/* style.css 전체 교체 */
:root {
  --primary-color: #ffffff;
  --bg-color: #000000;
  --accent-color: #ff0055;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none; /* 텍스트 선택 방지 */
  -webkit-tap-highlight-color: transparent;
}

body, html {
  width: 100%;
  height: 100%;
  background-color: var(--bg-color);
  overflow: hidden; /* 스크롤바 없애기 */
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* 앱 전체를 감싸는 통 */
#app-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: black;
}

/* 1. 원본 웹캠 (반드시 숨김 처리) */
#webcam {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
  z-index: -1;
}

/* 2. 필터 결과 화면 (화면 꽉 채우기) */
#output_canvas {
  width: 100%;
  height: 100%;
  object-fit: cover; /* 비율 유지하며 꽉 채우기 */
  display: block;
  transition: filter 0.2s ease; /* 필터 변경 시 부드럽게 */
}

/* 3. 상단 버튼 (카메라 전환, 언어, 설치) */
#top-bar {
  position: absolute;
  top: 20px;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between; /* 양쪽 끝으로 정렬 */
  align-items: center;
  padding: 0 20px;
  z-index: 100;
  box-sizing: border-box;
  /* 노치 디자인 대응 */
  padding-top: max(20px, env(safe-area-inset-top)); 
}

/* 언어 버튼 그룹 */
#lang-group {
  display: flex;
  gap: 8px;
  background: rgba(0,0,0,0.5);
  padding: 5px 10px;
  border-radius: 20px;
}

.lang-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  padding: 0;
  filter: grayscale(100%); /* 기본은 흑백 */
  transition: transform 0.2s, filter 0.2s;
}

.lang-btn:hover, .lang-btn.active {
  transform: scale(1.2);
  filter: grayscale(0%); /* 선택되면 컬러 */
}

/* 설치 버튼 스타일 */
#install-btn {
  background: linear-gradient(45deg, #ff0055, #ff5500);
  color: white;
  border: none;
  padding: 8px 15px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  animation: pulse 2s infinite; /* 깜빡이는 효과 */
  margin-right: 10px;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* 카메라 전환 버튼 */
#switch-camera-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.4);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-size: 24px;
  cursor: pointer;
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 4. 하단 컨트롤 영역 */
#ui-layer {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding-bottom: 30px;
  padding-bottom: max(30px, env(safe-area-inset-bottom));
  
  /* 배경을 어둡게 그라데이션 */
  background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
  
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  z-index: 100;
}

/* [NEW] 확장된 컨트롤 박스 (스크롤 가능) */
#controls-container {
  width: 85%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.expanded-controls {
    background: rgba(0, 0, 0, 0.6);
    padding: 15px;
    border-radius: 20px;
    backdrop-filter: blur(5px);
    max-height: 50vh; /* 화면 절반까지만 차지 */
    overflow-y: auto; /* 내용 많으면 스크롤 */
    border: 1px solid rgba(255,255,255,0.1);
}

/* 섹션 구분 */
.control-section {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.control-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.section-title {
    display: block;
    color: #ddd;
    font-size: 13px;
    font-weight: bold;
    margin-bottom: 8px;
    text-transform: uppercase;
    opacity: 0.8;
}

/* 기본 슬라이더 그룹 */
.control-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
  font-weight: 500;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
  margin-bottom: 8px;
}

.control-group span {
  width: 60px;
  font-size: 14px;
}

/* 슬라이더 디자인 */
input[type=range] {
  flex: 1;
  margin-left: 10px;
  height: 4px;
  border-radius: 2px;
  appearance: none;
  background: rgba(255, 255, 255, 0.3);
  outline: none;
}

input[type=range]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* [NEW] 버튼 그룹 스타일 (필터, 액세서리) */
.button-group, .color-picker-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap; /* 줄바꿈 허용 */
}

.filter-btn, .acc-btn {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.1);
    color: white;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 12px;
    cursor: pointer;
    transition: 0.2s;
}

.filter-btn.active, .acc-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    font-weight: bold;
    box-shadow: 0 0 8px rgba(255, 0, 85, 0.4);
}

/* [NEW] 컬러 피커 스타일 (립스틱) */
.color-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.3);
    cursor: pointer;
    transition: 0.2s;
    position: relative;
}
.color-btn.active {
    border-color: white;
    transform: scale(1.15);
    box-shadow: 0 0 10px rgba(255,255,255,0.5);
}

/* [NEW] 잠금 아이콘 표시 */
.locked::after {
    content: '🔒';
    font-size: 10px;
    margin-left: 4px;
}
.color-btn.locked::after {
    content: '🔒';
    font-size: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.4);
    border-radius: 50%;
}

/* 촬영 버튼 */
#capture-btn {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: transparent;
  border: 4px solid white;
  position: relative;
  cursor: pointer;
  margin-top: 5px;
}

#capture-btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 54px;
  height: 54px;
  background-color: white;
  border-radius: 50%;
  transition: 0.1s;
}

#capture-btn:active::after {
  transform: translate(-50%, -50%) scale(0.9);
  background-color: #ddd;
}

/* [광고 팝업 스타일] */
#ad-modal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ad-content {
    background: white;
    width: 90%;
    max-width: 350px;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.ad-content h3 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 18px;
}

.ad-content p {
    color: #666;
    margin-bottom: 20px;
    font-size: 14px;
}

.ad-box {
    width: 100%;
    height: 250px;
    background: #f0f0f0;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    border-radius: 8px;
}

#close-ad-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s;
}
#close-ad-btn:active {
    background: #d40045;
}

/* [NEW] 옵션 버튼 스타일 */
#option-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(90deg, #ff0055, #ff5500);
    border: none;
    border-radius: 15px;
    color: white;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
    margin-bottom: 10px;
    transition: transform 0.2s;
    box-shadow: 0 4px 15px rgba(255, 0, 85, 0.4);
}

#option-btn:active {
    transform: scale(0.98);
}

/* 추가 컨트롤 영역이 열릴 때 애니메이션 */
#extra-controls {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 이제 잠금 아이콘(.locked) 스타일은 필요 없지만, 혹시 모르니 둠 */