:root {
  color-scheme: light;
  --bg: #fafafa;
  --panel: #ffffff;
  --panel-alt: #fcfcfc;
  --text: #111111;
  --text-soft: #666666;
  --text-faint: #888888;
  --border: #eaeaea;
  --border-strong: #d7d7d7;
  --chip: #f4f4f4;
  --chip-active: #111111;
  --shadow: 0 24px 80px rgba(17, 17, 17, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-width: thin;
  scrollbar-color: #d0d0d0 transparent;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(0, 0, 0, 0.035), transparent 22%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  color: var(--text);
  font-family: "Geist", "SF Pro Display", "Segoe UI", system-ui, sans-serif;
}

body ::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

body ::-webkit-scrollbar-thumb {
  background: #d8d8d8;
  border: 2px solid transparent;
  border-radius: 999px;
  background-clip: padding-box;
}

body ::-webkit-scrollbar-track {
  background: transparent;
}

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

code {
  font-family: "Geist Mono", "SFMono-Regular", Consolas, monospace;
  background: #f4f4f4;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px 6px;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 28px 22px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  border-right: 1px solid var(--border);
}

.content {
  padding: 28px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 16px;
  min-height: 100vh;
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--text-faint);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-title,
.hero-title {
  margin: 0;
  letter-spacing: -0.05em;
  font-weight: 600;
}

.page-title {
  font-size: 34px;
  line-height: 1;
}

.page-copy {
  margin: 14px 0 18px;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.7;
}

.search-input {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  outline: none;
  background: #ffffff;
  color: var(--text);
  font-size: 14px;
}

.search-input:focus {
  border-color: var(--text);
  box-shadow: 0 0 0 3px rgba(17, 17, 17, 0.06);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 18px;
}

.chip {
  border: 1px solid var(--border);
  background: var(--chip);
  color: var(--text-soft);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  transition: 140ms ease;
}

.chip:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.chip.active {
  background: var(--chip-active);
  border-color: var(--chip-active);
  color: #ffffff;
}

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

.design-card {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 18px;
  padding: 14px;
  cursor: pointer;
  transition: 140ms ease;
}

.design-card:hover,
.design-card.active {
  border-color: var(--text);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.design-name {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.25;
}

.design-category {
  margin: 0 0 8px;
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1.4;
}

.design-brief {
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.6;
}

.design-status {
  display: inline-flex;
  align-items: center;
  margin-top: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  background: #f7f7f7;
  color: var(--text-faint);
  font-size: 11px;
  line-height: 1;
}

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

.hero-card {
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
}

.hero-sub {
  margin: 10px 0 12px;
  color: var(--text-faint);
  font-size: 14px;
}

.hero-brief {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.75;
  max-width: 76ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #ffffff;
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: 140ms ease;
}

.action-button:hover {
  border-color: var(--text);
}

.action-button-primary {
  background: var(--text);
  border-color: var(--text);
  color: #ffffff;
}

.action-button-active {
  border-color: var(--text);
}

.action-button-disabled {
  pointer-events: none;
  color: var(--text-faint);
  background: #f7f7f7;
  border-color: var(--border);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #f7f7f7;
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
}

.preview-card {
  overflow: hidden;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 72vh;
}

.preview-bar {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: var(--panel-alt);
}

.preview-label {
  color: var(--text-faint);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.preview-link {
  color: var(--text-soft);
  font-size: 13px;
}

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

.preview-frame {
  width: 100%;
  height: 100%;
  min-height: 72vh;
  border: 0;
  background: #ffffff;
}

.empty-state {
  padding: 20px 14px;
  color: var(--text-faint);
  font-size: 14px;
  line-height: 1.6;
}

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

  .sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .hero-card {
    grid-template-columns: 1fr;
  }

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