/* ---------- Themes ---------- */
:root {
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

[data-theme="light-cream"] {
  --bg: #fbfbf9;
  --text: #121212;
  --muted: #63625e;
  --border: #e6e4de;
  --card: #f4f3ef;
  --card-hover: #ebeae5;
  --badge: #ebeae5;
  --glow: rgba(216, 214, 208, 0.20);
  --solid-bg: #121212;
  --solid-text: #ffffff;
  --portrait-fade: rgba(244, 243, 239, 0.7);
}

[data-theme="elegant-dark"] {
  --bg: #050505;
  --text: #e5e5e5;
  --muted: rgba(229, 229, 229, 0.55);
  --border: rgba(255, 255, 255, 0.08);
  --card: #0c0c0c;
  --card-hover: #141414;
  --badge: rgba(255, 255, 255, 0.06);
  --glow: rgba(255, 255, 255, 0.03);
  --solid-bg: #ffffff;
  --solid-text: #050505;
  --portrait-fade: rgba(5, 5, 5, 0.7);
}

[data-theme="warm-sepia"] {
  --bg: #f4f0e6;
  --text: #433422;
  --muted: #7c6a59;
  --border: #e4dac6;
  --card: rgba(235, 217, 193, 0.4);
  --card-hover: rgba(235, 217, 193, 0.65);
  --badge: rgba(235, 217, 193, 0.6);
  --glow: rgba(158, 131, 106, 0.10);
  --solid-bg: #433422;
  --solid-text: #ffffff;
  --portrait-fade: rgba(235, 217, 193, 0.7);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  padding-bottom: 6rem;
  transition: background-color 0.5s ease, color 0.5s ease;
  position: relative;
}

::selection { background: #202020; color: #fff; }

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

.container {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.ambient-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 350px;
  border-radius: 50%;
  filter: blur(120px);
  background: var(--glow);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.5s ease, border-color 0.5s ease;
}

.header-inner {
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  object-fit: cover;
}

.brand-name {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tabs {
  display: flex;
  gap: 0.25rem;
}

.tab {
  position: relative;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: -0.01em;
  opacity: 0.6;
  transition: opacity 0.25s ease, background-color 0.25s ease;
}
.tab:hover { opacity: 1; }
.tab.is-active {
  opacity: 1;
  font-weight: 500;
  background: var(--badge);
}

.theme-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.15rem;
}
.swatch {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  border: 1px solid transparent;
  opacity: 0.45;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.swatch:hover { opacity: 1; }
.swatch.is-active {
  opacity: 1;
  transform: scale(1.1);
  border-color: #a3a3a3;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

/* ---------- Main / Panels ---------- */
.main {
  padding-top: 4rem;
  position: relative;
  z-index: 1;
}
@media (min-width: 640px) {
  .main { padding-top: 6rem; }
}

.panel { display: none; }
.panel.is-active { display: block; animation: fade-in 0.5s cubic-bezier(0.16, 1, 0.3, 1); }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(15px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Hero ---------- */
.hero { max-width: 48rem; margin-bottom: 6rem; }
.hero > * + * { margin-top: 1.5rem; }
.hero .lede { margin-top: 2.5rem; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.85;
}
.pill .dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: #10b981;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.display {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
}

.display-sm {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0;
}

.lede {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 40rem;
  margin: 0;
}
@media (min-width: 640px) { .lede { font-size: 1.25rem; } }

/* ---------- Bento grid ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  margin-bottom: 6rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  transition: background-color 0.5s ease, border-color 0.5s ease;
  grid-column: span 12;
}
.card-about { grid-column: span 12; }
.card-portrait { grid-column: span 12; padding: 0; min-height: 300px; position: relative; overflow: hidden; display: flex; }
.card-skills { grid-column: span 12; }
.card-loc { grid-column: span 12; }

@media (min-width: 768px) {
  .card-about { grid-column: span 8; }
  .card-portrait { grid-column: span 4; }
  .card-skills { grid-column: span 8; }
  .card-loc { grid-column: span 4; }
}

.card-portrait img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, opacity 0.5s ease;
}
.card-portrait .portrait-dark { opacity: 0; }
[data-theme="elegant-dark"] .card-portrait .portrait-light { opacity: 0; }
[data-theme="elegant-dark"] .card-portrait .portrait-dark { opacity: 1; }
.card-portrait:hover img { transform: scale(1.03); }
.portrait-fade {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--portrait-fade), transparent 60%);
  pointer-events: none;
}

.eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 1rem;
}

.body-copy {
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0 0 1rem;
  opacity: 0.9;
}
.body-copy:last-of-type { margin-bottom: 0; }

.card-meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  font-family: var(--mono);
  font-size: 0.6875rem;
  opacity: 0.6;
}
.card-meta span { display: inline-flex; align-items: center; gap: 0.4rem; }
.meta-dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; }
.dot-emerald { background: #10b981; }
.dot-sky { background: #0ea5e9; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.chips li {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border);
  background: var(--badge);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.6875rem;
}

.mono-small {
  font-family: var(--mono);
  font-size: 0.75rem;
  opacity: 0.8;
  margin: 0;
}

/* ---------- Featured / section head ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  border-bottom: 1px solid color-mix(in srgb, var(--text) 15%, transparent);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
}
.section-head .eyebrow { margin-bottom: 0.25rem; }
.section-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 1.875rem;
  margin: 0;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  opacity: 0.6;
  transition: opacity 0.2s ease;
}
.link-btn:hover { opacity: 1; }

/* ---------- Project cards ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.project-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  min-height: 220px;
  transition: background-color 0.25s ease, transform 0.25s ease;
}
.project-card.tall { min-height: 250px; }
.project-card:hover { background: var(--card-hover); }
.project-card:hover .project-head h3 { transform: translateX(4px); }
.project-card:hover .arrow { opacity: 1; transform: translate(2px, -2px); }

.project-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}
.project-head h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
  transition: transform 0.25s ease;
}
.arrow {
  opacity: 0.4;
  font-size: 1rem;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.project-card p {
  font-size: 0.8125rem;
  color: var(--muted);
  margin: 0.5rem 0 0;
  line-height: 1.65;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.tags span {
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.6rem;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--text) 10%, transparent);
}

/* ---------- Page head ---------- */
.page-head {
  max-width: 40rem;
  margin-bottom: 3rem;
}
.page-head .eyebrow { margin-bottom: 0.5rem; }
.page-head .muted { margin-top: 0.75rem; }

.muted { color: var(--muted); font-size: 0.875rem; margin: 0; }

/* ---------- Timeline ---------- */
.timeline {
  list-style: none;
  padding: 1rem 0 1rem 2rem;
  margin: 0 0 0 0.5rem;
  border-left: 1px solid color-mix(in srgb, var(--text) 20%, transparent);
  max-width: 48rem;
}
.timeline li { position: relative; margin-bottom: 3rem; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -2.4rem;
  top: 0.4rem;
  width: 0.75rem;
  height: 0.75rem;
  background: var(--text);
  border: 1px solid #999;
  border-radius: 50%;
  transition: transform 0.25s ease;
}
.timeline li:hover::before { transform: scale(1.25); }
.timeline .period {
  display: block;
  font-family: var(--mono);
  font-size: 0.75rem;
  opacity: 0.5;
  margin-bottom: 0.5rem;
}
.timeline h3 {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}
.soft { opacity: 0.4; font-weight: 300; }
.timeline p {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0;
  max-width: 40rem;
}

/* ---------- Contact ---------- */
.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  transition: background-color 0.5s ease;
  margin-bottom: 2rem;
}
.contact-card .eyebrow { margin-bottom: 0.35rem; }
.email {
  display: block;
  font-family: var(--mono);
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.contact-actions { display: flex; gap: 0.5rem; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.btn-ghost {
  background: var(--badge);
  border: 1px solid var(--border);
}
.btn-ghost:hover { opacity: 0.85; }
.btn-solid {
  background: var(--solid-bg);
  color: var(--solid-text);
  border: 1px solid var(--solid-bg);
}
.btn-solid:hover { opacity: 0.9; }
.btn-ghost.is-copied .btn-label::before {
  content: "✓ ";
  color: #10b981;
}

.footprint {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.footprint .eyebrow { margin-bottom: 0.75rem; }
.footprint p { max-width: 32rem; line-height: 1.7; }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 6rem;
  padding-top: 2rem;
  border-top: 1px solid color-mix(in srgb, var(--text) 15%, transparent);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  opacity: 0.4;
}
.site-footer p { margin: 0; }

/* ---------- Responsive tweaks ---------- */
@media (max-width: 640px) {
  .header-inner { gap: 0.5rem; }
  .tabs { gap: 0; }
  .tab { padding: 0.35rem 0.55rem; font-size: 0.7rem; }
  .brand-name { display: none; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}