:root {
  color-scheme: dark light;
  --bg: #05030a;
  --bg-alt: #0b0615;
  --text: #f4f6ff;
  --muted: rgba(244, 246, 255, 0.65);
  --accent: #7c5cff;
  --accent-soft: rgba(124, 92, 255, 0.15);
  --border: rgba(124, 92, 255, 0.2);
  --card-bg: rgba(12, 8, 25, 0.75);
  --shadow: 0 20px 45px rgba(12, 5, 35, 0.45);
  --radius: 24px;
  --surface-blur: blur(120px);
  --background-gradient: radial-gradient(
      circle at 20% 20%,
      rgba(124, 92, 255, 0.15),
      transparent 45%
    ),
    radial-gradient(circle at 80% 0%, rgba(0, 168, 255, 0.15), transparent 45%);
  --scroll-progress: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
    sans-serif;
}

* {
  box-sizing: border-box;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

body {
  margin: 0;
  background: var(--background-gradient), var(--bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1.6;
  min-height: 100vh;
  scroll-behavior: smooth;
}

.glow {
  position: fixed;
  inset: -20vh -30vw auto;
  width: 70vw;
  height: 70vw;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.45), transparent 60%);
  filter: var(--surface-blur);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

main,
.site-header,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 24px;
  max-width: 1100px;
  margin: 32px auto 0;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-radius: 24px;
  background: rgba(9, 6, 18, 0.78);
  border: 1px solid rgba(124, 92, 255, 0.35);
  box-shadow: 0 25px 55px rgba(5, 3, 18, 0.55);
  backdrop-filter: blur(24px) saturate(140%);
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.6s ease, background 0.6s ease, border 0.6s ease,
    padding 0.6s ease;
  overflow: hidden;
}

.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
      circle at 15% -20%,
      rgba(124, 92, 255, 0.4),
      transparent 55%
    ),
    radial-gradient(circle at 85% 120%, rgba(0, 168, 255, 0.35), transparent 55%);
  opacity: 0.85;
  mix-blend-mode: screen;
}

.site-header::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 12px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #00a8ff);
  transform: scaleX(var(--scroll-progress));
  transform-origin: left;
  opacity: 0.65;
  transition: opacity 0.6s ease;
}

.site-header.is-condensed {
  padding: 12px 24px;
  background: rgba(9, 6, 18, 0.9);
  box-shadow: 0 20px 60px rgba(5, 3, 18, 0.65);
  border-color: rgba(124, 92, 255, 0.5);
}

.site-header[data-scroll-direction='down'] {
  transform: translateY(8px);
}

.site-header[data-scroll-direction='up'] {
  transform: translateY(0);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.logo {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), #00a8ff);
  color: #04010a;
  font-weight: 700;
  font-size: 1.15rem;
}

.site-nav {
  display: flex;
  gap: 24px;
  align-items: center;
}

.site-nav a {
  position: relative;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 0.3s ease;
}

.site-nav a[aria-current='page'],
.site-nav a[aria-current='section'] {
  color: var(--text);
}

.site-nav a:hover,
.site-nav a:focus {
  color: var(--text);
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), #00a8ff);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
  opacity: 0.75;
}

.site-nav a:hover::after,
.site-nav a:focus::after,
.site-nav a[aria-current='page']::after,
.site-nav a[aria-current='section']::after {
  transform: scaleX(1);
}

.theme-toggle {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.theme-toggle:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  max-width: 1100px;
  margin: 120px auto 0;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 48px;
  align-items: center;
}

.eyebrow {
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.8rem, 5vw, 3.6rem);
  line-height: 1.1;
  margin: 0 0 24px;
}

.lede {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

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

.button {
  border-radius: 999px;
  padding: 14px 28px;
  font-weight: 600;
  border: 1px solid transparent;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), #00a8ff);
  color: #04010a;
  box-shadow: 0 20px 35px rgba(0, 168, 255, 0.25);
}

.button.ghost {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
}

.button:hover {
  transform: translateY(-3px);
}

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

.portrait-frame {
  width: clamp(260px, 32vw, 340px);
  aspect-ratio: 3 / 4;
  border-radius: calc(var(--radius) * 1.35);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(124, 92, 255, 0.35), rgba(0, 168, 255, 0.25));
  padding: 16px;
  position: relative;
  box-shadow: var(--shadow);
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius) * 1.1);
  mix-blend-mode: lighten;
}

section {
  max-width: 1100px;
  margin: 120px auto 0;
  padding: 0 32px;
}

section h2 {
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  margin-bottom: 24px;
}

.about-content {
  column-count: 2;
  column-gap: 32px;
  color: var(--muted);
}

.quick-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 40px 0 0;
}

.quick-facts div {
  padding: 20px;
  border-radius: var(--radius);
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow);
}

.quick-facts dt {
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.quick-facts dd {
  margin: 0;
  color: var(--muted);
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--muted);
  max-width: 640px;
}

.blog {
  position: relative;
}

.blog-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.blog-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.blog-card h3 {
  margin: 0;
  font-size: 1.25rem;
}

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

.blog-card a {
  align-self: flex-start;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
}

.blog-card a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: linear-gradient(135deg, var(--accent), #00a8ff);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.blog-card a:hover::after {
  transform: scaleX(1);
}

.blog-empty {
  margin-top: 32px;
  color: var(--muted);
  text-align: center;
}

.blog-hero {
  max-width: 820px;
  margin: 140px auto 0;
  padding: 0 32px;
}

.blog-hero .hero-actions {
  margin-top: 32px;
}

.blog-listing {
  display: grid;
  gap: 32px;
  margin: 80px auto 0;
  padding: 0 32px 120px;
  max-width: 1100px;
}

.blog-card__meta {
  margin: 0;
  color: rgba(244, 246, 255, 0.6);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.timeline {
  margin-top: 48px;
  display: grid;
  gap: 28px;
}

.auth-main {
  min-height: calc(100vh - 320px);
  display: grid;
  place-items: center;
  padding: 80px 32px 120px;
}

.auth-card {
  width: min(440px, 100%);
  padding: 48px;
  border-radius: calc(var(--radius) * 1.1);
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  display: grid;
  gap: 24px;
}

.auth-card h1 {
  margin: 0;
  font-size: 2rem;
}

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

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

.auth-card label {
  display: grid;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--muted);
}

.auth-card input {
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
}

.auth-card input:focus {
  outline: 2px solid rgba(124, 92, 255, 0.4);
  outline-offset: 0;
}

.auth-hint {
  font-size: 0.9rem;
  color: rgba(244, 246, 255, 0.6);
}

.timeline-item {
  position: relative;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow);
}

.timeline-item::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.7), rgba(0, 168, 255, 0.2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.timeline header h3 {
  margin: 0 0 4px;
  font-size: 1.35rem;
}

.timeline .meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.timeline ul {
  margin: 18px 0 0;
  padding-left: 20px;
  color: var(--muted);
  display: grid;
  gap: 10px;
}

.projects .project-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.project-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.project-card h3 {
  margin: 0;
  font-size: 1.3rem;
}

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

.project-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.project-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
}

.project-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: linear-gradient(135deg, var(--accent), #00a8ff);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.project-links a:hover::after {
  transform: scaleX(1);
}

.skills-content {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
}

.skills-content h3 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.skills-content ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  display: grid;
  gap: 10px;
}

.contact {
  display: flex;
  justify-content: center;
}

.contact-card {
  max-width: 720px;
  width: 100%;
  padding: 48px;
  border-radius: calc(var(--radius) * 1.1);
  background: linear-gradient(135deg, rgba(12, 6, 25, 0.75), rgba(8, 18, 40, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  text-align: center;
}

.contact-card p {
  color: var(--muted);
  margin: 0 auto 32px;
  max-width: 540px;
}

.contact-grid {
  display: grid;
  gap: 16px;
  justify-items: center;
}

.contact-link {
  width: min(100%, 420px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 24px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: transform 0.3s ease, background 0.3s ease;
}

.contact-link:hover {
  transform: translateY(-2px);
  background: rgba(124, 92, 255, 0.12);
}

.contact-link--icon-only {
  width: auto;
  min-width: 64px;
  padding: 16px;
  border-radius: 50%;
}

.contact-link--icon-only .material-symbols-outlined {
  margin: 0;
}

.admin-main {
  max-width: 1100px;
  margin: 120px auto 120px;
  padding: 0 32px;
  display: grid;
  gap: 80px;
}

.admin-welcome {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: flex-start;
  justify-content: space-between;
}

.admin-welcome > div {
  flex: 1;
  min-width: 260px;
}

.admin-overview__grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.admin-data-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.admin-data-card h3 {
  margin: 0;
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(244, 246, 255, 0.7);
}

.admin-data-card__value {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
}

.admin-data-card__helper {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.admin-blog-panel {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  align-items: start;
}

.admin-blog__form,
.admin-blog__list {
  padding: 32px;
  border-radius: var(--radius);
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  display: grid;
  gap: 24px;
}

.admin-blog__form form {
  display: grid;
  gap: 18px;
}

.admin-blog__form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

.admin-blog__form input,
.admin-blog__form textarea {
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  resize: vertical;
}

.admin-blog__form input:focus,
.admin-blog__form textarea:focus {
  outline: 2px solid rgba(124, 92, 255, 0.4);
  outline-offset: 0;
}

.admin-blog__empty {
  margin: 0;
  color: rgba(244, 246, 255, 0.65);
}

.admin-blog__list .blog-grid {
  margin-top: 0;
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.site-footer {
  max-width: 1100px;
  margin: 80px auto 60px;
  padding: 0 32px;
  color: var(--muted);
  text-align: center;
}

.admin-access {
  margin-left: 12px;
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px dotted rgba(255, 255, 255, 0.25);
  transition: color 0.3s ease, border-color 0.3s ease;
}

.admin-access:hover,
.admin-access:focus-visible {
  color: var(--text);
  border-color: rgba(124, 92, 255, 0.6);
}

.form-error {
  margin: 0;
  color: #ff7a7a;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .site-header {
    top: 16px;
    padding: 16px 22px;
  }

  .site-header::after {
    bottom: 10px;
  }

  .about-content {
    column-count: 1;
  }
}

@media (max-width: 720px) {
  .site-header {
    flex-wrap: wrap;
    gap: 16px;
  }

  .site-nav {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero {
    margin-top: 80px;
  }

  .blog-hero {
    margin-top: 110px;
    padding: 0 20px;
  }

  .blog-listing {
    margin-top: 60px;
    padding: 0 20px 80px;
  }

  .auth-card {
    padding: 36px;
  }

  .admin-main {
    margin: 60px auto 100px;
    padding: 0 20px;
  }

  .admin-blog__form,
  .admin-blog__list {
    padding: 24px;
  }
}

@media (max-width: 640px) {
  .site-nav {
    gap: 12px;
  }

  .site-nav a::after {
    bottom: -4px;
  }
}

body[data-theme='light'] {
  --bg: #f4f5fa;
  --bg-alt: #ffffff;
  --text: #1c1232;
  --muted: rgba(28, 18, 50, 0.65);
  --card-bg: rgba(255, 255, 255, 0.85);
  --border: rgba(124, 92, 255, 0.25);
  --shadow: 0 14px 30px rgba(28, 18, 50, 0.12);
  --surface-blur: blur(160px);
  --background-gradient: radial-gradient(
      circle at 20% 20%,
      rgba(124, 92, 255, 0.25),
      transparent 45%
    ),
    radial-gradient(circle at 80% 0%, rgba(0, 168, 255, 0.2), transparent 45%);
}

body[data-theme='light'] .theme-toggle {
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(124, 92, 255, 0.25);
  color: var(--text);
}