:root {
  --dark-red: #980000ff;
  --light-red: #c00000ff;
  --black: #000000ff;
  --white: #ffffffff;
  --yellow-white: #78634217;
  --panel-width: 230px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  border-top: 12px solid var(--black);
  border-right: 12px solid var(--black);
  border-bottom: 12px solid var(--black);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--white);
  background: radial-gradient(circle at 20% 20%, #fefaf1, #f2ebdc 60%, #ede5d3);
}

.layout {
  display: grid;
  grid-template-columns: var(--panel-width) 1fr;
  width: 100%;
  height: 100%;
}

.toolbar {
  border-right: 5px solid var(--dark-red);
  background: var(--black);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
}

.toolbar img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.brand-logo {
  width: 100%;
  max-width: 180px;
  height: auto;
  object-fit: contain;
  margin: 0 auto;
  display: block;
}

.tool-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tool-label {
  font-size: 0.83rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tool-btn {
  background: var(--black);
  color: var(--white);
  border: 2px solid var(--dark-red);
  font-size: 0.95rem;
  padding: 8px 14px 8px 8px; /* Increased right padding */
  cursor: pointer;
  border-radius: 8px;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  transition: all 0.2s;
  gap: 12px;
}

.tool-icon {
  width: 20px;
  height: 20px;
  filter: invert(1);
}

.tool-btn.active {
  background: var(--dark-red);
  border-color: var(--light-red);
}

.tool-btn.clear {
  border-color: var(--light-red);
}

.tool-btn.clear:hover {
  background: var(--light-red);
}

.value-label {
  font-size: 0.88rem;
  color: var(--white);
}

.canvas-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  margin: 12px 12px 12px 0;
}

#drawCanvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
  border-radius: 24px;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  background:
    linear-gradient(45deg, var(--yellow-white) 25%, transparent 25%) -8px 0 / 16px 16px,
    linear-gradient(-45deg, var(--yellow-white) 25%, transparent 25%) -8px 0 / 16px 16px,
    linear-gradient(45deg, transparent 75%, var(--yellow-white) 75%) -8px 0 / 16px 16px,
    linear-gradient(-45deg, transparent 75%, var(--yellow-white) 75%) -8px 0 / 16px 16px,
    #faf6ec;
}

/* Custom styles for inputs */
input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 100%;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  background: var(--black);
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: 2px solid var(--dark-red);
  border-radius: 8px;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  background: transparent;
  padding: 8px 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: var(--light-red);
  cursor: pointer;
  margin-top: -8px;
}

input[type="range"]::-webkit-slider-runnable-track {
  width: 100%;
  height: 6px;
  cursor: pointer;
  background: var(--light-red);
  border-radius: 3px;
}

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

  .toolbar {
    border-right: none;
    border-bottom: 1px solid #ffffff;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .brand {
    width: 68px;
    height: 68px;
  }
}