:root {
  --bg: #f5f5f7;
  --surface: rgba(255,255,255,0.06);
  --surface-hover: rgba(255,255,255,0.12);
  --border: rgba(255,255,255,0.08);
  --text: #111111;
  --muted: #6d6d73;
  --active-font: system-ui,sans-serif;
  --radius: 20px;
  --radius-sm: 14px;
  --control-height: 46px;
  --panel-width: 380px;
  --panel-padding: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  min-width: 0;
}

html {
  width: 100%;
  min-height: 100%;
  overflow-x: hidden;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  background: var(--bg);
  color: var(--text);
  font:
    500 14px/1.4
    system-ui,
    sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  padding:
    env(safe-area-inset-top)
    env(safe-area-inset-right)
    calc(76px + env(safe-area-inset-bottom))
    env(safe-area-inset-left);
}

button,
input,
textarea,
select {
  font: inherit;
}

button,
input[type="range"],
.radio,
.font-upload {
  -webkit-tap-highlight-color: transparent;
}

.row,
.row * {
  font-family: var(--active-font) !important;
}

.app {
  width: 100%;
  min-height: 100dvh;
}

.preview-pane {
  width: 100%;
  min-height: calc(100dvh - 100px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding-right: calc(var(--panel-width) + 40px);
}

.controls-pane {
  position: fixed;
  top: 20px;
  right: 20px;
  width: min(
    var(--panel-width),
    calc(100vw - 32px)
  );
  max-height: calc(100dvh - 40px);
  z-index: 9998;
  overflow: hidden auto;
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.18);
  background:
    linear-gradient(
      180deg,
      rgba(255,255,255,0.18),
      rgba(255,255,255,0.08)
    );
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  box-shadow:
    0 0px 0px rgba(0,0,0,0.16),
    inset 0 0px 0 rgba(255,255,255,0.16);
  scrollbar-width: none;
  transition:
    width 180ms ease,
    max-height 180ms ease,
    transform 180ms ease;
}

.controls-pane::-webkit-scrollbar {
  display: none;
}

.controls-pane.minimized {
  width: 210px;
  max-height: 72px;
}

.controls-pane.minimized .controls {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
}

.controls-pane.minimized .top-actions {
  display: none;
}

.top {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: var(--panel-padding);
}

.top-actions {
  flex: 1;
  display: flex;
  gap: 8px;
}

.controls {
  display: grid;
  gap: 12px;
  padding:
    0
    var(--panel-padding)
    var(--panel-padding);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.control,
.row,
.radio,
button,
.font-upload,
.pill {
  border: 1px solid var(--border);
  background: var(--surface);
}

.control,
.row {
  border-radius: var(--radius);
}

.control {
  display: grid;
  gap: 12px;
  padding: 14px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.row {
  padding: 20px;
}

.grid {
  width: 100%;
  display: grid;
  gap: 12px;
}

.top-actions button,
.top-actions .font-upload,
.controls-toggle {
  height: var(--control-height);
}

button,
.font-upload,
.controls-toggle,
.radio {
  appearance: none;
  border-radius: var(--radius-sm);
  transition:
    transform 140ms ease,
    background 140ms ease;
}

button,
.font-upload {
  padding: 0 14px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

button:hover,
.font-upload:hover,
.radio:hover,
.controls-toggle:hover {
  background: var(--surface-hover);
}

button:active,
.font-upload:active,
.radio:active,
.controls-toggle:active {
  transform: scale(0.985);
}

.font-upload {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.font-upload input {
  display: none;
}

.controls-toggle {
  width: 46px;
  min-width: 46px;
  display: grid;
  place-items: center;
  cursor: pointer;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.pill {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.control-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.control label,
.label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.label {
  margin-bottom: 10px;
}

.live-value {
  font-size: 11px;
  font-weight: 700;
}

.slider-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.smart-guide {
  position: absolute;
  top: 50%;
  left: 0;
  height: 8px;
  border-radius: 999px;
  background: #111111;
  opacity: 0.14;
  transform: translateY(-50%);
  pointer-events: none;
}

input[type="range"] {
  width: 100%;
  appearance: none;
  height: 8px;
  border-radius: 999px;
  background: rgba(0,0,0,0.08);
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  border: none;
  background: #111111;
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: none;
  border-radius: 999px;
  background: #111111;
}

.radio-group {
  display: grid;
  gap: 8px;
}

.radio {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  cursor: pointer;
}

.radio span {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
}

.radio input {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.2);
}

.radio input:checked {
  background: #111111;
  border-color: #111111;
}

.editable {
  width: 100%;
  outline: none;
  background: transparent;
  overflow-wrap: anywhere;
  caret-color: #111111;
}

.hero {
  font-size: clamp(72px,12vw,180px);
  line-height: 0.9;
  letter-spacing: -0.08em;
  font-weight: 700;
}

.xl {
  font-size: clamp(36px,5vw,68px);
  line-height: 1;
  letter-spacing: -0.05em;
  font-weight: 600;
}

.lg {
  font-size: clamp(24px,3vw,42px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 600;
}

.md {
  font-size: clamp(16px,2vw,22px);
  line-height: 1.5;
  letter-spacing: -0.015em;
  font-weight: 500;
}

.sm {
  font-size: clamp(13px,1.6vw,16px);
  line-height: 1.7;
  font-weight: 500;
  color: var(--muted);
}

.debug-banner {
  position: fixed;
  inset:
    auto
    0
    0;
  z-index: 9999;
  border-top: 1px solid rgba(0,0,0,0.06);
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.debug-track {
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 14px;
  overflow-x: auto;
  scrollbar-width: none;
  padding:
    0
    14px
    env(safe-area-inset-bottom);
}

.debug-track::-webkit-scrollbar {
  display: none;
}

.debug-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.debug-key,
.debug-value {
  font:
    600 10px/1
    ui-monospace,
    monospace;
}

.debug-key {
  opacity: 0.45;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.debug-divider {
  width: 1px;
  height: 10px;
  background: rgba(0,0,0,0.08);
}

@media (max-width: 1180px) {
  .preview-pane {
    padding-right: 0;
  }

  .controls-pane {
    top: auto;
    right: 14px;
    bottom: 14px;
    left: 14px;
    width: auto;
    max-height: 72dvh;
  }

  .controls-pane.minimized {
    width: auto;
  }
}

@media (max-width: 640px) {
  .top {
    flex-wrap: wrap;
  }

  .top-actions {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2,minmax(0,1fr));
  }

  .row {
    padding: 16px;
  }

  .hero {
    font-size: clamp(52px,14vw,110px);
  }

  .xl {
    font-size: clamp(28px,8vw,56px);
  }
}