/* ─── 기본 리셋 & 변수 ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:           #060d1a;
  --surface:      rgba(8, 16, 32, 0.92);
  --surface-2:    rgba(12, 22, 44, 0.96);
  --green:        #00e87a;
  --green-dim:    rgba(0, 232, 122, 0.5);
  --green-glow:   rgba(0, 232, 122, 0.25);
  --red:          #ff4444;
  --gold:         #ffdd00;
  --text:         #c8e0cc;
  --text-dim:     rgba(200, 224, 204, 0.55);
  --radius-md:    14px;
  --radius-lg:    20px;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', 'Apple SD Gothic Neo', sans-serif;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ─── 권한 화면 ──────────────────────────────────────────── */
#permission-modal {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at center, #0b1827 0%, #04080f 100%);
  transition: opacity 0.3s;
}

.perm-box {
  width: min(86vw, 360px);
  background: var(--surface-2);
  border: 1px solid rgba(0,232,122,0.3);
  border-radius: var(--radius-lg);
  padding: 36px 28px 28px;
  text-align: center;
  box-shadow: 0 0 40px rgba(0,232,122,0.12);
}

.perm-icon { font-size: 52px; margin-bottom: 16px; }

.perm-box h2 {
  font-size: 1.25rem; font-weight: 700;
  color: var(--green); margin-bottom: 14px;
  letter-spacing: -0.3px;
}

.perm-box p {
  font-size: 0.88rem; line-height: 1.65;
  color: var(--text-dim); margin-bottom: 28px;
}

.perm-buttons { display: flex; gap: 12px; }

.btn-yes, .btn-no {
  flex: 1; padding: 13px 0;
  border: none; border-radius: var(--radius-md);
  font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: transform 0.1s, opacity 0.1s;
}
.btn-yes:active, .btn-no:active { transform: scale(0.96); }

.btn-yes { background: var(--green); color: #04080f; }
.btn-no  {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid rgba(200,224,204,0.25);
}

/* ─── 메인 앱 레이아웃 ────────────────────────────────────── */
#app {
  display: none;
  flex-direction: column;
  align-items: center;
  width: 100%; height: 100%;
  padding: 0;
  position: relative;
  overflow: hidden;
}

/* ─── 상단 HUD ────────────────────────────────────────────── */
.top-hud {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px 6px;
  position: relative; z-index: 10;
  flex-shrink: 0;
}

.app-title {
  font-size: 1rem; font-weight: 700;
  color: var(--green); letter-spacing: 1px;
  text-shadow: 0 0 10px var(--green-glow);
}

#heading-display {
  font-family: 'Courier New', monospace;
  font-size: 0.85rem; font-weight: 600;
  color: var(--green-dim);
  background: rgba(0,232,122,0.07);
  padding: 4px 10px; border-radius: 8px;
  border: 1px solid rgba(0,232,122,0.18);
  min-width: 80px; text-align: center;
}

#active-count {
  font-size: 0.78rem;
  color: var(--red);
  background: rgba(255,68,68,0.1);
  border: 1px solid rgba(255,68,68,0.3);
  border-radius: 8px; padding: 4px 10px;
}

/* ─── 데모 배너 ───────────────────────────────────────────── */
#demo-banner {
  display: none;
  width: calc(100% - 32px); margin: 0 16px;
  background: rgba(255,200,0,0.12);
  border: 1px solid rgba(255,200,0,0.35);
  border-radius: 8px; padding: 7px 12px;
  font-size: 0.78rem; color: #ffd24d;
  text-align: center; flex-shrink: 0;
}

/* ─── 레이더 영역 ─────────────────────────────────────────── */
.radar-wrap {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  position: relative; width: 100%;
}

#radar-canvas {
  display: block;
  border-radius: 50%;
  box-shadow: 0 0 36px rgba(0,232,122,0.15), 0 0 80px rgba(0,232,122,0.06);
}

/* ─── 거리 슬라이더 (우측 수직) ─────────────────────────── */
.distance-slider-wrap {
  position: absolute; right: 10px; top: 50%;
  transform: translateY(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  z-index: 20;
}

.distance-slider-wrap label {
  font-size: 0.68rem; color: var(--text-dim);
  writing-mode: vertical-lr; transform: rotate(180deg);
  letter-spacing: 1px; text-transform: uppercase;
}

#distance-slider {
  /* Firefox: orient="vertical" 속성으로 처리 */
  /* Chrome/Safari: writing-mode + appearance 조합 */
  -webkit-appearance: slider-vertical;
  appearance: slider-vertical;
  writing-mode: vertical-lr;
  direction: rtl;           /* 아래가 최소값, 위가 최대값 */
  width: 28px; height: 160px;
  cursor: pointer;
  accent-color: var(--green);
  background: transparent;
  touch-action: none;       /* 터치 스크롤 방지 */
}

#distance-label {
  font-family: 'Courier New', monospace;
  font-size: 0.75rem; color: var(--green);
  background: rgba(0,232,122,0.08);
  border: 1px solid rgba(0,232,122,0.2);
  border-radius: 6px; padding: 3px 6px;
  min-width: 44px; text-align: center;
}

/* ─── 하단 컨트롤 바 ─────────────────────────────────────── */
.bottom-bar {
  width: 100%; flex-shrink: 0;
  padding: 10px 16px 20px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
  background: linear-gradient(to top, rgba(6,13,26,0.9) 60%, transparent);
}

/* 가격 / 카테고리 버튼 */
.filter-btn {
  flex: 1;
  padding: 11px 0;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0,232,122,0.35);
  background: rgba(0,232,122,0.07);
  color: var(--green);
  font-size: 0.88rem; font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  letter-spacing: 0.3px;
}
.filter-btn:active { background: rgba(0,232,122,0.18); transform: scale(0.96); }

/* 찾기 버튼 (가운데 크게) */
#find-btn {
  flex: 2;
  padding: 14px 0;
  border-radius: var(--radius-lg);
  border: none;
  background: linear-gradient(135deg, #00e87a, #00b85d);
  color: #04080f;
  font-size: 1.05rem; font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0,232,122,0.4);
  transition: transform 0.1s, box-shadow 0.1s;
  letter-spacing: 1px;
}
#find-btn:active {
  transform: scale(0.95);
  box-shadow: 0 2px 10px rgba(0,232,122,0.3);
}

/* 설정 버튼 */
#settings-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(200,224,204,0.2);
  background: rgba(200,224,204,0.05);
  color: var(--text-dim);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
  flex-shrink: 0;
}
#settings-btn:active { background: rgba(200,224,204,0.12); }

/* ─── 가격 바텀시트 ──────────────────────────────────────── */
#price-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.55); z-index: 300;
  backdrop-filter: blur(3px);
}
#price-overlay.show { display: block; }

#price-sheet {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 310;
  background: var(--surface-2);
  border-top: 1px solid rgba(0,232,122,0.25);
  border-radius: 22px 22px 0 0;
  padding: 20px 24px 36px;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
#price-sheet.open { transform: translateY(0); }

.sheet-handle {
  width: 40px; height: 4px;
  background: rgba(200,224,204,0.2);
  border-radius: 2px; margin: 0 auto 18px;
}

#price-sheet h3 {
  font-size: 1rem; color: var(--green);
  margin-bottom: 20px; text-align: center;
}

.price-range-row {
  display: flex; align-items: center;
  justify-content: space-between; margin-bottom: 14px;
}
.price-range-row span { font-size: 0.8rem; color: var(--text-dim); }

#price-display {
  text-align: center;
  font-size: 1.3rem; font-weight: 700;
  color: var(--green); margin-bottom: 16px;
  font-family: 'Courier New', monospace;
}

#price-slider {
  width: 100%;
  accent-color: var(--green);
  height: 6px; cursor: pointer;
}

/* ─── 카테고리 모달 ──────────────────────────────────────── */
#category-modal {
  display: none; position: fixed; inset: 0; z-index: 400;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  align-items: center; justify-content: center;
}
#category-modal.show { display: flex; }

.cat-box {
  width: min(80vw, 320px);
  background: var(--surface-2);
  border: 1px solid rgba(0,232,122,0.3);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: 0 0 40px rgba(0,232,122,0.12);
}

.cat-box h3 { font-size: 1.05rem; color: var(--green); margin-bottom: 22px; }

.cat-options { display: flex; flex-direction: column; gap: 14px; margin-bottom: 24px; }

.cat-option {
  display: flex; align-items: center; gap: 14px;
  cursor: pointer;
}

.cat-option input[type="checkbox"] {
  width: 20px; height: 20px;
  accent-color: var(--green); cursor: pointer;
  flex-shrink: 0;
}

.cat-option-info { display: flex; flex-direction: column; }
.cat-option-label { font-size: 1rem; font-weight: 600; color: var(--text); }
.cat-option-desc  { font-size: 0.78rem; color: var(--text-dim); margin-top: 2px; }

.cat-buttons { display: flex; gap: 10px; }

#category-apply-btn {
  flex: 2; padding: 12px 0;
  background: var(--green); color: #04080f;
  border: none; border-radius: var(--radius-md);
  font-size: 0.95rem; font-weight: 700; cursor: pointer;
}

#category-cancel-btn {
  flex: 1; padding: 12px 0;
  background: transparent; color: var(--text-dim);
  border: 1px solid rgba(200,224,204,0.2);
  border-radius: var(--radius-md);
  font-size: 0.9rem; cursor: pointer;
}

/* ─── 결과 모달 ───────────────────────────────────────────── */
#result-modal {
  display: none; position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(5px);
  align-items: center; justify-content: center;
  padding: 20px;
}
#result-modal.show { display: flex; }

.result-box {
  width: 100%; max-width: 360px;
  background: var(--surface-2);
  border: 1px solid rgba(0,232,122,0.3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 50px rgba(0,232,122,0.15);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { transform: translateY(40px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.result-header {
  background: linear-gradient(135deg, rgba(0,232,122,0.15), rgba(0,180,95,0.08));
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(0,232,122,0.15);
}

.result-top-row {
  display: flex; align-items: center;
  justify-content: space-between; margin-bottom: 10px;
}

.result-badge {
  display: inline-block; padding: 3px 10px;
  border-radius: 20px; font-size: 0.75rem; font-weight: 600;
}
.badge-food { background: rgba(255,100,50,0.2);  color: #ff8c60; border: 1px solid rgba(255,100,50,0.4); }
.badge-cafe { background: rgba(180,120,60,0.2);  color: #d4a060; border: 1px solid rgba(180,120,60,0.4); }
.badge-bar  { background: rgba(100,80,200,0.2);  color: #9a80e0; border: 1px solid rgba(100,80,200,0.4); }

#result-name {
  font-size: 1.35rem; font-weight: 800;
  color: #fff; letter-spacing: -0.3px;
}

.result-distance-row {
  display: flex; align-items: center; gap: 6px; margin-top: 4px;
}
.result-distance-row .icon { font-size: 0.9rem; }
#result-distance { font-size: 0.9rem; color: var(--green-dim); font-weight: 600; }

.result-body { padding: 18px 20px 20px; }

.result-row {
  display: flex; justify-content: space-between;
  align-items: center; padding: 9px 0;
  border-bottom: 1px solid rgba(200,224,204,0.08);
}
.result-row:last-child { border-bottom: none; }

.result-row-label { font-size: 0.8rem; color: var(--text-dim); }
.result-row-value { font-size: 0.92rem; color: var(--text); font-weight: 600; }
.result-price-val { color: var(--green); }

.result-actions { padding: 0 20px 20px; display: flex; gap: 10px; }

#result-nav-btn {
  flex: 3; padding: 14px 0;
  background: linear-gradient(135deg, #00e87a, #00b85d);
  border: none; border-radius: var(--radius-md);
  color: #04080f; font-size: 0.95rem; font-weight: 800;
  cursor: pointer; letter-spacing: 0.3px;
  transition: transform 0.1s;
}
#result-nav-btn:active { transform: scale(0.97); }

#result-close-btn {
  flex: 1; padding: 14px 0;
  background: transparent;
  border: 1px solid rgba(200,224,204,0.2);
  border-radius: var(--radius-md);
  color: var(--text-dim); font-size: 0.9rem;
  cursor: pointer;
}

/* ─── 토스트 알림 ─────────────────────────────────────────── */
#toast {
  position: fixed; bottom: 90px; left: 50%; transform: translateX(-50%);
  background: rgba(20,30,50,0.96);
  border: 1px solid rgba(0,232,122,0.3);
  color: var(--text); font-size: 0.88rem;
  padding: 11px 20px; border-radius: 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
  white-space: nowrap; z-index: 600;
}
#toast.show { opacity: 1; }

/* ─── 반응형 ──────────────────────────────────────────────── */
@media (max-height: 700px) {
  .perm-box { padding: 24px 22px 22px; }
  .perm-icon { font-size: 38px; margin-bottom: 10px; }
  #price-sheet { padding: 16px 20px 28px; }
}

@media (min-width: 500px) {
  #app { max-width: 430px; margin: 0 auto; }
}