/* ============================================================
   KOBRA Summit 2026 — Design Tokens (Light theme)
   원본 conference.kobra.kr 색감/폰트 기준
   ------------------------------------------------------------
   색상·폰트·간격을 여기서 한 번에 바꿀 수 있습니다.
   ============================================================ */
:root {
  /* Backgrounds (light) */
  --bg-primary: #ffffff;
  --bg-secondary: #f4f7fa;     /* 교차 섹션 배경 */
  --bg-tint: #eaf2ff;          /* 옅은 블루 틴트 */
  --bg-card: #ffffff;
  --bg-glass: rgba(255,255,255,0.88);

  /* Brand colors (원본) */
  --blue: #006cee;             /* KOBRA 밝은 파랑 */
  --navy: #194da5;             /* 딥 네이비 */
  --navy-deep: #0e2038;        /* 푸터 */
  --magenta: #e91e63;          /* 포인트(중요) */
  --accent: #006cee;           /* alias = blue */
  --accent-blue: #194da5;      /* alias = navy */
  --gradient: linear-gradient(135deg, #006cee, #194da5);
  --gradient-hover: linear-gradient(135deg, #1a7df5, #20409a);

  /* Text */
  --text: #20303c;             /* 본문 진한 슬레이트 */
  --text-strong: #0f1f2e;
  --text-muted: #5c6b76;
  --text-dim: #93a1ab;
  --white: #ffffff;

  /* Lines & shadows */
  --border: #e5eaef;
  --border-glass: #e8edf2;
  --shadow-sm: 0 2px 10px rgba(16,40,80,0.06);
  --shadow: 0 10px 30px rgba(16,40,80,0.08);
  --shadow-lg: 0 18px 50px rgba(16,40,80,0.13);

  /* Shape & motion */
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 72px;

  /* Fonts (Pretendard + Public Sans / Rubik) */
  --font-body: 'Pretendard', 'Public Sans', -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  --font-heading: 'Public Sans', 'Pretendard', 'Rubik', sans-serif;
}