/* ===============================
   기본 레이아웃 (추가)
================================ */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #0e0e11;
  color: white;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  height: 100vh;
  overflow: hidden;
}

.center {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.controls {
  display: flex;
  gap: 20px;
  align-items: center;
}

.loader-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.hidden {
  display: none;
}

#track-info {
  font-size: 14px;
  opacity: 0.8;
}

.footer {
  position: fixed;
  left: 16px;
  bottom: 16px;
  display: flex;
  gap: 8px;
}

.footer button {
  background: #1e1e2e;
  color: white;
  border: none;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
}

/* =========================================================
   🔍 검색창 (From Uiverse.io by satyamchaudharydev)
   ❗❗❗ 그대로 복사 / 수정 없음
========================================================= */

.form {
  --input-text-color: #fff;
  --input-bg-color: #283542;
  --focus-input-bg-color: transparent;
  --text-color: #949faa;
  --active-color: #1b9bee;
  --width-of-input: 200px;
  --inline-padding-of-input: 1.2em;
  --gap: 0.9rem;
}

.form {
  font-size: 0.9rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  width: var(--width-of-input);
  position: relative;
  isolation: isolate;
}

.fancy-bg {
  position: absolute;
  width: 100%;
  inset: 0;
  background: var(--input-bg-color);
  border-radius: 30px;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  box-shadow: rgba(0, 0, 0, 0.16) 0px 1px 4px;
}

label {
  width: 100%;
  padding: 0.8em;
  height: 40px;
  padding-inline: var(--inline-padding-of-input);
  display: flex;
  align-items: center;
}

.search,
.close-btn {
  position: absolute;
}

.search {
  fill: var(--text-color);
  left: var(--inline-padding-of-input);
}

svg {
  width: 17px;
  display: block;
}

.close-btn {
  border: none;
  right: var(--inline-padding-of-input);
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  padding: 0.1em;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--active-color);
  opacity: 0;
  visibility: hidden;
}

.input {
  color: var(--input-text-color);
  width: 100%;
  margin-inline: min(2em, calc(var(--inline-padding-of-input) + var(--gap)));
  background: none;
  border: none;
}

.input:focus {
  outline: none;
}

.input::placeholder {
  color: var(--text-color);
}

.input:focus ~ .fancy-bg {
  border: 1px solid var(--active-color);
  background: var(--focus-input-bg-color);
}

.input:focus ~ .search {
  fill: var(--active-color);
}

.input:valid ~ .close-btn {
  opacity: 1;
  visibility: visible;
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
  -webkit-transition: "color 9999s ease-out, background-color 9999s ease-out";
  -webkit-transition-delay: 9999s;
}

/* =========================================================
   ▶️ 재생 ON / OFF 토글 (From Uiverse.io by MuhammadHasann)
   ❗❗❗ 그대로 복사 / 수정 없음
========================================================= */

.toggle-cont {
  width: 100px;
  height: 50px;
  border-radius: 9999px;
}

.toggle-cont .toggle-input {
  display: none;
}

.toggle-cont .toggle-label {
  cursor: pointer;
  position: relative;
  display: inline-block;
  padding: 6px;
  width: 100%;
  height: 100%;
  background: #272727;
  border-radius: 9999px;
  box-sizing: content-box;
  box-shadow: 0px 0px 16px -8px #fefefe;
}

.toggle-cont .toggle-label .cont-label-play {
  position: relative;
  width: 50px;
  aspect-ratio: 1 / 1;
  background: #5e5e5e;
  border-radius: 9999px;
  transition: all 0.5s cubic-bezier(1, 0, 0, 1);
}

.toggle-cont .toggle-input:checked + .toggle-label .cont-label-play {
  background: #f43f5e;
  transform: translateX(50px);
}

.toggle-cont .toggle-label .label-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: inline-block;
  width: 24px;
  aspect-ratio: 1 / 1;
  background: #fefefe;
  border-radius: 4px;
  clip-path: polygon(25% 0, 75% 50%, 25% 100%, 25% 51%);
  transition: all 0.5s cubic-bezier(1, 0, 0, 1);
}

.toggle-cont .toggle-input:checked + .toggle-label .label-play {
  width: 20px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* =========================================================
   🔄 재생 중 로더 (From Uiverse.io by andrew-manzyk)
   ❗❗❗ 그대로 복사 / 수정 없음
========================================================= */

.loader {
  --color-one: #ffbf48;
  --color-two: #be4a1d;
  --color-three: #ffbf4780;
  --color-four: #bf4a1d80;
  --color-five: #ffbf4740;
  --time-animation: 2s;
  --size: 1;
  position: relative;
  border-radius: 50%;
  transform: scale(var(--size));
  box-shadow:
    0 0 25px 0 var(--color-three),
    0 20px 50px 0 var(--color-four);
  animation: colorize calc(var(--time-animation) * 3) ease-in-out infinite;
}

.loader::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border-top: solid 1px var(--color-one);
  border-bottom: solid 1px var(--color-two);
  background: linear-gradient(180deg, var(--color-five), var(--color-four));
  box-shadow:
    inset 0 10px 10px 0 var(--color-three),
    inset 0 -10px 10px 0 var(--color-four);
}

.loader .box {
  width: 100px;
  height: 100px;
  background: linear-gradient(
    180deg,
    var(--color-one) 30%,
    var(--color-two) 70%
  );
  mask: url(#clipping);
  -webkit-mask: url(#clipping);
}

.loader svg {
  position: absolute;
}

.loader svg #clipping {
  filter: contrast(15);
  animation: roundness calc(var(--time-animation) / 2) linear infinite;
}

.loader svg #clipping polygon {
  filter: blur(7px);
}

.loader svg #clipping polygon:nth-child(1) {
  transform-origin: 75% 25%;
  transform: rotate(90deg);
}

.loader svg #clipping polygon:nth-child(2) {
  transform-origin: 50% 50%;
  animation: rotation var(--time-animation) linear infinite reverse;
}

.loader svg #clipping polygon:nth-child(3) {
  transform-origin: 50% 60%;
  animation: rotation var(--time-animation) linear infinite;
  animation-delay: calc(var(--time-animation) / -3);
}

.loader svg #clipping polygon:nth-child(4) {
  transform-origin: 40% 40%;
  animation: rotation var(--time-animation) linear infinite reverse;
}

.loader svg #clipping polygon:nth-child(5) {
  transform-origin: 40% 40%;
  animation: rotation var(--time-animation) linear infinite reverse;
  animation-delay: calc(var(--time-animation) / -2);
}

.loader svg #clipping polygon:nth-child(6) {
  transform-origin: 60% 40%;
  animation: rotation var(--time-animation) linear infinite;
}

.loader svg #clipping polygon:nth-child(7) {
  transform-origin: 60% 40%;
  animation: rotation var(--time-animation) linear infinite;
  animation-delay: calc(var(--time-animation) / -1.5);
}

@keyframes rotation {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes roundness {
  0% { filter: contrast(15); }
  20% { filter: contrast(3); }
  40% { filter: contrast(3); }
  60% { filter: contrast(15); }
  100% { filter: contrast(15); }
}

@keyframes colorize {
  0% { filter: hue-rotate(0deg); }
  20% { filter: hue-rotate(-30deg); }
  40% { filter: hue-rotate(-60deg); }
  60% { filter: hue-rotate(-90deg); }
  80% { filter: hue-rotate(-45deg); }
  100% { filter: hue-rotate(0deg); }
}

.center {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.controls {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  transition: transform 0.6s ease;
}

.loader-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

#track-info {
  margin-top: 12px;
  color: #fff;
  font-size: 14px;
}

.hidden {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

/* 로그인/회원가입 모달 */
.auth-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.auth-modal.hidden {
  display: none;
}

.auth-container {
  background: #1e1e2e;
  padding: 32px;
  border-radius: 16px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: center;
  color: #fff;
}

.auth-container input {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: none;
  margin-bottom: 8px;
  background: #2c2c3a;
  color: #fff;
}

.auth-container button {
  padding: 10px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  background: #1b9bee;
  color: white;
  font-weight: bold;
}

.oauth-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #fff;
  color: #000;
}

.auth-switch {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
}