/* ==========================================================================
   alir.me · quiet editorial with a dark cover
   Fraunces (display) + Inter (text) · ink + deep teal · no JavaScript
   ========================================================================== */

:root {
  --ink-deep: #0b151b;        /* cover background */
  --ink-deep-2: #0e1d24;
  --paper: #faf8f4;           /* reading background */
  --paper-edge: #f0ede6;
  --text-dark: #25333d;       /* text on paper */
  --text-light: #d8e2e4;      /* text on ink */
  --muted-dark: #66747e;
  --muted-light: #7d949b;
  --teal: #2a5d63;
  --teal-bright: #6fb5bd;     /* accent on dark */
  --rule-dark: #dcd8cf;
  --rule-light: #1d3138;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 1.0rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--teal); color: #fff; }

/* ==========================================================================
   COVER (home)
   ========================================================================== */

body.home {
  background:
    radial-gradient(1100px 700px at 78% -10%, rgba(58, 124, 132, 0.22), transparent 60%),
    radial-gradient(800px 600px at -10% 110%, rgba(42, 93, 99, 0.14), transparent 55%),
    linear-gradient(175deg, var(--ink-deep) 0%, var(--ink-deep-2) 100%);
  background-attachment: fixed;
  color: var(--text-light);
  min-height: 100vh;
  position: relative;
}

/* film grain */
body.home::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.site-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  max-width: 68rem;
  margin: 0 auto;
  padding: 2.2rem 1.5rem 0;
  position: relative;
  z-index: 2;
}
.brand {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
}
.site-head nav a {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  margin-left: 1.6rem;
  padding-bottom: 0.2rem;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.site-head nav a:hover,
.site-head nav a[aria-current="page"] { background-size: 100% 1px; }

.site-head nav a.cta {
  background-image: none;
  border: 1px solid var(--teal);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  color: var(--teal);
  transition: background-color 0.25s ease, color 0.25s ease;
}
.site-head nav a.cta:hover {
  background-color: var(--teal);
  color: var(--bg-light, #fff);
}

body.home .brand { color: var(--text-light); }
body.home .site-head nav a { color: var(--muted-light); }
body.home .site-head nav a:hover { color: var(--text-light); }
body.home .site-head nav a.cta { color: var(--teal-bright); border-color: var(--teal-bright); }
body.home .site-head nav a.cta:hover { background-color: var(--teal-bright); color: var(--ink, #15282b); }
body.page .brand { color: var(--text-dark); }
body.page .site-head nav a { color: var(--muted-dark); }
body.page .site-head nav a:hover,
body.page .site-head nav a[aria-current="page"] { color: var(--teal); }
body.page .site-head nav a.cta { color: var(--teal); }

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  max-width: 68rem;
  margin: 0 auto;
  padding: clamp(5rem, 14vh, 9rem) 1.5rem 4rem;
  position: relative;
  z-index: 1;
}
.kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal-bright);
  margin-bottom: 1.6rem;
}
.hero h1 {
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-size: clamp(2.6rem, 6.4vw, 5.2rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: #f2f5f4;
  max-width: 18ch;
}
.hero h1 em {
  font-style: italic;
  font-weight: 450;
  color: var(--teal-bright);
}
.lede {
  margin-top: 2.2rem;
  max-width: 44rem;
  font-size: 1.08rem;
  color: var(--muted-light);
}
.hero-links { margin-top: 2.6rem; }

.arrow-link {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--teal-bright);
  margin-right: 2.2rem;
}
.arrow-link::after {
  content: "\2192";
  display: inline-block;
  margin-left: 0.5em;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.arrow-link:hover::after { transform: translateX(0.4em); }
body.page .arrow-link { color: var(--teal); }

/* staggered reveal on load */
.reveal { opacity: 0; transform: translateY(22px); animation: rise 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards; }
.r1 { animation-delay: 0.05s; }
.r2 { animation-delay: 0.18s; }
.r3 { animation-delay: 0.34s; }
.r4 { animation-delay: 0.5s; }
@keyframes rise { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; opacity: 1; transform: none; }
}

/* ==========================================================================
   HOME SECTIONS
   ========================================================================== */

.home-sec {
  max-width: 68rem;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
  border-top: 1px solid var(--rule-light);
  display: grid;
  grid-template-columns: 16rem 1fr;
  gap: 2rem;
  position: relative;
  z-index: 1;
}
.sec-head { position: relative; }
.sec-head h2 {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-light);
  position: relative;
  z-index: 1;
  padding-top: 1.2rem;
}
.ghost {
  font-family: var(--serif);
  font-size: 6.5rem;
  font-weight: 500;
  font-style: italic;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(111, 181, 189, 0.28);
  position: absolute;
  top: -1.2rem;
  left: -0.4rem;
  user-select: none;
}

.index-row {
  display: flex;
  align-items: baseline;
  gap: 1.4rem;
  padding: 1.05rem 0;
  text-decoration: none;
  border-bottom: 1px solid var(--rule-light);
  transition: padding-left 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.index-row:hover { padding-left: 0.6rem; }
.row-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--teal-bright);
  min-width: 2rem;
}
.row-title {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-light);
  line-height: 1.3;
}
.row-sub {
  display: block;
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 400;
  color: var(--muted-light);
  margin-top: 0.2rem;
}
.row-meta {
  margin-left: auto;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-light);
  white-space: nowrap;
}
.index-row:hover .row-title { color: var(--teal-bright); }
.more { margin-top: 1.4rem; }
.about-teaser {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-light);
  max-width: 36rem;
  margin-bottom: 1.4rem;
}

/* ==========================================================================
   READING PAGES (paper)
   ========================================================================== */

body.page {
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--paper-edge) 100%);
  color: var(--text-dark);
  min-height: 100vh;
}

.page-wrap {
  max-width: 42rem;
  margin: 0 auto;
  padding: clamp(3rem, 9vh, 5.5rem) 1.5rem 4rem;
}
.page-head { margin-bottom: 2.6rem; }
.kicker-dark {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
}
.page-head h1 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: #1c2a33;
}
.page-desc {
  margin-top: 1.1rem;
  font-size: 1.12rem;
  color: var(--muted-dark);
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
}

.prose p { margin-bottom: 1.35rem; font-size: 1.04rem; }
.prose a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose h2 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 500;
  margin: 2.4rem 0 1rem;
  color: #1c2a33;
}
.prose ul, .prose ol { margin: 0 0 1.35rem 1.3rem; }
.prose li { margin-bottom: 0.4rem; }
.prose > p:first-of-type::first-letter {
  font-family: var(--serif);
  font-size: 3.4em;
  font-weight: 500;
  float: left;
  line-height: 0.82;
  padding-right: 0.12em;
  color: var(--teal);
}

/* inline diagrams (the {{< diagram >}} shortcode) */
.diagram { margin: 2.4rem 0; }
.diagram-frame {
  background: #fff;
  border: 1px solid var(--rule-dark);
  border-radius: 3px;
  padding: 1.6rem 1.4rem;
  overflow-x: auto;
}
.diagram-frame svg { display: block; max-width: 100%; height: auto; margin: 0 auto; }
.diagram figcaption {
  margin-top: 0.7rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.01em;
  color: var(--muted-dark);
  text-align: center;
}
/* shared diagram primitives, used by inline SVG/HTML in essays */
.diagram .d-label { font-family: var(--sans); font-size: 12px; fill: var(--text-dark); }
.diagram .d-mono { font-family: "SFMono-Regular", "Consolas", monospace; font-size: 11px; fill: var(--muted-dark); }
.diagram .d-box { fill: var(--paper); stroke: var(--text-dark); stroke-width: 1.2; }
.diagram .d-box-accent { fill: #eef4f4; stroke: var(--teal); stroke-width: 1.4; }
.diagram .d-rule { stroke: var(--rule-dark); stroke-width: 1; }
.diagram .d-flow { stroke: var(--teal); stroke-width: 1.4; fill: none; }
.diagram .d-flow-faint { stroke: var(--muted-dark); stroke-width: 1; fill: none; stroke-dasharray: 4 3; }
.diagram .d-fill-accent { fill: var(--teal); }
.diagram .d-fill-muted { fill: var(--muted-dark); }

/* index list on section pages */
.index-list { border-top: 1px solid var(--rule-dark); }
body.page .index-row { border-color: var(--rule-dark); }
body.page .row-title { color: #1c2a33; }
body.page .row-sub, body.page .row-meta { color: var(--muted-dark); }
body.page .row-num { color: var(--teal); }
body.page .index-row:hover .row-title { color: var(--teal); }
.empty { color: var(--muted-dark); }
.empty a { color: var(--teal); }

/* ==========================================================================
   RESUME PAGE
   ========================================================================== */

.resume .rsec {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  border-bottom: 1px solid var(--rule-dark);
  padding-bottom: 0.4rem;
  margin: 2.8rem 0 1.4rem;
}
.r-role { margin-bottom: 1.8rem; }
.r-head { display: flex; justify-content: space-between; align-items: baseline; }
.r-head h3 { font-size: 1.02rem; font-weight: 700; color: #1c2a33; }
.r-co { color: var(--teal); }
.r-dates { font-size: 0.85rem; color: var(--muted-dark); white-space: nowrap; padding-left: 1rem; }
.r-sub { font-size: 0.88rem; color: var(--muted-dark); margin-bottom: 0.5rem; }
.r-role ul { margin-left: 1.2rem; }
.r-role li { margin-bottom: 0.4rem; font-size: 0.97rem; }
.r-role li::marker { color: var(--teal); }
.r-skill { margin-bottom: 0.6rem; font-size: 0.97rem; }
.r-skill strong { color: #1c2a33; }
.r-title-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.r-title-row .r-pdf { margin-right: 0; white-space: nowrap; }

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-foot {
  max-width: 68rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 2.6rem;
  position: relative;
  z-index: 1;
}
body.home .site-foot { border-top: 1px solid var(--rule-light); }
body.page .site-foot { border-top: 1px solid var(--rule-dark); max-width: 42rem; }
.foot-links a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  margin-right: 1.8rem;
}
body.home .foot-links a { color: var(--teal-bright); }
body.page .foot-links a { color: var(--teal); }
.colophon { margin-top: 1.2rem; font-size: 0.8rem; }
body.home .colophon { color: var(--muted-light); }
body.page .colophon { color: var(--muted-dark); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 720px) {
  .home-sec { grid-template-columns: 1fr; gap: 0.6rem; padding: 2.6rem 1.5rem; }
  .ghost { position: static; display: block; font-size: 4.5rem; margin-bottom: -2.4rem; }
  .sec-head h2 { padding-top: 0; }
  .row-meta { display: none; }
  .site-head { flex-direction: column; gap: 0.8rem; }
  .site-head nav a { margin-left: 0; margin-right: 1.4rem; }
  .r-head { flex-direction: column; }
  .r-dates { padding-left: 0; }
}