:root {
  --bg: #0d0f14;
  --bg-soft: #11151d;
  --card: rgba(245, 247, 255, 0.08);
  --card-strong: rgba(245, 247, 255, 0.12);
  --text: #e7ecf5;
  --text-strong: #0f1115;
  --muted: #a6b1c3;
  --gradient: linear-gradient(120deg, #3bf4d4, #5b8df7, #a855f7);
  --accent: #5b8df7;
  --shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Space Grotesk', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

p,
li {
  word-break: normal;
  hyphens: none;
}

.bg-texture {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(91, 141, 247, 0.25), transparent 40%),
              radial-gradient(circle at 80% 10%, rgba(59, 244, 212, 0.18), transparent 45%),
              radial-gradient(circle at 50% 80%, rgba(168, 85, 247, 0.15), transparent 45%),
              linear-gradient(180deg, rgba(0, 0, 0, 0.25), rgba(0, 0, 0, 0)),
              linear-gradient(135deg, rgba(255, 255, 255, 0.02) 25%, transparent 25%),
              linear-gradient(225deg, rgba(255, 255, 255, 0.02) 25%, transparent 25%),
              linear-gradient(45deg, rgba(255, 255, 255, 0.02) 25%, transparent 25%),
              linear-gradient(315deg, rgba(255, 255, 255, 0.02) 25%, var(--bg) 25%),
              repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.012) 0, rgba(255, 255, 255, 0.012) 2px, transparent 2px, transparent 4px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 8px 8px, 8px 8px, 8px 8px, 8px 8px, 160px 160px;
  opacity: 0.7;
  pointer-events: none;
  z-index: 0;
  filter: saturate(1.1);
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(13, 15, 20, 0.7);
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 18px 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  min-height: 72px;
}

.logo {
  font-size: 28px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  color: transparent;
  letter-spacing: 0.6px;
  text-decoration: none;
  display: inline-block;
}

.nav {
  display: flex;
  gap: 18px;
  justify-content: flex-end;
}

.nav a {
  color: #d9e4ff;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 12px;
  transition: color 0.3s ease, background 0.3s ease, transform 0.3s ease;
  position: relative;
  overflow: hidden;
}

.nav a:hover {
  color: #0f1115;
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(91, 141, 247, 0.28);
}

.nav a::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: -1;
}

.nav a:hover::after {
  opacity: 1;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-direction: column;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
  order: 3;
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: #e6edff;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.lang-toggle {
  display: inline-flex;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  padding: 6px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  order: 4;
}

.lang-btn {
  border: none;
  background: transparent;
  color: #d9e4ff;
  padding: 6px 10px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
  min-height: 36px;
  font-size: 13px;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

.lang-btn.active {
  background: var(--gradient);
  color: #0f1115;
  box-shadow: 0 10px 24px rgba(91, 141, 247, 0.35);
}

main {
  position: relative;
  z-index: 1;
  padding: 52px 48px 100px;
  max-width: 1200px;
  margin: 0 auto;
}

.section {
  margin-top: 96px;
  scroll-margin-top: 90px;
  content-visibility: auto;
  contain-intrinsic-size: 820px;
}

.section__header {
  max-width: 780px;
}

.section__header h2 {
  margin: 0 0 8px;
  font-size: 32px;
}

.section__header p {
  margin: 0;
  color: var(--muted);
}

.hero {
  display: grid;
  grid-template-columns: minmax(320px, 1.05fr) minmax(320px, 0.95fr);
  gap: 42px;
  align-items: center;
  padding: 56px 0 72px;
}

.hero__content {
  max-width: 520px;
  transform: translateX(-8px);
}

.hero__content h1 {
  font-size: clamp(32px, 4vw, 48px);
  margin: 12px 0 12px;
  line-height: 1.1;
}

.hero__sub {
  color: var(--muted);
  margin: 0 0 24px;
  text-indent: 1.5em;
  font-style: italic;
  max-width: 640px;
}

.hero__tag {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 999px;
  color: #d3def0;
  font-size: 14px;
  letter-spacing: 0.2px;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  outline: none;
  cursor: pointer;
  padding: 12px 18px;
  min-height: 48px;
  border-radius: 14px;
  font-weight: 700;
  letter-spacing: 0.2px;
  transition: transform 0.2s ease, box-shadow 0.3s ease, background 0.3s ease;
  text-decoration: none;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-gradient {
  background-image: var(--gradient);
  color: #0f1115;
  box-shadow: 0 12px 30px rgba(91, 141, 247, 0.25);
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(59, 244, 212, 0.2);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.hero__visual {
  position: relative;
  min-height: 380px;
  background: radial-gradient(circle at 30% 30%, rgba(59, 244, 212, 0.12), transparent 55%),
              radial-gradient(circle at 70% 70%, rgba(168, 85, 247, 0.1), transparent 60%),
              var(--card);
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.03);
  transform: translateY(14px) scale(1.03);
}

.hero__visual picture {
  position: absolute;
  inset: 0;
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 20px;
  z-index: 3;
  mix-blend-mode: normal;
  filter: drop-shadow(0 14px 28px rgba(0, 0, 0, 0.45))
          drop-shadow(0 0 22px rgba(59, 244, 212, 0.2))
          drop-shadow(0 0 26px rgba(168, 85, 247, 0.22));
  box-shadow: inset 0 0 28px rgba(91, 141, 247, 0.16);
  animation: hero-parallax 12s ease-in-out infinite alternate;
}

.hero__visual::before,
.hero__visual::after {
  content: '';
  position: absolute;
  inset: 10%;
  border-radius: 24px;
  background: radial-gradient(circle at 30% 30%, rgba(59, 244, 212, 0.18), transparent 55%),
              radial-gradient(circle at 70% 70%, rgba(168, 85, 247, 0.14), transparent 60%);
  filter: blur(14px);
  animation: glow-shift 18s ease-in-out infinite;
  z-index: 1;
}

.hero__visual::after {
  inset: 4%;
  background: linear-gradient(120deg, rgba(91, 141, 247, 0.16), rgba(168, 85, 247, 0.12), rgba(59, 244, 212, 0.18));
  opacity: 0.5;
  animation: glow-shift-2 20s ease-in-out infinite;
}

.grid-lines,
.floating-nodes {
  position: absolute;
  inset: 0;
}

.grid-lines {
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.08), transparent 50%),
              linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
              linear-gradient(0deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px, 40px 40px;
  filter: blur(0.2px);
  animation: slow-pan 26s linear infinite;
  z-index: 2;
}

.floating-nodes::before,
.floating-nodes::after {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle at 30% 30%, rgba(59, 244, 212, 0.4), transparent 60%);
  filter: blur(30px);
  animation: pulse 10s ease-in-out infinite;
}

.floating-nodes::after {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle at 70% 70%, rgba(168, 85, 247, 0.35), transparent 65%);
  animation-duration: 14s;
}

.floating-nodes {
  animation: drift 18s ease-in-out infinite;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(4px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(91, 141, 247, 0.5);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.4);
}

.card h3 {
  margin: 8px 0 12px;
}

.card p,
.card li {
  color: var(--muted);
  margin: 0;
}

.card ul {
  padding-left: 18px;
  margin: 0;
  display: grid;
  gap: 6px;
}

.icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.icon::before,
.icon::after {
  content: '';
  position: absolute;
  border-radius: 50%;
}

.icon-model::before {
  width: 22px;
  height: 22px;
  border: 2px solid #3bf4d4;
  transform: rotate(45deg);
}

.icon-model::after {
  width: 8px;
  height: 8px;
  background: #a855f7;
  top: 8px;
  left: 8px;
}

.icon-print::before {
  width: 24px;
  height: 14px;
  border: 2px solid #5b8df7;
  border-bottom: 6px solid #5b8df7;
  border-radius: 4px;
}

.icon-print::after {
  width: 10px;
  height: 10px;
  background: #3bf4d4;
  bottom: 4px;
  right: 6px;
  border-radius: 2px;
}

.icon-scan::before {
  width: 26px;
  height: 26px;
  border: 2px dashed #3bf4d4;
  border-radius: 50%;
  animation: spin 12s linear infinite;
}

.icon-scan::after {
  width: 10px;
  height: 10px;
  background: #a855f7;
}

.icon-material::before {
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, #3bf4d4, #5b8df7);
  clip-path: polygon(50% 0%, 100% 35%, 100% 75%, 50% 100%, 0% 75%, 0% 35%);
}

.icon-cad::before {
  width: 24px;
  height: 16px;
  border: 2px solid #5b8df7;
  border-radius: 3px;
  box-shadow: inset 0 0 0 2px rgba(168, 85, 247, 0.7);
}

.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.step {
  padding: 16px 18px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.07);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.step:hover {
  transform: translateY(-4px);
  border-color: rgba(91, 141, 247, 0.45);
}

.step__number {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(91, 141, 247, 0.18);
  color: #d9e6ff;
  font-weight: 700;
  margin-bottom: 8px;
}

.step h4 {
  margin: 6px 0 8px;
  line-height: 1.3;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-style: italic;
  line-height: 1.55;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.project-card {
  padding: 16px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.project-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: rgba(91, 141, 247, 0.4);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.45);
}

.project-card h3 {
  margin: 6px 0 8px;
}

.project-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.project-thumb {
  width: 100%;
  height: 220px;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid rgba(91, 141, 247, 0.4);
  margin-bottom: 14px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.project-card:hover .project-thumb {
  transform: scale(1.02);
  border-color: rgba(168, 85, 247, 0.6);
}

.about {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 16px;
}

.about__block {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.07);
  padding: 18px;
  box-shadow: var(--shadow);
}

.about__block p {
  margin: 10px 0;
  color: var(--muted);
}

.about-title {
  font-style: italic;
}

.equipment__cards {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.benefit {
  background: var(--card-strong);
  border-radius: var(--radius);
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.benefit:hover {
  transform: translateY(-4px);
  border-color: rgba(91, 141, 247, 0.5);
}

.contacts {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-top: 20px;
}

.contact-form {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
}

.contact-form label {
  display: block;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-top: 6px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: #f2f4f8;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(91, 141, 247, 0.8);
  box-shadow: 0 0 0 3px rgba(91, 141, 247, 0.2);
}

.contact-form input.error,
.contact-form textarea.error {
  border-color: rgba(255, 99, 132, 0.7);
  box-shadow: 0 0 0 3px rgba(255, 99, 132, 0.2);
}

.form-errors {
  min-height: 18px;
  color: #ff99b2;
  font-size: 13px;
}

.form-status {
  min-height: 18px;
  color: #9ee0ff;
  font-size: 13px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.form-checkboxes {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.checkbox input {
  accent-color: #5b8df7;
  margin-right: 6px;
}

.choice-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.2s ease;
  min-height: 44px;
}

.choice-chip:hover {
  border-color: rgba(91, 141, 247, 0.6);
  transform: translateY(-1px);
}

.choice-chip input {
  accent-color: #5b8df7;
  margin: 0;
  width: 20px;
  height: 20px;
}

.choice-chip span {
  color: #e7ecf5;
  font-weight: 600;
}

.contact-info {
  background: var(--card-strong);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px;
  color: var(--text);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.contact-info::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(59, 244, 212, 0.14), rgba(168, 85, 247, 0.14));
  opacity: 0.4;
  filter: blur(22px);
  z-index: 0;
}

.contact-info a {
  color: #d8e4ff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.contact-info a:hover {
  text-decoration: underline;
}

.contact-info h3 {
  margin: 0 0 8px 0;
  background: var(--gradient);
  -webkit-background-clip: text;
  color: transparent;
  letter-spacing: 0.4px;
  position: relative;
  z-index: 1;
}

.contact-info p {
  margin: 6px 0;
  position: relative;
  z-index: 1;
}

.contact-info span {
  position: relative;
  z-index: 1;
}

.contact-info .contact-name {
  font-style: italic;
}

.contact-info .label-phone {
  color: #4ade80;
}

.contact-info .label-tg {
  color: #5b8df7;
}

.contact-info .label-wa {
  color: #25d366;
}

.contact-info .label-avito {
  color: #a855f7;
}

.contact-info .label-city {
  color: #ffffff;
  font-weight: 700;
}


.contact-info .label-hours,
.contact-info .hours-value {
  color: #ffffff;
  font-weight: 700;
}


.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #11151d;
  color: #f4f7ff;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 20;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* JS responsive states */
body.mobile .header {
  display: flex;
  align-items: center;
  padding: 8px;
  gap: 8px;
  min-height: 60px;
}

body.mobile .logo {
  font-size: 23px;
}

body.mobile .lang-toggle {
  order: 4;
  padding: 2px 4px;
  gap: 3px;
}

body.mobile .menu-toggle {
  display: inline-flex;
  width: 36px;
  height: 36px;
  order: 3;
  margin-left: auto;
}

body.mobile .lang-btn {
  font-size: 11.5px;
  padding: 4px 7px;
}

body.mobile .nav {
  display: none;
  position: fixed;
  inset: 70px 12px auto 12px;
  background: rgba(13, 15, 20, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 12px;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

body.mobile .nav.open {
  display: flex;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

body.mobile .nav a {
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

body.mobile main {
  padding: 14px 12px 52px;
}

body.mobile .hero {
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 18px 0 26px;
}

body.mobile .hero__visual {
  min-height: 260px;
  background: var(--card-strong);
  transform: none;
}

body.mobile .hero__image {
  border-radius: 18px;
}

body.mobile .bg-texture {
  opacity: 0.35;
}

body.mobile .hero__sub {
  text-indent: 0;
  margin-bottom: 16px;
  font-size: 14.5px;
  line-height: 1.45;
}

body.mobile .hero__tag {
  font-size: 12px;
  padding: 5px 9px;
  margin-bottom: 8px;
}

body.mobile .hero__content h1 {
  font-size: 24px;
  line-height: 1.1;
  margin: 10px 0 8px;
}

body.mobile .hero__actions {
  gap: 10px;
}

body.mobile .grid-lines,
body.mobile .floating-nodes {
  opacity: 0.35;
  animation: none;
  filter: blur(2px);
}

body.mobile .hero__sub,
body.mobile .section__header p,
body.mobile .card p,
body.mobile .card li {
  font-size: 15px;
  line-height: 1.5;
}

body.mobile h1 {
  font-size: 25px;
  line-height: 1.12;
}

body.mobile .section__header h2 {
  font-size: 22px;
}

body.mobile .cards,
body.mobile .projects-grid,
body.mobile .benefits,
body.mobile .equipment__cards {
  grid-template-columns: 1fr;
}

body.mobile .contacts {
  grid-template-columns: 1fr;
}

body.mobile .contact-info {
  margin-top: 8px;
}

body.mobile .btn {
  width: 100%;
  justify-content: center;
}

body.mobile .contact-form input,
body.mobile .contact-form textarea {
  font-size: 15px;
}

body.mobile .card,
body.mobile .project-card,
body.mobile .step,
body.mobile .about__block,
body.mobile .benefit {
  border-radius: 14px;
}

body.tablet .header {
  display: flex;
  align-items: center;
  padding: 12px 18px;
  gap: 12px;
}

body.tablet .hero {
  grid-template-columns: 1fr 0.95fr;
  gap: 24px;
  padding: 54px 0 68px;
}


body.tablet .contacts {
  grid-template-columns: 3fr 2fr;
}

body.tablet main {
  padding: 48px 26px 80px;
}

body.tablet .hero__visual {
  transform: translateY(8px) scale(1.01);
  min-height: 360px;
}

body.tablet .menu-toggle {
  display: inline-flex;
  order: 3;
  margin-left: auto;
}

body.tablet .lang-toggle {
  order: 4;
}

body.tablet .nav {
  display: none;
  position: fixed;
  inset: 70px 16px auto 16px;
  background: rgba(13, 15, 20, 0.94);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 12px;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 9;
}

body.tablet .nav.open {
  display: flex;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

body.tablet .nav a {
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

body.tablet .header-cta {
  font-size: 13px;
  padding: 10px 12px;
  min-height: 44px;
}

body.tablet .lang-toggle {
  padding: 4px 6px;
  gap: 6px;
}
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes glow-shift {
  0%, 100% { transform: scale(1); opacity: 0.75; }
  50% { transform: scale(1.08); opacity: 1; }
}

@keyframes glow-shift-2 {
  0%, 100% { transform: rotate(0deg) scale(1); opacity: 0.45; }
  50% { transform: rotate(4deg) scale(1.06); opacity: 0.6; }
}

@keyframes slow-pan {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-40px, -40px, 0); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes sweep {
  0% { transform: translateX(-60%); opacity: 0.5; }
  50% { transform: translateX(40%); opacity: 0.8; }
  100% { transform: translateX(120%); opacity: 0.4; }
}

@keyframes hero-parallax {
  0% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(4px, 2px, 0); }
  100% { transform: translate3d(-3px, 3px, 0); }
}

@keyframes drift {
  0% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(6px, 4px, 0); }
  100% { transform: translate3d(-4px, -3px, 0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  .hero__image,
  .hero__visual::before,
  .hero__visual::after,
  .grid-lines,
  .floating-nodes,
  .floating-nodes::before,
  .floating-nodes::after {
    animation: none !important;
  }
}

@media (max-width: 900px) {
  .btn {
    min-height: 44px;
    padding: 10px 14px;
  }
  .header {
    padding: 12px 14px;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: 10px;
  }
  main {
    padding: 48px 18px 80px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 48px 0 56px;
  }
  .hero__content {
    transform: none;
  }
  .hero__visual {
    min-height: 320px;
    transform: none;
    box-shadow: var(--shadow);
  }
  .contacts {
    grid-template-columns: 1fr;
  }
  .nav {
    gap: 12px;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .section {
    margin-top: 72px;
  }
}