/* ---------------------------------------------------
   Muhammad Sohail — personal site
   Editorial / consulting-style light theme.
--------------------------------------------------- */

:root {
  --paper: #fbf9f4;
  --paper-raised: #f3efe4;
  --ink: #1f1b16;
  --ink-soft: #55504a;
  --ink-faint: #8a8478;
  --rule: #e4ddcc;
  --accent: #b5502f;   /* warm terracotta, descendant of the original teal accent */
  --accent-soft: #eadfd3;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --max: 880px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 16px; top: 16px; }

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 249, 244, 0.9);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--rule);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-family: var(--mono);
  font-weight: 500;
  text-decoration: none;
  font-size: 15px;
  border: 1px solid var(--ink);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.nav { display: flex; gap: 28px; }
.nav a {
  text-decoration: none;
  font-size: 14.5px;
  color: var(--ink-soft);
}
.nav a:hover { color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--rule);
  padding: 8px 24px 16px;
}
.mobile-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
}
.mobile-nav.open { display: flex; }

@media (max-width: 700px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------- hero ---------- */

.hero { padding: 88px 0 72px; }

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--accent);
  margin: 0 0 14px;
}

.hero h1 {
  font-size: clamp(38px, 5.5vw, 56px);
  margin-bottom: 10px;
}

.hero-role {
  font-size: 19px;
  color: var(--ink-soft);
  margin: 0 0 20px;
  max-width: 46ch;
}

.hero-lede {
  max-width: 56ch;
  color: var(--ink-soft);
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 3px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #9a4227; }
.btn-ghost { border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.social-row {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
}
.social-row a { text-decoration: none; color: var(--ink-faint); }
.social-row a:hover { color: var(--accent); }

.hero-portrait img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: 50% 22%;
  border-radius: 6px;
  border: 1px solid var(--rule);
}

@media (max-width: 700px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-portrait { width: 140px; order: -1; }
}

/* ---------- generic section ---------- */

.section { padding: 72px 0; border-top: 1px solid var(--rule); }

.section-heading {
  font-size: 28px;
  margin-bottom: 8px;
}

.section-sub {
  color: var(--ink-soft);
  margin: 0 0 40px;
  max-width: 60ch;
}

/* ---------- about ---------- */

.about-body p { max-width: 68ch; color: var(--ink-soft); }
.about-body p:first-child { color: var(--ink); font-size: 19px; font-family: var(--serif); }
.about-meta {
  font-size: 14px;
  color: var(--ink-faint);
  border-top: 1px solid var(--rule);
  padding-top: 20px;
  margin-top: 24px !important;
}

/* ---------- education ---------- */

.education { padding-top: 8px; }

.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.edu-grid .section-heading { font-size: 20px; }

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

.edu-list li {
  padding: 16px 0;
  border-top: 1px solid var(--rule);
}
.edu-list li:first-child { border-top: none; padding-top: 0; }

.edu-degree {
  font-weight: 600;
  margin: 0 0 4px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 15px;
}

.edu-status {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 12px;
  color: var(--ink-faint);
  white-space: nowrap;
}

.edu-school {
  color: var(--ink-soft);
  font-size: 14.5px;
  margin: 0;
}

@media (max-width: 700px) {
  .edu-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- work ---------- */

.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.work-card {
  background: var(--paper);
}

.work-card summary {
  padding: 30px;
  cursor: pointer;
  list-style: none;
}
.work-card summary::-webkit-details-marker { display: none; }
.work-card summary:hover { background: var(--paper-raised); }

.work-kicker {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 10px;
}

.work-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.work-summary {
  color: var(--ink-soft);
  font-size: 15px;
  margin: 0 0 16px;
}

.work-stack {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-faint);
  margin: 0 0 14px;
}

.work-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}
.work-toggle::after { content: "↓"; display: inline-block; transition: transform .15s ease; }
.work-card[open] .work-toggle::after { transform: rotate(180deg); }

.work-story {
  padding: 0 30px 28px;
  border-top: 1px solid var(--rule);
}
.work-story p {
  color: var(--ink-soft);
  font-size: 15px;
  margin: 20px 0 0;
}
.work-story p + p { margin-top: 14px; }

@media (max-width: 700px) {
  .work-grid { grid-template-columns: 1fr; }
}

/* ---------- more projects ---------- */

.more-projects { margin-top: 48px; }

.more-heading {
  font-size: 15px;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  margin: 0 0 4px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 16px;
}

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

.more-list li { border-bottom: 1px solid var(--rule); }

.more-list summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}
.more-list summary::-webkit-details-marker { display: none; }
.more-list summary:hover .more-title { color: var(--accent); }

.more-title { font-weight: 600; font-size: 15px; }

.more-stack {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  white-space: nowrap;
}

.more-list p {
  color: var(--ink-soft);
  font-size: 14.5px;
  margin: 0 0 20px;
  max-width: 68ch;
}

@media (max-width: 600px) {
  .more-list summary { flex-direction: column; gap: 4px; }
}

/* ---------- experience timeline ---------- */

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

.timeline li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-top: 1px solid var(--rule);
}
.timeline li:first-child { border-top: none; }

.timeline-when {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
  padding-top: 4px;
}

.timeline-body h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.timeline-body h3 span {
  display: block;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 14.5px;
  color: var(--accent);
  margin-top: 4px;
}
.timeline-body p {
  color: var(--ink-soft);
  font-size: 15px;
  margin: 0;
  max-width: 62ch;
}

@media (max-width: 700px) {
  .timeline li { grid-template-columns: 1fr; gap: 8px; }
}

/* ---------- writing ---------- */

.writing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.writing-card {
  display: block;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 26px;
  transition: border-color .15s ease;
}
.writing-card:hover { border-color: var(--accent); }

.writing-source {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 10px;
}

.writing-card h3 {
  font-size: 18px;
  margin-bottom: 14px;
}

.writing-link {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
}

@media (max-width: 700px) {
  .writing-grid { grid-template-columns: 1fr; }
}

/* ---------- book a call ---------- */

.book .calendly-inline-widget { border: 1px solid var(--rule); border-radius: 4px; overflow: hidden; }

/* ---------- contact ---------- */

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--mono);
  font-size: 16px;
  margin-top: 32px;
}
.contact-links a { text-decoration: none; }
.contact-links a:hover { color: var(--accent); }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 28px 0 60px;
  color: var(--ink-faint);
  font-size: 13px;
}