/* ---------- Tokens ---------- */
:root,
html[data-palette="forest"] {
  --ink: #23352B;
  --ink-soft: #57695C;
  --paper: #F3F1E9;
  --paper-raised: #EAE6D8;
  --paper-light: #FAF8F2;
  --line: #D8D6C8;
  --accent: #C98A2E;
  --accent-strong: #A96E20;
  --accent-tint: #F1E0BE;
  --accent-text: #7A4E17;
  --shadow: 0 2px 10px rgba(35, 53, 43, 0.09);
}

html[data-palette="navy"] {
  --ink: #26344A;
  --ink-soft: #5B6B80;
  --paper: #F6F1E6;
  --paper-raised: #EDE5D3;
  --paper-light: #FCF9F0;
  --line: #DDD3BE;
  --accent: #C98330;
  --accent-strong: #A96A22;
  --accent-tint: #F5E3C0;
  --accent-text: #7A4B18;
  --shadow: 0 2px 10px rgba(38, 52, 74, 0.09);
}

@media (prefers-color-scheme: dark) {
  :root,
  html[data-palette="forest"] {
    --ink: #E8ECE3;
    --ink-soft: #A9B7A6;
    --paper: #131E18;
    --paper-raised: #1A281F;
    --paper-light: #1F2E25;
    --line: #2B3B30;
    --accent: #E0A83D;
    --accent-strong: #EDBB5E;
    --accent-tint: #362A16;
    --accent-text: #EDBB5E;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
  }
  html[data-palette="navy"] {
    --ink: #E9EDF3;
    --ink-soft: #ABB9CC;
    --paper: #131B28;
    --paper-raised: #1A2536;
    --paper-light: #1F2C40;
    --line: #2B394E;
    --accent: #EBB65C;
    --accent-strong: #F0C578;
    --accent-tint: #362A16;
    --accent-text: #F0C578;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
  }
}

:root {
  --font-display: 'Newsreader', Georgia, 'Iowan Old Style', serif;
  --font-body: 'Karla', 'Segoe UI', Helvetica, Arial, sans-serif;
  /* Fixed (non-theme-swapping) dark text for on-accent buttons — the gold
     accent stays light-to-medium in both light and dark mode, so button
     text needs to stay dark in both, unlike --ink which intentionally flips. */
  --btn-ink: #20190D;
}

/* ---------- Reset & base ---------- */
* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  position: relative;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

/* subtle paper grain, fixed so it doesn't scroll-repeat oddly */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  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='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

header, main, footer { position: relative; z-index: 1; }

a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); text-wrap: balance; margin: 0; }

section {
  max-width: 1040px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

@media (max-width: 640px) {
  section { padding: 3rem 1.25rem; }
}

.lede {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 40rem;
  margin: 0.6rem 0 0;
}

.eyebrow {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin: 0 0 0.9rem;
}

.mark {
  background-image: linear-gradient(var(--accent-tint), var(--accent-tint));
  background-repeat: no-repeat;
  background-size: 100% 0.4em;
  background-position: 0 85%;
  padding: 0 0.05em;
}

.pill {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--accent-text);
  background: var(--accent-tint);
  padding: 0.25em 0.7em;
  border-radius: 999px;
  margin-bottom: 0.7rem;
}

.table-note {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 1rem;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 0.9rem 1.3rem;
  border-radius: 0 0 8px 0;
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  padding: 0.75em 1.4em;
  border-radius: 7px;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--btn-ink);
}
.btn-primary:hover { filter: brightness(0.92); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
  font-weight: 500;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-text); }
.btn-sm {
  min-height: 40px;
  padding: 0.5em 1em;
  font-size: 0.85rem;
  margin-top: 0.4rem;
}
.btn:focus-visible, .palette-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.6rem;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.9rem 1.5rem;
  max-width: 1040px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--ink);
}
.wordmark-accent {
  color: var(--accent-strong);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  font-size: 0.94rem;
}
.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
  color: var(--ink-soft);
}
.nav-links a:hover { color: var(--accent-text); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav-right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem 0.9rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0;
  cursor: pointer;
}
.nav-toggle-bar {
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
@media (prefers-reduced-motion: reduce) {
  .nav-toggle-bar { transition: none; }
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.palette-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem;
  gap: 0.2rem;
}
.palette-btn {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-soft);
  background: transparent;
  border: none;
  border-radius: 999px;
  min-height: 36px;
  padding: 0.4rem 0.85rem;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}
.palette-btn[aria-pressed="true"] {
  background: var(--accent);
  color: var(--btn-ink);
}

.nav-cta .cta-short { display: none; }

@media (max-width: 760px) {
  .nav-toggle { display: flex; }

  .nav-menu {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 1.2rem;
    width: 100%;
    padding-top: 1.1rem;
    margin-top: 1rem;
    border-top: 1px solid var(--line);
  }
  .nav-menu.is-open { display: flex; }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
  }
  .nav-links a { min-height: auto; }

  .nav-right {
    flex-direction: column;
    align-items: stretch;
  }
  .palette-switch { align-self: flex-start; }
}

@media (max-width: 480px) {
  .nav-cta .cta-full { display: none; }
  .nav-cta .cta-short { display: inline; }
}

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 3rem;
  align-items: center;
  padding-top: 3.5rem;
  padding-bottom: 4rem;
}

.hero h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  font-weight: 600;
  margin: 0 0 0.9rem;
}

.hero .bio {
  margin-top: 1.2rem;
  font-size: 0.98rem;
  color: var(--ink-soft);
  max-width: 36rem;
}
.hero .bio strong { color: var(--ink); }

.credential-line {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 1.3rem;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 1.5rem; }
  .hero h1 { font-size: 2.2rem; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.85rem; }
  .cta-row .btn { width: 100%; }
}

/* ---------- Hero visual: note stack ---------- */
.hero-visual {
  position: relative;
  overflow: hidden;
  padding: 1.5rem 1rem 2.5rem 2.5rem;
}
.note-card {
  border-radius: 12px;
}
.note-card-back {
  position: absolute;
  inset: 1.5rem 0.5rem 0.5rem 3rem;
  background: var(--accent-tint);
  transform: rotate(-4deg);
}
.note-card-photo {
  position: relative;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transform: rotate(2deg);
  padding: 1.4rem 1.4rem 1.6rem;
}
.photo-frame {
  aspect-ratio: 4 / 5;
  border-radius: 8px;
  overflow: hidden;
}
.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.photo-caption {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0.9rem 0 0;
  text-align: center;
}

@media (max-width: 900px) {
  .hero-visual { max-width: 22rem; margin: 0 auto; padding: 1.5rem 1rem 2rem 2rem; }
}

/* ---------- How I teach ---------- */
.how {
  max-width: 960px;
  margin: 2.5rem auto;
  background: var(--paper-light);
  border-radius: 20px;
  padding: 4.5rem 3.5rem;
  box-shadow: var(--shadow);
}
@media (max-width: 640px) {
  .how {
    margin: 1.5rem 1rem;
    max-width: none;
    padding: 3rem 2rem;
    border-radius: 14px;
  }
}

.steps {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.steps li { display: flex; flex-direction: column; gap: 0.7rem; }
.step-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent-text);
  background: var(--accent-tint);
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.35rem; }
.steps p { margin: 0; font-size: 0.9rem; color: var(--ink-soft); }

@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
}

/* ---------- Card grids (tracks / who / pricing) ---------- */
.track-grid, .who-grid, .pricing-grid {
  display: grid;
  gap: 1.1rem;
  margin-top: 2rem;
}
.track-grid { grid-template-columns: repeat(4, 1fr); }
.who-grid, .pricing-grid { grid-template-columns: 1fr 1fr; }

.track-card, .who-card, .price-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.4rem 1.4rem;
  box-shadow: var(--shadow);
}
.track-card h3::before {
  content: "";
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 0.5rem;
}
.track-card h3, .who-card h3, .price-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.4rem; }
.track-card p, .who-card p, .price-card p { margin: 0; font-size: 0.9rem; color: var(--ink-soft); }
.track-card-alt { border-style: dashed; }

.price-card .price {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0.1rem 0 0.6rem;
}
.price-card .price span {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-soft);
  font-weight: 400;
}

@media (max-width: 860px) {
  .track-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .track-grid, .who-grid, .pricing-grid { grid-template-columns: 1fr; }
}

/* ---------- Contact ---------- */
.contact { text-align: left; }
.hero-note {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 1.1rem;
}

/* ---------- Blog ---------- */
.blog-hero { padding-bottom: 1.5rem; }
.blog-hero h1 { font-size: 2.2rem; margin: 0.5rem 0 0.6rem; }

.post-list {
  display: grid;
  gap: 1.2rem;
  padding-top: 0.5rem;
}
.post-card {
  display: block;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.6rem 1.7rem;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
}
.post-card:hover { border-color: var(--accent); }
.post-card h2 { font-size: 1.3rem; margin: 0.5rem 0 0.5rem; }
.post-card p { margin: 0 0 0.6rem; color: var(--ink-soft); font-size: 0.95rem; }
.post-card .post-meta { margin-bottom: 0; }

.post-meta {
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-family: var(--font-body);
}

.post {
  max-width: 1040px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 5rem;
}
.post-header { padding-bottom: 0.5rem; }
.post-header h1 { font-size: 2.3rem; margin: 0.5rem 0 0.6rem; }

.post-body {
  max-width: 42rem;
  font-size: 1.05rem;
  line-height: 1.75;
  margin-top: 2rem;
}
.post-body h2 { font-size: 1.4rem; margin: 2.2rem 0 0.8rem; }
.post-body p { margin: 0 0 1.1rem; }
.post-body ul { margin: 0 0 1.1rem; padding-left: 1.3rem; }
.post-body li { margin-bottom: 0.5rem; }
.post-body strong { color: var(--ink); }

.author-bio {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  max-width: 42rem;
}
.author-bio img {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.author-bio-name {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0 0 0.15rem;
}
.author-bio-text {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0;
}

.post-cta {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--paper-light);
  border-radius: 16px;
  text-align: center;
}
.post-cta h2 { font-size: 1.3rem; margin-bottom: 0.4rem; }
.post-cta .lede { margin: 0 auto 1.2rem; }

.post-related { margin-top: 3rem; }
.post-related h2 { font-size: 1.2rem; margin-bottom: 1rem; }
.post-related-card { text-decoration: none; color: inherit; display: block; }

@media (max-width: 640px) {
  .post { padding: 2.5rem 1.25rem 3.5rem; }
  .post-header h1 { font-size: 1.9rem; }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--ink-soft);
}