/* ==========================================================================
   Спецтехника — техцентр, Тверь
   Standalone: HTML + CSS + JS
   ========================================================================== */

:root {
  --color-bg: #0a0b0d;
  --color-bg-2: #111318;
  --color-bg-3: #1a1d24;
  --color-bg-4: #252932;
  --color-border: rgba(255, 255, 255, 0.1);
  --color-text: #e8eaed;
  --gold: #d4a853;
  --color-text-muted: #9aa0ad;
  --color-text-dim: #6b7280;
  --color-accent: #f5a623;
  --color-accent-hover: #e67e22;
  --color-accent-glow: rgba(245, 166, 35, 0.25);
  --font: "Manrope", system-ui, -apple-system, sans-serif;
  --container: 1200px;
  --header-h: 72px;
  --radius: 14px;
  --radius-lg: 18px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.35);
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

::selection {
  background: rgba(245, 166, 35, 0.35);
  color: #fff;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.text-accent {
  color: var(--color-accent);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg);
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 8px 28px var(--color-accent-glow);
  transform: translateY(-2px);
}

.btn--outline {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
}

.btn--outline:hover {
  border-color: rgba(245, 166, 35, 0.5);
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  border-color: rgba(245, 166, 35, 0.5);
  color: var(--color-accent);
}

.btn--sm {
  padding: 10px 18px;
  font-size: 12px;
}

.btn--lg {
  padding: 16px 32px;
  font-size: 14px;
}

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

/* ==========================================================================
   Icon box
   ========================================================================== */

.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(245, 166, 35, 0.12);
  color: var(--color-accent);
  flex-shrink: 0;
  transition: background var(--transition), color var(--transition);
}

.icon-box--lg {
  width: 52px;
  height: 52px;
  border-radius: 14px;
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.header.is-scrolled {
  background: rgba(10, 11, 13, 0.92);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 16px;
}
.logo__image {
  width: 50px;
  height: 50px;
  object-fit: contain;
  display: block;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--color-accent);
  color: var(--color-bg);
  transition: transform var(--transition);
}

.logo:hover .logo__icon {
  transform: scale(1.05);
}

.logo__name {
  display: block;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.1;
  color: #fff;
}

.logo__city {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-dim);
}

.nav {
  display: none;
  align-items: center;
  gap: 4px;
}

.nav__link {
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.nav__link:hover {
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.05);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header__phone {
  display: none;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  transition: color var(--transition);
}

.header__phone:hover {
  color: var(--color-accent);
}

.header__call {
  display: none;
}

.burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  cursor: pointer;
}

.burger__line {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.burger.is-active .burger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.burger.is-active .burger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  padding: 24px 20px;
  background: rgba(10, 11, 13, 0.98);
  backdrop-filter: blur(20px);
  overflow-y: auto;
}

.mobile-menu[hidden] {
  display: none;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu__link {
  display: block;
  padding: 14px 12px;
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: 10px;
  transition: background var(--transition), color var(--transition);
}

.mobile-menu__link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-accent);
}

.mobile-menu__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 48px) 0 100px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: var(--hero-img) center / cover no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 11, 13, 0.82) 0%, rgba(10, 11, 13, 0.72) 50%, var(--color-bg) 100%),
    radial-gradient(ellipse 80% 60% at 100% 0%, rgba(245, 166, 35, 0.12), transparent 55%);
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  padding: 8px 16px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(245, 166, 35, 0.1);
  border: 1px solid rgba(245, 166, 35, 0.3);
  border-radius: 100px;
}

.hero__title {
  max-width: 820px;
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: #fff;
}

.hero__subtitle {
  max-width: 620px;
  margin-top: 20px;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  line-height: 1.65;
  color: #c5c9d2;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero__perks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 48px;
}

.hero__perk {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.hero__perk:hover {
  border-color: rgba(245, 166, 35, 0.35);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.hero__perk:hover .icon-box {
  background: var(--color-accent);
  color: var(--color-bg);
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 24px;
  height: 40px;
  border: 1px solid rgba(212, 168, 83, 0.3);
  border-radius: 12px;
  opacity: 0.6;
  transition: opacity 0.3s;
}

.hero-scroll:hover {
  opacity: 1;
}

.hero-scroll span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  background: var(--gold);
  border-radius: 2px;
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollDot {
  0%, 100% { transform: translateY(0); opacity: 1; }
  60% { transform: translateY(12px); opacity: 0.2; }
}

/* ==========================================================================
   Sections common
   ========================================================================== */

.section {
  padding: 88px 0;
  position: relative;
}

.section--dark {
  background: var(--color-bg-2);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.section--about::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--about-img) center / cover no-repeat;
  opacity: 0.06;
  pointer-events: none;
}

.section__head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section__eyebrow {
  margin-bottom: 12px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.section__title--left {
  text-align: left;
}

.section__subtitle {
  margin-top: 16px;
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   Reveal animation
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ==========================================================================
   About
   ========================================================================== */

.about__intro {
  max-width: 760px;
  margin: 0 auto 48px;
  padding: 32px 36px;
  text-align: center;
}

.about__intro p {
  font-size: 1.05rem;
  line-height: 1.75;
  color: #c5c9d2;
}

.cards-grid {
  display: grid;
  gap: 20px;
}

.cards-grid--4 {
  grid-template-columns: 1fr;
}

.info-card {
  padding: 28px;
  background: var(--color-bg-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.info-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 166, 35, 0.3);
  box-shadow: var(--shadow);
}

.info-card:hover .icon-box {
  background: var(--color-accent);
  color: var(--color-bg);
}

.info-card__title {
  margin-top: 18px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.info-card__text {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Services
   ========================================================================== */

.service-card {
  position: relative;
  padding: 28px;
  background: rgba(26, 29, 36, 0.9);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.service-card::before {
  content: "";
  position: absolute;
  top: -24px;
  right: -24px;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: rgba(245, 166, 35, 0.06);
  transition: transform 0.5s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 166, 35, 0.4);
  box-shadow: var(--shadow);
}

.service-card:hover::before {
  transform: scale(1.8);
}

.service-card:hover .icon-box {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}

.service-card .icon-box {
  border: 1px solid rgba(245, 166, 35, 0.2);
}

.service-card__title {
  position: relative;
  margin-top: 18px;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.service-card__text {
  position: relative;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Advantages
   ========================================================================== */

.section--advantages {
  background:
    radial-gradient(ellipse 60% 50% at 0% 50%, rgba(245, 166, 35, 0.08), transparent 60%),
    var(--color-bg);
  overflow: hidden;
}

.advantages__layout {
  display: grid;
  gap: 40px;
  align-items: start;
}

.advantages__lead {
  margin-top: 16px;
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.advantages__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.advantages__list {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.advantages__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  font-size: 14px;
  font-weight: 500;
  color: #d1d5db;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition), background var(--transition);
}

.advantages__item:hover {
  border-color: rgba(245, 166, 35, 0.35);
  background: rgba(255, 255, 255, 0.07);
}

.advantages__check {
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 1px;
}

/* ==========================================================================
   Steps
   ========================================================================== */

.steps {
  display: grid;
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step__num {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  font-family: ui-monospace, monospace;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-accent);
  background: rgba(245, 166, 35, 0.1);
  border: 1px solid rgba(245, 166, 35, 0.3);
  border-radius: var(--radius-lg);
}

.step__body {
  flex: 1;
  padding: 24px 28px;
}

.step__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
}

.step__text {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Contacts
   ========================================================================== */

.contacts__grid {
  display: grid;
  gap: 24px;
}

.contacts__info {
  padding: 32px;
}

.contact-row {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-row:last-of-type {
  margin-bottom: 0;
}

.contact-row__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.contact-row__value {
  display: block;
  margin-top: 4px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  transition: color var(--transition);
}

a.contact-row__value:hover {
  color: var(--color-accent);
}

.contacts__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.contacts__map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  min-height: 300px;
}

.contacts__map iframe {
  width: 100%;
  height: 100%;
  min-height: 320px;
  border: 0;
}
.contact-phones {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  padding: 36px 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 480px;
}

.footer__icon {
  flex-shrink: 0;
}

.footer__brand p {
  font-size: 14px;
  color: var(--color-text-muted);
  text-align: left;
}

.footer__brand strong {
  color: #d1d5db;
}

.footer__copy {
  font-size: 12px;
  color: var(--color-text-dim);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (min-width: 480px) {
  .hero__perks {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 640px) {
  .cards-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }

  .header__phone {
    display: block;
  }

  .header__call {
    display: inline-flex;
  }

  .burger {
    display: none;
  }

  .hero__perks {
    grid-template-columns: repeat(4, 1fr);
  }

  .hero__scroll {
    display: flex;
  }

  .advantages__layout {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .request__layout {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .contacts__grid {
    grid-template-columns: 1fr 1.1fr;
  }

  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 32px;
  }

  .section {
    padding: 110px 0;
  }

  .cards-grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .steps {
    max-width: 800px;
  }
}

@media (min-width: 1200px) {
  .hero__title {
    font-size: 3.75rem;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-scroll span {
    animation: none;
  }


  .btn:hover,
  .info-card:hover,
  .service-card:hover,
  .hero__perk:hover,
  .stat:hover {
    transform: none;
  }
}