/* Deikno — Research plan page (BRIEF #66) */
/* Tokens mirror site/css/generating.css so both steps of the flow read as one product. */

:root {
  --page: #faf9f6;
  --surface: #ffffff;
  --ink-strong: #26202f;
  --ink: #374151;
  --ink-muted: #6b7280;
  --ink-disabled: #9ca3af;
  --line: #e6e6e6;
  --line-soft: #ececef;
  --primary: #217580;
  --primary-strong: #1a6370;
  --primary-soft: #eaf6f7;
  --primary-depth: #ccebed;
  --negative: #a95745;
  --negative-soft: #fbefec;
  --radius-compact: 12px;
  --radius-card: 18px;
  --radius-large: 20px;
  --radius-pill: 100px;
  --shadow-control: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-soft: 8px 10px 24px rgba(38, 32, 47, 0.07);
  --shadow-float: 12px 16px 30px rgba(38, 32, 47, 0.11);
  --motion-fast: 180ms;
  --motion-base: 200ms;
  --motion-enter: 600ms;
  --ease-enter: cubic-bezier(0.2, 0.75, 0.25, 1);
  --hover-lift: -6px;
  --reveal-offset: 20px;
  --max-width: 980px;
}

*, *::before, *::after { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.shell {
  width: min(var(--max-width), calc(100% - 48px));
  margin-inline: auto;
}

/* ---- Topbar (shared shape with generating.html) ---- */
.topbar { border-bottom: 1px solid var(--line); }
.topbar-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-strong);
  font-size: 17px;
  font-weight: 700;
  text-decoration: none;
}
.brand > span:last-child > span { color: var(--primary); }
.brand-mark {
  position: relative;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  border-radius: var(--radius-compact);
  background: var(--primary);
  box-shadow: var(--shadow-control);
}
.brand-mark::before {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  left: 8px;
  top: 7px;
  border: 2px solid #ffffff;
  border-radius: 50%;
}
.mode-state {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  color: var(--ink-muted);
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 11px;
}

/* ---- Page header ---- */
.plan-main { padding: 32px 0 40px; }

.eyebrow {
  margin: 0 0 6px;
  color: var(--primary-strong);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}
.plan-header-line {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.plan-title {
  margin: 0 0 8px;
  color: var(--ink-strong);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.3;
  overflow-wrap: anywhere;
}
.plan-normalized {
  margin: 0;
  color: var(--ink-muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}
.plan-exhausted {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-left: 3px solid var(--negative);
  border-radius: 0 var(--radius-compact) var(--radius-compact) 0;
  background: var(--negative-soft);
  color: var(--ink);
  font-size: 12px;
}
.plan-section-title {
  margin: 32px 0 14px;
  color: var(--ink-strong);
  font-size: 15px;
  font-weight: 650;
}

.plan-edit-btn,
.plan-text-btn {
  min-height: 36px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--primary-strong);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.plan-edit-btn:hover,
.plan-text-btn:hover { color: var(--ink-strong); }
.plan-edit-btn:focus-visible,
.plan-text-btn:focus-visible,
.plan-secondary-btn:focus-visible,
.plan-confirm-btn:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.plan-editor,
.clarification-form {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}
.plan-editor input,
.clarification-form input {
  min-width: 0;
  flex: 1 1 auto;
  min-height: 44px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-compact);
  background: var(--surface);
  color: var(--ink-strong);
  box-shadow: var(--shadow-control);
}
.plan-secondary-btn {
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform var(--motion-base) var(--ease-enter),
    background-color var(--motion-base) var(--ease-enter);
}
.plan-secondary-btn:hover { background: var(--primary-strong); transform: translateY(-2px); }

/* ---- Loading, error, and clarification states ---- */
.plan-loading {
  min-height: 220px;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 12px;
  color: var(--ink-muted);
  font-size: 13px;
}
.plan-spinner {
  width: 30px;
  height: 30px;
  border: 3px solid var(--primary-depth);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: plan-spin 800ms linear infinite;
}
.plan-skeleton {
  width: min(420px, 80vw);
  display: grid;
  gap: 7px;
  margin-top: 5px;
}
.plan-skeleton span {
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--line-soft);
}
.plan-skeleton span:nth-child(2) { width: 78%; }
.plan-skeleton span:nth-child(3) { width: 58%; }
@keyframes plan-spin { to { transform: rotate(360deg); } }

.plan-error,
.plan-clarification {
  --panel-face: var(--surface);
  --panel-depth: var(--primary-depth);
  position: relative;
  isolation: isolate;
  min-width: 0;
  margin-top: 24px;
  padding: 24px;
  border-radius: var(--radius-large);
  background: transparent;
}
.plan-error::before,
.plan-error::after,
.plan-clarification::before,
.plan-clarification::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}
.plan-error::before,
.plan-clarification::before {
  z-index: -1;
  border: 1px solid var(--line);
  background: var(--panel-face);
}
.plan-error::after,
.plan-clarification::after {
  z-index: -2;
  border: 1px solid rgba(137, 185, 192, 0.24);
  background: var(--panel-depth);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transform: translate(7px, 8px) skewY(-0.25deg);
  box-shadow: var(--shadow-soft);
}
.plan-error { --panel-face: var(--negative-soft); --panel-depth: #efd9d3; }
.plan-error p { margin: 0; color: var(--ink-strong); }
.plan-state-actions { display: flex; align-items: center; gap: 16px; margin-top: 18px; }
.plan-clarification-label {
  margin: 0 0 6px;
  color: var(--primary-strong);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}
.plan-clarification h2 {
  margin: 0;
  color: var(--ink-strong);
  font-size: 19px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}
.clarification-round-hint { margin: 10px 0 0; color: var(--ink-muted); font-size: 11px; }

.reveal {
  opacity: 0;
  transform: translateY(var(--reveal-offset));
  transition:
    opacity var(--motion-enter) var(--ease-enter),
    transform var(--motion-enter) var(--ease-enter);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---- Latent needs ---- */
.latent-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.latent-list li {
  padding: 10px 14px;
  background: var(--primary-soft);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-compact) var(--radius-compact) 0;
  font-size: 13px;
  color: var(--ink);
}

/* ---- Research dimensions ---- */
.dimension-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  padding: 0 8px 9px 0;
}
.dimension-card {
  --depth-x: 6px;
  --depth-y: 7px;
  position: relative;
  isolation: isolate;
  min-width: 0;
  padding: 16px 18px;
  background: transparent;
  border-radius: var(--radius-card);
  transition:
    transform var(--motion-base) var(--ease-enter),
    box-shadow var(--motion-base) var(--ease-enter),
    opacity var(--motion-enter) var(--ease-enter);
}
.dimension-card::before,
.dimension-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}
.dimension-card::before {
  z-index: -1;
  border: 1px solid var(--line);
  background: var(--surface);
}
.dimension-card::after {
  z-index: -2;
  border: 1px solid rgba(137, 185, 192, 0.22);
  background: #dcebed;
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
  transform: translate(var(--depth-x), var(--depth-y)) skewY(-0.25deg);
  box-shadow: 8px 10px 20px rgba(38, 32, 47, 0.07);
}
.dimension-card h3 {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 650;
  color: var(--ink-strong);
}
.dimension-card p {
  margin: 0;
  font-size: 12px;
  color: var(--ink-muted);
  line-height: 1.5;
}
.dimension-card .dimension-sources {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  color: var(--primary-strong);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.4;
}
.dimension-priority {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}
.dimension-priority.is-high   { background: var(--primary-soft); color: var(--primary-strong); }
.dimension-priority.is-medium { background: #f4f1ec; color: var(--ink-muted); }
.dimension-priority.is-low    { background: #f4f1ec; color: var(--ink-disabled); }

/* ---- Source selector ---- */
.source-group { margin-bottom: 22px; }
.source-group-label {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
  color: var(--ink-muted);
}
.source-list { display: grid; gap: 8px; }

.source-row {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-compact);
}
.source-row--locked { background: var(--page); }
.source-row--addon {
  cursor: pointer;
  transition:
    transform var(--motion-base) var(--ease-enter),
    border-color var(--motion-fast) var(--ease-enter),
    background-color var(--motion-fast) var(--ease-enter),
    box-shadow var(--motion-base) var(--ease-enter);
}
.source-row--addon:hover { border-color: var(--primary); }
.source-row--addon.is-selected { background: var(--primary-soft); border-color: var(--primary); }
.source-row--addon:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.source-row--addon.is-unavailable {
  cursor: not-allowed;
  background: var(--page);
  border-color: var(--line-soft);
}
.source-row--addon.is-unavailable:hover { border-color: var(--line-soft); }
.source-row--addon.is-unavailable .source-name,
.source-row--addon.is-unavailable .source-credits { color: var(--ink-disabled); }

.source-check {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1.5px solid var(--line);
  display: grid;
  place-items: center;
  font-size: 11px;
  line-height: 1;
  color: transparent;
}
.source-row--locked .source-check,
.source-row--addon.is-selected .source-check {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}
.source-name { font-size: 13px; color: var(--ink); }
.source-desc {
  display: block;
  font-size: 11px;
  color: var(--ink-muted);
  margin-top: 2px;
}
.source-availability {
  display: block;
  margin-top: 4px;
  color: var(--ink-muted);
  font-size: 11px;
  font-weight: 650;
}
.source-selection-error {
  margin: 10px 0 0;
  color: var(--negative);
  font-size: 12px;
}
.source-credits {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-strong);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.plan-disclaimer {
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: var(--ink-muted);
  line-height: 1.6;
}

/* ---- Sticky confirm footer ---- */
.plan-footer {
  position: relative;
  z-index: 10;
  background: var(--page);
  border-top: 1px solid var(--line);
  padding: 14px 0;
}
.plan-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.credit-summary { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; min-width: 0; }
.credit-standard {
  width: 100%;
  color: var(--ink-muted);
  font-size: 12px;
}
.credit-standard strong { color: var(--ink-strong); font-weight: 700; }
.addon-credit-summary { color: var(--primary-strong); font-size: 11px; }
.credit-total-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
  color: var(--ink-muted);
}
.credit-total-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary-strong);
  font-variant-numeric: tabular-nums;
}
.credit-unit { font-size: 12px; color: var(--ink-muted); }
.credit-balance {
  margin-left: 14px;
  font-size: 12px;
  color: var(--ink-muted);
}
.credit-balance.is-insufficient { color: var(--negative); font-weight: 600; }

/* Appears beside the balance only when it is short of the total. */
.plan-buy-credits {
  margin-left: 12px;
  padding: 5px 13px;
  border-radius: var(--radius-pill);
  background: var(--primary-soft);
  color: var(--primary-strong);
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}
.plan-buy-credits:hover { background: var(--primary-depth); }

.plan-confirm-btn {
  min-height: 44px;
  padding: 0 24px;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: #ffffff;
  font-family: inherit;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--ease-enter);
}
.plan-confirm-btn:hover:not(:disabled) { background: var(--primary-strong); }
.plan-confirm-btn:disabled { background: var(--ink-disabled); cursor: not-allowed; }

@media (hover: hover) and (pointer: fine) {
  .dimension-card:hover,
  .source-row--addon:not(.is-unavailable):hover {
    transform: translateY(var(--hover-lift));
    box-shadow: var(--shadow-float);
  }
}

@media (max-width: 640px) {
  .shell { width: calc(100% - 32px); }
  .plan-title { font-size: 22px; }
  .plan-editor,
  .clarification-form { align-items: stretch; flex-direction: column; }
  .plan-editor input,
  .clarification-form input,
  .plan-secondary-btn { width: 100%; }
  .plan-error,
  .plan-clarification { padding: 18px; }
  .plan-footer-inner { flex-direction: column; align-items: stretch; gap: 12px; }
  .plan-confirm-btn { width: 100%; }
  .credit-balance { margin-left: 0; width: 100%; }
}

@media (max-width: 520px) {
  .source-row { grid-template-columns: 24px minmax(0, 1fr); align-items: start; }
  .source-credits { grid-column: 2; justify-self: start; white-space: normal; }
  .mode-state { white-space: normal; text-align: right; }
  .plan-state-actions { align-items: stretch; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .dimension-card,
  .source-row--addon,
  .plan-confirm-btn,
  .plan-secondary-btn,
  .reveal,
  .reveal.is-visible {
    transition-duration: 1ms;
    transform: none;
  }
  .plan-spinner { animation-duration: 1ms; animation-iteration-count: 1; }
}