/*
 * Quartet v6 — AI Portfolio Advisor (.aia-*)
 *
 * Four views: landing (logged-out) · hub · brief (ask) · report (result).
 * Cyan working accent; violet = "Premium" signal.
 *
 * Uses Quartet tokens declared in theme.css via local aliases set on .aia-page.
 */

/* ─── Token aliases ───────────────────────────────────────────── */
.aia-page {
  --aia: var(--quartet-cyan);
  --aia-2: var(--quartet-cyan-2);
  --aia-fill: var(--quartet-cyan-fill);
  --aia-border: var(--quartet-cyan-border);
  --aia-ink: #06222a;
  --prem: var(--quartet-violet);
  --prem-fill: var(--quartet-violet-fill);
  --prem-border: rgba(184, 141, 255, 0.40);

  --bg: var(--bg-deep);
  --bg-2: var(--surface-deep);
  --surface: var(--surface-deep);
  --surface-2: var(--surface-deep-2);
  --surface-hi: var(--surface-deep-hi);
  --line: var(--line-deep);
  --line-2: var(--line-deep-2);
  --ink: var(--ink-deep);
  --ink-2: var(--ink-deep-2);
  --muted: var(--muted-deep);
  --muted-2: var(--muted-deep-2);
  --faint: var(--faint-deep);
  --cyan: var(--quartet-cyan);
  --cyan-2: var(--quartet-cyan-2);
  --violet: var(--quartet-violet);
  --indigo: var(--quartet-indigo);
  --coral: var(--quartet-coral);
  --amber: var(--quartet-amber);
  --pos: var(--quartet-pos);
  --pos-fill: var(--quartet-pos-fill);
  --pos-border: var(--quartet-pos-border);

  background: var(--bg-deep);
  color: var(--ink-deep);
  font-family: var(--font-quartet);
  min-height: 100vh;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 32px 72px;
}

@keyframes aia-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(184, 141, 255, 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(184, 141, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(184, 141, 255, 0); }
}

/* ─── Shared header band ───────────────────────────────────────── */
.aia-eyebrow {
  display: flex; align-items: center; gap: 12px;
  font-size: 10.5px; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.20em; font-weight: 600;
  margin-bottom: 20px;
}
.aia-eyebrow .pulse {
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--prem);
  animation: aia-pulse 2.4s ease-out infinite;
}
.aia-eyebrow .sep { color: var(--faint); }
.aia-eyebrow .prem {
  color: var(--prem);
  display: inline-flex; align-items: center; gap: 6px;
}
.aia-eyebrow .prem svg { width: 12px; height: 12px; }

.aia-headrow {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 28px;
  padding-bottom: 22px; border-bottom: 1px solid var(--line-2); margin-bottom: 28px;
}
.aia-title {
  font-size: 38px; font-weight: 600; letter-spacing: -0.035em;
  color: var(--ink); margin: 0; line-height: 1;
}
.aia-headrow .aia-sub {
  font-size: 15px; color: var(--muted); line-height: 1.55;
  margin: 12px 0 0; max-width: 60ch;
}
.aia-headrow .head-left { min-width: 0; }

/* query meter — mono count + 10-segment track */
.aia-meter { flex-shrink: 0; text-align: right; }
.aia-meter .count {
  font-family: var(--font-quartet-mono); font-size: 26px; font-weight: 500;
  color: var(--ink); letter-spacing: -0.02em; font-variant-numeric: tabular-nums;
}
.aia-meter .count .of { color: var(--muted-2); font-size: 16px; }
.aia-meter .lbl {
  font-size: 9.5px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.16em; font-weight: 600; margin-top: 4px;
}
.aia-meter .track { display: flex; gap: 3px; justify-content: flex-end; margin-top: 10px; }
.aia-meter .track i {
  width: 14px; height: 4px; border-radius: 1px; background: var(--surface-hi);
}
.aia-meter .track i.on { background: var(--prem); }

.aia-howlink {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: var(--aia);
  text-decoration: none; cursor: pointer; margin-bottom: 26px;
  background: none; border: 0; font-family: inherit; padding: 0;
}
.aia-howlink:hover { color: var(--aia-2); }
.aia-howlink svg { width: 14px; height: 14px; }

/* ─── Hub: topic grid ──────────────────────────────────────────── */
.aia-scope-label {
  font-size: 10px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.18em; font-weight: 600; margin-bottom: 14px;
}
.aia-topics {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px;
}
.aia-topic {
  position: relative; display: grid; grid-template-columns: 38px 1fr;
  gap: 16px; align-items: start;
  text-align: left; cursor: pointer; padding: 20px 22px;
  background: var(--surface); border: 1px solid var(--line-2); border-radius: 8px;
  font-family: inherit; color: inherit;
  transition: border-color .18s, transform .18s, background .18s;
}
.aia-topic:hover {
  border-color: var(--aia-border); transform: translateY(-3px); background: var(--surface-2);
}
.aia-topic-ic {
  width: 38px; height: 38px; border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--aia); background: var(--aia-fill); border: 1px solid var(--aia-border);
}
.aia-topic-ic svg { width: 19px; height: 19px; }
.aia-topic-meta { min-width: 0; }
.aia-topic .kicker {
  font-family: var(--font-quartet-mono); font-size: 9.5px; color: var(--muted-2);
  text-transform: uppercase; letter-spacing: 0.14em; display: block; margin-bottom: 7px;
}
.aia-topic .t {
  display: block; font-size: 15.5px; font-weight: 600; color: var(--ink);
  letter-spacing: -0.01em; line-height: 1.25;
}
.aia-topic .d {
  display: block; font-size: 12.5px; color: var(--muted); line-height: 1.5; margin-top: 6px;
}
.aia-topic .go {
  position: absolute; right: 18px; bottom: 16px;
  color: var(--muted-2); opacity: 0; transition: opacity .18s, transform .18s;
}
.aia-topic .go svg { width: 16px; height: 16px; display: block; }
.aia-topic:hover .go { opacity: 1; transform: translateX(2px); color: var(--aia); }
.aia-topic.custom {
  border-style: dashed; grid-column: 1 / -1; align-items: center;
}
.aia-topic.custom .aia-topic-ic {
  color: var(--prem); background: var(--prem-fill); border-color: var(--prem-border);
}

.aia-topic[data-tint="cyan"]   .aia-topic-ic { color: var(--cyan);   background: var(--aia-fill); border-color: var(--aia-border); }
.aia-topic[data-tint="indigo"] .aia-topic-ic { color: var(--indigo); background: var(--quartet-indigo-fill); border-color: rgba(138,159,255,0.32); }
.aia-topic[data-tint="violet"] .aia-topic-ic { color: var(--violet); background: var(--quartet-violet-fill); border-color: rgba(184,141,255,0.32); }
.aia-topic[data-tint="amber"]  .aia-topic-ic { color: var(--amber);  background: var(--quartet-amber-fill); border-color: rgba(255,198,109,0.32); }
.aia-topic[data-tint="coral"]  .aia-topic-ic { color: var(--coral);  background: var(--quartet-coral-fill); border-color: rgba(255,155,122,0.32); }
.aia-topic[data-tint="pos"]    .aia-topic-ic { color: var(--pos);    background: var(--pos-fill); border-color: var(--pos-border); }

/* ─── Hub: past analyses (lined list) ──────────────────────────── */
.aia-past { margin-top: 44px; }
.aia-past-head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding-bottom: 12px; border-bottom: 1px solid var(--line-2); margin-bottom: 4px;
}
.aia-past-head h2 {
  font-size: 11px; font-weight: 600; color: var(--aia);
  text-transform: uppercase; letter-spacing: 0.20em; margin: 0;
}
.aia-past-head .ct {
  font-family: var(--font-quartet-mono); font-size: 11px; color: var(--muted-2);
}
.aia-past-item {
  display: grid; grid-template-columns: 120px 1fr 18px; gap: 18px; align-items: center;
  width: 100%; padding: 16px 8px;
  border-bottom: 1px solid var(--line); background: transparent;
  border-left: 0; border-right: 0; border-top: 0;
  text-align: left; cursor: pointer; font-family: inherit; color: inherit;
  transition: background .15s, padding .15s;
}
.aia-past-item:hover { background: var(--bg-2); }
.aia-past-date {
  font-family: var(--font-quartet-mono); font-size: 11.5px;
  color: var(--muted-2); letter-spacing: -0.01em;
}
.aia-past-q { font-size: 14px; color: var(--ink); line-height: 1.45; min-width: 0; }
.aia-past-q .ctx { color: var(--muted); }
.aia-past-item .go { color: var(--muted-2); transition: transform .15s, color .15s; }
.aia-past-item .go svg { width: 16px; height: 16px; display: block; }
.aia-past-item:hover .go { transform: translateX(3px); color: var(--aia); }

/* ─── Brief (ask) — two columns: action | scope ────────────────── */
.aia-brief {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
  gap: 40px; align-items: start;
}
.aia-brief-q {
  font-size: 30px; font-weight: 600; letter-spacing: -0.03em;
  color: var(--ink); margin: 0 0 26px; line-height: 1.08; text-wrap: balance;
}
.aia-context-label {
  font-size: 10px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.18em; font-weight: 600; margin-bottom: 12px;
}
.aia-textarea {
  width: 100%; box-sizing: border-box; font-family: inherit; font-size: 14.5px;
  color: var(--ink);
  background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 10px;
  padding: 15px 16px; min-height: 150px; resize: vertical; line-height: 1.6;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.aia-textarea::placeholder { color: var(--muted-2); }
.aia-textarea:focus {
  outline: none; border-color: var(--aia);
  box-shadow: 0 0 0 3px var(--aia-fill); background: var(--surface);
}
.aia-brief-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; margin-top: 16px;
}
.aia-charcount {
  font-family: var(--font-quartet-mono); font-size: 11.5px; color: var(--muted-2);
}

/* scope spec sheet */
.aia-spec {
  background: var(--surface); border: 1px solid var(--line-2);
  border-radius: 10px; padding: 4px 22px 8px;
}
.aia-spec-row { padding: 20px 0; border-bottom: 1px solid var(--line); }
.aia-spec-row:last-child { border-bottom: 0; }
.aia-spec-row .lab {
  display: flex; align-items: center; gap: 9px; white-space: nowrap;
  font-size: 10px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.16em; font-weight: 600; margin-bottom: 11px;
}
.aia-spec-row .lab svg { width: 13px; height: 13px; color: var(--aia); }
.aia-spec-row.limits .lab svg { color: var(--muted-2); }
.aia-spec-row p { font-size: 13px; color: var(--ink-2); line-height: 1.6; margin: 0; }
.aia-spec-row.instr p { font-style: italic; color: var(--muted); }
.aia-spec-row.limits p { color: var(--muted); font-size: 12.5px; }
.aia-spec-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.aia-spec-chip {
  font-size: 11.5px; color: var(--ink-2); background: var(--bg-2);
  border: 1px solid var(--line-2); border-radius: 999px; padding: 5px 11px;
}

/* ─── Report (result) — sticky rail | document ─────────────────── */
.aia-report {
  display: grid; grid-template-columns: 256px minmax(0, 1fr);
  gap: 48px; align-items: start;
}
.aia-rail { position: sticky; top: 24px; align-self: start; }
.aia-rail-q {
  font-size: 19px; font-weight: 600; color: var(--ink);
  letter-spacing: -0.02em; line-height: 1.25; margin: 0 0 18px;
}
.aia-rail-meta { border-top: 1px solid var(--line-2); }
.aia-rail-meta .row { padding: 14px 0; border-bottom: 1px solid var(--line); }
.aia-rail-meta .k {
  font-size: 9.5px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.16em; font-weight: 600; margin-bottom: 8px;
}
.aia-rail-meta .v { font-size: 12.5px; color: var(--ink-2); line-height: 1.5; }
.aia-rail-meta .v.mono {
  font-family: var(--font-quartet-mono); letter-spacing: -0.01em; color: var(--ink);
}
.aia-rail-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.aia-rail-chip {
  font-size: 11px; color: var(--ink-2); background: var(--bg-2);
  border: 1px solid var(--line-2); border-radius: 999px; padding: 4px 10px;
}
.aia-rail .aia-btn { width: 100%; margin-bottom: 22px; }

/* ─── Document / analysis prose ────────────────────────────────── */
.aia-analysis { color: var(--ink-2); max-width: 76ch; }
.aia-analysis > h3:first-child { margin-top: 0; }
.aia-analysis h3 {
  font-size: 22px; font-weight: 600; color: var(--ink);
  letter-spacing: -0.02em; margin: 0 0 16px;
}
.aia-analysis h4 {
  font-size: 15px; font-weight: 600; color: var(--ink);
  margin: 30px 0 12px; letter-spacing: -0.01em;
}
.aia-analysis p {
  font-size: 14.5px; line-height: 1.72; margin: 0 0 16px; text-wrap: pretty;
}
.aia-analysis strong, .aia-analysis b { color: var(--ink); font-weight: 600; }
.aia-analysis em { color: var(--ink-2); }
.aia-analysis code {
  font-family: var(--font-quartet-mono); font-size: 0.9em; color: var(--aia-2);
  background: var(--surface); border: 1px solid var(--line-2);
  border-radius: 4px; padding: 1px 5px;
}
.aia-analysis ul { margin: 0 0 16px; padding: 0 0 0 20px; }
.aia-analysis ul li {
  font-size: 14.5px; line-height: 1.65; color: var(--ink-2); margin-bottom: 8px;
}
.aia-hr { border: 0; border-top: 1px solid var(--line); margin: 26px 0; }
.aia-analysis ol {
  margin: 0 0 16px; padding: 0; counter-reset: aia; list-style: none;
  display: flex; flex-direction: column; gap: 16px;
}
.aia-analysis ol li {
  position: relative; padding-left: 40px;
  font-size: 14.5px; line-height: 1.65; color: var(--ink-2); counter-increment: aia;
}
.aia-analysis ol li::before {
  content: counter(aia); position: absolute; left: 0; top: 0;
  width: 27px; height: 27px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-quartet-mono); font-size: 12px; font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--aia); background: var(--aia-fill); border: 1px solid var(--aia-border);
}
.aia-table {
  width: 100%; border-collapse: collapse; margin: 6px 0 18px; font-size: 14px;
}
.aia-table th {
  text-align: left; font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--muted); padding: 0 16px 11px;
  border-bottom: 1px solid var(--line-2);
}
.aia-table td {
  padding: 13px 16px; border-bottom: 1px solid var(--line); color: var(--ink-2);
}
.aia-table td.v {
  font-family: var(--font-quartet-mono); font-variant-numeric: tabular-nums;
  color: var(--ink); letter-spacing: -0.01em;
}
.aia-table tr:last-child td { border-bottom: 0; }

.aia-disclaimer {
  margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--muted); font-style: italic;
  line-height: 1.6; text-wrap: pretty; max-width: 76ch;
}

/* ─── Buttons ──────────────────────────────────────────────────── */
.aia-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 22px; border-radius: 8px; cursor: pointer; border: 1px solid transparent;
  font-family: inherit; font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  transition: all .15s; text-decoration: none; white-space: nowrap;
}
.aia-btn svg { width: 15px; height: 15px; transition: transform .2s; }
.aia-btn-primary {
  background: var(--aia); color: var(--aia-ink); border-color: var(--aia);
}
.aia-btn-primary:hover {
  background: var(--aia-2); border-color: var(--aia-2); transform: translateY(-1px);
}
.aia-btn-primary:hover svg { transform: translateX(3px); }
.aia-btn-primary:disabled {
  opacity: 0.5; cursor: not-allowed; transform: none;
}
.aia-btn-ghost {
  background: transparent; color: var(--ink-2); border-color: var(--line-2);
}
.aia-btn-ghost:hover { border-color: var(--muted-2); color: var(--ink); }
.aia-btn-ghost.accent { color: var(--aia); border-color: var(--aia-border); }
.aia-btn-ghost.accent:hover {
  border-color: var(--aia); background: var(--aia-fill);
}
.aia-btn.sm { padding: 9px 15px; font-size: 10px; }

/* ─── Logged-out landing ───────────────────────────────────────── */
.aia-land {
  max-width: 880px; margin: 0 auto; text-align: center; padding-top: 8px;
}
.aia-land .aia-eyebrow { justify-content: center; }
.aia-land-title {
  font-size: 52px; font-weight: 600; letter-spacing: -0.04em;
  line-height: 1.0; margin: 0 0 20px; color: var(--ink); text-wrap: balance;
}
.aia-land-title .accent { color: var(--aia); }
.aia-land-sub {
  font-size: 17px; color: var(--muted); line-height: 1.6;
  max-width: 60ch; margin: 0 auto 32px; text-wrap: pretty;
}
.aia-chips {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; margin-bottom: 40px;
}
.aia-chip {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 9px 15px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line-2);
  color: var(--ink-2); font-size: 13px; font-weight: 500;
}
.aia-chip svg { width: 15px; height: 15px; color: var(--aia); }
.aia-sample {
  text-align: left; background: var(--surface); border: 1px solid var(--line-2);
  border-radius: 10px; padding: 30px 32px; margin-bottom: 36px;
}
.aia-sample-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 9.5px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.18em; font-weight: 600; margin-bottom: 18px;
}
.aia-sample-tag .dot {
  width: 5px; height: 5px; border-radius: 999px; background: var(--aia);
}
.aia-land-cta { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.aia-land-cta .aia-btn { padding: 15px 28px; }
.aia-land-note { margin-top: 22px; font-size: 13px; color: var(--muted-2); }
.aia-land-note b { color: var(--prem); font-weight: 600; }

/* ─── Loading state ───────────────────────────────────────────── */
.aia-loading {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px; padding: 80px 0;
}
.aia-loading .aia-spinner {
  width: 32px; height: 32px; border-radius: 999px;
  border: 3px solid var(--line-2); border-top-color: var(--aia);
  animation: aia-spin 0.8s linear infinite;
}
@keyframes aia-spin {
  to { transform: rotate(360deg); }
}
.aia-loading p {
  font-size: 14px; color: var(--muted); margin: 0;
}

/* ─── Error state ─────────────────────────────────────────────── */
.aia-error {
  padding: 18px 22px; background: rgba(255, 138, 138, 0.08);
  border: 1px solid rgba(255, 138, 138, 0.25); border-radius: 8px;
  color: var(--ink-2); font-size: 14px; line-height: 1.5;
  margin-bottom: 20px;
}

/* ─── Premium teaser (non-premium logged-in) ──────────────────── */
.aia-teaser {
  text-align: center; padding: 48px 32px;
}
.aia-teaser p {
  font-size: 15px; color: var(--muted); max-width: 50ch;
  margin: 0 auto 24px; line-height: 1.6;
}

/* ─── How it works disclosure ─────────────────────────────────── */
.aia-hiw {
  background: var(--surface); border: 1px solid var(--line-2); border-radius: 10px;
  padding: 24px 26px; margin-bottom: 28px;
}
.aia-hiw-title {
  font-size: 10px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.16em; font-weight: 600; margin-bottom: 12px;
}
.aia-hiw p {
  font-size: 13.5px; color: var(--ink-2); line-height: 1.6; margin: 0 0 10px;
}
.aia-hiw p:last-child { margin-bottom: 0; }
.aia-hiw p strong { color: var(--ink); font-weight: 600; }

/* ─── Footer ──────────────────────────────────────────────────── */
.aia-footer {
  margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line);
  font-size: 12px; color: var(--muted-2); line-height: 1.6;
}

/* ─── Responsive ───────────────────────────────────────────────── */
@media (max-width: 920px) {
  .aia-topics { grid-template-columns: 1fr; }
  .aia-brief { grid-template-columns: 1fr; gap: 32px; }
  .aia-report { grid-template-columns: 1fr; gap: 28px; }
  .aia-rail { position: static; }
}
@media (max-width: 680px) {
  .aia-page { padding: 18px 16px 56px; }
  .aia-headrow { flex-direction: column; align-items: flex-start; gap: 18px; }
  .aia-meter { text-align: left; }
  .aia-meter .track { justify-content: flex-start; }
  .aia-title { font-size: 30px; }
  .aia-land-title { font-size: 36px; }
  .aia-past-item { grid-template-columns: 1fr 18px; }
  .aia-past-date { display: none; }
}