/* ==========================================================================
   Design tokens
   ========================================================================== */

:root {
  --ink: #171b20;
  --ink-soft: #5c6570;
  --ink-faint: #949ba6;
  --paper: #f3f4f6;
  --surface: #ffffff;
  --surface-sunk: #edeff2;
  --line: #e1e4e8;
  --line-strong: #cbd0d6;

  --accent: #1b4b66;
  --accent-strong: #123549;
  --accent-soft: #e4eef2;
  --accent-ink: #ffffff;

  --good: #227a53;
  --good-soft: #dff3e8;
  --warn: #a6721e;
  --warn-soft: #fbf0dc;
  --danger: #b23b34;
  --danger-soft: #fbe6e4;
  --info: #3462a6;
  --info-soft: #e6edf8;

  --shadow-sm: 0 1px 2px rgba(23, 27, 32, 0.06);
  --shadow-md: 0 4px 16px rgba(23, 27, 32, 0.08);
  --shadow-lg: 0 12px 32px rgba(23, 27, 32, 0.12);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;

  --sidebar-width: 232px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #edeff2;
    --ink-soft: #a8b0bb;
    --ink-faint: #6b7480;
    --paper: #14171b;
    --surface: #1b1f24;
    --surface-sunk: #22262c;
    --line: #2c3138;
    --line-strong: #3a4048;

    --accent: #6fb3d2;
    --accent-strong: #8fc6e0;
    --accent-soft: #1e3540;
    --accent-ink: #0c1c22;

    --good: #57b98a;
    --good-soft: #1c3327;
    --warn: #d9a44c;
    --warn-soft: #3a2e14;
    --danger: #e2685f;
    --danger-soft: #3a1e1c;
    --info: #7fa3de;
    --info-soft: #1d2a3e;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
  }
}

:root[data-theme="dark"] {
  --ink: #edeff2;
  --ink-soft: #a8b0bb;
  --ink-faint: #6b7480;
  --paper: #14171b;
  --surface: #1b1f24;
  --surface-sunk: #22262c;
  --line: #2c3138;
  --line-strong: #3a4048;
  --accent: #6fb3d2;
  --accent-strong: #8fc6e0;
  --accent-soft: #1e3540;
  --accent-ink: #0c1c22;
  --good: #57b98a;
  --good-soft: #1c3327;
  --warn: #d9a44c;
  --warn-soft: #3a2e14;
  --danger: #e2685f;
  --danger-soft: #3a1e1c;
  --info: #7fa3de;
  --info-soft: #1d2a3e;
}

:root[data-theme="light"] {
  --ink: #171b20;
  --ink-soft: #5c6570;
  --ink-faint: #949ba6;
  --paper: #f3f4f6;
  --surface: #ffffff;
  --surface-sunk: #edeff2;
  --line: #e1e4e8;
  --line-strong: #cbd0d6;
  --accent: #1b4b66;
  --accent-strong: #123549;
  --accent-soft: #e4eef2;
  --accent-ink: #ffffff;
  --good: #227a53;
  --good-soft: #dff3e8;
  --warn: #a6721e;
  --warn-soft: #fbf0dc;
  --danger: #b23b34;
  --danger-soft: #fbe6e4;
  --info: #3462a6;
  --info-soft: #e6edf8;
}

/* ==========================================================================
   Reset & base
   ========================================================================== */

* {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
}

body {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--ink);
  background: var(--paper);
  margin: 0;
}

h1, h2, h3, h4 {
  font-weight: 650;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0 0 0.35em;
  color: var(--ink);
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.0625rem; }
h3 { font-size: 0.9375rem; }

p { margin: 0 0 0.75em; }

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.placeholder {
  color: var(--ink-faint);
  font-style: italic;
}

.tabular {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   App shell (staff pages: sidebar + topbar + content)
   ========================================================================== */

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0 0.5rem 1.5rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.sidebar-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.sidebar-firm {
  font-size: 0.85rem;
  font-weight: 650;
  color: var(--ink);
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 0.875rem;
  font-weight: 500;
}
.nav-link:hover {
  background: var(--surface-sunk);
  color: var(--ink);
  text-decoration: none;
}
.nav-link.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.nav-icon {
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-footer {
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
  margin-top: 0.5rem;
}

.sidebar-user {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.15rem;
}

.sidebar-logout {
  font-size: 0.8125rem;
  color: var(--ink-faint);
}
.sidebar-logout:hover { color: var(--danger); }

.main-col {
  flex: 1;
  min-width: 0;
}

.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 2rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
  margin-bottom: 0.15rem;
}

.topbar h1 { margin: 0; }

.content {
  padding: 1.75rem 2rem 4rem;
  max-width: 1080px;
}

@media (max-width: 860px) {
  .app-shell { flex-direction: column; }
  .sidebar {
    width: 100%;
    height: auto;
    position: static;
    flex-direction: row;
    align-items: center;
    padding: 0.75rem 1rem;
    overflow-x: auto;
  }
  .sidebar-brand { border-bottom: none; padding: 0 0.75rem 0 0; margin-bottom: 0; border-right: 1px solid var(--line); }
  .nav-list { flex-direction: row; }
  .sidebar-footer { border-top: none; margin-top: 0; padding-top: 0; padding-left: 0.75rem; border-left: 1px solid var(--line); white-space: nowrap; }
  .topbar, .content { padding-left: 1.25rem; padding-right: 1.25rem; }
}

/* ==========================================================================
   Standalone page header (client workspace — single persona, no sidebar)
   ========================================================================== */

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 2rem;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 5;
}

.page-header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-header-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.82rem;
  flex-shrink: 0;
}

.page-header-titles h1 { margin: 0; font-size: 1.1rem; }

.page-content {
  max-width: 880px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

@media (max-width: 640px) {
  .page-header, .page-content { padding-left: 1.1rem; padding-right: 1.1rem; }
}

/* ==========================================================================
   Auth / standalone pages (login, verify)
   ========================================================================== */

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2rem;
}

.auth-mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.auth-card h1 { font-size: 1.2rem; }
.auth-card p { color: var(--ink-soft); font-size: 0.875rem; }

.auth-switch {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
  color: var(--ink-faint);
  text-align: center;
}

.simple-page {
  max-width: 460px;
  margin: 4rem auto;
  padding: 0 1.25rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.12s ease, border-color 0.12s ease, color 0.12s ease;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover:not(:disabled) { background: var(--accent-strong); }

.btn-secondary {
  background: var(--surface);
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn-secondary:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }

.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
}
.btn-ghost:hover:not(:disabled) { background: var(--surface-sunk); color: var(--ink); }

.btn-danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}
.btn-danger:hover:not(:disabled) { background: var(--danger-soft); }

.btn-sm { padding: 0.32rem 0.6rem; font-size: 0.78rem; }

/* ==========================================================================
   Forms
   ========================================================================== */

.field { margin-bottom: 1rem; }

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="date"],
input[type="password"],
input[type="file"],
select,
textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--ink);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}

textarea { resize: vertical; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.9rem 1rem;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.checkbox-row input { width: auto; }

.filter-form {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 0.75rem 1rem;
}
.filter-form .field { margin-bottom: 0; }
.filter-form select,
.filter-form input { min-width: 160px; }

/* ==========================================================================
   Cards & panels
   ========================================================================== */

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
  margin-bottom: 1.5rem;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.panel-head h2 { margin: 0; }

.section-block { margin-bottom: 2.25rem; }
.section-block:last-child { margin-bottom: 0; }

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.1rem;
  margin-bottom: 0.75rem;
  background: var(--surface);
}
.card:last-child { margin-bottom: 0; }

.card-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.card-meta {
  color: var(--ink-faint);
  font-size: 0.82em;
  margin-top: 0.2rem;
}

/* ==========================================================================
   Stat tiles
   ========================================================================== */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.9rem;
}

.stat-tile {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.1;
}

.stat-label {
  color: var(--ink-soft);
  font-size: 0.8rem;
  margin-top: 0.3rem;
}

.stat-tile.attention .stat-value { color: var(--warn); }

/* ==========================================================================
   Badges / status pills
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.14rem 0.55rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--surface-sunk);
  color: var(--ink-soft);
}

.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status-badge {
  display: inline-block;
  padding: 0.14rem 0.6rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--surface-sunk);
  color: var(--ink-soft);
}

.status-pending, .status-needs_better_copy { background: var(--warn-soft); color: var(--warn); }
.status-received { background: var(--info-soft); color: var(--info); }
.status-approved { background: var(--good-soft); color: var(--good); }
.status-rejected { background: var(--danger-soft); color: var(--danger); }

/* ==========================================================================
   Alerts
   ========================================================================== */

.alert-block {
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-top: 0.9rem;
}
.alert-block strong { font-size: 0.85rem; }
.alert-block ul {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.85rem;
}
.alert-block li { margin-bottom: 0.2rem; }

.alert-overdue { background: var(--danger-soft); color: var(--danger); }
.alert-overdue strong { color: var(--danger); }
.alert-due-soon { background: var(--warn-soft); color: var(--warn); }
.alert-due-soon strong { color: var(--warn); }

.page-error-banner {
  background: var(--danger-soft);
  color: var(--danger);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
}
.page-error-banner a { color: var(--danger); font-weight: 700; }

/* ==========================================================================
   Tables
   ========================================================================== */

.table-scroll { overflow-x: auto; }

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.table th, .table td {
  text-align: left;
  padding: 0.6rem 0.7rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.table th {
  color: var(--ink-faint);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.table tbody tr:hover { background: var(--surface-sunk); }

/* ==========================================================================
   Modal / dialog
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 18, 22, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 50;
}
.modal-overlay[hidden] { display: none; }

.modal {
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.75rem;
}

.modal-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.1rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.modal-message {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-top: 0.6rem;
}
.modal-message.error { color: var(--danger); }

/* ==========================================================================
   Engagement / request cards, checklist rows
   ========================================================================== */

.engagement-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.engagement-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.6rem;
}

.duplicate-form, .new-engagement-form {
  margin-top: 0.75rem;
  padding: 0.9rem 1rem;
  background: var(--surface-sunk);
  border-radius: var(--radius-sm);
}
.duplicate-form .field, .new-engagement-form .field { margin-bottom: 0.65rem; }

.dup-message {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 0.4rem;
  display: block;
}

.checklist-item-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.checklist-item-row .item-label { flex: 1; }

.item-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.item-row {
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}
.item-row:first-child { border-top: none; padding-top: 0; }

.uploads-list {
  margin: 0.5rem 0 0;
  padding-left: 0;
  list-style: none;
  font-size: 0.85rem;
}
.uploads-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.3rem;
  color: var(--ink-soft);
}

.review-control {
  margin-top: 0.65rem;
  padding: 0.75rem;
  background: var(--surface-sunk);
  border-radius: var(--radius-sm);
}

.review-comment {
  width: 100%;
  min-height: 2.5rem;
  box-sizing: border-box;
  margin-bottom: 0.5rem;
}

.review-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.review-message {
  display: block;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 0.4rem;
}

/* ==========================================================================
   Upload dropzone
   ========================================================================== */

.upload-control { margin-top: 0.6rem; }

.upload-dropzone {
  display: block;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.12s ease, background-color 0.12s ease;
}
.upload-dropzone.drag-over {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.upload-progress {
  height: 5px;
  background: var(--surface-sunk);
  border-radius: 3px;
  margin-top: 0.5rem;
  overflow: hidden;
}
.upload-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.15s ease;
}

.upload-message {
  display: block;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 0.3rem;
}

/* ==========================================================================
   Activity feed
   ========================================================================== */

.activity-item {
  padding: 0.55rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
}
.activity-item:first-child { border-top: none; padding-top: 0; }

.activity-time {
  color: var(--ink-faint);
  font-size: 0.8em;
}

/* ==========================================================================
   Empty states
   ========================================================================== */

.empty-state {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--ink-faint);
  font-size: 0.875rem;
}