/* ===== 기본 리셋 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* hidden 속성이 항상 동작하도록 강제 (display 지정 요소 대응) */
[hidden] {
  display: none !important;
}

:root {
  --bg: #0e0f13;
  --panel: #181a21;
  --text: #f5f6f8;
  --muted: #9aa0ad;
  --accent: #5b8cff;
  --green: #34c759;
  --red: #ff3b30;
  --radius: 18px;
}

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR",
    "Malgun Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  -webkit-font-smoothing: antialiased;
}

#app {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* ===== 화면 전환 ===== */
.screen {
  display: none;
  width: 100%;
  max-width: 720px;
  animation: fade 0.35s ease;
}
.screen.active {
  display: block;
}
@keyframes fade {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== 카메라 ===== */
.camera-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
}
.camera-container video,
.camera-container canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* 거울 모드 */
}
.camera-container canvas {
  pointer-events: none;
}
/* 카메라가 들어갈 자리 */
.camera-slot {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  background: #000;
}

/* ===== 버튼 공통 ===== */
.btn {
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: 999px;
  padding: 12px 20px;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.2s ease, opacity 0.2s ease;
}
.btn:active { transform: scale(0.96); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid #3a3d47;
}
.btn-outline:hover { border-color: var(--accent); }
.btn-ghost { background: rgba(255,255,255,0.08); color: var(--text); }
.btn-ghost:hover { background: rgba(255,255,255,0.16); }
.btn-small { padding: 8px 16px; font-size: 13px; background: var(--accent); color:#fff; }

/* ===== 0단계: 동의 / 안내 ===== */
.consent-wrap {
  text-align: center;
  background: var(--panel);
  border: 1px solid #2a2e38;
  border-radius: var(--radius);
  padding: 40px 28px;
  max-width: 480px;
  margin: 0 auto;
}
.consent-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 22px;
}
.consent-body p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 8px;
}
.consent-body b { color: var(--accent); }
.consent-privacy {
  margin-top: 18px !important;
  font-size: 13.5px !important;
  color: var(--muted) !important;
  line-height: 1.6 !important;
}
.consent-ios {
  margin-top: 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: #ffd479;
  background: rgba(255, 212, 121, 0.1);
  border: 1px solid rgba(255, 212, 121, 0.3);
  border-radius: 12px;
  padding: 12px 14px;
}
.consent-ios b { color: #ffd479; }
.consent-btn {
  margin-top: 28px;
  width: 100%;
  font-size: 16px;
  padding: 15px 20px;
}
.consent-error {
  margin-top: 16px;
  color: var(--red);
  font-size: 14px;
}

/* ===== 1단계: 캘리브레이션 ===== */
.calib-wrap { text-align: center; }
.calib-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.4;
}
.calib-count-wrap { margin-top: 22px; }
.calib-count {
  font-size: 64px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.calib-sub {
  color: var(--muted);
  margin-top: 4px;
  font-size: 15px;
}
.calib-error {
  margin-top: 16px;
  color: var(--red);
  font-size: 14px;
}
.privacy-note {
  margin-top: 28px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}

/* ===== 2단계: 멤버 선택 ===== */
.menu-wrap { text-align: center; }
.menu-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 28px;
}
.member-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.member-card {
  background: #ffffff;
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 18px 10px;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}
.member-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(91, 140, 255, 0.35);
}
.member-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, #5b8cff, #a35bff);
}
.member-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.member-name {
  font-size: 16px;
  font-weight: 700;
  color: #15171c; /* 흰 카드 위 진한 글자 → 잘 보이도록 */
}

/* ===== 3단계: 메인 감지 ===== */
.detect-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.detect-badge {
  font-size: 13px;
  font-weight: 700;
  color: var(--green);
  background: rgba(52, 199, 89, 0.12);
  padding: 6px 12px;
  border-radius: 999px;
}
.detect-stage {
  position: relative;
}
.detect-controls {
  margin-top: 16px;
  display: flex;
  justify-content: center;
}

.warning-subtitle {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.72);
  color: #fff;
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  max-width: 92%;
}
.countdown-number {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 120px;
  font-weight: 900;
  color: var(--red);
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
  font-variant-numeric: tabular-nums;
  animation: pulse 1s infinite;
}
@keyframes pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50%      { transform: translate(-50%, -50%) scale(1.18); }
}
.paused-banner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.78);
  padding: 18px 22px;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
}

/* ===== 4단계: 알람 ===== */
.alarm-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}
.alarm-video-wrap {
  position: relative;
  display: flex;
}
.alarm-video {
  width: 100%;
  max-width: 540px;
  max-height: 70vh;
  border-radius: var(--radius);
  background: #000;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
}
.alarm-play {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 180px;
  height: 60px;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-family: inherit;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
}
.alarm-play:active { transform: scale(0.96); }
.sound-hint {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.78);
  color: #fff;
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
}
.alarm-dismiss {
  font-size: 17px;
  padding: 14px 40px;
}

/* ===== 반응형 ===== */
@media (max-width: 600px) {
  .member-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .calib-title { font-size: 19px; }
  .menu-title { font-size: 20px; }
  .countdown-number { font-size: 90px; }
  .warning-subtitle {
    font-size: 12.5px;
    white-space: normal;
  }
  .detect-header { flex-wrap: wrap; gap: 8px; }
}