/* =========================================================
   ValidProps® — Ultra-Dark Tech Theme
   ========================================================= */

:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --surface-2: #161616;
  --border: #222222;
  --border-strong: #2a2a2a;
  --text: #ffffff;
  --text-muted: #8a8a8a;
  --text-dim: #5a5a5a;
  --accent: #FF3131;
  --accent-hover: #ff4545;
  --accent-dim: rgba(255, 49, 49, 0.12);
  --accent-glow: rgba(255, 49, 49, 0.35);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --container: 1240px;
  --nav-h: 72px;
  --shadow-soft: 0 1px 0 rgba(255, 255, 255, 0.04) inset;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
  --transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  font-feature-settings: "ss01", "cv11";
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--accent); }

button { font-family: inherit; cursor: pointer; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.hidden { display: none !important; }

/* =========================================================
   Top Banner
   ========================================================= */

.top-banner {
  background: var(--accent);
  color: #fff;
  text-align: center;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 9px 16px;
  position: relative;
  z-index: 101;
}

.top-banner strong {
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-right: 6px;
}

/* =========================================================
   Navbar
   ========================================================= */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  width: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.04em;
  font-weight: 800;
  font-size: 15px;
  color: var(--text);
}

.brand:hover { color: var(--text); }

.brand-mark {
  width: 18px;
  height: 18px;
  background: var(--accent);
  border-radius: 3px;
  box-shadow: 0 0 14px var(--accent-glow);
  display: inline-block;
}

.brand-text sup {
  font-size: 9px;
  margin-left: 2px;
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--text-muted);
}

.nav-links a { font-weight: 500; }

.cart-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  transition: all var(--transition);
}

.cart-btn:hover {
  border-color: var(--accent);
  color: var(--text);
  background: var(--surface-2);
}

.cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
}

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px transparent, 0 6px 18px -8px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px -6px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  border-color: var(--text-muted);
  color: var(--text);
}

.btn-block { width: 100%; }

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
}

/* =========================================================
   Hero
   ========================================================= */

.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/images/hero-bg.png');
  background-size: cover;
  background-position: center;
  opacity: 0.45;
  z-index: -2;
  filter: saturate(110%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(255, 49, 49, 0.10), transparent 60%),
    linear-gradient(180deg, rgba(10,10,10,0.55) 0%, rgba(10,10,10,0.92) 75%, var(--bg) 100%);
  z-index: -1;
}

.hero-inner {
  max-width: 880px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(255, 49, 49, 0.25);
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin-bottom: 20px;
}

.accent { color: var(--accent); }

.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 600px;
  margin: 0 auto;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}

.hero-stats > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hero-stats strong {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.hero-stats span {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

/* =========================================================
   Sections
   ========================================================= */

.section { padding: 100px 0; }

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 16px 0 14px;
}

.section-sub {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 540px;
  margin: 0 auto;
}

/* =========================================================
   Category blocks + Product Grid
   ========================================================= */

.category-block {
  margin-bottom: 72px;
  scroll-margin-top: calc(var(--nav-h) + 36px);
}

.category-block:last-child { margin-bottom: 0; }

.category-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border);
}

.category-title {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-top: 4px;
}

.category-blurb {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 580px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, rgba(255,49,49,0.08), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.product-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.product-card:hover::before { opacity: 1; }

.product-tag {
  align-self: flex-start;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 4px 10px;
  background: var(--accent-dim);
  border: 1px solid rgba(255, 49, 49, 0.25);
  border-radius: 999px;
}

.product-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--bg) center / cover no-repeat;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  position: relative;
  overflow: hidden;
  padding: 14px;
}

.product-image-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10,10,10,0.1) 0%, rgba(10,10,10,0.85) 100%);
  pointer-events: none;
}

.product-amount {
  position: relative;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.6);
  z-index: 1;
}

.product-amount sub {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin-left: 6px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: baseline;
}

.product-desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-muted);
}

.product-info { flex: 1; display: flex; flex-direction: column; gap: 12px; }

.product-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.product-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.product-meta li {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.product-meta li::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.product-price {
  display: flex;
  flex-direction: column;
}

.product-price strong {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.product-price span {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.add-btn {
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.add-btn:hover { background: var(--accent-hover); }

.add-btn.added {
  background: #1f1f1f;
  color: var(--accent);
  border: 1px solid var(--accent);
}

/* =========================================================
   Reviews
   ========================================================= */

.reviews-section { background: var(--bg); }

.reviews-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 40px;
  align-items: flex-start;
}

.reviews-summary {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.summary-score {
  font-size: 64px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.summary-stars {
  display: flex;
  gap: 4px;
}

.summary-meta {
  font-size: 13px;
  color: var(--text-muted);
}

.bar-chart {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.bar-row {
  display: grid;
  grid-template-columns: 16px 1fr 38px;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.bar-label { font-weight: 600; color: var(--text); }

.bar-track {
  height: 6px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
}

.bar-pct { text-align: right; font-variant-numeric: tabular-nums; }

.summary-trust {
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-item .dot,
.trust-badges .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.review-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--transition);
}

.review-card:hover { border-color: var(--border-strong); }

.review-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.review-name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.005em;
}

.review-date {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.review-stars {
  display: flex;
  gap: 3px;
}

.review-text {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Stars (shared) */

.star {
  width: 16px;
  height: 16px;
  display: inline-block;
}

.star-lg { width: 20px; height: 20px; }

/* =========================================================
   FAQ Band
   ========================================================= */

.faq-band {
  padding: 60px 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(255,49,49,0.08), transparent 60%),
    var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.faq-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.faq-band h3 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.faq-band p {
  font-size: 14px;
  color: var(--text-muted);
}

/* =========================================================
   Footer
   ========================================================= */

.footer {
  padding: 36px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-meta {
  font-size: 12px;
  color: var(--text-muted);
}

/* =========================================================
   Floating Telegram
   ========================================================= */

.floating-tg {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(255, 49, 49, 0.45);
  z-index: 90;
  transition: all var(--transition);
}

.floating-tg:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px) scale(1.05);
}

/* =========================================================
   Checkout
   ========================================================= */

.checkout-main { padding: 60px 0 100px; min-height: calc(100vh - var(--nav-h) - 100px); }

.checkout-head {
  text-align: center;
  margin-bottom: 48px;
}

.checkout-head h1 {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 14px 0 12px;
}

.checkout-head p {
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto;
}

.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  align-items: flex-start;
}

.checkout-form-card,
.checkout-summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.checkout-summary-card {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.field {
  margin-bottom: 20px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field-row .field { margin-bottom: 20px; }

@media (max-width: 520px) {
  .field-row { grid-template-columns: 1fr; gap: 0; }
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  transition: all var(--transition);
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-dim);
}

.field textarea { resize: vertical; min-height: 90px; }

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238a8a8a' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  padding-right: 42px;
}

.field-hint {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.field-hint a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 28px 0 20px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.checkout-disclaimer {
  margin-top: 16px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

/* Summary */

.summary-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.summary-item:last-of-type { border-bottom: none; }

.summary-item-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.summary-item-name { font-weight: 600; }

.summary-item-meta { font-size: 12px; color: var(--text-muted); }

.summary-item-price { font-weight: 700; font-variant-numeric: tabular-nums; }

.summary-totals {
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.summary-totals .row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  padding: 6px 0;
}

.summary-totals .row strong {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.summary-totals .row.total {
  font-size: 18px;
  color: var(--text);
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.summary-totals .row.total strong {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.trust-badges {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
}

.trust-badges > div {
  display: flex;
  align-items: center;
  gap: 10px;
}

.summary-empty {
  padding: 24px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.summary-item-remove {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 11px;
  cursor: pointer;
  padding: 4px 0;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.summary-item-remove:hover { color: var(--accent); }

/* =========================================================
   Success view
   ========================================================= */

.success-wrap { text-align: left; }

.success-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(255,49,49,0.25);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.success-badge svg {
  width: 14px;
  height: 14px;
}

.success-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.success-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.order-id {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 28px;
}

.order-id-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

.order-id-value {
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
}

.success-section {
  margin-bottom: 24px;
}

.success-section h3 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.detail-list {
  list-style: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 0;
}

.detail-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  font-size: 13.5px;
  border-bottom: 1px solid var(--border);
}

.detail-list li:last-child { border-bottom: none; }

.detail-list li span { color: var(--text-muted); }
.detail-list li strong { color: var(--text); text-align: right; max-width: 60%; word-break: break-word; }

.payment-box {
  background: var(--bg);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 22px;
  position: relative;
  overflow: hidden;
}

.payment-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0% 0%, rgba(255,49,49,0.1), transparent 60%);
  pointer-events: none;
}

.payment-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.payment-address {
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 14px;
  color: var(--text);
  word-break: break-all;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  line-height: 1.5;
  margin-bottom: 14px;
}

.payment-amount {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.payment-amount strong {
  color: var(--text);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.success-actions {
  display: flex;
  gap: 10px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn-copy { flex: 1; min-width: 160px; }
.btn-tg { flex: 1; min-width: 160px; }

.copy-toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--accent);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  box-shadow: var(--shadow-card);
  opacity: 0;
  pointer-events: none;
  transition: all 250ms ease;
  z-index: 200;
}

.copy-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 1024px) {
  .reviews-layout { grid-template-columns: 1fr; }
  .reviews-summary { position: relative; top: 0; }
  .checkout-grid { grid-template-columns: 1fr; }
  .checkout-summary-card { position: relative; top: 0; order: -1; }
}

@media (max-width: 720px) {
  .container { padding: 0 20px; }
  .nav-links { display: none; }
  .section { padding: 64px 0; }
  .hero { padding: 80px 0 70px; }
  .hero-stats { grid-template-columns: 1fr; gap: 18px; padding-top: 24px; }
  .reviews-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .checkout-form-card,
  .checkout-summary-card { padding: 22px; }
  .summary-card { padding: 22px; }
  .summary-score { font-size: 52px; }
  .floating-tg { width: 50px; height: 50px; right: 16px; bottom: 16px; }
  .faq-band-inner { text-align: center; justify-content: center; }
  .faq-band-inner > div { width: 100%; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .success-actions { flex-direction: column; }
}