:root {
  --bg: #eff2f6;
  --bg-accent: #dbe4ef;
  --panel: rgba(246, 250, 255, 0.94);
  --panel-strong: #fcfdff;
  --text: #1a1e24;
  --muted: #555e6e;
  --border: rgba(43, 67, 92, 0.16);
  --accent: #1e4b7a;
  --accent-strong: #0a2747;
  --accent-soft: rgba(30, 75, 122, 0.12);
  --danger: #b91c1c;
  --danger-soft: rgba(185, 28, 28, 0.12);
  --success-soft: rgba(21, 128, 61, 0.12);
  --shadow: 0 18px 40px rgba(21, 34, 50, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.8), transparent 28%),
    linear-gradient(180deg, #f0f4f8 0%, var(--bg) 100%);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

button {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  padding: 0.72rem 1.2rem;
}

button:hover:not(:disabled),
a.ghost:hover {
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

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

.ghost {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  padding: 0.72rem 1.2rem;
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 1.75rem 1.15rem;
}

.hero-main {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  flex-shrink: 0;
}

.brand-logo {
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(21, 34, 50, 0.12);
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.eyebrow {
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 0.45rem;
  text-transform: uppercase;
}

.hero h1,
.panel-header h2,
.library-header h2,
.preview-header h2,
.modal-header h2 {
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(1.8rem, 2.5vw, 2.6rem);
  margin: 0;
}

.hero-copy {
  color: var(--muted);
  margin: 0;
  max-width: 40rem;
  text-align: left;
}

.workspace {
  display: grid;
  flex: 1;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  min-height: 0;
  padding: 0 1.25rem 1.25rem;
}

.panel {
  min-height: 0;
  min-width: 0;
}

.panel-editor,
.panel-preview {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel-editor {
  max-width: 50vw;
}

.panel-header,
.library-card,
.preview-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.panel-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 1rem;
  padding: 1.2rem 1.25rem 1rem;
}

.panel-header-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.18rem;
}

.panel-slogan {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0;
  white-space: nowrap;
}

.panel-slogan a {
  color: var(--accent);
}

.panel-slogan a:hover {
  color: var(--accent-strong);
}

.panel-header h2,
.library-header h2,
.preview-header h2 {
  font-size: 1.2rem;
  margin: 0;
}

.panel-header p,
.library-header p,
.preview-header p {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0.2rem 0 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
  gap: 0.75rem;
}

.link-button {
  background: transparent;
  border: 0;
  border-radius: 0;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 0.18rem;
}

.link-button:hover:not(:disabled) {
  color: var(--accent);
  transform: none;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.92rem;
  white-space: nowrap;
}

.checkbox-label input {
  accent-color: var(--accent);
}

#status {
  color: var(--muted);
  font-size: 0.92rem;
  min-width: 8rem;
}

.editor-shell {
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

textarea#markdown,
.editor-shell .EasyMDEContainer,
.editor-shell .CodeMirror,
.editor-shell .CodeMirror-scroll {
  height: 100% !important;
}

textarea#markdown {
  background: transparent;
  border: 0;
  color: var(--text);
  min-height: 100%;
  outline: 0;
  padding: 1rem;
  resize: none;
  width: 100%;
}

.editor-shell .EasyMDEContainer {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.editor-shell .CodeMirror {
  background: transparent;
  color: var(--text);
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 0.97rem;
}

.editor-shell .CodeMirror-scroll {
  min-height: 0;
  overflow: auto !important;
}

.editor-shell .CodeMirror-gutters {
  background: transparent;
  border-right: 1px solid var(--border);
}

.editor-shell .cm-header,
.editor-shell .cm-header-1,
.editor-shell .cm-header-2,
.editor-shell .cm-header-3,
.editor-shell .cm-header-4,
.editor-shell .cm-header-5,
.editor-shell .cm-header-6,
.editor-shell .CodeMirror pre {
  font-size: inherit;
}

.CodeMirror-selected {
  background: rgba(30, 75, 122, 0.16) !important;
}

.cm-s-default .cm-header,
.CodeMirror .cm-header {
  color: #1e4b7a;
  font-weight: 700;
}

.cm-s-default .cm-link,
.CodeMirror .cm-link,
.cm-s-default .cm-url,
.CodeMirror .cm-url,
.cm-s-default .cm-def,
.CodeMirror .cm-def,
.cm-s-default .cm-tag,
.CodeMirror .cm-tag {
  color: #1d4ed8;
}

.cm-s-default .cm-quote,
.CodeMirror .cm-quote,
.cm-s-default .cm-meta,
.CodeMirror .cm-meta,
.cm-s-default .cm-operator,
.CodeMirror .cm-operator {
  color: #6b7280;
}

.cm-s-default .cm-keyword,
.CodeMirror .cm-keyword,
.cm-s-default .cm-property,
.CodeMirror .cm-property,
.cm-s-default .cm-atom,
.CodeMirror .cm-atom {
  color: #7c3aed;
}

.cm-s-default .cm-string,
.CodeMirror .cm-string,
.cm-s-default .cm-string-2,
.CodeMirror .cm-string-2 {
  color: #047857;
}

.cm-s-default .cm-number,
.CodeMirror .cm-number,
.cm-s-default .cm-builtin,
.CodeMirror .cm-builtin,
.cm-s-default .cm-error,
.CodeMirror .cm-error {
  color: var(--danger);
}

.library-card,
.preview-card {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.library-card {
  flex: 0 0 auto;
  max-height: 38vh;
  padding: 0.8rem;
}

.library-header,
.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-bottom: 0.65rem;
}

.library-dropzone {
  border: 1px dashed rgba(30, 75, 122, 0.45);
  border-radius: 18px;
  color: var(--muted);
  cursor: pointer;
  margin-bottom: 0.65rem;
  padding: 0.72rem 0.85rem;
  text-align: center;
}

.library-dropzone:focus,
.library-dropzone.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  outline: 0;
}

.image-library {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  min-height: 0;
  overflow: auto;
  padding-right: 0.1rem;
}

.library-empty {
  border: 1px dashed var(--border);
  border-radius: 18px;
  color: var(--muted);
  display: block;
  padding: 1rem;
  display: none;
}

.library-item {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 0.55rem;
  align-items: center;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
  border-radius: 14px;
  min-width: 0;
  padding: 0.5rem;
}

.library-item.is-asset {
  cursor: grab;
}

.library-item.is-unresolved {
  border-color: rgba(185, 28, 28, 0.26);
  background: rgba(254, 242, 242, 0.8);
  position: relative;
}

.image-library.is-aliasing .library-item.is-unresolved {
  border-style: dashed;
}

.image-library.is-aliasing .library-item.is-unresolved::before,
.image-library.is-aliasing .library-item.is-unresolved::after {
  content: "";
  position: absolute;
  inset: 0.42rem;
  border-radius: 10px;
  pointer-events: none;
}

.image-library.is-aliasing .library-item.is-unresolved::before {
  border: 1px dashed rgba(30, 75, 122, 0.28);
}

.image-library.is-aliasing .library-item.is-unresolved::after {
  inset: auto 0.75rem 0.75rem auto;
  width: 1rem;
  height: 1rem;
  border-right: 2px solid rgba(30, 75, 122, 0.42);
  border-bottom: 2px solid rgba(30, 75, 122, 0.42);
  transform: rotate(-45deg);
}

.library-item.is-drop-target {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(30, 75, 122, 0.16);
  background: rgba(232, 244, 255, 0.92);
}

.library-item.is-drop-target::before {
  border-color: rgba(30, 75, 122, 0.7) !important;
}

.library-item.is-drop-target::after {
  border-color: rgba(30, 75, 122, 0.9) !important;
}

.library-item.is-dragging {
  opacity: 0.55;
}

.library-thumb {
  aspect-ratio: 4 / 3;
  background: linear-gradient(145deg, #f8fafc, #dae4ed);
  border-radius: 10px;
  overflow: hidden;
}

.library-thumb img {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.library-thumb-label {
  align-items: center;
  color: var(--accent);
  display: flex;
  font-size: 1rem;
  font-weight: 700;
  height: 100%;
  justify-content: center;
  letter-spacing: 0.08em;
  width: 100%;
}

.library-body {
  min-width: 0;
}

.library-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.35rem;
}

.library-meta-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.14rem;
}

.library-title {
  display: block;
  font-size: 0.78rem;
  line-height: 1.15;
  overflow-wrap: break-word;
  word-break: break-word;
}

.library-subtitle,
.library-detail {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.2;
  margin: 0.18rem 0 0;
  overflow-wrap: break-word;
  word-break: break-word;
}

.library-detail {
  font-family: "Cascadia Code", "Consolas", monospace;
}

.library-badge {
  border-radius: 999px;
  font-size: 0.58rem;
  font-weight: 700;
  flex-shrink: 0;
  padding: 0.12rem 0.34rem;
  text-transform: uppercase;
}

.library-delete {
  align-items: center;
  align-self: flex-start;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 0.72rem;
  font-weight: 700;
  height: 1.2rem;
  justify-content: center;
  line-height: 1;
  min-width: 1.2rem;
  padding: 0;
}

.library-delete:hover {
  background: var(--danger-soft);
  border-color: rgba(185, 28, 28, 0.18);
  color: var(--danger);
  transform: none;
}

.badge-asset {
  background: var(--success-soft);
  color: #166534;
}

.badge-unresolved {
  background: var(--danger-soft);
  color: var(--danger);
}

.preview-card {
  flex: 1;
  min-height: 0;
  padding: 1rem;
}

.preview-frame-wrap {
  flex: 1;
  min-height: 0;
}

#pdfFrame {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
  height: 100%;
  min-height: 32rem;
  width: 100%;
}

kbd {
  background: rgba(36, 31, 26, 0.08);
  border: 1px solid rgba(36, 31, 26, 0.14);
  border-radius: 8px;
  font-size: 0.84rem;
  padding: 0.1rem 0.35rem;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(36, 31, 26, 0.5);
  padding: 1.5rem;
  z-index: 1000;
}

.modal.open {
  display: flex;
}

.modal-content {
  background: #fffdf9;
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 24px 50px rgba(36, 31, 26, 0.24);
  display: flex;
  flex-direction: column;
  max-height: 80vh;
  width: min(920px, 100%);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.2rem;
}

.modal-header button {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
  padding: 0.45rem 0.7rem;
}

.modal-body {
  color: var(--danger);
  margin: 0;
  overflow: auto;
  padding: 1rem 1.2rem 1.3rem;
  white-space: pre-wrap;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .panel-editor {
    max-width: none;
  }

  .hero {
    align-items: start;
    flex-direction: column;
  }

  .hero-main {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .hero-copy {
    text-align: left;
  }

  .preview-card {
    min-height: 60vh;
  }
}

@media (max-width: 720px) {
  .hero,
  .workspace {
    padding-left: 0.9rem;
    padding-right: 0.9rem;
  }

  .brand-lockup {
    align-items: flex-start;
  }

  .panel-header,
  .library-header,
  .preview-header {
    align-items: start;
    flex-direction: column;
  }

  .panel-header {
    grid-template-columns: 1fr;
  }

  .panel-header-side {
    align-items: flex-start;
  }

  .actions {
    justify-content: start;
  }

  .library-item {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  #pdfFrame {
    min-height: 24rem;
  }
}