/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0b0d12;
  --bg-card: #12151c;
  --bg-elevated: #1a1e28;
  --border: #252a36;
  --text: #e8eaed;
  --text-muted: #9aa0a6;
  --accent: #00d4aa;
  --accent-hover: #00f0c0;
  --accent-dim: rgba(0, 212, 170, 0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  background-image: url('../images/bg-100.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Extra dark overlay so the bill remains barely visible */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(11, 13, 18, 0.82);
  pointer-events: none;
  z-index: -1;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo span {
  color: var(--accent);
}

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

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.header__phone {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--accent);
  transition: opacity var(--transition);
}

.header__phone:hover {
  opacity: 0.85;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 20px;
  letter-spacing: 0.3px;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero__text {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 32px;
}

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

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__glow {
  position: absolute;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
}

.hero__card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  text-align: center;
  box-shadow: var(--shadow);
}

.hero__card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.hero__card p {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.hero__card span {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--accent);
  color: #0b0d12;
}

.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 212, 170, 0.3);
}

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

.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--whatsapp {
  background: #25d366;
  color: #fff;
}

.btn--whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
}

.btn--whatsapp .btn__icon {
  display: flex;
  align-items: center;
}

.cta__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.footer__wa {
  display: block;
  margin-top: 4px;
  color: #25d366 !important;
  font-size: 0.95rem !important;
}

.btn--small {
  padding: 10px 18px;
  font-size: 0.85rem;
}

.btn--large {
  padding: 18px 36px;
  font-size: 1.15rem;
}

.btn__icon {
  font-size: 1.1em;
}

/* ===== Sections ===== */
.section {
  padding: 90px 0;
}

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

.section__header {
  text-align: center;
  margin-bottom: 50px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.section__subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ===== About ===== */
.about {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 50px;
  align-items: start;
}

.about__text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.about__list {
  margin-top: 24px;
}

.about__list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--text);
}

.about__list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

.about__stats {
  display: grid;
  gap: 16px;
}

.stat {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
  text-align: center;
}

.stat__num {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.stat__label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== Products ===== */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 170, 0.4);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.product-card__img {
  aspect-ratio: 4 / 3;
  background: var(--bg-elevated);
  overflow: hidden;
}

.product-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-card__img img {
  transform: scale(1.05);
}

.product-card__body {
  padding: 20px;
}

.product-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.product-card__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.55;
}

.product-card__specs {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.product-card__specs li {
  padding: 4px 0;
  line-height: 1.4;
}

.product-card__specs strong {
  color: var(--text);
  font-weight: 500;
}

.products__note {
  text-align: center;
  margin-top: 32px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== Advantages ===== */
.advantages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.advantage {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color var(--transition);
}

.advantage:hover {
  border-color: rgba(0, 212, 170, 0.35);
}

.advantage__icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.advantage h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.advantage p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ===== CTA ===== */
.section--cta {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg) 0%, #0e1219 100%);
}

.cta {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.cta__title {
  font-size: clamp(1.8rem, 4vw, 2.3rem);
  font-weight: 700;
  margin-bottom: 14px;
}

.cta__text {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

.cta__contacts {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.cta__address {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 28px;
  text-align: center;
}

.cta__address-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 10px;
}

.cta__address p {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.5;
}

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

.btn--map {
  margin-top: 4px;
}

.cta__hint {
  margin-top: 28px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.footer__brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.footer__contacts {
  text-align: right;
}

.footer__contacts a {
  font-weight: 600;
  color: var(--accent);
  font-size: 1.05rem;
}

.footer__address {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.footer__map-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.9rem !important;
  font-weight: 500 !important;
}

.footer__copy {
  width: 100%;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 10px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* ===== Mobile ===== */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__visual {
    order: -1;
  }

  .about {
    grid-template-columns: 1fr;
  }

  .footer__contacts {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .header__phone {
    display: none;
  }

  .burger {
    display: flex;
  }

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

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

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

  .hero {
    padding: 110px 0 70px;
  }

  .section {
    padding: 70px 0;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

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