:root {
  --bg: #111111;
  --panel: #1b1b1b;
  --panel-2: #242424;
  --text: #f6efe7;
  --muted: #b7aaa0;
  --accent: #d8a24a;
  --line: rgba(255,255,255,0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(216,162,74,0.14), transparent 34rem),
    radial-gradient(circle at bottom right, rgba(128,33,33,0.12), transparent 30rem),
    linear-gradient(135deg, #0d0d0d, #181818);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) 410px;
  gap: 24px;
  width: min(1220px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0;
}

.preview-panel,
.control-panel {
  min-width: 0;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 5vw, 46px);
  letter-spacing: -0.04em;
}

h1 span {
  color: var(--accent);
}

h1 em {
  font-size: 15px;
  color: var(--muted);
  font-style: normal;
  letter-spacing: 0;
}

p {
  margin: 6px 0 0;
  color: var(--muted);
}

.top-actions {
  display: flex;
  gap: 10px;
}

.canvas-wrap {
  display: grid;
  place-items: center;
  min-height: 72vh;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255,255,255,0.035);
  box-shadow: 0 24px 80px rgba(0,0,0,0.35);
  touch-action: none;
}

canvas {
  width: min(400px, 82vw);
  height: auto;
  max-height: 72vh;
  border-radius: 14px;
  box-shadow: 0 24px 70px rgba(0,0,0,0.55);
  background: #202020;
  cursor: grab;
  touch-action: none;
}

canvas:active {
  cursor: grabbing;
}

.hint {
  text-align: center;
  font-size: 13px;
}

.control-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.control-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(27,27,27,0.88);
  box-shadow: 0 16px 40px rgba(0,0,0,0.22);
}

.control-card h2 {
  margin: 0 0 12px;
  font-size: 16px;
}

label {
  display: grid;
  gap: 7px;
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

input,
select,
textarea,
button {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: #101010;
  font: inherit;
}

input,
select,
textarea {
  padding: 10px 11px;
}

textarea {
  resize: vertical;
}

input[type="range"],
input[type="color"] {
  padding: 0;
}

input[type="color"] {
  height: 38px;
}

.file-label input {
  margin-top: 8px;
}

.primary-btn,
.secondary-btn,
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  padding: 11px 14px;
  font-weight: 750;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.primary-btn {
  width: auto;
  min-width: 140px;
  border-color: rgba(216,162,74,0.45);
  background: linear-gradient(135deg, #d8a24a, #9c6522);
  color: #17110a;
}

.secondary-btn {
  width: auto;
  min-width: 90px;
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

button:hover {
  transform: translateY(-1px);
  border-color: rgba(216,162,74,0.45);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.preset-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

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

  .top-actions {
    width: 100%;
  }

  .primary-btn,
  .secondary-btn {
    width: 100%;
  }

  .canvas-wrap {
    min-height: auto;
    padding: 14px;
  }
}