/* ===== Base ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --accent: #f59e0b;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --text: #334155;
  --muted: #64748b;
  --bg: #ffffff;
  --bg-alt: #f1f5f9;
  --border: #e2e8f0;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.14);
  --container: 1160px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.container--narrow {
  max-width: 720px;
}

.section {
  padding: 80px 0;
}

.section--alt {
  background: var(--bg-alt);
}

.section__title {
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--dark);
  text-align: center;
  margin-bottom: 12px;
}

.section__subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 48px;
}

.section__center {
  text-align: center;
  margin-top: 48px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  font-family: inherit;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn--outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn--outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn--outline-dark {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

.btn--outline-dark:hover {
  background: #fff;
  color: var(--dark);
}

.btn--light {
  background: #fff;
  color: var(--primary);
}

.btn--light:hover {
  background: var(--bg-alt);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn--sm {
  padding: 10px 18px;
  font-size: 0.9rem;
}

.btn--full {
  width: 100%;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--dark);
}

.logo__icon {
  font-size: 1.6rem;
}

/* ===== Иконки Lucide ===== */
[data-lucide] {
  display: inline-block;
  vertical-align: middle;
  stroke-width: 2;
  flex-shrink: 0;
}

.logo__icon svg {
  width: 1.6rem;
  height: 1.6rem;
}

.card__icon svg,
.service-card__icon svg,
.contact-card__icon svg {
  width: 2rem;
  height: 2rem;
}

.hero__card-icon svg {
  width: 4rem;
  height: 4rem;
}

.form__success-icon svg {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--success);
}

.catalog-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.catalog-title svg {
  width: 1.6rem;
  height: 1.6rem;
  color: var(--primary);
}

.hero__badge svg {
  width: 1rem;
  height: 1rem;
  vertical-align: -0.15em;
}

.btn svg {
  width: 1.2rem;
  height: 1.2rem;
}

.nav {
  display: flex;
  gap: 28px;
}

.nav__link {
  color: var(--text);
  font-weight: 500;
  padding: 6px 0;
  position: relative;
  transition: color 0.2s;
}

.nav__link:hover {
  color: var(--primary);
}

.nav__link--active {
  color: var(--primary);
}

.nav__link--active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.burger span {
  width: 26px;
  height: 3px;
  background: var(--dark);
  border-radius: 3px;
  transition: all 0.3s;
}

.burger--active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.burger--active span:nth-child(2) {
  opacity: 0;
}

.burger--active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 60%, #2563eb 100%);
  color: #fff;
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.hero__badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 6px 14px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
  max-width: 560px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero__stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.stat__value {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
}

.stat__label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.hero__image {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero__card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  padding: 40px 36px;
  text-align: center;
  max-width: 320px;
}

.hero__card-icon {
  font-size: 4rem;
  display: block;
  margin-bottom: 16px;
}

.hero__card p {
  font-weight: 600;
  font-size: 1.1rem;
}

/* ===== Cards ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.card__icon {
  font-size: 2.2rem;
  display: block;
  margin-bottom: 14px;
}

.card__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.card__text {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ===== Service cards ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform 0.2s, box-shadow 0.2s;
  display: block;
  color: var(--text);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.service-card__icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 12px;
}

.service-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.service-card__text {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 14px;
}

.service-card__link {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ===== Steps ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  position: relative;
}

.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.step p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* ===== CTA ===== */
.cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 60px 0;
}

.cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.cta__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 8px;
}

.cta__text {
  color: rgba(255, 255, 255, 0.9);
}

.cta__contacts {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== Contacts ===== */
.contacts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.contact-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  text-align: center;
}

.contact-card__icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 12px;
}

.contact-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.contact-card p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: #cbd5e1;
  padding: 50px 0 20px;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer .logo__text {
  color: #fff;
}

.footer__text {
  margin-top: 12px;
  font-size: 0.9rem;
  max-width: 320px;
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__nav a {
  color: #cbd5e1;
  transition: color 0.2s;
}

.footer__nav a:hover {
  color: #fff;
}

.footer__bottom {
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: #94a3b8;
}

/* ===== Page hero ===== */
.page-hero {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
  color: #fff;
  padding: 70px 0;
  text-align: center;
}

.page-hero__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.page-hero__subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto;
}

/* ===== Catalog (services list) ===== */
.catalog-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
  margin: 56px 0 24px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.catalog-title:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.service-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: 10px;
  padding: 20px 22px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.service-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.service-item__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}

.service-item__text {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 10px;
}

.service-item__price {
  display: inline-block;
  background: var(--bg-alt);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 4px 12px;
  border-radius: 6px;
}

.price-note {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 30px;
}

.price-note--left {
  text-align: left;
  margin: 0 0 16px;
  font-style: italic;
}

/* ===== Form ===== */
.form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.form__group {
  margin-bottom: 22px;
}

.form__label {
  display: block;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.form__input.is-invalid,
.form__select.is-invalid {
  border-color: var(--danger);
}

.form__textarea {
  resize: vertical;
  min-height: 100px;
}

.form__radio,
.form__check {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 8px 0;
  font-size: 0.95rem;
}

.form__radio input,
.form__check input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

.form__error {
  display: block;
  color: var(--danger);
  font-size: 0.82rem;
  margin-top: 6px;
  min-height: 16px;
}

.is-hidden {
  display: none !important;
}

/* ===== Legal pages (согласие и т.п.) ===== */
.legal {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.legal p {
  color: var(--text);
  margin-bottom: 16px;
  font-size: 0.98rem;
}

.legal h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin: 24px 0 10px;
}

.legal ul {
  margin: 0 0 16px 20px;
  color: var(--text);
  font-size: 0.98rem;
}

.legal li {
  margin-bottom: 6px;
}

.legal__footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .legal {
    padding: 24px 18px;
  }
}

.form__success {
  margin-top: 24px;
  text-align: center;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 12px;
  padding: 32px;
}

.form__success-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 12px;
}

.form__success h3 {
  color: var(--dark);
  margin-bottom: 8px;
}

.form__success p {
  color: var(--muted);
}

.form__note {
  text-align: center;
  margin-top: 28px;
  color: var(--muted);
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .cards,
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .contacts {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__image {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: center;
    padding: 30px 20px;
    gap: 24px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid var(--border);
  }

  .nav--open {
    transform: translateY(0);
  }

  .burger {
    display: flex;
  }

  .header__cta {
    display: none;
  }

  .cards,
  .services-grid,
  .steps,
  .contacts,
  .service-list {
    grid-template-columns: 1fr;
  }

  .hero__stats {
    gap: 24px;
  }

  .form {
    padding: 28px 20px;
  }

  .cta__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}