/* base.css
   Minimal reset + tokens (edit these for branding)
*/
:root {
  --bg: #ffffff;
  --panel: #f6f7f9;
  --panel-2: #ffffff;

  /* keep reading text dark for readability */
  --text: #0b0f19;
  --muted: #5b6475;

  --border: rgba(15, 76, 129, 0.16);
  --shadow: 0 16px 40px rgba(2, 6, 23, 0.1);
  --shadow-soft: 0 8px 22px rgba(2, 6, 23, 0.1);

  /* BRAND ACCENT */
  --accent: #0f4c81;

  --sb-w: 300px;
  --topbar-h: 56px;

  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.brand {
  display: inline-flex;
  gap: 0;
  text-decoration: none;

  font-family: Arial, Helvetica, sans-serif;
  font-size: 22px;
  font-weight: 700;

  letter-spacing: -0.03em; /* equals -0.66px at 22px */
  line-height: 1.6; /* 22px * 1.6 = 35.2px */
}

/* Dent */
.brand span:first-child {
  color: rgb(10, 61, 98);
}

/* AIstudy */
.brand span:last-child {
  color: #000;
}

button,
textarea {
  font: inherit;
}
button {
  cursor: pointer;
}