:root {
  --bg: #0b1221;
  --card: #0f1724;
  --muted: #9aa4b2;
  --accent: #1e90ff;
  --glass: rgba(255, 255, 255, 0.04);
  --radius: 14px;
  --gap: 16px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

* {
  box-sizing: border-box
}

html,
body,
#root {
  /* height: 100% */
}

body {
  margin: 0;
  background: linear-gradient(180deg, #0035b0, #021440);
  color: #dfe9f2;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: 32px;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.app-header {
  background: var(--glass);
  padding: 18px;
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(2, 6, 23, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.app-header h1 {
  margin: 0;
  font-size: 20px
}

.tagline {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--muted)
}

.controls {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
}

.control-col {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  padding: 18px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.03);
  box-shadow: 0 8px 30px rgba(2, 6, 23, 0.6);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: var(--muted)
}

input[type="color"] {
  width: 56px;
  height: 34px;
  border-radius: 6px;
  border: 0;
  padding: 0
}

input[type="range"] {
  width: 100%
}

select,
input[type="text"],
textarea,
input[type="url"] {
  width: 100%;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  background: transparent;
  color: inherit
}

.row {
  display: flex;
  gap: 10px
}

.btn {
  padding: 8px 12px;
  border-radius: 10px;
  border: 0;
  background: rgba(255, 255, 255, 0.03);
  color: inherit;
  cursor: pointer
}

.btn.primary {
  background: linear-gradient(90deg, var(--accent), #6e45e2);
  box-shadow: 0 6px 18px rgba(30, 144, 255, 0.12)
}

.preview-box {
  border-radius: 14px;
  min-height: 250px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 16px;
}

.preview-overlay {
  position: relative;
  z-index: 10;
  backdrop-filter: blur(6px) saturate(1.2);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.18), rgba(255, 255, 255, 0.02));
  padding: 12px;
  border-radius: 10px;
}

.preview-overlay h2 {
  margin: 0
}

.muted {
  color: var(--muted);
  font-size: 13px
}

.preset-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px
}

.preset-item {
  padding: 8px;
  border-radius: 8px;
  min-width: 84px;
  text-align: center;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.03);
  font-size: 13px
}

.export textarea {
  width: 100%;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  border: 1px solid rgba(255, 255, 255, 0.04)
}

.tools ul {
  margin: 6px 0 0;
  padding-left: 18px;
  color: var(--muted)
}

.hidden {
  display: none
}

.app-footer {
  opacity: 0.8;
  color: var(--muted);
  font-size: 13px;
  text-align: right
}

kbd {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 6px;
  padding: 2px 6px
}