/* ── YPNUS MLO Toolkit ─────────────────────────────────────────────────────── */

:root {
  --mlo-navy:       #0D1F35;
  --mlo-navy-mid:   #162D4A;
  --mlo-navy-light: #1E3D60;
  --mlo-gold:       #B8890A;
  --mlo-gold-light: #D4A012;
  --mlo-steel:      #4A6585;
  --mlo-bg:         #F2F5F9;
  --mlo-surface:    #FFFFFF;
  --mlo-border:     #D0D9E6;
  --mlo-text:       #0D1F35;
  --mlo-text-soft:  #4A6585;
  --mlo-amber:      #92600A;
  --mlo-amber-bg:   #FDF3DC;
  --mlo-amber-border: #E5C77A;
  --mlo-green:      #1A6B3C;
  --mlo-radius:     6px;
  --mlo-radius-lg:  10px;
  --mlo-shadow:     0 1px 4px rgba(13,31,53,0.10), 0 4px 16px rgba(13,31,53,0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --mlo-bg:         #070E18;
    --mlo-surface:    #0D1F35;
    --mlo-border:     #1E3D60;
    --mlo-text:       #E4EBF5;
    --mlo-text-soft:  #7A9BBE;
    --mlo-amber-bg:   #1E1400;
    --mlo-amber-border: #6B4800;
    --mlo-shadow:     0 1px 4px rgba(0,0,0,0.4), 0 4px 20px rgba(0,0,0,0.3);
  }
}

:root[data-theme="dark"] {
  --mlo-bg:         #070E18;
  --mlo-surface:    #0D1F35;
  --mlo-border:     #1E3D60;
  --mlo-text:       #E4EBF5;
  --mlo-text-soft:  #7A9BBE;
  --mlo-amber-bg:   #1E1400;
  --mlo-amber-border: #6B4800;
  --mlo-shadow:     0 1px 4px rgba(0,0,0,0.4), 0 4px 20px rgba(0,0,0,0.3);
}

:root[data-theme="light"] {
  --mlo-bg:         #F2F5F9;
  --mlo-surface:    #FFFFFF;
  --mlo-border:     #D0D9E6;
  --mlo-text:       #0D1F35;
  --mlo-text-soft:  #4A6585;
  --mlo-amber-bg:   #FDF3DC;
  --mlo-amber-border: #E5C77A;
  --mlo-shadow:     0 1px 4px rgba(13,31,53,0.10), 0 4px 16px rgba(13,31,53,0.06);
}

/* ── Tool Container ────────────────────────────────────────────────────────── */

.ypnus-tool {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--mlo-text);
  background: var(--mlo-bg);
  border-radius: var(--mlo-radius-lg);
  padding: 2rem;
  max-width: 920px;
  margin: 0 auto 2rem;
  -webkit-font-smoothing: antialiased;
}

.ypnus-tool__header {
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--mlo-border);
  padding-bottom: 1.25rem;
}

.ypnus-tool__eyebrow {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mlo-gold);
  margin-bottom: 0.4rem;
}

.ypnus-tool__title {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 0.5rem;
  color: var(--mlo-text);
  text-wrap: balance;
}

.ypnus-tool__desc {
  font-size: 0.9375rem;
  color: var(--mlo-text-soft);
  margin: 0;
  line-height: 1.55;
}

/* ── Form Elements ─────────────────────────────────────────────────────────── */

.ypnus-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.ypnus-form--inline .ypnus-input-row {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
}

.ypnus-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mlo-text-soft);
  text-transform: uppercase;
}

.ypnus-textarea,
.ypnus-input {
  background: var(--mlo-surface);
  border: 1px solid var(--mlo-border);
  border-radius: var(--mlo-radius);
  color: var(--mlo-text);
  font-family: inherit;
  font-size: 0.9375rem;
  padding: 0.75rem 1rem;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
  box-sizing: border-box;
}

.ypnus-textarea {
  resize: vertical;
  min-height: 160px;
  line-height: 1.6;
}

.ypnus-input {
  flex: 1;
}

.ypnus-textarea:focus,
.ypnus-input:focus {
  outline: none;
  border-color: var(--mlo-gold);
  box-shadow: 0 0 0 3px rgba(184,137,10,0.15);
}

.ypnus-hint {
  font-size: 0.8125rem;
  color: var(--mlo-text-soft);
  margin: 0;
  font-style: italic;
}

/* ── Buttons ───────────────────────────────────────────────────────────────── */

.ypnus-btn {
  align-items: center;
  border: none;
  border-radius: var(--mlo-radius);
  cursor: pointer;
  display: inline-flex;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  gap: 0.5rem;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  position: relative;
  transition: opacity 0.15s, transform 0.1s;
  white-space: nowrap;
}

.ypnus-btn:active { transform: scale(0.98); }

.ypnus-btn--primary {
  background: var(--mlo-navy);
  color: #FFFFFF;
}

.ypnus-btn--primary:hover { opacity: 0.88; }

.ypnus-btn.is-loading .ypnus-btn__text { opacity: 0; }
.ypnus-btn.is-loading { pointer-events: none; }

.ypnus-btn__loader {
  display: none;
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: ypnus-spin 0.7s linear infinite;
}

.ypnus-btn.is-loading .ypnus-btn__loader { display: block; }

@keyframes ypnus-spin {
  to { transform: rotate(360deg); }
}

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

/* ── Copy Button ───────────────────────────────────────────────────────────── */

.ypnus-copy-btn {
  background: transparent;
  border: 1px solid var(--mlo-border);
  border-radius: var(--mlo-radius);
  color: var(--mlo-text-soft);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.75rem;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  text-transform: uppercase;
}

.ypnus-copy-btn:hover {
  border-color: var(--mlo-gold);
  color: var(--mlo-gold);
}

.ypnus-copy-btn.is-copied {
  background: var(--mlo-green);
  border-color: var(--mlo-green);
  color: #fff;
}

/* ── Output Grid ───────────────────────────────────────────────────────────── */

.ypnus-output {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ypnus-output[hidden] { display: none; }

.ypnus-output-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ypnus-post-card {
  background: var(--mlo-surface);
  border: 1px solid var(--mlo-border);
  border-radius: var(--mlo-radius-lg);
  box-shadow: var(--mlo-shadow);
  overflow: hidden;
  position: relative;
}

.ypnus-post-card__header {
  align-items: center;
  border-bottom: 1px solid var(--mlo-border);
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 1rem;
}

.ypnus-post-card__body {
  padding: 1rem;
}

.ypnus-post-text {
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--mlo-text);
}

/* ── Platform Badges ───────────────────────────────────────────────────────── */

.ypnus-platform-badge {
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  text-transform: uppercase;
}

.ypnus-platform-badge--linkedin  { background: #0A66C2; color: #fff; }
.ypnus-platform-badge--instagram { background: #C13584; color: #fff; }
.ypnus-platform-badge--tiktok    { background: #010101; color: #fff; }

/* ── Disclosure Badge ──────────────────────────────────────────────────────── */

.ypnus-disclosure-badge {
  background: var(--mlo-amber-bg);
  border-top: 1px solid var(--mlo-amber-border);
  color: var(--mlo-amber);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.35rem 1rem;
  text-transform: uppercase;
}

/* ── Keyword Table ─────────────────────────────────────────────────────────── */

.ypnus-table-wrap {
  overflow-x: auto;
  border-radius: var(--mlo-radius-lg);
  border: 1px solid var(--mlo-border);
  box-shadow: var(--mlo-shadow);
}

.ypnus-keyword-table {
  background: var(--mlo-surface);
  border-collapse: collapse;
  font-size: 0.875rem;
  width: 100%;
}

.ypnus-keyword-table th {
  background: var(--mlo-navy);
  color: rgba(255,255,255,0.75);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.75rem 1rem;
  text-align: left;
  text-transform: uppercase;
  white-space: nowrap;
}

.ypnus-keyword-table td {
  border-bottom: 1px solid var(--mlo-border);
  color: var(--mlo-text);
  padding: 0.875rem 1rem;
  vertical-align: top;
  line-height: 1.45;
}

.ypnus-keyword-table tr:last-child td { border-bottom: none; }

.ypnus-keyword-table tr:hover td {
  background: var(--mlo-bg);
}

.ypnus-keyword-table td:first-child {
  font-weight: 600;
  color: #1565C0;
}

:root[data-theme="dark"] .ypnus-keyword-table td:first-child,
@media (prefers-color-scheme: dark) {
  .ypnus-keyword-table td:first-child { color: #7EB8E8; }
}

/* Intent pills */
.ypnus-pill {
  border-radius: 3px;
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  text-transform: uppercase;
  white-space: nowrap;
}

.ypnus-pill--informational { background: #E0EAF7; color: #1B4F8A; }
.ypnus-pill--commercial    { background: #E3F5EC; color: #1A6B3C; }
.ypnus-pill--transactional { background: #FAE8DC; color: #8B3500; }
.ypnus-pill--navigational  { background: #F0E8FA; color: #5B2D8A; }

.ypnus-diff--easy   { color: #1A6B3C; font-weight: 700; }
.ypnus-diff--medium { color: #8B5E00; font-weight: 700; }
.ypnus-diff--hard   { color: #8B2000; font-weight: 700; }

.ypnus-use-keyword-btn {
  background: transparent;
  border: 1px solid var(--mlo-border);
  border-radius: var(--mlo-radius);
  color: var(--mlo-text-soft);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.6rem;
  transition: border-color 0.15s, color 0.15s;
  white-space: nowrap;
}

.ypnus-use-keyword-btn:hover {
  border-color: var(--mlo-gold);
  color: var(--mlo-gold);
}

/* ── Error ─────────────────────────────────────────────────────────────────── */

.ypnus-error {
  background: #FDE8E8;
  border: 1px solid #F0ABAB;
  border-radius: var(--mlo-radius);
  color: #8B0000;
  font-size: 0.9rem;
  padding: 0.875rem 1rem;
}

.ypnus-error[hidden] { display: none; }

/* ── Silo Navigation ───────────────────────────────────────────────────────── */

.ypnus-silo-nav {
  background: var(--mlo-surface);
  border: 1px solid var(--mlo-border);
  border-left: 3px solid var(--mlo-gold);
  border-radius: var(--mlo-radius);
  box-shadow: var(--mlo-shadow);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin-bottom: 1.75rem;
  overflow: hidden;
}

.ypnus-silo-nav__breadcrumb {
  align-items: center;
  background: var(--mlo-bg);
  border-bottom: 1px solid var(--mlo-border);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  gap: 0.25rem 0.5rem;
  padding: 0.6rem 1rem;
}

.ypnus-silo-nav__home,
.ypnus-silo-nav__pillar {
  color: var(--mlo-navy-light);
  font-weight: 500;
  text-decoration: none;
}

:root[data-theme="dark"] .ypnus-silo-nav__home,
:root[data-theme="dark"] .ypnus-silo-nav__pillar {
  color: #7EB8E8;
}

.ypnus-silo-nav__home:hover,
.ypnus-silo-nav__pillar:hover {
  text-decoration: underline;
  color: var(--mlo-gold);
}

.ypnus-silo-nav__sep {
  color: var(--mlo-border);
}

.ypnus-silo-nav__current {
  color: var(--mlo-text-soft);
  font-weight: 400;
}

.ypnus-silo-nav__children {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
  padding: 0.625rem 1rem;
}

.ypnus-silo-nav__label {
  color: var(--mlo-text-soft);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-right: 0.25rem;
  text-transform: uppercase;
}

.ypnus-silo-nav__child {
  background: var(--mlo-bg);
  border: 1px solid var(--mlo-border);
  border-radius: 4px;
  color: var(--mlo-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.2rem 0.65rem;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.ypnus-silo-nav__child:hover {
  border-color: var(--mlo-gold);
  color: var(--mlo-gold);
  background: var(--mlo-surface);
}

.ypnus-silo-nav__child--active {
  background: var(--mlo-navy);
  border-color: var(--mlo-navy);
  color: #FFFFFF;
  pointer-events: none;
}

/* ── Responsive ────────────────────────────────────────────────────────────── */

@media (max-width: 600px) {
  .ypnus-tool { padding: 1.25rem; }
  .ypnus-form--inline .ypnus-input-row { flex-direction: column; }
  .ypnus-btn { width: 100%; }
}

/* ── Agentic Chat ──────────────────────────────────────────────────────────── */

.ypnus-agent {
  background: var(--mlo-bg);
  border-radius: var(--mlo-radius-lg);
  border: 1px solid var(--mlo-border);
  box-shadow: var(--mlo-shadow);
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  max-width: 780px;
  margin: 0 auto 2rem;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Header */
.ypnus-agent__header {
  align-items: center;
  background: var(--mlo-navy);
  color: #fff;
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
}

.ypnus-agent__avatar {
  align-items: center;
  background: var(--mlo-gold);
  border-radius: 50%;
  color: var(--mlo-navy);
  display: flex;
  flex-shrink: 0;
  height: 38px;
  justify-content: center;
  width: 38px;
}

.ypnus-agent__name {
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.2;
}

.ypnus-agent__sub {
  color: rgba(255,255,255,0.55);
  font-size: 0.75rem;
  margin-top: 1px;
}

.ypnus-agent__status {
  align-items: center;
  display: flex;
  gap: 0.375rem;
  margin-left: auto;
}

.ypnus-agent__dot {
  background: #3BE878;
  border-radius: 50%;
  display: block;
  flex-shrink: 0;
  height: 8px;
  transition: background 0.3s;
  width: 8px;
}

.ypnus-agent__dot.is-thinking {
  animation: ypnus-pulse 1s ease-in-out infinite;
  background: var(--mlo-gold-light);
}

@keyframes ypnus-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}

.ypnus-agent__status-text {
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
}

/* Messages */
.ypnus-agent__messages {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-height: 300px;
  max-height: 520px;
  overflow-y: auto;
  padding: 1.25rem;
  scroll-behavior: smooth;
  background: var(--mlo-surface);
}

.ypnus-agent__message {
  display: flex;
  flex-direction: column;
  max-width: 82%;
}

.ypnus-agent__message--user {
  align-items: flex-end;
  align-self: flex-end;
}

.ypnus-agent__message--agent,
.ypnus-agent__message--error {
  align-items: flex-start;
  align-self: flex-start;
}

.ypnus-agent__bubble {
  background: var(--mlo-bg);
  border: 1px solid var(--mlo-border);
  border-radius: 12px 12px 12px 2px;
  color: var(--mlo-text);
  font-size: 0.9rem;
  line-height: 1.65;
  padding: 0.75rem 1rem;
  word-break: break-word;
}

.ypnus-agent__message--user .ypnus-agent__bubble {
  background: var(--mlo-navy);
  border-color: var(--mlo-navy);
  border-radius: 12px 12px 2px 12px;
  color: #fff;
}

.ypnus-agent__bubble--error {
  background: #FDE8E8;
  border-color: #F0ABAB;
  color: #8B0000;
}

.ypnus-agent__bubble code {
  background: rgba(0,0,0,0.07);
  border-radius: 3px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.825em;
  padding: 0.1em 0.35em;
}

.ypnus-agent__message--agent .ypnus-agent__bubble code {
  background: rgba(13,31,53,0.06);
}

/* Copy button under agent messages */
.ypnus-agent__copy {
  background: transparent;
  border: none;
  color: var(--mlo-text-soft);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-top: 0.2rem;
  padding: 0.15rem 0;
  text-transform: uppercase;
  transition: color 0.15s;
}

.ypnus-agent__copy:hover { color: var(--mlo-gold); }

/* Typing indicator */
.ypnus-agent__message--typing .ypnus-agent__bubble {
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 0.9rem 1rem;
}

.ypnus-agent__message--typing .ypnus-agent__bubble span {
  background: var(--mlo-steel);
  border-radius: 50%;
  display: block;
  height: 7px;
  width: 7px;
  animation: ypnus-typing 1.2s ease-in-out infinite;
}

.ypnus-agent__message--typing .ypnus-agent__bubble span:nth-child(2) {
  animation-delay: 0.2s;
}

.ypnus-agent__message--typing .ypnus-agent__bubble span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes ypnus-typing {
  0%, 60%, 100% { transform: translateY(0);    opacity: 0.4; }
  30%            { transform: translateY(-5px); opacity: 1;   }
}

@media (prefers-reduced-motion: reduce) {
  .ypnus-agent__message--typing .ypnus-agent__bubble span { animation: none; }
  .ypnus-agent__dot.is-thinking { animation: none; }
}

/* Suggestion chips */
.ypnus-agent__suggestions {
  background: var(--mlo-surface);
  border-top: 1px solid var(--mlo-border);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
}

.ypnus-agent__chip {
  background: var(--mlo-bg);
  border: 1px solid var(--mlo-border);
  border-radius: 20px;
  color: var(--mlo-text);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8125rem;
  padding: 0.3rem 0.85rem;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  white-space: nowrap;
}

.ypnus-agent__chip:hover {
  border-color: var(--mlo-gold);
  color: var(--mlo-gold);
  background: var(--mlo-surface);
}

/* Input row */
.ypnus-agent__input-row {
  align-items: flex-end;
  background: var(--mlo-surface);
  border-top: 1px solid var(--mlo-border);
  display: flex;
  gap: 0.625rem;
  padding: 0.875rem 1.25rem;
}

.ypnus-agent__input {
  background: var(--mlo-bg);
  border: 1px solid var(--mlo-border);
  border-radius: var(--mlo-radius);
  color: var(--mlo-text);
  flex: 1;
  font-family: inherit;
  font-size: 0.9375rem;
  line-height: 1.5;
  max-height: 160px;
  overflow-y: auto;
  padding: 0.625rem 0.875rem;
  resize: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.ypnus-agent__input:focus {
  border-color: var(--mlo-gold);
  box-shadow: 0 0 0 3px rgba(184,137,10,0.15);
  outline: none;
}

.ypnus-agent__send {
  align-items: center;
  background: var(--mlo-navy);
  border: none;
  border-radius: var(--mlo-radius);
  color: #fff;
  cursor: pointer;
  display: flex;
  flex-shrink: 0;
  height: 40px;
  justify-content: center;
  position: relative;
  transition: opacity 0.15s;
  width: 40px;
}

.ypnus-agent__send:hover { opacity: 0.85; }
.ypnus-agent__send:active { transform: scale(0.96); }
.ypnus-agent__send.is-loading .ypnus-btn__text { opacity: 0; }
.ypnus-agent__send.is-loading { pointer-events: none; }
.ypnus-agent__send .ypnus-btn__loader {
  width: 16px;
  height: 16px;
}

/* Footer */
.ypnus-agent__footer {
  background: var(--mlo-bg);
  border-top: 1px solid var(--mlo-border);
  color: var(--mlo-text-soft);
  font-size: 0.6875rem;
  padding: 0.5rem 1.25rem;
  text-align: center;
}

/* ── Agent responsive ────────────────────────────────────────────────────────── */

@media (max-width: 600px) {
  .ypnus-agent__messages { max-height: 380px; }
  .ypnus-agent__message  { max-width: 94%; }
  .ypnus-agent__suggestions { gap: 0.4rem; padding: 0.625rem 1rem; }
  .ypnus-agent__input-row { padding: 0.625rem 1rem; }
}