/* ===== RESET ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ===== DESIGN TOKENS ===== */
:root {
  --bg:             #f8f7f3;
  --bg-card:        #ffffff;
  --bg-tag:         #f0efe9;

  --text-primary:   #1a1a1a;
  --text-secondary: #555555;
  --text-muted:     #636363;
  --text-faint:     #636363;

  --body-size:      13px;
  --body-lh:        1.65;

  --border-strong:  #1a1a1a;
  --border-mid:     #d5d3cc;
  --border-light:   #e0ded8;
  --border-faint:   #ebe9e3;

  --green:          #22c55e;

  --font-serif:     'Playfair Display', Georgia, serif;
  --font-sans:      'Inter', -apple-system, 'Helvetica Neue', sans-serif;
  --font-mono:      'Courier New', monospace;
}

/* ===== BASE ===== */
html {
  background: var(--bg);
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

/* ===== MASTHEAD ===== */
.masthead {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 16px 32px 14px;
  border-bottom: 2px solid var(--border-strong);
}

.masthead-name {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: -1px;
  line-height: 1;
}

.masthead-roles {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

/* ===== PAGE LAYOUT ===== */
.layout {
  display: grid;
  grid-template-columns: 240px 1px minmax(0, 1fr);
  align-items: start;
  min-height: calc(100vh - 62px);
}

.col-sep {
  background: var(--border-mid);
  align-self: stretch;
}

/* ===== SIDEBAR ===== */
.sidebar {
  padding: 22px 20px;
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow-y: auto;
  scrollbar-width: none;
}

.sidebar::-webkit-scrollbar {
  display: none;
}

/* Photo */
.photo-box {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
  background: #e0ded8;
  margin-bottom: 22px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.photo-box img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  z-index: 1;
}

.photo-initials {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 400;
  color: #bbb;
  letter-spacing: -1px;
  z-index: 0;
}

/* Sidebar sections */
.sb-section {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 0.5px solid var(--border-light);
}

.sb-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.sb-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: #333;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

/* Education */
.edu-degree {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 4px;
}

.edu-spec {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.edu-inst-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.edu-inst {
  font-size: 12.5px;
  color: var(--text-primary);
}

.edu-year {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

/* Skills */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--bg-tag);
  border: 0.5px solid #d0cec8;
  border-radius: 3px;
  padding: 3px 8px;
  line-height: 1.4;
}

/* Certifications */
.cert-item {
  margin-bottom: 9px;
}

.cert-item:last-child {
  margin-bottom: 0;
}

.cert-name {
  font-size: 12.5px;
  color: var(--text-primary);
  line-height: 1.35;
}

.cert-issuer {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* Contact */
.contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 9px;
  transition: opacity 0.15s;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-item:hover {
  opacity: 0.7;
}

.contact-icon {
  width: 14px;
  height: 14px;
  color: #aaa;
  flex-shrink: 0;
}

.contact-text {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

/* ===== MAIN CONTENT ===== */
.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.section {
  padding: 20px 24px;
  border-bottom: 0.5px solid var(--border-mid);
}

.section-label {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  margin-bottom: 20px;
}

.section-label .amp {
  font-family: var(--font-sans);
  font-weight: 400;
}

.card-title-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

.card-ext-link {
  font-family: var(--font-sans);
  font-size: 12px;
  color: #1d4ed8;
  text-decoration: none;
  line-height: 1.3;
}

.card-ext-link:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.card-ext-link-play {
  color: #01875f;
  font-weight: 500;
}

.card-ext-link-play:hover {
  color: #016b4a;
}

/* ===== STARTUP CARD (Tranquil AI) ===== */
.startup-card {
  display: grid;
  grid-template-columns: 45% minmax(0, 1fr);
  background: var(--bg-card);
  border: 0.5px solid var(--border-light);
  border-radius: 5px;
  overflow: hidden;
  margin-bottom: 12px;
  min-height: 300px;
}

.startup-img {
  background: #111;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.startup-img img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

.startup-img-fallback {
  font-family: var(--font-serif);
  font-size: 14px;
  color: #555;
  z-index: 0;
}

.startup-body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  overflow: hidden;
}

.startup-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 4px;
}

.startup-name {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
}

.startup-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  padding-top: 2px;
}

.startup-role {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.startup-desc,
.work-desc,
.proj-desc {
  font-size: var(--body-size);
  color: var(--text-secondary);
  line-height: var(--body-lh);
  overflow-wrap: break-word;
}

.startup-desc + .startup-desc {
  margin-top: 10px;
}

/* ===== TWO-COLUMN ROWS ===== */
.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}

/* ===== WORK CARD (Freelance) ===== */
.work-card {
  background: var(--bg-card);
  border: 0.5px solid var(--border-light);
  border-radius: 5px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.work-img {
  width: 100%;
  background: #111;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.work-img img {
  width: 100%;
  height: auto;
  display: block;
}

.work-img-lbl {
  font-family: var(--font-mono);
  font-size: 9px;
  color: #bbb;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.work-body {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 2px;
}

.work-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2px;
}

.work-name {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.work-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.work-role {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 7px;
}

.work-desc {
  flex: 1;
  margin-bottom: 10px;
}

/* ===== INTERN CARD ===== */
.intern-card {
  background: var(--bg-card);
  border: 0.5px solid var(--border-light);
  border-radius: 5px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.intern-img {
  width: 100%;
  height: 110px;
  background: #fff;
  padding: 18px 22px;
  border-bottom: 0.5px solid var(--border-faint);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.intern-img img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.intern-img-lbl {
  font-family: var(--font-mono);
  font-size: 9px;
  color: #bbb;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.intern-body {
  padding: 10px 13px;
  flex: 1;
}

.intern-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2px;
}

.intern-name {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.intern-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.intern-role {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 7px;
}

.intern-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #92400e;
  background: #fef3c7;
  padding: 2px 7px;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.intern-work {
  border-top: 0.5px solid var(--border-faint);
  padding-top: 9px;
}

.intern-work-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 7px;
}

.intern-work-item {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  margin-bottom: 6px;
  font-size: var(--body-size);
  color: var(--text-secondary);
  line-height: var(--body-lh);
}

.intern-work-item:last-child {
  margin-bottom: 0;
}

.bullet-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #ccc;
  flex-shrink: 0;
  margin-top: 6px;
}

/* ===== PROJECT GRID ===== */
.proj-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.proj-card {
  display: grid;
  grid-template-columns: 45% minmax(0, 1fr);
  background: var(--bg-card);
  border: 0.5px solid var(--border-light);
  border-radius: 5px;
  overflow: hidden;
  min-height: 300px;
}

.proj-img {
  width: 100%;
  background: #111;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.proj-img img {
  width: 100%;
  height: auto;
  display: block;
}

.proj-img-lbl {
  font-family: var(--font-mono);
  font-size: 9px;
  color: #bbb;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.proj-body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.proj-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 3px;
}

.proj-name {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.proj-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.proj-stack {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 9px;
  line-height: 1.55;
}

.proj-desc {
  margin-bottom: 10px;
}

.proj-desc:last-of-type {
  margin-bottom: 14px;
}

/* ===== TAGS ===== */
.work-tags {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-top: auto;
}

.wtag {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.wtag-live      { background: #dcfce7; color: #15803d; }
.wtag-founded   { background: #f5f0ff; color: #6d28d9; }
.wtag-award     { background: #fef3c7; color: #92400e; }
.wtag-freelance { background: #f0efe9; color: var(--text-secondary); }
.wtag-neutral   { background: #f0efe9; color: var(--text-secondary); }
.wtag-oss       { background: #eff6ff; color: #1d4ed8; }

/* ===== BOTTOM GRID ===== */
.bottom-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr);
  align-items: start;
}

.bot-sep {
  background: var(--border-mid);
  align-self: stretch;
}

.bottom-col {
  overflow: hidden;
  padding: 20px 24px;
}

/* Research */
.research-card {
  background: var(--bg-card);
  border: 0.5px solid var(--border-light);
  border-radius: 5px;
  padding: 18px 20px;
}

.research-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}

.research-name {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.35;
}

.research-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
  padding-top: 2px;
}

.research-desc {
  font-size: var(--body-size);
  color: var(--text-secondary);
  line-height: var(--body-lh);
  overflow-wrap: break-word;
}

.research-desc + .research-desc {
  margin-top: 10px;
}

/* Press */
.press-card {
  border: 0.5px solid var(--border-faint);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}

.press-card:last-child {
  margin-bottom: 0;
}

.press-pub-bar {
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #fff;
}

.press-ie  { background: #c62828; }
.press-sp  { background: #1565c0; }
.press-tiw { background: #4a148c; }
.press-bs  { background: #1b5e20; }

.press-card-body {
  padding: 10px 12px;
}

.press-title {
  display: block;
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.55;
  margin-bottom: 4px;
  overflow-wrap: break-word;
  word-break: break-word;
}

.press-title:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: #bbb;
}

.press-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

/* ===== RESPONSIVE: MOBILE ===== */
@media (max-width: 768px) {

  .masthead {
    padding: 14px 20px;
  }

  .masthead-name {
    font-size: 26px;
  }

  /* Stack sidebar above main */
  .layout {
    grid-template-columns: 1fr;
  }

  .col-sep {
    display: none;
  }

  /* Sidebar: unstick, condense */
  .sidebar {
    position: static;
    max-height: none;
    overflow-y: visible;
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--border-light);
  }

  .photo-box {
    width: 100px;
    margin: 0 auto 20px;
  }

  /* Startup + project cards: image on top, body below */
  .startup-card,
  .proj-card {
    grid-template-columns: 1fr;
  }

  /* All two-column grids: single column */
  .two-col,
  .proj-grid {
    grid-template-columns: 1fr;
  }

  /* Bottom grid: stack research + press */
  .bottom-grid {
    grid-template-columns: 1fr;
  }

  .bot-sep {
    height: 1px;
    width: 100%;
    background: var(--border-mid);
  }

  /* Section padding */
  .section {
    padding: 20px;
  }

  .bottom-col {
    padding: 20px;
  }
}