/* =====================================================================
   Лендинг ателье «Золотой напёрсток»
   Стиль: тёмное золото + кремовый текст. Чистый CSS, CSS-3D, анимации.
   Одностраничник с якорной навигацией.
   ===================================================================== */

/* ---------- Переменные ---------- */
:root {
  --bg:        #14110E;
  --bg-2:      #1B1712;
  --panel:     #221C15;
  --panel-2:   #2B241B;
  --gold:      #C9A24B;
  --gold-2:    #E7CE86;
  --cream:     #ECE3D2;
  --muted:     #A99C84;
  --line:      rgba(201, 162, 75, 0.28);
  --shadow:    0 18px 45px rgba(0, 0, 0, 0.45);
  --font-head: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Montserrat', 'Segoe UI', system-ui, sans-serif;
  --maxw: 1160px;
  --radius: 14px;
  --transition: 0.35s ease;
}

/* ---------- База ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--cream);
  line-height: 1.65;
  font-weight: 300;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 600; line-height: 1.2; color: var(--cream); }
section { scroll-margin-top: 84px; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.gold { color: var(--gold); }
.eyebrow {
  font-size: 0.78rem; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--gold); font-weight: 500; display: inline-block; margin-bottom: 14px;
}

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 30px; border-radius: 50px;
  font-family: var(--font-body); font-size: 0.95rem; font-weight: 500;
  letter-spacing: 0.03em; cursor: pointer; border: 1px solid var(--gold);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}
.btn--primary { background: linear-gradient(135deg, var(--gold), var(--gold-2)); color: #1a1509; border: none; }
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(201, 162, 75, 0.35); }
.btn--ghost { background: transparent; color: var(--gold); }
.btn--ghost:hover { background: rgba(201, 162, 75, 0.12); transform: translateY(-3px); }

/* ---------- Шапка / якорная навигация ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(20, 17, 14, 0.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.logo { display: flex; align-items: center; gap: 12px; font-family: var(--font-head); font-size: 1.35rem; font-weight: 700; color: var(--cream); }
.logo__mark { width: 38px; height: 38px; display: grid; place-items: center; border: 1.5px solid var(--gold); border-radius: 50%; color: var(--gold); font-size: 1.05rem; }
.logo small { display: block; font-family: var(--font-body); font-size: 0.62rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); font-weight: 400; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a { font-size: 0.9rem; color: var(--muted); position: relative; padding: 4px 0; transition: color var(--transition); }
.nav__links a::after { content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 1.5px; background: var(--gold); transition: width var(--transition); }
.nav__links a:hover, .nav__links a.active { color: var(--cream); }
.nav__links a:hover::after, .nav__links a.active::after { width: 100%; }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 26px; height: 2px; background: var(--gold); transition: var(--transition); }

/* ---------- Секции ---------- */
.section { padding: 90px 0; }
.section--alt { background: var(--bg-2); }
.section__head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section__head h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); }
.section__head p { color: var(--muted); margin-top: 14px; }
.divider { display: flex; align-items: center; justify-content: center; gap: 14px; color: var(--gold); margin: 18px 0; }
.divider::before, .divider::after { content: ''; height: 1px; width: 60px; background: linear-gradient(to right, transparent, var(--gold)); }
.divider::after { background: linear-gradient(to left, transparent, var(--gold)); }

/* ---------- HERO ---------- */
.hero { position: relative; min-height: calc(100vh - 74px); display: flex; align-items: center; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(circle at 78% 25%, rgba(201, 162, 75, 0.18), transparent 45%),
              radial-gradient(circle at 15% 80%, rgba(201, 162, 75, 0.10), transparent 40%); }
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center; }
.hero__title { font-size: clamp(2.4rem, 6vw, 4.4rem); line-height: 1.08; }
.hero__title span { color: var(--gold); font-style: italic; }
.hero__text { color: var(--muted); font-size: 1.08rem; margin: 24px 0 34px; max-width: 480px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 40px; margin-top: 48px; border-top: 1px solid var(--line); padding-top: 26px; }
.hero__stats b { font-family: var(--font-head); font-size: 1.9rem; color: var(--gold); display: block; }
.hero__stats span { font-size: 0.82rem; color: var(--muted); }
.hero__visual { display: grid; place-items: center; perspective: 1100px; min-height: 340px; position: relative; }
.scene { width: 210px; height: 210px; perspective: 900px; will-change: transform; }
.cube { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; animation: cube-spin 18s infinite linear; }
.cube__face { position: absolute; width: 210px; height: 210px; display: grid; place-items: center; font-size: 4.6rem;
  background: linear-gradient(160deg, var(--panel-2), var(--panel)); border: 1px solid var(--line);
  box-shadow: inset 0 0 40px rgba(0,0,0,0.4); border-radius: 8px; }
.cube__face--front  { transform: translateZ(105px); }
.cube__face--back   { transform: rotateY(180deg) translateZ(105px); }
.cube__face--right  { transform: rotateY(90deg)  translateZ(105px); }
.cube__face--left   { transform: rotateY(-90deg) translateZ(105px); }
.cube__face--top    { transform: rotateX(90deg)  translateZ(105px); }
.cube__face--bottom { transform: rotateX(-90deg) translateZ(105px); }
@keyframes cube-spin { from { transform: rotateX(-22deg) rotateY(0deg); } to { transform: rotateX(-22deg) rotateY(360deg); } }
.hero__visual::after { content: ''; position: absolute; width: 220px; height: 40px; bottom: 24px;
  background: radial-gradient(ellipse, rgba(201,162,75,0.35), transparent 70%); filter: blur(8px); }

/* ---------- Услуги (карточки-перевёртыши) ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 26px; }
.flip { perspective: 1200px; height: 320px; }
.flip__inner { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform 0.8s cubic-bezier(.2,.8,.2,1); }
.flip:hover .flip__inner, .flip:focus-within .flip__inner { transform: rotateY(180deg); }
.flip__front, .flip__back { position: absolute; inset: 0; backface-visibility: hidden; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 28px; display: flex; flex-direction: column; }
.flip__front { background: linear-gradient(165deg, var(--panel), var(--bg-2)); align-items: flex-start; justify-content: center; }
.flip__front .ico { font-size: 2.8rem; margin-bottom: 16px; }
.flip__front h3 { font-size: 1.4rem; margin-bottom: 10px; }
.flip__front p { color: var(--muted); font-size: 0.95rem; }
.flip__hint { margin-top: auto; font-size: 0.78rem; color: var(--gold); letter-spacing: 0.05em; }
.flip__back { background: linear-gradient(165deg, var(--panel-2), var(--panel)); transform: rotateY(180deg); align-items: center; justify-content: center; text-align: center; }
.flip__back .price { font-family: var(--font-head); font-size: 2.2rem; color: var(--gold); margin-bottom: 6px; }
.flip__back small { color: var(--muted); }
.flip__back ul { margin-top: 18px; text-align: left; }
.flip__back li { font-size: 0.9rem; color: var(--cream); padding: 4px 0 4px 22px; position: relative; }
.flip__back li::before { content: '✓'; position: absolute; left: 0; color: var(--gold); }

/* ---------- О мастере ---------- */
.about { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 50px; align-items: center; }
.about__photo { height: 440px; border-radius: var(--radius); background: linear-gradient(160deg, var(--panel-2), var(--bg)); border: 1px solid var(--line); display: grid; place-items: center; font-size: 6rem; position: relative; }
.about__photo .badge { position: absolute; bottom: 22px; left: 22px; right: 22px; background: rgba(20,17,14,0.85); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; font-size: 0.85rem; }
.about__photo .badge b { color: var(--gold); font-family: var(--font-head); }
.about h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 10px; }
.about p { color: var(--muted); margin-bottom: 16px; }
.skills { margin-top: 26px; }
.skill { margin-bottom: 16px; }
.skill__top { display: flex; justify-content: space-between; font-size: 0.9rem; margin-bottom: 6px; }
.skill__bar { height: 7px; background: var(--panel-2); border-radius: 20px; overflow: hidden; }
.skill__fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--gold), var(--gold-2)); border-radius: 20px; transition: width 1.2s ease; }

/* ---------- Плитки-фичи ---------- */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.feature { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; transition: transform var(--transition), box-shadow var(--transition); }
.feature:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.feature .ico { font-size: 2.2rem; margin-bottom: 14px; }
.feature h3 { font-size: 1.2rem; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 0.92rem; }

/* ---------- Портфолио ---------- */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.work { position: relative; height: 300px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); transition: transform var(--transition), box-shadow var(--transition); }
.work:hover { transform: translateY(-8px) scale(1.015); box-shadow: var(--shadow); }
.work__img { position: absolute; inset: 0; display: grid; place-items: center; font-size: 4rem; }
.work--1 .work__img { background: linear-gradient(135deg, #3a2f22, #16120d); }
.work--2 .work__img { background: linear-gradient(135deg, #2f2a3a, #14121a); }
.work--3 .work__img { background: linear-gradient(135deg, #223a2f, #0f1613); }
.work--4 .work__img { background: linear-gradient(135deg, #3a2222, #180f0f); }
.work__cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 20px 18px; background: linear-gradient(to top, rgba(10,8,6,0.92), transparent); transform: translateY(8px); transition: transform var(--transition); }
.work:hover .work__cap { transform: translateY(0); }
.work__cap h3 { font-size: 1.1rem; }
.work__cap span { font-size: 0.8rem; color: var(--gold); }

/* ---------- Отзывы ---------- */
.quotes { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.quote { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; position: relative; }
.quote::before { content: '“'; font-family: var(--font-head); font-size: 4rem; color: var(--gold); position: absolute; top: 6px; left: 18px; opacity: 0.5; }
.quote p { position: relative; color: var(--cream); margin-bottom: 18px; }
.quote__who { display: flex; align-items: center; gap: 12px; }
.quote__ava { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--gold), var(--gold-2)); color: #1a1509; display: grid; place-items: center; font-family: var(--font-head); font-weight: 700; }
.quote__who b { font-size: 0.95rem; }
.quote__who span { font-size: 0.8rem; color: var(--muted); display: block; }

/* ---------- Цены ---------- */
.price-table { max-width: 760px; margin: 0 auto; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.price-table table { width: 100%; border-collapse: collapse; }
.price-table thead tr { background: var(--panel-2); }
.price-table th { text-align: left; padding: 16px 22px; font-family: var(--font-head); color: var(--gold); font-weight: 600; }
.price-table th:last-child { text-align: right; }
.price-table td { padding: 14px 22px; border-top: 1px solid var(--line); }
.price-table td:last-child { text-align: right; color: var(--gold-2); }

/* ---------- Контакты + форма ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; }
.contact__info li { display: flex; gap: 16px; align-items: flex-start; padding: 16px 0; border-bottom: 1px solid var(--line); }
.contact__info .ico { font-size: 1.4rem; width: 46px; height: 46px; display: grid; place-items: center; flex-shrink: 0; border: 1px solid var(--line); border-radius: 12px; color: var(--gold); }
.contact__info b { display: block; font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 2px; }
.contact__info a, .contact__info span { color: var(--cream); }
.contact__cta { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 50px; border: 1px solid var(--line); font-size: 0.88rem; color: var(--cream); transition: var(--transition); }
.chip:hover { background: var(--gold); color: #1a1509; border-color: var(--gold); transform: translateY(-2px); }

.form { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 30px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.85rem; margin-bottom: 7px; color: var(--muted); }
.field input, .field textarea, .field select { width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 13px 15px; color: var(--cream); font-family: var(--font-body); font-size: 0.95rem; transition: border var(--transition), box-shadow var(--transition); }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201,162,75,0.15); }
.field textarea { resize: vertical; min-height: 110px; }
.form__ok { display: none; margin-top: 16px; padding: 14px 16px; background: rgba(201,162,75,0.12); border: 1px solid var(--gold); border-radius: 10px; color: var(--gold-2); font-size: 0.92rem; }
.form__ok.show { display: block; }

/* ---------- CTA ---------- */
.cta { text-align: center; background: linear-gradient(135deg, var(--panel-2), var(--bg-2)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cta h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 14px; }
.cta p { color: var(--muted); max-width: 520px; margin: 0 auto 28px; }

/* ---------- Подвал ---------- */
.footer { background: #0F0C0A; border-top: 1px solid var(--line); padding: 48px 0 26px; }
.footer__grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px; margin-bottom: 32px; }
.footer p { color: var(--muted); font-size: 0.9rem; max-width: 320px; }
.footer h4 { font-size: 1rem; margin-bottom: 14px; color: var(--gold); }
.footer a { color: var(--muted); font-size: 0.9rem; }
.footer li { margin-bottom: 9px; }
.footer a:hover { color: var(--cream); }
.socials { display: flex; gap: 12px; margin-top: 16px; }
.socials a { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); display: grid; place-items: center; transition: var(--transition); }
.socials a:hover { background: var(--gold); color: #1a1509; transform: translateY(-3px); }
.footer__bottom { border-top: 1px solid var(--line); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 0.82rem; color: var(--muted); }

/* ---------- Анимация появления ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.12s; }
.reveal[data-delay="2"] { transition-delay: 0.24s; }
.reveal[data-delay="3"] { transition-delay: 0.36s; }

/* ---------- Адаптив ---------- */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero__visual { order: -1; min-height: 300px; }
  .hero__text { margin-left: auto; margin-right: auto; }
  .hero__actions, .hero__stats { justify-content: center; }
  .about, .contact { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav__links { position: fixed; inset: 74px 0 auto 0; flex-direction: column; gap: 0; background: var(--bg-2); border-bottom: 1px solid var(--line); padding: 10px 0; clip-path: inset(0 0 100% 0); transition: clip-path var(--transition); }
  .nav__links.open { clip-path: inset(0 0 0 0); }
  .nav__links a { padding: 15px 24px; width: 100%; }
  .nav__toggle { display: flex; }
  .section { padding: 64px 0; }
  .hero__stats { gap: 24px; }
}

/* ---------- Уважение к настройкам движения ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  .cube { animation: none; transform: rotateX(-22deg) rotateY(-30deg); }
}

/* === СИНИЙ ВАРИАНТ ПАЛИТРЫ (для сравнения) === */
:root{
  --bg:#0D1420; --bg-2:#111A2A; --panel:#16233A; --panel-2:#1D2F4C;
  --gold:#6FA8DC; --gold-2:#A9CBEF; --cream:#E8EEF7; --muted:#AEBCD2;
  --line:rgba(111,168,220,0.30);
}
body{font-weight:400;}
.hero__bg{background:radial-gradient(circle at 78% 25%,rgba(111,168,220,0.20),transparent 45%),radial-gradient(circle at 15% 80%,rgba(111,168,220,0.12),transparent 40%);}
.hero__visual::after{background:radial-gradient(ellipse,rgba(111,168,220,0.38),transparent 70%);}
.logo__mark{border:3px solid #E7CE86;font-size:1.42rem;color:#E7CE86;background:rgba(201,162,75,0.16);box-shadow:0 0 0 1px rgba(201,162,75,0.35), inset 0 0 12px rgba(201,162,75,0.22);}
.work__img{background:linear-gradient(135deg,#1D2F4C,#0D1420)!important;}