* {
  box-sizing: border-box;
}

:root {
  --bg: #0f1720;
  --surface: rgba(18, 29, 44, 0.96);
  --surface-strong: rgba(23, 34, 52, 0.98);
  --text: #ebf1f5;
  --muted: #9ab3c4;
  --line: rgba(111, 151, 182, 0.18);
  --accent: #5ed3c2;
  --accent-dark: #1b7d75;
  --accent-soft: rgba(94, 211, 194, 0.12);
  --shadow: 0 28px 60px rgba(0, 0, 0, 0.32);
  --radius: 28px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 10%, rgba(94, 211, 194, 0.12), transparent 24rem),
    radial-gradient(circle at 80% 20%, rgba(94, 211, 194, 0.06), transparent 28rem),
    linear-gradient(180deg, #111827 0%, #0b1220 100%);
  color: var(--text);
  line-height: 1.65;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(15, 23, 40, 0.86);
  border-bottom: 1px solid rgba(94, 211, 194, 0.14);
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
}

.nav-links {
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-size: 0.95rem;
  align-items: center;
}

.nav-links a {
  transition: color 0.2s ease;
}

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

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  font-size: 1.75rem;
  cursor: pointer;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero {
  min-height: 82vh;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.75fr);
  align-items: center;
  gap: 48px;
  padding: 88px 0 58px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.12;
  margin: 0;
  letter-spacing: -0.04em;
}

h1 {
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  max-width: 820px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.3rem);
}

h3 {
  font-size: 1.32rem;
}

.hero-text {
  max-width: 690px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.14rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 750;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

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

.btn.primary {
  color: white;
  background: var(--accent);
  box-shadow: 0 18px 40px rgba(94, 211, 194, 0.24);
}

.btn.secondary {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.hero-card,
.project-card,
.skill-card,
.education-card,
.contact-card,
.timeline-content {
  background: var(--surface);
  border: 1px solid rgba(94, 211, 194, 0.12);
  box-shadow: var(--shadow);
}

.hero-card {
  border-radius: var(--radius);
  padding: 34px;
}

.profile-avatar {
  width: 76px;
  height: 76px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  color: white;
  background: linear-gradient(135deg, rgba(30, 60, 74, 1), rgba(94, 211, 194, 1));
  font-weight: 900;
  font-size: 1.35rem;
  margin-bottom: 24px;
}

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

.hero-card ul {
  padding-left: 20px;
  margin: 20px 0 0;
}

.hero-card li {
  margin: 12px 0;
}

.section {
  padding: 78px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

.section-heading h2 {
  color: var(--text);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  color: var(--muted);
  font-size: 1.06rem;
}

.timeline {
  display: grid;
  gap: 22px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.timeline-date {
  color: var(--accent);
  font-weight: 800;
  padding-top: 24px;
}

.timeline-content {
  border-radius: 24px;
  padding: 28px;
}

.timeline-content ul {
  padding-left: 20px;
  color: var(--muted);
}

.timeline-content li {
  margin: 10px 0;
}

.project-grid,
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.project-card,
.skill-card,
.education-card,
.contact-card {
  border-radius: 28px;
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.project-card:hover,
.skill-card:hover,
.education-card:hover,
.contact-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 28px 80px rgba(61, 42, 24, 0.18);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(146, 102, 68, 0.12);
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.tech {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.skills-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.skill-card h3 {
  margin-bottom: 14px;
}

.skill-card p,
.education-card p,
.contact-card p {
  color: var(--muted);
  line-height: 1.75;
}

.education-card {
  display: grid;
  gap: 12px;
}

.contact-card {
  display: grid;
  gap: 18px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.contact-links a {
  color: var(--accent-dark);
  font-weight: 700;
}

footer {
  text-align: center;
  padding: 26px 24px 40px;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .hero,
  .about-grid,
  .project-grid,
  .skills-grid,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .timeline-date {
    padding-top: 0;
  }
}

@media (max-width: 720px) {
  .nav {
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-top: 14px;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .hero {
    padding-top: 64px;
  }

  .hero-card,
  .project-card,
  .skill-card,
  .education-card,
  .contact-card,
  .timeline-content {
    padding: 24px;
  }
}


.project-card,
.skill-card,
.education-card {
  border-radius: 24px;
  padding: 26px;
}

.project-card p,
.skill-card p,
.education-card p,
.contact-card p {
  color: var(--muted);
}

.tag {
  display: inline-flex;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 18px;
}

.tech {
  margin-top: 18px;
  color: var(--accent-dark);
  font-weight: 750;
  font-size: 0.92rem;
}

.contact-card {
  border-radius: var(--radius);
  padding: clamp(28px, 5vw, 56px);
  text-align: center;
  background:
    linear-gradient(135deg, rgba(255, 250, 243, 0.92), rgba(234, 217, 197, 0.75));
}

.contact-card h2 {
  max-width: 760px;
  margin: 0 auto;
}

.contact-card p {
  max-width: 660px;
  margin: 20px auto 0;
}

.contact-links {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.contact-links a {
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  font-weight: 750;
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 36px 24px 48px;
}

@media (max-width: 820px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    position: relative;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 62px;
    left: 24px;
    right: 24px;
    flex-direction: column;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface-strong);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .hero,
  .about-grid,
  .timeline-item,
  .project-grid,
  .skills-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  .timeline-date {
    padding-top: 0;
  }
}