*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #FFFFFF;
  --surface:  #F7F7F5;
  --border:   #E4E4E0;
  --text:     #1A1A1A;
  --muted:    #8A8A8A;
  --accent:   #2563EB;
  --accent-h: #1D4ED8;
  --success:  #16A34A;
  --error:    #DC2626;
  --radius:   10px;
  --shadow:   0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px 48px;
}

/* ── Header ── */
.header {
  text-align: center;
  margin-bottom: 32px;
  margin-top: 16px;
  width: 100%;
}

.header h1 {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.2;
}

.header h1 a {
  color: var(--text);
  text-decoration: none;
  transition: color .15s;
}

.header h1 a:hover {
  color: var(--accent);
}

.header p {
  margin-top: 6px;
  font-size: 0.875rem;
  color: var(--muted);
}

/* ── Main container ── */
.main-container {
  width: 100%;
  max-width: 720px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px 32px;
}

/* ── Description ── */
.description {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 20px;
  padding: 12px 14px;
  background: var(--surface);
  border-radius: 8px;
  border: 1px solid var(--border);
}

/* ── Calculator table ── */
.calculator-form {
  width: 100%;
}

.calculator-table {
  width: 100%;
  border-collapse: collapse;
  margin: 4px 0 16px;
  font-size: 0.8125rem;
}

.calculator-table th {
  background: var(--surface);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 6px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.calculator-table td {
  padding: 6px 5px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.calculator-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--muted);
  font-size: 0.75rem;
  white-space: nowrap;
  padding-right: 10px;
}

.calculator-table label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text);
}

.calculator-table label b {
  font-weight: 600;
}

/* Inputs & selects inside table */
.calculator-table input[type="number"],
.calculator-table input[type="text"],
.calculator-table select {
  width: 100%;
  height: 32px;
  padding: 0 8px;
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}

.calculator-table input[type="number"]:focus,
.calculator-table input[type="text"]:focus,
.calculator-table select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
  background: var(--bg);
}

.calculator-table input[type="number"]::placeholder,
.calculator-table input[type="text"]::placeholder {
  color: var(--border);
}

.calculator-table input:invalid {
  border-color: var(--error);
}

/* Checkbox */
.calculator-table input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ── Calculate button ── */
.calculate-btn {
  display: block;
  margin: 0 auto 4px;
  height: 40px;
  padding: 0 28px;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .15s, transform .1s;
}

.calculate-btn:hover  { background: var(--accent-h); }
.calculate-btn:active { transform: scale(.98); }

/* ── Results ── */
.results-container {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.results-table th {
  background: var(--surface);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 10px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.results-table td {
  padding: 8px 10px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  background: var(--bg);
}

.results-table tr:first-child td {
  background: var(--surface);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.results-table tr:last-child td {
  border-bottom: none;
  font-weight: 600;
  color: var(--accent);
}

.results-table tr:hover td {
  background: var(--surface);
}

/* Nature indicators */
.results-table span[title] {
  font-size: 0.7rem;
  font-weight: 700;
  margin-left: 2px;
  color: var(--accent);
}

/* ── Share ── */
.share-container {
  margin-top: 14px;
  width: 100%;
}

.share-input {
  width: 100%;
  height: 36px;
  padding: 0 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.75rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  transition: border-color .15s;
  cursor: text;
}

.share-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.share-input::placeholder {
  color: var(--border);
  font-family: inherit;
}

.link-note {
  display: none;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 6px;
}

/* ── Nav menu ── */
.nav-menu {
  margin-top: 24px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.nav-menu h3 {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.nav-menu a {
  display: inline-block;
  margin-right: 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  transition: color .15s;
}

.nav-menu a:hover {
  color: var(--accent-h);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── Footer ── */
.footer {
  margin-top: 28px;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* ── Form fields (above stats table) ── */
.form-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-bottom: 16px;
  align-items: flex-end;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
  height: 34px;
  padding: 0 10px;
  font-family: inherit;
  font-size: 0.8125rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  min-width: 0;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
  background: var(--bg);
}

.form-group--name  { flex: 1 1 140px; }
.form-group--gender { flex: 1 1 140px; }
.form-group--pkmn  { flex: 2 1 200px; }
.form-group--lvl   { flex: 0 0 80px; }
.form-group--nature { flex: 1 1 160px; }
.form-group--shiny {
  flex: 0 0 auto;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  padding-bottom: 6px;
}

.form-group--shiny label {
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  cursor: pointer;
}

.form-group--shiny input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
  margin: 0;
}

.form-row-separator {
  width: 100%;
  height: 0;
  margin: 0;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .main-container {
    padding: 18px 14px;
  }

  .calculator-table {
    font-size: 0.75rem;
  }

  .calculator-table th,
  .calculator-table td {
    padding: 5px 3px;
  }

  .calculator-table input[type="number"],
  .calculator-table input[type="text"],
  .calculator-table select {
    font-size: 0.75rem;
    height: 28px;
    padding: 0 5px;
  }

  .header h1 {
    font-size: 1.35rem;
  }

  .form-group--name,
  .form-group--gender,
  .form-group--pkmn  { flex: 1 1 100%; }

  .form-group--lvl   { flex: 0 0 80px; }
  .form-group--nature { flex: 1 1 calc(100% - 96px); }
}