:root {
  --bg: #f5f8fc;
  --panel: rgba(255, 255, 255, 0.8);
  --panel-border: rgba(10, 43, 86, 0.12);
  --text: #0b1f3b;
  --muted: #4e6281;
  --accent: #0f6f8c;
  --accent-2: #d96d3f;
  --shadow: 0 18px 45px rgba(13, 36, 71, 0.15);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 15% 20%, #e7f4ff 0%, transparent 35%),
    radial-gradient(circle at 80% 5%, #ffeede 0%, transparent 33%), var(--bg);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image: linear-gradient(rgba(11, 31, 59, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 31, 59, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 90%);
}

.bg-glow {
  position: fixed;
  width: 42rem;
  height: 42rem;
  border-radius: 999px;
  z-index: -2;
  filter: blur(75px);
  opacity: 0.36;
}

.bg-glow-a {
  top: -16rem;
  left: -6rem;
  background: #9cd7ff;
}

.bg-glow-b {
  bottom: -20rem;
  right: -8rem;
  background: #ffd3b8;
}

.container {
  width: min(1100px, calc(100% - 2.2rem));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(245, 248, 252, 0.74);
  border-bottom: 1px solid rgba(11, 31, 59, 0.08);
}

.topbar-inner {
  height: 4.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 0.88rem;
}

.nav {
  display: flex;
  gap: 1.2rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 700;
}

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

.hero {
  padding: 5.5rem 0 2.8rem;
}

.tag {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(15, 111, 140, 0.25);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.hero h1 {
  margin: 1rem 0 0.9rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.hero h1 span {
  color: var(--accent);
}

.hero-desc {
  max-width: 700px;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions {
  margin-top: 1.7rem;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  font-weight: 700;
  padding: 0.72rem 1.15rem;
  border-radius: 0.8rem;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

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

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #0d8a7f);
  box-shadow: 0 10px 24px rgba(15, 111, 140, 0.3);
}

.btn-ghost {
  color: var(--text);
  border: 1px solid rgba(11, 31, 59, 0.18);
  background: rgba(255, 255, 255, 0.7);
}

.stats {
  margin-top: 2.2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.stats article {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
  padding: 0.95rem 1rem;
  box-shadow: var(--shadow);
}

.stats h3 {
  margin: 0;
  font-size: 1.5rem;
}

.stats p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.panel,
.contact {
  margin: 1.3rem 0;
  border: 1px solid var(--panel-border);
  border-radius: 1.2rem;
  padding: 1.3rem;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.panel-head h2,
.contact h2 {
  margin: 0;
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  letter-spacing: -0.01em;
}

.panel-head p,
.contact p {
  margin: 0;
  color: var(--muted);
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.skill-card,
.project-card {
  border: 1px solid rgba(11, 31, 59, 0.1);
  border-radius: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.75);
}

.skill-card h3,
.project-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.1rem;
}

.skill-card ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
}

.skill-card li + li {
  margin-top: 0.35rem;
}

.project-list {
  display: grid;
  gap: 1rem;
}

.project-type {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.07em;
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
}

.project-card p {
  color: var(--muted);
}

.project-card code {
  font-family: "JetBrains Mono", monospace;
  color: #4f2c1f;
  background: #ffe9db;
  padding: 0.2rem 0.35rem;
  border-radius: 0.4rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.timeline article {
  padding: 0.9rem;
  border-left: 4px solid var(--accent-2);
  background: rgba(255, 255, 255, 0.7);
  border-radius: 0.65rem;
}

.timeline h3 {
  margin: 0 0 0.3rem;
}

.timeline p {
  margin: 0;
  color: var(--muted);
}

.contact {
  text-align: center;
  margin-bottom: 4rem;
}

.mail {
  display: inline-block;
  margin-top: 0.65rem;
  color: #fff;
  text-decoration: none;
  font-family: "JetBrains Mono", monospace;
  background: linear-gradient(125deg, #175888, #d96d3f);
  padding: 0.65rem 1rem;
  border-radius: 0.75rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 920px) {
  .skill-grid,
  .timeline,
  .stats {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 4.4rem;
  }
}

@media (max-width: 640px) {
  .topbar-inner {
    height: auto;
    padding: 0.85rem 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.65rem;
  }

  .nav {
    gap: 0.9rem;
    flex-wrap: wrap;
  }
}