@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

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

.sb-root {
  --void: #0a0908;
  --panel: #171313;
  --panel-2: #1e1919;
  --line: #322a29;
  --red: #c81e1e;
  --red-bright: #ff3b30;
  --red-dim: #5c1414;
  --green: #2b6a3d;
  --green-bright: #5fbf7d;
  --text: #ece6e2;
  --text-muted: #9a8f8b;
  --text-faint: #665c59;
  font-family: 'Inter', sans-serif;
  background: linear-gradient(rgba(10, 9, 8, 0.78), rgba(10, 9, 8, 0.78)), url("../img/backgroung.png") center center / cover no-repeat fixed;
  background-color: var(--void);
  color: var(--text);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection { background: var(--red-dim); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--void); }
::-webkit-scrollbar-thumb { background: var(--panel-2); border: 2px solid var(--void); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--line); }

button { font: inherit; }
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--red-bright);
  outline-offset: 2px;
}

.sb-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 1;
}

.sb-glow {
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(200,30,30,0.16) 0%, rgba(200,30,30,0) 70%);
  pointer-events: none;
  z-index: 0;
}

.sb-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
  padding: 28px 20px 120px;
}

/* HEADER */
.sb-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: -28px -20px 32px;
  padding: 22px 20px 18px;
  background: rgba(10, 9, 8, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.32);
}
.sb-brand { display: flex; align-items: center; gap: 12px; cursor: pointer; }
.sb-brand-icon {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(155deg, var(--panel-2), var(--panel));
  border: 1px solid var(--red-dim);
  color: var(--red-bright);
  box-shadow: 0 2px 10px rgba(200, 30, 30, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}
.sb-brand-text h1 {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0;
  line-height: 1;
}
.sb-brand-text span {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}
.sb-home-btn {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 16px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 13px;
  text-decoration: none;
  cursor: pointer;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: border-color 0.15s ease, transform 0.1s ease;
}
.sb-home-btn:hover { border-color: var(--red-dim); }
.sb-home-btn:active { transform: translateY(1px); }

.sb-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--red-bright);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}
.sb-title {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  font-size: 30px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 8px 0;
}
.sb-note {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-faint);
  margin: 0 0 26px 0;
  max-width: 640px;
}

/* MATERIAL LIST */
.sb-mat-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.sb-mat-row {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red-dim);
  padding: 16px 18px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}
.sb-mat-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.sb-mat-name {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.sb-mat-subtotal {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 16px;
  color: var(--red-bright);
  white-space: nowrap;
}
.sb-mat-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* VARIANT TOGGLE */
.sb-variant-toggle {
  display: inline-flex;
  border: 1px solid var(--line);
  overflow: hidden;
}
.sb-variant-btn {
  background: var(--panel-2);
  border: none;
  color: var(--text-muted);
  padding: 8px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  border-right: 1px solid var(--line);
}
.sb-variant-btn:last-child { border-right: none; }
.sb-variant-btn:hover { color: var(--text); }
.sb-variant-btn.active {
  background: var(--red-dim);
  color: #fff;
}
.sb-variant-single {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-faint);
}
.sb-variant-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-faint);
}

/* QTY INPUT */
.sb-qty-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.sb-qty-wrap label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.sb-qty-control {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--panel-2);
}
.sb-qty-control button {
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 8px 10px;
}
.sb-qty-control button:hover { color: var(--red-bright); }
.sb-qty-control button:active { transform: scale(0.9); }
.sb-qty-input {
  width: 64px;
  background: none;
  border: none;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  color: var(--text);
  padding: 8px 6px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 14px;
  text-align: center;
}
.sb-qty-input::-webkit-outer-spin-button,
.sb-qty-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.sb-qty-input[type="number"] { -moz-appearance: textfield; }

/* SUMMARY */
.sb-summary {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 18px 20px;
  margin-bottom: 22px;
}
.sb-summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--text-muted);
}
.sb-summary-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  margin-top: 8px;
  border-top: 1px dashed var(--line);
}
.sb-summary-total-label {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 16px;
  text-transform: uppercase;
}
.sb-summary-total-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 22px;
  color: var(--red-bright);
}

.sb-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.sb-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--red);
  color: #fff;
  border: none;
  padding: 12px 20px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(200, 30, 30, 0.25);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: background 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}
.sb-btn:hover { background: var(--red-bright); box-shadow: 0 4px 18px rgba(255, 59, 48, 0.35); }
.sb-btn:active { transform: translateY(1px); }
.sb-btn.added { background: var(--green); box-shadow: 0 2px 10px rgba(43, 106, 61, 0.3); }
.sb-btn.ghost {
  background: none;
  border: 1px solid var(--line);
  color: var(--text-muted);
  box-shadow: none;
}
.sb-btn.ghost:hover { border-color: var(--red-dim); color: var(--text); box-shadow: none; }

.sb-footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-faint);
}
.sb-footer a { color: inherit; }

@media (max-width: 560px) {
  .sb-title { font-size: 24px; }
  .sb-brand-text h1 { font-size: 18px; }
  .sb-content { padding: 20px 14px 100px; }
  .sb-header { margin: -20px -14px 24px; padding: 16px 14px 14px; }
  .sb-mat-controls { justify-content: space-between; }
  .sb-qty-wrap { margin-left: 0; }
}