/* ============ Theme tokens ============ */
:root,
[data-mode="dark"] {
  --bg: #160f10;
  --bg-raised: #1d1516;
  --panel: #211619;
  --panel-border: rgba(243, 233, 233, 0.10);
  --line: rgba(243, 233, 233, 0.10);
  --ink: #f3e9e9;
  --ink-dim: #c7aeae;
  --ink-faint: #987f7f;
  --accent: #c1616a;
  --accent-ink: #160e0f;
  --hover-tint: rgba(243,233,233,0.04);
}

[data-mode="light"] {
  --bg: #e0bcb5;
  --bg-raised: #d8aca4;
  --panel: #f2ddd8;
  --panel-border: rgba(31, 18, 19, 0.14);
  --line: rgba(31, 18, 19, 0.14);
  --ink: #1f1213;
  --ink-dim: #5e4144;
  --ink-faint: #644849;
  --accent: #8c2f37;
  --accent-ink: #fbf4f4;
  --hover-tint: rgba(31,18,19,0.055);
}

:root {
  --display: "Bricolage Grotesque", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --topbar-h: 76px;
}

body { transition: background-color 0.25s ease, color 0.25s ease; }
.topbar, .panel, .home-readout, .case-card, .contact-link {
  transition: background-color 0.25s ease, border-color 0.25s ease, opacity 0.3s ease;
}

/* ---------- Mode toggle ---------- */
.mode-toggle {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  color: var(--ink-dim);
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.mode-toggle:hover { color: var(--ink); border-color: var(--ink-faint); }

.icon-sun, .icon-moon { display: none; }
[data-mode="dark"] .icon-sun { display: block; }
[data-mode="light"] .icon-moon { display: block; }

* { box-sizing: border-box; }

html, body {
  min-height: 100%;
  margin: 0;
  overflow-x: hidden;
  overflow-y: auto;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--display);
  -webkit-font-smoothing: antialiased;
  position: relative;
}

.frame {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ---------- Top bar ---------- */
.topbar {
  height: var(--topbar-h);
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-raised);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 180px;
}

.brand-mark {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
}

.brand-sub {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.tabs {
  display: flex;
  gap: 4px;
  background: var(--hover-tint);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 4px;
}

.tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--ink-dim);
  font-family: var(--display);
  font-size: 0.86rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 7px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}

.tab-index {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  transition: color 0.2s ease;
}

.tab:hover { color: var(--ink); }

.tab.is-active {
  color: var(--accent-ink);
  background: var(--accent);
}

.tab.is-active .tab-index { color: var(--accent-ink); opacity: 0.6; }

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-faint);
  flex: 0 0 auto;
  min-width: 180px;
  justify-content: flex-end;
}

/* ---------- Stage / panels ---------- */
.stage {
  flex: 1 1 auto;
  position: relative;
  overflow: visible;
}

.panel {
  position: relative;
  min-height: calc(100vh - var(--topbar-h));
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
  overflow: visible;
  padding: clamp(20px, 4vh, 40px) clamp(22px, 3.4vw, 48px) clamp(16px, 3vh, 32px);
  display: none;
}

.panel.is-active {
  display: flex;
  opacity: 1;
  visibility: visible;
}

.panel-grid {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.panel-grid--single {
  justify-content: flex-start;
  padding-top: clamp(4px, 1vh, 8px);
  gap: clamp(10px, 2vh, 20px);
}
.panel-grid--center { justify-content: center; align-items: flex-start; }

/* ---------- Home ---------- */
.home-main {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.86rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin: 0 0 20px;
}

.home-title {
  font-size: clamp(2.6rem, 5.4vw, 4.6rem);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 22px;
}

.home-lede {
  max-width: 42ch;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink-dim);
  margin: 0 0 34px;
}

.home-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.work-actions { margin-bottom: 24px; }
a.btn-ghost { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }

.btn-primary {
  appearance: none;
  border: none;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.94rem;
  padding: 13px 22px;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn-primary:hover { transform: translateY(-1px); filter: brightness(1.1); }
.btn-arrow { transition: transform 0.2s ease; }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }

.btn-ghost {
  appearance: none;
  background: transparent;
  border: 1px solid var(--panel-border);
  color: var(--ink);
  font-family: var(--display);
  font-size: 0.94rem;
  font-weight: 500;
  padding: 13px 22px;
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.btn-ghost:hover { border-color: var(--ink-faint); background: var(--hover-tint); }

.home-readout {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 26px;
}

.readout-label {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--ink-faint);
  letter-spacing: 0.03em;
  margin-bottom: 18px;
}

.readout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 32px;
}

.readout-cell { display: flex; flex-direction: column; gap: 8px; }

.readout-num {
  font-family: var(--mono);
  font-size: 1.7rem;
  font-weight: 500;
  color: var(--ink);
}

.readout-tag {
  font-size: 0.78rem;
  color: var(--ink-faint);
  line-height: 1.3;
}

.readout-footer {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-dim);
}

/* ---------- Section scaffolding ---------- */
.section-kicker {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin: 0 0 clamp(6px, 1.2vh, 12px);
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 clamp(14px, 2.6vh, 32px);
  max-width: 32ch;
}

/* ---------- About ---------- */
.about-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(20px, 3vw, 48px);
  margin-bottom: clamp(16px, 3vh, 40px);
  min-height: 0;
}

.about-lede {
  font-size: clamp(0.85rem, 1.4vh, 1.02rem);
  line-height: 1.65;
  color: var(--ink-dim);
  max-width: 42ch;
}

.diff-list { display: flex; flex-direction: column; gap: clamp(8px, 1.6vh, 20px); }

.diff-row {
  padding-bottom: clamp(8px, 1.6vh, 18px);
  border-bottom: 1px solid var(--line);
}
.diff-row:last-child { border-bottom: none; padding-bottom: 0; }

.diff-row h3 {
  font-size: clamp(0.88rem, 1.3vh, 1rem);
  font-weight: 600;
  margin: 0 0 4px;
}

.diff-row p {
  font-size: clamp(0.78rem, 1.2vh, 0.9rem);
  color: var(--ink-dim);
  line-height: 1.5;
  margin: 0;
  max-width: 58ch;
}

.capabilities-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(10px, 1.6vh, 20px);
  padding-top: clamp(10px, 2vh, 24px);
  border-top: 1px solid var(--line);
}

.cap-group { display: flex; flex-wrap: wrap; gap: 8px; align-content: flex-start; }

.cap-group-label {
  width: 100%;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.cap-chip {
  font-size: 0.8rem;
  color: var(--ink);
  background: var(--hover-tint);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 6px 12px;
}

.cap-chip.mono { font-family: var(--mono); font-size: 0.74rem; }

/* ---------- Work ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.case-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 22px;
  transition: border-color 0.2s ease;
}

.case-card:hover {
  border-color: var(--ink-faint);
}

.case-card-head {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 14px;
}

.case-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
}

.case-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 10px;
  line-height: 1.3;
}

.case-card p {
  font-size: 0.85rem;
  color: var(--ink-dim);
  line-height: 1.55;
  margin: 0;
}

/* ---------- Experience ---------- */
.timeline { display: flex; flex-direction: column; gap: clamp(2px, 0.6vh, 8px); margin-bottom: clamp(12px, 2.4vh, 32px); min-height: 0; }

.tl-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  padding: clamp(10px, 2vh, 22px) 0;
  border-bottom: 1px solid var(--line);
}
.tl-row:last-child { border-bottom: none; }

.tl-time { display: flex; flex-direction: column; gap: 4px; }

.tl-dates {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
}

.tl-org {
  font-size: 0.98rem;
  font-weight: 600;
}

.tl-role {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

.tl-role h3 { font-size: clamp(0.88rem, 1.3vh, 0.98rem); font-weight: 600; margin: 0; }

.tl-role-dates {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--ink-faint);
}

.tl-body p {
  font-size: clamp(0.78rem, 1.2vh, 0.88rem);
  color: var(--ink-dim);
  line-height: 1.5;
  margin: 0;
  max-width: 60ch;
}

.edu-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding-top: clamp(10px, 2vh, 24px);
  border-top: 1px solid var(--line);
}

.edu-block {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.edu-tag {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--accent);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 4px 8px;
  flex: 0 0 auto;
}

.edu-block h4 {
  font-size: 0.92rem;
  font-weight: 600;
  margin: 0 0 4px;
}

.edu-block span {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-faint);
}

/* ---------- Contact ---------- */
.contact-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 44px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 60px;
  width: 100%;
  max-width: 560px;
}

.contact-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.2s ease;
}

.contact-link:hover {
  border-color: var(--accent);
}

.contact-link-label {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.contact-link-value {
  font-size: 1rem;
  font-weight: 500;
}

.contact-meta {
  display: flex;
  gap: 24px;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-faint);
}

/* ---------- Responsive ---------- */
/* Desktop stays viewport-sized when content fits; short windows scroll the
   document instead of clipping content or introducing nested panel scrollers. */
@media (min-width: 981px) {
  html { scrollbar-color: var(--ink-faint) transparent; }
  body::-webkit-scrollbar { width: 8px; }
  body::-webkit-scrollbar-track { background: var(--bg); }
  body::-webkit-scrollbar-thumb {
    background: var(--ink-faint);
    border: 2px solid var(--bg);
    border-radius: 999px;
  }
}

@media (max-width: 980px) {
  .topbar { padding: 0 16px; }
  .brand-sub { display: none; }
  .status { min-width: auto; }
  .tab-label { display: none; }
  .tab { padding: 8px 12px; }

  .panel { padding: 28px 20px 24px; }
  .home-main { grid-template-columns: 1fr; gap: 32px; }
  .about-layout { grid-template-columns: 1fr; }
  .capabilities-strip { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .tl-row { grid-template-columns: 1fr; gap: 10px; }
  .edu-strip { grid-template-columns: 1fr; }
}

/* ---------- Mobile adaptation ---------- */
@media (max-width: 980px) {
  :root {
    --topbar-h: 64px;
    --mobile-nav-h: 64px;
  }

  html,
  body {
    height: auto;
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    scrollbar-color: var(--ink-faint) transparent;
  }

  body::-webkit-scrollbar { width: 8px; }
  body::-webkit-scrollbar-track { background: transparent; }
  body::-webkit-scrollbar-thumb {
    background: var(--ink-faint);
    border: 2px solid var(--bg);
    border-radius: 999px;
  }

  .frame {
    height: auto;
    min-height: 100dvh;
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    height: calc(var(--topbar-h) + env(safe-area-inset-top));
    padding: env(safe-area-inset-top) max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
  }

  .brand { min-width: 0; }
  .status {
    min-width: 0;
    margin-left: auto;
  }
  .status-text { display: none; }

  .mode-toggle {
    width: 44px;
    height: 44px;
  }

  .tabs {
    position: fixed;
    z-index: 20;
    left: 0;
    right: 0;
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 2px;
    padding: 7px max(8px, env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
    background: var(--bg-raised);
    border: 0;
    border-top: 1px solid var(--line);
    border-radius: 0;
  }

  .tab {
    min-width: 0;
    min-height: 48px;
    justify-content: center;
    padding: 6px 2px;
    border-radius: 7px;
    color: var(--ink);
    font-size: clamp(0.68rem, 3vw, 0.78rem);
    line-height: 1;
  }

  .tab-label { display: block; }
  .tab-index { display: none; }

  .stage {
    flex: none;
    min-height: calc(100dvh - var(--topbar-h));
    position: relative;
    overflow: visible;
  }

  .panel {
    position: relative;
    inset: auto;
    display: none;
    min-height: calc(100dvh - var(--topbar-h));
    opacity: 1;
    visibility: visible;
    overflow: visible;
    padding: clamp(28px, 7vw, 40px) max(20px, env(safe-area-inset-right)) calc(var(--mobile-nav-h) + 32px + env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
    transition: none;
  }

  .panel.is-active { display: flex; }

  .panel-grid,
  .panel-grid--single {
    flex: none;
    min-height: 0;
    justify-content: flex-start;
    gap: 0;
    padding-top: 0;
  }

  #home .panel-grid,
  #contact .panel-grid {
    min-height: calc(100dvh - var(--topbar-h) - var(--mobile-nav-h) - 60px);
    justify-content: center;
  }

  .home-main { gap: 28px; }
  .home-title { font-size: clamp(2.5rem, 12vw, 3.3rem); }
  .home-lede { margin-bottom: 28px; }
  .home-readout { padding: 22px; }

  .section-kicker { margin-bottom: 12px; }
  .section-title { margin-bottom: 28px; }

  .about-layout {
    gap: 28px;
    margin-bottom: 32px;
  }
  .about-lede { margin: 0; }
  .diff-list { gap: 18px; }
  .diff-row { padding-bottom: 18px; }
  .capabilities-strip {
    gap: 22px;
    padding-top: 28px;
  }

  .case-grid { gap: 14px; }
  .case-card { padding: 20px; }

  .timeline {
    gap: 0;
    margin-bottom: 28px;
  }
  .tl-row {
    gap: 12px;
    padding: 22px 0;
  }
  .tl-role {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .edu-strip {
    gap: 18px;
    padding-top: 24px;
  }

  .contact-title { margin-bottom: 28px; }
  .contact-links { margin-bottom: 36px; }
  .contact-link {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 18px 20px;
  }
  .contact-link-value {
    width: 100%;
    overflow-wrap: anywhere;
  }
  .contact-meta {
    flex-wrap: wrap;
    gap: 8px 20px;
  }
}

@media (max-width: 350px) {
  .home-actions { flex-direction: column; }
  .home-actions button { width: 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}