/* ============================================
   KarenFittsAI.com - Design Tokens & Base Styles
   ============================================ */

:root {
  /* Color - dark, precise, warm accent */
  --paper: #0B0D0F;
  --paper-raised: #15181C;
  --ink: #ECEDEE;
  --slate: #9BA1A6;
  --signal: #D9A857;
  --signal-dark: #E8C179;
  --line: rgba(255,255,255,0.12);
  --sand: #2A2119;

  /* Type */
  --font-display: "Manrope", -apple-system, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  /* Scale */
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --step-2: clamp(1.75rem, 1.5rem + 1.2vw, 2.25rem);
  --step-3: clamp(2.5rem, 1.9rem + 2.8vw, 4rem);

  --space-xs: 0.5rem;
  --space-s: 1rem;
  --space-m: 2rem;
  --space-l: 4rem;
  --space-xl: 7rem;

  --max-w: 1400px;
  --radius: 4px;

  /* Secondary accent for variety - cool teal against the warm gold */
  --accent2: #6FA8A0;
  --accent2-dim: rgba(111,168,160,0.12);
}

@media (prefers-color-scheme: dark) {
  /* Intentionally not switching - the palette is authored for light paper. */
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    radial-gradient(circle, rgba(217,168,87,0.10) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* subtle grain overlay for texture/depth */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Custom cursor - desktop pointer devices only */
@media (pointer: fine) {
  body.cursor-ready { cursor: none; }
  body.cursor-ready a, body.cursor-ready button { cursor: none; }
}
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  transform: translate(-100px, -100px);
  opacity: 0;
}
.cursor-dot {
  width: 7px; height: 7px;
  background: var(--signal);
  transition: opacity 0.2s ease;
}
.cursor-ring {
  width: 34px; height: 34px;
  border: 1px solid rgba(217,168,87,0.55);
  transition: width 0.18s ease, height 0.18s ease, border-color 0.18s ease, opacity 0.2s ease;
}
.cursor-dot.is-active, .cursor-ring.is-active { opacity: 1; }
.cursor-ring.is-hovering { width: 52px; height: 52px; border-color: var(--signal); }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-in { opacity: 1; transform: translateY(0); }

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

a {
  color: inherit;
  text-decoration-color: var(--signal);
  text-underline-offset: 3px;
}

::selection { background: var(--sand); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.wrap {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--space-m);
}

@media (max-width: 640px) {
  .wrap { padding-inline: var(--space-s); }
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--space-s);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--step-3); }
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-1); }

p { margin: 0 0 var(--space-s); }

.lede {
  font-size: var(--step-1);
  color: var(--slate);
  max-width: 46ch;
}

.label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal-dark);
  position: relative;
  padding-left: 1.1rem;
}
.label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0.7rem;
  height: 2px;
  background: var(--signal);
}
.label.no-accent { padding-left: 0; }
.label.no-accent::before { content: none; }

.rule {
  border: none;
  border-top: 1px solid var(--line);
  margin: var(--space-l) 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.3rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--ink);
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.btn-primary {
  background: var(--signal);
  color: var(--paper);
  border-color: var(--signal);
}
.btn-primary:hover {
  background: var(--signal-dark);
  border-color: var(--signal-dark);
  box-shadow: 0 0 28px rgba(217,168,87,0.35);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--signal); color: var(--signal-dark); transform: translateY(-1px); }

/* ---------- Header / Nav ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(11, 13, 15, 0.85);
  backdrop-filter: blur(6px);
  z-index: 20;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-s);
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  text-decoration: none;
}
.brand span { color: var(--signal); }

.nav-links {
  display: flex;
  gap: var(--space-m);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.92rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--slate);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--signal);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.4rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: var(--space-s) var(--space-m) var(--space-m);
    gap: var(--space-s);
  }
  .nav-links.open { display: flex; }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: var(--space-xl);
  padding-block: var(--space-m);
  color: var(--slate);
  font-size: 0.88rem;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-s);
}
.site-footer a { color: var(--slate); }
.site-footer a:hover { color: var(--ink); }

/* ---------- Sections ---------- */
section { padding-block: var(--space-l); }

/* ---------- Hero / signature diagram ---------- */
.hero {
  padding-top: var(--space-l);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-l);
  align-items: center;
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
}

.hero-copy .label { margin-bottom: var(--space-s); display: block; }

.hero-actions {
  display: flex;
  gap: var(--space-s);
  margin-top: var(--space-m);
  flex-wrap: wrap;
}

/* before/after signature diagram */
.transform-diagram {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: var(--space-m);
}
.transform-diagram .diagram-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-s);
}
.diagram-side .label { margin-bottom: 0.6rem; }

.scatter {
  position: relative;
  height: 150px;
}
.scatter .chip {
  position: absolute;
  background: var(--sand);
  border: 1px solid var(--line);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.3rem 0.5rem;
  color: var(--ink);
}

.grid-clean {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.4rem;
  height: 150px;
}
.grid-clean .cell {
  background: var(--paper);
  border: 1px solid var(--signal);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.4rem 0.5rem;
  color: var(--signal-dark);
  display: flex;
  align-items: center;
}

.diagram-arrow {
  font-family: var(--font-mono);
  color: var(--slate);
  font-size: 1.3rem;
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-m);
  margin-top: var(--space-m);
}

.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: var(--space-m);
  background: var(--paper-raised);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--signal);
}
.card:nth-child(even)::before { background: var(--accent2); }
.card:hover { border-color: var(--signal); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0,0,0,0.35); }
.card:nth-child(even):hover { border-color: var(--accent2); }
.card .label { margin-bottom: 0.5rem; }
.card p { color: var(--slate); flex-grow: 1; }
.card a.card-link {
  margin-top: var(--space-s);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--signal-dark);
  text-decoration: none;
}
.card:nth-child(even) a.card-link { color: var(--accent2); }
.card a.card-link:hover { text-decoration: underline; }

/* ---------- Skill groups ---------- */
.skill-group {
  border-top: 1px solid var(--line);
  padding-block: var(--space-m);
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-m);
}
@media (max-width: 720px) {
  .skill-group { grid-template-columns: 1fr; }
}
.skill-group h3 { margin-bottom: 0.3rem; }
.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  list-style: none;
}
.skill-list li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  color: var(--slate);
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-l);
}
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
}

/* ---------- Resume page ---------- */
.resume-header {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-top: 3px solid var(--signal);
  color: var(--ink);
  border-radius: 8px;
  padding: var(--space-m) var(--space-l);
  margin-top: var(--space-m);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-m);
}
.resume-header h1 { color: var(--ink); margin-bottom: 0.3rem; }
.resume-header .tagline { color: var(--signal-dark); font-size: 1.05rem; margin: 0; }
.resume-header .contact-line { color: var(--slate); font-family: var(--font-mono); font-size: 0.82rem; margin-top: 0.6rem; }
.resume-header .contact-line a { color: var(--ink); }

.resume-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-l);
  margin-top: var(--space-l);
  align-items: start;
}
@media (max-width: 780px) {
  .resume-layout { grid-template-columns: 1fr; }
}

.resume-side h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.resume-side-block { margin-bottom: var(--space-m); padding-bottom: var(--space-m); border-bottom: 1px solid var(--line); }
.resume-side-block:last-child { border-bottom: none; }
.resume-side-block p { color: var(--slate); font-size: 0.92rem; margin-bottom: 0.2rem; }

.timeline { position: relative; padding-left: 1.6rem; }
.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--line);
}
.timeline-item { position: relative; margin-bottom: var(--space-m); }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.6rem;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--signal);
}
.timeline-item.current::before { background: var(--signal); }
.timeline-role { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin: 0; }
.timeline-meta { font-family: var(--font-mono); font-size: 0.78rem; color: var(--signal-dark); margin: 0.15rem 0 0.5rem; }
.timeline-item p.desc { color: var(--slate); margin-bottom: 0; }
.timeline-item ul { margin-top: 0.4rem; }
.timeline-item ul li { margin-bottom: 0.45rem; line-height: 1.55; }
.timeline-item ul li::marker { color: var(--signal); }