/* ===== RESET ===== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #0b0d12;
  color: #f3f4f6;
  line-height: 1.6;
}

/* ===== BASE ===== */

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font: inherit;
}

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

/* ===== HERO ===== */

.hero {
  min-height: 70vh;
  padding: 100px 20px 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(163, 230, 53, 0.08), transparent 40%),
    radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.05), transparent 40%),
    linear-gradient(135deg, #05070b 0%, #0b0f17 50%, #0f172a 100%);
}

.hero-content {
  width: 100%;
  max-width: 1800px;
}

.hero-subtitle {
  color: #a3e635;
  letter-spacing: 0.3em;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(2.7rem, 8vw, 6rem);
  line-height: 0.95;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #f9fafb;
  margin-bottom: 28px;
  text-shadow:
    0 0 20px rgba(255, 255, 255, 0.08),
    0 0 40px rgba(163, 230, 53, 0.15);
}

.hero-tags {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px 34px;
  max-width: 980px;
  margin: 0 auto;
}

.hero-tags a {
  position: relative;
  padding: 8px 0;
  color: #9ca3af;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.hero-tags a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(163, 230, 53, 0.6),
    transparent
  );
  opacity: 0.6;
}

.hero-tags a:hover {
  color: #a3e635;
}

/* ===== GRID ===== */

.content {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  padding: 40px 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.catalog { grid-column: 1; }
.prices { grid-column: 2; }
.services { grid-column: 1; }
.about { grid-column: 2; }

.contacts {
  grid-column: 1 / -1;
}

/* ===== SECTIONS ===== */

section {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.98), rgba(12, 18, 30, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px;
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

section:hover {
  border-color: rgba(163, 230, 53, 0.22);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
}

h2 {
  margin-bottom: 18px;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #a3e635;
}

/* ===== CATALOG TABS ===== */

.catalog-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.catalog-tab {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(0, 155, 149, 0.32);
  background: rgba(0, 155, 149, 0.08);
  color: #d1d5db;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.catalog-tab:hover {
  color: #f3f4f6;
  border-color: rgba(163, 230, 53, 0.35);
  background: rgba(163, 230, 53, 0.08);
  transform: translateY(-1px);
}

.catalog-tab.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(0, 155, 149, 0.22));
  border-color: rgba(34, 197, 94, 0.34);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.catalog-group {
  display: none;
}

.catalog-group.active {
  display: block;
}

/* ===== TRACK PLAYER ===== */

.track-card {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 14px;
  margin-bottom: 10px;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.12), rgba(31, 41, 55, 1));
  border: 1px solid rgba(34, 197, 94, 0.2);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.track-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(to bottom, #009b95, transparent);
  opacity: 0.9;
}

.track-card:hover {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.16), rgba(43, 58, 80, 1));
  border-color: rgba(163, 230, 53, 0.28);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.play-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #374151;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.play-btn:hover {
  transform: scale(1.08);
}

.play-btn.is-playing {
  background: #22c55e;
  box-shadow: 0 0 14px rgba(34, 197, 94, 0.45);
}

.play-icon {
  width: 20px;
  height: 20px;
}

.track-info {
  flex: 1;
  min-width: 0;
}

.track-info h3 {
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #f3f4f6;
}

.progress-container {
  height: 5px;
  background: #3b475b;
  border-radius: 999px;
  margin-top: 8px;
  cursor: pointer;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #84cc16, #22c55e);
  border-radius: 999px;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.3);
}

.audio-player {
  display: none;
}

/* ===== INFO BLOCKS ===== */

.section-subtitle {
  margin: 24px 0 14px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #a3e635;
}

.info-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-card {
  padding: 16px 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.12), rgba(31, 41, 55, 1));
  border: 1px solid rgba(34, 197, 94, 0.2);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.info-card:hover {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.16), rgba(43, 58, 80, 1));
  border-color: rgba(163, 230, 53, 0.28);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.info-card--accent {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.12), rgba(31, 41, 55, 1));
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.info-label {
  margin-bottom: 8px;
  color: #009b95;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.45;
}

.info-label::after {
  content: "";
  display: block;
  width: 42px;
  height: 2px;
  margin-top: 6px;
  background: linear-gradient(to right, #009b95, transparent);
  border-radius: 999px;
}

.info-value {
  color: #f3f4f6;
  font-size: 1.55rem;
  font-weight: 800;
  line-height: 1.2;
}

.info-text {
  color: #d1d5db;
  font-size: 1rem;
  line-height: 1.75;
}

.info-text strong {
  color: #f3f4f6;
  font-weight: 700;
}

/* ===== ABOUT BOOST ===== */

.about-stack {
  gap: 14px;
}

.about-card {
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(to bottom, #009b95, transparent);
  opacity: 0.9;
}

.about .info-text {
  line-height: 1.8;
}

/* ===== LEGACY TEXT ===== */

.prices p,
.services p,
.about p {
  margin-bottom: 10px;
  color: #d1d5db;
}

.prices h3 {
  margin-top: 14px;
  margin-bottom: 10px;
  color: #a3e635;
}

/* ===== CONTACT ===== */

.contacts {
  text-align: center;
}

.contacts h2 {
  margin-bottom: 10px;
}

/* ===== MAIL BUTTON ===== */

.contact-btn {
  display: inline-block;
  margin-top: 18px;
  padding: 14px 30px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #ffffff;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: all 0.25s ease;
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(34, 197, 94, 0.3);
}

/* ===== MOBILE ===== */

@media (max-width: 768px) {
  .content {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 28px 16px;
  }

  .catalog,
  .prices,
  .services,
  .about,
  .contacts {
    grid-column: 1 / -1;
  }

  .hero {
    min-height: 62vh;
    padding: 80px 16px 40px;
  }

  .hero-tags {
    gap: 12px;
  }

  .hero-tags a {
    width: 100%;
    text-align: center;
  }

  section {
    padding: 18px;
  }

  h2 {
    font-size: 1.05rem;
  }

  .catalog-tabs {
    gap: 8px;
    margin-bottom: 16px;
  }

  .catalog-tab {
    flex: 1 1 100%;
    text-align: center;
    font-size: 0.82rem;
    padding: 10px 14px;
  }

  .info-card,
  .track-card {
    padding: 14px 16px;
  }

  .info-value {
    font-size: 1.3rem;
  }

  .info-text {
    font-size: 0.96rem;
  }
}