/* ───────────────── Variables ───────────────── */
:root {
  --bg:        #f5f0eb;
  --bg-card:   #fffaf5;
  --border:    #e2dcd5;
  --text:      #2c2724;
  --text-soft: #8a7e75;
  --accent:    #8c2d2d;
  --accent-hover: #6e2020;
  --accent-light: rgba(140, 45, 45, 0.08);
  --radius:    10px;
  --radius-lg: 14px;
  --shadow:    0 1px 3px rgba(44, 39, 36, 0.06), 0 6px 24px rgba(44, 39, 36, 0.05);
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Times New Roman", Times, serif;
}

/* ───────────────── Reset ───────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; }

/* ───────────────── Base ───────────────── */
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ───────────────── Page ───────────────── */
.page {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 32px 48px;
}

/* ───────────────── Header ───────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

h1 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.subtitle {
  font-size: 13px;
  color: var(--text-soft);
  margin-top: 2px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

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

/* ───────────────── Buttons ───────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
  transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
}
.btn:active { transform: scale(0.97); }

.btn input[type="file"] { display: none; }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 14px rgba(140, 45, 45, 0.25);
}

.btn-outline {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.btn-subtle {
  background: transparent;
  color: var(--text-soft);
  border: 1px solid var(--border);
}
.btn-subtle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-block { width: 100%; justify-content: center; }

/* ───────────────── Layout ───────────────── */
.layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 24px;
  align-items: start;
}

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

/* ───────────────── Workspace / Canvas ───────────────── */
.workspace {
  display: grid;
  gap: 12px;
}

.canvas-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #eae4dd;
  min-height: 400px;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
}

#textCanvas {
  position: absolute;
  inset: 0;
  mix-blend-mode: normal;
}

#uiCanvas {
  position: absolute;
  inset: 0;
}

.canvas-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: var(--text-soft);
  font-size: 14px;
  pointer-events: none;
}
.canvas-empty svg {
  opacity: 0.35;
}
.canvas-empty.hidden { display: none; }

.hint {
  font-size: 12px;
  color: var(--text-soft);
  letter-spacing: 0.01em;
}

/* ───────────────── Sidebar ───────────────── */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.panel legend {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  padding: 0 4px;
}

/* ───────────────── Form Elements ───────────────── */
label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 13px;
}

.label-text {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-soft);
}

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

textarea,
input[type="number"],
select {
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

textarea:focus,
input[type="number"]:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

textarea {
  resize: vertical;
  min-height: 72px;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6' stroke='%238a7e75' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}

/* Color swatch */
.color-input {
  position: relative;
  width: 100%;
  height: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}

.color-input input[type="color"] {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  padding: 0;
  width: 150%;
  height: 150%;
  position: absolute;
  top: -25%;
  left: -25%;
  cursor: pointer;
}

/* Toggle / checkbox */
.toggle-row {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

input[type="checkbox"] {
  appearance: none;
  width: 36px;
  height: 20px;
  border-radius: 10px;
  background: var(--border);
  position: relative;
  cursor: pointer;
  transition: background 0.2s;
  flex-shrink: 0;
}

input[type="checkbox"]::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

input[type="checkbox"]:checked {
  background: var(--accent);
}

input[type="checkbox"]:checked::after {
  transform: translateX(16px);
}

/* ───────────────── Footer ───────────────── */
.sidebar-footer {
  font-size: 11px;
  color: var(--text-soft);
  text-align: center;
  opacity: 0.6;
}