:root {
  color-scheme: light;
  --text: #1f2933;
  --ink: var(--text);
  --muted: #667085;
  --border: #d9e0e7;
  --line: var(--border);
  --bg: #f7f8fa;
  --panel: #ffffff;
  --input-bg: #ffffff;
  --accent: #176b87;
  --danger: #b42318;
  --warn: #9a5b00;
  --nav-active-bg: #e8f3f5;
  --nav-active-text: #124e63;
  --button-bg: #ffffff;
  --details-bg: #176bdf;
  --details-border: #176bdf;
  --details-text: #ffffff;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --text: #e6edf3;
  --ink: var(--text);
  --muted: #9aa7b2;
  --border: #34424f;
  --line: var(--border);
  --bg: #0f1419;
  --panel: #171e25;
  --input-bg: #111820;
  --accent: #70c7dc;
  --danger: #e0564c;
  --warn: #f1bd5b;
  --nav-active-bg: #203642;
  --nav-active-text: #d7f6ff;
  --button-bg: #1d2630;
  --details-bg: #3b82f6;
  --details-border: #60a5fa;
  --details-text: #ffffff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
}
a { color: var(--accent); }
main { max-width: 1500px; margin: 28px auto; padding: 0 20px; }
h1 { font-size: 28px; margin: 0 0 20px; }
h2 { font-size: 20px; margin-top: 28px; }
.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 1500px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand { font-weight: 800; color: var(--ink); text-decoration: none; font-size: 20px; }
nav { display: flex; gap: 12px; flex: 1; flex-wrap: wrap; }
nav a { color: var(--ink); text-decoration: none; font-size: 14px; }
.nav-link {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 7px 10px;
}
.nav-link.active {
  background: var(--nav-active-bg);
  border-color: var(--line);
  color: var(--nav-active-text);
  font-weight: 800;
}
button, .button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--button-bg);
  color: var(--ink);
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}
button.danger, .button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
button.success, .button.success { background: #0f8a4b; border-color: #0f8a4b; color: #fff; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-success { background: #0f8a4b; border-color: #0f8a4b; color: #fff; }
.btn-secondary { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-details { background: var(--details-bg); border-color: var(--details-border); color: var(--details-text); }
.theme-toggle {
  white-space: nowrap;
  background: var(--button-bg);
}
.banner { padding: 11px 20px; font-weight: 700; border-bottom: 1px solid var(--line); }
.banner.danger { background: #fee4e2; color: var(--danger); }
.banner.warn { background: #fff4d6; color: var(--warn); }
.notice {
  border: 1px solid var(--line);
  border-radius: 6px;
  margin: 0 0 16px;
  padding: 10px 12px;
  font-weight: 700;
}
.notice.success { background: #e7f8ef; color: #0f6b3c; }
.notice.warn { background: #fff4d6; color: var(--warn); }
.notice.error { background: #fee4e2; color: var(--danger); }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--line);
}
th, td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}
th { color: var(--muted); font-size: 12px; text-transform: uppercase; }
.timestamp { white-space: nowrap; min-width: 190px; }
.followup-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 6px;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
}
.followup-badge-1 { background: #0f8a4b; }
.followup-badge-2 { background: #176bdf; }
.followup-badge-3 { background: #b7791f; }
.followup-badge-4 { background: #b42318; }
.actions { min-width: 300px; }
.actions-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}
.actions-row form { margin: 0; }
.actions-row .btn { white-space: nowrap; }
.empty { color: var(--muted); text-align: center; padding: 32px; }
input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 10px;
  font: inherit;
  background: var(--input-bg);
  color: var(--ink);
}
textarea {
  resize: vertical;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.5;
}
label { display: grid; gap: 6px; font-weight: 700; font-size: 14px; }
.templates, .edit, .search, .login { display: grid; gap: 16px; }
.filter-form {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  gap: 10px;
  margin-bottom: 16px;
}
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 12px 0;
  color: var(--ink);
  font-size: 14px;
}
.pagination-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.pagination-button,
.pagination button {
  background: #ffffff;
  color: #1f2937;
  border: 1px solid #cbd5e1;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font: inherit;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}
.pagination-button:hover,
.pagination button:hover:not(:disabled) {
  background: #f1f5f9;
}
.pagination button:disabled {
  background: #f8fafc;
  color: #94a3b8;
  border: 1px solid #dbe3ed;
  cursor: not-allowed;
  opacity: 1;
}
:root[data-theme="dark"] .pagination-button,
:root[data-theme="dark"] .pagination button {
  background: #2a3441;
  color: #e6edf3;
  border: 1px solid #3a4654;
}
:root[data-theme="dark"] .pagination-button:hover,
:root[data-theme="dark"] .pagination button:hover:not(:disabled) {
  background: #3a4654;
}
:root[data-theme="dark"] .pagination button:disabled {
  background: #1b2430;
  color: #6b7a8c;
  border: 1px solid #2a3441;
  cursor: not-allowed;
  opacity: 1;
}
.signature-editor {
  display: grid;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 16px;
}
.signature-editor h2,
.signature-editor p {
  margin: 0;
}
.template-card {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-left-width: 5px;
  border-radius: 6px;
  padding: 16px;
}
.template-card h2 {
  margin: 0;
  font-size: 18px;
}
.template-card-1 {
  background: #e6f4ea;
  border-color: #34a853;
}
.template-card-2 {
  background: #e8f0fe;
  border-color: #4285f4;
}
.template-card-3 {
  background: #fef3e6;
  border-color: #fb8c00;
}
.template-card-4 {
  background: #fce8e6;
  border-color: #ea4335;
}
:root[data-theme="dark"] .template-card-1 {
  background: color-mix(in srgb, #34a853 18%, var(--panel));
}
:root[data-theme="dark"] .template-card-2 {
  background: color-mix(in srgb, #4285f4 18%, var(--panel));
}
:root[data-theme="dark"] .template-card-3 {
  background: color-mix(in srgb, #fb8c00 18%, var(--panel));
}
:root[data-theme="dark"] .template-card-4 {
  background: color-mix(in srgb, #ea4335 18%, var(--panel));
}
.dynamic-fields {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-bottom: 20px;
  padding: 16px;
  font-size: 14px;
}
.dynamic-fields h2 {
  margin: 0 0 14px;
  font-size: 18px;
}
.dynamic-fields h3 {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
}
.dynamic-fields p {
  margin: 7px 0;
  line-height: 1.45;
}
.dynamic-field-groups {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(280px, 1.2fr);
  gap: 18px;
}
.dynamic-fields code {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--input-bg);
  padding: 2px 6px;
  color: var(--ink);
  font-size: 13px;
}
.search { grid-template-columns: 1fr auto; max-width: 680px; margin-bottom: 18px; }
.details {
  display: grid;
  grid-template-columns: 150px 1fr;
  background: var(--panel);
  border: 1px solid var(--line);
  margin-bottom: 20px;
}
.details dt, .details dd { margin: 0; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.details dt { color: var(--muted); font-weight: 700; }
.details.compact { grid-template-columns: 110px 1fr; margin-bottom: 12px; }
.email-body {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  margin: 16px 0;
  padding: 16px;
}
.email-body h3 { margin: 0 0 12px; }
.email-body pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: inherit;
  line-height: 1.45;
  margin: 0;
}
.muted { color: var(--muted); }
.login-page { min-height: 100vh; display: grid; place-items: center; }
.login {
  width: min(380px, calc(100vw - 32px));
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}
.error { color: var(--danger); font-weight: 700; }
.note {
  background: #eef7f6;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  margin-bottom: 18px;
}
code { white-space: pre-wrap; overflow-wrap: anywhere; }
.logs-table th:first-child,
.logs-table td:first-child {
  min-width: 230px;
  white-space: nowrap;
}

@media (max-width: 760px) {
  .topbar-inner { align-items: flex-start; flex-direction: column; }
  table { display: block; overflow-x: auto; }
  .page-head, .search, .filter-form { display: grid; grid-template-columns: 1fr; }
  .pagination { align-items: flex-start; flex-direction: column; }
  .dynamic-field-groups { grid-template-columns: 1fr; }
  .details { grid-template-columns: 1fr; }
  .actions { min-width: 0; }
  .actions-row { flex-wrap: wrap; }
}