/* ============================================
   PESKOSTRY.RU — Design System
   Индустриальная тёмная тема
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Manrope:wght@400;500;600;700&display=swap');

/* ---- Tokens ---- */
:root {
  --accent:    #E84C2B;
  --accent-h:  #FF5E3A;
  --metal:     #B8C0CC;
  --dark:      #0F1114;
  --dark2:     #161A1F;
  --dark3:     #1E2228;
  --dark4:     #252A32;
  --text:      #E4E8F0;
  --text-2:    #9AA0AE;
  --text-3:    #5C6270;
  --border:    rgba(255,255,255,0.07);
  --border-2:  rgba(255,255,255,0.12);
  --radius:    3px;
  --ff-display: 'Bebas Neue', sans-serif;
  --ff-body:   'Manrope', sans-serif;
  --max-w:     1280px;
  --transition: 0.22s ease;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-body);
  background: var(--dark);
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: var(--ff-body); cursor: pointer; border: none; background: none; }

/* ---- Utility ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 40px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ---- Animations ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-16px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}
@keyframes scanline {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

.animate-up { animation: fadeUp 0.6s ease both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.55s; }

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(15,17,20,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 32px;
}
.nav__logo {
  font-family: var(--ff-display);
  font-size: 20px;
  letter-spacing: 3px;
  color: var(--metal);
  white-space: nowrap;
  flex-shrink: 0;
}
.nav__logo span { color: var(--accent); }

.nav__links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav__links a {
  font-size: 13px;
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: var(--radius);
  letter-spacing: 0.3px;
  transition: color var(--transition), background var(--transition);
}
.nav__links a:hover,
.nav__links a.active { color: var(--text); background: var(--dark3); }

.nav__phone {
  font-family: var(--ff-display);
  font-size: 18px;
  letter-spacing: 1px;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
  transition: color var(--transition);
}
.nav__phone:hover { color: var(--accent-h); }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav__burger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--metal);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Mobile nav ---- */
.nav__mobile {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0; bottom: 0;
  background: rgba(10,12,15,0.97);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-family: var(--ff-display);
  font-size: 36px;
  letter-spacing: 2px;
  color: var(--text-2);
  padding: 8px 24px;
  transition: color var(--transition);
}
.nav__mobile a:hover { color: var(--accent); }
.nav__mobile .mob-phone {
  font-family: var(--ff-display);
  font-size: 28px;
  color: var(--accent);
  margin-top: 24px;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding-top: 64px;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

/* grain overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

.hero__left {
  padding: 60px 40px 60px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
  border-right: 1px solid var(--border);
  position: relative;
  z-index: 1;
}
.hero__tag {
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero__tag::before {
  content: '';
  display: block;
  width: 24px; height: 1px;
  background: var(--accent);
}
.hero__h1 {
  font-family: var(--ff-display);
  font-size: clamp(64px, 7vw, 96px);
  line-height: 0.95;
  letter-spacing: 2px;
  color: var(--text);
  margin-bottom: 28px;
}
.hero__h1 em {
  color: var(--accent);
  font-style: normal;
  display: block;
}
.hero__desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-2);
  max-width: 400px;
  margin-bottom: 40px;
}
.hero__btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero__materials {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-3);
  line-height: 1.8;
}

/* ---- Before/After Panel ---- */
.hero__right {
  position: relative;
  overflow: hidden;
  background: var(--dark2);
}
.ba-wrap {
  display: flex;
  height: 100%;
  width: 100%;
}
.ba-panel {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  overflow: hidden;
}
.ba-panel--before { border-right: 2px solid var(--accent); }
.ba-panel--before .ba-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 40%, #5a2d0c 0%, transparent 55%),
              radial-gradient(ellipse at 70% 65%, #6b3315 0%, transparent 45%),
              radial-gradient(ellipse at 50% 80%, #3d1a06 0%, transparent 40%),
              #1a1208;
  opacity: 0.85;
}
.ba-panel--after .ba-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 40% 50%, #0a1f35 0%, transparent 55%),
              radial-gradient(ellipse at 65% 30%, #0c1c2e 0%, transparent 45%),
              #0d1117;
}
.ba-label {
  position: absolute;
  top: 20px; left: 20px;
  font-size: 10px;
  letter-spacing: 2px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 2px;
  z-index: 2;
  text-transform: uppercase;
}
.ba-label--before {
  background: rgba(200,60,40,0.2);
  color: #ff7060;
  border: 1px solid rgba(200,60,40,0.3);
}
.ba-label--after {
  background: rgba(40,120,200,0.15);
  color: #70b8ff;
  border: 1px solid rgba(40,120,200,0.25);
}
.ba-content {
  position: relative;
  z-index: 2;
}
.ba-icon {
  width: 72px; height: 72px;
  margin-bottom: 16px;
  border-radius: 4px;
}
.ba-surface-name {
  font-family: var(--ff-display);
  font-size: 26px;
  letter-spacing: 2px;
  margin-bottom: 4px;
}
.ba-surface-desc {
  font-size: 12px;
  color: var(--text-2);
}

/* ---- Divider line decoration ---- */
.ba-divider {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 2px;
  z-index: 10;
  pointer-events: none;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.4px;
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--accent-h);
  transform: translateY(-1px);
}
.btn--outline {
  background: transparent;
  color: var(--metal);
  border: 1px solid rgba(184,192,204,0.25);
}
.btn--outline:hover {
  border-color: rgba(184,192,204,0.55);
  background: rgba(184,192,204,0.06);
}
.btn--ghost {
  background: var(--dark3);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn--ghost:hover { background: var(--dark4); color: var(--text); }

/* ============================================
   METRICS BAR
   ============================================ */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border);
}
.metric {
  padding: 36px 40px;
  border-right: 1px solid var(--border);
  position: relative;
}
.metric:last-child { border-right: none; }
.metric__num {
  font-family: var(--ff-display);
  font-size: 52px;
  line-height: 1;
  letter-spacing: 1px;
  color: var(--text);
}
.metric__num em { color: var(--accent); font-style: normal; }
.metric__label {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 6px;
  line-height: 1.5;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================
   SECTION SHARED
   ============================================ */
.section { border-bottom: 1px solid var(--border); }
.section__inner { padding: 80px 0; }
.section__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 48px;
}
.section__title {
  font-family: var(--ff-display);
  font-size: 42px;
  letter-spacing: 2px;
  color: var(--text);
}
.section__link {
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color var(--transition);
}
.section__link:hover { color: var(--accent-h); }
.section__sub {
  font-size: 15px;
  color: var(--text-2);
  max-width: 540px;
  line-height: 1.75;
}

/* ============================================
   SERVICES
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.service-card {
  background: var(--dark2);
  padding: 40px;
  transition: background var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  transform-origin: left;
}
.service-card:hover { background: var(--dark3); }
.service-card:hover::after { transform: scaleX(1); }
.service-card__num {
  font-family: var(--ff-display);
  font-size: 64px;
  color: var(--dark4);
  line-height: 1;
  margin-bottom: 16px;
  user-select: none;
}
.service-card__name {
  font-family: var(--ff-display);
  font-size: 28px;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.service-card__desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 20px;
}
.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag-pill {
  font-size: 11px;
  padding: 4px 10px;
  border: 1px solid var(--border-2);
  border-radius: 20px;
  color: var(--text-3);
  letter-spacing: 0.3px;
}

/* ============================================
   PROCESS
   ============================================ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
}
.process-step {
  padding: 0 32px 0 0;
  position: relative;
}
.process-step::before {
  content: '';
  position: absolute;
  top: 22px;
  left: calc(44px + 16px);
  right: 0;
  height: 1px;
  background: var(--border-2);
}
.process-step:last-child::before { display: none; }
.step-num {
  width: 44px; height: 44px;
  border: 1px solid var(--border-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-display);
  font-size: 18px;
  color: var(--accent);
  margin-bottom: 24px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  background: var(--dark);
}
.step-title {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--text);
}
.step-desc {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.7;
}

/* ============================================
   MATERIALS / OBJECTS
   ============================================ */
.materials-layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 80px;
  align-items: start;
}
.materials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.mat-item {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  cursor: default;
}
.mat-item:hover {
  border-color: var(--border-2);
  color: var(--text);
  background: var(--dark2);
}
.mat-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.cta-box {
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}
.cta-box__title {
  font-family: var(--ff-display);
  font-size: 32px;
  letter-spacing: 1px;
  margin-bottom: 28px;
  line-height: 1.1;
}
.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.contact-row:last-of-type { border-bottom: none; }
.contact-icon-wrap {
  width: 36px; height: 36px;
  background: var(--dark3);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}
.contact-val {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}
.contact-lbl {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 2px;
}
.cta-box .btn--primary {
  width: 100%;
  justify-content: center;
  margin-top: 24px;
}

/* ============================================
   WHY US (advantages)
   ============================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.advantage-card {
  background: var(--dark2);
  padding: 40px;
}
.adv-icon {
  font-size: 32px;
  margin-bottom: 20px;
}
.adv-title {
  font-family: var(--ff-display);
  font-size: 22px;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.adv-desc {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.75;
}

/* ============================================
   GALLERY (works)
   ============================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}
.gallery-item {
  aspect-ratio: 4/3;
  background: var(--dark2);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.gallery-placeholder {
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-3);
  font-size: 13px;
  letter-spacing: 1px;
}
.gallery-placeholder .icon { font-size: 28px; }
.gallery-item:hover .gallery-placeholder { color: var(--text-2); }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(232,76,43,0.0);
  transition: background 0.3s;
  display: flex;
  align-items: flex-end;
  padding: 16px;
}
.gallery-item:hover .gallery-overlay { background: rgba(232,76,43,0.08); }
.gallery-tag {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-3);
  background: var(--dark);
  padding: 4px 10px;
  border-radius: 2px;
}

/* ============================================
   FAQ
   ============================================ */
.faq-list { display: flex; flex-direction: column; gap: 1px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--dark2);
}
.faq-q {
  width: 100%;
  text-align: left;
  padding: 22px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: none;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
  border: none;
  font-family: var(--ff-body);
}
.faq-q:hover { color: var(--accent); background: var(--dark3); }
.faq-q.open { color: var(--accent); }
.faq-chevron {
  font-size: 20px;
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-3);
}
.faq-q.open .faq-chevron { transform: rotate(180deg); color: var(--accent); }
.faq-a {
  display: none;
  padding: 0 28px 22px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
}
.faq-a.open { display: block; }

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
  background: var(--dark2);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: 'ПЕСКОСТРУЙ';
  position: absolute;
  right: -40px; top: 50%;
  transform: translateY(-50%);
  font-family: var(--ff-display);
  font-size: 200px;
  color: rgba(255,255,255,0.025);
  letter-spacing: 8px;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}
.cta-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.cta-banner__title {
  font-family: var(--ff-display);
  font-size: 52px;
  letter-spacing: 2px;
  line-height: 1;
}
.cta-banner__title em { color: var(--accent); font-style: normal; display: block; }
.cta-banner__sub {
  font-size: 14px;
  color: var(--text-2);
  margin-top: 12px;
}
.cta-banner__btns { display: flex; gap: 12px; flex-shrink: 0; }

/* ============================================
   FOOTER
   ============================================ */
footer {
  background: var(--dark);
  border-top: 1px solid var(--border);
}
.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  padding: 60px 0 48px;
  border-bottom: 1px solid var(--border);
}
.footer__logo {
  font-family: var(--ff-display);
  font-size: 22px;
  letter-spacing: 3px;
  color: var(--metal);
  margin-bottom: 16px;
}
.footer__logo span { color: var(--accent); }
.footer__about {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.75;
  max-width: 280px;
}
.footer__col-title {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 20px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col a {
  font-size: 14px;
  color: var(--text-2);
  transition: color var(--transition);
}
.footer__col a:hover { color: var(--text); }
.footer__col p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}
.footer__col .foot-phone {
  font-family: var(--ff-display);
  font-size: 22px;
  letter-spacing: 1px;
  color: var(--accent);
  display: block;
  margin-bottom: 8px;
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 12px;
  color: var(--text-3);
}

/* ============================================
   INNER PAGE HERO
   ============================================ */
.page-hero {
  padding-top: 64px;
  border-bottom: 1px solid var(--border);
  background: var(--dark2);
}
.page-hero__inner {
  padding: 60px 0 56px;
}
.page-hero__tag {
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 16px;
}
.page-hero__h1 {
  font-family: var(--ff-display);
  font-size: clamp(48px, 5vw, 72px);
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.page-hero__desc {
  font-size: 15px;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.75;
}

/* ============================================
   PRICES
   ============================================ */
.prices-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
}
.prices-table th {
  text-align: left;
  padding: 16px 24px;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-3);
  background: var(--dark2);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}
.prices-table td {
  padding: 18px 24px;
  font-size: 14px;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.prices-table td:last-child {
  font-family: var(--ff-display);
  font-size: 18px;
  color: var(--text);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.prices-table tr:last-child td { border-bottom: none; }
.prices-table tr:hover td { background: var(--dark2); }
.price-note {
  font-size: 13px;
  color: var(--text-3);
  margin-top: 20px;
  line-height: 1.7;
  padding: 20px 24px;
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 8px;
}
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: var(--dark2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-family: var(--ff-body);
  font-size: 15px;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-3); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235C6270' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; }
.form-note { font-size: 12px; color: var(--text-3); margin-top: 8px; }
.form-success {
  display: none;
  padding: 16px 20px;
  background: rgba(40,180,100,0.1);
  border: 1px solid rgba(40,180,100,0.2);
  border-radius: var(--radius);
  font-size: 14px;
  color: #4ddb88;
  margin-top: 16px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero__right { height: 360px; }
  .hero__left { border-right: none; border-bottom: 1px solid var(--border); }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(2) { border-right: none; }
  .services-grid { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-step::before { display: none; }
  .advantages-grid { grid-template-columns: 1fr 1fr; }
  .materials-layout { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .cta-banner__inner { flex-direction: column; text-align: center; }
}

/* ============ TABLET ============ */
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .nav__links { display: none; }
  .nav__phone { display: none; }
  .nav__burger { display: flex; }

  /* Hero */
  .hero { grid-template-columns: 1fr; }
  .hero__left { padding: 32px 16px 28px; border-right: none; border-bottom: 1px solid var(--border); }
  .hero__h1 { font-size: 52px; }
  .hero__desc { font-size: 14px; }
  .hero__btns { flex-direction: column; gap: 10px; }
  .hero__btns .btn { width: 100%; justify-content: center; }
  .hero__right { height: 280px; }
  .hero__materials { font-size: 10px; margin-top: 24px; }

  /* Metrics */
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metric { padding: 20px 16px; border-right: 1px solid var(--border); }
  .metric:nth-child(2n) { border-right: none; }
  .metric__num { font-size: 36px; }
  .metric__label { font-size: 11px; }

  /* Sections */
  .section__inner { padding: 40px 0; }
  .section__title { font-size: 28px; }
  .section__header { flex-direction: column; gap: 8px; margin-bottom: 28px; }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }
  .service-card { padding: 28px 20px; }
  .service-card__num { font-size: 48px; }
  .service-card__name { font-size: 22px; }

  /* Process */
  .process-steps { grid-template-columns: 1fr; gap: 32px; }
  .process-step::before { display: none; }

  /* Materials */
  .materials-layout { grid-template-columns: 1fr; gap: 32px; }
  .materials-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-box { padding: 24px 20px; }

  /* Advantages */
  .advantages-grid { grid-template-columns: 1fr; }
  .advantage-card { padding: 28px 20px; }

  /* Gallery */
  .gallery-grid { grid-template-columns: 1fr; }

  /* FAQ */
  .faq-q { padding: 18px 20px; font-size: 14px; }
  .faq-a { padding: 0 20px 18px; }

  /* CTA Banner */
  .cta-banner { padding: 48px 0; }
  .cta-banner__inner { flex-direction: column; text-align: center; }
  .cta-banner__title { font-size: 36px; }
  .cta-banner__btns { flex-direction: column; width: 100%; }
  .cta-banner__btns .btn { width: 100%; justify-content: center; }

  /* Footer */
  .footer__top { grid-template-columns: 1fr; gap: 28px; }
  .footer__bottom { flex-direction: column; gap: 8px; text-align: center; font-size: 11px; }

  /* Contact */
  .contact-layout { grid-template-columns: 1fr; }

  /* Page hero */
  .page-hero__h1 { font-size: 40px; }

  /* Prices table */
  .prices-table th:nth-child(2),
  .prices-table td:nth-child(2) { display: none; }
  .prices-table { font-size: 13px; }
  .prices-table th, .prices-table td { padding: 12px 14px; }
}

/* ============ MOBILE ============ */
@media (max-width: 480px) {
  .hero__h1 { font-size: 44px; }
  .hero__right { height: 240px; }
  .slide-caption-title { font-size: 14px; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metric__num { font-size: 32px; }
  .section__title { font-size: 26px; }
  .materials-grid { grid-template-columns: 1fr 1fr; }
  .cta-banner__title { font-size: 30px; }
  .nav__logo { font-size: 16px; }
}