/*
 * base.css — 리셋 · 폰트 · 공통 디자인 토큰
 * NOULE AI Brand OS
 * 계승: card-v2 잔광 팔레트, Pretendard Variable v1.3.9
 */

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

:root {
  /* ── 잔광 팔레트 토큰 (NOULE brand.md) ── */
  --ink:        #2E2620;
  --ink-80:     rgba(46,38,32,0.80);
  --ink-60:     rgba(46,38,32,0.60);
  --ink-30:     rgba(46,38,32,0.30);
  --ink-12:     rgba(46,38,32,0.12);
  --ink-06:     rgba(46,38,32,0.06);
  --purple:     #6E6481;
  --lavender:   #9B8FAE;
  --coral:      #C4897A;
  --gold:       #C8A682;
  --amber:      #D4A07A;
  --sand:       #E9E0D4;
  --cream:      #F5EDE3;
  --warm-white: #FAF6F2;
  --blue:       #5B6E8C;

  /* ── 05 Scandinavian Premium 토큰 ── */
  --scandi-bg:        #F5EDE3;   /* 크림 배경 */
  --scandi-bg-alt:    #EDE2D6;   /* 약간 더 따뜻한 배경 변형 */
  --scandi-ink:       #3A342E;   /* 잉크 텍스트 */
  --scandi-ink-60:    rgba(58,52,46,0.60);
  --scandi-ink-30:    rgba(58,52,46,0.30);
  --scandi-rule:      rgba(58,52,46,0.12);

  /* ── 앱 UI 색 ── */
  --bg-page:    #EEE5DA;
  --surface:    rgba(245,237,227,0.96);
  --border:     rgba(46,38,32,0.10);
  --accent:     var(--blue);

  /* ── 반경 / 그림자 ── */
  --r-sm: 8px;
  --r-md: 16px;
  --r-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(46,38,32,0.08);
  --shadow-md: 0 8px 28px rgba(46,38,32,0.12);
  --shadow-lg: 0 20px 60px rgba(46,38,32,0.18);

  /* ── 간격 ── */
  --sp-xs: 4px;
  --sp-sm: 8px;
  --sp-md: 16px;
  --sp-lg: 24px;
  --sp-xl: 40px;

  /* ── 모션 ── */
  --ease: cubic-bezier(0.25,0.46,0.45,0.94);
  --dur-fast: 220ms;
  --dur-base: 600ms;
}

/* ─── Base ─── */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Pretendard Variable", Pretendard,
               -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-page);
  color: var(--ink);
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  word-break: keep-all;  /* 계승: 한글 줄바꿈 안전 */
}

/* ─── 앱 레이아웃 ─── */
.app-shell {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--sp-xl) var(--sp-md);
  min-height: 100vh;
  gap: var(--sp-lg);
}

.app-header {
  text-align: center;
}

.app-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.app-header .subtitle {
  font-size: 0.875rem;
  color: var(--ink-60);
  margin-top: 4px;
}

/* ─── 섹션 레이블 ─── */
.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-60);
  margin-bottom: var(--sp-sm);
}

/* ─── 유틸리티 ─── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}