:root {
  color: #17221d;
  background: #f4f6f4;
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  --ink: #17221d;
  --muted: #65716b;
  --line: #dce3df;
  --surface: #ffffff;
  --green: #14945f;
  --green-dark: #0c7047;
  --green-soft: #e9f6ef;
  --coral: #c54d48;
  --focus: #2f79b7;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.app-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.header-inner,
.status-inner,
.workspace {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--green);
  color: #fff;
  font-size: 21px;
  font-weight: 800;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 18px;
  line-height: 1.25;
}

.brand-block p {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.header-actions,
.dialog-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  font-weight: 650;
  font-size: 13px;
  line-height: 1;
  text-decoration: none;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}

.button:disabled,
.icon-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.button-primary {
  background: var(--green);
  color: #fff;
}

.button-primary:hover:not(:disabled) {
  background: var(--green-dark);
}

.button-secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.button-secondary:hover:not(:disabled) {
  border-color: #b7c4bd;
  background: #f8faf9;
}

.status-band {
  min-height: 42px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: #edf1ef;
}

.status-inner {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 12px;
}

.status-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #b08232;
}

.status-dot.online {
  background: var(--green);
}

.status-dot.error {
  background: var(--coral);
}

.document-state {
  margin-left: auto;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
}

.document-state.dirty {
  border-color: #d4aa61;
  background: #fff8e9;
  color: #775719;
}

.workspace {
  padding: 30px 0 60px;
}

.tabs {
  display: flex;
  gap: 22px;
  border-bottom: 1px solid var(--line);
}

.tab {
  min-height: 42px;
  padding: 0 2px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  font-weight: 650;
}

.tab.is-active {
  border-bottom-color: var(--green);
  color: var(--ink);
}

.panel {
  display: none;
  padding-top: 26px;
}

.panel.is-active {
  display: block;
}

.metadata-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field span {
  color: #4f5d56;
  font-size: 12px;
  font-weight: 650;
}

.field input {
  width: 100%;
  height: 40px;
  padding: 0 11px;
  border: 1px solid #ccd6d0;
  border-radius: 6px;
  outline: none;
  background: #fff;
  color: var(--ink);
}

.field input:focus,
textarea:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgb(47 121 183 / 12%);
}

.section-heading {
  min-height: 50px;
  margin-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.section-heading > div {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

h2 {
  font-size: 16px;
}

#icon-count {
  color: var(--muted);
  font-size: 12px;
}

.icon-list {
  display: grid;
  gap: 10px;
}

.icon-row {
  min-height: 92px;
  display: grid;
  grid-template-columns: 30px 58px minmax(150px, 0.65fr) minmax(260px, 1.35fr) 104px;
  align-items: center;
  gap: 14px;
  padding: 12px 14px 12px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.row-index {
  color: #8b9791;
  font-size: 12px;
  text-align: center;
}

.icon-preview {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #edf1ef;
}

.icon-preview::before {
  content: "IMG";
  color: #96a19b;
  font-size: 10px;
  font-weight: 700;
}

.icon-preview img {
  width: 100%;
  height: 100%;
  display: block;
  position: relative;
  object-fit: cover;
  background: #edf1ef;
}

.compact-field input {
  height: 38px;
}

.row-actions {
  display: flex;
  justify-content: flex-end;
  gap: 5px;
}

.icon-button {
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: #4d5a54;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}

.icon-button:hover:not(:disabled) {
  border-color: #aab8b1;
  background: #f7f9f8;
}

.icon-button.danger {
  color: var(--coral);
}

.icon-button.danger:hover {
  border-color: #e2b5b2;
  background: #fff4f3;
}

.empty-state {
  min-height: 220px;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 15px;
  border: 1px dashed #bbc7c0;
  border-radius: 8px;
  background: #f8faf9;
  color: var(--muted);
}

.empty-state[hidden] {
  display: none;
}

.json-toolbar {
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--green-dark);
  font-size: 12px;
}

.json-toolbar .invalid {
  color: var(--coral);
}

#json-editor {
  width: 100%;
  min-height: 620px;
  resize: vertical;
  padding: 18px;
  border: 1px solid #ccd6d0;
  border-radius: 8px;
  outline: none;
  background: #16201b;
  color: #e7eee9;
  font: 13px/1.65 "Cascadia Code", Consolas, monospace;
  tab-size: 2;
}

dialog {
  width: min(430px, calc(100% - 32px));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 20px 60px rgb(23 34 29 / 20%);
}

dialog::backdrop {
  background: rgb(18 27 23 / 48%);
}

dialog form {
  padding: 22px;
}

.dialog-heading {
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dialog-error {
  min-height: 20px;
  margin-top: 8px;
  color: var(--coral);
  font-size: 12px;
}

.dialog-actions {
  margin-top: 16px;
  justify-content: flex-end;
}

.toast {
  max-width: min(420px, calc(100% - 32px));
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 10;
  padding: 11px 14px;
  border-radius: 7px;
  background: #17221d;
  color: #fff;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 150ms ease, transform 150ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.sr-only {
  width: 1px;
  height: 1px;
  position: absolute;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

@media (max-width: 820px) {
  .header-inner {
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
    overflow-x: auto;
  }

  .header-actions .button {
    flex: 0 0 auto;
  }

  .metadata-grid {
    grid-template-columns: 1fr;
  }

  .icon-row {
    grid-template-columns: 28px 52px minmax(0, 1fr) 96px;
  }

  .icon-preview {
    width: 52px;
    height: 52px;
  }

  .url-field {
    grid-column: 2 / -1;
  }
}

@media (max-width: 560px) {
  .header-inner,
  .status-inner,
  .workspace {
    width: min(100% - 24px, 1180px);
  }

  .header-actions {
    display: grid;
    grid-template-columns: repeat(3, max-content);
  }

  .button {
    padding: 0 11px;
  }

  .workspace {
    padding-top: 20px;
  }

  .section-heading {
    align-items: flex-start;
  }

  .icon-row {
    grid-template-columns: 42px minmax(0, 1fr) 72px;
    gap: 10px;
    padding: 12px;
  }

  .row-index {
    display: none;
  }

  .icon-preview {
    width: 42px;
    height: 42px;
  }

  .url-field {
    grid-column: 1 / -1;
  }

  .row-actions {
    display: grid;
    grid-template-columns: repeat(3, 24px);
    gap: 0;
  }

  .icon-button {
    width: 24px;
    height: 30px;
  }

  #json-editor {
    min-height: 520px;
    padding: 12px;
    font-size: 12px;
  }
}