/* ── LeadFuel UI Component Library ─────────────────────────────────────────
   Reusable component classes built on top of leadfuel-design-tokens.css.
   Vendored byte-identical into each app's static/. Source of truth =
   novahub/static/leadfuel-ui.css.

   Pattern: every class prefixed `.lf-*` to avoid colliding with each
   app's existing bespoke `.app-card / .start-btn / .btn-primary` etc.
   That bespoke layer can be retired incrementally without breaking
   pages mid-rollout.

   USAGE (in base.html, AFTER the design-tokens import):
     <link rel="stylesheet" href="{{ url_for('static', filename='leadfuel-ui.css') }}">
   ───────────────────────────────────────────────────────────────────── */

/* ── Page shell ──────────────────────────────────────────────────── */
body.lf {
  font-family: var(--lf-font);
  font-size: var(--lf-fs-md);
  line-height: var(--lf-lh-normal);
  color: var(--lf-ink);
  background: var(--lf-bg);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.lf-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--lf-space-6);
}

.lf-wrap-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--lf-space-6);
}

/* ── Cards ───────────────────────────────────────────────────────── */
.lf-card {
  background: var(--lf-surface);
  border: 1px solid var(--lf-border);
  border-radius: var(--lf-radius);
  box-shadow: var(--lf-shadow);
  padding: var(--lf-space-6);
  margin-bottom: var(--lf-space-4);
}

.lf-card-flat {
  background: var(--lf-surface);
  border: 1px solid var(--lf-border);
  border-radius: var(--lf-radius);
  padding: var(--lf-space-6);
  margin-bottom: var(--lf-space-4);
}

.lf-card-hdr {
  /* Black header bar that sits flush at the top of the card.
     Cards using this pattern should set padding:0 + overflow:hidden
     on the parent .lf-card (the templates already do).  No negative
     margins — those caused the header to overflow when the card had
     no padding (visible cropping at card edges). */
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--lf-space-4);
  padding: var(--lf-space-4) var(--lf-space-6);
  background: var(--lf-ink);
  border-radius: var(--lf-radius) var(--lf-radius) 0 0;
  color: #fff;
}

/* Convenience body inside a header-bearing card. Restores the
   padding the parent .lf-card lost when it switched to padding:0. */
.lf-card-body {
  padding: var(--lf-space-6);
}

.lf-card-hdr h2,
.lf-card-hdr h3 {
  margin: 0;
  font-size: var(--lf-fs-md);
  font-weight: var(--lf-fw-bold);
  color: #fff;
}

.lf-card-hdr .lf-card-hdr-accent {
  color: var(--lf-accent);
  font-size: var(--lf-fs-xs);
  font-weight: var(--lf-fw-bold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lf-card-grid {
  display: grid;
  gap: var(--lf-space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ── Tile launcher ───────────────────────────────────────────────
   Used on every app's /app page as a top-of-page hub showing every
   workspace section as a tile.  Mirrors NovaHub's home-cards pattern
   so customers can launch any section with one click instead of
   hunting through the hamburger.
   ──────────────────────────────────────────────────────────────── */
/* Two-column form row that collapses to a single column on mobile.
   Sidebar-style: a narrow label/picker column + a wider main column. */
.lf-form-row-2col {
  grid-template-columns: 240px 1fr;
}
@media (max-width: 640px) {
  .lf-form-row-2col { grid-template-columns: 1fr; }
}

/* Definition-list two-column layout (label / value pairs). Collapses
   to single-column on mobile so values aren't crushed into narrow
   columns next to long labels. */
.lf-dl-2col {
  grid-template-columns: 220px 1fr;
}
@media (max-width: 640px) {
  .lf-dl-2col {
    grid-template-columns: 1fr;
    gap: 4px 0 !important;
  }
  .lf-dl-2col dt { font-weight: var(--lf-fw-semibold); }
  .lf-dl-2col dd { margin: 0 0 var(--lf-space-3); padding: 0; }
}

.lf-tile-grid {
  display: grid;
  gap: var(--lf-space-4);
  grid-template-columns: repeat(4, 1fr);
}

/* ── Native <dialog> popover ─────────────────────────────────
   Lightweight modal for one-shot "do a thing" forms (Refine
   persona, Draft from posts, Add example, Delete confirm).
   Uses the browser's native <dialog> for accessibility + focus
   trapping — no extra JS framework.  Pattern:

     <button onclick="document.getElementById('my-dlg').showModal()">
       Open dialog
     </button>
     <dialog id="my-dlg" class="lf-dialog">
       <form method="dialog">
         <div class="lf-dialog-hdr">
           <h3>Dialog title</h3>
           <button class="lf-dialog-close" value="cancel">×</button>
         </div>
         <div class="lf-dialog-body">…content…</div>
         <div class="lf-dialog-foot">
           <button value="cancel" class="lf-btn">Cancel</button>
           <button value="confirm" class="lf-btn lf-btn-primary">Confirm</button>
         </div>
       </form>
     </dialog>
   ───────────────────────────────────────────────────────────── */
.lf-dialog {
  border: 1px solid var(--lf-border);
  border-radius: 14px;
  padding: 0;
  max-width: 560px;
  width: 100%;
  background: var(--lf-surface);
  color: var(--lf-ink);
  box-shadow: 0 24px 60px rgba(11, 8, 28, 0.35);
}
.lf-dialog::backdrop {
  background: rgba(11, 8, 28, 0.55);
  backdrop-filter: blur(2px);
}
.lf-dialog form { margin: 0; }
.lf-dialog-hdr {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--lf-space-3);
  padding: var(--lf-space-4) var(--lf-space-6);
  border-bottom: 1px solid var(--lf-border);
}
.lf-dialog-hdr h3 {
  margin: 0;
  font-size: var(--lf-fs-lg);
  font-weight: var(--lf-fw-bold);
  color: var(--lf-ink);
}
.lf-dialog-close {
  background: transparent;
  border: 1px solid transparent;
  width: 32px; height: 32px;
  border-radius: 8px;
  color: var(--lf-muted);
  font-size: 20px; line-height: 1;
  cursor: pointer;
  font-family: inherit;
}
.lf-dialog-close:hover {
  border-color: var(--lf-border);
  color: var(--lf-ink);
}
.lf-dialog-body {
  padding: var(--lf-space-5) var(--lf-space-6);
  max-height: 70vh;
  overflow-y: auto;
}
.lf-dialog-body p { margin: 0 0 var(--lf-space-3); color: var(--lf-ink-soft); }
.lf-dialog-body label {
  display: block;
  font-size: var(--lf-fs-sm);
  font-weight: var(--lf-fw-semibold);
  color: var(--lf-ink);
  margin: var(--lf-space-3) 0 var(--lf-space-2);
}
.lf-dialog-body input[type=text],
.lf-dialog-body input[type=url],
.lf-dialog-body textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--lf-border);
  border-radius: 8px;
  font: inherit;
  background: #fff;
  color: var(--lf-ink);
  box-sizing: border-box;
}
.lf-dialog-foot {
  display: flex; align-items: center; justify-content: flex-end;
  gap: var(--lf-space-2);
  padding: var(--lf-space-4) var(--lf-space-6);
  border-top: 1px solid var(--lf-border);
  background: var(--lf-bg-soft);
  flex-wrap: wrap;
}
.lf-dialog-foot .lf-dialog-foot-left {
  margin-right: auto;
  font-size: var(--lf-fs-xs);
  color: var(--lf-muted);
}
@media (max-width: 540px) {
  .lf-dialog { margin: 0; border-radius: 0; max-width: 100%; height: 100%; max-height: 100vh; }
  .lf-dialog-body { max-height: none; flex: 1; }
  .lf-dialog-foot { flex-direction: column; align-items: stretch; }
  .lf-dialog-foot .lf-btn { width: 100%; justify-content: center; }
  .lf-dialog-foot .lf-dialog-foot-left { margin: 0 0 var(--lf-space-2); text-align: center; }
}

/* Inline 5-tile mini-stepper used on the buckets list view (one
   strip per bucket card).  Same visual language as the bucket-edit
   page's stepper but compact — single row on desktop, wraps on
   narrow viewports. */
.lf-bucket-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--lf-space-2);
}
@media (max-width: 600px) {
  .lf-bucket-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 380px) {
  .lf-bucket-steps { grid-template-columns: 1fr; }
}
.lf-bucket-step {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 10px;
  background: #fff;
  border: 1px solid var(--lf-border);
  border-radius: var(--lf-radius-sm);
  font-size: var(--lf-fs-xs);
  font-weight: var(--lf-fw-semibold);
  color: var(--lf-ink-soft);
  text-decoration: none;
  transition: border-color var(--lf-transition), background var(--lf-transition);
}
.lf-bucket-step:hover {
  border-color: var(--lf-accent);
  background: var(--lf-bg-soft);
}
.lf-bucket-step-done {
  background: var(--lf-success-soft);
  border-color: #6ee7b7;
  color: #065f46;
}
.lf-bucket-step-done:hover {
  border-color: var(--lf-success);
  background: #d1fae5;
}
.lf-bucket-step-icon { font-size: 13px; line-height: 1; }
.lf-bucket-step-label { flex: 1; }
.lf-bucket-step-state {
  font-size: 13px; line-height: 1;
  color: #9ca3af;
}
.lf-bucket-step-done .lf-bucket-step-state {
  color: var(--lf-success);
  font-weight: var(--lf-fw-bold);
}
@media (max-width: 980px) {
  .lf-tile-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .lf-tile-grid { grid-template-columns: 1fr; }
}

.lf-tile {
  display: flex;
  flex-direction: column;
  gap: var(--lf-space-1);
  padding: var(--lf-space-4);
  background: var(--lf-surface);
  border: 1px solid var(--lf-border);
  border-radius: var(--lf-radius);
  text-decoration: none;
  color: var(--lf-ink);
  transition: border-color var(--lf-transition),
              box-shadow var(--lf-transition),
              transform var(--lf-transition);
}
.lf-tile:hover {
  border-color: var(--lf-accent);
  box-shadow: var(--lf-shadow);
  transform: translateY(-1px);
}
.lf-tile-active {
  border-color: var(--lf-accent);
  background: var(--lf-accent-soft);
}
.lf-tile-icon {
  font-size: 22px;
  line-height: 1;
  margin-bottom: var(--lf-space-1);
}
.lf-tile-title {
  font-size: var(--lf-fs-md);
  font-weight: var(--lf-fw-bold);
  color: var(--lf-ink);
}
.lf-tile-blurb {
  font-size: var(--lf-fs-sm);
  color: var(--lf-muted);
  line-height: var(--lf-lh-snug);
}

/* ── Buttons ─────────────────────────────────────────────────────── */
.lf-btn,
.lf-btn-primary,
.lf-btn-secondary,
.lf-btn-danger,
.lf-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--lf-space-2);
  padding: 10px 18px;
  font: inherit;
  font-size: var(--lf-fs-sm);
  font-weight: var(--lf-fw-semibold);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--lf-radius-sm);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--lf-transition),
              border-color var(--lf-transition),
              color var(--lf-transition),
              box-shadow var(--lf-transition);
}

.lf-btn-primary {
  background: var(--lf-accent);
  color: #fff;
  border-color: var(--lf-accent);
}
.lf-btn-primary:hover {
  background: var(--lf-accent-hover);
  border-color: var(--lf-accent-hover);
}
.lf-btn-primary:focus-visible {
  outline: none;
  box-shadow: var(--lf-shadow-focus);
}

.lf-btn-secondary {
  background: var(--lf-surface);
  color: var(--lf-ink);
  border-color: var(--lf-border);
}
.lf-btn-secondary:hover {
  background: var(--lf-bg-soft);
}

.lf-btn-danger {
  background: var(--lf-surface);
  color: var(--lf-accent-hover);
  border-color: var(--lf-accent-line);
}
.lf-btn-danger:hover {
  background: var(--lf-accent-soft);
}

.lf-btn-ghost {
  background: transparent;
  color: var(--lf-ink-soft);
  border-color: transparent;
}
.lf-btn-ghost:hover {
  background: var(--lf-bg-soft);
}

.lf-btn-sm {
  padding: 6px 12px;
  font-size: var(--lf-fs-xs);
}

.lf-btn-lg {
  padding: 14px 24px;
  font-size: var(--lf-fs-md);
}

/* ── Chips / pills / badges ──────────────────────────────────────── */
.lf-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--lf-space-1);
  padding: 4px 10px;
  font-size: var(--lf-fs-xs);
  font-weight: var(--lf-fw-semibold);
  line-height: 1;
  border-radius: var(--lf-radius-pill);
  background: var(--lf-bg-soft);
  color: var(--lf-muted);
  border: 1px solid var(--lf-border);
}

.lf-chip-success {
  background: var(--lf-success-soft);
  color: var(--lf-success-dark);
  border-color: var(--lf-success-line);
}

.lf-chip-warning {
  background: var(--lf-warning-soft);
  color: var(--lf-warning-dark);
  border-color: var(--lf-warning-line);
}

.lf-chip-danger {
  background: var(--lf-accent-soft);
  color: var(--lf-accent-hover);
  border-color: var(--lf-accent-line);
}

.lf-chip-info {
  background: var(--lf-info-soft);
  color: var(--lf-info-dark);
  border-color: var(--lf-info-line);
}

/* ── Forms ───────────────────────────────────────────────────────── */
.lf-field {
  display: flex;
  flex-direction: column;
  gap: var(--lf-space-2);
  margin-bottom: var(--lf-space-4);
}

.lf-label {
  font-size: var(--lf-fs-sm);
  font-weight: var(--lf-fw-semibold);
  color: var(--lf-ink);
}

.lf-help {
  font-size: var(--lf-fs-xs);
  color: var(--lf-muted);
}

.lf-input,
.lf-textarea,
.lf-select {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  font-size: var(--lf-fs-sm);
  color: var(--lf-ink);
  background: var(--lf-surface);
  border: 1px solid var(--lf-border);
  border-radius: var(--lf-radius-sm);
  box-sizing: border-box;
  transition: border-color var(--lf-transition),
              box-shadow var(--lf-transition);
}

.lf-input:focus,
.lf-textarea:focus,
.lf-select:focus {
  outline: none;
  border-color: var(--lf-accent);
  box-shadow: var(--lf-shadow-focus);
}

.lf-textarea {
  min-height: 80px;
  resize: vertical;
  font-family: var(--lf-font);
}

/* ── Tables ──────────────────────────────────────────────────────── */
.lf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--lf-fs-sm);
}

.lf-table th {
  text-align: left;
  padding: var(--lf-space-3) var(--lf-space-4);
  font-size: var(--lf-fs-xs);
  font-weight: var(--lf-fw-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--lf-muted);
  background: var(--lf-bg-soft);
  border-bottom: 1px solid var(--lf-border);
}

.lf-table td {
  padding: var(--lf-space-3) var(--lf-space-4);
  border-bottom: 1px solid var(--lf-border-soft);
  vertical-align: middle;
  color: var(--lf-ink);
}

.lf-table tbody tr:hover {
  background: var(--lf-bg-soft);
}

.lf-table tbody tr:last-child td {
  border-bottom: none;
}

/* ── Empty states ────────────────────────────────────────────────── */
.lf-empty {
  text-align: center;
  padding: var(--lf-space-12) var(--lf-space-6);
  color: var(--lf-muted);
  font-size: var(--lf-fs-sm);
}

.lf-empty-icon {
  font-size: var(--lf-fs-2xl);
  margin-bottom: var(--lf-space-4);
}

.lf-empty-title {
  font-size: var(--lf-fs-lg);
  font-weight: var(--lf-fw-semibold);
  color: var(--lf-ink);
  margin-bottom: var(--lf-space-2);
}

.lf-empty-body {
  margin-bottom: var(--lf-space-6);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Type utilities ──────────────────────────────────────────────── */
.lf-h1 { font-size: var(--lf-fs-2xl); font-weight: var(--lf-fw-bold); line-height: var(--lf-lh-tight); color: var(--lf-ink); margin: 0 0 var(--lf-space-4); }
.lf-h2 { font-size: var(--lf-fs-xl); font-weight: var(--lf-fw-bold); line-height: var(--lf-lh-tight); color: var(--lf-ink); margin: 0 0 var(--lf-space-3); }
.lf-h3 { font-size: var(--lf-fs-lg); font-weight: var(--lf-fw-semibold); color: var(--lf-ink); margin: 0 0 var(--lf-space-2); }

.lf-muted { color: var(--lf-muted); }
.lf-muted-soft { color: var(--lf-muted-soft); }
.lf-small { font-size: var(--lf-fs-xs); }
.lf-mono { font-family: var(--lf-font-mono); }

.lf-eyebrow {
  display: inline-block;
  font-size: var(--lf-fs-xs);
  font-weight: var(--lf-fw-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lf-accent);
}

/* ── Status banners ──────────────────────────────────────────────── */
.lf-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--lf-space-4);
  padding: var(--lf-space-3) var(--lf-space-5);
  font-size: var(--lf-fs-sm);
  font-weight: var(--lf-fw-semibold);
  border-radius: var(--lf-radius-sm);
  margin-bottom: var(--lf-space-4);
}

.lf-banner-info {
  background: var(--lf-info-soft);
  color: var(--lf-info-dark);
  border: 1px solid var(--lf-info-line);
}

.lf-banner-success {
  background: var(--lf-success-soft);
  color: var(--lf-success-dark);
  border: 1px solid var(--lf-success-line);
}

.lf-banner-warning {
  background: var(--lf-warning-soft);
  color: var(--lf-warning-dark);
  border: 1px solid var(--lf-warning-line);
}

.lf-banner-danger {
  background: var(--lf-accent-soft);
  color: var(--lf-accent-hover);
  border: 1px solid var(--lf-accent-line);
}

/* Admin-impersonation banner mirrors the existing NovaHub orange bar */
.lf-banner-impersonate {
  background: #ff7a00;
  color: #fff;
  border: none;
  font-weight: var(--lf-fw-bold);
}

/* ── Stack + cluster utility ─────────────────────────────────────── */
.lf-stack { display: flex; flex-direction: column; }
.lf-stack-1 { gap: var(--lf-space-1); }
.lf-stack-2 { gap: var(--lf-space-2); }
.lf-stack-3 { gap: var(--lf-space-3); }
.lf-stack-4 { gap: var(--lf-space-4); }
.lf-stack-6 { gap: var(--lf-space-6); }

.lf-cluster { display: flex; flex-wrap: wrap; align-items: center; }
.lf-cluster-2 { gap: var(--lf-space-2); }
.lf-cluster-3 { gap: var(--lf-space-3); }
.lf-cluster-4 { gap: var(--lf-space-4); }

.lf-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--lf-space-4);
}

.lf-grow { flex: 1; }

/* ── Responsive niceties ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .lf-wrap, .lf-wrap-narrow { padding: 0 var(--lf-space-4); }
  .lf-card { padding: var(--lf-space-4); }
  .lf-row { flex-wrap: wrap; }
}