/* ===========================================================
   Priyanshu Sahani — Portfolio
   Editorial design system
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400;1,9..144,500&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --paper: #FAF8F5;
  --paper-dim: #F3F0EA;
  --ink: #1A1A1A;
  --ink-soft: #3A3A36;
  --pine: #2B4C3F;
  --pine-deep: #1E3B30;
  --brass: #C9A66B;
  --rule: #E1DCD1;
  --meta: #6B6B63;

  --display: 'Fraunces', serif;
  --body: 'Inter', sans-serif;
  --mono: 'JetBrains Mono', monospace;

  --max: 1180px;
  --gutter: clamp(24px, 5vw, 64px);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity .7s ease, transform .7s ease;
  }
  .reveal.in {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Header / masthead nav ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--rule);
}

.masthead-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}

.brand .dot { color: var(--brass); }

.nav-links {
  display: flex;
  gap: clamp(18px, 3vw, 36px);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links a {
  position: relative;
  color: var(--ink-soft);
  padding-bottom: 4px;
}

.nav-links a.active {
  color: var(--pine);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: var(--pine);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    inset: 64px 0 0 0;
    background: var(--paper);
    flex-direction: column;
    padding: 32px var(--gutter);
    gap: 22px;
    font-size: 0.95rem;
    transform: translateY(-110%);
    transition: transform .3s ease;
    border-bottom: 1px solid var(--rule);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: block; }
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pine);
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--brass);
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(64px, 12vh, 130px) 0 clamp(48px, 8vh, 90px);
  border-bottom: 1px solid var(--rule);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.hero-kicker {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--meta);
  margin-bottom: 18px;
}

.hero h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  margin: 0 0 22px;
  max-width: 16ch;
}

.hero h1 em {
  font-style: italic;
  font-weight: 400;
  color: var(--pine);
}

.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 36px;
}

.hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--meta);
  border-top: 1px solid var(--rule);
  padding-top: 22px;
}

.hero-meta-row span { white-space: nowrap; }
.hero-meta-row b { color: var(--ink); font-weight: 500; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

.btn {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  padding: 13px 24px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.btn-primary {
  background: var(--pine);
  border-color: var(--pine);
  color: var(--paper);
}
.btn-primary:hover { background: var(--pine-deep); border-color: var(--pine-deep); }

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

/* ---------- Section shells ---------- */
.section {
  padding: clamp(56px, 9vh, 100px) 0;
  border-bottom: 1px solid var(--rule);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: clamp(32px, 5vh, 56px);
  flex-wrap: wrap;
}

.section-head h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  margin: 10px 0 0;
}

.section-head p {
  max-width: 42ch;
  color: var(--meta);
  font-size: 0.95rem;
  margin: 10px 0 0;
}

/* ---------- Editorial two-column (margin-annotation) layout ---------- */
.editorial-row {
  display: grid;
  grid-template-columns: 150px 1px 1fr;
  gap: 0 32px;
  align-items: start;
}

@media (max-width: 820px) {
  .editorial-row {
    grid-template-columns: 1fr;
  }
  .editorial-rule { display: none; }
}

.editorial-rule {
  width: 1px;
  background: var(--rule);
  height: 100%;
  align-self: stretch;
}

.margin-col {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--meta);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.margin-col .feature-no {
  font-family: var(--display);
  font-size: 2.4rem;
  color: var(--rule);
  font-weight: 600;
  line-height: 1;
  margin-bottom: 4px;
}

.margin-col .stack-tag {
  background: var(--paper-dim);
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  padding: 5px 9px;
  border-radius: 2px;
  width: fit-content;
}

/* ---------- Project case file ---------- */
.case {
  padding: clamp(36px, 5vh, 56px) 0;
}

.case + .case {
  border-top: 1px solid var(--rule);
}

.case-title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  margin: 0 0 6px;
  letter-spacing: -0.005em;
}

.case-role {
  color: var(--pine);
  font-family: var(--mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 18px;
  display: block;
}

.case-desc {
  color: var(--ink-soft);
  max-width: 62ch;
  margin: 0 0 22px;
}

.case ul {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 64ch;
}

.case li {
  position: relative;
  padding-left: 22px;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.case li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--brass);
}

.case-links {
  display: flex;
  gap: 18px;
  font-family: var(--mono);
  font-size: 0.8rem;
}

.case-links a {
  color: var(--pine);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.case-links a:hover { border-bottom-color: var(--pine); }

/* ---------- Skills ---------- */
.skill-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 36px;
}

.skill-group-label {
  font-family: var(--mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brass);
  margin-bottom: 14px;
  display: block;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pill {
  font-family: var(--mono);
  font-size: 0.82rem;
  border: 1px solid var(--rule);
  padding: 7px 13px;
  border-radius: 2px;
  color: var(--ink-soft);
}

/* ---------- About page specific ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}

@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
}

.lede {
  font-family: var(--display);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(1.35rem, 2.4vw, 1.8rem);
  line-height: 1.4;
  color: var(--pine-deep);
  margin: 0 0 28px;
}

.pull-quote {
  border-left: 2px solid var(--brass);
  padding-left: 24px;
  font-family: var(--display);
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  font-style: italic;
  color: var(--ink-soft);
  margin: 36px 0;
}

.fact-card {
  background: var(--paper-dim);
  border: 1px solid var(--rule);
  padding: 28px;
}

.fact-card + .fact-card { margin-top: 20px; }

.fact-card h3 {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--meta);
  margin: 0 0 14px;
}

.fact-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--rule);
  font-size: 0.92rem;
}
.fact-row:first-of-type { border-top: none; padding-top: 0; }

.fact-row .v { color: var(--meta); text-align: right; }

.timeline-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--rule);
}
.timeline-item:first-child { border-top: none; }

.timeline-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--meta);
}

.timeline-body h4 {
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.98rem;
  margin: 0 0 4px;
}
.timeline-body p {
  margin: 0;
  color: var(--meta);
  font-size: 0.88rem;
}

/* ---------- Achievements strip ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 28px;
  border-top: 1px solid var(--rule);
  padding-top: 32px;
  margin-top: 32px;
}

.stat-num {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  color: var(--pine);
  line-height: 1;
}

.stat-label {
  font-family: var(--mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--meta);
  margin-top: 6px;
}

/* ---------- Footer ---------- */
footer {
  padding: 40px 0 56px;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-family: var(--mono);
  font-size: 0.8rem;
}

.footer-links a:hover { color: var(--pine); }

.footer-note {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--meta);
}

/* ---------- Contact CTA (home end) ---------- */
.cta-block {
  text-align: left;
}

.cta-block h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2rem, 5vw, 3.4rem);
  max-width: 18ch;
  margin: 0 0 28px;
}

.cta-block h2 em {
  font-style: italic;
  color: var(--pine);
  font-weight: 400;
}

/* ---------- Focus visibility ---------- */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--pine);
  outline-offset: 3px;
}