/* Эфирика — стили сайта
   Цвета нот несут смысл: золото — верхние (цитрусы), лаванда — средние (цветы и травы),
   смола — базовые (корни и древесина). */

:root {
  --paper: #ebeee6;
  --label: #f7f8f3;
  --ink: #2a2131;
  --ink-soft: #5c5563;
  --rule: #c6c9bd;
  --rule-strong: #8f8a95;
  --leaf: #3f6455;

  --top: #c49422;
  --heart: #8b76b8;
  --base: #85502f;
  --empty: #d9dcd2;

  --tint-top: #f1e8cc;
  --tint-heart: #e6e1ef;
  --tint-base: #ece0d6;
  --tint-none: #e2e5dc;
  --tint-basics: #dde8e1;

  --serif: "Literata", "Georgia", "Times New Roman", serif;
  --wrap: 72rem;
  --gutter: 1rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1c1a20;
    --label: #25222a;
    --ink: #ebe7ef;
    --ink-soft: #aba4b3;
    --rule: #3a3641;
    --rule-strong: #6d6776;
    --leaf: #8cc0a9;

    --top: #dcb44a;
    --heart: #a893d6;
    --base: #c4855a;
    --empty: #33303a;

    --tint-top: #2c2719;
    --tint-heart: #27233a;
    --tint-base: #2d221d;
    --tint-none: #24222a;
    --tint-basics: #1f2925;
  }
}

:root[data-theme="dark"] {
  --paper: #1c1a20;
  --label: #25222a;
  --ink: #ebe7ef;
  --ink-soft: #aba4b3;
  --rule: #3a3641;
  --rule-strong: #6d6776;
  --leaf: #8cc0a9;

  --top: #dcb44a;
  --heart: #a893d6;
  --base: #c4855a;
  --empty: #33303a;

  --tint-top: #2c2719;
  --tint-heart: #27233a;
  --tint-base: #2d221d;
  --tint-none: #24222a;
  --tint-basics: #1f2925;
}

@media (min-width: 40rem) {
  :root { --gutter: 2rem; }
}

/* ---------- Основа ---------- */

*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-size: 1.0625rem;
  line-height: 1.65;
  font-variant-numeric: oldstyle-nums proportional-nums;
  overflow-wrap: break-word;
}

[hidden] { display: none !important; }

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

a {
  color: var(--leaf);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
a:hover { text-decoration-thickness: 2px; }

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

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: var(--paper);
  z-index: 10;
}
.skip:focus { top: 0.5rem; }

/* ---------- Шапка и подвал ---------- */

.site-head__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.logo__drop { width: 0.8rem; fill: var(--top); }

.site-nav { display: flex; gap: 1.5rem; }
.site-nav a {
  color: var(--ink);
  text-decoration: none;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.site-foot {
  margin-top: 6rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: 0.9375rem;
}
.site-foot__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  padding-block: 2rem 2.5rem;
}
.site-foot p { margin: 0; max-width: 38rem; }

/* ---------- Главная: заголовок и пирамида нот ---------- */

.hero {
  display: grid;
  gap: 3rem;
  padding-block: 3rem 4rem;
}

@media (min-width: 56rem) {
  .hero {
    grid-template-columns: 1fr minmax(0, 30rem);
    align-items: end;
    gap: 4rem;
    padding-block: 5rem 6rem;
  }
}

.hero__title {
  margin: 0;
  font-size: clamp(3.25rem, 11vw, 7.5rem);
  font-weight: 300;
  line-height: 0.95;
  letter-spacing: -0.035em;
}

.hero__lede {
  margin: 1.5rem 0 0;
  max-width: 28ch;
  font-size: clamp(1.1875rem, 2.4vw, 1.4375rem);
  line-height: 1.45;
  color: var(--ink-soft);
}

.pyramid {
  --shape-w: 8.5rem;
  --tier-h: 4rem;
}
@media (min-width: 30rem) {
  .pyramid { --shape-w: 12rem; --tier-h: 4.5rem; }
}

.pyramid__hint {
  margin: 0 0 3.25rem;
  max-width: 34ch;
  font-size: 0.9375rem;
  color: var(--ink-soft);
}

.pyramid__tiers {
  position: relative;
  display: grid;
  gap: 3px;
}

.pyramid__drop {
  position: absolute;
  left: calc(var(--shape-w) / 2 - 0.4rem);
  top: -2.25rem;
  width: 0.8rem;
  fill: var(--top);
  animation: drop 1s cubic-bezier(0.55, 0, 1, 0.45) 0.3s both;
}

.tier {
  display: grid;
  grid-template-columns: var(--shape-w) 1fr auto;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.tier__shape {
  display: block;
  height: var(--tier-h);
  background: var(--c);
  transition: opacity 0.25s ease;
  animation: pour 0.6s ease-out both;
}

.tier--top   { --c: var(--top); }
.tier--heart { --c: var(--heart); }
.tier--base  { --c: var(--base); }

/* Ярусы режутся из одного треугольника, поэтому складываются в пирамиду */
.tier--top .tier__shape   { clip-path: polygon(50% 0, 66.67% 100%, 33.33% 100%); animation-delay: 1.15s; }
.tier--heart .tier__shape { clip-path: polygon(33.33% 0, 66.67% 0, 83.33% 100%, 16.67% 100%); animation-delay: 1.4s; }
.tier--base .tier__shape  { clip-path: polygon(16.67% 0, 83.33% 0, 100% 100%, 0 100%); animation-delay: 1.65s; }

.tier__text { display: grid; gap: 0.125rem; min-width: 0; }

.tier__name {
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.25;
}

.tier__hint {
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--ink-soft);
}
/* На узком экране пояснения растянули бы ярусы и разорвали пирамиду */
@media (max-width: 29.99rem) {
  .tier__hint { display: none; }
}

.tier__count {
  font-size: 1.5rem;
  font-weight: 300;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--ink-soft);
  min-width: 1.5ch;
  text-align: right;
}

.tier:hover .tier__name { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
.tier:focus-visible { outline-offset: 4px; }

/* «Основы» — отдельная кнопка под пирамидой: статьи, которые не относятся к одной ноте */
.tier--basics {
  --c: var(--leaf);
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}
.tier__icon {
  display: flex;
  justify-content: center;
}
.tier__icon svg {
  width: 1.25rem;
  fill: var(--c);
  transition: opacity 0.25s ease;
}

.pyramid[data-active] .tier[aria-pressed="false"] .tier__shape,
.pyramid[data-active] .tier[aria-pressed="false"] .tier__icon svg { opacity: 0.25; }
.pyramid[data-active] .tier[aria-pressed="false"] .tier__text,
.pyramid[data-active] .tier[aria-pressed="false"] .tier__count { opacity: 0.6; }
.tier[aria-pressed="true"] .tier__name { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 0.18em; }

@keyframes drop {
  0%   { transform: translateY(-1rem); opacity: 0; }
  20%  { opacity: 1; }
  85%  { transform: translateY(1.9rem); opacity: 1; }
  100% { transform: translateY(2.2rem); opacity: 0; }
}

@keyframes pour {
  from { background-color: var(--empty); }
}

/* ---------- Список статей: этикетки ---------- */

.list__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  margin-bottom: 2rem;
}

.list__title {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 400;
  letter-spacing: -0.015em;
}

.list__reset {
  padding: 0;
  border: 0;
  background: none;
  color: var(--leaf);
  font: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  cursor: pointer;
}

.list__empty { color: var(--ink-soft); }

.labels {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr));
  gap: 1.5rem;
}

.label {
  --c: var(--rule-strong);
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.75rem 1.625rem 1.5rem;
  background: var(--label);
  border: 1px solid var(--rule-strong);
}
.label--top   { --c: var(--top); }
.label--heart { --c: var(--heart); }
.label--base  { --c: var(--base); }
.label--basics { --c: var(--leaf); }

/* Вторая, внутренняя рамка — как на аптечной этикетке */
.label::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid var(--rule);
  pointer-events: none;
  transition: border-color 0.2s ease;
}
.label:hover::before,
.label:focus-within::before { border-color: var(--c); }

.label__note {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: var(--ink-soft);
}

.label__title {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.label__title a {
  color: var(--ink);
  text-decoration: none;
}
/* Вся этикетка кликабельна */
.label__title a::after {
  content: "";
  position: absolute;
  inset: 0;
}
.label__title a:focus-visible { outline: none; }
.label:focus-within { outline: 2px solid var(--leaf); outline-offset: 3px; }
.label:hover .label__title a { text-decoration: underline; text-decoration-thickness: 1px; }

.label__oil {
  margin: 0.75rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.4;
}
.label__oil i { color: var(--ink-soft); }

.label__desc {
  margin: 0.875rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.label__meta {
  margin: auto 0 0;
  padding-top: 1.25rem;
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

.mini-pyramid {
  width: 1.125rem;
  flex: none;
  fill: var(--rule);
}
.mini-pyramid .is-on { fill: var(--c); }

/* ---------- Статья ---------- */

.post   { --c: var(--rule-strong); --tint: var(--tint-none); }
.post--top   { --c: var(--top);   --tint: var(--tint-top); }
.post--heart { --c: var(--heart); --tint: var(--tint-heart); }
.post--base  { --c: var(--base);  --tint: var(--tint-base); }
.post--basics { --c: var(--leaf); --tint: var(--tint-basics); }

.post-head {
  background: var(--tint);
  padding-block: 3rem;
  margin-bottom: 3rem;
}

.post-head__grid {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 56rem) {
  .post-head__grid {
    grid-template-columns: 1fr 20rem;
    align-items: end;
    gap: 4rem;
  }
}

.post-head__note {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  color: var(--ink);
  font-size: 0.9375rem;
  text-decoration: none;
}
.post-head__note:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.post-head__note .mini-pyramid { fill: color-mix(in srgb, var(--ink) 20%, transparent); }

.post-title {
  margin: 0;
  max-width: 22ch;
  font-size: clamp(2.125rem, 5.5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.post-lede {
  margin: 1.25rem 0 0;
  max-width: 38rem;
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

.post-meta {
  margin: 1.5rem 0 0;
  font-size: 0.875rem;
  color: var(--ink-soft);
}

.factsheet {
  position: relative;
  padding: 1.5rem 1.5rem 1.25rem;
  background: var(--label);
  border: 1px solid var(--rule-strong);
}
.factsheet::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid var(--c);
  pointer-events: none;
}

.factsheet__name {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 500;
  line-height: 1.25;
}

.factsheet__latin {
  margin: 0.25rem 0 0;
  font-style: italic;
  color: var(--ink-soft);
}

.factsheet__list { margin: 1.25rem 0 0; }
.factsheet__list div {
  padding-block: 0.5rem;
  border-top: 1px solid var(--rule);
}
.factsheet__list dt {
  font-size: 0.8125rem;
  color: var(--ink-soft);
}
.factsheet__list dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.45;
}

.post-image { margin: 0 0 3rem; }
.post-image img { width: 100%; max-height: 32rem; object-fit: cover; }
.post-image figcaption {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--ink-soft);
}

/* ---------- Текст статьи ---------- */

.prose {
  max-width: 40rem;
  font-size: 1.1875rem;
  line-height: 1.7;
  hyphens: auto;
}

.prose > :first-child { margin-top: 0; }

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose table,
.prose figure { margin: 0 0 1.25em; }

.prose h2 {
  margin: 2.25em 0 0.6em;
  font-size: 1.625rem;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.015em;
  hyphens: manual;
}

.prose h3 {
  margin: 1.75em 0 0.5em;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  hyphens: manual;
}

.prose ul,
.prose ol { padding-left: 1.25em; }
.prose li { margin-bottom: 0.4em; }
.prose li::marker { color: var(--c, var(--ink-soft)); }

.prose blockquote {
  margin-inline: 0;
  padding-left: 1.25rem;
  border-left: 3px solid var(--c, var(--rule-strong));
  color: var(--ink-soft);
  font-style: italic;
}

.prose strong { font-weight: 600; }

.prose hr {
  margin: 2.5em 0;
  border: 0;
  border-top: 1px solid var(--rule);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.45;
  display: block;
  overflow-x: auto;
}
.prose th,
.prose td {
  padding: 0.5rem 0.75rem 0.5rem 0;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}
.prose th { font-weight: 600; }

.prose code {
  font-size: 0.9em;
  padding: 0.1em 0.3em;
  background: var(--label);
}

/* Список литературы в конце статьи */
.sources {
  margin-top: 3rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--ink-soft);
  hyphens: manual;
}
.sources h2 {
  margin-top: 1.25rem;
  font-size: 1.125rem;
}
.sources li { margin-bottom: 0.5em; }

.caution {
  max-width: 40rem;
  margin-top: 3rem;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--c, var(--rule-strong));
  background: var(--label);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ink-soft);
}
.caution p { margin: 0; }

.post-nav {
  display: grid;
  gap: 1rem;
  max-width: 40rem;
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
@media (min-width: 40rem) {
  .post-nav { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

.post-nav__link {
  display: grid;
  gap: 0.25rem;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.35;
}
.post-nav__link span {
  font-size: 0.8125rem;
  color: var(--ink-soft);
}
.post-nav__link:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.post-nav__link--next { grid-column: -2; text-align: right; }

/* ---------- Простые страницы ---------- */

.page { padding-top: 3rem; }
.page .post-title { margin-bottom: 2rem; }

/* ---------- Без анимации, если пользователь так попросил ---------- */

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