),
    radial-gradient(circle at bottom right, rgba(118, 215, 255, 0.1), transparent 25%),
    linear-gradient(135deg, var(--bg), var(--bg-secondary), #040b12 80%);
  color: var(--text);
  line-height: 1.7;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(101, 241, 198, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(101, 241, 198, 0.04) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 100%);
  pointer-events: none;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.section {
  padding: 6rem 0;
}

.section-heading {
  margin-bottom: 2rem;
}

.eyebrow {
  display: inline-block;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 1rem;
  text-shadow: 0 0 12px rgba(101, 241, 198, 0.7);
}

h1, h2, h3 {
  line-height: 1.15;
  letter-spacing: -0.04em;
}

h1 {
  font-size: clamp(2.7rem, 5vw, 4.9rem);
  margin-bottom: 1rem;
  color: var(--text);
  text-shadow: 0 0 18px rgba(101, 241, 198, 0.2);
}

h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin-bottom: 0.8rem;
}

h3 {
  font-size: 1.25rem;
}

p {
  color: var(--muted);
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(14px);
  background: rgba(5, 12, 15, 0.8);
  border-bottom: 1px solid var(--border);
  z-index: 20;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #041611;
  box-shadow: var(--glow);
  border: 1px solid rgba(118, 215, 255, 0.4);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--muted);
  font-size: 0.96rem;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text);
  text-shadow: 0 0 12px rgba(118, 215, 255, 0.7);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.92rem 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  border: 1px solid transparent;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, var(--primary), #90f5ff);
  color: #021711;
  box-shadow: 0 15px 30px rgba(101, 241, 198, 0.22);
}

.button.outline {
  border-color: rgba(118, 215, 255, 0.25);
  background: rgba(7, 18, 22, 0.48);
  color: var(--text);
}

.hero {
  padding: 5rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}

.hero-copy p {
  font-size: 1.05rem;
  max-width: 650px;
}

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

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(110px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
  list-style: none;
}

.hero-metrics li {
  background: rgba(8, 20, 22, 0.8);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 0.75rem;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(118, 215, 255, 0.06);
}

.hero-metrics strong {
  display: block;
  font-size: 1.5rem;
  color: var(--primary-bright);
  text-shadow: 0 0 14px rgba(101, 241, 198, 0.35);
}

.hero-panel {
  background: linear-gradient(180deg, rgba(12, 20, 24, 0.94), rgba(8, 15, 18, 0.9));
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.panel-card {
  background: linear-gradient(180deg, rgba(18, 32, 36, 0.96), rgba(12, 22, 24, 0.84));
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 1.5rem;
}

.status-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
  gap: 1rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--primary);
  background: rgba(101, 241, 198, 0.08);
  padding: 0.48rem 0.82rem;
  border-radius: 999px;
  border: 1px solid rgba(101, 241, 198, 0.24);
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #49f1b3;
  box-shadow: 0 0 13px rgba(73, 241, 179, 0.9);
}

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

.log-card {
  border-radius: 14px;
  background: rgba(4, 14, 18, 0.9);
  border: 1px solid var(--border);
  padding: 1rem;
}

.log-card small {
  color: var(--muted);
}

.log-card strong {
  display: block;
  font-size: 1.15rem;
  margin-top: 0.4rem;
  color: var(--text);
}

.about-grid,
.case-grid,
.timeline,
.cert-grid,
.project-grid,
.contact-layout {
  display: grid;
  gap: 1.5rem;
}

.about-grid {
  grid-template-columns: 1.1fr 0.9fr;
}

.info-card,
.timeline-item,
.cert-card,
.project-card,
.contact-card {
  background: rgba(9, 18, 21, 0.85);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 1.6rem;
  box-shadow: var(--shadow);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.skill-list span {
  background: rgba(101, 241, 198, 0.06);
  color: var(--primary);
  border: 1px solid rgba(101, 241, 198, 0.2);
  border-radius: 999px;
  padding: 0.48rem 0.8rem;
  font-size: 0.82rem;
}

.case-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-card {
  background: rgba(10, 20, 25, 0.9);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.6rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.case-card:hover {
  border-color: rgba(101, 241, 198, 0.35);
  transform: translateY(-2px);
}

.case-card .icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(101, 241, 198, 0.08);
  color: var(--primary);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  box-shadow: var(--glow);
}

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

.timeline-item {
  position: relative;
  padding-left: 1.5rem;
  border-left: 2px solid rgba(101, 241, 198, 0.25);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -0.46rem;
  top: 1.5rem;
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 14px rgba(101, 241, 198, 0.86);
}

.timeline-item .meta {
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.cert-grid,
.project-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-card ul,
.contact-layout ul {
  list-style: none;
  margin-top: 1rem;
}

.project-card li,
.contact-layout li {
  color: var(--muted);
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.25rem;
}

.project-card li::before,
.contact-layout li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary);
}

.tag-row {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.tag {
  display: inline-block;
  background: rgba(118, 215, 255, 0.08);
  border: 1px solid rgba(118, 215, 255, 0.15);
  border-radius: 999px;
  padding: 0.4rem 0.7rem;
  font-size: 0.72rem;
  color: var(--secondary);
}

.page-hero {
  padding-top: 4rem;
  padding-bottom: 2rem;
}

.page-shell {
  padding-bottom: 4rem;
}

.contact-layout {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.25rem;
}

footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .contact-layout,
  .case-grid,
  .cert-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    gap: 1rem;
    padding: 1rem 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .main-nav {
    gap: 0.8rem 1rem;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 4.5rem 0;
  }

  .hero {
    padding-top: 3rem;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }
}