/* ============================================================
   Shreya Shivangi — portfolio
   Tokens → base → layout → components → responsive
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --paper:    #f7f4ed;
  --paper-2:  #efeade;
  --paper-3:  #e6e0d1;
  --ink:      #17140f;
  --ink-2:    #4d463b;
  --ink-3:    #7f7768;
  --line:     #ddd5c4;
  --line-2:   #cbc2ad;
  --accent:   #a8401e;
  --accent-w: #f0e2d8;
  --cool:     #1f3d4d;

  --ff-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --ff-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ff-mono:    "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1140px;
  --gut: clamp(20px, 5vw, 64px);
  --r: 14px;
  --shadow: 0 1px 2px rgba(23,20,15,.04), 0 12px 32px -18px rgba(23,20,15,.28);
}

:root[data-theme="dark"],
html.dark {
  --paper:    #121110;
  --paper-2:  #1a1917;
  --paper-3:  #23211e;
  --ink:      #f3efe6;
  --ink-2:    #b9b2a5;
  --ink-3:    #877f71;
  --line:     #2d2a26;
  --line-2:   #3d3934;
  --accent:   #e5794f;
  --accent-w: #2a1e18;
  --cool:     #8fbccd;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 16px 40px -20px rgba(0,0,0,.8);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:    #121110;
    --paper-2:  #1a1917;
    --paper-3:  #23211e;
    --ink:      #f3efe6;
    --ink-2:    #b9b2a5;
    --ink-3:    #877f71;
    --line:     #2d2a26;
    --line-2:   #3d3934;
    --accent:   #e5794f;
    --accent-w: #2a1e18;
    --cool:     #8fbccd;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 16px 40px -20px rgba(0,0,0,.8);
  }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ff-body);
  font-size: 17px;
  line-height: 1.65;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--ff-display);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0;
  font-variation-settings: "SOFT" 0, "WONK" 1, "opsz" 40;
}

p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

::selection { background: var(--accent); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--ink); color: var(--paper);
  padding: 12px 18px; border-radius: 0 0 8px 0; font-size: 14px;
}
.skip:focus { left: 0; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }

section { position: relative; }
.band { padding-block: clamp(64px, 9vw, 128px); }
.band + .band { border-top: 1px solid var(--line); }
.band--tint { background: var(--paper-2); }

.eyebrow {
  font-family: var(--ff-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex; align-items: center; gap: 12px;
  margin: 0 0 26px;
}
.eyebrow::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.eyebrow b { font-weight: 500; color: var(--accent); }

.sec-title { font-size: clamp(30px, 4.4vw, 50px); max-width: 22ch; margin-bottom: 14px; }
.sec-lede { color: var(--ink-2); max-width: 62ch; font-size: clamp(16px, 1.6vw, 18.5px); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
.nav.is-stuck { border-bottom-color: var(--line); }
.nav__in {
  display: flex; align-items: center; gap: 20px;
  height: 62px;
  max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut);
}
.nav__brand {
  font-family: var(--ff-display); font-size: 19px; letter-spacing: -.02em;
  text-decoration: none; margin-right: auto; white-space: nowrap;
}
.nav__brand span { color: var(--accent); }
.nav__links { display: flex; gap: 4px; }
.nav__links a {
  text-decoration: none; font-size: 14px; color: var(--ink-2);
  padding: 7px 11px; border-radius: 999px; transition: color .2s, background .2s;
}
.nav__links a:hover { color: var(--ink); background: var(--paper-3); }
.nav__links a[aria-current="true"] { color: var(--ink); background: var(--paper-3); }

.tog {
  width: 36px; height: 36px; flex: none;
  display: grid; place-items: center;
  border: 1px solid var(--line); background: transparent; color: var(--ink-2);
  border-radius: 999px; cursor: pointer; transition: color .2s, border-color .2s, transform .2s;
}
.tog:hover { color: var(--ink); border-color: var(--line-2); transform: rotate(-18deg); }
.tog svg { width: 16px; height: 16px; }
.tog .moon { display: none; }
:root[data-theme="dark"] .tog .sun { display: none; }
:root[data-theme="dark"] .tog .moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .tog .sun { display: none; }
  :root:not([data-theme="light"]) .tog .moon { display: block; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 15px; font-weight: 500; text-decoration: none;
  padding: 13px 22px; border-radius: 999px;
  border: 1px solid var(--ink); background: var(--ink); color: var(--paper);
  transition: transform .18s ease, box-shadow .18s ease, background .18s, color .18s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -12px rgba(0,0,0,.5); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--ink); }
.btn svg { width: 15px; height: 15px; }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(52px, 8vw, 104px) clamp(56px, 8vw, 100px); overflow: hidden; }
.hero__grid {
  display: grid; grid-template-columns: minmax(0,1.35fr) minmax(0,.85fr);
  gap: clamp(32px, 5vw, 72px); align-items: center;
}

.pill {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--ff-mono); font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-2); border: 1px solid var(--line); background: var(--paper-2);
  padding: 7px 15px 7px 11px; border-radius: 999px; margin-bottom: 26px;
}
.dot {
  width: 7px; height: 7px; border-radius: 50%; background: #35a35f; flex: none;
  box-shadow: 0 0 0 0 rgba(53,163,95,.55); animation: pulse 2.6s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 8px rgba(53,163,95,0); }
  100% { box-shadow: 0 0 0 0 rgba(53,163,95,0); }
}
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }

.hero h1 {
  font-size: clamp(40px, 6vw, 72px);
  max-width: 15ch;
  letter-spacing: -.032em;
  margin-bottom: 24px;
}
.hero h1 em {
  font-style: italic; color: var(--accent);
  font-variation-settings: "SOFT" 40, "WONK" 1, "opsz" 60;
}
.hero__lede { font-size: clamp(17px, 1.9vw, 20.5px); color: var(--ink-2); max-width: 54ch; }
.hero__lede strong { color: var(--ink); font-weight: 600; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.hero__meta {
  display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 34px;
  font-family: var(--ff-mono); font-size: 12px; color: var(--ink-3);
  letter-spacing: .04em;
}
.hero__meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero__meta span::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--line-2); }

.portrait { position: relative; }
.portrait__frame {
  position: relative; border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow);
  background: var(--paper-2);
}
.portrait__frame img { width: 100%; filter: saturate(.94) contrast(1.02); }
.portrait::before {
  content: ""; position: absolute; inset: 16px -16px -16px 16px;
  border: 1px solid var(--accent); border-radius: var(--r); opacity: .45; z-index: -1;
}
.portrait__tag {
  position: absolute; left: -14px; bottom: 22px;
  background: var(--ink); color: var(--paper);
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
  padding: 9px 14px; border-radius: 8px; box-shadow: var(--shadow);
}

/* ---------- Marquee ---------- */
.marquee {
  border-block: 1px solid var(--line); background: var(--paper-2);
  padding-block: 18px; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track { display: flex; width: max-content; animation: slide 42s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }
.marquee__track li {
  font-family: var(--ff-display); font-size: clamp(17px, 2vw, 22px);
  color: var(--ink-3); padding-inline: 26px; white-space: nowrap;
  display: flex; align-items: center; gap: 26px;
}
.marquee__track li::after { content: "◆"; font-size: 7px; color: var(--accent); opacity: .7; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.stat { background: var(--paper); padding: 26px 22px; }
.stat__n {
  font-family: var(--ff-display); font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1; letter-spacing: -.03em; display: block; margin-bottom: 10px;
}
.stat__n i { font-style: normal; color: var(--accent); }
.stat__l { font-size: 13.5px; color: var(--ink-2); line-height: 1.45; display: block; }
.stats-note { font-family: var(--ff-mono); font-size: 11.5px; color: var(--ink-3); margin-top: 16px; }

/* ---------- Capability cards ---------- */
.caps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin-top: 46px; }
.cap { background: var(--paper); padding: 30px 26px 32px; transition: background .25s ease; }
.cap:hover { background: var(--paper-2); }
.cap__n { font-family: var(--ff-mono); font-size: 11.5px; color: var(--accent); letter-spacing: .1em; }
.cap h3 { font-size: 22px; margin: 12px 0 10px; letter-spacing: -.015em; }
.cap p { color: var(--ink-2); font-size: 15.2px; margin: 0; line-height: 1.6; }

/* ---------- Work ---------- */
.work { display: grid; gap: 18px; margin-top: 46px; }
.case {
  border: 1px solid var(--line); border-radius: var(--r); background: var(--paper);
  overflow: hidden; transition: border-color .25s ease, box-shadow .25s ease;
}
.case:hover { border-color: var(--line-2); box-shadow: var(--shadow); }
.case[open] { border-color: var(--line-2); box-shadow: var(--shadow); }

.case > summary {
  list-style: none; cursor: pointer; padding: 26px clamp(20px, 3vw, 32px);
  display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 18px 24px; align-items: start;
}
.case > summary::-webkit-details-marker { display: none; }
.case__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 14px; }
.case__client { font-family: var(--ff-display); font-size: clamp(23px, 2.7vw, 31px); letter-spacing: -.02em; }
.case__sector { font-family: var(--ff-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.case__hook { color: var(--ink-2); font-size: 15.6px; margin: 10px 0 14px; max-width: 68ch; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tag {
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid var(--line); background: var(--paper-2); color: var(--ink-2);
  padding: 5px 10px; border-radius: 999px;
}
.tag--hot { border-color: var(--accent); color: var(--accent); background: var(--accent-w); }

.case__toggle {
  align-self: center; flex: none;
  width: 34px; height: 34px; border-radius: 999px;
  border: 1px solid var(--line); display: grid; place-items: center;
  color: var(--ink-2); transition: transform .3s ease, border-color .2s, color .2s;
}
.case:hover .case__toggle { border-color: var(--ink); color: var(--ink); }
.case[open] .case__toggle { transform: rotate(45deg); }
.case__toggle svg { width: 14px; height: 14px; }

.case__body {
  padding: 0 clamp(20px, 3vw, 32px) 30px;
  display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 30px;
  border-top: 1px solid var(--line); margin-top: 4px; padding-top: 26px;
}
.case__body h4 {
  font-family: var(--ff-mono); font-weight: 500; font-size: 11px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3);
  margin: 0 0 12px;
}
.case__body p { color: var(--ink-2); font-size: 15.4px; }
.did li {
  position: relative; padding-left: 20px; margin-bottom: 10px;
  color: var(--ink-2); font-size: 15.4px; line-height: 1.55;
}
.did li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 7px; height: 1px; background: var(--accent);
}
.result {
  border-left: 2px solid var(--accent); padding: 4px 0 4px 16px;
  font-size: 15.6px; color: var(--ink); margin-top: 4px;
}

/* ---------- Systems ---------- */
.pipe {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  margin-top: 42px;
}
.pipe__step {
  border: 1px solid var(--line); border-radius: var(--r); background: var(--paper);
  padding: 22px 20px; position: relative;
}
.pipe__step::after {
  content: "→"; position: absolute; right: -13px; top: 50%; transform: translateY(-50%);
  color: var(--line-2); font-size: 15px; z-index: 2;
}
.pipe__step:last-child::after { display: none; }
.pipe__k { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .14em; color: var(--accent); text-transform: uppercase; }
.pipe__step h3 { font-size: 19px; margin: 10px 0 8px; }
.pipe__step p { font-size: 14.2px; color: var(--ink-2); margin: 0; }
.pipe__state {
  font-family: var(--ff-mono); font-size: 11px; color: var(--ink-3);
  margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line);
}

.gates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 42px; }
.gate { border: 1px solid var(--line); border-radius: var(--r); padding: 24px 22px; background: var(--paper); }
.gate h3 { font-size: 19.5px; margin-bottom: 10px; }
.gate p { font-size: 14.8px; color: var(--ink-2); margin: 0; }
.gate__rail { display: flex; gap: 6px; margin-bottom: 16px; }
.gate__rail i { height: 3px; flex: 1; background: var(--line-2); border-radius: 2px; }
.gate__rail i:first-child { background: var(--accent); }

/* ---------- Timeline ---------- */
.tl { margin-top: 48px; border-top: 1px solid var(--line); }
.job {
  display: grid; grid-template-columns: 176px minmax(0,1fr);
  gap: clamp(16px, 3vw, 40px);
  padding: 30px 0; border-bottom: 1px solid var(--line);
}
.job__when { font-family: var(--ff-mono); font-size: 12.5px; color: var(--ink-3); letter-spacing: .03em; padding-top: 6px; }
.job__when b { display: block; color: var(--accent); font-weight: 500; margin-bottom: 4px; }
.job__role { font-size: clamp(21px, 2.4vw, 26px); margin-bottom: 3px; }
.job__org { font-family: var(--ff-mono); font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 14px; }
.job ul li {
  position: relative; padding-left: 20px; margin-bottom: 9px;
  color: var(--ink-2); font-size: 15.4px; line-height: 1.58;
}
.job ul li::before { content: ""; position: absolute; left: 0; top: .64em; width: 7px; height: 1px; background: var(--line-2); }
.job ul li b { color: var(--ink); font-weight: 600; }

/* ---------- Toolkit ---------- */
.kit { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px 52px; margin-top: 44px; }
.kit__group h3 {
  font-family: var(--ff-mono); font-weight: 500; font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px;
  padding-bottom: 10px; border-bottom: 1px solid var(--line);
}
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chips li {
  font-size: 13.6px; border: 1px solid var(--line); background: var(--paper);
  padding: 6px 12px; border-radius: 8px; color: var(--ink-2);
  transition: border-color .2s, color .2s;
}
.chips li:hover { border-color: var(--accent); color: var(--ink); }

/* ---------- Education ---------- */
.edu { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin-top: 40px; }
.edu__row { background: var(--paper); padding: 24px 26px; display: grid; grid-template-columns: minmax(0,1fr) 160px; gap: 20px; align-items: center; }
.edu__row h3 { font-size: 20px; margin-bottom: 5px; }
.edu__row p { margin: 0; font-size: 14.6px; color: var(--ink-2); }
.edu__yr { font-family: var(--ff-mono); font-size: 12.5px; color: var(--ink-3); text-align: right; }

/* ---------- Contact ---------- */
.cta { text-align: center; }
.cta h2 { font-size: clamp(34px, 6vw, 68px); letter-spacing: -.03em; margin-inline: auto; max-width: 16ch; }
.cta h2 em { font-style: italic; color: var(--accent); font-variation-settings: "SOFT" 40, "WONK" 1, "opsz" 60; }
.cta p { color: var(--ink-2); max-width: 50ch; margin: 20px auto 34px; font-size: 17.5px; }
.cta__row { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

.foot {
  border-top: 1px solid var(--line); padding-block: 30px;
  display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between;
  font-family: var(--ff-mono); font-size: 11.5px; color: var(--ink-3); letter-spacing: .04em;
}
.foot a { color: var(--ink-2); text-decoration: none; }
.foot a:hover { color: var(--accent); }
.foot ul { display: flex; gap: 18px; }

/* ---------- Reveal ---------- */
.rv { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:last-child { grid-column: 1 / -1; }
  .caps { grid-template-columns: repeat(2, 1fr); }
  .pipe { grid-template-columns: repeat(2, 1fr); }
  .pipe__step:nth-child(2)::after { display: none; }
  .gates { grid-template-columns: 1fr; }
  .nav__links { display: none; }
}

@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; }
  .portrait { max-width: 340px; order: -1; }
  .portrait::before { inset: 12px -12px -12px 12px; }
  .case__body { grid-template-columns: 1fr; gap: 24px; }
  .job { grid-template-columns: 1fr; gap: 10px; }
  .job__when { padding-top: 0; }
  .kit { grid-template-columns: 1fr; }
  .edu__row { grid-template-columns: 1fr; }
  .edu__yr { text-align: left; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .caps { grid-template-columns: 1fr; }
  .pipe { grid-template-columns: 1fr; }
  .pipe__step::after { display: none; }
  .stats { grid-template-columns: 1fr; }
  .stat:last-child { grid-column: auto; }
  .case > summary { grid-template-columns: 1fr; }
  .case__toggle { display: none; }
  .foot { flex-direction: column; align-items: flex-start; }
}

@media print {
  .nav, .marquee, .tog, .cta__row, .case__toggle { display: none !important; }
  .case__body { display: grid !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .band { padding-block: 18px; }
}