/* OxidativeState — shared styles. Tokens documented in DESIGN.md */
:root {
  --bg: #F3EEE3;
  --surface: #FBF8F1;
  --ink: #1E2A21;
  --ink-2: #4E5B50;
  --ink-3: #7A857A;
  --line: #DCD4C2;
  --moss: #2F4A37;
  --sage-tint: #E3E8D8;
  --rust: #B4532A;
  --rust-hover: #9C4522;
  --on-accent: #FFFFFF;
  --glow-a: rgba(157, 176, 142, 0.45);
  --glow-b: rgba(180, 83, 42, 0.14);
  --shadow: 0 1px 0 rgba(30, 42, 33, 0.04), 0 10px 28px -14px rgba(30, 42, 33, 0.28);

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --r-sm: 12px;
  --r: 16px;
  --r-lg: 20px;
  --pill: 999px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111712;
    --surface: #1A231C;
    --ink: #ECE7DA;
    --ink-2: #B7BEB1;
    --ink-3: #859084;
    --line: #2A352C;
    --moss: #A8C298;
    --sage-tint: #223026;
    --rust: #C9622F;
    --rust-hover: #D9733F;
    --glow-a: rgba(120, 150, 110, 0.18);
    --glow-b: rgba(201, 98, 47, 0.10);
    --shadow: 0 10px 30px -14px rgba(0, 0, 0, 0.6);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    radial-gradient(60vmax 50vmax at -10% -10%, var(--glow-a), transparent 60%),
    radial-gradient(50vmax 45vmax at 110% 110%, var(--glow-b), transparent 60%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--moss); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--moss); outline-offset: 3px; border-radius: 6px; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 560; letter-spacing: -0.02em; line-height: 1.15; margin: 0; color: var(--ink); }
h1 { font-size: clamp(30px, 6vw, 44px); }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
p { margin: 0; }

.micro { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; color: var(--ink-3); }
.muted { color: var(--ink-2); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Monogram (text-only logo for now) ---------- */
.monogram {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--moss); color: var(--bg);
  font-family: var(--font-display); font-weight: 600; font-size: 16px; letter-spacing: -0.02em;
  flex: none;
}
.monogram--lg { width: 88px; height: 88px; font-size: 34px; }

/* ---------- Hub (link-in-bio) ---------- */
.hub { max-width: 460px; margin: 0 auto; padding: 56px 16px 40px; display: flex; flex-direction: column; align-items: center; text-align: center; }
.hub__name { margin-top: 18px; font-size: clamp(30px, 8vw, 38px); }
.hub__handle { margin-top: 4px; color: var(--ink-3); font-size: 15px; }
.hub__bio { margin-top: 14px; color: var(--ink-2); max-width: 34ch; }
.hub__links { list-style: none; padding: 0; margin: 32px 0 0; width: 100%; display: grid; gap: 12px; }
.hub__social { margin-top: 28px; display: flex; gap: 12px; }

.linkbtn {
  width: 100%; min-height: 72px;
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px 12px 12px;
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r);
  text-decoration: none; text-align: left;
  font: inherit; cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, background-color .18s ease;
}
.linkbtn:hover { transform: translateY(-1px); border-color: var(--moss); box-shadow: var(--shadow); }
.linkbtn:active { transform: translateY(0); }
.linkbtn__icon { width: 46px; height: 46px; border-radius: var(--r-sm); background: var(--sage-tint); color: var(--moss); display: grid; place-items: center; flex: none; }
.linkbtn__icon svg { width: 22px; height: 22px; }
.linkbtn__text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.linkbtn__title { font-weight: 600; font-size: 16px; line-height: 1.3; }
.linkbtn__sub { font-size: 14px; color: var(--ink-2); line-height: 1.35; }
.linkbtn__arrow { width: 20px; height: 20px; color: var(--ink-3); flex: none; transition: transform .18s ease; }
.linkbtn:hover .linkbtn__arrow { transform: translateX(3px); color: var(--moss); }

.linkbtn--primary { background: var(--rust); border-color: var(--rust); color: var(--on-accent); }
.linkbtn--primary:hover { background: var(--rust-hover); border-color: var(--rust-hover); }
.linkbtn--primary .linkbtn__icon { background: rgba(255,255,255,.16); color: var(--on-accent); }
.linkbtn--primary .linkbtn__sub, .linkbtn--primary .linkbtn__arrow, .linkbtn--primary:hover .linkbtn__arrow { color: rgba(255,255,255,.85); }

/* expandable newsletter card */
.expand { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; transition: border-color .18s ease; }
.expand:has(.linkbtn[aria-expanded="true"]) { border-color: var(--moss); }
.expand .linkbtn { border: 0; border-radius: 0; background: transparent; }
.expand .linkbtn:hover { transform: none; box-shadow: none; }
.expand .linkbtn[aria-expanded="true"] .linkbtn__arrow { transform: rotate(90deg); }
.expand__panel { padding: 0 16px 16px; text-align: left; }

/* ---------- Forms ---------- */
.field { display: grid; gap: 6px; text-align: left; }
.field label, .field legend { font-size: 14px; font-weight: 600; color: var(--ink); padding: 0; }
.field .hint { font-size: 13px; color: var(--ink-3); font-weight: 400; }
.input, .select, .textarea {
  width: 100%; min-height: 48px;
  padding: 12px 14px;
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r-sm);
  font: inherit; font-size: 16px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.textarea { min-height: 110px; resize: vertical; line-height: 1.5; }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--moss); box-shadow: 0 0 0 3px color-mix(in srgb, var(--moss) 22%, transparent); }
.input::placeholder, .textarea::placeholder { color: var(--ink-3); }

.inline-form { display: flex; gap: 8px; }
.inline-form .input { flex: 1; min-width: 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 20px;
  border-radius: var(--pill); border: 1px solid transparent;
  font: inherit; font-weight: 600; font-size: 15px;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease, transform .15s ease;
}
.btn--accent { background: var(--rust); color: var(--on-accent); }
.btn--accent:hover { background: var(--rust-hover); }
.btn--moss { background: var(--moss); color: var(--bg); }
.btn--moss:hover { filter: brightness(1.1); }
.btn--ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn--ghost:hover { border-color: var(--moss); }
.btn[disabled] { opacity: .6; cursor: progress; }

.form-note { margin-top: 10px; font-size: 13px; color: var(--ink-3); }
.form-status { margin-top: 10px; font-size: 14px; font-weight: 500; }
.form-status[data-state="ok"] { color: var(--moss); }
.form-status[data-state="error"] { color: var(--rust); }

.choice-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; }
.choice { position: relative; }
.choice input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.choice span {
  display: flex; align-items: center; min-height: 44px; padding: 10px 14px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-sm);
  font-size: 15px; transition: border-color .15s, background-color .15s;
}
.choice input:checked + span { border-color: var(--moss); background: var(--sage-tint); font-weight: 600; }
.choice input:focus-visible + span { outline: 3px solid var(--moss); outline-offset: 2px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--ink-2); text-align: left; }
.check input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--moss); flex: none; }

/* ---------- Site chrome for inner pages ---------- */
.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.site-header__inner { max-width: 1040px; margin: 0 auto; padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--font-display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--rust); text-decoration-thickness: 2px; text-underline-offset: 6px; }
.nav .btn { min-height: 40px; padding: 0 16px; font-size: 14px; color: var(--on-accent); }
.nav .btn[aria-current="page"] { text-decoration: none; }
@media (max-width: 560px) {
  .brand__word { display: none; }
  .nav { gap: 16px; }
  .nav a { font-size: 14px; }
}

.page { max-width: 1040px; margin: 0 auto; padding: 48px 16px 72px; }
.page-head { max-width: 640px; margin-bottom: 36px; }
.page-head .micro { margin-bottom: 10px; }
.page-head p { margin-top: 12px; color: var(--ink-2); font-size: 18px; }

.site-footer { border-top: 1px solid var(--line); }
.site-footer__inner { max-width: 1040px; margin: 0 auto; padding: 28px 16px 40px; display: grid; gap: 8px; font-size: 13px; color: var(--ink-3); }
.site-footer a { color: var(--ink-2); }
.hub-footer { margin-top: 36px; font-size: 12px; color: var(--ink-3); max-width: 38ch; line-height: 1.5; }

.icon-btn { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line); background: var(--surface); color: var(--ink); transition: border-color .15s; }
.icon-btn:hover { border-color: var(--moss); }
.icon-btn svg { width: 18px; height: 18px; }

/* ---------- Cards & grids ---------- */
.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 860px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px; display: flex; flex-direction: column; gap: 10px; transition: border-color .18s, box-shadow .18s, transform .18s; }
a.card { text-decoration: none; color: inherit; }
a.card:hover { border-color: var(--moss); box-shadow: var(--shadow); transform: translateY(-2px); }
.card__meta { display: flex; gap: 10px; align-items: center; font-size: 13px; color: var(--ink-3); }
.card p { color: var(--ink-2); font-size: 15px; }
.card__more { margin-top: auto; padding-top: 6px; font-size: 14px; font-weight: 600; color: var(--moss); }

.tag { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: var(--pill); background: var(--sage-tint); color: var(--moss); font-size: 12px; font-weight: 600; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.chip { min-height: 40px; padding: 0 16px; border-radius: var(--pill); border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); font: inherit; font-size: 14px; font-weight: 500; cursor: pointer; transition: all .15s; }
.chip:hover { border-color: var(--moss); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--moss); border-color: var(--moss); color: var(--bg); }

.notice { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: var(--r); background: var(--sage-tint); color: var(--ink-2); font-size: 14px; margin-bottom: 28px; }
.notice strong { color: var(--ink); }

/* products */
.product__thumb { aspect-ratio: 4 / 3; border-radius: var(--r-sm); background: var(--sage-tint); display: grid; place-items: center; overflow: hidden; color: var(--moss); font-family: var(--font-display); font-size: 40px; font-weight: 600; }
.product__thumb img { width: 100%; height: 100%; object-fit: cover; }
.product__top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.product__code { font-size: 13px; color: var(--ink-2); }
.product__code b { font-family: ui-monospace, Consolas, monospace; color: var(--ink); background: var(--sage-tint); padding: 2px 6px; border-radius: 6px; }
.product .btn { margin-top: auto; align-self: flex-start; }

/* newsletter band */
.band { margin-top: 64px; padding: 32px; border-radius: var(--r-lg); background: var(--moss); color: var(--bg); display: grid; gap: 16px; }
.band h2 { color: var(--bg); }
.band p { color: color-mix(in srgb, var(--bg) 82%, transparent); }
.band .input { background: var(--bg); border-color: transparent; color: var(--ink); }
.band .form-note, .band .form-status { color: color-mix(in srgb, var(--bg) 75%, transparent); }
@media (min-width: 860px) { .band { grid-template-columns: 1.1fr 1fr; align-items: center; padding: 40px; } }
@media (max-width: 420px) { .band { padding: 24px 18px; } .inline-form { flex-direction: column; } }

/* article */
.prose { max-width: 680px; margin: 0 auto; }
.prose h1 { margin: 8px 0 14px; }
.prose h2 { margin: 40px 0 12px; }
.prose p, .prose ul, .prose ol { margin: 0 0 18px; color: var(--ink); }
.prose li { margin-bottom: 6px; }
.prose .lede { font-size: 20px; color: var(--ink-2); line-height: 1.55; }
.prose blockquote { margin: 28px 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--rust); font-family: var(--font-display); font-size: 22px; line-height: 1.4; color: var(--ink); }
.back { display: inline-flex; gap: 6px; align-items: center; font-size: 14px; font-weight: 600; text-decoration: none; margin-bottom: 24px; }

/* coaching form */
.form-wrap { max-width: 680px; }
.form-section { border: 0; padding: 0; margin: 0 0 36px; display: grid; gap: 18px; }
.form-section > legend { font-family: var(--font-display); font-size: 22px; font-weight: 560; letter-spacing: -0.01em; margin-bottom: 14px; color: var(--ink); }
.form-section .step { display: inline-grid; place-items: center; width: 28px; height: 28px; margin-right: 10px; border-radius: 50%; background: var(--sage-tint); color: var(--moss); font-family: var(--font-body); font-size: 13px; font-weight: 700; vertical-align: 3px; }
.row-2 { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 560px) { .row-2 { grid-template-columns: 1fr 1fr; } }
.success { padding: 32px; border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--moss); display: grid; gap: 10px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}