/* Shlok Sharma — Product Engineer site */
:root {
  --ink: #14221c;
  --ink-soft: #3a4a42;
  --muted: #6b7a72;
  --line: rgba(20, 34, 28, 0.12);
  --paper: #eef2ef;
  --paper-2: #e3ebe6;
  --surface: rgba(255, 255, 255, 0.72);
  --accent: #1f7a4d;
  --accent-deep: #0f5132;
  --signal: #0b5f8a;
  --glow: rgba(31, 122, 77, 0.18);
  --radius: 14px;
  --max: 1080px;
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  background:
    radial-gradient(1200px 700px at 12% -10%, rgba(31, 122, 77, 0.16), transparent 55%),
    radial-gradient(900px 600px at 92% 8%, rgba(11, 95, 138, 0.1), transparent 50%),
    linear-gradient(180deg, #f2f6f3 0%, var(--paper-2) 42%, #e8f0eb 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.45'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  z-index: 0;
}

a {
  color: var(--accent-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--signal);
}

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

.site-shell {
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(242, 246, 243, 0.78);
  border-bottom: 1px solid var(--line);
}

.site-header__inner,
.site-footer__inner,
.page,
.hero__inner {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
}

.brand {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

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

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
  justify-content: flex-end;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

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

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  font: inherit;
  color: var(--ink);
}

.hero {
  position: relative;
  min-height: min(92vh, 920px);
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
}

.hero__visual {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(242, 246, 243, 0.1) 0%, rgba(242, 246, 243, 0.5) 48%, rgba(227, 235, 230, 0.92) 100%),
    radial-gradient(ellipse 70% 55% at 70% 35%, rgba(31, 122, 77, 0.28), transparent 65%),
    radial-gradient(ellipse 45% 40% at 20% 70%, rgba(11, 95, 138, 0.14), transparent 70%),
    linear-gradient(135deg, #dfe9e1, #eef3f0 45%, #d7e5db);
}

.hero__grid {
  position: absolute;
  inset: 8% 6% auto auto;
  width: min(48vw, 520px);
  aspect-ratio: 4 / 5;
  border-radius: 28px 28px 40px 18px;
  border: 1px solid rgba(20, 34, 28, 0.14);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.28)),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 18px,
      rgba(31, 122, 77, 0.07) 18px,
      rgba(31, 122, 77, 0.07) 19px
    );
  box-shadow: 0 30px 80px rgba(20, 34, 28, 0.12);
  transform: rotate(2.5deg);
  overflow: hidden;
}

.hero__grid::before {
  content: "";
  position: absolute;
  inset: 14% 12% auto;
  height: 38%;
  border-radius: 18px;
  background:
    linear-gradient(135deg, #0f5132, #1f7a4d 55%, #8fbf9a);
  opacity: 0.9;
  animation: floaty 7s var(--ease) infinite alternate;
}

.hero__grid::after {
  content: "Fred · adaptive tutor";
  position: absolute;
  left: 12%;
  bottom: 14%;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.7);
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--line);
}

.hero__inner {
  padding: 7rem 0 4.5rem;
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 5.8rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin: 0 0 1.25rem;
  max-width: 12ch;
  animation: rise 0.9s var(--ease) both;
}

.hero__role {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: 1rem;
  animation: rise 0.9s var(--ease) 0.08s both;
}

.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.25;
  max-width: 22ch;
  margin: 0 0 0.9rem;
  animation: rise 0.9s var(--ease) 0.14s both;
}

.hero__lede {
  max-width: 38ch;
  color: var(--ink-soft);
  margin: 0 0 1.8rem;
  animation: rise 0.9s var(--ease) 0.2s both;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: rise 0.9s var(--ease) 0.26s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.78rem 1.2rem;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--ink);
  color: #f2f6f3;
}

.btn--primary:hover {
  background: var(--accent-deep);
  color: #fff;
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.55);
  border-color: var(--line);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.page {
  padding: 3.5rem 0 5rem;
}

.page--narrow {
  width: min(720px, calc(100% - 2.5rem));
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

h1,
.h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin: 0 0 1rem;
  font-weight: 650;
}

h2,
.h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.025em;
  margin: 0 0 0.75rem;
  font-weight: 600;
}

h3,
.h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
  font-weight: 600;
}

.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 58ch;
  margin: 0 0 2rem;
}

.section {
  padding: 4.5rem 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section__inner {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.prose p {
  margin: 0 0 1.15rem;
  max-width: 65ch;
}

.prose p:last-child {
  margin-bottom: 0;
}

.case-hero {
  display: grid;
  gap: 1.5rem;
  margin: 2rem 0 2.5rem;
}

.case-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
  backdrop-filter: blur(8px);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.metric {
  padding: 1rem 1.05rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
}

.metric__value {
  font-family: var(--font-display);
  font-size: 1.7rem;
  letter-spacing: -0.03em;
  color: var(--accent-deep);
}

.metric__label {
  font-size: 0.86rem;
  color: var(--muted);
}

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

.list-clean li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.list-clean li:first-child {
  border-top: 1px solid var(--line);
}

.list-clean a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
}

.list-clean a:hover {
  color: var(--accent-deep);
}

.list-meta {
  display: block;
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 400;
}

.project-row {
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.project-row:first-of-type {
  border-top: 1px solid var(--line);
}

.project-row__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
}

.project-row__title:hover {
  color: var(--accent-deep);
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-deep);
  background: rgba(31, 122, 77, 0.1);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  margin-right: 0.35rem;
}

.resume-block {
  margin: 0 0 2.25rem;
}

.resume-block h2 {
  margin-bottom: 0.35rem;
}

.resume-role {
  margin: 1.25rem 0 0;
}

.resume-role__meta {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 0.65rem;
}

.resume-role ul {
  margin: 0;
  padding-left: 1.15rem;
}

.resume-role li {
  margin-bottom: 0.55rem;
  max-width: 68ch;
}

.book-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.book-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}

.book-title {
  font-weight: 600;
}

.book-author,
.book-pages {
  color: var(--muted);
  font-size: 0.9rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 2rem 0 0.5rem;
}

.progress {
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.progress-bar {
  height: 4px;
  background: rgba(20, 34, 28, 0.08);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.75rem;
  margin-top: 2rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer a {
  color: var(--ink-soft);
  text-decoration: none;
  margin-right: 1rem;
}

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

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes floaty {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-10px);
  }
}

@media (max-width: 820px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    display: none;
    position: absolute;
    right: 1.25rem;
    top: calc(100% + 0.4rem);
    flex-direction: column;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 0.85rem 1rem;
    min-width: 180px;
    box-shadow: 0 16px 40px rgba(20, 34, 28, 0.1);
  }

  .nav.is-open {
    display: flex;
  }

  .hero__grid {
    width: min(70vw, 280px);
    inset: 6% 4% auto auto;
    opacity: 0.85;
  }

  .hero__inner {
    padding-top: 6.5rem;
  }

  .metrics {
    grid-template-columns: 1fr;
  }
}

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