@font-face {
  font-family: 'Space Mono';
  src: local('Space Mono');
}

:root {
  --bg: #0a0a0a;
  --fg: #f2f2f0;
  --fg-dim: #6b6b6b;
  --fg-dimmer: #3a3a3a;
  --line: #1c1c1c;
  --line-strong: #2c2c2c;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
}

body {
  font-family: 'Space Mono', ui-monospace, 'SF Mono', Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.02em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

button {
  font-family: inherit;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
}

input, select, textarea {
  font-family: inherit;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--line-strong);
  padding: 10px 12px;
  font-size: 12px;
  letter-spacing: 0.02em;
}

input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible {
  outline: 1px solid var(--fg);
  outline-offset: 2px;
}

::selection {
  background: var(--fg);
  color: var(--bg);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--fg);
  color: var(--bg);
  padding: 8px 12px;
  z-index: 200;
}
.skip-link:focus {
  left: 8px;
  top: 8px;
}

/* ---------- Header ---------- */

.mark {
  position: fixed;
  top: 22px;
  left: 24px;
  font-size: 14px;
  letter-spacing: 0.04em;
  z-index: 60;
}

.cart-icon {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 60;
  opacity: 0.85;
  text-decoration: none;
}
.cart-icon:hover { opacity: 1; }

.cart-badge {
  position: absolute;
  top: -6px;
  right: -8px;
  background: var(--fg);
  color: var(--bg);
  font-size: 9px;
  font-weight: bold;
  min-width: 14px;
  height: 14px;
  line-height: 14px;
  text-align: center;
  border-radius: 7px;
  padding: 0 4px;
  letter-spacing: 0;
}

/* ---------- Product grid ---------- */

.grid-wrap {
  flex: 1;
  padding: 100px 24px 120px;
  max-width: 1760px;
  margin: 0 auto;
  width: 100%;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  column-gap: 24px;
  row-gap: 64px;
}

@media (max-width: 1400px) {
  .product-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 900px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); column-gap: 14px; row-gap: 40px; }
}

.product-card {
  display: block;
}

.product-media {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: grayscale(1) contrast(1.02);
  transition: transform 0.4s ease;
}

.product-card:hover .product-media img {
  transform: scale(1.03);
}

.product-media.empty {
  border: 1px dashed var(--line-strong);
}

.product-media.empty::after {
  content: 'NO IMAGE';
  color: var(--fg-dimmer);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.product-meta {
  text-align: center;
  margin-top: 16px;
}

.product-name {
  font-size: 12px;
  color: var(--fg);
  margin-top: 4px;
}

.product-code {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  margin-top: 4px;
}

.product-price {
  font-size: 14px;
  color: var(--fg);
  margin-top: 6px;
  font-weight: bold;
}

.empty-state {
  text-align: center;
  padding: 140px 20px;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
  font-size: 12px;
}

.loading-state {
  text-align: center;
  padding: 140px 20px;
  color: var(--fg-dimmer);
  letter-spacing: 0.08em;
  font-size: 11px;
}

/* ---------- Product detail ---------- */

.detail-wrap {
  flex: 1;
  padding: 100px 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

@media (max-width: 800px) {
  .detail-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.detail-images {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.detail-image {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--line);
}

.detail-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: grayscale(1) contrast(1.02);
}

.detail-image.empty {
  color: var(--fg-dimmer);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.detail-thumbs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.detail-thumb {
  width: 52px;
  height: 52px;
  border: 1px solid var(--line-strong);
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  background: none;
}

.detail-thumb.active {
  border-color: var(--fg);
}

.detail-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  display: block;
}

.detail-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.detail-info .back-link {
  align-self: flex-start;
  margin-bottom: 16px;
}

.detail-name {
  font-size: 18px;
  color: var(--fg);
  letter-spacing: 0.04em;
}

.detail-code {
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
}

.detail-price {
  font-size: 22px;
  color: var(--fg);
  font-weight: bold;
  margin-top: 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.detail-meta {
  margin-top: 8px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 20px;
  font-size: 11px;
}

.detail-meta dt {
  color: var(--fg-dimmer);
  letter-spacing: 0.08em;
}

.detail-meta dd {
  color: var(--fg);
  margin: 0;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 24px;
  text-align: center;
  color: var(--fg-dimmer);
  font-size: 10px;
  letter-spacing: 0.1em;
  flex-shrink: 0;
}

.site-footer a {
  color: var(--fg-dimmer);
}
.site-footer a:hover {
  color: var(--fg-dim);
}

/* ---------- Cart ---------- */

.cart-wrap {
  flex: 1;
  padding: 100px 24px 80px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.cart-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 20px;
  margin-bottom: 40px;
}

.cart-title {
  font-size: 14px;
  letter-spacing: 0.06em;
}

.cart-items {
  display: flex;
  flex-direction: column;
}

.cart-row {
  display: grid;
  grid-template-columns: 64px 1fr 80px 100px 80px 30px;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

@media (max-width: 640px) {
  .cart-row {
    grid-template-columns: 48px 1fr 60px;
    grid-template-areas:
      "thumb info price"
      "thumb qty subtotal"
      "remove remove remove";
    gap: 8px 12px;
  }
  .cart-row-thumb { grid-area: thumb; }
  .cart-row-info { grid-area: info; }
  .cart-row-price { grid-area: price; text-align: right; }
  .cart-row-qty { grid-area: qty; }
  .cart-row-subtotal { grid-area: subtotal; text-align: right; }
  .cart-row-remove { grid-area: remove; text-align: center; padding: 8px; }
}

.cart-row-thumb img,
.cart-row-thumb .thumb-empty {
  width: 64px;
  height: 64px;
  object-fit: contain;
}
.cart-row-thumb .thumb-empty {
  border: 1px dashed var(--line-strong);
  display: block;
}

.cart-row-name {
  font-size: 12px;
  color: var(--fg);
}

.cart-row-code {
  font-size: 10px;
  color: var(--fg-dim);
  margin-top: 2px;
}

.cart-row-price {
  font-size: 11px;
  color: var(--fg-dim);
}

.cart-row-qty {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qty-btn {
  width: 24px;
  height: 24px;
  border: 1px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--fg-dim);
  transition: border-color 0.15s;
}
.qty-btn:hover {
  border-color: var(--fg-dim);
  color: var(--fg);
}

.qty-value {
  font-size: 12px;
  min-width: 20px;
  text-align: center;
}

.cart-row-subtotal {
  font-size: 13px;
  color: var(--fg);
  font-weight: bold;
}

.cart-row-remove {
  font-size: 16px;
  color: var(--fg-dim);
  cursor: pointer;
  border: none;
  background: none;
  padding: 4px;
}
.cart-row-remove:hover {
  color: var(--fg);
}

.cart-summary {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.cart-total {
  font-size: 18px;
  letter-spacing: 0.04em;
  display: flex;
  gap: 24px;
}

.cart-total span:last-child {
  font-weight: bold;
}

.cart-not-total {
  position: relative;
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--fg-dimmer);
  cursor: help;
  border-bottom: 1px dotted var(--fg-dimmer);
}

.cart-tooltip {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  bottom: 100%;
  right: 0;
  margin-bottom: 6px;
  background: var(--fg);
  color: var(--bg);
  font-size: 9px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  padding: 6px 10px;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.cart-not-total:hover .cart-tooltip {
  visibility: visible;
  opacity: 1;
}

.cart-summary .btn {
  max-width: 280px;
  margin-top: 16px;
}

.add-cart-btn {
  margin-top: 16px;
}

/* ---------- Color / Size options ---------- */

.option-group {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.option-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  margin-bottom: 8px;
}

.option-options {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.option-btn {
  border: 1px solid var(--line-strong);
  padding: 8px 14px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--fg-dim);
  transition: border-color 0.15s, color 0.15s;
}

.option-btn:hover {
  border-color: var(--fg-dim);
  color: var(--fg);
}

.option-btn.active {
  border-color: var(--fg);
  color: var(--fg);
}

.size-unit-label {
  font-size: 9px;
  color: var(--fg-dimmer);
  margin-left: 2px;
}

.option-btn.active .size-unit-label {
  color: var(--fg-dim);
}

.detail-msg {
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--fg-dim);
  min-height: 14px;
}

/* ---------- Admin size rows ---------- */

.size-row {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}

.size-row .size-label {
  flex: 1;
}

.size-row select {
  padding: 10px 8px;
  font-size: 12px;
  min-width: 70px;
}

.size-row .size-remove {
  width: 28px;
  height: 28px;
  padding: 0;
  font-size: 11px;
  line-height: 28px;
  text-align: center;
  flex-shrink: 0;
}

.btn-sm {
  width: auto;
  padding: 8px 14px;
  font-size: 10px;
}

.opt-note {
  font-weight: normal;
  color: var(--fg-dimmer);
}

/* ---------- Login ---------- */

.login-form {
  max-width: 360px;
}

.login-form .btn {
  margin-top: 8px;
}

.logout-link {
  cursor: pointer;
}

/* ---------- Admin ---------- */

.admin-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 100px 24px 100px;
}

.admin-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-title {
  font-size: 14px;
  letter-spacing: 0.06em;
}

.admin-sub {
  color: var(--fg-dimmer);
  font-size: 10px;
  letter-spacing: 0.08em;
  margin-top: 6px;
}

.back-link {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}
.back-link:hover { color: var(--fg); border-color: var(--fg-dim); }

.admin-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 60px;
  align-items: start;
}

@media (max-width: 860px) {
  .admin-grid { grid-template-columns: 1fr; }
}

.panel-label {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--fg-dimmer);
  margin-bottom: 18px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  margin-bottom: 8px;
}

.field input,
.field select {
  width: 100%;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.dropzone {
  border: 1px dashed var(--line-strong);
  padding: 20px;
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--fg-dimmer);
  cursor: pointer;
  position: relative;
  margin-bottom: 16px;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dropzone.has-image {
  padding: 0;
  border-style: solid;
}
.dropzone img {
  width: 100%;
  max-height: 220px;
  object-fit: contain;
  filter: grayscale(1);
}
.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.dropzone:hover { border-color: var(--fg-dim); color: var(--fg-dim); }

.image-previews {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.img-preview {
  position: relative;
  width: 72px;
  height: 72px;
  border: 1px solid var(--line-strong);
  overflow: hidden;
}

.img-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
}

.img-remove {
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: var(--fg);
  color: var(--bg);
  border: none;
  font-size: 12px;
  line-height: 18px;
  text-align: center;
  cursor: pointer;
  opacity: 0.8;
}
.img-remove:hover { opacity: 1; }

.btn {
  display: inline-block;
  width: 100%;
  text-align: center;
  padding: 13px 16px;
  border: 1px solid var(--fg);
  font-size: 10px;
  letter-spacing: 0.1em;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover {
  background: var(--fg);
  color: var(--bg);
}

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--fg-dim);
}
.btn-ghost:hover {
  background: var(--fg-dim);
  color: var(--bg);
  border-color: var(--fg-dim);
}

.btn-row {
  display: flex;
  gap: 10px;
}
.btn-row .btn { width: auto; flex: 1; }

.form-msg {
  font-size: 10px;
  letter-spacing: 0.06em;
  margin-top: 12px;
  min-height: 14px;
}
.form-msg.ok { color: var(--fg); }
.form-msg.err { color: var(--fg-dim); }

.list-head {
  display: grid;
  grid-template-columns: 56px 1fr 120px 100px 90px 140px;
  gap: 12px;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--fg-dimmer);
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
  margin-bottom: 4px;
}

.list-row {
  display: grid;
  grid-template-columns: 56px 1fr 120px 100px 90px 140px;
  gap: 12px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}

@media (max-width: 700px) {
  .list-head { display: none; }
  .list-row {
    grid-template-columns: 56px 1fr;
    grid-template-areas:
      "thumb name"
      "thumb brand"
      "thumb code"
      "actions actions";
    row-gap: 4px;
  }
  .list-row .col-thumb { grid-area: thumb; }
  .list-row .col-name { grid-area: name; }
  .list-row .col-brand { grid-area: brand; }
  .list-row .col-code { grid-area: code; }
  .list-row .col-price { display: none; }
  .list-row .col-actions { grid-area: actions; margin-top: 8px; }
}

.col-thumb img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  filter: grayscale(1);
}
.col-thumb .thumb-empty {
  width: 56px;
  height: 56px;
  border: 1px dashed var(--line-strong);
}

.col-name .name-main {
  color: var(--fg);
}
.col-name .name-sub {
  color: var(--fg-dimmer);
  font-size: 10px;
  margin-top: 3px;
}

.col-code, .col-price, .col-brand {
  color: var(--fg-dim);
  font-size: 11px;
}

.col-actions {
  display: flex;
  gap: 14px;
  justify-content: flex-end;
}

.col-actions button {
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--fg-dim);
  border-bottom: 1px solid transparent;
}
.col-actions button:hover {
  color: var(--fg);
  border-bottom-color: var(--fg-dim);
}
.col-actions button.danger:hover {
  color: var(--fg);
  border-bottom-color: var(--fg);
}

.empty-admin {
  padding: 60px 0;
  text-align: center;
  color: var(--fg-dimmer);
  font-size: 11px;
  letter-spacing: 0.08em;
}

/* ---------- Popup ---------- */

.popup {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  padding: 16px;
  display: none;
  align-items: center;
  justify-content: center;
}

.popup.open {
  display: flex;
}

.popup-box {
  background: var(--bg);
  border: 1px solid var(--line-strong);
  width: 100%;
  max-width: 380px;
  padding: 24px;
  position: relative;
}

.popup-x {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 18px;
  color: var(--fg-dim);
  cursor: pointer;
  background: none;
  border: none;
  line-height: 1;
}
.popup-x:hover { color: var(--fg); }

.popup-title {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  margin-bottom: 20px;
}

.popup-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  letter-spacing: 0.04em;
  margin: 16px 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}