/* ============================================================
   Julian Simon — personal website
   Light mode only. Editorial serif identity.
   ============================================================ */

:root {
  /* Palette */
  --bg: #f2eee3; /* warm parchment */
  --bg-panel: #ece6d7; /* slightly deeper neutral */
  --ink: #23221c; /* dark charcoal */
  --ink-soft: #55524a; /* muted text */
  --ink-faint: #8b8579; /* labels / meta */
  --green: #1f3b2c; /* deep forest accent */
  --green-soft: #6c8472; /* pale muted green, used sparingly */
  --line: rgba(35, 34, 28, 0.16);
  --line-soft: rgba(35, 34, 28, 0.09);

  /* Type */
  --serif: "Literata", Georgia, "Times New Roman", serif;
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Layout */
  --measure: 62ch;
  --gap: clamp(1.5rem, 4vw, 4rem);
  --pad-x: clamp(1.25rem, 5vw, 5rem);
  --section-y: clamp(4.5rem, 11vw, 10rem);
}

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

html {
  background-color: var(--bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* subtle paper grain */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.028'/%3E%3C/svg%3E");
}

::selection {
  background: var(--green);
  color: var(--bg);
}

/* ---------- Layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

main > section {
  border-top: 1px solid var(--line-soft);
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 0.75rem 1rem;
  z-index: 100;
  text-decoration: none;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 1px;
}

/* ============================================================
   Header / navigation
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(120%) blur(8px);
  border-bottom: 1px solid var(--line-soft);
}

.header-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1rem;
}

.wordmark {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: baseline;
  gap: clamp(0.9rem, 2.4vw, 2.25rem);
}

.language-switch {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  margin-left: clamp(0.25rem, 1vw, 0.75rem);
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--line);
}

.language-switch a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
}

.site-nav a {
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
  white-space: nowrap;
}

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    padding-block: 0.85rem;
  }
  .site-nav {
    width: 100%;
    flex-wrap: wrap;
    gap: 0.65rem 1.1rem;
  }
  .site-nav a {
    font-size: 0.7rem;
    letter-spacing: 0.04em;
  }
  .language-switch {
    flex-basis: 100%;
    margin-left: 0;
    padding-top: 0.15rem;
    font-size: 0.68rem;
  }
}

.site-nav a span {
  position: relative;
}
.site-nav a span::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.34s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.site-nav a:hover span::after,
.site-nav a:focus-visible span::after {
  transform: scaleX(1);
}
.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--green);
}

/* ============================================================
   Section heads (shared)
   ============================================================ */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: clamp(2.25rem, 5vw, 4rem);
}

.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 1.2rem + 3.4vw, 3.75rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}

.section-mark {
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green-soft);
  white-space: nowrap;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  border-top: none !important;
  padding-top: clamp(3.5rem, 9vw, 7rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
  min-height: min(92vh, 900px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-name {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin: 0 0 clamp(1.5rem, 4vw, 2.75rem);
}

.hero-statement {
  font-family: var(--serif);
  font-weight: 400;
  font-optical-sizing: auto;
  font-size: clamp(2.6rem, 1rem + 8.4vw, 8.5rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 0;
  max-width: 15ch;
  text-wrap: balance;
}

.hero-statement span {
  display: block;
}

.hero-lede {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.15rem, 1rem + 0.7vw, 1.6rem);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 44ch;
  margin: clamp(2.25rem, 5vw, 3.5rem) 0 0;
  margin-left: auto; /* offset to the right for editorial asymmetry */
}

.hero-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: clamp(2.5rem, 7vw, 5rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.hero-scroll {
  position: relative;
  padding-left: 1.5rem;
}
.hero-scroll::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1rem;
  height: 1px;
  background: var(--green);
  animation: scrollHint 2.4s ease-in-out infinite;
}
@keyframes scrollHint {
  0%,
  100% {
    transform: scaleX(0.4);
    transform-origin: left;
    opacity: 0.5;
  }
  50% {
    transform: scaleX(1);
    transform-origin: left;
    opacity: 1;
  }
}

/* ============================================================
   How I work
   ============================================================ */
.work {
  padding-block: var(--section-y);
}

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

.step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.5rem 2.5rem;
  padding-block: clamp(2rem, 5vw, 3.75rem);
  border-top: 1px solid var(--line);
}
.step:last-child {
  border-bottom: 1px solid var(--line);
}

.step-index {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.5rem, 1rem + 1.4vw, 2.4rem);
  color: var(--green-soft);
  line-height: 1;
}

.step-phrase {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 1.2rem + 3vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem;
}

.step-prose {
  max-width: 60ch;
}
.step-prose p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}
.step-prose p:last-child {
  margin-bottom: 0;
}

@media (min-width: 820px) {
  .step {
    grid-template-columns: 4rem minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .step-index {
    padding-top: 0.5rem;
  }
  .step-phrase {
    margin: 0;
  }
  .step-body {
    display: contents;
  }
}

/* ============================================================
   About
   ============================================================ */
.about {
  padding-block: var(--section-y);
  background: var(--bg-panel);
}

.about-grid {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.about-media {
  order: -1;
}

.portrait {
  margin: 0;
}

.portrait-frame,
.portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 20%;
  display: block;
  border: 1px solid var(--line);
}

.portrait-frame {
  position: relative;
  background:
    linear-gradient(135deg, rgba(31, 59, 44, 0.12), rgba(31, 59, 44, 0)),
    var(--bg);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.portrait-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0,
    transparent 13px,
    rgba(31, 59, 44, 0.06) 13px,
    rgba(31, 59, 44, 0.06) 14px
  );
}
.portrait-note {
  position: relative;
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.72rem;
  color: var(--green-soft);
}

.portrait figcaption {
  margin-top: 0.9rem;
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.about-text .prose {
  max-width: var(--measure);
}
.prose p {
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
}
.prose p.lead {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 1.1rem + 0.9vw, 1.85rem);
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 1.75rem;
}
.prose p:last-child {
  margin-bottom: 0;
}

@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: minmax(280px, 5fr) minmax(0, 7fr);
  }
  .about-media {
    order: 0;
    position: sticky;
    top: 6rem;
  }
}

/* ============================================================
   Where I'm usually most useful
   ============================================================ */
.useful {
  padding-block: var(--section-y);
}

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

.entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem 3rem;
  padding-block: clamp(1.75rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
}

.entry-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0;
  text-wrap: balance;
}

.entry-prose {
  max-width: 58ch;
}
.entry-prose p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}
.entry-prose p:last-child {
  margin-bottom: 0;
}

@media (min-width: 820px) {
  .entry {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: baseline;
  }
  .entry-title {
    position: sticky;
    top: 6rem;
  }
}

/* First entry gets slightly more presence (editorial variation) */
.entry:first-child .entry-prose p:first-child {
  font-size: 1.08em;
}

/* ============================================================
   Contact
   ============================================================ */
.contact {
  padding-block: var(--section-y);
  background: var(--green);
  color: var(--bg);
}
.contact .section-mark {
  color: color-mix(in srgb, var(--bg) 55%, transparent);
}
.contact .section-head {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.contact-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.75rem, 1.4rem + 6vw, 6.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
}

.contact-lede {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1rem + 0.8vw, 1.7rem);
  line-height: 1.5;
  max-width: 40ch;
  color: color-mix(in srgb, var(--bg) 88%, var(--green));
  margin: 0 0 clamp(2.5rem, 6vw, 4rem);
}

.contact-links {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid color-mix(in srgb, var(--bg) 28%, transparent);
  max-width: 640px;
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: clamp(1.1rem, 3vw, 1.75rem);
  border-bottom: 1px solid color-mix(in srgb, var(--bg) 28%, transparent);
  text-decoration: none;
  color: var(--bg);
}

.contact-link-label {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.5rem);
  letter-spacing: -0.01em;
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.contact-link-arrow {
  font-size: 1.5rem;
  color: var(--green-soft);
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.contact-link:hover .contact-link-label,
.contact-link:focus-visible .contact-link-label {
  transform: translateX(0.75rem);
}
.contact-link:hover .contact-link-arrow,
.contact-link:focus-visible .contact-link-arrow {
  transform: translateX(0.5rem);
  color: var(--bg);
}
.contact-link:focus-visible {
  outline-color: var(--bg);
  outline-offset: -4px;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  padding-block: 2rem;
  border-top: 1px solid var(--line-soft);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.to-top {
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
}
.to-top::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.34s ease;
}
.to-top:hover::after,
.to-top:focus-visible::after {
  transform: scaleX(1);
}

/* ============================================================
   Reveal animation
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.8s cubic-bezier(0.2, 0.7, 0.2, 1),
    transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1);
  transition-delay: calc(var(--i, 0) * 90ms);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-scroll::before {
    animation: none;
  }
  * {
    scroll-behavior: auto !important;
  }
}