/* ─────────────────────────────────────────────
   sigidation — портфолио росписи стен · v2
   стиль: «тихая галерея» — светлый фон, воздух,
   сериф в заголовках, тонкие линии, один акцент
   ───────────────────────────────────────────── */

:root {
  --bg:     #FBFAF7;
  --ink:    #191817;
  --muted:  #7A756D;
  --line:   #E3DFD6;
  --accent: #A34A2A;
  --serif: "Cormorant", Georgia, serif;
  --sans: "Golos Text", system-ui, sans-serif;
  --wrap: 1200px;
  --pad: clamp(20px, 4vw, 48px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16.5px;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #fff; }

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

/* появление при скролле (только когда JS работает) */
.reveal { transition: opacity .8s cubic-bezier(.2,.6,.2,1), transform .8s cubic-bezier(.2,.6,.2,1); }
html.js .reveal:not(.in) { opacity: 0; transform: translateY(22px); }

/* ── шапка ── */

.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--pad);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.logo {
  font-family: var(--serif); font-weight: 600;
  font-size: 1.55rem; letter-spacing: .02em;
  color: var(--ink); text-decoration: none;
}

.topnav { display: flex; align-items: center; gap: clamp(14px, 2.6vw, 34px); }
.topnav a {
  color: var(--ink); text-decoration: none;
  font-size: .95rem; letter-spacing: .01em;
  position: relative;
}
.topnav a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -5px;
  height: 1px; background: var(--ink);
  transition: right .25s ease;
}
.topnav a:not(.nav-cta):hover::after { right: 0; }

.nav-cta {
  border: 1px solid var(--ink); border-radius: 999px;
  padding: 8px 18px;
  transition: background .2s ease, color .2s ease;
}
.nav-cta:hover { background: var(--ink); color: var(--bg); }

/* ── кнопки ── */

.btn {
  display: inline-block; text-decoration: none;
  font-family: var(--sans); font-weight: 500;
  font-size: .98rem; letter-spacing: .01em;
  padding: 14px 30px; border-radius: 999px;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-solid { background: var(--ink); color: var(--bg); border: 1px solid var(--ink); }
.btn-solid:hover { background: var(--accent); border-color: var(--accent); }
.btn-line { border: 1px solid var(--line); color: var(--ink); }
.btn-line:hover { border-color: var(--ink); }

/* ── hero ── */

.hero {
  max-width: var(--wrap); margin: 0 auto;
  padding: clamp(48px, 9vh, 110px) var(--pad) clamp(48px, 8vh, 96px);
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(32px, 6vw, 90px); align-items: center;
}

.kicker {
  font-size: .85rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 18px;
}

.hero-title {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1.05; letter-spacing: .005em;
}
.hero-title em { font-style: italic; font-weight: 500; color: var(--accent); }

.hero-sub {
  max-width: 32em; color: color-mix(in srgb, var(--ink) 80%, var(--muted));
  margin-top: 24px; font-size: clamp(1rem, 1.3vw, 1.1rem);
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.hero-photo img { width: 100%; height: auto; }
.hero-photo figcaption {
  font-size: .85rem; color: var(--muted); padding-top: 12px;
  border-bottom: 1px solid var(--line); padding-bottom: 14px;
}

/* ── секции: общее ── */

.section-head {
  max-width: var(--wrap); margin: 0 auto;
  padding: clamp(56px, 9vh, 100px) var(--pad) 8px;
}

.section-title {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(1.9rem, 3.6vw, 2.8rem); line-height: 1.1;
}

.section-note { color: var(--muted); margin-top: 8px; font-size: .95rem; }

/* ── фильтр работ ── */

.filter {
  max-width: var(--wrap); margin: 0 auto;
  padding: 22px var(--pad) 6px;
  display: flex; flex-wrap: wrap; gap: 10px;
}

.filter-btn {
  font-family: var(--sans); font-size: .92rem; letter-spacing: .01em;
  color: var(--ink); background: none; cursor: pointer;
  border: 1px solid var(--line); border-radius: 999px;
  padding: 9px 20px;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.filter-btn:hover { border-color: var(--ink); }
.filter-btn.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* ── работы ── */

.works-grid {
  max-width: var(--wrap); margin: 0 auto;
  padding: 26px var(--pad) 10px;
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(26px, 4vw, 56px) clamp(22px, 3vw, 40px);
  align-items: start;
}

.work { cursor: zoom-in; }
.work.hidden-cat { display: none; }
.work.fade { opacity: 0; transform: translateY(10px); }
.work { transition: opacity .4s ease, transform .4s ease; }

.work-img { overflow: hidden; background: var(--line); }
.work-img img {
  width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover;
  transition: transform .6s cubic-bezier(.2,.6,.2,1);
}
.work:hover .work-img img { transform: scale(1.025); }

.work figcaption {
  display: flex; justify-content: space-between; gap: 16px; align-items: baseline;
  padding: 12px 2px 0;
}
.work figcaption strong {
  font-family: var(--serif); font-weight: 600; font-size: 1.18rem; letter-spacing: .01em;
}
.work figcaption span { font-size: .85rem; color: var(--muted); text-align: right; flex-shrink: 0; max-width: 55%; }

/* ── направления ── */

.service-list {
  max-width: var(--wrap); margin: 0 auto; list-style: none;
  padding: 18px var(--pad) 10px;
}
.service-list li {
  display: grid; grid-template-columns: 70px 1fr; gap: 18px;
  padding: 26px 0; border-top: 1px solid var(--line);
  align-items: start;
}
.service-list li:last-child { border-bottom: 1px solid var(--line); }

.service-num {
  font-family: var(--serif); font-style: italic; font-weight: 500;
  font-size: 1.3rem; color: var(--accent); padding-top: 2px;
}
.service-list h3 {
  font-family: var(--serif); font-weight: 600; font-size: 1.35rem; margin-bottom: 4px;
}
.service-list p { color: var(--muted); max-width: 46em; font-size: .97rem; }

/* ── обо мне ── */

.about {
  max-width: var(--wrap); margin: 0 auto;
  padding: clamp(56px, 9vh, 100px) var(--pad) clamp(48px, 8vh, 90px);
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: clamp(30px, 5vw, 80px); align-items: start;
}

.about-photo img { width: 100%; height: auto; }

.about-text .section-title { margin-bottom: 18px; }
.about-text p { max-width: 40em; margin-bottom: 14px; color: color-mix(in srgb, var(--ink) 85%, var(--muted)); }

.process {
  list-style: none; margin-top: 26px; counter-reset: step;
}
.process li {
  counter-increment: step;
  padding: 13px 0 13px 44px; position: relative;
  border-top: 1px solid var(--line);
  font-size: .97rem; color: var(--muted);
}
.process li b { color: var(--ink); font-weight: 600; }
.process li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 14px;
  font-family: var(--serif); font-style: italic;
  color: var(--accent); font-size: 1.05rem;
}

/* ── контакты ── */

.contact { background: var(--ink); color: var(--bg); }

.contact-inner {
  max-width: 760px; margin: 0 auto; text-align: center;
  padding: clamp(70px, 12vh, 120px) var(--pad) clamp(60px, 9vh, 100px);
}

.contact-title {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.1rem, 4.6vw, 3.4rem); line-height: 1.08;
}

.contact-sub {
  max-width: 34em; margin: 18px auto 0;
  color: color-mix(in srgb, var(--bg) 75%, var(--ink));
  font-size: 1.02rem;
}

.contact-btns {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 14px;
  margin-top: 36px;
}
.contact .btn-solid { background: var(--bg); color: var(--ink); border-color: var(--bg); }
.contact .btn-solid:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.contact .btn-line { border-color: color-mix(in srgb, var(--bg) 35%, var(--ink)); color: var(--bg); }
.contact .btn-line:hover { border-color: var(--bg); }

.footer {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  max-width: var(--wrap); margin: 0 auto;
  padding: 22px var(--pad);
  border-top: 1px solid color-mix(in srgb, var(--bg) 18%, var(--ink));
  font-size: .88rem;
  color: color-mix(in srgb, var(--bg) 55%, var(--ink));
}
.footer a { color: inherit; }
.footer a:hover { color: var(--bg); }

/* ── лайтбокс ── */

.lightbox[hidden] { display: none; }

.lightbox {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(18, 17, 16, .94);
  display: grid; place-items: center; align-content: center; gap: 16px;
  padding: 4vh 4vw;
  cursor: zoom-out;
}
.lightbox img {
  max-width: 92vw; max-height: 84vh; width: auto; height: auto;
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
}
.lb-cap { color: #cfcbc4; font-size: .95rem; }
.lb-close {
  position: absolute; top: 18px; right: 22px;
  font-size: 1.5rem; line-height: 1; color: #fff;
  background: none; border: none; cursor: pointer; padding: 10px;
}

/* ── адаптив ── */

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-photo { max-width: 520px; }
  .about { grid-template-columns: 1fr; }
  .about-photo { max-width: 320px; }
}

@media (max-width: 640px) {
  .topnav a:not(.nav-cta) { display: none; }
  .works-grid { grid-template-columns: 1fr; }
  .work figcaption { flex-direction: column; gap: 2px; }
  .work figcaption span { text-align: left; max-width: none; }
  .hero-cta .btn, .contact-btns .btn { width: 100%; text-align: center; }
  .service-list li { grid-template-columns: 46px 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal:not(.in) { opacity: 1; transform: none; }
  * { transition-duration: .01s !important; }
}