/* ================================================================
   EveryAI – Use Cases page
   Page-scoped styles for use-cases.html. Tokens, buttons, navbar,
   hero, pagination and footer come from style.css; everything new
   here is prefixed .uc- to stay out of the way of other pages.
   ================================================================ */

/* ── Nav state for the current page ── */
.nav-link.is-active {
  color: var(--text-primary);
  background: var(--bg-card);
}

/* ── Section backgrounds ── */
.uc-library-section {
  background: var(--bg-base);
}

.uc-section-alt {
  background: var(--bg-surface);
}

/* ================================================================
   LIBRARY CONTROLS
   ================================================================ */
.uc-controls {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 36px;
}

/* Source switch (All / Bots / Muse) */
.uc-source-switch {
  display: inline-flex;
  align-self: center;
  gap: 4px;
  padding: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  backdrop-filter: blur(10px);
}

.uc-source-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.uc-source-btn:hover {
  color: var(--text-primary);
}

.uc-source-btn.is-active {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.uc-source-count {
  padding: 1px 8px;
  border-radius: var(--radius-full);
  background: rgba(148, 163, 184, 0.18);
  font-size: 0.72rem;
  font-weight: 700;
}

.uc-source-btn.is-active .uc-source-count {
  background: rgba(255, 255, 255, 0.25);
}

/* Search */
.uc-search {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 560px;
  width: 100%;
  margin: 0 auto;
  padding: 4px 6px 4px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.uc-search:focus-within {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-sm);
}

.uc-search-icon {
  display: flex;
  color: var(--text-muted);
}

.uc-search-input {
  flex: 1;
  min-width: 0;
  padding: 10px 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.uc-search-input::placeholder {
  color: var(--text-muted);
}

.uc-search-clear {
  padding: 6px 10px;
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.uc-search-clear:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

/* Filter groups */
.uc-filter-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.uc-filter-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.uc-chip-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

.uc-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.uc-chip:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.uc-chip.is-active {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  border-color: transparent;
  color: #fff;
}

.uc-chip-count {
  opacity: 0.7;
  font-size: 0.72rem;
}

.uc-chip.is-bot {
  border-style: dashed;
}

/* Toolbar */
.uc-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}

.uc-toolbar-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.uc-result-count {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.uc-result-count strong {
  color: var(--text-primary);
}

.uc-updated {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.uc-updated::before {
  content: '●';
  margin-right: 6px;
  color: var(--accent-1);
  font-size: 0.6rem;
}

.uc-toolbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.uc-reset-btn {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.uc-reset-btn:hover {
  border-color: var(--accent-1);
  color: var(--text-primary);
}

/* ================================================================
   CARDS
   ================================================================ */
.uc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.uc-card {
  --uc-accent: var(--accent-1);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  animation: ucCardIn 0.35s ease both;
}

.uc-card.is-muse {
  --uc-accent: var(--accent-pink);
}

.uc-card:hover {
  border-color: var(--uc-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.uc-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, transparent, var(--uc-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.uc-card:hover::before {
  opacity: 1;
}

@keyframes ucCardIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .uc-card {
    animation: none;
  }
}

body:not(.dark) .uc-card {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.uc-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.uc-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--uc-accent);
  background: color-mix(in srgb, var(--uc-accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--uc-accent) 30%, transparent);
}

.uc-badge-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--uc-accent);
}

.uc-cat {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.uc-card-title {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.uc-story {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.uc-integrations {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.uc-int-chip {
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.uc-int-chip:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.uc-prompt-wrap {
  position: relative;
  padding: 14px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid color-mix(in srgb, var(--uc-accent) 55%, transparent);
  border-radius: var(--radius-md);
}

body:not(.dark) .uc-prompt-wrap {
  background: rgba(15, 23, 42, 0.02);
}

.uc-prompt {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.79rem;
  line-height: 1.65;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.uc-card.is-open .uc-prompt {
  -webkit-line-clamp: unset;
  display: block;
}

.uc-prompt-toggle {
  margin-top: 10px;
  padding: 0;
  background: none;
  border: none;
  color: var(--uc-accent);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

.uc-prompt-toggle:hover {
  text-decoration: underline;
}

/* Cases that come from a feed without a published prompt */
.uc-noprompt {
  padding: 14px 16px;
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--text-muted);
}

body:not(.dark) .uc-noprompt {
  background: rgba(15, 23, 42, 0.02);
}

.uc-tag-noprompt {
  padding: 8px 14px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.uc-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 4px;
  flex-wrap: wrap;
}

.uc-card-link {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.uc-card-link:hover {
  color: var(--uc-accent);
}

/* Buttons */
.uc-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.uc-btn-primary {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  color: #fff;
}

.uc-btn-primary:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.uc-btn-ghost {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text-primary);
}

.uc-btn-ghost:hover {
  border-color: var(--border-hover);
}

.uc-btn[data-copied='true'] {
  background: var(--accent-2);
  color: #fff;
}

/* Loading + empty states */
.uc-skeleton {
  height: 230px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(110deg, rgba(148, 163, 184, 0.08) 8%, rgba(148, 163, 184, 0.16) 18%, rgba(148, 163, 184, 0.08) 33%);
  background-size: 220% 100%;
  animation: ucShimmer 1.2s linear infinite;
}

@keyframes ucShimmer {
  to {
    background-position-x: -220%;
  }
}

.uc-empty {
  grid-column: 1 / -1;
  padding: 70px 20px;
  text-align: center;
  color: var(--text-muted);
}

.uc-empty strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text-primary);
  font-family: var(--font-head);
  font-size: 1.15rem;
}

.uc-source-note {
  margin-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.uc-source-note a {
  color: var(--accent-3);
}

/* ================================================================
   HOW IT WORKS
   ================================================================ */
.uc-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.uc-step {
  position: relative;
  padding: 30px 26px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
}

body:not(.dark) .uc-step {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.uc-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 16px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.95rem;
}

.uc-step h3 {
  margin-bottom: 8px;
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.uc-step p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.uc-step code,
.uc-disclaimer code {
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(148, 163, 184, 0.15);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  color: var(--text-primary);
}

/* ================================================================
   HANDOFF – "Give this to your Muse"
   ================================================================ */
.uc-handoff-section {
  background: var(--bg-surface);
}

.uc-handoff-section .uc-steps {
  margin-bottom: 28px;
}

.uc-handoff-panel {
  padding: 32px 34px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
}

body:not(.dark) .uc-handoff-panel {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.uc-handoff-head {
  margin-bottom: 18px;
}

.uc-handoff-head p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.uc-handoff-prompt {
  max-height: 280px;
  overflow-y: auto;
}

.uc-btn-link {
  padding: 9px 4px;
  background: none;
  border: none;
  color: var(--accent-3);
  text-decoration: none;
}

.uc-btn-link:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  .uc-handoff-panel {
    padding: 24px 20px;
  }
}

/* ================================================================
   MASTER PROMPT
   ================================================================ */
.uc-master {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(320px, 1.4fr);
  gap: 32px;
  padding: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
}

body:not(.dark) .uc-master {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.uc-master-eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-3);
}

.uc-master-head h2 {
  margin-bottom: 12px;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  color: var(--text-primary);
}

.uc-master-head p {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.uc-master-text {
  margin: 0 0 16px;
  padding: 18px 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.uc-master-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ================================================================
   PATTERNS + GUARDRAILS
   ================================================================ */
.uc-pattern-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.uc-pattern {
  padding: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  border-top: 2px solid rgba(92, 184, 92, 0.35);
  transition: var(--transition);
}

body:not(.dark) .uc-pattern {
  background: #fff;
}

.uc-pattern:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.uc-pattern b {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
}

.uc-pattern p {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.uc-guardrail-grid .uc-pattern {
  border-top-color: rgba(236, 72, 153, 0.35);
}

/* ================================================================
   SOURCES
   ================================================================ */
.uc-source-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.uc-source-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 26px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: var(--transition);
}

body:not(.dark) .uc-source-card {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.uc-source-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.uc-source-badge {
  align-self: flex-start;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.uc-source-badge.is-bot {
  color: var(--accent-1);
  background: rgba(92, 184, 92, 0.12);
}

.uc-source-badge.is-muse {
  color: var(--accent-pink);
  background: rgba(236, 72, 153, 0.12);
}

.uc-source-badge.is-crowd {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
}

.uc-source-badge.is-agent {
  color: var(--text-secondary);
  background: rgba(148, 163, 184, 0.15);
}

.uc-source-card h3 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.uc-source-card p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.uc-source-link {
  margin-top: auto;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-1);
}

.uc-disclaimer {
  max-width: 720px;
  margin: 36px auto 0;
  text-align: center;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 900px) {
  .uc-master {
    grid-template-columns: 1fr;
    padding: 28px 24px;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .uc-controls {
    gap: 14px;
  }

  .uc-source-switch {
    flex-wrap: wrap;
    justify-content: center;
    border-radius: var(--radius-lg);
  }

  .uc-toolbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .uc-toolbar-right {
    width: 100%;
    justify-content: space-between;
  }

  .uc-pattern-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .uc-grid {
    grid-template-columns: 1fr;
  }

  .uc-card {
    padding: 20px;
  }

  .uc-master {
    padding: 24px 20px;
  }

  .uc-master-actions .uc-btn {
    width: 100%;
    justify-content: center;
  }

  .uc-search {
    padding-left: 12px;
  }
}