/* ===========================
   МЕТАЛЛООБРАБОТКА45 — СТИЛИ
   =========================== */

:root {
  --c-bg:      #0b0e17;
  --c-surface: #121827;
  --c-surface2:#1a2236;
  --c-accent:  #e8a020;
  --c-accent2: #f0c060;
  --c-text:    #e0e6f0;
  --c-muted:   #7a8ba8;
  --c-border:  #1e2d45;
  --c-white:   #ffffff;
  --radius:    6px;
  --shadow:    0 4px 24px rgba(0,0,0,.45);
  --trans:     .3s ease;
  --font-head: 'Oswald', sans-serif;
  --font-body: 'Noto Sans', sans-serif;
  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
}

img { display: block; max-width: 100%; }
a { color: var(--c-accent); text-decoration: none; transition: color var(--trans); }
a:hover { color: var(--c-accent2); }

/* ============ UTILS ============ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 80px 0; }

.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head__label {
  font-family: var(--font-head);
  font-size: .8rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 10px;
}
.section-head__title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.15;
  margin-bottom: 14px;
}
.section-head__desc {
  color: var(--c-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-block;
  padding: .8em 2em;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .05em;
  cursor: pointer;
  transition: all var(--trans);
  border: 2px solid transparent;
}
.btn--primary {
  background: var(--c-accent);
  color: #0b0e17;
  border-color: var(--c-accent);
}
.btn--primary:hover {
  background: var(--c-accent2);
  border-color: var(--c-accent2);
  color: #0b0e17;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232,160,32,.35);
}
.btn--ghost {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,.35);
}
.btn--ghost:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}
.btn--full { width: 100%; text-align: center; }

/* ============ HEADER ============ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(11,14,23,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow var(--trans);
}
.header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.6); }

.header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo__icon {
  font-size: 1.8rem;
  animation: spin 8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.logo__name {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-white);
  line-height: 1;
}
.logo__name span { color: var(--c-accent); }
.logo__sub {
  font-size: .7rem;
  color: var(--c-muted);
  margin-top: 2px;
}

.nav {
  display: flex;
  gap: 24px;
  margin-left: auto;
}
.nav a {
  font-family: var(--font-head);
  font-size: .95rem;
  letter-spacing: .05em;
  color: var(--c-muted);
  transition: color var(--trans);
}
.nav a:hover { color: var(--c-accent); }

.header__phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-accent);
  white-space: nowrap;
  flex-shrink: 0;
}
.header__phone:hover { color: var(--c-accent2); }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.burger span {
  display: block;
  width: 26px; height: 2px;
  background: var(--c-text);
  transition: all var(--trans);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0b1220 0%, #0d2040 60%, #162840 100%);
}
.hero__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .35;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(11,14,23,.95) 40%, rgba(11,14,23,.4) 100%);
}

/* Decorative diagonal lines */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      -55deg,
      transparent 0,
      transparent 40px,
      rgba(232,160,32,.04) 40px,
      rgba(232,160,32,.04) 41px
    );
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding-top: 60px;
  padding-bottom: 80px;
}
.hero__tag {
  font-family: var(--font-head);
  font-size: .8rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 20px;
}
.hero__title {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.05;
  margin-bottom: 24px;
}
.hero__title span {
  color: var(--c-accent);
  display: block;
}
.hero__desc {
  color: rgba(224,230,240,.75);
  font-size: 1.05rem;
  margin-bottom: 36px;
  max-width: 540px;
}
.hero__btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.hero__stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero__stat strong {
  display: block;
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-accent);
  line-height: 1;
}
.hero__stat span {
  font-size: .8rem;
  color: var(--c-muted);
}

/* ============ SERVICES ============ */
.services { background: var(--c-surface); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 32px 28px 28px;
  position: relative;
  overflow: hidden;
  transition: transform var(--trans), border-color var(--trans), box-shadow var(--trans);
  animation: fadeUp .5s ease both;
}
.service-card[data-delay="100"] { animation-delay: .1s; }
.service-card[data-delay="200"] { animation-delay: .2s; }
.service-card[data-delay="300"] { animation-delay: .3s; }
.service-card[data-delay="400"] { animation-delay: .4s; }
.service-card[data-delay="500"] { animation-delay: .5s; }

@keyframes fadeUp {
  from { opacity:0; transform:translateY(30px); }
  to   { opacity:1; transform:translateY(0); }
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent2));
  transform: scaleX(0);
  transition: transform var(--trans);
  transform-origin: left;
}
.service-card:hover { transform: translateY(-6px); border-color: rgba(232,160,32,.3); box-shadow: 0 16px 40px rgba(0,0,0,.4); }
.service-card:hover::before { transform: scaleX(1); }

.service-card__icon {
  height: 220px;
  margin: -32px -28px 24px;
  overflow: hidden;
  background: var(--c-bg);
  position: relative;
}
.service-card__icon img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--trans);
}
.service-card:hover .service-card__icon img { transform: scale(1.05); }
.service-card__icon-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, var(--c-bg), var(--c-surface2));
}
.service-card__icon img:not([src=""]):not([src]) + .service-card__icon-fallback { display:none; }

.service-card h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: 10px;
}
.service-card p { color: var(--c-muted); font-size: .9rem; line-height: 1.6; margin-bottom: 20px; }
.service-card__link {
  font-family: var(--font-head);
  font-size: .9rem;
  color: var(--c-accent);
  letter-spacing: .05em;
  transition: letter-spacing var(--trans);
}
.service-card__link:hover { letter-spacing: .12em; }

/* ============ ADVANTAGES ============ */
.advantages { background: var(--c-bg); }

.advantages__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.advantages__text .section-head__label { text-align: left; }
.advantages__text h2 { text-align: left; }
.advantages__text > p { color: var(--c-muted); margin-bottom: 28px; }

.advantages__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.advantages__list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: .95rem;
}
.advantages__list li span {
  color: var(--c-accent);
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.advantages__img {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #1a2540, #0d4070);
}
.advantages__img img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.advantages__badge {
  position: absolute;
  bottom: 24px; left: 24px;
  background: var(--c-accent);
  color: #0b0e17;
  padding: 16px 20px;
  border-radius: var(--radius);
  text-align: center;
  line-height: 1.2;
}
.advantages__badge strong { font-family: var(--font-head); font-size: 2rem; display: block; }
.advantages__badge span { font-size: .8rem; }

/* ============ HOW WE WORK ============ */
.howwork { background: var(--c-surface); }

.howwork__steps {
  display: flex;
  align-items: stretch;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.step {
  flex: 1;
  min-width: 180px;
  max-width: 220px;
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 28px 20px;
  text-align: center;
  transition: border-color var(--trans);
  display: flex;
  flex-direction: column;
}
.step:hover { border-color: var(--c-accent); }
.step__num {
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--c-accent);
  opacity: .5;
  margin-bottom: 8px;
}
.step h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--c-white);
  margin-bottom: 8px;
}
.step p { font-size: .85rem; color: var(--c-muted); }
.step__arrow {
  font-size: 1.6rem;
  color: var(--c-accent);
  opacity: .4;
  align-self: center;
  flex-shrink: 0;
}

/* ============ PRICE ============ */
.price { background: var(--c-bg); }

.price__table-wrap {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid var(--c-border);
}
.price__table {
  width: 100%;
  border-collapse: collapse;
}
.price__table thead {
  background: var(--c-surface2);
}
.price__table th {
  font-family: var(--font-head);
  font-size: .9rem;
  letter-spacing: .05em;
  text-align: left;
  color: var(--c-accent);
  padding: 16px 20px;
  white-space: nowrap;
}
.price__table td {
  padding: 14px 20px;
  font-size: .9rem;
  border-top: 1px solid var(--c-border);
  color: var(--c-text);
}
.price__table tr:hover td { background: var(--c-surface2); }
.price__table td:last-child {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--c-accent);
  font-weight: 500;
}
.price__note {
  margin-top: 18px;
  font-size: .83rem;
  color: var(--c-muted);
  font-style: italic;
}

/* ============ WORKS ============ */
.works { background: var(--c-surface); }

.works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.work-item {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--c-surface2);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--c-border);
}
.work-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--trans);
}
.work-item:hover img { transform: scale(1.06); }
.work-item__label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 10px 14px;
  background: linear-gradient(to top, rgba(0,0,0,.75), transparent);
  font-family: var(--font-head);
  font-size: .85rem;
  color: var(--c-white);
  transform: translateY(100%);
  transition: transform var(--trans);
}
.work-item:hover .work-item__label { transform: translateY(0); }
.work-item--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-surface2);
}

/* ============ CONTACTS ============ */
.contacts { background: var(--c-bg); }

.contacts__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: .83rem;
  color: var(--c-muted);
  margin-bottom: 6px;
  font-weight: 500;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: .95rem;
  padding: 12px 16px;
  transition: border-color var(--trans);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--c-accent); }
.form-group select { appearance: none; }
.form-group textarea { resize: vertical; }

.form-group--file label { cursor: pointer; }
.form-group--file input { padding: 8px; }

.form-note {
  font-size: .78rem;
  color: var(--c-muted);
  text-align: center;
  margin-top: 12px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 48px 24px;
  background: var(--c-surface2);
  border-radius: 10px;
  border: 1px solid var(--c-accent);
}
.form-success__icon { font-size: 3rem; margin-bottom: 16px; }
.form-success h3 {
  font-family: var(--font-head);
  color: var(--c-white);
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.form-success p { color: var(--c-muted); }

.contact-block {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 28px;
}
.contact-block__icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.contact-block strong {
  display: block;
  font-family: var(--font-head);
  font-size: .95rem;
  color: var(--c-white);
  margin-bottom: 4px;
}
.contact-block p { font-size: .9rem; color: var(--c-muted); margin-bottom: 2px; }
.contact-block a { color: var(--c-muted); }
.contact-block a:hover { color: var(--c-accent); }

.map-placeholder {
  height: 200px;
  background: var(--c-surface2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--c-muted);
  font-size: .85rem;
}
.map-placeholder span { font-size: 2rem; }

/* ============ FOOTER ============ */
.footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: 32px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: space-between;
}
.footer__logo {
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--c-muted);
  display: flex;
  gap: 8px;
  align-items: center;
}
.footer__logo strong { color: var(--c-accent); }
.footer__links { display: flex; gap: 20px; }
.footer__links a { font-size: .85rem; color: var(--c-muted); }
.footer__links a:hover { color: var(--c-accent); }
.footer__copy { font-size: .78rem; color: var(--c-muted); }

/* ============ BACK TO TOP ============ */
.back-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--c-accent);
  color: #0b0e17;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: bold;
  box-shadow: 0 4px 16px rgba(232,160,32,.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans), transform var(--trans);
  z-index: 99;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-4px); color: #0b0e17; }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .advantages__inner { grid-template-columns: 1fr; }
  .advantages__img { aspect-ratio: 16/9; }
  .contacts__inner { grid-template-columns: 1fr; }
  .works__grid { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px; left: 0; right: 0;
    background: rgba(11,14,23,.98);
    padding: 24px;
    border-bottom: 1px solid var(--c-border);
    gap: 16px;
    z-index: 99;
  }
  .burger { display: flex; }
  .header__phone { display: none; }
  .howwork__steps { gap: 12px; }
  .step__arrow { display: none; }
}
@media (max-width: 580px) {
  .section { padding: 56px 0; }
  .hero__stats { gap: 24px; }
  .works__grid { grid-template-columns: 1fr; }
  .hero__btns { flex-direction: column; align-items: flex-start; }
  .footer__inner { flex-direction: column; text-align: center; }
  .footer__links { flex-wrap: wrap; justify-content: center; }

  /* Шапка на мобильном */
  .header__inner { gap: 12px; }
  .logo__sub { display: none; }
  .logo__name { font-size: 1rem; }
  .logo__icon { font-size: 1.4rem; }
}

/* ── Form error state ── */
.form-error {
  display: none;
  text-align: center;
  padding: 48px 24px;
  background: var(--c-surface2);
  border-radius: 10px;
  border: 1px solid #c0392b;
}
.form-error h3 {
  font-family: var(--font-head);
  color: var(--c-white);
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.form-error p { color: var(--c-muted); }

/* ── Карта — полная ширина ── */
.contacts__map {
  margin-top: 8px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--c-border);
  height: 280px;
}
.contacts__map iframe {
  width: 100%;
  height: 100%;
  display: block;
}