:root {
  --ink: #13203c;
  --ink-soft: #3b4a67;
  --muted: #66738d;
  --line: #dfe5f0;
  --line-strong: #ccd6e6;
  --surface: #ffffff;
  --surface-subtle: #f7f9fd;
  --canvas: #eef2f9;
  --navy: #111a35;
  --violet: #6258e8;
  --violet-dark: #4d43ce;
  --cyan: #30c7d6;
  --success: #247b5b;
  --warning: #9a6412;
  --shadow: 0 22px 60px rgba(24, 40, 75, 0.1);
  --radius-lg: 24px;
  --radius-md: 15px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: "Inter", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.page-shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: #fff;
  background: var(--violet-dark);
  border-radius: 8px;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.brief-header {
  position: relative;
  z-index: 2;
  color: #f7f9ff;
  background: var(--navy);
}

.brief-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brief-brand {
  display: inline-flex;
  align-items: center;
}

.brief-brand img {
  width: 181px;
  height: auto;
}

.back-link {
  color: #d9e2fb;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.back-link:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.brief-hero {
  position: relative;
  overflow: hidden;
  padding: 86px 0 110px;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(98, 88, 232, 0.24), transparent 46%),
    radial-gradient(circle at 77% 35%, rgba(48, 199, 214, 0.2), transparent 28%),
    var(--navy);
}

.brief-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.38;
  background-image:
    linear-gradient(rgba(190, 214, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(190, 214, 255, 0.1) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent);
}

.brief-hero__content {
  position: relative;
}

.brief-hero__glow {
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  filter: blur(4px);
  pointer-events: none;
}

.brief-hero__glow--one {
  top: -290px;
  right: 2%;
  background: rgba(99, 88, 232, 0.45);
}

.brief-hero__glow--two {
  right: 23%;
  bottom: -380px;
  background: rgba(42, 193, 212, 0.16);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  color: #aebcff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.2;
  text-transform: uppercase;
}

.eyebrow > span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(48, 199, 214, 0.16);
}

.eyebrow--dark {
  margin-bottom: 11px;
  color: var(--violet-dark);
}

.brief-hero h1 {
  max-width: 820px;
  margin: 0;
  font-family: "Manrope", "Inter", sans-serif;
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.brief-hero__lead {
  max-width: 740px;
  margin: 27px 0 0;
  color: #dce5ff;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.65;
}

.brief-benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 855px;
  margin: 46px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(201, 215, 255, 0.19);
  border-radius: var(--radius-md);
  background: rgba(16, 29, 60, 0.44);
  backdrop-filter: blur(10px);
}

.brief-benefits li {
  min-height: 81px;
  padding: 17px 22px;
}

.brief-benefits li + li {
  border-left: 1px solid rgba(201, 215, 255, 0.18);
}

.brief-benefits strong,
.brief-benefits span {
  display: block;
}

.brief-benefits strong {
  color: #fff;
  font-family: "Manrope", "Inter", sans-serif;
  font-size: 16px;
}

.brief-benefits span {
  margin-top: 3px;
  color: #b9c6ed;
  font-size: 13px;
}

.brief-workspace {
  position: relative;
  margin-top: -44px;
  padding: 0 0 80px;
}

.brief-layout {
  display: grid;
  grid-template-columns: 225px minmax(0, 1fr);
  align-items: start;
  gap: 28px;
}

.brief-sidebar__sticky {
  position: sticky;
  top: 24px;
  padding: 23px 20px;
  color: #dce5ff;
  background: #1a2850;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 36px rgba(18, 32, 63, 0.2);
}

.brief-sidebar__label {
  margin: 0 0 4px;
  color: #aebcff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brief-progress__count {
  display: block;
  color: #fff;
  font-family: "Manrope", "Inter", sans-serif;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.brief-progress {
  height: 6px;
  margin-top: 14px;
  overflow: hidden;
  background: rgba(223, 230, 255, 0.18);
  border-radius: 99px;
}

.brief-progress span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #44d8dc, #8f82f7);
  transition: width 220ms ease;
}

.brief-save-status {
  min-height: 39px;
  margin: 12px 0 17px;
  color: #bac7ea;
  font-size: 12px;
  line-height: 1.45;
}

.brief-save-status.is-warning {
  color: #ffd393;
}

.brief-section-nav {
  display: grid;
  border-top: 1px solid rgba(223, 230, 255, 0.13);
}

.brief-section-nav a {
  padding: 8px 0;
  color: #d7e0f7;
  font-size: 13px;
  line-height: 1.25;
  text-decoration: none;
}

.brief-section-nav a:hover,
.brief-section-nav a:focus-visible {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.brief-form {
  min-width: 0;
}

.brief-form__intro {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin: 0 0 16px;
  padding: 31px 36px 29px;
  background: var(--surface);
  border: 1px solid rgba(213, 221, 236, 0.75);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.brief-form__intro h2 {
  margin: 0;
  font-family: "Manrope", "Inter", sans-serif;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: -0.04em;
  line-height: 1.15;
}

.brief-form__intro p:not(.eyebrow) {
  max-width: 570px;
  margin: 10px 0 0;
  color: var(--ink-soft);
}

.brief-form__badge {
  flex: 0 0 auto;
  margin-top: 4px;
  padding: 8px 11px;
  color: var(--success);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  background: #e9f7f0;
  border-radius: 99px;
}

.brief-section {
  min-width: 0;
  margin: 16px 0 0;
  padding: 0 36px;
  background: var(--surface);
  border: 1px solid rgba(213, 221, 236, 0.75);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.brief-section legend {
  width: 100%;
  padding: 30px 0 23px;
  color: var(--ink);
  font-family: "Manrope", "Inter", sans-serif;
  font-size: clamp(22px, 2.5vw, 29px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.brief-section legend span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-right: 10px;
  color: #fff;
  font-family: "Inter", Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  vertical-align: 3px;
  background: var(--violet);
  border-radius: 10px;
}

.section-hint {
  margin: -10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.brief-question {
  padding: 25px 0 26px;
  border-top: 1px solid var(--line);
}

.brief-question > label,
.question-label {
  display: block;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.optional {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.field-hint {
  margin: 6px 0 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.brief-input {
  display: block;
  width: 100%;
  margin-top: 12px;
  padding: 13px 15px;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.45;
  background: #fbfcff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.brief-input::placeholder {
  color: #9ba8bd;
}

.brief-input:hover {
  border-color: #aebbd1;
}

.brief-input:focus {
  background: #fff;
  border-color: var(--violet);
  box-shadow: 0 0 0 4px rgba(98, 88, 232, 0.13);
}

.brief-textarea {
  min-height: 112px;
  resize: vertical;
}

.brief-input--other {
  margin-top: 12px;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin-top: 13px;
}

.choice-grid--compact {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.choice {
  display: flex;
  align-items: flex-start;
  min-height: 52px;
  gap: 10px;
  padding: 13px 14px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.35;
  background: #fbfcff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: color 140ms ease, background 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}

.choice:hover {
  color: var(--ink);
  border-color: #bac5dd;
}

.choice.is-selected {
  color: #37308f;
  background: #f3f1ff;
  border-color: #9d94f5;
  box-shadow: inset 0 0 0 1px rgba(98, 88, 232, 0.08);
}

.choice input {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  margin: 1px 0 0;
  accent-color: var(--violet);
}

.choice:focus-within {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(98, 88, 232, 0.14);
}

.brief-privacy-note {
  display: flex;
  gap: 15px;
  margin-top: 16px;
  padding: 21px 23px;
  color: #31566b;
  background: #eaf8fa;
  border: 1px solid #c6ebed;
  border-radius: var(--radius-md);
}

.brief-privacy-note__icon {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 27px;
  height: 27px;
  margin-top: 1px;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  background: #21a4af;
  border-radius: 50%;
}

.brief-privacy-note strong {
 display: block;
  color: #164e66;
  font-size: 14px;
}

.brief-privacy-note p {
  margin: 3px 0 0;
  font-size: 13px;
  line-height: 1.55;
}

.brief-privacy-note a {
  color: inherit;
  font-weight: 700;
  text-underline-offset: 3px;
}

.brief-actions {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-top: 16px;
  padding: 26px 28px;
  background: #fff;
  border: 1px solid rgba(213, 221, 236, 0.75);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}

.brief-actions__primary {
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 16px;
}

.brief-actions__primary p {
  max-width: 270px;
  min-height: 20px;
  margin: 0 0 1px;
  color: var(--success);
  font-size: 12px;
  line-height: 1.35;
  text-align: right;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 19px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 11px;
  transition: background 140ms ease, border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:focus-visible,
.back-link:focus-visible,
.brief-section-nav a:focus-visible,
.brief-privacy-note a:focus-visible,
.brief-footer a:focus-visible {
  outline: 3px solid rgba(48, 199, 214, 0.7);
  outline-offset: 3px;
}

.button--primary {
  gap: 9px;
  color: #fff;
  background: var(--violet);
  box-shadow: 0 9px 20px rgba(79, 67, 206, 0.24);
}

.button--primary:hover {
  background: var(--violet-dark);
  box-shadow: 0 12px 24px rgba(79, 67, 206, 0.31);
}

.button--primary span {
  font-size: 18px;
  line-height: 0;
}

.button--secondary {
  color: var(--ink-soft);
  background: #fff;
  border-color: var(--line-strong);
}

.button--secondary:hover {
  color: var(--ink);
  background: #f7f9fd;
  border-color: #aebbd1;
}

.brief-footer {
  padding: 27px 0;
  color: #c9d4f0;
  font-size: 13px;
  background: var(--navy);
}

.brief-footer .page-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brief-footer a {
  color: #f1f4ff;
  font-weight: 600;
  text-underline-offset: 4px;
}

@media (max-width: 980px) {
  .brief-layout {
    grid-template-columns: 1fr;
  }

  .brief-sidebar__sticky {
    position: static;
    display: grid;
    grid-template-columns: minmax(190px, 1fr) minmax(200px, 1.6fr);
    column-gap: 30px;
    align-items: center;
    padding: 19px 22px;
  }

  .brief-sidebar__label,
  .brief-progress__count,
  .brief-progress,
  .brief-save-status {
    grid-column: 1;
  }

  .brief-section-nav {
    grid-row: 1 / span 4;
    grid-column: 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 18px;
    border-top: 0;
    border-left: 1px solid rgba(223, 230, 255, 0.13);
    padding-left: 22px;
  }

  .brief-section-nav a {
    padding: 5px 0;
  }
}

@media (max-width: 700px) {
  .page-shell {
    width: min(100% - 30px, 1180px);
  }

  .brief-header__inner {
    min-height: 67px;
  }

  .brief-brand img {
    width: 158px;
  }

  .brief-hero {
    padding: 62px 0 77px;
  }

  .brief-hero__lead {
    margin-top: 20px;
    font-size: 16px;
  }

  .brief-benefits {
    grid-template-columns: 1fr;
    margin-top: 34px;
  }

  .brief-benefits li {
    min-height: 0;
    padding: 14px 18px;
  }

  .brief-benefits li + li {
    border-top: 1px solid rgba(201, 215, 255, 0.18);
    border-left: 0;
  }

  .brief-workspace {
    margin-top: -26px;
    padding-bottom: 52px;
  }

  .brief-sidebar__sticky {
    display: block;
    padding: 18px;
  }

  .brief-save-status {
    min-height: 0;
    margin-bottom: 14px;
  }

  .brief-section-nav {
    display: none;
  }

  .brief-form__intro,
  .brief-section {
    border-radius: 18px;
  }

  .brief-form__intro {
    display: block;
    padding: 25px 21px 23px;
  }

  .brief-form__badge {
    display: inline-block;
    margin-top: 16px;
  }

  .brief-section {
    padding: 0 21px;
  }

  .brief-section legend {
    padding: 25px 0 20px;
  }

  .brief-question {
    padding: 21px 0;
  }

  .choice-grid,
  .choice-grid--compact {
    grid-template-columns: 1fr;
  }

  .brief-actions {
    display: grid;
    padding: 20px;
  }

  .brief-actions .button {
    width: 100%;
  }

  .brief-actions__primary {
    display: grid;
    gap: 11px;
  }

  .brief-actions__primary p {
    max-width: none;
    min-height: 0;
    margin: 0;
    text-align: left;
  }

  .brief-footer .page-shell {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* 2026-08: the brief shares the landing page's dark glass visual language. */
:root {
  --ink: #0f172a;
  --ink-deep: #080e1d;
  --primary: #6366f1;
  --primary-dark: #4548c9;
  --signal: #06b6d4;
  --signal-soft: #cffafe;
  --paper: #ffffff;
  --text: #172033;
  --muted: #5d687c;
  --line: #dce1ea;
  --glass-surface: rgba(15, 23, 42, 0.56);
  --glass-surface-strong: rgba(8, 14, 29, 0.74);
  --glass-line: rgba(255, 255, 255, 0.12);
  --glass-line-soft: rgba(255, 255, 255, 0.075);
  --glass-text: #eef4ff;
  --glass-muted: rgba(213, 224, 241, 0.66);
  --glass-shadow: 0 34px 90px rgba(2, 6, 23, 0.28);
  --header-height: 76px;
  --container: 1200px;
  --font-sans: "Inter", "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  --font-display: "Manrope", "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  --heading-display: clamp(2.2rem, 3.75vw, 3.65rem);
  --violet: var(--primary);
  --violet-dark: var(--primary-dark);
  --cyan: var(--signal);
  --navy: var(--ink-deep);
  --surface: var(--glass-surface);
  --surface-subtle: rgba(8, 14, 29, 0.52);
  --line-strong: var(--glass-line);
  --shadow: var(--glass-shadow);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
}

html {
  overflow-x: clip;
  scroll-padding-top: calc(var(--header-height) + 24px);
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  color: var(--glass-text);
  background:
    radial-gradient(circle at 12% 18%, rgba(6, 182, 212, 0.08), transparent 28%),
    radial-gradient(circle at 86% 52%, rgba(99, 102, 241, 0.11), transparent 30%),
    var(--ink-deep);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  color: var(--ink);
  background: var(--signal-soft);
}

.page-shell {
  width: min(var(--container), calc(100% - 48px));
}

.skip-link {
  z-index: 1000;
  min-height: 44px;
  padding: 10px 16px;
  color: var(--ink);
  background: var(--paper);
  border-radius: var(--radius-sm);
  box-shadow: var(--glass-shadow);
}

.brief-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: var(--header-height);
  color: var(--glass-text);
  background: rgba(8, 14, 29, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 42px rgba(2, 6, 23, 0.2);
  -webkit-backdrop-filter: blur(22px) saturate(135%);
  backdrop-filter: blur(22px) saturate(135%);
}

.brief-header__inner {
  min-height: var(--header-height);
}

.brief-brand {
  min-height: 44px;
}

.brief-brand img {
  width: 180px;
  filter: brightness(0) invert(1);
  opacity: 0.94;
}

.back-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: rgba(226, 233, 245, 0.68);
  font-size: 0.91rem;
  font-weight: 620;
}

.back-link:hover {
  color: #a7f3ff;
  text-decoration: none;
}

.brief-hero {
  isolation: isolate;
  overflow: clip;
  padding: clamp(76px, 9vw, 124px) 0 clamp(70px, 8vw, 108px);
  border-bottom: 1px solid var(--glass-line-soft);
  background:
    radial-gradient(circle at 88% 4%, rgba(99, 102, 241, 0.24), transparent 32%),
    radial-gradient(circle at 8% 100%, rgba(6, 182, 212, 0.13), transparent 31%),
    linear-gradient(132deg, #0f172a 0%, #10182d 47%, #0a1224 100%);
}

.brief-hero::before {
  z-index: -1;
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 88%);
}

.brief-hero__content {
  z-index: 1;
}

.brief-hero__glow {
  z-index: -1;
  width: 360px;
  height: 360px;
  filter: blur(110px);
  opacity: 0.16;
}

.brief-hero__glow--one {
  top: 5%;
  right: 20%;
  background: var(--primary);
}

.brief-hero__glow--two {
  right: auto;
  bottom: -45%;
  left: 9%;
  background: var(--signal);
}

.eyebrow {
  gap: 10px;
  margin-bottom: 20px;
  color: #a7f3ff;
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.13em;
  line-height: 1.35;
}

.eyebrow > span {
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  background: var(--signal);
  box-shadow: 0 0 0 5px rgba(6, 182, 212, 0.14), 0 0 18px rgba(6, 182, 212, 0.7);
}

.eyebrow--dark {
  color: #a7f3ff;
}

.brief-hero h1,
.brief-form__intro h2,
.brief-section legend {
  color: var(--glass-text);
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: 0.035em;
  line-height: 1.12;
  text-transform: uppercase;
  text-wrap: balance;
}

.brief-hero h1 {
  max-width: 730px;
  font-size: clamp(2rem, 3vw, 3rem);
}

.brief-hero__lead {
  max-width: 680px;
  color: var(--glass-muted);
  font-size: 1.04rem;
}

.brief-benefits {
  max-width: 855px;
  border-color: var(--glass-line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018)),
    var(--glass-surface);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.055);
  -webkit-backdrop-filter: blur(20px) saturate(125%);
  backdrop-filter: blur(20px) saturate(125%);
}

.brief-benefits li + li {
  border-left-color: var(--glass-line);
}

.brief-benefits strong {
  color: var(--glass-text);
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.brief-benefits span {
  color: var(--glass-muted);
}

.brief-workspace {
  isolation: isolate;
  overflow: hidden;
  margin-top: 0;
  padding: clamp(54px, 7vw, 86px) 0;
  border-bottom: 1px solid var(--glass-line-soft);
  background:
    radial-gradient(circle at 84% 16%, rgba(99, 102, 241, 0.14), transparent 30%),
    radial-gradient(circle at 6% 82%, rgba(6, 182, 212, 0.08), transparent 27%),
    linear-gradient(180deg, #0a1224 0%, #080e1d 100%);
}

.brief-workspace::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  opacity: 0.34;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 10%, #000 90%, transparent);
}

.brief-layout {
  position: relative;
  z-index: 1;
  gap: 32px;
}

.brief-sidebar__sticky {
  top: calc(var(--header-height) + 24px);
  color: var(--glass-text);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018)),
    var(--glass-surface-strong);
  border-color: var(--glass-line);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow), inset 0 1px rgba(255, 255, 255, 0.055);
  -webkit-backdrop-filter: blur(20px) saturate(125%);
  backdrop-filter: blur(20px) saturate(125%);
}

.brief-sidebar__label {
  color: #a7f3ff;
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.13em;
}

.brief-progress__count {
  color: var(--glass-text);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.brief-progress {
  background: rgba(255, 255, 255, 0.12);
}

.brief-progress span {
  background: linear-gradient(90deg, var(--signal), var(--primary));
}

.brief-save-status {
  color: var(--glass-muted);
}

.brief-save-status.is-warning {
  color: #ffd393;
}

.brief-section-nav {
  border-top-color: var(--glass-line);
}

.brief-section-nav a {
  color: rgba(226, 233, 245, 0.68);
  font-size: 0.82rem;
  font-weight: 620;
}

.brief-section-nav a:hover,
.brief-section-nav a:focus-visible {
  color: #a7f3ff;
}

.brief-form {
  min-width: 0;
  padding: clamp(30px, 4.4vw, 58px);
  border: 1px solid var(--glass-line);
  border-radius: 32px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018)),
    var(--glass-surface);
  box-shadow: var(--glass-shadow), inset 0 1px rgba(255, 255, 255, 0.055);
  -webkit-backdrop-filter: blur(20px) saturate(125%);
  backdrop-filter: blur(20px) saturate(125%);
}

.brief-form__intro {
  margin: 0;
  padding: 0 0 clamp(28px, 4vw, 40px);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--glass-line);
  border-radius: 0;
  box-shadow: none;
}

.brief-form__intro h2 {
  font-size: clamp(2rem, 3.4vw, 3.1rem);
}

.brief-form__intro p:not(.eyebrow) {
  color: var(--glass-muted);
}

.brief-form__badge {
  color: #a7f3ff;
  background: rgba(6, 182, 212, 0.11);
  border: 1px solid rgba(6, 182, 212, 0.24);
}

.brief-section {
  margin: 0;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.brief-section legend {
  padding: clamp(30px, 4vw, 44px) 0 22px;
  font-size: clamp(1.55rem, 2.4vw, 2.25rem);
}

.brief-section legend span {
  color: #a7f3ff;
  background: rgba(99, 102, 241, 0.14);
  border: 1px solid rgba(99, 102, 241, 0.42);
  border-radius: 10px;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.07);
}

.section-hint {
  color: var(--glass-muted);
}

.brief-question {
  border-top-color: var(--glass-line);
}

.brief-question > label,
.question-label {
  color: var(--glass-text);
  font-weight: 650;
}

.optional,
.field-hint {
  color: var(--glass-muted);
}

.brief-input {
  color: var(--glass-text);
  background: rgba(8, 14, 29, 0.5);
  border-color: var(--glass-line);
  border-radius: 10px;
}

.brief-input::placeholder {
  color: rgba(213, 224, 241, 0.42);
}

.brief-input:hover {
  border-color: rgba(167, 243, 255, 0.35);
}

.brief-input:focus {
  color: var(--glass-text);
  background: rgba(8, 14, 29, 0.72);
  border-color: rgba(6, 182, 212, 0.75);
  box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.12);
}

.choice {
  color: var(--glass-muted);
  background: rgba(8, 14, 29, 0.5);
  border-color: var(--glass-line-soft);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.025);
}

.choice:hover {
  color: var(--glass-text);
  border-color: rgba(167, 243, 255, 0.36);
}

.choice.is-selected {
  color: var(--glass-text);
  background: linear-gradient(100deg, rgba(6, 182, 212, 0.13), rgba(99, 102, 241, 0.15));
  border-color: rgba(6, 182, 212, 0.54);
  box-shadow: inset 3px 0 var(--signal), inset 0 1px rgba(255, 255, 255, 0.055);
}

.choice input {
  accent-color: var(--primary);
}

.choice:focus-within {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.14);
}

.brief-privacy-note {
  color: var(--glass-muted);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.075), rgba(99, 102, 241, 0.07));
  border-color: var(--glass-line);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.045);
}

.brief-privacy-note__icon {
  color: #06121e;
  background: var(--signal);
}

.brief-privacy-note strong {
  color: var(--glass-text);
}

.brief-privacy-note a {
  color: #a7f3ff;
}

.brief-actions {
  margin: 28px 0 0;
  padding: clamp(26px, 3.8vw, 38px) 0 0;
  background: transparent;
  border: 0;
  border-top: 1px solid var(--glass-line);
  border-radius: 0;
  box-shadow: none;
}

.brief-actions__primary p {
  color: #8ee7cb;
}

.button {
  min-height: 52px;
  padding: 13px 23px;
  border-radius: var(--radius-sm);
  font-size: 0.96rem;
  font-weight: 720;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.button--primary {
  background: var(--primary);
  box-shadow: 0 12px 28px rgba(99, 102, 241, 0.28);
}

.button--primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 16px 34px rgba(69, 72, 201, 0.32);
}

.button--secondary {
  color: var(--glass-text);
  background: rgba(255, 255, 255, 0.055);
  border-color: var(--glass-line);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.035);
}

.button--secondary:hover {
  color: #a7f3ff;
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(167, 243, 255, 0.34);
}

@media (hover: hover) and (pointer: fine) {
  .button:hover {
    transform: translateY(-2px);
  }
}

.brief-footer {
  padding: 48px 0;
  color: rgba(226, 233, 245, 0.48);
  font-size: 0.81rem;
  background: #070c18;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.brief-footer .page-shell {
  align-items: flex-start;
}

.brief-footer__identity img {
  width: 170px;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
}

.brief-footer__identity span {
  display: block;
}

.brief-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: rgba(226, 233, 245, 0.68);
  font-size: 0.91rem;
  font-weight: 620;
}

.brief-footer a:hover {
  color: #a7f3ff;
}

@media (max-width: 900px) {
  :root {
    --header-height: 70px;
  }

  .brief-sidebar__sticky {
    position: static;
    display: grid;
    grid-template-columns: minmax(190px, 1fr) minmax(200px, 1.6fr);
    column-gap: 30px;
    align-items: center;
  }

  .brief-section-nav {
    display: grid;
    grid-row: 1 / span 4;
    grid-column: 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 18px;
    padding-left: 22px;
    border-top: 0;
    border-left: 1px solid var(--glass-line);
  }
}

@media (max-width: 720px) {
  :root {
    --heading-display: clamp(2.05rem, 9vw, 3rem);
  }

  .page-shell {
    width: calc(100% - 32px);
  }

  .brief-header__inner {
    min-height: 70px;
  }

  .brief-hero {
    padding: 70px 0 58px;
  }

  .brief-workspace {
    padding: 42px 0 56px;
  }

  .brief-sidebar__sticky {
    display: block;
    padding: 20px;
  }

  .brief-section-nav {
    display: none;
  }

  .brief-form {
    padding: 24px;
    border-radius: 24px;
  }

  .brief-form__intro {
    display: block;
    padding-bottom: 26px;
  }

  .brief-form__badge {
    display: inline-block;
    margin-top: 16px;
  }

  .brief-section legend {
    padding: 29px 0 20px;
  }

  .brief-actions {
    display: grid;
    padding-top: 24px;
  }

  .brief-actions__primary {
    display: grid;
    gap: 11px;
  }

  .brief-actions__primary p {
    max-width: none;
    min-height: 0;
    margin: 0;
    text-align: left;
  }

  .brief-footer {
    padding: 36px 0;
  }

  .brief-footer .page-shell {
    display: grid;
    gap: 18px;
  }
}

@media (max-width: 480px) {
  .page-shell {
    width: calc(100% - 24px);
  }

  .brief-form {
    padding: 20px 16px;
    border-radius: 20px;
  }

  .brief-section legend {
    font-size: 1.45rem;
  }

  .brief-privacy-note {
    padding: 18px;
  }
}

.brief-actions__primary {
  display: grid;
  justify-items: end;
  gap: 10px;
}

.brief-export-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.brief-actions__primary .brief-share-hint {
  max-width: 320px;
  min-height: 0;
  margin: 0;
  color: var(--glass-muted);
  font-size: 0.76rem;
  line-height: 1.45;
  text-align: right;
}

.button--share {
  gap: 9px;
  color: #06121e;
  background: var(--signal);
  border-color: transparent;
  box-shadow: 0 12px 28px rgba(6, 182, 212, 0.2);
}

.button--share:hover {
  color: #06121e;
  background: #22d3ee;
  box-shadow: 0 16px 34px rgba(6, 182, 212, 0.28);
}

.button--share span {
  font-size: 1.1rem;
  line-height: 1;
}

.button:disabled {
  cursor: progress;
  opacity: 0.68;
  transform: none !important;
}

@media (max-width: 720px) {
  .brief-actions__primary {
    justify-items: stretch;
  }

  .brief-export-actions {
    display: grid;
    justify-content: stretch;
  }

  .brief-actions__primary .brief-share-hint {
    max-width: none;
    text-align: left;
  }

  .brief-actions.is-share-available #download-brief {
    color: var(--glass-text);
    background: rgba(255, 255, 255, 0.055);
    border-color: var(--glass-line);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.035);
  }
}