/* ============================================================
   Карьер «Гранит» — премиум дизайн-система
   ============================================================ */

:root {
  --bg: #0d131f;
  --bg-soft: #121a2a;
  --bg-card: #17202f;
  --bg-card-hover: #1b2436;
  --gold: #d9a441;
  --gold-bright: #f2c14e;
  --gold-deep: #a87a1f;
  --text: #e9eef6;
  --text-soft: #b6c1d2;
  --muted: #7d8ba1;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  padding-top: 78px;
  overflow-x: hidden;
}

::selection { background: var(--gold); color: #111827; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #2c3a52; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-deep); }

h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 800; }
a { transition: color 0.3s var(--ease); }

/* ---------- Хлеб навбара: amber градиент, стекло ---------- */

.navbar {
  background: linear-gradient(180deg, rgba(10, 15, 26, 0.92), rgba(10, 15, 26, 0.72));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  padding: 0.9rem 0;
  transition: padding 0.4s var(--ease), box-shadow 0.4s var(--ease), background 0.4s var(--ease);
}

.navbar.scrolled {
  padding: 0.45rem 0;
  background: rgba(9, 13, 22, 0.88);
  border-bottom-color: var(--line);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.02em;
  color: var(--text);
}
.navbar-brand:hover { color: var(--text) !important; }
.navbar-brand em {
  font-style: italic;
  color: var(--gold);
  font-weight: 500;
}

.brand-badge {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  font-size: 1rem;
  color: #111827;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  border-radius: 11px;
  box-shadow: 0 6px 18px rgba(217, 164, 65, 0.4);
  transform: rotate(45deg);
}

.navbar-toggler { border-color: rgba(255, 255, 255, 0.25); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(233,238,246,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.nav-link {
  position: relative;
  color: var(--text-soft);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  margin: 0 0.2rem;
  padding: 0.55rem 1rem !important;
  border-radius: 12px;
  transition: color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 1rem;
  bottom: 0.3rem;
  width: calc(100% - 2rem);
  height: 2px;
  background: linear-gradient(90deg, var(--gold-bright), var(--gold-deep));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s var(--ease);
}
.nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}
.nav-link:hover::after {
  transform: scaleX(0.4);
  transform-origin: left;
}
.nav-link.active {
  color: var(--gold-bright) !important;
  font-weight: 700;
  background: rgba(217, 164, 65, 0.14);
  box-shadow: inset 0 0 0 1px rgba(217, 164, 65, 0.3);
}
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
  height: 3px;
  box-shadow: 0 2px 10px rgba(242, 193, 78, 0.6);
}

.btn-gold {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  line-height: 1.15;
  padding: 0.7rem 1.4rem;
  border: none;
  border-radius: 14px;
  color: #141b26;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold) 55%, var(--gold-deep));
  background-size: 160% 160%;
  box-shadow: 0 10px 28px rgba(217, 164, 65, 0.35);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background-position 0.5s var(--ease);
}
.btn-gold:hover {
  transform: translateY(-3px);
  color: #141b26;
  box-shadow: 0 18px 40px rgba(217, 164, 65, 0.45);
  background-position: 100% 50%;
}
.btn-gold::after {
  content: '';
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-20deg);
  animation: shine 3.6s infinite;
}
@keyframes shine {
  0%, 55% { left: -60%; }
  100% { left: 130%; }
}

.cta-label {
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  opacity: 0.75;
}
.cta-phone { font-size: 1.02rem; letter-spacing: 0.02em; }

.btn-ghost {
  border: 1px solid rgba(233, 238, 246, 0.35);
  color: var(--text);
  border-radius: 14px;
  padding: 0.8rem 1.6rem;
  font-weight: 600;
  backdrop-filter: blur(6px);
  transition: all 0.35s var(--ease);
}
.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold-bright);
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}

.btn-outline-gold {
  border: 1px solid var(--gold);
  color: var(--gold-bright);
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.35s var(--ease);
}
.btn-outline-gold:hover {
  background: var(--gold);
  color: #141b26;
  transform: translateY(-2px);
}

/* ---------- Кнопка «наверх» ---------- */

.scroll-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 1050;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  font-size: 1.15rem;
  color: #141b26;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(217, 164, 65, 0.4);
  opacity: 0;
  transform: translateY(20px) scale(0.8);
  pointer-events: none;
  transition: all 0.4s var(--ease);
}
.scroll-top.visible { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.scroll-top:hover { transform: translateY(-4px) scale(1.05); box-shadow: 0 18px 40px rgba(217, 164, 65, 0.5); }

/* ---------- HERO ---------- */

.hero {
  position: relative;
  min-height: calc(100vh - 78px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 6rem 0;
}
.hero-bg {
  position: absolute;
  inset: -12% 0;
  z-index: 0;
  will-change: transform;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(13, 19, 31, 0.55), rgba(13, 19, 31, 0.72) 60%, var(--bg) 100%);
}
.hero-content { position: relative; z-index: 2; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gold-bright);
  margin-bottom: 1.6rem;
}
.hero-eyebrow::before {
  content: '';
  width: 46px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1.04;
  font-weight: 900;
  color: #f4f7fb;
  text-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  margin-bottom: 1.6rem;
}
.hero-title .grad {
  background: linear-gradient(120deg, var(--gold-bright), var(--gold) 45%, #ffdf9e);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.22rem);
  color: var(--text-soft);
  max-width: 620px;
  line-height: 1.7;
  margin-bottom: 2.4rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 1.6rem;
  transform: translateX(-50%);
  z-index: 3;
  width: 26px;
  height: 44px;
  border: 2px solid rgba(233, 238, 246, 0.35);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.hero-scroll span {
  width: 4px;
  height: 9px;
  border-radius: 4px;
  background: var(--gold);
  animation: scrollWheel 1.8s infinite;
}
@keyframes scrollWheel {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ---------- Анимация появления элементов hero ---------- */

.hero.in .hero-eyebrow,
.hero.in .hero-title,
.hero.in .hero-sub,
.hero.in .hero-actions { animation: heroUp 1s var(--ease) both; }
.hero.in .hero-eyebrow { animation-delay: 0.1s; }
.hero.in .hero-title { animation-delay: 0.25s; }
.hero.in .hero-sub { animation-delay: 0.45s; }
.hero.in .hero-actions { animation-delay: 0.65s; }

@keyframes heroUp {
  from { opacity: 0; transform: translateY(46px); filter: blur(6px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* ---------- Секции ---------- */

.section { padding: 5.5rem 0; }
.section-tight { padding: 4rem 0; }
.bg-soft { background: linear-gradient(180deg, var(--bg-soft), var(--bg)); }

.section-head { max-width: 640px; margin: 0 auto 3.4rem; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 0.9rem;
}
.eyebrow::before, .eyebrow::after {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--gold);
}

.section-title {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  font-weight: 900;
  color: #f4f7fb;
  line-height: 1.15;
  margin-bottom: 1rem;
}
.section-sub {
  color: var(--text-soft);
  font-size: 1.02rem;
  line-height: 1.65;
}

/* ---------- Карточки преимуществ ---------- */

.feature-card {
  position: relative;
  height: 100%;
  background: linear-gradient(160deg, var(--bg-card), #131c2b);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem 1.8rem;
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease), box-shadow 0.45s var(--ease);
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-bright), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.feature-card:hover {
  transform: translateY(-10px);
  border-color: rgba(217, 164, 65, 0.35);
  box-shadow: var(--shadow);
}
.feature-card:hover::before { transform: scaleX(1); }

.feature-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  font-size: 1.7rem;
  color: var(--gold-bright);
  background: linear-gradient(150deg, rgba(217, 164, 65, 0.18), rgba(217, 164, 65, 0.04));
  border: 1px solid rgba(217, 164, 65, 0.3);
  border-radius: 16px;
  margin-bottom: 1.4rem;
  transition: transform 0.45s var(--ease);
}
.feature-card:hover .feature-icon { transform: rotate(-8deg) scale(1.1); }

.feature-card h5 { font-size: 1.28rem; margin-bottom: 0.7rem; }
.feature-card p { color: var(--text-soft); line-height: 1.65; margin-bottom: 0; }

/* ---------- Карточки товаров ---------- */

.product-card {
  position: relative;
  height: 100%;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
}
.product-card:hover {
  transform: translateY(-10px);
  border-color: rgba(217, 164, 65, 0.4);
  box-shadow: var(--shadow);
}

.product-media {
  position: relative;
  height: 210px;
  overflow: hidden;
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease), filter 0.5s var(--ease);
}
.product-card:hover .product-media img { transform: scale(1.12); filter: saturate(1.15); }

.product-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(23, 32, 47, 0.9));
}

.product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(13, 19, 31, 0.75);
  backdrop-filter: blur(8px);
  color: var(--gold-bright);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border: 1px solid rgba(217, 164, 65, 0.35);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}

.product-body { padding: 1.4rem 1.4rem 1.5rem; }
.product-body h5 { font-size: 1.18rem; line-height: 1.3; margin-bottom: 0.6rem; }
.product-body .desc { color: var(--text-soft); font-size: 0.9rem; line-height: 1.6; }
.product-body .meta { flex: 1 1 auto; }

.price {
  font-size: 1.32rem;
  font-weight: 800;
  color: var(--gold-bright);
  letter-spacing: -0.01em;
}
.price small {
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-left: 0.15rem;
}
.price-nds {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: 0.2rem;
}

.btn-order {
  border-radius: 12px;
  font-weight: 700;
  border: 1px solid rgba(217, 164, 65, 0.45);
  color: var(--gold-bright);
  transition: all 0.35s var(--ease);
}
.btn-order:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: #141b26;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(217, 164, 65, 0.35);
}

/* ---------- Полоса статистики ---------- */

.stats-band {
  position: relative;
  padding: 4rem 0;
  border-block: 1px solid var(--line);
  background:
    radial-gradient(600px 220px at 15% 0%, rgba(217, 164, 65, 0.10), transparent),
    var(--bg-soft);
}
.stat { padding: 1.2rem 0; }
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 900;
  color: var(--gold-bright);
  line-height: 1;
}
.stat-num sup { font-size: 0.5em; color: var(--gold); }
.stat-label {
  margin-top: 0.6rem;
  color: var(--text-soft);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

/* ---------- CTA ---------- */

.cta {
  position: relative;
  overflow: hidden;
  padding: 5rem 0;
  text-align: center;
  border-block: 1px solid var(--line);
}
.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(217, 164, 65, 0.16), rgba(217, 164, 65, 0.03));
  background-size: 280% 280%;
  animation: ctaPan 8s ease infinite;
}
@keyframes ctaPan {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.cta .container { position: relative; z-index: 1; }
.cta h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
.cta .lead { color: var(--text-soft); max-width: 560px; margin: 0 auto 1.8rem; }

/* ---------- Заголовок внутренних страниц ---------- */

.page-header {
  position: relative;
  padding: 4.6rem 0;
  overflow: hidden;
  background:
    linear-gradient(rgba(13, 19, 31, 0.82), rgba(13, 19, 31, 0.86)),
    url('/images/page-header.jpg') center/cover no-repeat;
}
.page-header::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-bright), transparent 70%);
}
.page-header h1 {
  font-size: clamp(2.2rem, 4vw, 3.3rem);
  font-weight: 900;
}
.page-header p { color: var(--text-soft); max-width: 640px; margin-top: 0.6rem; }

/* ---------- Фильтр каталога ---------- */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  padding: 1rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 2.6rem;
}
.filter-bar .form-label { color: var(--text-soft); font-weight: 700; letter-spacing: 0.05em; margin: 0 0.6rem 0 0; white-space: nowrap; }
.filter-bar .form-select {
  background-color: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  font-weight: 600;
  min-width: 200px;
}
.filter-bar .form-select:focus { border-color: var(--gold); box-shadow: 0 0 0 0.2rem rgba(217, 164, 65, 0.2); }

/* ---------- Контакты ---------- */

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.9rem;
}
.contact-list { margin: 0; }
.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--text-soft);
  font-weight: 500;
}
.contact-list li:last-child { border-bottom: none; }
.contact-list .c-icon {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--gold-bright);
  background: rgba(217, 164, 65, 0.12);
  border: 1px solid rgba(217, 164, 65, 0.25);
  border-radius: 11px;
}

.form-control, .form-select {
  background-color: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 12px;
  padding: 0.8rem 1rem;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), background-color 0.3s var(--ease);
}
.form-control:focus, .form-select:focus {
  background-color: var(--bg-soft);
  color: var(--text);
  border-color: var(--gold);
  box-shadow: 0 0 0 0.2rem rgba(217, 164, 65, 0.18);
}
.form-control::placeholder { color: var(--muted); }
.form-label { font-weight: 600; color: var(--text-soft); letter-spacing: 0.02em; }

.map-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
}

/* ---------- Футер ---------- */

.site-footer {
  margin-top: auto;
  background: linear-gradient(180deg, var(--bg), #0a0f1a);
  border-top: 1px solid var(--line);
  padding: 3.4rem 0 1.6rem;
  color: var(--text-soft);
}
.f-heading {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--text);
  margin-bottom: 1rem;
}
.site-footer hr { border-color: var(--line) !important; opacity: 1 !important; }
.site-footer .small { line-height: 1.7; }

/* ---------- Scroll reveal ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease), filter 0.9s var(--ease);
  will-change: opacity, transform;
}
[data-reveal="left"] { transform: translateX(-52px); }
[data-reveal="right"] { transform: translateX(52px); }
[data-reveal="zoom"] { transform: scale(0.86); }
[data-reveal].revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- Адаптив ---------- */

@media (max-width: 991.98px) {
  body { padding-top: 70px; }
  .navbar { padding: 0.65rem 0; }
  .nav-cta { margin-left: 0 !important; }
  .hero { min-height: calc(100vh - 70px); }
}

@media (max-width: 575.98px) {
  .section { padding: 3.8rem 0; }
  .hero-actions .btn { width: 100%; }
  .scroll-top { right: 16px; bottom: 16px; }
}