/* ─────────────────────────────────────────────
   RITWIK SHARMA — PhD Portfolio
   Shared stylesheet — all 6 pages
   ───────────────────────────────────────────── */

:root {
  --parchment:      #f7f4ee;
  --parchment-warm: #f0ebe0;
  --parchment-deep: #e8e0d0;
  --ink:            #1e1b16;
  --ink-mid:        #3a3528;
  --ink-light:      #6b6355;
  --ink-faint:      #9c9080;
  --rule:           #c8bfad;
  --rule-light:     #ddd6c6;
  --scholar:        #2c1810;
  --scholar-mid:    #4a2c1a;
  --scholar-light:  #f5ede5;
  --scholar-border: #d4b896;
  --margin-bg:      #ede8de;
  --p1:             #1a4a2e; --p1-bg: #eef7f1; --p1-border: #a8d5b5;
  --p2:             #3b1f6e; --p2-bg: #f3f0fa; --p2-border: #c4b5e8;
  --p3:             #7a3010; --p3-bg: #fdf3ec; --p3-border: #e8c4a0;
  --game:           #1a3a4a; --game-bg: #eef4f7; --game-border: #a8c8d8;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
@page { size: A4; margin: 0; }

html, body {
  background: var(--parchment);
  color: var(--ink);
  font-family: 'Source Serif 4', serif;
  line-height: 1.7;
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
}

/* ── NAV ── */
.site-nav {
  background: var(--scholar);
  border-bottom: 2px solid var(--scholar-mid);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 48px;
}

.nav-brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--scholar-border);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: #c8b89a;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 10px 9px;
  transition: color 0.15s;
  white-space: nowrap;
}

.nav-links a:hover { color: #fff; }
.nav-links a.active { color: #fff; border-bottom: 2px solid var(--scholar-border); }

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px 8px;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--scholar-border);
  transition: all 0.2s;
  pointer-events: none;
}

.nav-mobile {
  display: none;
  background: var(--scholar);
  border-bottom: 1px solid var(--scholar-mid);
  flex-direction: column;
  position: sticky;
  top: 48px;
  z-index: 99;
}

.nav-mobile a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: #c8b89a;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 24px;
  display: block;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a.active { color: #fff; }
.nav-mobile.open { display: flex; }

/* ── SITE FOOTER ── */
.site-footer {
  background: var(--scholar);
  padding: 24px 32px;
}

.footer-inner {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-l {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: #a89070;
  letter-spacing: 0.08em;
}

.footer-r {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--scholar-border);
  letter-spacing: 0.06em;
}

.footer-r a {
  color: inherit;
  text-decoration: none;
}

/* ── INDEX PAGE ── */
.hero {
  max-width: 860px;
  margin: 0 auto;
  padding: 64px 32px 48px;
  border-bottom: 1px solid var(--rule);
}

.hero-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-name {
  font-family: 'Spectral', serif;
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 300;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin-bottom: 6px;
}

.hero-name em { font-weight: 600; font-style: normal; }

.hero-role {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--scholar-mid);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.hero-thesis {
  background: var(--scholar-light);
  border: 1px solid var(--scholar-border);
  border-left: 4px solid var(--scholar);
  padding: 20px 24px;
  margin-bottom: 32px;
}

.thesis-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--scholar-mid);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 8px;
}

.thesis-q {
  font-family: 'Spectral', serif;
  font-size: clamp(14px, 2.5vw, 17px);
  font-style: italic;
  color: var(--scholar);
  line-height: 1.6;
  font-weight: 300;
  /* Critical: prevent word-per-line on narrow screens */
  word-break: normal;
  overflow-wrap: break-word;
  hyphens: auto;
}

.hero-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.hero-contact a,
.hero-contact span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-light);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.hero-contact a:hover { color: var(--scholar); }

.section-wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 32px;
}

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-label::before { content: '§'; color: var(--rule); font-size: 12px; }

.nav-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 48px;
}

.nav-card {
  background: var(--parchment-warm);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--scholar-mid);
  padding: 20px 22px;
  text-decoration: none;
  display: block;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.nav-card:hover { box-shadow: 0 2px 12px rgba(44,24,16,0.1); }
.nav-card.p1 { border-top-color: var(--p1); }
.nav-card.p2 { border-top-color: var(--p2); }
.nav-card.p3 { border-top-color: var(--p3); }

.card-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.card-title {
  font-family: 'Spectral', serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  line-height: 1.2;
}

.card-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--scholar-mid);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.card-desc {
  font-size: 13px;
  color: var(--ink-mid);
  line-height: 1.6;
  font-weight: 300;
}

.card-arrow {
  margin-top: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
}

.card-doc {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-doc-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.card-doc-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: 3px 9px;
  border: 1px solid;
  transition: background 0.15s, color 0.15s;
}

.nav-card.p1 .card-doc-link { color: var(--p1); border-color: var(--p1-border); background: var(--p1-bg); }
.nav-card.p2 .card-doc-link { color: var(--p2); border-color: var(--p2-border); background: var(--p2-bg); }
.nav-card.p3 .card-doc-link { color: var(--p3); border-color: var(--p3-border); background: var(--p3-bg); }
.nav-card.p1 .card-doc-link:hover { background: var(--p1); color: #fff; }
.nav-card.p2 .card-doc-link:hover { background: var(--p2); color: #fff; }
.nav-card.p3 .card-doc-link:hover { background: var(--p3); color: #fff; }

.about-strip {
  background: var(--margin-bg);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 32px;
}

.about-inner {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.about-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.about-text {
  font-size: 13.5px;
  color: var(--ink-mid);
  line-height: 1.7;
  font-weight: 300;
}

.about-text a { color: inherit; }

.pillars {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 32px;
}

.pillar-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.pillar {
  padding: 16px 18px;
  border: 1px solid var(--rule);
}

.pillar.p1 { background: var(--p1-bg); border-color: var(--p1-border); border-left: 3px solid var(--p1); }
.pillar.p2 { background: var(--p2-bg); border-color: var(--p2-border); border-left: 3px solid var(--p2); }
.pillar.p3 { background: var(--p3-bg); border-color: var(--p3-border); border-left: 3px solid var(--p3); }

.pillar-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 4px;
}

.p1 .pillar-num { color: var(--p1); }
.p2 .pillar-num { color: var(--p2); }
.p3 .pillar-num { color: var(--p3); }

.pillar-title {
  font-family: 'Spectral', serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.pillar-body {
  font-size: 12.5px;
  color: var(--ink-mid);
  line-height: 1.6;
  font-weight: 300;
}

/* ── A4 INNER PAGES (CV, Portfolio, Zombita, etc.) ── */
.page {
  width: 210mm;
  min-height: 297mm;
  margin: 0 auto;
  background: var(--parchment);
  display: grid;
  grid-template-columns: 38px 1fr;
  position: relative;
}

.page::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--scholar);
  z-index: 10;
}

.page.env-prison::before  { background: #2a2420; }
.page.env-shadows::before { background: #1a3520; }

.margin {
  background: var(--margin-bg);
  border-right: 1px solid var(--rule);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.margin-label {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  font-family: 'JetBrains Mono', monospace;
  font-size: 8px;
  color: var(--ink-faint);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 8px 0;
}

.margin-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--rule);
  margin: 3px auto;
}

.margin-section {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: 'JetBrains Mono', monospace;
  font-size: 8px;
  color: var(--scholar-mid);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 12px 0;
  font-weight: 500;
}

.content {
  padding: 24px 32px 24px 22px;
  font-size: 13px;
  min-width: 0; /* prevent overflow */
}

/* ── SHARED INNER-PAGE COMPONENTS ── */
.doc-header {
  border-bottom: 1px solid var(--ink);
  padding-bottom: 14px;
  margin-bottom: 16px;
}

.doc-header-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: end;
}

.doc-name {
  font-family: 'Spectral', serif;
  font-size: clamp(28px, 6vw, 42px);
  font-weight: 300;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}

.doc-name em { font-weight: 600; font-style: normal; }

.doc-designation {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--scholar-mid);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-top: 7px;
}

.doc-contact {
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 2.5px;
  padding-bottom: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-light);
}

.doc-contact a { color: var(--scholar-mid); text-decoration: none; }

.env-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  background: var(--scholar-light);
  border: 1px solid var(--scholar-border);
  color: var(--scholar-mid);
  padding: 2px 8px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 7px;
}

.doc-title {
  font-family: 'Spectral', serif;
  font-size: clamp(26px, 5vw, 36px);
  font-weight: 300;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}

.doc-title em { font-weight: 600; font-style: normal; }

.doc-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--scholar-mid);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-top: 7px;
}

.meta-col {
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-align: right;
  padding-bottom: 3px;
}

.meta-line {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-light);
  line-height: 1.5;
}

.meta-line span { color: var(--ink-mid); font-weight: 500; }
.meta-line a { color: var(--p1); text-decoration: none; font-weight: 500; }

/* Context / intro blocks */
.context-block {
  background: var(--scholar-light);
  border: 1px solid var(--scholar-border);
  border-left: 3px solid var(--scholar);
  padding: 11px 15px;
  margin-bottom: 18px;
}

.ctx-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--scholar-mid);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 5px;
}

.ctx-text {
  font-family: 'Spectral', serif;
  font-size: 13px;
  font-style: italic;
  color: var(--scholar);
  line-height: 1.65;
  font-weight: 300;
}

/* Doc link banner */
.doc-banner {
  margin: 0 0 18px 0;
  padding: 10px 14px;
  background: rgba(255,255,255,0.03);
  border-left: 3px solid;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.doc-banner-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #888;
}

.doc-banner-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid;
  padding: 6px 14px;
  transition: all 0.2s;
}

/* Section headers */
.sec {
  margin-top: 16px;
  margin-bottom: 11px;
}

.sec-rule {
  height: 1px;
  background: var(--rule);
  margin-bottom: 6px;
}

.sec-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-light);
  display: flex;
  align-items: center;
  gap: 7px;
}

.sec-title::before { content: '§'; color: var(--rule); font-size: 11px; font-weight: 300; }

/* Doc footer */
.doc-footer {
  margin-top: 14px;
  padding-top: 9px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.doc-footer-l {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
}

.doc-footer-r {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--scholar-mid);
  letter-spacing: 0.08em;
}

.doc-footer-r a { color: inherit; text-decoration: none; }

/* Tags */
.tags { display: flex; flex-wrap: wrap; gap: 3px; margin-top: 5px; }

.tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-light);
  background: var(--parchment-warm);
  border: 1px solid var(--rule);
  padding: 1px 6px;
  letter-spacing: 0.04em;
}

.tag.r { background: var(--scholar-light); border-color: var(--scholar-border); color: var(--scholar-mid); }
.tag.g { background: var(--p1-bg); border-color: var(--p1-border); color: var(--p1); }

/* Badges */
.badge-p1 { color: var(--p1); background: var(--p1-bg); border: 1px solid var(--p1-border); }
.badge-p2 { color: var(--p2); background: var(--p2-bg); border: 1px solid var(--p2-border); }
.badge-p3 { color: var(--p3); background: var(--p3-bg); border: 1px solid var(--p3-border); }

/* ─────────────────────────────────────────────
   RESPONSIVE — single clean breakpoint system
   ───────────────────────────────────────────── */

/* Tablet */
@media (max-width: 900px) {
  .pillar-row { grid-template-columns: 1fr 1fr; }
  .about-inner { gap: 24px; }
}

/* Mobile */
@media (max-width: 680px) {
  /* Nav */
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  /* Index hero */
  .hero { padding: 32px 16px 28px; }
  .hero-role { font-size: 10px; letter-spacing: 0.12em; }
  .hero-thesis { padding: 16px; }
  .hero-contact { gap: 6px 16px; }

  /* Index sections */
  .section-wrap { padding: 28px 16px; }
  .nav-cards { grid-template-columns: 1fr; }
  .about-strip { padding: 24px 16px; }
  .about-inner { grid-template-columns: 1fr; gap: 20px; }
  .pillars { padding: 28px 16px; }
  .pillar-row { grid-template-columns: 1fr; }

  /* Site footer */
  .site-footer { padding: 20px 16px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 4px; }

  /* A4 inner pages — drop the A4 constraint entirely */
  .page {
    width: 100%;
    min-height: unset;
    grid-template-columns: 1fr;
    display: block;
  }

  .margin { display: none; }

  .content {
    padding: 20px 16px 28px;
    font-size: 13px; /* readable on mobile */
  }

  /* Scale up inner-page text for mobile readability */
  .ctx-text    { font-size: 14px; }
  .doc-name    { font-size: 32px; }
  .doc-title   { font-size: 28px; }
  .sec-title   { font-size: 9px; }
  .meta-line   { font-size: 10px; }

  .doc-header-inner { grid-template-columns: 1fr; }
  .meta-col { text-align: left; margin-top: 12px; }

  /* CV specific */
  .job { grid-template-columns: 1fr; gap: 6px; }
  .lower { grid-template-columns: 1fr; gap: 16px; }
  .skill-row { grid-template-columns: 80px 1fr; }

  /* Portfolio specific */
  .stats { grid-template-columns: 1fr 1fr; }
  .game-grid { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: 1fr; }
  .zombita-row { grid-template-columns: 1fr; gap: 12px; }
  .zr-stats { justify-content: flex-start; }

  /* Prison/Shadows specific */
  .rationale-grid { grid-template-columns: 1fr; }
  .agent-grid { grid-template-columns: 1fr 1fr; }
  .faction-grid { grid-template-columns: 1fr 1fr; }
  .status-note { grid-template-columns: 1fr; gap: 4px; }
  .contrast th, .contrast td { font-size: 10px; padding: 6px 8px; }
  .var-table td { font-size: 10px; }
  .vt-c { width: auto; }

  /* Zombita specific */
  .pillars-grid { grid-template-columns: 1fr; }
  .scale { grid-template-columns: 1fr 1fr 1fr; }
  .comp-grid { grid-template-columns: 1fr; }
}

@media (max-width: 400px) {
  .agent-grid { grid-template-columns: 1fr; }
  .faction-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .scale { grid-template-columns: 1fr 1fr; }
}