/* ===========================================================
   Vivek Kashyap — personal site
   One stylesheet for every page. Colours live as variables at
   the top; change them here and the whole site follows.
   =========================================================== */

/* ---------- colours ---------- */

:root,
:root[data-theme="dark"] {
  --ground:  #111110;   /* page background          */
  --ink:     #EDEDEA;   /* main text                */
  --muted:   #85857F;   /* secondary text           */
  --faint:   #5C5C57;   /* dates, small labels      */
  --line:    #292927;   /* hairline dividers        */
  --line-hi: #EDEDEA;   /* strong dividers          */
  --accent:  #E0492F;   /* the one red mark         */
  --hover:   #1A1A18;   /* row hover background     */
}

:root[data-theme="light"] {
  --ground:  #F1F1EF;
  --ink:     #0F0F0F;
  --muted:   #76767A;
  --faint:   #9A9A9E;
  --line:    #DCDCD8;
  --line-hi: #0F0F0F;
  --accent:  #C43520;
  --hover:   #E7E7E4;
}

/* ---------- reset ---------- */

*,
*::before,
*::after { box-sizing: border-box; }

body,
h1, h2, h3, p, figure { margin: 0; }

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

/* ---------- base ---------- */

body {
  background: var(--ground);
  color: var(--ink);
  font-family: "Helvetica Neue", ui-sans-serif, -apple-system, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .18s ease, color .18s ease;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

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

.page {
  max-width: 50rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 6rem;
}

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

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line-hi);
}

.brand {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.site-nav {
  display: flex;
  gap: 1.1rem;
}

.site-nav a {
  font-size: .78rem;
  color: var(--muted);
  text-decoration: none;
}

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

.site-nav a[aria-current="page"] { color: var(--ink); }

.site-nav a[aria-current="page"]::after {
  content: "\25CF";                 /* small filled circle */
  color: var(--accent);
  font-size: .38rem;
  vertical-align: .28em;
  margin-left: .3em;
}

.theme-btn {
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  display: grid;
  place-items: center;
  background: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--muted);
  cursor: pointer;
}

.theme-btn:hover {
  color: var(--ink);
  border-color: var(--line-hi);
}

.theme-btn svg { fill: currentColor; }

/* ---------- shared section label ---------- */

main { padding-top: 2.6rem; }

.section-label {
  font-size: .6rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--line-hi);
}

/* ===========================================================
   INTRO PAGE
   =========================================================== */

.intro-top {
  display: flex;
  gap: 1.6rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.portrait {
  width: 7rem;
  height: 8.4rem;
  flex-shrink: 0;
  border: 1px solid var(--line);
  object-fit: cover;
  object-position: center top;     /* keep the head in frame when cropping */
}

.intro-lead {
  flex: 1;
  min-width: 15rem;
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.intro-lead h1 {
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -.035em;
  line-height: 1.03;
  text-wrap: balance;
}

.role {
  font-size: .82rem;
  color: var(--muted);
}

.socials {
  display: flex;
  gap: .55rem;
}

.socials a {
  width: 1.9rem;
  height: 1.9rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--muted);
  text-decoration: none;
}

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

.socials svg {
  width: .95rem;
  height: .95rem;
  fill: currentColor;
}

.about {
  display: flex;
  flex-direction: column;
  gap: .9rem;
  margin-top: 2.6rem;
}

.about p {
  font-size: .93rem;
}

.about p + p { color: var(--muted); }

.interests {
  display: flex;
  flex-direction: column;
  margin-top: 2.6rem;
}

.interests .section-label { margin-bottom: .2rem; }

.int-row {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: .72rem 0;
  border-bottom: 1px solid var(--line);
  font-size: .85rem;
}

.int-row .k { font-weight: 600; }
.int-row .v { color: var(--muted); }

/* ===========================================================
   LIST ROWS — used by both blog and projects
   =========================================================== */

.rows {
  display: flex;
  flex-direction: column;
}

.row {
  display: grid;
  gap: .4rem 1rem;
  align-items: baseline;
  width: 100%;
  padding: .95rem .5rem .95rem 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}

.row:hover { background: var(--hover); }
.row:hover .title { color: var(--accent); }
.row:hover .gh { color: var(--accent); }

.row .title {
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: -.012em;
}

.row .desc {
  font-size: .82rem;
  color: var(--muted);
}

.row .date {
  font-size: .68rem;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.row .ix {
  font-size: .62rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: .05em;
}

.row .gh {
  font-size: .62rem;
  color: var(--faint);
  letter-spacing: .12em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* blog: title on the left, date on the right */
.blog-row { grid-template-columns: 1fr auto; }

/* projects: number, name, year, github — description spans below */
.proj-row { grid-template-columns: 2rem 1fr auto auto; }
.proj-row .ix { grid-row: span 2; }
.proj-row .desc { grid-column: 2 / -1; }

/* ===========================================================
   BLOG POST PAGE
   =========================================================== */

.back {
  display: inline-block;
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
}

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

.post {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  margin-top: 1.8rem;
}

.post-head {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.post-head h1 {
  font-size: clamp(1.4rem, 4vw, 1.85rem);
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1.12;
  text-wrap: balance;
}

.post-date {
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.post-body {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.post-body p {
  font-size: .95rem;
  line-height: 1.72;
}

.post-body h2 {
  margin-top: .8rem;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: -.01em;
}

.post-body a { color: var(--accent); }

.post-body code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: .84em;
  background: var(--hover);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: .1em .35em;
}

.post-body pre {
  overflow-x: auto;
  background: var(--hover);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: .9rem 1rem;
}

.post-body pre code {
  background: none;
  border: 0;
  padding: 0;
}

/* ===========================================================
   SMALL SCREENS
   =========================================================== */

@media (max-width: 560px) {
  .proj-row { grid-template-columns: 1.6rem 1fr auto; }
  .proj-row .gh { grid-column: 2 / -1; }
  .int-row { grid-template-columns: 1fr; gap: .15rem; }
}