/* Nidhi Pandya — portfolio styles v2
   Bolder, more prominent. Warm terracotta on cream.
   No JS, no framework. Loads under 100ms. */

:root {
  --ink: #0f1417;
  --ink-soft: #3a4149;
  --ink-muted: #6b7076;
  --paper: #faf8f3;
  --paper-warm: #f2ede4;
  --paper-warmer: #ebe4d6;
  --line: #d9d2c3;
  --line-soft: #eae3d3;
  --accent: #a04421; /* deeper terracotta — reads confident */
  --accent-hover: #7d3418;
  --accent-soft: #f0dfd2;
  --accent-tint: #f8ede4;
  --success: #0f6b46;
  --max: 720px;
  --max-wide: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.section-wide.wrap,
.section-wrap.wrap {
  max-width: var(--max-wide);
}

a {
  color: var(--accent);
  transition: color 0.15s;
}

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

/* ===== HEADER ===== */
.site-header {
  border-bottom: 1px solid var(--line-soft);
  background: rgba(250, 248, 243, 0.85);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header .wrap {
  max-width: var(--max-wide);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  padding-bottom: 20px;
}

.brand {
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

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

.site-header nav a {
  color: var(--ink-soft);
  text-decoration: none;
  margin-left: 32px;
  font-size: 15px;
  font-weight: 500;
}

.site-header nav a:hover { color: var(--accent); }

/* ===== HERO ===== */
.hero {
  padding: 128px 24px 96px;
  max-width: var(--max-wide);
}

.eyebrow, .section-eyebrow {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 0 0 24px;
}

.hero h1 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(44px, 7vw, 76px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0 0 32px;
  max-width: 920px;
}

.hero .lede {
  font-size: 21px;
  color: var(--ink-soft);
  max-width: 700px;
  line-height: 1.55;
  margin: 0 0 48px;
}

.hero .lede strong { color: var(--ink); font-weight: 600; }
.hero .lede a { border-bottom: 1px solid var(--accent-soft); text-decoration: none; }
.hero .lede a:hover { border-bottom-color: var(--accent); }

.credibility {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.credibility a {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 18px;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.15s;
}

.credibility a:hover {
  border-color: var(--accent);
  background: var(--paper-warmer);
  transform: translateY(-2px);
}

.credit-label {
  color: var(--accent);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

/* ===== SECTIONS ===== */
.section-title {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 20px;
  max-width: 860px;
}

.section-note {
  color: var(--ink-muted);
  font-size: 17px;
  line-height: 1.55;
  margin: 0 0 48px;
  max-width: 720px;
}

.section-wide, .section-wrap {
  padding: 96px 24px;
  border-top: 1px solid var(--line-soft);
}

/* ===== FEATURED PROJECTS (3 big cards) ===== */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.featured-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 40px;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  border-radius: 16px;
  text-decoration: none;
  color: var(--ink);
  transition: all 0.2s;
  min-height: 340px;
}

.featured-card:hover {
  border-color: var(--accent);
  background: var(--paper-warmer);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(160, 68, 33, 0.08);
}

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

.featured-tag {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.featured-card h3 {
  font-family: 'Instrument Serif', serif;
  font-size: 42px;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 0 0 4px;
  color: var(--ink);
  line-height: 1.05;
}

.featured-desc {
  font-size: 17px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0;
  max-width: 720px;
}

.featured-card-bottom { margin-top: 32px; }

.stack {
  font-size: 13px;
  color: var(--ink-muted);
  font-weight: 500;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
  line-height: 1.5;
}

.featured-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 14px;
  color: var(--ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.featured-metrics span::before {
  content: "→ ";
  color: var(--accent);
  font-weight: 700;
}

/* ===== SECONDARY CASE CARDS (smaller — for BoundaryBench + GroundedGeo tier) ===== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.case-card {
  display: flex;
  flex-direction: column;
  padding: 28px 30px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  color: var(--ink);
  transition: all 0.2s;
}

.case-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 8px 20px rgba(160, 68, 33, 0.06);
}

.case-tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.case-card h3 {
  font-family: 'Instrument Serif', serif;
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  color: var(--ink);
}

.case-card p {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.55;
  margin: 0 0 auto;
  padding-bottom: 20px;
}

.case-metric {
  font-size: 13px;
  color: var(--ink-muted);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}

/* ===== ABOUT ===== */
.about-body p {
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 24px;
  max-width: 780px;
}

.about-body strong { color: var(--ink); font-weight: 600; }
.about-body em { font-style: italic; color: var(--ink); }
.about-body a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--accent-soft);
  transition: border-color 0.15s;
}
.about-body a:hover { border-bottom-color: var(--accent); }

.about-callout {
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
  color: var(--ink);
  line-height: 1.4;
  margin-top: 32px;
  padding-left: 20px;
  border-left: 3px solid var(--accent);
  font-style: italic;
  max-width: 760px;
}

/* ===== RESEARCH ===== */
.research-block { margin-bottom: 48px; max-width: 820px; }

.research-heading {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.research-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.research-list li {
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.research-list li:last-child { border-bottom: none; }

.research-title {
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.research-title a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--accent-soft);
}

.research-title a:hover { border-bottom-color: var(--accent); }

.research-badge {
  display: inline-block;
  padding: 4px 10px;
  background: var(--accent-tint);
  color: var(--accent);
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.research-badge.submitted {
  background: var(--paper-warm);
  color: var(--ink-muted);
}

.research-meta {
  color: var(--ink-muted);
  font-size: 14px;
  margin: 6px 0 0;
}

.research-para {
  font-size: 17px;
  color: var(--ink-soft);
  line-height: 1.65;
  margin: 0;
  max-width: 760px;
}

code {
  background: var(--paper-warm);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 14px;
  font-family: 'SF Mono', Monaco, monospace;
  color: var(--ink);
  border: 1px solid var(--line-soft);
}

/* ===== WRITING ===== */
.writing-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 860px;
}

.writing-list li {
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}

.writing-list li:last-child { border-bottom: none; }

.writing-list a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  display: block;
  transition: color 0.15s;
}

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

.writing-meta {
  display: block;
  color: var(--ink-muted);
  font-size: 15px;
  margin-top: 6px;
  font-weight: 400;
}

/* ===== EXPERIENCE / TIMELINE ===== */
.timeline {
  list-style: none;
  padding: 0;
  margin: 0 0 64px;
  max-width: 860px;
}

.timeline > li {
  padding: 32px 0;
  border-bottom: 1px solid var(--line-soft);
}

.timeline > li:last-child { border-bottom: none; }

.timeline-role {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.timeline-role h3 {
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
  color: var(--ink);
}

.timeline-org {
  font-size: 14px;
  color: var(--ink-muted);
  margin: 0;
  font-weight: 500;
}

.timeline-dates {
  font-size: 14px;
  color: var(--ink-muted);
  margin: 0;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.timeline-body {
  margin: 0;
  padding-left: 20px;
  list-style: disc;
}

.timeline-body li {
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 8px;
  font-size: 16px;
}

/* Education + Certifications */
.edu-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--line-soft);
  max-width: 860px;
}

.edu-item { margin-bottom: 24px; }

.edu-item h4 {
  font-family: 'Instrument Serif', serif;
  font-size: 20px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--ink);
}

.edu-item p {
  color: var(--ink-soft);
  font-size: 15px;
  margin: 0;
  line-height: 1.5;
}

.edu-date {
  color: var(--ink-muted) !important;
  font-size: 13px !important;
  margin-top: 4px !important;
  font-weight: 500;
}

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  max-width: var(--max-wide);
}

.skill-block h4 {
  font-family: 'Instrument Serif', serif;
  font-size: 20px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pills span {
  padding: 6px 12px;
  background: var(--paper-warm);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  font-size: 13px;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.3;
}

/* ===== CONTACT ===== */
.contact-section { background: linear-gradient(180deg, var(--paper) 0%, var(--paper-warm) 100%); }

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  max-width: 780px;
}

.contact-list li { margin: 0; }

.contact-list a {
  display: block;
  padding: 14px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.15s;
}

.contact-list a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.linkedin-pointer {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-muted);
  font-size: 15px;
  max-width: 640px;
  line-height: 1.6;
}

.linkedin-pointer a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--accent-soft);
}

.linkedin-pointer a:hover { border-bottom-color: var(--accent); }

/* ===== FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 40px 0;
  margin-top: 32px;
  background: var(--paper);
}

.site-footer .wrap {
  max-width: var(--max-wide);
}

.site-footer p {
  color: var(--ink-muted);
  font-size: 14px;
  margin: 0;
}

/* ===== CASE STUDY PAGE STYLES ===== */
.case-page {
  padding: 64px 24px 96px;
  max-width: var(--max);
}

.back-link {
  display: inline-block;
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 40px;
  transition: color 0.15s;
}

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

.case-page h1 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 40px;
  color: var(--ink);
}

.tldr {
  background: var(--accent-tint);
  border-left: 4px solid var(--accent);
  padding: 28px 32px;
  border-radius: 6px;
  margin: 0 0 56px;
}

.tldr h2 {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 18px;
}

.tldr ul {
  margin: 0;
  padding-left: 20px;
}

.tldr li {
  font-size: 17px;
  color: var(--ink);
  line-height: 1.6;
  margin-bottom: 10px;
}

.case-page h2 {
  font-family: 'Instrument Serif', serif;
  font-size: 30px;
  font-weight: 400;
  letter-spacing: -0.015em;
  margin: 56px 0 18px;
  color: var(--ink);
}

.case-page p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 20px;
}

.case-page p a {
  color: var(--accent);
  font-weight: 500;
  border-bottom: 1px solid var(--accent-soft);
  text-decoration: none;
}

.case-page p a:hover { border-bottom-color: var(--accent); }

.case-page strong { color: var(--ink); font-weight: 600; }
.case-page em { color: var(--ink); }

.metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  margin: 36px 0;
  padding: 28px;
  background: var(--paper-warm);
  border-radius: 12px;
  border: 1px solid var(--line);
}

.metric { text-align: center; }

.metric-value {
  font-family: 'Instrument Serif', serif;
  font-size: 36px;
  color: var(--ink);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.metric-label {
  font-size: 13px;
  color: var(--ink-muted);
  font-weight: 500;
  line-height: 1.4;
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .site-header nav a { margin-left: 16px; font-size: 14px; }
  .hero { padding: 72px 24px 56px; }
  .section-wide, .section-wrap { padding: 64px 24px; }
  .featured-card { padding: 28px; min-height: auto; }
  .featured-card h3 { font-size: 32px; }
  .edu-grid { grid-template-columns: 1fr; gap: 32px; }
  .timeline-role { flex-direction: column; gap: 8px; }
  .about-callout { font-size: 20px; }
}

@media (max-width: 480px) {
  .site-header nav { display: none; }
}