/*
  AV LÜ™ research landing refinement v2.5.2
  Presentation-only layer for the customer-discovery landing page.
  Survey questions, controls, copy, and submission behavior remain unchanged.
*/

body.research-page {
  --research-panel-line: rgba(11, 31, 58, 0.16);
  --research-panel-shadow: 0 18px 42px rgba(11, 31, 58, 0.08);
  --research-button: #095ee0;
  --research-button-hover: #084dc0;
}

html[data-theme="dark"] body.research-page {
  --research-panel-line: rgba(164, 201, 255, 0.28);
  --research-panel-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
  --research-button: #2f70df;
  --research-button-hover: #3c7deb;
}

body.research-page .research-layout {
  width: min(100%, 1320px);
  padding: clamp(42px, 5.4vw, 72px) clamp(20px, 3.6vw, 48px) 56px;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(38px, 5.2vw, 72px);
}

body.research-page .intro {
  max-width: 510px;
  padding-top: clamp(4px, 1.2vw, 14px);
}

body.research-page h1 {
  max-width: 11ch;
  margin-top: 20px;
  margin-bottom: 22px;
  font-size: clamp(3.2rem, 4.25vw, 4.25rem);
  line-height: 0.99;
  letter-spacing: -0.055em;
}

body.research-page .intro-lead {
  max-width: 31ch;
  margin-bottom: 20px;
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.5;
}

body.research-page .app-explanation {
  max-width: 43ch;
  font-size: 0.93rem;
  line-height: 1.65;
}

body.research-page .research-purpose {
  max-width: 450px;
  margin-top: 24px;
  padding-top: 20px;
  border-top-color: var(--research-panel-line);
}

body.research-page .research-purpose p {
  line-height: 1.55;
}

body.research-page .reward-card {
  max-width: 430px;
  margin-top: 22px;
  border: 1px solid rgba(23, 48, 39, 0.14);
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: 0 10px 24px rgba(23, 48, 39, 0.1);
}

body.research-page .survey-card {
  align-self: start;
  border-color: var(--research-panel-line);
  border-radius: 16px;
  padding: clamp(22px, 2.6vw, 32px);
  box-shadow: var(--research-panel-shadow);
}

body.research-page .survey-top {
  min-height: 18px;
}

body.research-page .progress-track {
  height: 5px;
  margin: 16px 0 25px;
  border-radius: 999px;
  background: var(--soft);
}

body.research-page .progress-track span {
  border-radius: inherit;
  background: var(--research-button);
}

body.research-page .survey-card h2 {
  margin-bottom: 8px;
  font-size: clamp(1.45rem, 2vw, 1.7rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
}

body.research-page .survey-intro {
  max-width: 42ch;
  margin-bottom: 24px;
  color: var(--muted);
  line-height: 1.55;
}

body.research-page fieldset {
  margin-bottom: 24px;
}

body.research-page legend {
  margin-bottom: 11px;
  line-height: 1.4;
}

body.research-page .choice {
  min-height: 48px;
  border-color: var(--research-panel-line);
  border-radius: 8px;
  background: transparent;
  transition: border-color 150ms ease, background-color 150ms ease, box-shadow 150ms ease;
}

body.research-page .choice:hover {
  border-color: color-mix(in srgb, var(--blue) 62%, var(--research-panel-line));
  background: var(--soft);
}

body.research-page .choice:has(input:checked) {
  border-color: var(--blue);
  background: var(--soft);
  box-shadow: inset 0 0 0 1px var(--blue);
}

body.research-page input:focus-visible,
body.research-page textarea:focus-visible,
body.research-page select:focus-visible,
body.research-page .choice:has(input:focus-visible) {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

body.research-page .primary-button {
  min-height: 52px;
  border: 1px solid var(--research-button);
  border-radius: 8px;
  background: var(--research-button);
  box-shadow: 0 3px 0 color-mix(in srgb, var(--research-button) 65%, #081a35);
  letter-spacing: 0.01em;
  transition: background-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

body.research-page .primary-button:hover,
body.research-page .primary-button:focus-visible {
  background: var(--research-button-hover);
}

body.research-page .primary-button:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--research-button) 65%, #081a35);
}

body.research-page .back-button,
body.research-page .reward-entry,
body.research-page input,
body.research-page textarea,
body.research-page select {
  border-color: var(--research-panel-line);
  border-radius: 8px;
}

body.research-page .research-faq,
body.research-page .research-footer {
  border-top-color: var(--research-panel-line);
}

@media (max-width: 760px) {
  body.research-page .research-layout {
    padding: 28px 18px 40px;
  }

  body.research-page .intro {
    max-width: none;
    padding-top: 0;
  }

  body.research-page h1 {
    max-width: 12ch;
    margin-top: 17px;
    margin-bottom: 15px;
    font-size: clamp(2.35rem, 10.2vw, 3.2rem);
    line-height: 1.02;
  }

  body.research-page .app-explanation {
    max-width: 38ch;
    line-height: 1.55;
  }

  body.research-page .research-purpose {
    margin-top: 16px;
    padding-top: 16px;
  }

  body.research-page .reward-card {
    margin-top: 18px;
    padding: 13px 14px;
  }

  body.research-page .survey-card {
    margin-top: 24px;
    border-radius: 14px;
    padding: 20px 16px;
  }

  body.research-page .progress-track {
    margin-top: 14px;
    margin-bottom: 22px;
  }

  body.research-page .survey-intro {
    margin-bottom: 20px;
  }

  body.research-page fieldset {
    margin-bottom: 20px;
  }

  body.research-page .choice {
    min-height: 46px;
  }

  body.research-page .form-actions {
    margin-top: 5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.research-page .choice,
  body.research-page .primary-button {
    transition: none;
  }
}

/*
  Form polish
  Presentation-only refinements. Markup, survey hooks, and behavior remain unchanged.
*/
body.research-page {
  --research-panel-line: rgba(11, 31, 58, 0.18);
  --research-choice-hover: rgba(11, 31, 58, 0.035);
  --research-choice-selected: rgba(9, 94, 224, 0.08);
  --research-control-fill: #095ee0;
  --research-progress-track: rgba(11, 31, 58, 0.1);
  --research-progress-fill: #095ee0;
  --research-focus: #075ddd;
  --research-button: #095ee0;
  --research-button-hover: #084dc0;
}

html[data-theme="dark"] body.research-page {
  --research-panel-line: rgba(164, 201, 255, 0.24);
  --research-choice-hover: rgba(164, 201, 255, 0.065);
  --research-choice-selected: rgba(47, 112, 223, 0.16);
  --research-control-fill: #78aaff;
  --research-progress-track: rgba(164, 201, 255, 0.12);
  --research-progress-fill: #78aaff;
  --research-focus: #a4c9ff;
  --research-button: #2f70df;
  --research-button-hover: #3c7deb;
}

body.research-page .reward-card {
  margin-top: 20px;
}

body.research-page .intro-notes {
  margin-top: 14px;
  gap: 8px 16px;
  line-height: 1.4;
}

body.research-page .survey-card {
  border-color: var(--research-panel-line);
  border-radius: 16px;
  padding: clamp(24px, 2.5vw, 30px);
}

body.research-page .progress-track {
  height: 4px;
  margin: 15px 0 23px;
  background: var(--research-progress-track);
}

body.research-page .progress-track span {
  background: var(--research-progress-fill);
}

body.research-page .survey-card h2 {
  margin-bottom: 7px;
  line-height: 1.18;
}

body.research-page .survey-intro {
  margin-bottom: 22px;
  line-height: 1.5;
}

body.research-page fieldset {
  margin-bottom: 22px;
}

body.research-page legend {
  margin-bottom: 10px;
  line-height: 1.45;
}

body.research-page .choices {
  gap: 7px;
}

body.research-page .choice {
  min-height: 46px;
  padding: 10px 11px;
  border-color: var(--research-panel-line);
  border-radius: 8px;
  background: transparent;
  transition:
    background-color 140ms ease,
    border-color 140ms ease,
    color 140ms ease;
}

body.research-page .choice:hover {
  border-color: var(--blue);
  background: var(--research-choice-hover);
}

body.research-page .choice:has(input:checked) {
  border-color: var(--blue);
  background: var(--research-choice-selected);
  box-shadow: none;
}

body.research-page .choice input,
body.research-page .consent input {
  accent-color: var(--research-control-fill);
}

body.research-page .choice:has(input:focus-visible),
body.research-page input:focus-visible,
body.research-page textarea:focus-visible,
body.research-page select:focus-visible {
  outline: 2px solid var(--research-focus);
  outline-offset: 3px;
}

body.research-page .choice input:focus-visible {
  outline: none;
}

body.research-page .form-actions {
  margin-top: 6px;
}

body.research-page .primary-button {
  min-height: 50px;
  border: 1px solid var(--research-button);
  border-radius: 8px;
  background: var(--research-button);
  box-shadow: none;
  transition:
    background-color 140ms ease,
    border-color 140ms ease,
    color 140ms ease;
}

body.research-page .primary-button:hover,
body.research-page .primary-button:focus-visible {
  background: var(--research-button-hover);
  border-color: var(--research-button-hover);
}

body.research-page .primary-button:active {
  transform: none;
  box-shadow: none;
}

body.research-page .back-button,
body.research-page .reward-entry,
body.research-page input,
body.research-page textarea,
body.research-page select {
  border-color: var(--research-panel-line);
  border-radius: 8px;
}

@media (max-width: 760px) {
  body.research-page .research-layout {
    padding: 24px 16px 34px;
  }

  body.research-page .reward-card {
    margin-top: 16px;
    padding: 12px 13px;
  }

  body.research-page .intro-notes {
    margin-top: 12px;
    gap: 6px 12px;
  }

  body.research-page .survey-card {
    margin-top: 20px;
    border-radius: 14px;
    padding: 18px 14px;
  }

  body.research-page .progress-track {
    margin-top: 13px;
    margin-bottom: 19px;
  }

  body.research-page .survey-intro {
    margin-bottom: 18px;
  }

  body.research-page fieldset {
    margin-bottom: 18px;
  }

  body.research-page .choices {
    gap: 6px;
  }

  body.research-page .choice {
    min-height: 44px;
    padding: 9px 10px;
  }

  body.research-page .form-actions {
    margin-top: 4px;
  }

  body.research-page .primary-button {
    min-height: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.research-page .choice,
  body.research-page .primary-button,
  body.research-page .progress-track span {
    transition: none;
  }
}

/*
  Thank-you handoff
  Keep the optional real-listing path distinct from the research submission.
*/
body.research-page .thank-you-note {
  max-width: 42ch;
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.55;
}

body.research-page .thank-you-actions {
  display: flex;
  align-items: stretch;
  gap: 10px;
  margin-top: 22px;
}

body.research-page .thank-you-actions .primary-button,
body.research-page .thank-you-actions .secondary-button {
  flex: 1 1 220px;
  margin-top: 0;
}

body.research-page .thank-you-actions .secondary-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 50px;
  padding: 15px 18px;
  border: 1px solid var(--research-panel-line);
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
  transition:
    background-color 140ms ease,
    border-color 140ms ease,
    color 140ms ease;
}

body.research-page .thank-you-actions .secondary-button:hover,
body.research-page .thank-you-actions .secondary-button:focus-visible {
  border-color: var(--research-focus);
  background: var(--research-choice-hover);
}

body.research-page .thank-you-actions .secondary-button span {
  font-size: 20px;
  line-height: 1;
}

@media (max-width: 760px) {
  body.research-page .thank-you-actions {
    flex-direction: column;
    gap: 8px;
    margin-top: 20px;
  }

  body.research-page .thank-you-actions .primary-button,
  body.research-page .thank-you-actions .secondary-button {
    flex-basis: auto;
    width: 100%;
  }

  body.research-page .thank-you-actions .secondary-button {
    min-height: 48px;
    padding: 13px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.research-page .thank-you-actions .secondary-button {
    transition: none;
  }
}

/*
  AV LÜ™ Research Landing Polish v2.7.0
  Keep the form as the main event. Remove glossy startup cues and align the
  landing page with the Adobe editorial reference system.
*/
body.research-page {
  --research-editorial-navy: #071426;
  --research-editorial-navy-2: #0b1b32;
  --research-editorial-cream: #f7f3eb;
  --research-editorial-paper: #fffdf8;
  --research-editorial-ink: #17253d;
  --research-editorial-copy: #4c586a;
  --research-editorial-blue: #2f70df;
  --research-editorial-blue-soft: #9ec5ff;
  --research-editorial-rule: rgba(23, 37, 61, 0.16);
  font-family: "Source Sans 3", Arial, sans-serif !important;
}

body.research-page :is(button, input, select, textarea) {
  font-family: "Source Sans 3", Arial, sans-serif !important;
}

body.research-page :is(h1, h2, .thank-you h3) {
  font-family: "Source Serif 4", Georgia, serif !important;
  font-weight: 650 !important;
  letter-spacing: -0.04em !important;
}

body.research-page :is(.eyebrow, .step-label, .question-number) {
  font-family: "IBM Plex Mono", ui-monospace, monospace !important;
}

body.research-page h1 em {
  font-family: "Source Serif 4", Georgia, serif !important;
  font-weight: 650 !important;
}

body.research-page .research-header {
  min-height: 64px;
  padding-top: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--research-editorial-rule) !important;
}

body.research-page .brand {
  font-family: "Source Sans 3", Arial, sans-serif !important;
  font-size: 25px;
  font-weight: 750;
  letter-spacing: -0.04em;
}

body.research-page .v13-header__actions > a {
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0;
}

body.research-page .v13-theme-toggle {
  width: 40px !important;
  height: 40px !important;
  border-radius: 3px !important;
  box-shadow: none !important;
}

/* Keep visual priority on the form. */
body.research-page .research-layout {
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  gap: clamp(34px, 4.4vw, 64px);
  padding-top: clamp(34px, 4vw, 56px);
}

body.research-page .intro {
  max-width: 465px;
}

body.research-page h1 {
  max-width: 10ch;
  margin-top: 18px;
  margin-bottom: 18px;
  font-size: clamp(3rem, 4vw, 4.15rem);
  line-height: 0.97;
}

body.research-page .intro-lead {
  max-width: 32ch;
  color: var(--ink);
  font-size: 1.05rem;
}

body.research-page .app-explanation,
body.research-page .research-purpose p,
body.research-page .intro-notes {
  color: var(--muted);
}

body.research-page .research-purpose {
  border-top: 1px solid var(--research-panel-line);
}

body.research-page .initials {
  border-radius: 3px;
}

body.research-page .reward-card {
  border-radius: 4px !important;
  box-shadow: none !important;
}

body.research-page .reward-value {
  font-family: "Source Sans 3", Arial, sans-serif !important;
  font-variant-numeric: tabular-nums;
}

body.research-page .survey-card {
  border-radius: 5px !important;
  box-shadow: none !important;
}

body.research-page .survey-top .eyebrow,
body.research-page .step-label {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}

body.research-page .progress-track,
body.research-page .progress-track span {
  border-radius: 1px !important;
}

body.research-page .survey-card h2 {
  font-size: clamp(1.75rem, 2.3vw, 2.15rem);
}

body.research-page legend,
body.research-page .story-label {
  font-size: 0.96rem;
  font-weight: 650;
}

body.research-page .question-number {
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

body.research-page .choice {
  min-height: 52px;
  border-radius: 3px !important;
  font-size: 0.9rem;
  box-shadow: none !important;
}

body.research-page .choice:hover {
  background: var(--research-choice-hover);
}

body.research-page .choice:has(input:checked) {
  border-color: var(--research-editorial-blue) !important;
  background: var(--research-choice-selected) !important;
  box-shadow: inset 3px 0 0 var(--research-editorial-blue) !important;
}

body.research-page :is(input[type="text"], input[type="email"], textarea, select) {
  border-radius: 3px !important;
  box-shadow: none !important;
}

body.research-page .optional-followup,
body.research-page .research-faq,
body.research-page .research-footer {
  border-color: var(--research-panel-line) !important;
}

body.research-page .primary-button,
body.research-page .back-button,
body.research-page .thank-you-actions .secondary-button {
  border-radius: 3px !important;
  box-shadow: none !important;
}

body.research-page .primary-button {
  font-size: 0.95rem;
  font-weight: 700;
}

body.research-page .privacy-note,
body.research-page .send-note {
  line-height: 1.5;
}

@media (max-width: 900px) {
  body.research-page .research-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  body.research-page .intro {
    max-width: 620px;
  }

  body.research-page .survey-card {
    width: 100%;
    margin-top: 18px;
  }
}

@media (max-width: 760px) {
  body.research-page .research-header {
    min-height: 58px;
    padding: 9px 14px;
  }

  body.research-page .brand {
    font-size: 23px;
  }

  body.research-page .research-layout {
    padding: 18px 14px 32px;
  }

  body.research-page h1 {
    max-width: 11ch;
    font-size: clamp(2.4rem, 11vw, 3.2rem);
  }

  body.research-page .reward-card {
    border-radius: 3px !important;
  }

  body.research-page .survey-card {
    margin-top: 16px;
    padding: 18px 15px;
    border-radius: 4px !important;
  }

  body.research-page .choices {
    grid-template-columns: minmax(0, 1fr);
    gap: 7px;
  }

  body.research-page .choice:last-child:nth-child(odd) {
    grid-column: auto;
  }

  body.research-page .choice {
    min-height: 50px;
    padding: 11px 12px;
    font-size: 0.92rem;
  }

  body.research-page .primary-button {
    min-height: 52px;
  }
}