/* ==========================================================================
   Wade Gausden — site styles
   Layered on top of Bootstrap: Bootstrap handles the grid, this handles
   everything that makes it look like something.
   ========================================================================== */

/* --- Palette: warm paper + ink + one terracotta accent ------------------- */
:root {
  --bg:          #faf7f2;
  --bg-deep:     #f2ece1;
  --surface:     #fffefb;
  --ink:         #17150f;
  --ink-soft:    #4a453b;
  --muted:       #7a7367;
  --line:        #e4ddd0;
  --line-firm:   #d3c9b7;
  --accent:      #bf4d24;
  --accent-soft: rgba(191, 77, 36, 0.09);
  --on-accent:   #fffefb;
  --shadow:      rgba(38, 30, 18, 0.07);
  --shadow-lift: rgba(38, 30, 18, 0.13);

  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --prose: "Newsreader", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:          #100f0d;
    --bg-deep:     #191712;
    --surface:     #1a1815;
    --ink:         #f6f2e9;
    --ink-soft:    #d1cabc;
    --muted:       #918977;
    --line:        #2a2722;
    --line-firm:   #3d3831;
    --accent:      #ea7b4d;
    --accent-soft: rgba(234, 123, 77, 0.13);
    --on-accent:   #14120f;
    --shadow:      rgba(0, 0, 0, 0.4);
    --shadow-lift: rgba(0, 0, 0, 0.55);
  }
}

/* --- Base ---------------------------------------------------------------- */
* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  /* soft warm glow up top, so the page isn't a flat slab */
  background-image:
    radial-gradient(70rem 40rem at 50% -18rem, var(--bg-deep) 0%, transparent 70%);
  background-repeat: no-repeat;
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Fine film-grain overlay — barely visible, kills the flat-CSS feel */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

body > * { position: relative; z-index: 1; }

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

::selection {
  background: var(--accent);
  color: var(--on-accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --- Small tracked-out label (eyebrows, meta) ---------------------------- */
.label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

/* --- Width limits (used with Bootstrap's .container) --------------------- */
.wrap       { max-width: 940px; }
.wrap-tight { max-width: 780px; }

/* --- Header -------------------------------------------------------------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 2.25rem 1rem;
}

.site-name {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  transition: color 0.2s ease;
}

/* little terracotta dot as a mark */
.site-name::before {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
}

.site-name:hover { color: var(--accent); }

/* --- Homepage hero ------------------------------------------------------- */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100vh;
  min-height: 100svh;
  padding-block: 3rem;
}

.hero-name {
  margin: 0.75rem 0 0;
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 20, "WONK" 1;
  font-weight: 600;
  font-size: clamp(2.9rem, 9vw, 5.25rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.hero-tagline {
  max-width: 34rem;
  margin: 1.4rem 0 0;
  font-size: clamp(1rem, 2.4vw, 1.15rem);
  line-height: 1.65;
  color: var(--ink-soft);
}

/* thin rule that fades out — nicer than a flat <hr> */
.rule {
  height: 1px;
  border: 0;
  margin: 2.75rem 0;
  opacity: 1;
  background: linear-gradient(to right, var(--line-firm), var(--line) 45%, transparent);
}

/* --- Tiles (homepage) ---------------------------------------------------- */
.tile {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2.5rem;
  height: 100%;
  min-height: 15.5rem;
  padding: 1.75rem;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 1px 2px var(--shadow);
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1),
              box-shadow 0.28s ease,
              border-color 0.28s ease;
}

/* accent wash that blooms in on hover */
.tile::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(22rem 14rem at 85% 110%, var(--accent-soft), transparent 70%);
  transition: opacity 0.35s ease;
}

.tile:hover,
.tile:focus-visible {
  transform: translateY(-4px);
  border-color: var(--line-firm);
  box-shadow: 0 14px 34px -8px var(--shadow-lift);
}

.tile:hover::after,
.tile:focus-visible::after { opacity: 1; }

.tile-title {
  margin: 0;
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 18;
  font-weight: 600;
  font-size: clamp(1.9rem, 4.6vw, 2.4rem);
  line-height: 1.05;
  letter-spacing: -0.028em;
  transition: color 0.2s ease;
}

.tile:hover .tile-title { color: var(--accent); }

.tile-desc {
  margin: 0.55rem 0 0;
  font-size: 0.94rem;
  color: var(--muted);
}

.tile-foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

/* circular arrow button in the tile corner */
.tile-arrow {
  flex: none;
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1rem;
  line-height: 1;
  color: var(--ink-soft);
  border: 1px solid var(--line-firm);
  border-radius: 50%;
  transition: background-color 0.25s ease, color 0.25s ease,
              border-color 0.25s ease,
              transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.tile:hover .tile-arrow {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

.tile-resume:hover .tile-arrow    { transform: translateY(3px); }
.tile-portfolio:hover .tile-arrow { transform: translate(3px, -3px); }

/* --- Page heads (portfolio / post) --------------------------------------- */
.page-title {
  margin: 0.6rem 0 0;
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 20, "WONK" 1;
  font-weight: 600;
  font-size: clamp(2.3rem, 7vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.page-intro {
  max-width: 32rem;
  margin: 1rem 0 0;
  color: var(--muted);
}

/* --- Post list ----------------------------------------------------------- */
.post-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  height: 100%;
  min-height: 11rem;
  padding: 1.5rem;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 1px 2px var(--shadow);
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1),
              box-shadow 0.28s ease,
              border-color 0.28s ease;
}

/* accent bar that wipes across the top edge on hover */
.post-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.post-card:hover,
.post-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--line-firm);
  box-shadow: 0 12px 28px -8px var(--shadow-lift);
}

.post-card:hover::before,
.post-card:focus-visible::before { transform: scaleX(1); }

.post-num {
  font-family: var(--prose);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--muted);
}

.post-card-title {
  margin: 0;
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-weight: 600;
  font-size: 1.4rem;
  line-height: 1.2;
  letter-spacing: -0.022em;
  transition: color 0.2s ease;
}

.post-card:hover .post-card-title { color: var(--accent); }

.post-card-foot {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: auto;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s ease, gap 0.25s ease;
}

.post-card:hover .post-card-foot {
  gap: 0.75rem;
  color: var(--accent);
}

/* --- Post body ----------------------------------------------------------- */
.post { max-width: 40rem; }

.post-title {
  margin: 0.6rem 0 0;
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 20, "WONK" 1;
  font-weight: 600;
  font-size: clamp(2.1rem, 6.5vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.post-body {
  margin-top: 2.25rem;
  font-family: var(--prose);
  font-size: 1.2rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

.post-body > p { margin: 0 0 1.4em; }

/* first paragraph reads a touch larger, like a lede — same colour as the rest */
.post-body > p:first-of-type {
  font-size: 1.3rem;
  line-height: 1.6;
}

.post-body h2 {
  margin: 2.5rem 0 0.9rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.post-body a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.post-body a:hover { text-decoration-thickness: 2px; }

.post-body blockquote {
  margin: 2rem 0;
  padding-left: 1.25rem;
  border-left: 2px solid var(--accent);
  font-style: italic;
  color: var(--ink);
}

.post-body code {
  padding: 0.15em 0.4em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86em;
  color: var(--ink);
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 5px;
}

/* --- Diagrams (mermaid) -------------------------------------------------- */
.figure {
  margin: 2.5rem 0;
}

.diagram {
  padding: 1.5rem 1rem;
  overflow-x: auto;           /* wide diagrams scroll rather than squash */
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.diagram .mermaid {
  display: flex;
  justify-content: center;
  min-width: min-content;
}

.diagram svg {
  max-width: 100%;
  height: auto;
}

.figure-caption {
  margin: 0.85rem 0 0;
  font-family: var(--sans);
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--muted);
  text-align: center;
}

.figure-caption strong {
  font-weight: 600;
  color: var(--ink-soft);
}

/* --- Bottom nav / footer ------------------------------------------------- */
.post-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.nav-link-quiet {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  color: var(--muted);
  transition: color 0.2s ease, gap 0.25s ease;
}

.nav-link-quiet:hover {
  gap: 0.75rem;
  color: var(--accent);
}

.site-footer {
  padding-block: 3rem 2.5rem;
  font-size: 0.82rem;
  color: var(--muted);
}

/* --- Entrance animation (staggered, and respectful of settings) ---------- */
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

.rise { animation: rise 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) both; }

.rise-1 { animation-delay: 0.04s; }
.rise-2 { animation-delay: 0.12s; }
.rise-3 { animation-delay: 0.2s; }
.rise-4 { animation-delay: 0.28s; }

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.01ms !important;
  }

  .tile:hover,
  .post-card:hover { transform: none; }
}