/* ─── Layout ─── */
.product-page {
  padding: 7rem var(--px) 5rem;
}

.product-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 4rem;
  align-items: start;
}

/* ─── Breadcrumb ─── */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--col-text-muted);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb a { color: var(--col-text-dim); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--col-accent); }
.breadcrumb span { opacity: 0.4; }

/* ─── App Header ─── */
.app-header {
  display: flex;
  gap: 1.4rem;
  align-items: center;
  margin-bottom: 2rem;
}

.app-icon-lg {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  border: 1px solid var(--col-border-mid);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  flex-shrink: 0;
}

.app-header-meta { display: flex; flex-direction: column; gap: 0.3rem; }

.app-name {
  font-size: 2rem;
  font-weight: 800;
  color: var(--col-off-white);
  letter-spacing: -0.02em;
  line-height: 1;
}

.app-bundle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--col-text-muted);
}

.app-status-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.4rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.62rem;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border: 1px solid;
  border-radius: 3px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge-active  { color: var(--col-success);  border-color: var(--col-success); }
.badge-version { color: var(--col-accent);   border-color: var(--col-accent); }
.badge-ios     { color: var(--col-text-dim); border-color: var(--col-border-mid); }

/* ─── Tabs ─── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--col-border-mid);
  margin-bottom: 2rem;
}

.tab-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.7rem 1.4rem;
  background: none;
  border: none;
  color: var(--col-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}

.tab-btn:hover { color: var(--col-text); }

.tab-btn.active {
  color: var(--col-accent);
  border-bottom-color: var(--col-accent);
}

.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ─── Overview content ─── */
.overview-section { margin-bottom: 2.5rem; }

.overview-section h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--col-off-white);
  margin-bottom: 0.8rem;
  letter-spacing: -0.01em;
}

.overview-section p {
  font-size: 0.92rem;
  color: var(--col-text);
  line-height: 1.75;
}

/* Feature grid */
.feat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.feat-item {
  background: var(--col-bg-card);
  border: 1px solid var(--col-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  transition: border-color var(--transition), transform var(--transition);
}

.feat-item:hover {
  border-color: var(--col-accent);
  transform: translateY(-2px);
}

.feat-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.feat-text strong {
  display: block;
  font-size: 0.82rem;
  color: var(--col-off-white);
  margin-bottom: 2px;
}

.feat-text span {
  font-size: 0.75rem;
  color: var(--col-text-muted);
  font-family: var(--font-mono);
}

/* ─── Versions table ─── */
.version-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.version-table th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--col-text-muted);
  text-align: left;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--col-border-mid);
}

.version-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--col-border);
  color: var(--col-text);
  vertical-align: middle;
}

.version-table tr:last-child td { border-bottom: none; }

.version-table tr:hover td { background: var(--col-bg-card); }

.ver-num {
  font-family: var(--font-mono);
  color: var(--col-off-white);
  font-size: 0.82rem;
}

/* ─── Technical tab ─── */
.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.tech-block {
  background: var(--col-bg-card);
  border: 1px solid var(--col-border);
  border-radius: var(--radius-sm);
  padding: 1.2rem;
}

.tech-block h3 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--col-accent);
  margin-bottom: 0.8rem;
}

.tech-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tech-list li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--col-text-dim);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tech-list li::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--col-accent);
  flex-shrink: 0;
  opacity: 0.6;
}

.code-block {
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--col-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--col-text-dim);
  overflow-x: auto;
  white-space: pre;
  margin-top: 1rem;
}

.code-block .c-kw  { color: #00AAFF; }
.code-block .c-str { color: #00D68F; }
.code-block .c-cmt { color: var(--col-text-muted); }

/* ─── Sidebar / Buy Panel ─── */
.buy-panel {
  background: var(--col-bg-card);
  border: 1px solid var(--col-border-mid);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  position: sticky;
  top: 90px;
}

.buy-panel-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--col-text-muted);
  margin-bottom: 1rem;
}

.price-display {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.4rem;
}

.price-eur {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--col-off-white);
  letter-spacing: -0.03em;
  line-height: 1;
}

.price-btc {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--col-text-muted);
}

.price-note {
  font-size: 0.78rem;
  color: var(--col-text-muted);
  margin-bottom: 1.6rem;
}

.divider-h {
  height: 1px;
  background: var(--col-border);
  margin: 1.4rem 0;
}

.included-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
}

.included-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--col-text);
}

.check {
  color: var(--col-success);
  font-size: 0.8rem;
  flex-shrink: 0;
}

.btn-buy {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: var(--col-accent);
  color: var(--col-bg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem 1.5rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  letter-spacing: 0.01em;
}

.btn-buy:hover {
  background: #29B8FF;
  box-shadow: 0 0 32px rgba(0,170,255,0.4);
  transform: translateY(-2px);
}

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

.support-note {
  margin-top: 1.2rem;
  font-size: 0.75rem;
  color: var(--col-text-muted);
  text-align: center;
  font-family: var(--font-mono);
  line-height: 1.6;
}

.support-note a {
  color: var(--col-accent);
}

/* ─── Modal ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6,15,26,0.92);
  backdrop-filter: blur(8px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--col-bg-card);
  border: 1px solid var(--col-border-mid);
  border-radius: var(--radius-md);
  padding: 2rem;
  width: 100%;
  max-width: 440px;
  transform: translateY(16px);
  transition: transform 0.3s ease;
  position: relative;
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--col-text-muted);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  transition: color var(--transition);
}

.modal-close:hover { color: var(--col-off-white); }

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--col-off-white);
  margin-bottom: 0.3rem;
}

.modal-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--col-text-muted);
  margin-bottom: 1.5rem;
}

.payment-amount {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--col-border-mid);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  margin-bottom: 1.4rem;
}

.payment-amount-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--col-text-muted);
  margin-bottom: 0.3rem;
}

.payment-btc-val {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--col-accent);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.payment-eur-val {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--col-text-muted);
  margin-top: 2px;
}

.qr-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

#qrcode {
  background: #fff;
  padding: 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btc-address-wrap {
  width: 100%;
}

.btc-address-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--col-text-muted);
  margin-bottom: 0.3rem;
}

.btc-address-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.btc-address {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--col-text-dim);
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--col-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color var(--transition);
}

.btc-address:hover { border-color: var(--col-accent); }

.btn-copy {
  background: none;
  border: 1px solid var(--col-border-mid);
  color: var(--col-text-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--transition), color var(--transition);
  flex-shrink: 0;
}

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

/* Timer */
.timer-bar-wrap {
  margin-top: 1.4rem;
}

.timer-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--col-text-muted);
  margin-bottom: 0.4rem;
}

.timer-countdown {
  color: var(--col-accent);
  font-weight: 700;
}

.timer-track {
  height: 3px;
  background: var(--col-border);
  border-radius: 2px;
  overflow: hidden;
}

.timer-fill {
  height: 100%;
  background: var(--col-accent);
  border-radius: 2px;
  transition: width 1s linear, background 1s linear;
  width: 100%;
}

.timer-fill.warning { background: #FFD580; }
.timer-fill.danger  { background: #ff5f57; }

.modal-note {
  font-size: 0.75rem;
  color: var(--col-text-muted);
  text-align: center;
  margin-top: 1rem;
  font-family: var(--font-mono);
  line-height: 1.6;
}

.modal-note a { color: var(--col-accent); }

/* ─── Related ─── */
.related-section {
  padding: 5rem var(--px);
  background: var(--col-bg-mid);
  border-top: 1px solid var(--col-border);
}

.related-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.related-card {
  background: var(--col-bg-card);
  border: 1px solid var(--col-border);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  transition: border-color var(--transition), transform var(--transition);
  text-decoration: none;
}

.related-card:hover {
  border-color: var(--col-accent);
  transform: translateY(-3px);
}

.related-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--col-border-mid);
  flex-shrink: 0;
}

.related-info strong {
  display: block;
  font-size: 0.9rem;
  color: var(--col-off-white);
  margin-bottom: 2px;
}

.related-info span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--col-text-muted);
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .product-inner {
	grid-template-columns: 1fr;
	gap: 2.5rem;
  }

  .buy-panel {
	position: static;
  }

  .feat-grid,
  .tech-grid {
	grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .app-name { font-size: 1.5rem; }
  .modal { padding: 1.5rem; }
  .payment-btc-val { font-size: 1.1rem; }
}