@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800&display=swap');

:root {
  --bg-color: #050a1f;
  --card-bg: rgba(15, 23, 49, 0.65);
  --accent-color: #6366f1;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --accent-glow: rgba(99, 102, 241, 0.6);
  --text-main: #ffffff;
  --text-muted: #a3b3c9;
  --text-dim: #cbd5e1;
  --border: rgba(168, 85, 247, 0.25);
  --radius-lg: 28px;
  --radius-md: 16px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: radial-gradient(ellipse at 50% -20%, #2a325e 0%, var(--bg-color) 60%, #02040a 100%);
  color: var(--text-main);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  margin: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Эффект частиц на фоне (опционально, можно убрать) */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.1) 0%, transparent 20%),
    radial-gradient(circle at 80% 70%, rgba(168, 85, 247, 0.1) 0%, transparent 20%);
  pointer-events: none;
  z-index: -1;
}

.p-wrap {
  max-width: 1080px;
  margin: 60px auto;
  padding: 0 24px;
  animation: slideUpFade 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes slideUpFade {
  from { opacity: 0; transform: translateY(30px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.p-card {
  position: relative;
  background: var(--card-bg);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 
    0 30px 60px -15px rgba(0, 0, 0, 0.5),
    inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

/* Градиентная рамка с анимацией свечения */
.p-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 2px; /* Толщина рамки */
  background: var(--accent-gradient);
  -webkit-mask: 
     linear-gradient(#fff 0 0) content-box, 
     linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.7;
  pointer-events: none;
  animation: borderGlow 4s linear infinite alternate;
}

@keyframes borderGlow {
  from { filter: hue-rotate(0deg) brightness(1); }
  to { filter: hue-rotate(30deg) brightness(1.3); }
}

.p-bc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 28px;
  display: flex;
  gap: 10px;
  opacity: 0.8;
}

.p-bc a {
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
}

.p-bc a:hover {
  color: #fff;
  text-shadow: 0 0 8px var(--accent-color);
}

.p-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 48px;
  align-items: start;
  position: relative;
  z-index: 1;
}

/* Стилизация контейнера изображения */
.p-img {
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  transition: all 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 
    0 15px 40px rgba(0, 0, 0, 0.3),
    0 0 30px rgba(99, 102, 241, 0.2) inset;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.p-img:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 
    0 25px 50px rgba(0, 0, 0, 0.4),
    0 0 50px rgba(168, 85, 247, 0.3) inset;
}

.p-img img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.p-img:hover img {
  transform: scale(1.05);
}

/* Типографика и цена */
h1 {
  font-size: 40px;
  font-weight: 900;
  margin: 0 0 16px 0;
  letter-spacing: -0.03em;
  background: linear-gradient(to right, #fff 20%, #a3b3c9 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.p-price {
  font-size: 42px;
  font-weight: 900;
  margin: 16px 0;
  color: #fff;
  display: flex;
  align-items: baseline;
  gap: 12px;
  text-shadow: 0 0 20px var(--accent-glow);
}

.p-price::after {
  content: "актуальна ціна";
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  background: rgba(99, 102, 241, 0.15);
  padding: 4px 10px;
  border-radius: 20px;
}

.p-stock {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 28px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  padding: 6px 14px;
  border-radius: 30px;
}

.p-stock::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 15px currentColor;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.p-stock.in { color: #4ade80; }
.p-stock.out { color: #f87171; }
.p-stock.out::before { animation-name: pulse-red; }

@keyframes pulse-red {
  0% { box-shadow: 0 0 0 0 rgba(248, 113, 113, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(248, 113, 113, 0); }
  100% { box-shadow: 0 0 0 0 rgba(248, 113, 113, 0); }
}

.p-desc {
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.65;
  margin-bottom: 32px;
  opacity: 0.9;
}

/* Кнопки */
.p-actions {
  display: flex;
  gap: 16px;
}

.p-btn {
  padding: 16px 32px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  font-size: 16px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.p-btn-main {
  background-size: 200% auto;
  background-image: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 8px 30px -5px var(--accent-glow);
  flex: 1.2;
  border: none;
}

.p-btn-main::before {
  content: "";
  position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: 0.6s;
  z-index: -1;
}

.p-btn-main:hover {
  background-position: right center;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 40px -5px var(--accent-glow);
}

.p-btn-main:hover::before {
  left: 100%;
}

.p-btn-main:active {
  transform: translateY(-1px) scale(0.98);
}

.p-btn-alt {
  background: rgba(255, 255, 255, 0.03);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(5px);
  flex: 0.8;
}

.p-btn-alt:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #fff;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
}

/* Секция SEO и FAQ */
.p-seo {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid transparent;
  border-image: linear-gradient(to right, transparent, var(--border), transparent) 1;
}

.p-seo h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 20px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.p-seo p {
  color: var(--text-dim);
  font-size: 15px;
  margin-bottom: 20px;
}

.p-faq {
  margin-top: 32px;
}

.p-faq details {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  transition: all 0.4s ease;
  overflow: hidden;
}

.p-faq details[open] {
  background: rgba(99, 102, 241, 0.08);
  border-color: var(--accent-color);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.1);
}

.p-faq summary {
  padding: 20px;
  cursor: pointer;
  font-weight: 700;
  font-size: 17px;
  outline: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.3s;
}

.p-faq summary::-webkit-details-marker {
  display: none;
}

.p-faq summary::after {
  content: "+";
  font-size: 20px;
  color: var(--accent-color);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 300;
}

.p-faq details[open] summary {
  color: #fff;
}

.p-faq details[open] summary::after {
  transform: rotate(45deg);
  color: #fff;
}

.p-faq div {
  padding: 0 20px 24px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: -1px;
  animation: fadeInDown 0.4s ease-out;
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.p-related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.p-related-links a {
  color: #e5e7eb;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  background: rgba(15, 23, 42, 0.6);
  font-size: 14px;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.p-related-links a:hover {
  border-color: rgba(99, 102, 241, 0.8);
  background: rgba(99, 102, 241, 0.14);
  transform: translateY(-1px);
}

/* Адаптивность */
@media (max-width: 900px) {
  .p-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .p-img {
    max-width: 400px;
    margin: 0 auto;
  }
  h1 { font-size: 32px; }
  .p-price { font-size: 36px; }
  .p-wrap { margin: 30px auto; }
  .p-card { padding: 24px; }
}