/* Репетитор з англійської — сайт-візитка (демо).
   Концепція: сторінка-«лист». Велика типографіка, поля з англійськими фразами, один формат у реченні.
   Системні шрифти, без залежностей. */
:root {
  --paper: #ffffff;
  --ink: #1f1b16;
  --muted: #6b6257;
  --clay: #b04a27;
  --clay-dark: #8c3a1d;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --gutter: clamp(1.25rem, 5vw, 3.5rem);
  --margin-col: 11rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
@media (min-width: 900px) { body { font-size: 1.125rem; } }
h1, h2, h3, p, ol, ul, figure { margin: 0; }
ol, ul { padding: 0; list-style: none; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--clay); outline-offset: 4px; border-radius: 2px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.skip { position: fixed; left: 1rem; top: -4rem; z-index: 100; padding: 0.7rem 1rem; background: var(--ink); color: #fff; }
.skip:focus { top: 0.75rem; }

/* ---------- Верх: імʼя й три слова ---------- */
.top__bar {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0 2rem;
  max-width: 82rem; margin-inline: auto; padding: 0.5rem var(--gutter);
}
.top__name { display: inline-flex; align-items: center; min-height: 48px; font-family: var(--serif); font-size: 1.25rem; font-weight: 600; text-decoration: none; }
.top__nav { display: flex; gap: 0 1.75rem; }
.top__nav a {
  display: inline-flex; align-items: center; min-height: 48px;
  font-size: 0.9375rem; font-weight: 550; text-decoration: none; color: var(--muted);
  background: linear-gradient(var(--clay), var(--clay)) 0 calc(50% + 0.8rem) / 0 2px no-repeat;
  transition: color 0.2s, background-size 0.3s;
}
.top__nav a:hover, .top__nav a.is-current { color: var(--ink); background-size: 100% 2px; }

/* ---------- Розділи: поле з підписом ліворуч, основа праворуч ---------- */
.sec {
  display: grid; gap: 1.25rem 3rem;
  max-width: 82rem; margin-inline: auto;
  padding: clamp(3.5rem, 9vw, 8rem) var(--gutter) 0;
  scroll-margin-top: 0;
}
.sec--intro { padding-top: clamp(1.5rem, 5vw, 4rem); }
.sec--contact { padding-bottom: clamp(3rem, 8vw, 6rem); }
.sec__margin { align-self: start; }
.sec__label { display: flex; gap: 0.6rem; align-items: baseline; font-size: 0.8125rem; font-weight: 650; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.sec__label span { font-family: var(--serif); font-style: italic; font-size: 1rem; letter-spacing: 0; color: var(--clay); }
.sec__phrase { margin-top: 0.35rem; font-family: var(--serif); font-style: italic; font-size: 1.125rem; color: var(--clay); }
@media (min-width: 900px) {
  .sec { grid-template-columns: var(--margin-col) minmax(0, 1fr); }
  .sec__margin { position: sticky; top: 1.5rem; }
}

/* ---------- 01 · Про мене ---------- */
.intro { display: grid; gap: 2.5rem; }
.intro__title {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(2.35rem, 1.2rem + 4.6vw, 4.75rem); line-height: 1.07; letter-spacing: -0.025em;
  text-wrap: balance;
}
.intro__title em { font-style: italic; color: var(--clay); }
.intro__photo { width: min(100%, 22rem); }
.intro__photo img { display: block; width: 100%; height: auto; aspect-ratio: 2 / 3; object-fit: cover; background: #d9cdb8; }
.intro__photo figcaption { margin-top: 0.6rem; color: var(--muted); font-size: 0.8125rem; line-height: 1.4; }
.intro__text { display: grid; gap: 1.1rem; align-content: end; max-width: 34rem; }
.intro__lead { font-family: var(--serif); font-size: clamp(1.3rem, 1.1rem + 0.9vw, 1.7rem); line-height: 1.4; }
.intro__text p:not(.intro__lead):not(.intro__facts) { color: var(--muted); }
.intro__facts { margin-top: 0.5rem; font-size: 0.875rem; font-weight: 600; letter-spacing: 0.02em; }
.intro__facts i { margin: 0 0.4em; font-style: normal; color: var(--clay); }
@media (min-width: 900px) {
  .intro { grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(2rem, 4vw, 4rem) 2rem; }
  .intro__title { grid-column: 1 / 12; }
  .intro__photo { grid-column: 1 / 6; grid-row: 2; width: 100%; }
  .intro__text { grid-column: 7 / 13; grid-row: 2; padding-bottom: 2.2rem; }
}

/* ---------- 02 · Заняття: формат у реченні ---------- */
.pick {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(2rem, 1.1rem + 3.6vw, 3.75rem); line-height: 1.2; letter-spacing: -0.02em;
  max-width: 22ch;
}
.pick__group { display: inline; }
.pick__group[hidden] { display: none; }
.pick__group button {
  padding: 0; margin: 0; border: 0; background: none; cursor: pointer;
  font: inherit; letter-spacing: inherit; color: var(--clay);
  text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 0.18em; text-decoration-color: rgba(176, 74, 39, 0.35);
  transition: text-decoration-color 0.2s, color 0.2s;
}
.pick__group button:hover { text-decoration-color: var(--clay); }
.pick__group button[aria-checked="true"] { color: var(--ink); text-decoration-color: var(--clay); text-decoration-thickness: 4px; }
.fmts { margin-top: clamp(1.75rem, 4vw, 3rem); max-width: 34rem; }
.fmt + .fmt { margin-top: 2.5rem; }
.fmt h3 { font-family: var(--serif); font-weight: 500; font-size: 1.5rem; line-height: 1.2; }
.fmt p { margin-top: 0.6rem; color: var(--muted); }
.fmt .fmt__meta { color: var(--ink); font-size: 0.875rem; font-weight: 650; letter-spacing: 0.02em; }
.js .fmt h3 { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); }
.js .fmt[hidden] { display: none; }
.js .fmt { margin-top: 0; animation: fmt-in 0.4s ease both; }
@keyframes fmt-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- 03 · Умови: сходинки ---------- */
.steps { display: grid; gap: clamp(2rem, 5vw, 3.5rem); }
.steps li { max-width: 30rem; }
.steps__lead { font-family: var(--serif); font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.1rem); line-height: 1.25; letter-spacing: -0.01em; }
.steps li p:not(.steps__lead) { margin-top: 0.6rem; color: var(--muted); }
@media (min-width: 900px) {
  .steps li:nth-child(2) { margin-left: 18%; }
  .steps li:nth-child(3) { margin-left: 36%; }
}

/* ---------- 04 · Зв’язок ---------- */
.contact__title { max-width: 26ch; font-family: var(--serif); font-weight: 500; font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.25rem); line-height: 1.3; }
.sample { margin: clamp(1.5rem, 4vw, 2.5rem) 0 0; max-width: 40rem; padding-left: 1.25rem; border-left: 2px solid var(--clay); }
.sample figcaption { color: var(--muted); font-size: 0.8125rem; letter-spacing: 0.08em; text-transform: uppercase; }
.sample blockquote { margin: 0.6rem 0 0; font-family: var(--serif); font-style: italic; font-size: clamp(1.25rem, 1rem + 1.2vw, 1.75rem); line-height: 1.45; }
.reach__note { margin-top: 1.25rem; color: var(--muted); font-size: 0.9375rem; max-width: 40rem; }

/* ---------- Підвал ---------- */
.foot {
  display: grid; gap: 0.75rem;
  max-width: 82rem; margin-inline: auto; padding: 1rem var(--gutter) 2.5rem;
  color: var(--muted); font-size: 0.9375rem;
}
.foot__demo { max-width: 42rem; }
.foot__demo strong { color: var(--ink); }
.foot__meta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.25rem 1.5rem; }
.foot__meta a { display: inline-flex; align-items: center; min-height: 48px; color: var(--clay-dark); font-weight: 600; }
@media (min-width: 900px) {
  .foot { padding-left: calc(var(--gutter) + var(--margin-col) + 3rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

/* Без JavaScript вибір формату не потрібен: усі три описи видно */
html:not(.js) .pick { display: none; }

/* Скруглення */
.intro__photo img { border-radius: 14px; }
.pick__group button { border-radius: 10px; }

/* Перемикач мови в підвалі — праворуч */
a[data-lang-link] { margin-left: auto; }