:root {
  --bg: #081b33;
  --panel: rgba(12, 32, 61, 0.95);
  --surface: #112545;
  --text: #eef5ff;
  --muted: #9bb7d6;
  --accent: #4ea7ff;
  --accent-soft: rgba(78, 167, 255, 0.18);
  --shadow: 0 24px 80px rgba(3, 20, 45, 0.25);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
  background: radial-gradient(circle at top left, rgba(78, 167, 255, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(70, 118, 255, 0.12), transparent 25%),
    #061223;
  color: var(--text);
}

body {
  line-height: 1.6;
}

.page-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.brand {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 0;
  transition: color 0.2s ease;
}

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

.page-intro {
  margin-bottom: 40px;
}

.page-intro h1 {
  font-size: clamp(2.75rem, 4vw, 4.5rem);
  margin: 0;
  line-height: 1.02;
}

.feature-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-bottom: 48px;
}

.feature-card {
  background: rgba(11, 26, 51, 0.95);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 28px;
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform 0.35s ease, border-color 0.35s ease;
}

.feature-card:hover {
  border-color: rgba(78, 167, 255, 0.35);
  transform: translateY(-4px);
}

.feature-card h3 {
  margin-top: 12px;
  font-size: 1.45rem;
}

.page-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.hero-section {
  display: grid;
  gap: 32px;
  padding: 48px 0 72px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent);
  font-size: 0.77rem;
  margin-bottom: 16px;
}

.hero-copy h1,
.section-heading h2 {
  font-size: clamp(2.75rem, 3.75vw, 4.75rem);
  margin: 0;
  line-height: 0.98;
}

.hero-copy .intro,
.section-heading p,
.project-card p,
.resume-card p,
.github-card p,
.site-footer p {
  color: var(--muted);
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 24px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--accent), #87beff);
  color: #061223;
  box-shadow: 0 18px 38px rgba(78, 167, 255, 0.24);
}

.button-secondary {
  border: 1px solid rgba(78, 167, 255, 0.35);
  color: var(--text);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.visual-card {
  width: min(100%, 560px);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.03));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 32px;
  padding: 32px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.visual-card::before {
  content: "";
  position: absolute;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  top: -70px;
  right: -60px;
  background: rgba(78, 167, 255, 0.14);
}

.visual-tag,
.project-label {
  display: inline-block;
  background: rgba(78, 167, 255, 0.16);
  color: #d4e6ff;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.82rem;
  margin-bottom: 18px;
}

.visual-title {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.visual-text {
  color: var(--muted);
  margin-bottom: 24px;
}

.visual-placeholder {
  min-height: 220px;
  border-radius: 24px;
  border: 1px dashed rgba(255,255,255,0.18);
  display: grid;
  place-items: center;
  color: rgba(255,255,255,0.65);
  background: rgba(255,255,255,0.03);
  text-align: center;
  font-size: 0.98rem;
  padding: 18px;
}

.visual-placeholder img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 20px;
}

.visual-images {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

@media (max-width: 800px) {
  .visual-images {
    grid-template-columns: 1fr;
  }
}

.section-heading {
  margin: 60px 0 24px;
}

.section-heading h2 {
  font-size: clamp(2rem, 3vw, 3.4rem);
  line-height: 1.05;
}

.projects-grid,
.resume-grid {
  display: grid;
  gap: 24px;
}

.projects-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.skills-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.skill-item {
  background: rgba(11, 26, 51, 0.95);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 28px;
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform 0.35s ease, border-color 0.35s ease;
  text-align: center;
}

.skill-item:hover {
  border-color: rgba(78, 167, 255, 0.35);
  transform: translateY(-4px);
}

.skill-item h4 {
  margin: 0 0 12px;
  font-size: 1.2rem;
  color: var(--accent);
}

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

.about-section {
  margin: 60px 0 24px;
}

.about-content {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.about-content p {
  font-size: 1.1rem;
  line-height: 1.7;
}

.project-card,
.resume-card,
.github-card,
.skill-item,
.contact-card {
  background: rgba(11, 26, 51, 0.95);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 28px;
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform 0.35s ease, border-color 0.35s ease;
}

.project-card:hover,
.resume-card:hover,
.github-card:hover,
.skill-item:hover,
.contact-card:hover {
  border-color: rgba(78, 167, 255, 0.35);
  transform: translateY(-4px);
}

.project-card h3,
.resume-card h3,
.github-card h3,
.contact-card h3 {
  margin: 14px 0 14px;
  font-size: 1.4rem;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--accent);
  font-weight: 600;
  margin-top: 18px;
}

.resume-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.upload-input {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  cursor: pointer;
  background: rgba(78, 167, 255, 0.12);
  border: 1px solid rgba(78, 167, 255, 0.32);
  padding: 14px 18px;
  border-radius: 999px;
  color: var(--text);
  font-weight: 600;
}

.upload-input input {
  display: none;
}

.file-info {
  margin-top: 14px;
  color: var(--muted);
}

.download-link,
.github-button {
  display: inline-flex;
  margin-top: 18px;
  padding: 14px 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.25s ease, transform 0.25s ease;
}

.download-link {
  background: rgba(78, 167, 255, 0.18);
  color: var(--text);
}

.github-button {
  background: var(--accent);
  color: #061223;
}

.download-link:hover,
.github-button:hover {
  transform: translateY(-2px);
}

.contact-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.contact-links a {
  display: inline-flex;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  background: rgba(78, 167, 255, 0.18);
  color: var(--text);
  transition: background 0.25s ease, transform 0.25s ease;
}

.contact-links a:hover {
  background: rgba(78, 167, 255, 0.35);
  transform: translateY(-2px);
}

.site-footer {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
  color: var(--muted);
}

@media (max-width: 860px) {
  .hero-section {
    padding-top: 32px;
  }

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

@media (max-width: 640px) {
  .page-shell {
    padding: 28px 18px 40px;
  }

  .hero-copy h1,
  .section-heading h2 {
    font-size: 2.6rem;
  }
}

.animate-pop {
  opacity: 0;
  transform: translateY(18px) scale(0.98);
  animation: popIn 0.8s forwards ease-out;
}

.animate-pop.delay-1 {
  animation-delay: 0.15s;
}

.animate-pop.delay-2 {
  animation-delay: 0.3s;
}

.animate-pop.delay-3 {
  animation-delay: 0.45s;
}

.animate-fade {
  opacity: 0;
  transform: translateY(12px);
  animation: fadeIn 0.95s forwards ease-out;
}

.animate-fade.delay-1 {
  animation-delay: 0.12s;
}

@keyframes popIn {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}