:root {
  --color-bg: #fefefe;
  --color-bg2: #f7f7f7;
  --color-text: #000000;
  --color-main: #000000;
  --color-main-op: #ffffff;
  --color-accent: #f4eae0;
  --color-accent-op: #000000;
}
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #000000;
    --color-bg2: #222222;
    --color-text: #f4eae0;
    --color-main: #f4dfc8;
    --color-main-op: #000000;
    --color-accent: #faf6f0;
    --color-accent-op: #222222;
  }
}

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

body {
  font-family: 'Roboto', sans-serif;
  margin: 0;
  color: var(--color-text);
  background-color: var(--color-bg);
}

.title {
  padding: 2rem;
  margin-top: 1rem;
}
.title a {
  color: var(--color-text);
}
.title h2 {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.visuallyhidden {
  position: absolute;
  clip: rect(1px, 1px, 1px, 1px);
  -webkit-clip-path: inset(0px 0px 99.9% 99.9%);
  clip-path: inset(0px 0px 99.9% 99.9%);
  overflow: hidden;
  height: 1px;
  width: 1px;
  padding: 0;
  border: 0;
}

#wrapper {
  width: 100%;
  text-align: center;
  max-width: 500px;
  margin: auto;
}

.form {
  padding: 2rem;
}

/* 파일 선택 버튼 스타일 */
.custom-file-upload {
  display: block;
  padding: 1.5rem; /* 넓은 패딩 */
  background-color: var(--color-main-op); /* 배경색 */
  color: var(--color-main); /* 텍스트 색상 */
  border: 4px dashed var(--color-main); /* 점선 테두리 */
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
}
.custom-file-upload:hover,
.custom-file-upload.dragover {
  background-color: var(--color-accent);
  color: var(--color-accent-op);
  opacity: 0.8;
}

/* input 요소 숨기기 */
#imageInput {
  display: none;
}

@keyframes shake {
  0% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(5deg);
  }
  50% {
    transform: rotate(-5deg);
  }
  75% {
    transform: rotate(3deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

#convertButton {
  display: none;
  width: 100%;
  margin-top: 1rem;
  padding: 1.2rem;
  background-color: var(--color-accent);
  color: var(--color-accent-op);
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1.5rem;
  animation: shake 0.5s infinite;
}
#convertButton:hover {
  background-color: var(--color-main);
  color: var(--color-main-op);
  animation: none; /* Hover 상태에서 흔들림 애니메이션 제거 */
}

#previewContainer {
  margin-top: 1rem;
}

#downloadButtons {
  display: none;
  background-color: var(--color-bg2); /* 배경색 */
  padding: 3rem;
  margin-top: 1rem;
}

#downloadButtons a {
  display: block;
  margin-top: 1rem;
  padding: 1rem;
  background-color: var(--color-main);
  color: var(--color-main-op);
  border: none;
  border-radius: 5px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  font-size: 1rem;
}

#downloadButtons a:first-child {
  margin-top: 0;
}

a:hover {
  opacity: 0.8;
}

p {
  margin: 1rem;
}

@media (prefers-color-scheme: dark) {
  html {
    color-scheme: dark;
  }

  .title img {
    filter: invert(100%);
  }
}