:root {
  --brand: #3b3b98;
  --brand-dark: #2b2b78;
  --bg: #f5f6fb;
  --surface: #ffffff;
  --ink: #1a1a2e;
  --muted: #6b7280;
  --border: #e4e6ef;
  --danger: #c0392b;
  --success: #1e8449;
  --info: #2471a3;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(20, 20, 50, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

a { color: var(--brand); }

.container { max-width: 880px; margin: 0 auto; padding: 32px 20px; }
.container-narrow { max-width: 440px; margin: 0 auto; padding: 48px 20px; }

h1, h2, h3 { color: var(--ink); margin-top: 0; }

/* --- Buttons --- */
.btn {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  border: none;
  padding: 11px 18px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--brand-dark); }
.btn-block { width: 100%; }
.btn-secondary { background: #fff; color: var(--brand); border: 1px solid var(--border); }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-link { background: none; color: var(--brand); border: none; cursor: pointer; padding: 0; text-decoration: underline; }

/* --- Cards & forms --- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 24px;
}

.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
.field input, .field select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
}
.field-error input, .field-error select { border-color: var(--danger); }
.error-text { display: block; color: var(--danger); font-size: 13px; margin-top: 4px; }
.req { color: var(--danger); }
.hint { display: block; color: var(--muted); font-size: 13px; margin-top: 4px; }

/* --- Flash messages --- */
.flashes { margin-bottom: 20px; }
.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 10px; font-size: 14px; }
.flash-success { background: #e8f6ee; color: var(--success); }
.flash-error { background: #fdecea; color: var(--danger); }
.flash-warning { background: #fef5e7; color: #9c6f19; }
.flash-info { background: #eaf2fb; color: var(--info); }

/* --- Tables --- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 12px; letter-spacing: 0.04em; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-active { background: #e8f6ee; color: var(--success); }
.badge-pending { background: #fef5e7; color: #9c6f19; }
.badge-inactive { background: #f1f1f4; color: var(--muted); }
.badge-draft { background: #eaf2fb; color: var(--info); }

/* --- Forms (Phase 2 additions) --- */
.field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  min-height: 70px;
  resize: vertical;
}
.field-error textarea { border-color: var(--danger); }
.field-row { display: flex; gap: 16px; flex-wrap: wrap; }
.field-row > * { flex: 1; min-width: 200px; }

/* Inline checkbox label (e.g. the "never expire" testing flag, §6.2). The
   checkbox must not pick up the full-width input styling above. */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  margin: 0;
  cursor: pointer;
}
.checkbox-label input[type="checkbox"] {
  width: auto;
  margin: 0;
}

/* SMS template reserved-word help + live validation (§6.2). */
.tpl-status { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.tpl-status:empty { display: none; }
.tpl-chip {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 12px;
  border: 1px solid transparent;
}
.tpl-chip-ok { color: var(--success); background: color-mix(in srgb, var(--success) 12%, transparent); border-color: color-mix(in srgb, var(--success) 35%, transparent); }
.tpl-chip-bad { color: var(--danger); background: color-mix(in srgb, var(--danger) 12%, transparent); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.tpl-var {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  padding: 2px 8px;
  margin: 0 4px 4px 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}
.tpl-var:hover { border-color: var(--brand); color: var(--brand); }
.tpl-warning { display: block; color: var(--danger); font-size: 13px; margin-top: 6px; }
.tpl-warning[hidden] { display: none; }
.field-ok input { border-color: var(--success); }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 8px; }
.section-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin: 24px 0 8px; }

/* --- Pill / tag input --- */
.pill-input {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 8px;
  background: #fff;
}
.pill-input.is-focused { border-color: var(--brand); }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 6px 3px 12px;
  font-size: 13px;
  font-weight: 600;
}
.pill button { border: none; background: none; cursor: pointer; color: var(--muted); font-size: 15px; line-height: 1; padding: 0 2px; }
.pill button:hover { color: var(--danger); }
.pill-entry { border: none; outline: none; flex: 1; min-width: 140px; font-size: 14px; padding: 4px; }

/* --- Survey builder --- */
.q-row { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; }
.q-row-head { display: flex; align-items: center; gap: 10px; justify-content: space-between; }
.q-row-head .q-controls button { margin-left: 4px; }
.q-validation-opts { margin-top: 10px; display: none; }
.q-validation-opts.show { display: block; }
.q-choice-opts { margin-top: 10px; display: none; }
.q-choice-opts.show { display: block; }
.toolbar { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 16px; }
.toolbar .field { margin-bottom: 0; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat .n { font-size: 26px; font-weight: 800; color: var(--brand); }
.stat .l { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }

/* --- Admin shell --- */
.admin-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.admin-nav .brand { font-weight: 800; color: var(--brand); font-size: 18px; text-decoration: none; }
.admin-nav .nav-right { display: flex; align-items: center; gap: 16px; }
.admin-layout { display: flex; min-height: calc(100vh - 56px); }
.admin-sidebar {
  width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 12px;
}
.admin-sidebar a {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 4px;
}
.admin-sidebar a:hover { background: var(--bg); }
.admin-sidebar a.active { background: var(--brand); color: #fff; }
.admin-content { flex: 1; padding: 32px; max-width: 920px; }
.lang-select { padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; }
.inline-form { display: inline; }

.site-footer { text-align: center; color: var(--muted); font-size: 13px; padding: 24px; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-state h2 { color: var(--ink); }

/* --- Landing --- */
.hero { text-align: center; padding: 60px 20px 40px; }
.hero h1 { font-size: 40px; line-height: 1.15; }
.hero p { font-size: 18px; color: var(--muted); max-width: 560px; margin: 16px auto 28px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 40px; }
.feature { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.feature h3 { font-size: 16px; }
.feature p { color: var(--muted); font-size: 14px; margin: 8px 0 0; }

@media (max-width: 640px) {
  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
  .hero h1 { font-size: 30px; }
}