.research-actions { margin: 0 0 54px; padding: 24px; border: 1px solid var(--line); background: var(--warm); }
.research-actions > .eyebrow { margin-bottom: 18px; }
.research-action-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.research-action { display: flex; flex-direction: column; align-items: flex-start; min-width: 0; padding: 22px; background: var(--paper); }
.research-action-kind { margin: 0 0 9px !important; color: var(--blue); font: 500 .7rem/1.4 "DM Mono", monospace; letter-spacing: .06em; text-transform: uppercase; }
.research-action h2 { margin: 0 0 10px !important; font-size: 1.55rem !important; }
.research-action > p:not(.research-action-kind) { flex: 1; margin-bottom: 20px; color: var(--muted); font-size: .92rem; }
.research-action-button, .tool-button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 42px; padding: 9px 14px; border: 1px solid var(--line); background: transparent; color: var(--ink); font: 700 .78rem/1.3 Manrope, sans-serif; text-decoration: none; cursor: pointer; }
.research-action-button:hover, .tool-button:hover { border-color: var(--blue); color: var(--blue); }
.research-action-button.research-action-button--primary, .tool-button.tool-button--primary { border-color: var(--blue); background: var(--blue); color: var(--paper); }
.research-action-button--primary:hover, .tool-button--primary:hover { background: transparent; color: var(--blue); }
.research-action-button:focus-visible, .tool-button:focus-visible, .tool-field:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.tool-button:disabled { cursor: not-allowed; opacity: .45; }
.tool-button--small { min-height: 32px; padding: 5px 10px; font-size: .7rem; }

.tool-header { border-bottom: 1px solid var(--line); }
.tool-header > div { max-width: 1180px; margin: 0 auto; padding: 64px 28px 48px; }
.tool-header h1 { max-width: 980px; font-size: clamp(2.35rem, 5vw, 4.4rem); }
.tool-header-actions { display: flex; flex-wrap: wrap; gap: 14px 24px; margin-top: 28px; }
.tool-header-actions a { color: var(--blue); font: 700 .8rem/1.4 Manrope, sans-serif; text-underline-offset: 4px; }
.tool-workspace { min-height: 420px; margin: 0 auto; padding: 54px 28px 90px; }
.tool-workspace--standard { max-width: 900px; }
.tool-workspace--wide { max-width: 1180px; }
.tool-workspace--full { max-width: none; }
.tool-section-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 16px; }
.tool-section-heading h2 { margin: 0; font-size: 1.55rem; }
.tool-section-heading p { margin: 0; color: var(--muted); }
.tool-field, .check-target input { width: 100%; min-height: 44px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 0; background: var(--paper); color: var(--ink); font: inherit; }
.tool-help { margin: 8px 0 0; color: var(--muted); font-size: .82rem; }
.tool-panel { padding: 22px; border: 1px solid var(--line); background: var(--warm); }
.tool-stack { display: grid; gap: 18px; }
.tool-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.tool-split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.tool-empty { padding: 22px; color: var(--muted); text-align: center; }
.tool-error-banner { position: fixed; right: 20px; bottom: 20px; z-index: 30; max-width: 440px; padding: 16px 44px 16px 18px; border: 1px solid var(--red); background: var(--paper); color: var(--ink); box-shadow: 0 12px 32px rgb(0 0 0 / .24); }
.tool-error-banner button { position: absolute; top: 8px; right: 8px; border: 0; background: transparent; color: var(--ink); cursor: pointer; }

@media (max-width: 760px) {
  .research-actions { padding: 16px; }
  .research-action-grid, .tool-split { grid-template-columns: 1fr; }
  .tool-header > div { padding: 48px 20px 38px; }
  .tool-workspace { padding: 38px 20px 68px; }
}