/* 이미지 회전·뒤집기 전용 스타일 */

nav { max-width: 800px; }
main { max-width: 800px; }

/* 드롭존 */
.dropzone {
  display: block;
  cursor: pointer;
  margin-bottom: 1rem;
  padding: 2.2rem 1rem;
  background: var(--surface);
  border: 2px dashed var(--border);
  border-radius: 14px;
  text-align: center;
  transition: all 0.15s;
}
.dropzone:hover,
.dropzone:focus,
.dropzone.drag-over {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.04);
  outline: none;
}
.dropzone[hidden] { display: none; }

.dropzone-content svg {
  color: var(--text-sub);
  margin-bottom: 0.85rem;
}
.dropzone-content p {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
  color: var(--text);
}
.dropzone-content .hint {
  font-size: 0.78rem;
  color: var(--text-sub);
  margin-bottom: 0;
}

.editor {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.editor[hidden] { display: none; }

/* 빠른 버튼 */
.quick-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.65rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.qbtn {
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.15s;
}
.qbtn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(102, 126, 234, 0.04);
}
.qbtn.reset {
  margin-left: auto;
  border-style: dashed;
  color: var(--text-sub);
}
.qbtn.reset:hover {
  border-style: solid;
  border-color: var(--error);
  color: var(--error);
  background: rgba(239, 68, 68, 0.04);
}

/* 자유 각도 슬라이더 */
.angle-row {
  display: grid;
  grid-template-columns: 90px 1fr 60px;
  gap: 0.6rem;
  align-items: center;
  padding: 0.7rem 0.95rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.angle-row label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-sub);
}

#angle {
  accent-color: var(--primary);
  min-width: 0;
}

.num {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  text-align: right;
}

/* 캔버스 */
.canvas-wrap {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem;
  text-align: center;
  background-image:
    linear-gradient(45deg, var(--border) 25%, transparent 25%),
    linear-gradient(-45deg, var(--border) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--border) 75%),
    linear-gradient(-45deg, transparent 75%, var(--border) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  overflow: hidden;
}

#canvas {
  max-width: 100%;
  max-height: 480px;
  height: auto;
  display: inline-block;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.btn-clear {
  position: absolute;
  top: 0.45rem;
  right: 0.45rem;
  width: 32px;
  height: 32px;
  font-size: 1.1rem;
  background: var(--surface);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-clear:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--error);
  color: var(--error);
}

/* 액션 */
.actions {
  display: flex;
  gap: 0.55rem;
}

.btn-primary {
  flex: 1;
  padding: 0.7rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
  min-height: 48px;
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

@media (max-width: 600px) {
  #canvas { max-height: 360px; }
  .angle-row { grid-template-columns: 70px 1fr 50px; }
}

@media (max-width: 480px) {
  .qbtn { font-size: 0.78rem; padding: 0.4rem 0.65rem; }
  .actions { flex-direction: column; }
  .btn-primary { width: 100%; }
}