/* ==========================================================================
   Mila Potapova — personal brand site
   Design system: tokens → base → layout → components → sections → utilities
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  color-scheme: light;

  /* colour */
  --bg: #F6F2EC;
  --bg-2: #EDE6DC;
  --surface: #FFFFFF;
  --ink: #1F1B17;
  --ink-2: #5E574F;
  --muted: #8A8279;
  --line: #DCD3C7;
  --accent: #8B6A3E;
  --accent-ink: #6E5330;
  --accent-soft: #E9DCC8;
  --olive: #6D765E;
  --focus: #2F5DAA;

  /* type */
  --font-display: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --fs-display: clamp(2.75rem, 7vw, 5.5rem);
  --fs-h2: clamp(2rem, 4.2vw, 3.25rem);
  --fs-h3: clamp(1.5rem, 2.6vw, 2.125rem);
  --fs-h4: 1.375rem;
  --fs-lead: clamp(1.125rem, 1.6vw, 1.375rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.9375rem;
  --fs-xs: 0.8125rem;
  --lh-body: 1.65;

  /* space */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 1rem;
  --s-4: 1.5rem;
  --s-5: 2.5rem;
  --s-6: 4rem;
  --s-7: 6rem;
  --section-y: clamp(4rem, 9vw, 7rem);

  /* shape & motion */
  --radius: 6px;
  --radius-lg: 10px;
  --shadow: 0 10px 30px rgba(31, 27, 23, 0.08);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur: 220ms;

  /* layout */
  --container: 1200px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --header-h: 72px;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: var(--header-h); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-color: var(--line); text-underline-offset: 0.18em; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.005em;
  text-wrap: balance;
}
h1 { font-size: var(--fs-display); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); line-height: 1.2; }
p { margin: 0 0 var(--s-3); }
p:last-child { margin-bottom: 0; }
ul { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }

/* language switching: only the active language is rendered */
html[data-lang="uk"] [lang="en"] { display: none !important; }
html[data-lang="en"] [lang="uk"] { display: none !important; }

/* ---------- 3. Layout ---------- */
.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.section--tint { background: var(--bg-2); }
.section__head { max-width: 46rem; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section__head p { color: var(--ink-2); font-size: var(--fs-lead); margin-top: var(--s-3); }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-ink); margin-bottom: var(--s-3);
}
.eyebrow::before { content: ""; width: 1.5rem; height: 1px; background: var(--accent); }

.grid { display: grid; gap: var(--s-4); }
@media (min-width: 720px) { .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }

/* ---------- 4. Components ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  min-height: 3rem; padding: 0 1.5rem; border-radius: 999px;
  font: 600 0.9375rem/1 var(--font-body); letter-spacing: 0.01em; text-decoration: none;
  border: 1px solid var(--ink); background: var(--ink); color: var(--bg);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
  cursor: pointer;
}
.btn:hover { background: var(--accent-ink); border-color: var(--accent-ink); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--bg); }

.meta { color: var(--muted); font-size: var(--fs-small); }
.meta strong { color: var(--ink-2); font-weight: 600; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 600; text-decoration: none;
  color: var(--accent-ink); font-size: var(--fs-small);
}
.link-arrow svg { width: 0.95rem; height: 0.95rem; transition: transform var(--dur) var(--ease); }
.link-arrow:hover svg { transform: translate(3px, -3px); }

/* image frames */
.media-frame { position: relative; overflow: hidden; border-radius: var(--radius-lg); background: var(--bg-2); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame--43 { aspect-ratio: 4 / 3; }
.media-frame--45 { aspect-ratio: 4 / 5; }
.media-frame--23 { aspect-ratio: 2 / 3; }
.media-frame--169 { aspect-ratio: 16 / 9; }
.media-frame--natural img { height: auto; }
.caption { margin-top: var(--s-2); font-size: var(--fs-xs); color: var(--muted); }

/* results: number + label pairs */
.results { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-3) var(--s-4); margin-top: var(--s-4); }
.results li { border-top: 1px solid var(--line); padding-top: var(--s-2); }
.results b { display: block; font-family: var(--font-display); font-size: 1.75rem; font-weight: 500; line-height: 1.1; }
.results span { color: var(--ink-2); font-size: var(--fs-small); }

/* bullet list with bold lead-in */
.bullets { display: grid; gap: var(--s-2); margin: var(--s-3) 0; color: var(--ink-2); }
.bullets li { position: relative; padding-left: 1.1rem; }
.bullets li::before { content: ""; position: absolute; left: 0; top: 0.75em; width: 0.45rem; height: 1px; background: var(--accent); }
.bullets b { color: var(--ink); font-weight: 600; }

/* photo gallery strip */
.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-3); }
@media (min-width: 720px) { .gallery { grid-template-columns: repeat(4, 1fr); } }
.gallery .media-frame img { transition: transform 600ms var(--ease); }
.gallery figure:hover img { transform: scale(1.03); }

/* triptych: three tall photos as one visual */
.triptych { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-2); }
.triptych .media-frame { border-radius: var(--radius); }

/* compact press list with thumbnails */
.press-mini { display: grid; gap: var(--s-3) var(--s-4); }
@media (min-width: 720px) { .press-mini { grid-template-columns: repeat(2, 1fr); } }
.press-mini a {
  display: grid; grid-template-columns: 7.5rem 1fr; gap: var(--s-3); align-items: center;
  text-decoration: none; color: inherit; padding: var(--s-2); margin: calc(-1 * var(--s-2)); border-radius: var(--radius-lg);
  transition: background var(--dur) var(--ease);
}
.press-mini a:hover { background: var(--surface); }
.press-mini .media-frame { aspect-ratio: 16 / 10; border-radius: var(--radius); }
.press-mini__src { display: block; font-size: var(--fs-xs); color: var(--muted); margin-bottom: 0.2rem; }
.press-mini__src b { color: var(--olive); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.press-mini__title { font-family: var(--font-display); font-size: 1.15rem; line-height: 1.25; font-weight: 500; }
.press-mini a:hover .press-mini__title { color: var(--accent-ink); }
.press-mini__ph { display: grid; place-items: center; height: 100%; font: italic 500 1rem/1 var(--font-display); color: var(--ink-2); }

.more { margin-top: var(--s-4); }
.more summary {
  display: inline-flex; align-items: center; gap: 0.5rem; cursor: pointer; list-style: none;
  font-weight: 600; font-size: var(--fs-small); color: var(--accent-ink);
}
.more summary::-webkit-details-marker { display: none; }
.more summary::after { content: "+"; font-size: 1.1rem; line-height: 1; }
.more[open] summary::after { content: "−"; }
.more[open] summary { margin-bottom: var(--s-4); }

/* ---------- 5. Header ---------- */
.header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}
.header.is-scrolled { border-bottom-color: var(--line); }
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); }
.header__tools { display: flex; align-items: center; gap: 0.75rem; }

.brand { display: inline-flex; align-items: center; gap: 0.75rem; text-decoration: none; color: var(--ink); }
.brand__mark {
  width: 2.25rem; height: 2.25rem; border-radius: 8px; background: var(--ink); color: var(--bg);
  display: grid; place-items: center; font: italic 500 1rem/1 var(--font-display);
}
.brand__name { font-family: var(--font-display); font-size: 1.375rem; font-weight: 500; letter-spacing: 0.01em; white-space: nowrap; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.5vw, 2rem); }
.nav a { text-decoration: none; font-size: var(--fs-small); font-weight: 500; color: var(--ink-2); }
.nav a:hover { color: var(--ink); }

.lang {
  display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; background: var(--surface);
}
.lang button {
  border: 0; background: transparent; color: var(--muted); font: 600 0.75rem/1 var(--font-body);
  letter-spacing: 0.08em; padding: 0.45rem 0.7rem; border-radius: 999px; cursor: pointer;
}
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }

.burger {
  display: none; width: 2.75rem; height: 2.75rem; border: 1px solid var(--line); border-radius: 999px;
  background: var(--surface); cursor: pointer; place-items: center;
}
.burger span { display: block; width: 1.1rem; height: 2px; background: var(--ink); position: relative; }
.burger span::before, .burger span::after { content: ""; position: absolute; left: 0; right: 0; height: 2px; background: var(--ink); transition: transform var(--dur) var(--ease); }
.burger span::before { top: -6px; } .burger span::after { top: 6px; }

@media (max-width: 860px) {
  .nav {
    position: fixed; inset: var(--header-h) 0 0 0; background: var(--bg);
    flex-direction: column; align-items: flex-start; justify-content: flex-start;
    padding: var(--s-5) var(--gutter); gap: var(--s-4);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  }
  .nav a { font-family: var(--font-display); font-size: 2rem; font-weight: 500; color: var(--ink); }
  body.nav-open .nav { opacity: 1; transform: none; pointer-events: auto; }
  body.nav-open { overflow: hidden; }
  .burger { display: grid; }
  body.nav-open .burger span { background: transparent; }
  body.nav-open .burger span::before { transform: translateY(6px) rotate(45deg); }
  body.nav-open .burger span::after { transform: translateY(-6px) rotate(-45deg); }
  .brand__name { font-size: 1.2rem; }
}

/* ---------- 6. Hero ---------- */
.hero { padding-block: clamp(2.5rem, 6vw, 5rem) var(--section-y); overflow: hidden; }
.hero__grid { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (min-width: 900px) { .hero__grid { grid-template-columns: 1.05fr 0.95fr; } }

.hero__lead { font-size: var(--fs-lead); color: var(--ink-2); max-width: 34rem; margin-top: var(--s-4); }
.hero__lead em { font-family: var(--font-display); font-style: italic; font-size: 1.15em; color: var(--ink); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-5); }
.hero__facts { display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-5); margin-top: var(--s-5); padding-top: var(--s-4); border-top: 1px solid var(--line); }
.hero__facts li { font-size: var(--fs-small); color: var(--ink-2); }
.hero__facts li strong { display: block; color: var(--ink); font-weight: 600; }
.hero__facts .hero__now { flex-basis: 100%; display: grid; gap: 0.35rem; max-width: 34rem; }
.hero__now a { color: var(--ink); font-weight: 600; text-decoration-color: var(--accent); }

.hero__media { position: relative; justify-self: center; width: min(100%, 460px); }
.hero__media::before {
  content: ""; position: absolute; inset: 1.25rem -1.25rem -1.25rem 1.25rem; border-radius: var(--radius-lg);
  background: var(--accent-soft); z-index: 0;
}
.hero__media .media-frame { position: relative; z-index: 1; box-shadow: var(--shadow); }
.hero__media .media-frame img { object-position: 50% 20%; }
@media (min-width: 900px) { .hero__media { justify-self: end; } }

/* ---------- 7. About ---------- */
.about__grid { display: grid; gap: clamp(2rem, 5vw, 4rem); }
@media (min-width: 960px) { .about__grid { grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); } }
.about__text { max-width: 40rem; }
.about__text h2 { font-size: clamp(1.75rem, 3.4vw, 2.625rem); line-height: 1.15; }
.about__text p { font-size: 1.125rem; color: var(--ink-2); }
.about__text p strong { color: var(--ink); font-weight: 600; }
.quote {
  margin: var(--s-4) 0 0; padding-left: var(--s-4); border-left: 2px solid var(--accent);
  font-family: var(--font-display); font-size: clamp(1.375rem, 2.2vw, 1.75rem); font-style: italic; line-height: 1.3; color: var(--ink);
}
.quote cite { display: block; margin-top: var(--s-2); font: 500 var(--fs-small) var(--font-body); font-style: normal; color: var(--muted); }
.quote cite a { color: inherit; }

.side h4 { margin-bottom: var(--s-3); }
.timeline { border-top: 1px solid var(--line); }
.timeline li { display: grid; grid-template-columns: 7.5rem 1fr; gap: var(--s-3); padding: var(--s-3) 0; border-bottom: 1px solid var(--line); }
.timeline time { font-size: var(--fs-small); color: var(--muted); font-weight: 600; letter-spacing: 0.02em; }
.timeline strong { display: block; font-weight: 600; }
.timeline span { display: block; color: var(--ink-2); font-size: var(--fs-small); }
.timeline strong + span + strong { margin-top: var(--s-2); }
.side + .side { margin-top: var(--s-5); }
.langs { color: var(--ink-2); font-size: var(--fs-small); }

/* ---------- 8. Projects ---------- */
.note {
  display: inline-flex; gap: var(--s-2); align-items: center; padding: 0.6rem 0.9rem; border-radius: var(--radius);
  background: var(--surface); border: 1px dashed var(--line); color: var(--ink-2); font-size: var(--fs-small); margin-bottom: var(--s-4);
}

/* a project = case row + optional extras (gallery, press) */
.project { padding-block: clamp(2rem, 5vw, 4rem); }
.project + .project { border-top: 1px solid var(--line); }
.project__extra { margin-top: clamp(1.5rem, 4vw, 2.5rem); }
.project__label { font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--s-3); }

.case { display: grid; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
@media (min-width: 900px) {
  .case { grid-template-columns: 1.1fr 0.9fr; }
  .case--flip .case__media { order: 2; }
}
.case__media .media-frame { box-shadow: var(--shadow); }
.case__body h3 { margin-bottom: var(--s-3); }
.case__body p { color: var(--ink-2); }
.case__meta { margin-bottom: var(--s-3); }
.case__meta span + span::before { content: "·"; margin: 0 0.5rem; color: var(--line); }
.case__links { display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-4); margin-top: var(--s-4); }

.subhead { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: var(--s-3); margin-bottom: var(--s-5); }
.subhead p { color: var(--ink-2); max-width: 34rem; margin: 0; }

.card { display: flex; flex-direction: column; gap: var(--s-3); }
.card .media-frame img { transition: transform 600ms var(--ease); }
.card:hover .media-frame img { transform: scale(1.03); }
.card__body h4 { margin-bottom: var(--s-2); }
.card__body p { color: var(--ink-2); font-size: var(--fs-small); }
.card__meta { display: block; margin-bottom: var(--s-2); }
.card__result { margin-top: var(--s-2); font-size: var(--fs-small); color: var(--accent-ink); font-weight: 600; }

/* Всі. Свої grid: two wide cards keep the 3-column rows full */
@media (min-width: 720px) {
  .vs-grid { grid-auto-flow: dense; }
  .card--wide { grid-column: span 2; }
  .card--wide .media-frame { aspect-ratio: 16 / 10; }
}
@media (min-width: 720px) and (max-width: 999px) {
  .vs-grid > .card:last-child { grid-column: span 2; }
  .vs-grid > .card:last-child .media-frame { aspect-ratio: 16 / 10; }
}

/* ---------- 9. Media ---------- */
.media-card { display: flex; flex-direction: column; gap: var(--s-3); text-decoration: none; color: inherit; }
.media-card .media-frame { box-shadow: var(--shadow); }
.media-card img { transition: transform 600ms var(--ease); }
.media-card:hover img { transform: scale(1.03); }
.media-card__src { font-size: var(--fs-xs); color: var(--muted); }
.media-card__src b { color: var(--olive); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin-right: 0.4rem; }
.media-card__title { font-family: var(--font-display); font-size: clamp(1.3rem, 2vw, 1.6rem); line-height: 1.2; font-weight: 500; transition: color var(--dur) var(--ease); }
.media-card:hover .media-card__title { color: var(--accent-ink); }

/* ---------- 10. Contact ---------- */
.contact__grid { display: grid; gap: clamp(2rem, 5vw, 4rem); }
@media (min-width: 900px) { .contact__grid { grid-template-columns: 0.9fr 1.1fr; } }
.contact__list li { padding: var(--s-3) 0; border-top: 1px solid var(--line); display: grid; gap: 0.2rem; }
.contact__list li:last-child { border-bottom: 1px solid var(--line); }
.contact__list .meta { font-size: var(--fs-xs); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; }
.contact__list a { font-family: var(--font-display); font-size: 1.5rem; font-weight: 500; text-decoration: none; word-break: break-word; }
.contact__list a:hover { color: var(--accent-ink); }
.contact__list span.value { font-family: var(--font-display); font-size: 1.5rem; }

.form { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(1.5rem, 3vw, 2.5rem); display: grid; gap: var(--s-3); }
.field { display: grid; gap: 0.4rem; }
.field label { font-size: var(--fs-small); font-weight: 600; color: var(--ink-2); }
.field input, .field textarea {
  width: 100%; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg);
  padding: 0.85rem 1rem; font: 400 1rem/1.4 var(--font-body); color: var(--ink);
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--focus); outline-offset: 1px; border-color: transparent; }
.field textarea { min-height: 9rem; resize: vertical; }
.form__row { display: grid; gap: var(--s-3); }
@media (min-width: 600px) { .form__row { grid-template-columns: 1fr 1fr; } }
.form__foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-3); }
.form__hint { font-size: var(--fs-xs); color: var(--muted); max-width: 22rem; }

/* ---------- 11. Footer ---------- */
.footer { padding: var(--s-5) 0 var(--s-6); border-top: 1px solid var(--line); }
.footer__inner { display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-5); align-items: center; justify-content: space-between; color: var(--muted); font-size: var(--fs-small); }
.footer__links { display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-4); }
.footer__links a { text-decoration: none; color: var(--ink-2); }
.footer__links a:hover { color: var(--ink); }

/* ---------- 12. Motion ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 600ms var(--ease), transform 600ms var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .card:hover .media-frame img, .gallery figure:hover img, .media-card:hover img { transform: none; }
}

/* ---------- 13. Utilities ---------- */
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: var(--s-3); top: -3rem; background: var(--ink); color: var(--bg); padding: 0.5rem 0.9rem; border-radius: var(--radius); z-index: 100; text-decoration: none; }
.skip-link:focus { top: var(--s-3); }