/* v1.0.2 stable shared stylesheet */
:root {
  --bg: #f6f7f9;
  --fg: #111111;
  --muted: #666666;
  --card: #ffffff;
  --border: #e8e8e8;
  --shadow: rgba(0,0,0,0.06);
  --input-border: #d6d6d6;
  --focus: rgba(17,17,17,0.10);
  --btn-bg: #111111;
  --btn-fg: #ffffff;
  --code-bg: #f2f2f2;
  color-scheme: light;
}

html[data-theme="dark"] {
  --bg: #0b0c0f;
  --fg: #f3f4f6;
  --muted: #a1a1aa;
  --card: #111217;
  --border: #24262e;
  --shadow: rgba(0,0,0,0.40);
  --input-border: #2b2e38;
  --focus: rgba(243,244,246,0.10);
  --btn-bg: #f3f4f6;
  --btn-fg: #0b0c0f;
  --code-bg: #1a1c24;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--fg);
}

.wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 16px;
}

.container {
  width: 100%;
  max-width: 680px;
}

.title, h1 {
  margin: 0 0 18px;
  font-size: 42px;
  letter-spacing: -0.02em;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 10px 30px var(--shadow);
}

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-top: 12px;
  margin-bottom: 6px;
}

input {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--input-border);
  font-size: 15px;
  outline: none;
  background: transparent;
  color: inherit;
}

input:focus {
  border-color: var(--fg);
  box-shadow: 0 0 0 3px var(--focus);
}

.btn, button[type="submit"] {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--fg);
  background: var(--btn-bg);
  color: var(--btn-fg);
  cursor: pointer;
  width: 100%;
  font-size: 15px;
  font-weight: 600;
}

.hint {
  color: var(--muted);
  font-size: 13px;
  margin-top: 12px;
  line-height: 1.35;
}

.err {
  color: #b00020;
  font-size: 13px;
  margin-top: 12px;
}

html[data-theme="dark"] .err {
  color: #ff6b7a;
}

code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 7px;
}

.theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  border-radius: 999px;
  width: 42px;
  height: 42px;
  cursor: pointer;
  box-shadow: 0 8px 18px var(--shadow);
  display: grid;
  place-items: center;
  font-size: 18px;
}

/* v1.0.2 stable: hop title size tweak */
#cards .card .title > div:first-child b {
  font-size: 28px !important;
  font-weight: 800 !important;
  letter-spacing: -0.01em;
}

@media (min-width: 1200px) {
  #cards .card .title > div:first-child b {
    font-size: 32px !important;
  }
}


/* v1.0.2-hotfix2: tabs (nav pills) */
.tabLink {
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg);
  background: var(--card);
}
.tabLink.active {
  border-color: var(--input-border);
  font-weight: 650;
  background: var(--code-bg);
}


/* v1.0.3-stable: print/PDF styling for management-ready exports */
@media print {
  html, body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  /* Hide interactive UI chrome */
  .theme-toggle,
  #topNav,
  #logoutBtn,
  #themeBtn,
  #startBtn,
  #stopBtn,
  #exportBtn,
  select,
  input,
  button,
  .no-print {
    display: none !important;
  }

  /* Flatten cards */
  .card {
    box-shadow: none !important;
    border: 1px solid #dddddd !important;
    border-radius: 10px !important;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  /* Make titles compact */
  .title, h1 {
    font-size: 22px !important;
    margin: 0 0 10px !important;
  }

  /* Ensure charts print clearly */
  canvas, img.print-chart {
    width: 100% !important;
    height: auto !important;
  }

  /* Reduce padding for PDF density */
  .wrap { padding: 0 !important; }
}