/* ══════════════════════════════════════════════════════════
   Место на холсте
   Ground: terre verte (зелёная земля) — пигмент подмалёвка.
   Accent: тёплая охра, взятая из краски на кисти в шапке.
   Display: Caveat — рукописная, «как будто писал человек».
   ══════════════════════════════════════════════════════════ */

:root {
  --ground:    oklch(0.185 0.024 128);
  --ground-2:  oklch(0.232 0.029 128);
  --ground-3:  oklch(0.285 0.032 128);

  --ink:       oklch(0.962 0.006 95);
  --ink-2:     oklch(0.800 0.014 105);
  --ink-3:     oklch(0.690 0.016 112);

  --amber:     oklch(0.805 0.132 68);
  --amber-2:   oklch(0.700 0.145 55);
  --edge:      oklch(0.345 0.026 128);

  /* Четыре гарнитуры держатся только на том, что у каждой одна роль
     и они не встречаются в одном размере. Иерархия: Prata главная,
     рукописные — мелкие акценты. Подробности в DESIGN.md. */
  --display: 'Prata', Georgia, serif;          /* заголовки h1–h3 */
  --sign:    'Marck Script', cursive;          /* подпись: логотип, акцент в шапке */
  --note:    'Bad Script', cursive;            /* пометки от руки на карточках */
  --price:   'Caveat', cursive;                /* цена, как на бирке в мастерской */
  --text: 'Literata', Georgia, 'Times New Roman', serif;
  --ui:   'Onest', ui-sans-serif, system-ui, sans-serif;

  --gut: clamp(1.25rem, 5vw, 3.5rem);
  --band: clamp(4.5rem, 10vw, 8.5rem);

  --out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 620ms;

  --z-bg: 0;
  --z-content: 10;
  --z-nav: 30;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--text);
  font-size: clamp(1.0625rem, 0.98rem + 0.4vw, 1.1875rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

p { margin: 0 0 1em; text-wrap: pretty; }
img { max-width: 100%; display: block; }
/* author display on img would otherwise beat the UA rule for [hidden] */
[hidden] { display: none !important; }

/* ─────────── display ─────────── */
h1, h2, h3 {
  font-family: var(--display);
  font-weight: 400;
  margin: 0;
  letter-spacing: -0.012em;
  line-height: 1.14;
  text-wrap: balance;
}
h1 { font-size: clamp(2.5rem, 1.5rem + 4.4vw, 4.6rem); line-height: 1.1; }
h2 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.2rem); }
h3 { font-size: clamp(1.4rem, 1.28rem + 0.6vw, 1.7rem); }

::selection { background: var(--amber); color: oklch(0.2 0.03 70); }

:where(a, button, input, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--amber); color: oklch(0.2 0.03 70);
  padding: 0.75rem 1.25rem; font-family: var(--ui); text-decoration: none;
}
.skip:focus { left: 0; }

.fx { position: absolute; width: 0; height: 0; overflow: hidden; }

/* ─────────── buttons ─────────── */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 3.1rem; padding: 0.85rem 1.7rem;
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1px solid var(--edge); border-radius: 999px;
  font-family: var(--text); font-size: 1rem; font-weight: 500; line-height: 1;
  text-decoration: none; cursor: pointer;
  transition: background-color 200ms var(--out), color 200ms var(--out),
              border-color 200ms var(--out);
}
.btn--solid {
  --btn-bg: var(--amber);
  --btn-fg: oklch(0.21 0.035 70);
  border-color: var(--amber); font-weight: 600;
}
.btn--solid:hover { --btn-bg: var(--amber-2); border-color: var(--amber-2); }
.btn--quiet:hover { --btn-bg: var(--ground-3); border-color: var(--ground-3); }
.btn--wide { width: 100%; min-height: 3.5rem; }
.btn[disabled] { opacity: 0.55; cursor: progress; }

/* ═══════════ HERO ═══════════ */

.hero {
  position: relative;
  min-height: min(94svh, 58rem);
  display: grid; grid-template-rows: auto 1fr auto;
  padding: 0 var(--gut) clamp(1.5rem, 3vw, 2.5rem);
  isolation: isolate; overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; z-index: var(--z-bg); }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 50%; }
.hero::after {
  content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(100deg,
      oklch(0.170 0.026 128 / 0.92) 0%,
      oklch(0.180 0.025 128 / 0.66) 46%,
      oklch(0.185 0.024 128 / 0.22) 78%),
    linear-gradient(0deg,
      oklch(0.170 0.026 128 / 0.88) 0%,
      oklch(0.180 0.025 128 / 0.32) 42%,
      transparent 76%);
}

.nav, .hero__body, .hero__meta { position: relative; z-index: var(--z-content); }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: clamp(1.1rem, 2.4vw, 1.9rem) 0;
}
.wordmark {
  font-family: var(--sign);
  font-size: clamp(1.55rem, 1.3rem + 0.8vw, 2rem);
  line-height: 1;
}
.nav__cta {
  color: var(--ink); text-decoration: none; font-size: 0.95rem;
  padding: 0.6rem 1.2rem; border: 1px solid oklch(0.96 0.006 95 / 0.3);
  border-radius: 999px; min-height: 2.75rem; display: inline-flex; align-items: center;
  transition: background-color 200ms var(--out), border-color 200ms var(--out);
}
.nav__cta:hover { background: oklch(0.96 0.006 95 / 0.14); border-color: transparent; }

.hero__body { align-self: center; max-width: 50rem; padding: clamp(2rem, 6vw, 4rem) 0; }
.hero__title { margin-bottom: clamp(1rem, 2.4vw, 1.6rem); }
.hero__title .ln { display: block; }
/* вторая строка — рукописная подпись поверх печатной первой */
.hero__title .ln--em {
  font-family: var(--sign);
  color: var(--amber);
  font-size: 1.34em;
  line-height: 1.05;
  margin-top: 0.12em;
}

.hero__lede {
  max-width: 34rem;
  font-size: clamp(1.06rem, 1rem + 0.42vw, 1.28rem);
  color: var(--ink-2);
  margin-bottom: clamp(1.6rem, 3.4vw, 2.4rem);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.hero__meta {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.75rem;
  margin: 0; padding-top: 1.25rem;
  border-top: 1px solid oklch(0.96 0.006 95 / 0.16);
  font-family: var(--ui); font-size: 0.875rem; color: var(--ink-3);
}

/* ═══════════ shared section head ═══════════ */

.send, .how, .tech, .works, .order { padding: var(--band) var(--gut); }
.send, .how, .tech, .works, .studio, .order { border-top: 1px solid var(--edge); }

.send__head, .tech__head { max-width: 46rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
.send__head h2, .tech__head h2, .how__h, .works h2 { margin-bottom: 0.6rem; }
.send__head p, .tech__head p { color: var(--ink-2); margin: 0; }
.how__h { margin-bottom: clamp(2rem, 4vw, 3rem); }

/* ═══════════ cards ═══════════ */

.cards {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: clamp(0.85rem, 1.8vw, 1.25rem);
  grid-template-columns: repeat(auto-fit, minmax(16.5rem, 1fr));
}
.card {
  position: relative;
  background: var(--ground-2);
  border: 1px solid var(--edge);
  border-radius: 6px;
  padding: clamp(1.4rem, 2.4vw, 1.9rem);
  transition: border-color 240ms var(--out), background-color 240ms var(--out),
              transform 300ms var(--out);
}
.card h3 { margin-bottom: 0.5rem; color: var(--ink); }
.card p { margin: 0; color: var(--ink-2); font-size: 1rem; }

.cards--send .card:hover, .cards--how .card:hover {
  border-color: oklch(0.44 0.045 118); transform: translateY(-3px);
}

/* пометка от руки вместо иконки */
.card__mark {
  display: block; font-family: var(--note);
  font-size: 1.4rem; color: var(--amber); margin-bottom: 0.3rem;
}
.card__num {
  display: grid; place-items: center;
  width: 2.9rem; height: 2.9rem; margin-bottom: 0.9rem;
  font-family: var(--note); font-size: 1.75rem;
  color: var(--amber);
  border: 1px solid var(--edge); border-radius: 50%;
}

/* ═══════════ techniques ═══════════ */

.tech__grid { display: grid; gap: clamp(1.25rem, 3vw, 2.5rem); grid-template-columns: 1fr; }
@media (min-width: 60rem) { .tech__grid { grid-template-columns: 1fr 1.05fr; align-items: start; } }

.tech__menu { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); }
@media (min-width: 60rem) { .tech__menu { grid-template-columns: 1fr 1fr; } }

.card--tech {
  text-align: left; cursor: pointer; color: var(--ink);
  font: inherit; font-family: var(--text);
}
.card--tech:hover { border-color: oklch(0.44 0.045 118); }
.card--tech.is-on { border-color: var(--amber); background: oklch(0.26 0.035 122); }
.card--tech.is-on h3 { color: var(--amber); }

.tech__stage { margin: 0; }
.swatch {
  position: relative; isolation: isolate;
  aspect-ratio: 4 / 3; border-radius: 6px; overflow: hidden;
  background: oklch(0.90 0.012 88);
  box-shadow: 0 2px 4px oklch(0 0 0 / 0.3), 0 22px 60px -22px oklch(0 0 0 / 0.6);
  transition: opacity 320ms var(--out);
}
.swatch::before {
  content: ''; position: absolute; inset: -14%;
  background-color: var(--sw-base);
  background-image: var(--sw-marks);
  filter: var(--sw-fx);
}
.swatch::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, oklch(0 0 0 / 0.055) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(0deg,  oklch(0 0 0 / 0.045) 0 1px, transparent 1px 3px);
  mix-blend-mode: multiply;
}
.tech__stage figcaption { margin-top: 1rem; color: var(--ink-2); font-size: 1rem; max-width: 46ch; }

.swatch[data-swatch="maslo"] {
  --sw-base: oklch(0.40 0.085 52);
  --sw-fx: url(#fx-oil);
  --sw-marks:
    radial-gradient(54% 48% at 26% 32%, oklch(0.74 0.135 68) 0 22%, oklch(0.64 0.12 62 / 0.75) 48%, transparent 68%),
    radial-gradient(46% 42% at 72% 58%, oklch(0.40 0.095 152) 0 20%, oklch(0.36 0.08 150 / 0.75) 46%, transparent 66%),
    radial-gradient(40% 36% at 42% 84%, oklch(0.32 0.075 256) 0 20%, oklch(0.30 0.06 254 / 0.7) 46%, transparent 66%),
    radial-gradient(30% 28% at 84% 20%, oklch(0.86 0.075 92) 0 22%, transparent 62%),
    repeating-linear-gradient(112deg,
      oklch(1 0 0 / 0.09) 0 3px, oklch(0 0 0 / 0.11) 3px 7px, transparent 7px 14px);
}
.swatch[data-swatch="akvarel"] {
  --sw-base: oklch(0.965 0.006 95);
  --sw-fx: url(#fx-water);
  --sw-marks:
    radial-gradient(42% 40% at 34% 36%, oklch(0.66 0.125 236) 0 48%, oklch(0.74 0.09 236 / 0.45) 62%, transparent 70%),
    radial-gradient(36% 34% at 64% 54%, oklch(0.72 0.115 44) 0 45%, oklch(0.80 0.08 44 / 0.40) 60%, transparent 68%),
    radial-gradient(30% 30% at 48% 76%, oklch(0.64 0.10 152) 0 45%, oklch(0.74 0.07 152 / 0.35) 62%, transparent 70%);
}
.swatch[data-swatch="gouache"] {
  --sw-base: oklch(0.58 0.08 152);
  --sw-fx: url(#fx-gouache);
  --sw-marks:
    linear-gradient(146deg, oklch(0.78 0.115 80) 0 34%, transparent 34%),
    linear-gradient(318deg, oklch(0.38 0.09 262) 0 32%, transparent 32%),
    linear-gradient(94deg, oklch(0.88 0.055 92) 0 21%, transparent 21%);
}
.swatch[data-swatch="pencil"] {
  --sw-base: oklch(0.935 0.003 95);
  --sw-fx: url(#fx-pencil);
  --sw-marks:
    repeating-linear-gradient(56deg, oklch(0.32 0.005 95 / 0.55) 0 1px, transparent 1px 5px),
    repeating-linear-gradient(56deg, oklch(0.32 0.005 95 / 0.30) 0 1px, transparent 1px 12px),
    repeating-linear-gradient(-38deg, oklch(0.32 0.005 95 / 0.22) 0 1px, transparent 1px 9px),
    radial-gradient(58% 50% at 42% 44%, oklch(0.32 0.005 95 / 0.38), transparent 72%);
}

/* ═══════════ works ═══════════ */

.works__grid {
  display: grid; gap: clamp(0.75rem, 1.6vw, 1.25rem);
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}
.works__grid img {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover;
  border-radius: 4px; background: var(--ground-2);
}

/* ═══════════ studio ═══════════ */

.studio {
  position: relative; isolation: isolate;
  display: grid; align-items: end;
  min-height: min(74svh, 42rem);
  padding: var(--band) var(--gut);
}
.studio__bg { position: absolute; inset: 0; z-index: var(--z-bg); }
.studio__bg img { width: 100%; height: 100%; object-fit: cover; }
.studio::after {
  content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(168deg,
    oklch(0.185 0.024 128 / 0.52) 0%,
    oklch(0.185 0.024 128 / 0.80) 55%,
    oklch(0.170 0.026 128 / 0.95) 100%);
}
.studio__card { position: relative; z-index: var(--z-content); max-width: 34rem; }
.studio__card h2 { margin-bottom: 0.7rem; }
.studio__card p { color: var(--ink-2); }
.studio__price { font-size: 1rem; margin: 0; }
/* цена — как надпись мелом на бирке в мастерской */
.studio__price b {
  display: block; color: var(--amber);
  font-family: var(--price); font-size: 2.6rem; font-weight: 700; line-height: 1.1;
}

/* ═══════════ order ═══════════ */

.order {
  display: grid; gap: clamp(2rem, 5vw, 4.5rem); grid-template-columns: 1fr;
  padding-bottom: clamp(4rem, 8vw, 7rem);
  background:
    radial-gradient(70% 50% at 80% 0%, oklch(0.232 0.029 128), transparent 70%),
    var(--ground);
}
@media (min-width: 62rem) {
  .order { grid-template-columns: 0.8fr 1fr; align-items: start; }
  .order__intro { position: sticky; top: clamp(2rem, 6vw, 4rem); }
}
.order__intro h2 { margin-bottom: 0.9rem; }
.order__intro p { color: var(--ink-2); max-width: 32rem; }
.order__alt { font-size: 0.97rem; color: var(--ink-3); margin: 0; }
.order__alt a { color: var(--amber); }

.form { display: grid; gap: clamp(1.25rem, 2.4vw, 1.8rem); }

.drop { position: relative; }
.drop input[type="file"] {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; cursor: pointer; z-index: 2;
}
.drop input[type="file"]:focus-visible + .drop__face { outline: 2px solid var(--amber); outline-offset: 3px; }
.drop__face {
  display: grid; place-content: center; gap: 0.4rem; text-align: center;
  min-height: 11rem; padding: 1.5rem;
  border: 1px dashed var(--ground-3); border-radius: 6px;
  background: oklch(0.232 0.029 128 / 0.45);
  transition: border-color 220ms var(--out), background-color 220ms var(--out);
}
.drop.is-over .drop__face { border-color: var(--amber); background: oklch(0.285 0.032 128 / 0.7); }
.drop__title { font-family: var(--text); font-weight: 500; font-size: 1.05rem; }
.drop__sub { font-family: var(--ui); font-size: 0.85rem; color: var(--ink-3); }
.drop__preview {
  width: 100%; aspect-ratio: 16 / 10; object-fit: cover;
  border-radius: 6px; border: 1px solid var(--ground-3);
}
.drop.has-file .drop__face { display: none; }
.drop__clear {
  position: absolute; z-index: 3; right: 0.7rem; bottom: 0.7rem;
  min-height: 2.6rem; padding: 0.5rem 1.1rem; cursor: pointer;
  font-family: var(--text); font-size: 0.9rem;
  color: var(--ink); background: oklch(0.185 0.024 128 / 0.88);
  border: 1px solid var(--edge); border-radius: 999px;
  transition: background-color 200ms var(--out);
}
.drop__clear:hover { background: var(--ground-3); }

.f-set { border: 0; margin: 0; padding: 0; }
.f-set legend, .f-field label {
  font-family: var(--ui); font-size: 0.88rem; color: var(--ink-2);
  padding: 0; margin-bottom: 0.5rem; display: block;
}
.opt { color: var(--ink-3); }
.f-field { margin: 0; display: grid; }
.f-help { font-family: var(--ui); font-size: 0.8rem; color: var(--ink-3); margin-top: 0.4rem; }
.f-row { display: grid; gap: clamp(1.25rem, 2.4vw, 1.8rem); grid-template-columns: 1fr; }
@media (min-width: 34rem) { .f-row { grid-template-columns: 1fr 1fr; } }

input[type="text"], input[type="tel"], textarea {
  font-family: var(--text); font-size: 1rem; color: var(--ink);
  background: oklch(0.232 0.029 128 / 0.55);
  border: 1px solid var(--ground-3); border-radius: 4px;
  padding: 0.85rem 1rem; min-height: 3.1rem;
  transition: border-color 200ms var(--out), background-color 200ms var(--out);
}
textarea { resize: vertical; line-height: 1.55; }
input:hover, textarea:hover { border-color: oklch(0.40 0.03 128); }
input:focus, textarea:focus { border-color: var(--amber); background: oklch(0.232 0.029 128 / 0.9); }
::placeholder { color: var(--ink-3); opacity: 1; }
[aria-invalid="true"] { border-color: oklch(0.70 0.15 32) !important; }

.chips { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.chip span {
  display: inline-flex; align-items: center; min-height: 3rem;
  padding: 0.65rem 1.3rem; cursor: pointer;
  font-family: var(--text); font-size: 1rem;
  border: 1px solid var(--ground-3); border-radius: 999px;
  transition: border-color 200ms var(--out), background-color 200ms var(--out), color 200ms var(--out);
}
.chip:hover span { border-color: oklch(0.42 0.03 128); }
.chip input:checked + span {
  background: var(--amber); border-color: var(--amber);
  color: oklch(0.21 0.035 70); font-weight: 600;
}
.chip input:focus-visible + span { outline: 2px solid var(--amber); outline-offset: 3px; }

.f-status { margin: 0; font-family: var(--ui); font-size: 0.95rem; min-height: 1.4rem; }
.f-status.ok  { color: var(--amber); }
.f-status.err { color: oklch(0.76 0.14 32); }

.confirm {
  border: 1px solid var(--amber); border-radius: 6px;
  padding: clamp(1.4rem, 3vw, 2rem);
  background: oklch(0.26 0.035 122);
  display: grid; gap: 0.85rem;
}
.confirm h3 { color: var(--amber); }
.confirm p { margin: 0; color: var(--ink-2); font-size: 1rem; }
.confirm__skip { font-size: 0.9rem; color: var(--ink-3); }

/* ═══════════ foot ═══════════ */

.foot {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.5rem 1.5rem;
  padding: clamp(2rem, 4vw, 3rem) var(--gut);
  border-top: 1px solid var(--edge);
}
.foot p { margin: 0; font-size: 0.95rem; color: var(--ink-3); }

/* ═══════════ motion ═══════════ */
/* Nothing animates opacity from 0: a stalled animation costs the slide,
   never the content. */

.js .reveal { transform: translateY(16px); }
.js .reveal.in { transform: none; transition: transform var(--dur) var(--out); }

.js .hero__title .ln,
.js .hero__lede,
.js .hero__actions,
.js .hero__meta { animation: rise 820ms var(--out) backwards; }

.js .hero__title .ln:nth-child(1) { animation-delay: 60ms; }
.js .hero__title .ln:nth-child(2) { animation-delay: 150ms; }
.js .hero__lede    { animation-delay: 260ms; }
.js .hero__actions { animation-delay: 360ms; }
.js .hero__meta    { animation-delay: 450ms; }
.js .hero__bg img  { animation: settle 1800ms var(--out) both; }

@keyframes rise   { from { transform: translateY(20px); } to { transform: none; } }
@keyframes settle { from { transform: scale(1.06); } to { transform: scale(1); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .js .reveal { transform: none; }
  .card:hover { transform: none; }
}