/* anup.info — editorial */

@view-transition { navigation: auto; }

:root {
  --paper:    #F4F5F4;
  --paper-2:  #E7EAE7;
  --ink:      #11141a;
  --ink-soft: #1d2128;
  --muted:    #7d8389;
  --rule:     #c2c8c5;
  --accent:   oklch(0.42 0.07 350);
  --hairline: 0.5px;

  --display: "Newsreader", "Cormorant Garamond", "EB Garamond", Georgia, serif;
  --serif:   "EB Garamond", "Newsreader", Georgia, "Times New Roman", serif;
  --sans:    "Inter Tight", "Helvetica Neue", -apple-system, system-ui, sans-serif;

  --max-w: 1180px;
  --pad-x: clamp(20px, 4vw, 56px);
  --pad-y: clamp(36px, 6vh, 80px);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:    #1c1d22;
    --paper-2:  #262830;
    --ink:      #ece9e2;
    --ink-soft: #dbd6cb;
    --muted:    #8a857a;
    --rule:     #3a3b42;
    --accent:   oklch(0.80 0.12 35);
  }
}

:root[data-theme="dark"] {
  --paper:    #1c1d22;
  --paper-2:  #262830;
  --ink:      #ece9e2;
  --ink-soft: #dbd6cb;
  --muted:    #8a857a;
  --rule:     #3a3b42;
  --accent:   oklch(0.80 0.12 35);
}
:root[data-theme="light"] {
  --paper:    #F4F5F4;
  --paper-2:  #E7EAE7;
  --ink:      #11141a;
  --ink-soft: #1d2128;
  --muted:    #7d8389;
  --rule:     #c2c8c5;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga", "kern", "onum";
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }

::selection { background: color-mix(in oklab, var(--accent) 30%, transparent); }

/* theme toggle */
.theme-toggle {
  position: fixed;
  top: 14px;
  right: var(--pad-x);
  z-index: 60;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border-radius: 50%;
  color: var(--muted);
  transition: color 180ms, background 180ms, transform 180ms;
}
.theme-toggle:hover {
  color: var(--ink);
  background: color-mix(in oklab, var(--paper-2) 60%, transparent);
}
.theme-toggle:active { transform: scale(0.94); }
.theme-toggle svg { width: 16px; height: 16px; display: block; }
.theme-toggle .mode-label {
  position: absolute;
  top: 36px;
  right: 0;
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  transition: opacity 180ms;
  pointer-events: none;
  white-space: nowrap;
}
.theme-toggle:hover .mode-label { opacity: 1; }
@media (max-width: 600px) {
  .theme-toggle { top: 10px; }
}

/* chrome */
.chrome-top {
  position: fixed; left: 0; right: 0; top: 0;
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px var(--pad-x);
  font-family: var(--sans);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted);
  z-index: 50;
  pointer-events: none;
}
.chrome-top > * { pointer-events: auto; }
.chrome-top .mark {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 0;
  color: var(--ink);
  text-transform: none;
}
.chrome-top .mark em { color: var(--accent); font-style: normal; }

/* shared layout */
.shell {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: calc(var(--pad-y) + 24px) var(--pad-x) var(--pad-y);
  min-height: 100vh;
}

.eyebrow {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px; height: 1px;
  background: var(--muted);
}

/* landing */
.page-landing .shell {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: clamp(18px, 2.4vh, 28px);
  padding-top: clamp(72px, 10vh, 120px);
  padding-bottom: clamp(72px, 10vh, 120px);
}

.landing-links-wrap {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 10;
  background: linear-gradient(to top,
    var(--paper) 60%,
    color-mix(in oklab, var(--paper) 80%, transparent) 100%);
  padding: 22px var(--pad-x) calc(22px + env(safe-area-inset-bottom));
}
.landing-links-wrap .landing-links {
  max-width: var(--max-w);
  margin: 0 auto;
}

.landing-name {
  margin: 0;
  font-family: var(--display);
  font-weight: 350;
  font-size: clamp(56px, 9.2vw, 132px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--ink);
  view-transition-name: anup-name;
  max-width: 14ch;
}
.landing-name .first { display: inline; }
.landing-name .last {
  display: inline;
  font-style: italic;
  font-weight: 350;
}
.landing-name .last::after {
  content: ".";
  color: var(--accent);
  view-transition-name: accent-mark;
}

.landing-punchline {
  margin: 0;
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.35;
  color: var(--ink-soft);
  white-space: nowrap;
  view-transition-name: punchline;
  position: relative;
  padding-left: 1.2em;
}
.landing-punchline::before {
  content: "“";
  position: absolute;
  left: 0; top: -0.18em;
  font-size: 1.6em;
  color: var(--accent);
  opacity: 0.55;
  line-height: 1;
}

.landing-links {
  display: flex;
  gap: clamp(20px, 3vw, 40px);
  flex-wrap: wrap;
  align-items: baseline;
  padding-top: 18px;
  border-top: var(--hairline) solid var(--rule);
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.landing-links a {
  position: relative;
  padding: 4px 2px;
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--ink);
  transition: color 200ms;
}
.landing-links a .ico {
  display: block;
  transition: transform 240ms cubic-bezier(.2,.8,.2,1);
}
.landing-links a:hover .ico { transform: translateY(-1px) scale(1.05); }
.landing-links a .meta {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--muted);
  opacity: 0;
  transform: translateY(-2px);
  transition: opacity 220ms, transform 220ms;
}
.landing-links a:hover { color: var(--accent); }
.landing-links a:hover .meta { opacity: 1; transform: translateY(0); }
.landing-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px; background: currentColor;
  transition: right 280ms cubic-bezier(.2,.8,.2,1);
}
.landing-links a:hover::after { right: 0; }

.landing-links a[data-link="github"]   { view-transition-name: link-github; }
.landing-links a[data-link="linkedin"] { view-transition-name: link-linkedin; }
.landing-links a[data-link="email"]    { view-transition-name: link-email; }
.landing-links a[data-link="timeline"] {
  view-transition-name: link-timeline;
  margin-left: auto;
  font-style: italic;
  font-family: var(--display);
  font-size: 17px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--accent);
}
.landing-links a[data-link="timeline"] .arrow {
  display: inline-block;
  transition: transform 260ms cubic-bezier(.2,.8,.2,1);
}
.landing-links a[data-link="timeline"]:hover .arrow { transform: translateX(6px); }

/* vertical meta — auto-centers on its own length */
.landing-meta {
  position: fixed;
  right: var(--pad-x);
  top: 50%;
  writing-mode: vertical-rl;
  text-orientation: sideways;
  transform: translateY(-50%);
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
  pointer-events: none;
}

/* about page */
.page-timeline .shell {
  padding-bottom: 120px;
}

.tl-header {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(48px, 8vh, 96px);
  text-align: center;
}
.tl-header .eyebrow {
  justify-self: center;
  view-transition-name: eyebrow;
}
.tl-header .eyebrow::before { display: none; }

.tl-header .name {
  margin: 0;
  font-family: var(--display);
  font-weight: 350;
  font-size: clamp(48px, 7vw, 96px);
  line-height: 1;
  letter-spacing: -0.02em;
  view-transition-name: anup-name;
}
.tl-header .name .first { font-style: normal; }
.tl-header .name .last  { font-style: italic; }
.tl-header .name .last::after {
  content: ".";
  color: var(--accent);
  view-transition-name: accent-mark;
}

.about-body {
  max-width: 640px;
  margin: clamp(48px, 8vh, 80px) auto 0;
}
.about-body section {
  margin-bottom: clamp(32px, 5vh, 48px);
}
.about-body section:last-child { margin-bottom: 0; }
.about-body h2 {
  margin: 0 0 14px;
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.15;
  letter-spacing: -0.005em;
  color: var(--accent);
}
.about-body p {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(17px, 1.4vw, 19px);
  line-height: 1.65;
  color: var(--ink);
  text-wrap: pretty;
}
.about-body p strong {
  font-weight: 500;
  font-style: italic;
}
.about-body p a {
  color: var(--accent);
  border-bottom: 1px solid color-mix(in oklab, var(--accent) 35%, transparent);
  transition: border-color 200ms, color 200ms;
}
.about-body p a:hover { border-bottom-color: var(--accent); }

/* footer */
.tl-footer {
  position: sticky;
  bottom: 0;
  margin: 80px calc(var(--pad-x) * -1) 0;
  padding: 18px var(--pad-x);
  display: grid;
  grid-template-columns: minmax(0, var(--max-w));
  justify-content: center;
  align-items: center;
  border-top: var(--hairline) solid var(--rule);
  background: color-mix(in oklab, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 40;
}
.tl-footer .back {
  position: relative;
  font-family: var(--display);
  font-style: italic;
  font-size: 17px;
  color: var(--ink);
  view-transition-name: link-back;
  justify-self: start;
  margin-left: clamp(8px, 3vw, 40px);
}
.tl-footer .back::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: -2px;
  height: 1px; background: currentColor;
  transition: right 280ms cubic-bezier(.2,.8,.2,1);
}
.tl-footer .back:hover::after { right: 0; }
.tl-footer .back .arrow {
  display: inline-block;
  transition: transform 260ms cubic-bezier(.2,.8,.2,1);
}
.tl-footer .back:hover { color: var(--accent); }
.tl-footer .back:hover .arrow { transform: translateX(-6px); }

/* view-transition timing */
::view-transition-group(*) {
  animation-duration: 700ms;
  animation-timing-function: cubic-bezier(0.65, 0, 0.1, 1);
}
::view-transition-old(root),
::view-transition-new(root) { animation-duration: 480ms; }
::view-transition-group(anup-name) { animation-duration: 800ms; }
::view-transition-group(accent-mark) {
  animation-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes ed-out { to { opacity: 0; transform: translateY(-8px); } }
@keyframes ed-in  { from { opacity: 0; transform: translateY(8px); } }
::view-transition-old(link-github),
::view-transition-old(link-linkedin),
::view-transition-old(link-email) { animation: ed-out 420ms ease-in both; }
::view-transition-new(link-back)  { animation: ed-in 600ms 200ms cubic-bezier(.2,.8,.2,1) both; }

/* responsive */
@media (max-width: 760px) {
  .landing-meta { display: none; }
  .landing-links { gap: 18px; }
  .landing-links a[data-link="timeline"] { margin-left: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) { animation-duration: 1ms !important; }
}