:root {
  --bg-0: #070b12;
  --bg-1: #0d1522;
  --bg-2: #121c2c;
  --ink: #eef4ff;
  --muted: #8fa0b8;
  --line: rgba(180, 205, 240, 0.12);
  --cyan: #3ad6ff;
  --cyan-deep: #1498c4;
  --amber: #f0b429;
  --amber-deep: #c48314;
  --emerald: #34d399;
  --emerald-deep: #0f9f6e;
  --panel: rgba(14, 22, 36, 0.72);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --radius: 22px;
  --font-display: "Orbitron", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 12% -10%, rgba(58, 214, 255, 0.16), transparent 55%),
    radial-gradient(900px 600px at 90% 0%, rgba(240, 180, 41, 0.1), transparent 50%),
    radial-gradient(700px 500px at 70% 100%, rgba(52, 211, 153, 0.08), transparent 55%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 45%, #081018);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 180, 220, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 180, 220, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 20%, black 20%, transparent 75%);
  z-index: 0;
}

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

.shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 0 0.6rem;
  animation: fadeDown 0.8s ease both;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(58, 214, 255, 0.25), rgba(20, 152, 196, 0.08));
  border: 1px solid rgba(58, 214, 255, 0.35);
  box-shadow: 0 0 28px rgba(58, 214, 255, 0.18);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.brand-text strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-text span {
  color: var(--muted);
  font-size: 0.82rem;
}

.admin-link {
  font-size: 0.85rem;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  transition: 0.25s ease;
}

.admin-link:hover {
  color: var(--ink);
  border-color: rgba(58, 214, 255, 0.45);
  background: rgba(58, 214, 255, 0.08);
}

.hero {
  padding: 3.2rem 0 2.2rem;
  text-align: center;
  animation: riseIn 0.9s ease both;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}

.hero-kicker::before,
.hero-kicker::after {
  content: "";
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.hero-kicker::after {
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: linear-gradient(180deg, #ffffff 10%, #9fdfff 70%, #3ad6ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px rgba(58, 214, 255, 0.15);
}

.hero p {
  margin: 1.1rem auto 0;
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  padding: 1rem 0 3.5rem;
}

.products.count-1 {
  grid-template-columns: minmax(280px, 420px);
  justify-content: center;
}

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

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

.product {
  position: relative;
  min-height: 420px;
  border-radius: var(--radius);
  padding: 1.6rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 40%),
    var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  opacity: 0;
  animation: cardIn 0.8s ease forwards;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.product:nth-child(1) { animation-delay: 0.15s; }
.product:nth-child(2) { animation-delay: 0.3s; }
.product:nth-child(3) { animation-delay: 0.45s; }

.product::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at var(--mx, 80%) var(--my, 0%), var(--glow), transparent 42%),
    radial-gradient(circle at 80% 0%, var(--glow), transparent 45%);
  opacity: 0.95;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.product:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
  transform: translateY(-4px);
}

.product[data-accent="cyan"] {
  --accent: var(--cyan);
  --accent-deep: var(--cyan-deep);
  --glow: rgba(58, 214, 255, 0.18);
}

.product[data-accent="amber"] {
  --accent: var(--amber);
  --accent-deep: var(--amber-deep);
  --glow: rgba(240, 180, 41, 0.16);
}

.product[data-accent="emerald"] {
  --accent: var(--emerald);
  --accent-deep: var(--emerald-deep);
  --glow: rgba(52, 211, 153, 0.16);
}

.product-inner {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.product-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.6rem;
}

.badge {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 0.4rem 0.65rem;
  border-radius: 999px;
}

.slot-no {
  font-family: var(--font-display);
  color: rgba(255, 255, 255, 0.18);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
}

.product h2 {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

.version {
  font-family: var(--font-display);
  font-size: 1.85rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 0.85rem;
}

.desc {
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.95rem;
  flex: 1;
}

.meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 1.4rem 0 1.2rem;
}

.meta-item {
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
}

.meta-item span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  margin-bottom: 0.25rem;
}

.meta-item strong {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: 100%;
  min-height: 52px;
  border: none;
  border-radius: 14px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  color: #041018;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  box-shadow: 0 12px 30px color-mix(in srgb, var(--accent) 28%, transparent);
  transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  box-shadow: 0 16px 36px color-mix(in srgb, var(--accent) 38%, transparent);
}

.btn:active {
  transform: translateY(0);
}

.btn[disabled],
.btn.is-disabled {
  cursor: not-allowed;
  filter: grayscale(0.4);
  opacity: 0.55;
  box-shadow: none;
  transform: none;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2.2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.85rem;
  animation: fadeDown 1s ease both;
}

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

@keyframes riseIn {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 960px) {
  .products {
    grid-template-columns: 1fr;
  }

  .product {
    min-height: auto;
  }

  .footer {
    flex-direction: column;
    text-align: center;
  }
}