:root {
  color-scheme: light dark;
  --bg: #f5f7fb;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --text: #111827;
  --muted: #5b6474;
  --border: rgba(17, 24, 39, 0.1);
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
  --radius: 24px;
  --radius-sm: 16px;
  --container: min(1120px, calc(100vw - 2rem));
  --header-height: 72px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #090c12;
    --surface: rgba(11, 17, 27, 0.82);
    --surface-strong: #101826;
    --text: #e5ecf6;
    --muted: #98a4b8;
    --border: rgba(148, 163, 184, 0.18);
    --accent: #7dd3fc;
    --accent-soft: rgba(125, 211, 252, 0.14);
    --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent 24%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

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

p,
ul {
  margin: 0;
}

main {
  display: block;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 1rem;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 180ms ease;
}

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

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
}

.section {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
}

.surface {
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.hero {
  padding-top: clamp(5rem, 10vw, 8rem);
}

.hero-card,
.content-card,
.profile-card,
.portfolio-card,
.media-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: clamp(2rem, 4vw, 4rem);
  position: relative;
  overflow: hidden;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: auto -10% -35% auto;
  width: min(420px, 70vw);
  aspect-ratio: 1;
  border-radius: 999px;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

h1 {
  max-width: 12ch;
  font-size: clamp(2.6rem, 8vw, 5.3rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

h4 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.hero-copy,
.section-heading p,
.muted,
.portfolio-body p,
.content-card p {
  color: var(--muted);
}

.hero-copy {
  max-width: 58ch;
  margin-top: 1.25rem;
  font-size: 1.05rem;
}

.hero-meta,
.social-links,
.hero-actions,
.footer-links,
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero-meta {
  margin-top: 1.5rem;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--text);
  font-size: 0.92rem;
}

.hero-meta i,
.info-item i {
  width: 16px;
  height: 16px;
}

.hero-actions {
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.8rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
}

.button-primary {
  background: var(--text);
  color: var(--surface-strong);
}

.button-secondary {
  border-color: var(--border);
  background: transparent;
}

.social-links {
  margin-top: 1.5rem;
}

.social-links a,
.footer-links a {
  color: var(--muted);
  transition: color 180ms ease;
}

.social-links a:hover,
.footer-links a:hover,
.content-card a:hover,
.breadcrumb a:hover {
  color: var(--accent);
}

.section-heading {
  max-width: 52rem;
  margin-bottom: 2rem;
}

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

.about-grid,
.contact-grid,
.project-layout,
.resume-grid {
  grid-template-columns: 1fr;
}

.profile-card {
  overflow: hidden;
}

.profile-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 100%;
}

.content-card {
  padding: 1.5rem;
}

.card-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.info-grid,
.meta-list {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.info-item,
.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.info-item span,
.meta-item span,
.timeline-meta,
.card-tag {
  color: var(--muted);
  font-size: 0.86rem;
}

.skills-grid,
.portfolio-grid {
  display: grid;
  gap: 1rem;
}

.skill-card {
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.skill-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
  margin-bottom: 0.7rem;
}

.skill-bar {
  height: 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--border) 60%, transparent);
  overflow: hidden;
}

.skill-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 55%, white));
}

.stack {
  display: grid;
  gap: 1.5rem;
}

.timeline-item + .timeline-item {
  margin-top: 1.6rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--border);
}

.plain-list {
  padding-left: 1.2rem;
}

.plain-list li + li {
  margin-top: 0.65rem;
}

.portfolio-card {
  display: block;
  overflow: hidden;
  transition: transform 220ms ease, border-color 220ms ease;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 32%, var(--border));
}

.portfolio-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 16%, transparent), transparent),
    color-mix(in srgb, var(--surface-strong) 90%, transparent);
}

.portfolio-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-body {
  padding: 1.25rem;
}

.portfolio-body h3 {
  margin-bottom: 0.75rem;
}

.breadcrumb {
  margin-bottom: 1.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.project-layout {
  align-items: start;
}

.media-card {
  overflow: hidden;
}

.media-card img {
  width: 100%;
  height: auto;
}

.site-footer {
  padding: 1.5rem 0 2.5rem;
}

.footer-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (min-width: 700px) {
  .info-grid,
  .meta-list,
  .skills-grid,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-wrap,
  .card-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.2fr);
  }

  .resume-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .project-layout {
    grid-template-columns: minmax(0, 0.92fr) minmax(320px, 0.85fr);
  }

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

@media (max-width: 819px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 1rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--surface-strong);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.8rem 0.9rem;
    border-radius: 12px;
  }

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

/* Blog status */
.arlo-status {
  margin-top: 1rem;
  padding: 0.8rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--muted);
  font-size: 0.95rem;
  font-style: italic;
  line-height: 1.5;
}

.arlo-status-label {
  font-weight: 700;
  font-style: normal;
  color: var(--accent);
}

/* Blog feed */
.blog-feed {
  display: grid;
  gap: 1.25rem;
}

.blog-post {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.blog-post-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.blog-tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}

.blog-tag:hover,
.blog-tag.is-active {
  background: var(--accent);
  color: var(--surface-strong);
}

.blog-mood {
  font-size: 1.1rem;
  margin-right: 0.4rem;
  vertical-align: middle;
}

.blog-summary {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
}

.blog-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms ease;
}

.blog-body.is-open {
  grid-template-rows: 1fr;
}

.blog-body-inner {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
  padding-top: 0.25rem;
}

.blog-toggle {
  align-self: flex-start;
  font-size: 0.88rem;
  min-height: 38px;
  padding: 0.55rem 1rem;
}

/* Blog body markdown */
.blog-body-inner p {
  margin: 0 0 0.6rem 0;
}

.blog-body-inner ul {
  padding-left: 1.2rem;
  margin: 0.5rem 0 0.6rem 0;
}

.blog-body-inner li {
  margin-bottom: 0.35rem;
}

.blog-body-inner code {
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
  background: var(--accent-soft);
  font-size: 0.9em;
}

.blog-body-inner a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Blog stats */
.blog-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
}

.blog-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
}

.blog-stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.blog-stat-label {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-blog-link {
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
  color: var(--accent) !important;
  font-weight: 700;
  letter-spacing: 0.01em;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.nav-blog-link:hover {
  background: var(--accent);
  color: var(--surface-strong) !important;
  border-color: var(--accent);
}

/* Approach grid */
.approach-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.approach-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 220ms ease;
  position: relative;
  overflow: hidden;
}

.approach-card:hover {
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
}

.approach-card .approach-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  min-height: 40px;
}

.approach-card h3 {
  white-space: nowrap;

.approach-card .approach-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 400ms ease, opacity 400ms ease;
  opacity: 0;
  margin-top: 0;
}

.approach-card.is-revealed .approach-body {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 0.75rem;
}

.approach-card:nth-child(2).is-revealed .approach-body { transition-delay: 100ms; }
.approach-card:nth-child(3).is-revealed .approach-body { transition-delay: 200ms; }
.approach-card:nth-child(4).is-revealed .approach-body { transition-delay: 300ms; }

.approach-body-inner {
  overflow: hidden;
}

.approach-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
}

.approach-icon i {
  width: 20px;
  height: 20px;
}

.approach-card h3 {
  font-size: 1rem;
  margin: 0;
}

.approach-card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

.approach-divider {
  height: 1px;
  background: var(--border);
  margin: 2rem 0;
}

@media (min-width: 600px) {
  .approach-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .approach-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .portfolio-card {
    transition: none;
  }
}