:root {
  color-scheme: light;
  --bg: #f5f7f8;
  --surface: #ffffff;
  --surface-soft: #edf2f1;
  --ink: #182321;
  --muted: #60706c;
  --line: #d9e2df;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --warn: #b45309;
  --ok: #2563eb;
  --shadow: 0 18px 45px rgba(25, 45, 42, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

button.secondary {
  background: #dfe8e5;
  color: var(--ink);
}

button.secondary:hover {
  background: #ccd8d5;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 24px;
  border-right: 1px solid var(--line);
  background: #fbfcfc;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand span {
  color: var(--muted);
  font-size: 13px;
}

.nav-list {
  display: grid;
  gap: 6px;
}

.nav-list a {
  padding: 11px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
}

.nav-list a.active,
.nav-list a:hover {
  background: var(--surface-soft);
  color: var(--ink);
}

.auth-panel {
  display: grid;
  gap: 12px;
  margin-top: auto;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.auth-panel h2,
.auth-panel p {
  margin: 0;
}

.auth-panel p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.user-select-label {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#active-user {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--ink);
  font: inherit;
}

.content {
  display: grid;
  gap: 22px;
  align-content: start;
  padding: 34px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.topbar h1,
.panel-header h2,
.settings-band h2,
.audit-band h2 {
  margin: 0;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.session-pill,
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

.session-pill.locked,
.status-pill.pending {
  background: #fff7ed;
  color: var(--warn);
}

.session-pill.ready,
.status-pill.done {
  background: #e0f2fe;
  color: var(--ok);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(360px, 0.95fr) minmax(320px, 1.05fr);
  gap: 22px;
}

.invoice-panel,
.preview-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.invoice-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 0 0 22px;
}

.invoice-summary div {
  min-height: 76px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfc;
}

.invoice-summary dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.invoice-summary dd {
  margin: 6px 0 0;
  line-height: 1.35;
}

.issue-form {
  display: grid;
  gap: 10px;
}

.issue-form label,
.settings-grid label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.money-input {
  display: flex;
  align-items: center;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.plain-input {
  min-height: 48px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: 0;
  background: #fff;
  color: var(--ink);
  font-weight: 800;
}

.status-text {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.money-input span {
  padding: 0 14px;
  color: var(--muted);
  font-weight: 800;
}

.money-input input {
  width: 100%;
  min-height: 52px;
  border: 0;
  outline: 0;
  font-size: 22px;
  font-weight: 800;
}

pre {
  min-height: 310px;
  margin: 0;
  padding: 16px;
  overflow: auto;
  border-radius: 8px;
  background: #10201d;
  color: #d9f7ef;
  font-size: 13px;
  line-height: 1.5;
}

.settings-band,
.audit-band {
  display: grid;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.settings-grid input,
textarea {
  width: 100%;
  margin-top: 7px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: 0;
  background: #fbfcfc;
  color: var(--ink);
}

textarea {
  resize: vertical;
  line-height: 1.5;
}

.email-config-form {
  display: grid;
  gap: 14px;
}

.email-config-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.email-config-grid .full-width {
  grid-column: 1 / -1;
}

.email-config-grid input,
.email-config-grid textarea {
  width: 100%;
  margin-top: 7px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: 0;
  background: #fbfcfc;
  color: var(--ink);
}

.email-config-grid textarea {
  resize: vertical;
  line-height: 1.5;
  font-family: inherit;
}

.email-preview-box {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfc;
}

#audit-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
}

@media (max-width: 980px) {
  .app-shell,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .settings-grid,
  .invoice-summary,
  .email-config-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .content,
  .sidebar {
    padding: 18px;
  }

  .topbar,
  .panel-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .settings-grid,
  .invoice-summary,
  .email-config-grid {
    grid-template-columns: 1fr;
  }
}