/* ================================
   기본 스타일
   리셋, 기본 레이아웃, 공통 유틸리티
================================ */

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

body {
  font-family: 'Noto Sans KR', sans-serif;
  background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-mid), var(--bg-gradient-end));
  min-height: 100vh;
  color: var(--text-primary);
  overflow-x: hidden;
}

/* 스크롤바 커스텀 */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: #1a1a1a;
  border-radius: 6px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #333333, #444444);
  border-radius: 6px;
  border: 2px solid #1a1a1a;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #444444, #555555);
}

/* 앱 컨테이너 */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  min-height: 100vh;
}

.screen {
  display: none;
}

.screen.active {
  display: block;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.hidden {
  display: none !important;
}