:root {
  --bg: #f4f7f5;
  --bg-soft: #e9f0ec;
  --surface: #ffffff;
  --surface-strong: #f9fbfa;
  --ink: #10201c;
  --ink-soft: #253c36;
  --muted: #60716c;
  --muted-strong: #40524d;
  --accent: #0f766e;
  --accent-strong: #104e64;
  --accent-warm: #c85632;
  --border: #d6ddd8;
  --border-strong: #91b8ad;
  --terminal: #101820;
  --terminal-soft: #182722;
  --shadow: 0 18px 48px rgba(16, 32, 28, 0.08);
  --max-width: 1180px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Instrument Sans", sans-serif;
  line-height: 1.6;
  background: linear-gradient(180deg, var(--bg) 0%, #eef4f1 52%, #f8faf9 100%);
}

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

a,
button,
summary {
  transition: transform 160ms ease, opacity 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

a:hover {
  transform: translateY(-1px);
}

button {
  font: inherit;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.site-shell {
  position: relative;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 24px 0 52px;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 14px 16px;
  margin-bottom: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-photo {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.brand-name,
.brand-role {
  display: block;
}

.brand-name {
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-role {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  padding: 9px 14px;
  border-radius: var(--radius);
  color: var(--muted-strong);
  font-weight: 600;
}

.nav-link:hover,
.nav-link.active {
  color: var(--ink);
  background: var(--bg-soft);
}

.hero {
  display: grid;
  gap: 28px;
  align-items: stretch;
}

.hero-simple {
  gap: 0;
  padding: 56px 0 8px;
}

.hero-simple h1 {
  max-width: 20ch;
}

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

.micro-label {
  color: var(--muted);
}

h1,
h2,
h3,
.brand-name {
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.04;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 17ch;
  font-size: 3.55rem;
}

h2 {
  margin: 0;
  font-size: 2.35rem;
}

h3 {
  margin: 0;
  font-size: 1.45rem;
}

.hero-text,
.project-card p,
.timeline-item p,
.section-note,
.contact-copy p,
.sidebar-card p,
.detail-list,
.project-summary {
  color: var(--muted);
  line-height: 1.72;
}

.hero-text,
.project-card p,
.timeline-item p,
.section-note,
.sidebar-card p,
.contact-copy p {
  max-width: 68ch;
}

.hero-text-strong {
  color: var(--muted-strong);
  margin: 18px 0 0;
  font-size: 1.08rem;
  max-width: 58ch;
}

.max-copy {
  max-width: 760px;
}

.hero-actions,
.contact-actions,
.project-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.skill-clusters span,
.tag-list li {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero-actions {
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 11px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 800;
}

.button-primary {
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.18);
}

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

.button:hover,
.text-link:hover,
.nav-link:hover {
  opacity: 0.94;
}

.section {
  margin-top: 58px;
}

.section-offset {
  margin-top: 26px;
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-heading-tight {
  margin-bottom: 22px;
}

.section-note {
  max-width: 420px;
  margin: 0;
}

.system-section,
.timeline-item,
.project-card,
.sidebar-card,
.contact-row,
.skill-map {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.system-section,
.skill-map {
  padding: 28px;
}

.flow-board {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.2fr) minmax(220px, 0.78fr);
  gap: 18px;
  align-items: stretch;
}

.flow-steps {
  display: grid;
  gap: 12px;
}

.flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  width: 100%;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--ink);
  text-align: left;
  background: var(--surface-strong);
  cursor: pointer;
}

.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 35px;
  bottom: -13px;
  width: 2px;
  height: 12px;
  background: var(--border-strong);
}

.flow-step strong,
.flow-step small {
  display: block;
}

.flow-step small {
  grid-column: 2;
  color: var(--muted);
  font-size: 0.9rem;
}

.flow-step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  color: var(--accent);
  background: #e2f0ed;
  font-weight: 900;
}

.flow-step.is-active {
  border-color: var(--accent);
  background: #e8f5f1;
}

.flow-panel {
  min-height: 100%;
  padding: 24px;
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.flow-panel p {
  color: var(--muted-strong);
}

.flow-log {
  padding: 20px;
  border-radius: var(--radius);
  color: #dff7ef;
  background: var(--terminal);
}

.flow-log ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.9rem;
}

.flow-log li::before {
  content: "> ";
  color: #f0c071;
}

.flow-log .micro-label {
  color: #9dbab1;
}

.project-summary {
  margin: 0;
  font-size: 1.04rem;
}

.project-details {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.project-details summary {
  color: var(--ink);
  cursor: pointer;
  font-weight: 900;
}

.workflow-list,
.project-points,
.detail-list,
.tag-list,
.compact-list {
  margin: 0;
  padding-left: 18px;
}

.workflow-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  color: var(--muted-strong);
}

.project-points li,
.detail-list li {
  margin-bottom: 10px;
  color: var(--ink-soft);
  line-height: 1.62;
}

.project-actions {
  margin-top: auto;
}

.text-link {
  color: var(--accent);
  font-weight: 900;
}

.project-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.82fr);
  gap: 28px;
}

.timeline,
.sidebar-stack,
.project-grid,
.project-grid-featured,
.contact-stack {
  display: grid;
  gap: 18px;
}

.timeline {
  margin-top: 22px;
}

.timeline-item,
.project-card,
.sidebar-card,
.contact-row {
  padding: 22px;
}

.timeline-item h2,
.timeline-item h3 {
  font-size: 1.35rem;
}

.timeline-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.skill-map {
  align-self: start;
}

.skill-map h2 {
  font-size: 1.8rem;
}

.skill-stage-tabs {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.skill-stage {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--ink);
  text-align: left;
  background: var(--surface-strong);
  cursor: pointer;
  font-weight: 800;
}

.skill-stage.is-active {
  border-color: var(--accent);
  background: #e8f5f1;
}

.skill-map-panel {
  margin-top: 16px;
  padding: 18px;
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.skill-map-panel p {
  color: var(--muted-strong);
}

.skill-clusters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.skill-thread {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.88rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  list-style: none;
}

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

.project-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.project-grid-secondary {
  margin-top: 22px;
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.thinking-card {
  background: var(--surface-strong);
}

.compact-section {
  padding: 0;
}

.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.contact-copy {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.contact-copy h2 {
  font-size: 1.65rem;
  line-height: 1.12;
}

.contact-copy p:last-child {
  margin: 0;
}

.contact-action {
  min-width: 180px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 42px 4px 0;
  color: var(--muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--muted-strong);
  font-weight: 700;
}

.social-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex: 0 0 auto;
}

.fade-in,
.fade-in-delay,
.fade-in-delay-2 {
  opacity: 1;
  transform: none;
  animation: none;
}

@media (max-width: 1080px) {
  .two-column {
    grid-template-columns: 1fr;
  }

  .flow-board {
    grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.2fr);
  }

  .flow-log {
    grid-column: 1 / -1;
  }

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

@media (max-width: 820px) {
  .section-heading-row,
  .site-footer,
  .site-header,
  .contact-row {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    max-width: 14ch;
    font-size: 3.2rem;
  }

  h2 {
    font-size: 2rem;
  }

  .site-nav {
    width: 100%;
    gap: 8px;
  }

  .flow-board {
    grid-template-columns: 1fr;
  }

  .flow-step:not(:last-child)::after {
    display: none;
  }

  .contact-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .footer-links,
  .social-links {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(calc(100% - 32px), var(--max-width));
    padding-top: 14px;
  }

  .site-header,
  .system-section,
  .skill-map,
  .project-card,
  .sidebar-card,
  .contact-row,
  .timeline-item {
    padding: 18px;
  }

  .brand-photo {
    width: 54px;
    height: 54px;
  }

  .brand {
    width: 100%;
  }

  .brand-name {
    font-size: 1rem;
  }

  .brand-role {
    font-size: 0.88rem;
  }

  h1 {
    max-width: none;
    font-size: 2.15rem;
    line-height: 1.02;
  }

  h2 {
    font-size: 1.8rem;
    line-height: 1.08;
  }

  .site-header {
    gap: 14px;
  }

  .site-nav {
    flex-wrap: nowrap;
    gap: 4px;
  }

  .nav-link {
    flex: 1 1 auto;
    text-align: center;
    padding: 9px 10px;
    font-size: 0.95rem;
  }

  .hero-simple {
    padding: 8px 4px 0;
  }

  .hero-simple .hero-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .hero-simple .button-primary {
    grid-column: 1 / -1;
  }

  .contact-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-text-strong {
    line-height: 1.55;
  }

  .contact-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-action {
    width: 100%;
    min-width: 0;
  }

  .project-grid,
  .project-grid-featured {
    grid-template-columns: 1fr;
  }

  .workflow-list,
  .project-points,
  .detail-list,
  .compact-list {
    padding-left: 16px;
  }
}