@CHARSET "UTF-8";

:root {
  --c-primary:       #1a6e38;
  --c-primary-dark:  #0f4a25;
  --c-primary-light: #2a9150;
  --c-accent:        #2563eb;
  --c-text:          #1e293b;
  --c-text-muted:    #64748b;
  --c-bg:            #f1f5f9;
  --c-surface:       #ffffff;
  --c-border:        #e2e8f0;
  --c-hover-bg:      #f8fafc;
  --shadow-sm:       0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:       0 4px 16px rgba(0,0,0,0.10);
  --radius:          6px;
  --radius-lg:       10px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  margin: 0;
}

/* ── Header ─────────────────────────────────────── */
#header {
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 60%, var(--c-primary-light) 100%);
  padding: 14px 28px;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.2px;
  color: #fff;
  box-shadow: var(--shadow-md);
}

#header a:link,
#header a:visited { color: rgba(255,255,255,0.95); text-decoration: none; }
#header a:hover   { color: #fff; opacity: 0.82; }

/* ── Layout ──────────────────────────────────────── */
#mainDiv {
  max-width: 880px;
  margin: 0 auto;
  padding: 28px 20px 48px;
}

/* ── Titles ──────────────────────────────────────── */
#title, .title {
  margin-top: 28px;
  margin-bottom: 6px;
  font-size: 1.55rem;
  font-weight: 700;
  text-align: center;
  color: var(--c-text);
}

#subtitle, .subtitle {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin: 24px auto 0;
  max-width: 520px;
  border-bottom: 1px solid var(--c-border);
  padding-bottom: 6px;
}

/* ── Navigation list ─────────────────────────────── */
.choicesList {
  list-style: none;
  padding: 0;
  margin: 10px auto 0;
  max-width: 520px;
}

.choicesList li {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 5px;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.1s;
}

.choicesList li:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow-sm);
  transform: translateX(2px);
}

.choicesList li a {
  display: block;
  padding: 10px 16px;
  color: var(--c-text);
  text-decoration: none;
  font-size: 0.94rem;
}

.choicesList li a:hover { color: var(--c-primary); }

/* ── Links ───────────────────────────────────────── */
a:link    { text-decoration: none; color: var(--c-accent); }
a:visited { color: var(--c-accent); }
a:hover   { color: #1d4ed8; }

/* ── Tooltip ─────────────────────────────────────── */
.ui-tooltip {
  background: #fefce8;
  border: 1px solid #fde68a;
  font-size: 0.78rem;
  padding: 6px 10px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  color: var(--c-text);
}

/* ── Form inputs ─────────────────────────────────── */
input, select {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 4px;
  font-size: 0.9rem;
  padding: 6px 10px;
  color: var(--c-text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(26,110,56,0.14);
}

/* ── Status badge colours ────────────────────────── */
.earlyColor {
  background: #fce7f3;
  color: #9d174d;
  border-radius: 4px;
}

.lateColor {
  background: #fef9c3;
  color: #713f12;
  border-radius: 4px;
}

.problemColor {
  background: #fee2e2;
  color: #991b1b;
  border-radius: 4px;
}

/* ── Data table ──────────────────────────────────── */
#dataTable {
  margin: 0 auto;
  width: auto;
  border-collapse: collapse;
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

#dataTable th,
#dataTable td {
  border: 1px solid var(--c-border);
  padding: 8px 16px;
  text-align: left;
}

#dataTable thead,
#dataTable th {
  background: #f1f5f9;
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--c-text-muted);
}

#dataTable tbody tr:hover {
  background: var(--c-hover-bg);
}

/* ── Buttons ─────────────────────────────────────── */
button, input[type="submit"], input[type="button"] {
  background: var(--c-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 8px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
}

button:hover, input[type="submit"]:hover, input[type="button"]:hover {
  background: var(--c-primary-dark);
  box-shadow: var(--shadow-sm);
}

/* ── Responsive ──────────────────────────────────── */
@media (max-width: 640px) {
  #mainDiv { padding: 16px 12px 32px; }
  #title   { font-size: 1.25rem; }
  #header  { font-size: 1.1rem; padding: 12px 16px; }
}