@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@200;300;400;500;700;900&family=Noto+Sans+KR:wght@200;300;400;500;700;900&display=swap');

:root {
  --main-blue: #0C2E86;
  --main-black: #1D242B;
  --main-light-black: #59636D;
  --main-white: #FAFAFA;
  --main-grey: #f0f0f0;
  --font-black: #1D242B;
  --font-white: #FAFAFA;
  --font-blue: #0c2e86;
  --font-grey: #7F8E9D;
  --login-white-alpha: #FFFFFF4D;
  --logbox-grey-alpha: #97959540;
  --logbox-white: #FFFFFF;
  --admin-bg: #f0f2f5;
  --nav-height: 80px;

  --english-font: 'Roboto', sans-serif;
  --korean-font: 'Noto Sans KR', sans-serif;

  --weight-extra-light: 200;
  --weight-light: 300;
  --weight-medium: 500;
  --weight-bold: 700;
  --weight-extra-bold: 900;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: var(--korean-font);
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  background-color: var(--main-white);
  color: var(--font-black);
}

body::-webkit-scrollbar { width: 0; background: transparent; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* ---------------------------------------------------------------- */
/*  NavBar                                                            */
/* ---------------------------------------------------------------- */
.nav-container {
  width: 100%;
  height: var(--nav-height);
  background-color: var(--main-white);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 500;
  padding: 0 40px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

.nav-logo {
  font-family: var(--english-font);
  font-weight: var(--weight-extra-bold);
  font-size: 22px;
  color: var(--font-blue);
  cursor: pointer;
  letter-spacing: -0.5px;
}
.nav-logo span { color: var(--font-blue); }

.nav-items { display: flex; align-items: center; gap: 44px; }

.nav-link {
  font-family: var(--english-font);
  font-weight: var(--weight-bold);
  font-size: 18px;
  color: var(--font-black);
  cursor: pointer;
  transition: color 0.2s ease;
}
.nav-link:hover,
.nav-link.active { color: var(--font-blue); font-weight: var(--weight-extra-bold); }

.nav-btn {
  border: none;
  background: var(--main-blue);
  color: var(--font-white);
  border-radius: 999px;
  padding: 9px 22px;
  font-size: 15px;
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.nav-btn:hover { box-shadow: 0 6px 18px rgba(12, 46, 134, 0.3); transform: translateY(-1px); }

@media (max-width: 640px) {
  .nav-container { padding: 0 18px; }
  .nav-items { gap: 20px; }
  .nav-link { font-size: 15px; }
}

/* ---------------------------------------------------------------- */
/*  Footer                                                           */
/* ---------------------------------------------------------------- */
.site-footer {
  background: var(--main-black);
  color: var(--font-white);
  text-align: center;
  padding: 40px 20px;
  font-family: var(--english-font);
  font-weight: var(--weight-light);
  font-size: 14px;
  letter-spacing: 0.5px;
}
.site-footer strong { font-weight: var(--weight-bold); }

/* ---------------------------------------------------------------- */
/*  Buttons / utils                                                  */
/* ---------------------------------------------------------------- */
.btn-pill {
  border-radius: 50px;
  border: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
  background-color: var(--font-white);
  padding: 0 34px;
  height: 56px;
  font-family: var(--english-font);
  font-size: 16px;
  font-weight: 400;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
}
.btn-pill:hover { background-color: var(--main-blue); color: var(--font-white); }

.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--main-black);
  color: var(--font-white);
  padding: 14px 26px;
  border-radius: 10px;
  font-size: 15px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 2000;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: #b3261e; }
.toast.success { background: var(--main-blue); }