:root {
  --bg: #f5efe3;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: #fffaf1;
  --text: #172121;
  --muted: #526060;
  --line: rgba(23, 33, 33, 0.12);
  --accent: #c84c1d;
  --accent-dark: #8f2f11;
  --shadow: 0 24px 70px rgba(34, 28, 20, 0.12);
  --radius: 24px;
  --max-width: 1120px;
  --body-gradient:
    radial-gradient(circle at top left, rgba(200, 76, 29, 0.18), transparent 30%),
    radial-gradient(circle at right, rgba(82, 128, 120, 0.16), transparent 24%),
    linear-gradient(180deg, #f9f5eb 0%, #f3ead9 100%);
  --nav-bg: rgba(255, 250, 241, 0.72);
  --button-secondary-bg: rgba(255, 255, 255, 0.55);
  --project-card-bg: rgba(255, 250, 241, 0.82);
  --project-link-bg: #fff;
  --lightbox-inner-bg: #fffaf1;
}

[data-theme="dark"] {
  --bg: #0f1414;
  --surface: rgba(28, 36, 36, 0.72);
  --surface-strong: #1a2222;
  --text: #ecece4;
  --muted: #9aa6a6;
  --line: rgba(236, 236, 228, 0.14);
  --accent: #ff7a45;
  --accent-dark: #ffb08a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  --body-gradient:
    radial-gradient(circle at top left, rgba(200, 76, 29, 0.22), transparent 30%),
    radial-gradient(circle at right, rgba(82, 128, 120, 0.18), transparent 24%),
    linear-gradient(180deg, #0f1414 0%, #161d1d 100%);
  --nav-bg: rgba(20, 26, 26, 0.72);
  --button-secondary-bg: rgba(236, 236, 228, 0.06);
  --project-card-bg: rgba(28, 36, 36, 0.82);
  --project-link-bg: rgba(236, 236, 228, 0.06);
  --lightbox-inner-bg: #1a2222;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1414;
    --surface: rgba(28, 36, 36, 0.72);
    --surface-strong: #1a2222;
    --text: #ecece4;
    --muted: #9aa6a6;
    --line: rgba(236, 236, 228, 0.14);
    --accent: #ff7a45;
    --accent-dark: #ffb08a;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
    --body-gradient:
      radial-gradient(circle at top left, rgba(200, 76, 29, 0.22), transparent 30%),
      radial-gradient(circle at right, rgba(82, 128, 120, 0.18), transparent 24%),
      linear-gradient(180deg, #0f1414 0%, #161d1d 100%);
    --nav-bg: rgba(20, 26, 26, 0.72);
    --button-secondary-bg: rgba(236, 236, 228, 0.06);
    --project-card-bg: rgba(28, 36, 36, 0.82);
    --project-link-bg: rgba(236, 236, 228, 0.06);
    --lightbox-inner-bg: #1a2222;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background: var(--body-gradient);
}

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

.site-shell {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.hero {
  padding: 7.5rem 0 2rem;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.1rem;
  margin-top: 0.75rem;
  background: var(--nav-bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  position: fixed;
  top: 1rem;
  left: 50%;
  width: min(calc(100% - 2rem), var(--max-width));
  transform: translateX(-50%);
  z-index: 10;
}

.brand,
.hero h1,
.section-heading h2,
.hero-card h2,
.skill-card h3,
.education-card h3,
.timeline-role {
  font-family: "Space Grotesk", sans-serif;
}

.brand {
  font-weight: 700;
  letter-spacing: -0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
}

.nav-links a:hover,
.nav-links a:focus-visible,
.contact-card a:hover,
.contact-card a:focus-visible {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  border-radius: 999px;
}

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
  gap: 1.5rem;
  align-items: stretch;
  padding-top: 4.5rem;
}

.hero-copy,
.hero-card,
.skill-card,
.project-card,
.timeline-item,
.education-card,
.contact-card {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero-copy {
  padding: 2.5rem;
}

.eyebrow,
.section-tag,
.card-label {
  margin: 0 0 1rem;
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  max-width: 10ch;
}

.hero-text,
.section-body,
.timeline-content,
.education-card p,
.contact-card {
  color: var(--muted);
  line-height: 1.7;
}

.hero-text {
  max-width: 60ch;
  margin: 1.5rem 0 0;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  background: var(--accent);
  color: #fff;
}

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

.hero-card {
  padding: 2rem;
  align-self: end;
}

.hero-card h2 {
  margin: 0 0 1rem;
  font-size: 1.8rem;
  letter-spacing: -0.04em;
}

.hero-card ul,
.timeline-content ul {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.section {
  padding: 3rem 0 0;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 1.5rem;
  align-items: start;
}

.section-heading h1,
.section-heading h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.05em;
  line-height: 1;
  font-family: "Space Grotesk", sans-serif;
}

.section-body {
  padding-top: 2rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.projects-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.skill-card,
.project-card,
.education-card,
.contact-card {
  padding: 1.5rem;
}

.skill-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
  letter-spacing: -0.04em;
}

.project-card {
  background: var(--project-card-bg);
}

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.project-kicker {
  margin: 0 0 0.5rem;
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-card h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.5rem;
  letter-spacing: -0.04em;
}

.project-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.project-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.7rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--project-link-bg);
  font-weight: 700;
  white-space: nowrap;
}

.project-link:hover,
.project-link:focus-visible {
  color: var(--accent);
  border-color: rgba(200, 76, 29, 0.3);
}

.timeline {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 1.5rem;
  padding: 1.5rem;
}

.timeline-meta p,
.timeline-content p,
.education-card p {
  margin: 0;
}

.timeline-company {
  font-weight: 700;
  margin-top: 0.3rem;
}

.timeline-period {
  margin-top: 0.4rem;
  color: var(--muted);
}

.timeline-content ul li + li {
  margin-top: 0.45rem;
}

.contact-card {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-top: 1.5rem;
  font-weight: 600;
}

.education-card {
  margin-top: 1.5rem;
}

.education-card p + p {
  margin-top: 0.35rem;
}

.timeline-item,
.skill-card,
.project-card,
.education-card,
.contact-card,
.hero-card,
.hero-copy {
  opacity: 1;
  transform: translateY(0);
}

.js-enabled .timeline-item,
.js-enabled .skill-card,
.js-enabled .project-card,
.js-enabled .education-card,
.js-enabled .contact-card,
.js-enabled .hero-card,
.js-enabled .hero-copy {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (max-width: 920px) {
  .hero-content,
  .section-grid,
  .timeline-item,
  .skills-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: 12ch;
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(calc(100% - 1.25rem), var(--max-width));
  }

  .nav {
    border-radius: 28px;
    align-items: flex-start;
    flex-wrap: wrap;
    width: min(calc(100% - 1.25rem), var(--max-width));
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 0.5rem;
  }

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

  .hero-content {
    padding-top: 2.5rem;
  }

  .hero-copy,
  .hero-card,
  .timeline-item,
  .skill-card,
  .project-card,
  .education-card,
  .contact-card {
    padding: 1.25rem;
  }

  .project-header {
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* Blog pages */
.page-main {
  padding-top: 6rem;
}

/* Blog */
.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 720px;
  margin-top: 2rem;
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
}

.blog-card h3 {
  margin: 0.25rem 0 0.5rem;
  font-size: 1.2rem;
}

.blog-card h3 a {
  color: var(--text);
  text-decoration: none;
}

.blog-card h3 a:hover {
  color: var(--accent);
}

.blog-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.blog-date {
  font-size: 0.8rem;
  color: var(--muted);
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: 0.04em;
}

.post-article {
  max-width: 720px;
}

.post-body {
  line-height: 1.8;
  color: var(--text);
  margin-top: 2rem;
}

.post-body h2 {
  margin-top: 2rem;
}

.post-body pre {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  font-size: 0.9rem;
}

.post-body code {
  font-size: 0.9em;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

.post-body pre code {
  background: none;
  border: none;
  padding: 0;
}

.post-back {
  display: inline-block;
  margin-top: 2.5rem;
}

.post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.post-body th,
.post-body td {
  text-align: left;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--line);
}

.post-body th {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--line);
}

.post-body tr:last-child td {
  border-bottom: none;
}

/* Mermaid lightbox */
.mermaid-zoomable {
  cursor: zoom-in;
  transition: opacity 0.15s;
}

.mermaid-zoomable:hover {
  opacity: 0.85;
}

.mlb {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.88);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  backdrop-filter: blur(4px);
}

.mlb.active {
  opacity: 1;
  pointer-events: all;
}

.mlb-inner {
  background: var(--lightbox-inner-bg);
  border-radius: 16px;
  padding: 2rem;
  width: 88vw;
  height: 80vh;
  overflow: auto;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.4);
}

.mlb-viewport {
  min-width: 480px;
}

.mlb-controls {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 1001;
}

.mlb-btn {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  border-radius: 10px;
  padding: 0.5rem 1.1rem;
  font-size: 1rem;
  font-family: "Space Grotesk", sans-serif;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background 0.15s;
}

.mlb-btn:hover {
  background: rgba(255, 255, 255, 0.22);
}

.mlb-close {
  margin-left: 0.5rem;
  border-color: rgba(200, 76, 29, 0.5);
  color: #f4a98a;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-left: 0.5rem;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--accent);
  border-color: rgba(200, 76, 29, 0.3);
}

.theme-toggle .theme-icon-dark { display: none; }
[data-theme="dark"] .theme-toggle .theme-icon-light { display: none; }
[data-theme="dark"] .theme-toggle .theme-icon-dark { display: inline; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .theme-icon-light { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .theme-icon-dark { display: inline; }
}

@media (max-width: 720px) {
  .theme-toggle {
    margin-left: 0;
    margin-top: 0.5rem;
  }
}