/* ── Design tokens ── */
:root {
  --accent:       #1a56db;
  --accent-dark:  #1444b8;
  --accent-light: #e8eeff;

  --slate-50:  #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;

  --success: #16a34a;
  --danger:  #dc2626;
  --warning: #d97706;

  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.07);
  --shadow:    0 2px 8px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.12);

  --font: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

/* ── Base ── */
html { font-size: 15px; }

body {
  font-family: var(--font);
  background: var(--slate-100);
  color: var(--slate-800);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius);
  border: none;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .15s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); box-shadow: var(--shadow); }

.btn-ghost {
  background: transparent;
  color: var(--slate-600);
  border: 1px solid var(--slate-300);
}
.btn-ghost:hover { background: var(--slate-100); }

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid transparent;
  padding: 4px 8px;
  font-size: .8rem;
}
.btn-danger:hover { background: #fef2f2; }

/* ── Form elements ── */
.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

label {
  font-size: .78rem;
  font-weight: 600;
  color: var(--slate-500);
  text-transform: uppercase;
  letter-spacing: .4px;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="date"],
textarea,
select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--slate-800);
  font-size: .9rem;
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(26,86,219,.12);
}

textarea { resize: vertical; min-height: 64px; }

/* ── Section card ── */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--slate-200);
}

.card-title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--slate-400);
  margin-bottom: 14px;
}

/* ── Grid helpers ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }

/* ── Toggle switch ── */
.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
  color: var(--slate-700);
  cursor: pointer;
  user-select: none;
}

input[type="checkbox"].toggle {
  width: 36px;
  height: 20px;
  appearance: none;
  background: var(--slate-300);
  border-radius: 20px;
  cursor: pointer;
  position: relative;
  transition: background .2s;
  border: none;
  padding: 0;
  flex-shrink: 0;
}
input[type="checkbox"].toggle::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: left .2s;
}
input[type="checkbox"].toggle:checked {
  background: var(--accent);
}
input[type="checkbox"].toggle:checked::after {
  left: 19px;
}