/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", sans-serif;
  background-color: #0a0a0a;
  color: #f0f0f0;
  line-height: 1.6;
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

.landing {
  width: 375px;
  min-height: 100vh;
  background-color: #0a0a0a;
  overflow-x: hidden;
  position: relative;
  flex-shrink: 0;
}

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

/* ===== HEADER / NAV ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.95);
  border-bottom: 1px solid rgba(224, 16, 16, 0.3);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 375px;
}

.logo {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 2px;
}

.logo span {
  color: #e01010;
}

.language-selector {
  display: flex;
  gap: 4px;
  align-items: center;
}

.lang-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #666;
  font-family: "Inter", sans-serif;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: rgba(255, 255, 255, 0.03);
}

.lang-btn:hover {
  border-color: rgba(224, 16, 16, 0.5);
  color: #f0f0f0;
  background: rgba(224, 16, 16, 0.1);
}

.lang-btn.active {
  border-color: #e01010;
  color: #e01010;
  background: rgba(224, 16, 16, 0.15);
  box-shadow: 0 0 20px rgba(224, 16, 16, 0.1);
}

.lang-divider {
  color: #333;
  font-size: 11px;
  font-weight: 300;
  user-select: none;
}

/* ===== HERO ===== */
.hero {
  min-height: 500px;
  background: linear-gradient(135deg, #0a0a0a, #1a0505);
  padding: 40px 20px 60px;
  text-align: center;
}

.hero-title {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.hero-title span {
  color: #e01010;
}

.hero-subtitle {
  font-size: 14px;
  color: #888;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.hero-desc {
  font-size: 15px;
  color: #aaa;
  line-height: 1.6;
  margin-bottom: 28px;
  padding: 0 4px;
}

.hero-image {
  background: rgba(224, 16, 16, 0.05);
  border: 2px solid #e01010;
  padding: 0;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  min-height: 180px;
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.hero-feature {
  background: rgba(224, 16, 16, 0.05);
  border: 1px solid rgba(224, 16, 16, 0.2);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.hero-feature .icon {
  font-size: 22px;
  line-height: 1;
}

/* ===== SECTION: SPECS ===== */
.section {
  padding: 60px 0;
  background: #0f0f0f;
}

.section-title {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: 22px;
  text-align: center;
  padding: 0 20px;
  margin-bottom: 40px;
  line-height: 1.3;
}

.section-title span {
  color: #e01010;
}

.specs-grid {
  display: grid;
  grid-template-columns: 1fr;
  background: rgba(224, 16, 16, 0.15);
  border-left: 3px solid #e01010;
  margin: 0 20px;
}

.spec-item {
  background: #0a0a0a;
  padding: 20px 20px;
  border-bottom: 1px solid rgba(224, 16, 16, 0.05);
  transition: background 0.2s;
}

.spec-item:last-child {
  border-bottom: none;
}

.spec-item:hover {
  background: #111;
}

.spec-label {
  font-family: "Share Tech Mono", monospace;
  font-size: 10px;
  letter-spacing: 2px;
  color: #666;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.spec-value {
  font-family: "Orbitron", sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: #f0f0f0;
}

/* ===== SECTION: ADVANTAGES ===== */
.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 0 20px;
}

.advantage-card {
  background: rgba(20, 20, 20, 0.6);
  border: 1px solid rgba(224, 16, 16, 0.2);
  padding: 28px 24px;
  transition:
    transform 0.25s,
    border-color 0.25s;
}

.advantage-card:active {
  transform: scale(0.98);
}

.advantage-icon {
  font-size: 40px;
  line-height: 1;
  margin-bottom: 12px;
}

.advantage-title {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: 18px;
  margin-bottom: 8px;
}

.advantage-desc {
  font-size: 14px;
  color: #888;
  line-height: 1.6;
}

/* ===== SECTION: REVIEWS ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 0 20px;
}

.review-card {
  background: rgba(20, 20, 20, 0.6);
  border: 1px solid rgba(224, 16, 16, 0.2);
  padding: 24px 20px;
}

.stars {
  display: flex;
  gap: 4px;
  font-size: 18px;
  color: #e01010;
  margin-bottom: 12px;
}

.review-text {
  font-size: 14px;
  color: #ccc;
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 16px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(224, 16, 16, 0.2);
  border: 2px solid #e01010;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.review-name {
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 13px;
  color: #f0f0f0;
}

.review-date {
  font-size: 11px;
  color: #666;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, #e01010, #a00c0c);
  padding: 60px 20px;
  text-align: center;
}

.cta-title {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: 24px;
  line-height: 1.3;
  margin-bottom: 8px;
}

.cta-sub {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

.battery-selector {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 28px;
}

.battery-option {
  flex: 1;
  max-width: 140px;
  background: rgba(0, 0, 0, 0.3);
  border: 3px solid rgba(255, 255, 255, 0.2);
  padding: 16px 12px;
  cursor: pointer;
  transition: all 0.25s ease;
  border-radius: 8px;
}

.battery-option:active {
  transform: scale(0.96);
}

.battery-option.selected {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
}

.battery-option .icon {
  font-size: 32px;
  display: block;
  margin-bottom: 4px;
}

.battery-option .label {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.5px;
}

.battery-option .sub {
  font-size: 11px;
  opacity: 0.7;
}

.cta-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.cta-option {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.3);
  padding: 20px;
  transition:
    background 0.2s,
    border-color 0.2s;
  cursor: pointer;
}

.cta-option:active {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(0.98);
}

.cta-option.selected-option {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.15);
}

.cta-option .icon {
  font-size: 32px;
  display: block;
  margin-bottom: 4px;
}

.cta-option .label {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 1px;
}

.cta-option .price {
  font-family: "Orbitron", sans-serif;
  font-size: 24px;
  font-weight: 900;
}

.cta-option .price-small {
  font-family: "Orbitron", sans-serif;
  font-size: 18px;
  font-weight: 900;
}

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

.cta-link {
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.2);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: #fff;
  transition:
    background 0.2s,
    border-color 0.2s;
  text-align: left;
  cursor: pointer;
}

.cta-link:active {
  background: rgba(255, 255, 255, 0.1);
}

.cta-link .icon-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.cta-link .icon-circle.telegram {
  background: #0088cc;
}

.cta-link .icon-circle.whatsapp {
  background: #25d366;
}

.cta-link .icon-circle.messenger {
  background: #0084ff;
}

.cta-link .link-text {
  flex: 1;
}

.cta-link .link-title {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.5px;
}

.cta-link .link-sub {
  font-size: 12px;
  opacity: 0.8;
}

.cta-link .arrow {
  font-size: 20px;
  opacity: 0.6;
}

.cta-note {
  font-size: 11px;
  opacity: 0.7;
  line-height: 1.6;
  margin-top: 20px;
}

/* ===== FOOTER ===== */
.footer {
  background: #070707;
  padding: 40px 20px 28px;
  text-align: center;
}

.footer .logo {
  font-size: 16px;
  display: inline-block;
  margin-bottom: 16px;
}

.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: #666;
  margin-bottom: 20px;
}

.footer-socials {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
}

.footer-social {
  width: 40px;
  height: 40px;
  background: rgba(224, 16, 16, 0.1);
  border: 1px solid rgba(224, 16, 16, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #e01010;
  transition:
    background 0.2s,
    border-color 0.2s;
  text-decoration: none;
}

.footer-social:active {
  background: rgba(224, 16, 16, 0.2);
  border-color: #e01010;
}

.footer-copy {
  font-size: 10px;
  color: #444;
  letter-spacing: 1px;
  border-top: 1px solid rgba(224, 16, 16, 0.2);
  padding-top: 20px;
}

@media (min-width: 376px) {
  body {
    background: #050505;
    padding: 20px 0;
  }

  .landing {
    box-shadow: 0 0 60px rgba(224, 16, 16, 0.1);
    border-radius: 12px;
    overflow: hidden;
  }

  .advantage-card:hover {
    transform: translateY(-4px);
    border-color: #e01010;
  }

  .review-card:hover {
    border-color: #e01010;
  }

  .cta-option:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #fff;
  }

  .cta-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
  }

  .footer-social:hover {
    background: rgba(224, 16, 16, 0.2);
    border-color: #e01010;
  }

  .spec-item:hover {
    background: #111;
  }

  .lang-btn:hover {
    border-color: rgba(224, 16, 16, 0.5);
    color: #f0f0f0;
    background: rgba(224, 16, 16, 0.1);
  }

  .battery-option:hover {
    border-color: rgba(255, 255, 255, 0.5);
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero,
.specs-grid,
.advantages-grid,
.reviews-grid,
.cta-options,
.cta-links {
  animation: fadeUp 0.6s ease forwards;
}

.advantages-grid {
  animation-delay: 0.1s;
}

.reviews-grid {
  animation-delay: 0.2s;
}

.cta-options {
  animation-delay: 0.3s;
}

.cta-links {
  animation-delay: 0.4s;
}