/* ---------------------------------------------------------------
   aayush4vedi.com — minimal black & white portfolio
   Typography: Newsreader (same as darioamodei.com).
   Layout cues: debarghyadas.com (logo rows, pill "view all").
   --------------------------------------------------------------- */

@import url("https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400..700;1,6..72,400..700&display=swap");

:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #6b6b6b;
  --border: #e6e6e6;
  --code-bg: #f5f5f5;
  --ok: #1a7f37;
  --bad: #b3261e;
}

[data-theme="sepia"] {
  --bg: #f4ecd8;
  --text: #5b4636;
  --muted: #8a7560;
  --border: #e0d3b8;
  --code-bg: #ece0c8;
}

[data-theme="dark"] {
  --bg: #0f0f0f;
  --text: #e8e8e8;
  --muted: #9a9a9a;
  --border: #2a2a2a;
  --code-bg: #1c1c1c;
  --ok: #3fb950;
  --bad: #f85149;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 18px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Newsreader", Charter, Georgia, serif;
  font-optical-sizing: auto;
  line-height: 1.65;
  transition: background 0.2s ease, color 0.2s ease;
}

.container {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: var(--text);
}

/* ---- header / nav ---- */

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 3.5rem;
}

.site-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.site-name a {
  color: var(--text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.85rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
}

.site-nav a.active {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.theme-toggle {
  position: relative;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
  background: var(--bg);
  border: 1px solid var(--text);
  border-radius: 999px;
  padding: 0;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.theme-toggle::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--text);
  transition: transform 0.25s ease;
}

[data-theme="sepia"] .theme-toggle::before {
  transform: translateX(10px);
}

[data-theme="dark"] .theme-toggle::before {
  transform: translateX(20px);
}

/* ---- home intro ---- */

h1 {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 1rem;
}

.intro p {
  font-size: 1.08rem;
  margin: 0 0 0.75rem;
}

.muted {
  color: var(--muted);
}

/* ---- sections ---- */

section {
  margin-top: 3rem;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 1.1rem;
}

.section-head h2 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

.view-all {
  font-size: 0.78rem;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
  line-height: 1;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.view-all:hover {
  color: var(--text);
  border-color: var(--text);
  text-decoration: none;
}

/* ---- career ---- */

.career {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.35rem 2rem;
}

.career li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.55rem 0;
}

.career .role a {
  text-decoration: none;
}

.career .role a:hover {
  text-decoration: underline;
}

.career .logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  flex-shrink: 0;
  object-fit: contain;
}

.career .logo-lg {
  width: 48px;
  height: 48px;
  border-radius: 10px;
}

.career .role {
  flex: 1;
  line-height: 1.4;
}

.career .role strong {
  font-weight: 600;
}

.career .desc {
  color: var(--muted);
  font-size: 0.92rem;
}

.career .award {
  position: relative;
  font-size: 0.85rem;
  cursor: help;
}

.career .award::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  font-size: 0.72rem;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease;
  z-index: 10;
}

.career .award:hover::after {
  opacity: 1;
  visibility: visible;
}

.career .when {
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

/* ---- post lists ---- */

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

.post-list li {
  padding: 0.5rem 0;
}

.post-list .post-title {
  font-size: 1.08rem;
  font-weight: 600;
}

.post-list .post-title a {
  text-decoration: none;
}

.post-list .post-title a:hover {
  text-decoration: underline;
  text-decoration-color: var(--text);
}

.post-list .post-meta {
  color: var(--muted);
  font-size: 0.85rem;
}

/* company badge next to a post title (e.g. published on Uber's blog) */
.post-badge {
  position: relative;
  display: inline-block;
  margin-left: 0.45rem;
  vertical-align: -3px;
  cursor: help;
}

.post-badge img {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  display: block;
}

.post-badge::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  font-size: 0.72rem;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease;
  z-index: 10;
}

.post-badge:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ---- books ---- */

.book-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.75rem 0 0.5rem;
}

.book-nav a {
  font-size: 0.78rem;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
  line-height: 1;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.book-nav a:hover {
  color: var(--text);
  border-color: var(--text);
}

.book-section {
  margin-top: 2.75rem;
  scroll-margin-top: 1.5rem;
}

.book-section + .book-section {
  border-top: 1px solid var(--border);
  padding-top: 1.75rem;
}

.b-title {
  color: var(--text);
}

.b-author {
  color: var(--muted);
  font-size: 0.95em;
}

.book-year {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.book-genre {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 1rem 0 0.25rem;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

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

.book-list li {
  padding: 0.15rem 0;
}

.book-comment {
  color: var(--muted);
  font-style: italic;
  font-size: 0.9rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
}

/* ---- articles ---- */

.post h1 {
  margin-bottom: 0.35rem;
}

.post .post-date {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 2rem;
}

.post h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 2.25rem 0 0.75rem;
}

.post h3 {
  font-size: 1.12rem;
  font-weight: 600;
  margin: 1.75rem 0 0.5rem;
}

.post p {
  margin: 0 0 1.1rem;
}

.post blockquote {
  margin: 1.5rem 0;
  padding: 0.25rem 0 0.25rem 1.25rem;
  border-left: 2px solid var(--text);
  color: var(--muted);
  font-style: italic;
}

.post figure {
  margin: 2rem 0;
  text-align: center;
}

.post figure img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

.post figcaption {
  color: var(--muted);
  font-size: 0.85rem;
  font-style: italic;
  margin-top: 0.5rem;
}

.post code,
.post kbd {
  background: var(--code-bg);
  border-radius: 3px;
  padding: 0.1em 0.35em;
  font-size: 0.85em;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

.tldr {
  background: var(--code-bg);
  border-radius: 6px;
  padding: 0.85rem 1.1rem;
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.post .post-cover {
  margin: 0 0 1.75rem;
}

.post .post-cover img {
  border-radius: 8px;
}

.post-links {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.post-links a {
  font-size: 0.82rem;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--text);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
}

.post-links a:hover {
  background: var(--text);
  color: var(--bg);
}

/* ---- story chapters + evaluator cards ---- */

.post h2.chapter {
  text-align: center;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 3rem 0 1.25rem;
}

.eval {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--code-bg);
  padding: 1rem 1.1rem;
  margin: 1.75rem 0;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.88rem;
}

.eval .eval-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.65rem;
}

.eval .eval-q {
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.eval .opt {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  padding: 0.6rem 0.8rem;
  margin: 0.5rem 0;
  transition: opacity 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.eval .opt.accepted:hover {
  box-shadow: 0 0 0 1px var(--ok);
}

.eval .opt.rejected:hover {
  opacity: 1;
  border-color: var(--bad);
}

.eval .opt-key {
  font-weight: 700;
  color: var(--muted);
  flex-shrink: 0;
}

.eval .opt-text {
  flex: 1;
}

.eval .verdict {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
  flex-shrink: 0;
}

.eval .opt.accepted {
  border-color: var(--ok);
}

.eval .opt.accepted .verdict {
  color: var(--ok);
}

.eval .opt.rejected {
  opacity: 0.6;
}

.eval .opt.rejected .verdict {
  color: var(--bad);
}

.eval .eval-note {
  font-size: 0.74rem;
  color: var(--muted);
  margin-top: 0.55rem;
}

.eval .rate-opts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  margin-top: 0.65rem;
}

.eval .rate-opts label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}

.eval .rate-opts input[type="radio"] {
  accent-color: var(--text);
  cursor: pointer;
}

.eval .rate-response {
  margin: 0.85rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  opacity: 0;
  transition: opacity 0.8s ease;
}

.eval .rate-response.show {
  opacity: 1;
}

.post pre {
  background: var(--code-bg);
  border-radius: 6px;
  padding: 0.9rem 1.1rem;
  margin: 1.25rem 0;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.55;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

.post pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

.post table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.post th,
.post td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.post th {
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.post ul,
.post ol {
  margin: 0 0 1.1rem;
  padding-left: 1.4rem;
}

.post li {
  margin-bottom: 0.35rem;
}

.tldr .refs {
  font-size: 0.78rem;
  color: var(--muted);
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

.tldr .refs a {
  color: var(--muted);
}

.back-link {
  display: inline-block;
  margin-top: 2.5rem;
  font-size: 0.82rem;
  font-family: ui-sans-serif, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
}

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

/* ---- footer ---- */

.site-footer {
  margin-top: 4.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer .social {
  display: flex;
  gap: 1rem;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--text);
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

@media (max-width: 540px) {
  html {
    font-size: 17px;
  }

  .career .when {
    display: none;
  }
}