:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f4;
  --text: #1a1a1a;
  --text-muted: #5c5c5c;
  --border: #e5e3e0;
  --accent: #0f5499;
  --accent-hover: #0c4380;
  --accent-soft: #e3edf7;
  --code-bg: #f0efec;
  --sidebar-w: 250px;

  --c1: #0f766e; --c1-bg: #e6f4f2;
  --c2: #7c3aed; --c2-bg: #f1eafd;
  --c3: #b45309; --c3-bg: #fbecd9;
  --c4: #be185d; --c4-bg: #fce7f0;
  --c5: #1d4ed8; --c5-bg: #e6edfc;
  --c6: #15803d; --c6-bg: #e5f5ea;
}

[data-theme="dark"] {
  --bg: #16181a;
  --bg-alt: #1e2124;
  --text: #ececec;
  --text-muted: #a3a3a3;
  --border: #303338;
  --accent: #5b9bd5;
  --accent-hover: #7eb6e8;
  --accent-soft: #16283d;
  --code-bg: #212428;

  --c1: #5eead4; --c1-bg: #103b36;
  --c2: #c4b5fd; --c2-bg: #2e1f52;
  --c3: #fbbf24; --c3-bg: #3d2c0a;
  --c4: #f9a8d4; --c4-bg: #401f30;
  --c5: #93c5fd; --c5-bg: #1c2c52;
  --c6: #86efac; --c6-bg: #10331d;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #16181a;
    --bg-alt: #1e2124;
    --text: #ececec;
    --text-muted: #a3a3a3;
    --border: #303338;
    --accent: #5b9bd5;
    --accent-hover: #7eb6e8;
    --accent-soft: #16283d;
    --code-bg: #212428;

    --c1: #5eead4; --c1-bg: #103b36;
    --c2: #c4b5fd; --c2-bg: #2e1f52;
    --c3: #fbbf24; --c3-bg: #3d2c0a;
    --c4: #f9a8d4; --c4-bg: #401f30;
    --c5: #93c5fd; --c5-bg: #1c2c52;
    --c6: #86efac; --c6-bg: #10331d;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  transition: background 0.15s ease, color 0.15s ease;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-hover);
}

p {
  margin: 0 0 16px;
}

/* Layout */
.layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.sidebar-profile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-photo {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
}

.sidebar-name {
  font-weight: 700;
  font-size: 15.5px;
}

.sidebar-role {
  color: var(--text-muted);
  font-size: 12.5px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  display: inline-block;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  70% { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.side-link {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14.5px;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 7px;
  border-left: 2px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}

.side-link:hover {
  background: var(--bg-alt);
  color: var(--text);
  transform: translateX(2px);
}

.side-link.active {
  color: var(--accent);
  background: var(--accent-soft);
  border-left-color: var(--accent);
}

.side-link.sub {
  font-size: 13.5px;
  font-weight: 500;
  padding-left: 18px;
}

.side-group {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.side-group-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 700;
  padding: 0 10px 6px;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text);
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.sidebar-toggle-mobile {
  display: none;
}

.sidebar-overlay {
  display: none;
}

/* Content */
.content {
  flex: 1;
  min-width: 0;
  max-width: 700px;
  margin: 0 auto;
  padding: 48px 28px 60px;
}

section {
  padding-top: 6px;
  margin-bottom: 52px;
  scroll-margin-top: 24px;
}

section:last-child {
  margin-bottom: 0;
}

h2.section-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0 0 18px;
  font-weight: 700;
}

/* Hero */
.hero {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-bottom: 28px;
}

.hero img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--accent-soft);
}

.hero h1 {
  margin: 0 0 6px;
  font-size: 28px;
  letter-spacing: -0.02em;
}

.hero .tagline {
  margin: 0;
  color: var(--text-muted);
  font-size: 16.5px;
}

.wave {
  display: inline-block;
  animation: wave 2.4s infinite;
  transform-origin: 70% 70%;
}

@keyframes wave {
  0%, 60%, 100% { transform: rotate(0deg); }
  10% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
  30% { transform: rotate(14deg); }
  40% { transform: rotate(-4deg); }
  50% { transform: rotate(10deg); }
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 7px;
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
}

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

.btn.primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
}

/* Experience */
.exp-item {
  padding: 16px 18px;
  border-radius: 10px;
  margin-bottom: 12px;
  transition: background 0.15s ease, transform 0.15s ease;
  scroll-margin-top: 24px;
}

.exp-item:hover {
  background: var(--bg-alt);
  transform: translateX(3px);
}

.exp-item .role-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-weight: 700;
  flex-wrap: wrap;
  font-size: 16px;
}

.exp-item .dates {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}

.exp-item .org {
  color: var(--text-muted);
  font-size: 14.5px;
  margin-top: 4px;
}

/* Projects */
.project {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 24px;
  margin-bottom: 18px;
  background: var(--bg-alt);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  scroll-margin-top: 24px;
}

.project:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.08);
  border-color: var(--accent);
}

.project h3 {
  margin: 0 0 8px;
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.project p {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 15.5px;
}

.project p:last-of-type {
  margin-bottom: 0;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.video-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--accent);
}

a.video-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.video-link.disabled {
  color: var(--text-muted);
  cursor: default;
}

.badge-soon {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 999px;
}

.tag {
  font-size: 12.5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  padding: 3px 9px;
  border-radius: 5px;
  font-weight: 600;
}

.tag.c1 { color: var(--c1); background: var(--c1-bg); }
.tag.c2 { color: var(--c2); background: var(--c2-bg); }
.tag.c3 { color: var(--c3); background: var(--c3-bg); }
.tag.c4 { color: var(--c4); background: var(--c4-bg); }
.tag.c5 { color: var(--c5); background: var(--c5-bg); }
.tag.c6 { color: var(--c6); background: var(--c6-bg); }

/* Hobbies / outside of work */
#hobbies {
  padding: 28px 24px 32px;
  margin-left: -24px;
  margin-right: -24px;
  border-radius: 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
}

.hobbies-intro {
  margin-bottom: 4px;
  max-width: 560px;
}

.hobby-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 210px;
  gap: 14px;
  margin-top: 22px;
}

.card-sports       { grid-column: span 2; grid-row: span 2; }
.card-photography  { grid-column: span 2; grid-row: span 2; }
.card-travel       { grid-column: span 4; grid-row: span 1; }

.hobby-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg);
  cursor: pointer;
  text-align: left;
  padding: 0;
  font-family: inherit;
  color: inherit;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.hobby-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(0,0,0,0.14);
  border-color: var(--accent);
}

.hobby-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hobby-card-media {
  position: relative;
  height: calc(100% - 116px);
  flex: none;
  overflow: hidden;
  display: grid;
  gap: 2px;
  background: var(--border);
}

.hobby-card-media img {
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.hobby-card:hover .hobby-card-media img {
  transform: scale(1.05);
}

.media-count-1 { grid-template-columns: 1fr; grid-template-rows: 1fr; }

.media-count-2 { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr; }

.media-count-3 {
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: 1fr 1fr;
}
.media-count-3 img:nth-child(1) { grid-column: 1; grid-row: 1 / -1; }
.media-count-3 img:nth-child(2) { grid-column: 2; grid-row: 1; }
.media-count-3 img:nth-child(3) { grid-column: 2; grid-row: 2; }

.media-count-3-wide {
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr;
}

.media-count-6 {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 1fr 1fr;
}

/* Crop bias for images whose subject sits off-center */
.card-travel .hobby-card-media img:nth-child(1) { object-position: center 62%; }
.card-sports .hobby-card-media img:nth-child(2) { object-position: center 25%; } /* horse riding */
.card-sports .hobby-card-media img:nth-child(4) { object-position: center 30%; } /* cycling */

.media-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(3px);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 4px 9px;
  border-radius: 999px;
  z-index: 2;
  pointer-events: none;
}

.media-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  color: #fff;
  font-size: 13.5px;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.2s ease, background 0.2s ease;
  z-index: 3;
  pointer-events: none;
}

.hobby-card:hover .media-hint {
  opacity: 1;
  background: rgba(0,0,0,0.28);
}

.hobby-card-body {
  height: 116px;
  padding: 14px 16px 16px;
  flex: none;
  overflow: hidden;
}

.hobby-card-title {
  font-weight: 700;
  font-size: 15.5px;
  margin-bottom: 4px;
}

.hobby-card-caption {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 700px) {
  #hobbies {
    margin-left: -20px;
    margin-right: -20px;
    padding: 22px 20px 26px;
    border-radius: 0;
  }

  .hobby-cards {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .card-sports, .card-photography, .card-travel {
    grid-column: span 1;
    grid-row: span 1;
  }

  .hobby-card { height: auto; }
  .hobby-card-media { height: 200px; flex: none; }
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(6, 7, 9, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-figure {
  max-width: min(88vw, 1000px);
  max-height: 86vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.lightbox-figure img {
  max-width: 100%;
  max-height: 74vh;
  border-radius: 10px;
  object-fit: contain;
  box-shadow: 0 24px 64px rgba(0,0,0,0.55);
}

.lightbox-close {
  position: absolute;
  top: 18px;
  right: 20px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-close:hover { background: rgba(255,255,255,0.18); }

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-nav:hover { background: rgba(255,255,255,0.18); }
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }

.lightbox-counter {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  color: #bbb;
  font-size: 12.5px;
  letter-spacing: 0.03em;
}

@media (max-width: 700px) {
  .lightbox-nav { width: 40px; height: 40px; font-size: 22px; }
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
  .lightbox-close { top: 12px; right: 12px; }
}

/* Contact */
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-links a {
  text-decoration: none;
  font-weight: 600;
}

.contact-links a:hover {
  text-decoration: underline;
}

footer.page-footer {
  color: var(--text-muted);
  font-size: 13.5px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 40px;
}

/* Mobile */
@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 50;
    background: var(--bg);
    transform: translateX(-100%);
    transition: transform 0.22s ease;
    box-shadow: 8px 0 24px rgba(0,0,0,0.15);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-toggle-mobile {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 60;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    font-size: 18px;
    cursor: pointer;
    color: var(--text);
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.35);
    z-index: 40;
  }

  .sidebar-overlay.open {
    display: block;
  }

  .content {
    padding: 76px 20px 50px;
  }

  .hero {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }

  .hero img {
    width: 84px;
    height: 84px;
  }

  .exp-item .role-line {
    flex-direction: column;
    gap: 2px;
  }
}

/* Project detail pages */
.content.detail-page {
  max-width: 860px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 28px;
}

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

.detail-hero {
  margin-bottom: 8px;
}

.detail-hero .eyebrow {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 8px;
}

.detail-hero h1 {
  font-size: 32px;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.detail-hero .tagline {
  color: var(--text-muted);
  font-size: 17.5px;
  margin: 0 0 20px;
  max-width: 640px;
}

.stack-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 32px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 28px 0 40px;
}

.value-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  background: var(--bg-alt);
}

.value-card .label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.value-card p {
  font-size: 14.5px;
  color: var(--text-muted);
  margin: 0;
}

.detail-page h2.section-title {
  margin-top: 8px;
}

.gallery {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 20px;
  margin-bottom: 44px;
}

.gallery-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-alt);
}

.gallery-item img {
  width: 100%;
  display: block;
  border-bottom: 1px solid var(--border);
  background: #0b0d0f;
}

.gallery-caption {
  padding: 14px 18px;
}

.gallery-caption .cap-title {
  font-weight: 700;
  font-size: 14.5px;
  margin-bottom: 3px;
}

.gallery-caption .cap-desc {
  font-size: 13.5px;
  color: var(--text-muted);
}

.next-project {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.next-project a {
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
}

.next-project a:hover {
  color: var(--accent-hover);
}

.gallery-note {
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 13.5px;
  color: var(--text-muted);
  margin-top: -8px;
  margin-bottom: 32px;
}

@media (max-width: 700px) {
  .value-grid {
    grid-template-columns: 1fr;
  }

  .detail-hero h1 {
    font-size: 26px;
  }
}