/* ==========================================================================
   Trusted Advisory Design System — token implementation
   Source of truth: /TrustedAdvisoryDesignSystem.md
   ========================================================================== */

:root {
  /* Colors */
  --color-primary: #662776;
  --color-primary-deep: #491c54;
  --color-primary-press: #35143d;
  --color-primary-soft: #9539ac;
  --color-primary-bg-subdued: #efe3f2;
  --color-accent-amber: #996900;
  --color-accent-amber-bright: #e69d00;
  --color-accent-amber-soft: #f5e8cf;
  --color-ink: #1f1a22;
  --color-ink-secondary: #4a4351;
  --color-ink-mute: #6c6672;
  --color-on-primary: #ffffff;
  --color-canvas: #faf7f2;
  --color-canvas-soft: #f2ede4;
  --color-canvas-panel: #ffffff;
  --color-hairline: #e6ddd2;
  --color-hairline-input: #d6c8da;

  /* Fonts */
  --font-serif: "Fraunces", Georgia, serif;
  --font-sans: "Work Sans", "Segoe UI", system-ui, sans-serif;

  /* Radius */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 16px;
  --radius-pill: 9999px;

  /* Spacing */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;
  --space-huge: 96px;

  /* Elevation */
  --shadow-level-2: rgba(31, 26, 34, 0.08) 0 8px 24px, rgba(31, 26, 34, 0.04) 0 2px 6px;
}

/* ==========================================================================
   Base / reset
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
}

/* ==========================================================================
   Typography tokens
   ========================================================================== */

.text-display-xxl {
  font-family: var(--font-serif);
  font-size: 60px;
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.5px;
}

.text-display-xl {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.3px;
}

.text-display-lg {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.2px;
}

.text-display-md {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.2;
}

.text-stat-numeral {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.5px;
  font-variant-numeric: oldstyle-nums;
}

.text-pull-quote {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 400;
  font-style: italic;
  line-height: 1.45;
}

.text-heading-lg {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
}

.text-heading-md {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
}

.text-heading-sm {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

.text-eyebrow {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.text-body-lg {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.6;
}

.text-body-sm {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
}

.text-caption {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.2px;
}

.text-micro {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.2px;
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.section {
  padding-block: var(--space-huge);
}

.section--soft {
  background: var(--color-canvas-soft);
}

.section-header {
  max-width: 640px;
  margin-bottom: var(--space-xxl);
}

.section-header .text-eyebrow {
  color: var(--color-primary-deep);
  display: block;
  margin-bottom: var(--space-sm);
}

.section-header .text-body-lg {
  color: var(--color-ink-secondary);
  margin-top: var(--space-md);
}

.grid {
  display: grid;
  gap: var(--space-xl);
}

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

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

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

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn-primary,
.btn-secondary,
.btn-on-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.btn-primary:hover,
.btn-primary:active {
  background: var(--color-primary-press);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-bg-subdued);
}

.btn-on-dark {
  background: var(--color-canvas);
  color: var(--color-primary-press);
}

.btn-on-dark:hover {
  background: var(--color-canvas-soft);
}

.btn-sm {
  font-size: 14px;
  padding: 8px 18px;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card-panel {
  background: var(--color-canvas-panel);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.card-panel--principle {
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card-panel--principle:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-soft);
  box-shadow: var(--shadow-level-2);
}

.card-panel__icon {
  position: absolute;
  top: -24px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-level-2);
}

.card-panel__icon svg {
  width: 24px;
  height: 24px;
}

.card-challenge-solution {
  position: relative;
  background: var(--color-canvas-panel);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card-challenge-solution:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-soft);
  box-shadow: var(--shadow-level-2);
}

.card-challenge-solution__icon {
  position: absolute;
  top: -24px;
  left: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-level-2);
}

.card-challenge-solution__icon svg {
  width: 24px;
  height: 24px;
}

.card-challenge-solution .text-eyebrow {
  color: var(--color-primary-deep);
}

.card-challenge-solution__block + .card-challenge-solution__block {
  margin-top: var(--space-xs);
}

.card-challenge-solution__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xxs);
  margin-top: var(--space-xs);
}

.card-challenge-solution__list li {
  color: var(--color-ink-secondary);
  padding-left: var(--space-md);
  position: relative;
}

.card-challenge-solution__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent-amber);
}

.card-challenge-solution .btn-secondary {
  margin-top: auto;
  align-self: flex-start;
}

.card-founder {
  background: var(--color-canvas-panel);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-founder__photo {
  background: var(--color-primary-bg-subdued);
  aspect-ratio: 4 / 5;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.card-founder__photo img {
  width: 78%;
  height: auto;
  object-fit: contain;
  object-position: bottom;
}

.card-founder__body {
  padding: var(--space-lg);
}

.card-founder__role {
  color: var(--color-accent-amber);
  display: block;
  margin: var(--space-xxs) 0 var(--space-md);
}

.card-founder__bio {
  color: var(--color-ink-secondary);
  margin-top: var(--space-md);
}

.card-quote {
  background: var(--color-canvas-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-xxl);
  box-shadow: var(--shadow-level-2);
}

.card-quote__attribution {
  display: block;
  margin-top: var(--space-lg);
  color: var(--color-ink-mute);
}

/* ==========================================================================
   Credential strip
   ========================================================================== */

.credential-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.credential-strip__item {
  text-align: center;
  padding-inline: var(--space-md);
  border-left: 1px solid var(--color-primary-bg-subdued);
}

.credential-strip__item:first-child {
  border-left: none;
}

.credential-strip__number {
  color: var(--color-primary);
  display: block;
}

.credential-strip__label {
  color: var(--color-ink-mute);
  display: block;
  margin-top: var(--space-xs);
}

/* ==========================================================================
   Tags
   ========================================================================== */

.tag-eyebrow {
  display: inline-block;
  background: var(--color-primary-bg-subdued);
  color: var(--color-primary-deep);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

/* ==========================================================================
   Forms
   ========================================================================== */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xxs);
  margin-bottom: var(--space-md);
}

.field label {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink-secondary);
}

.field input,
.field textarea {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--color-ink);
  background: var(--color-canvas-panel);
  border: 1px solid var(--color-hairline-input);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  min-height: 44px;
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.field--honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin-top: var(--space-md);
  font-family: var(--font-sans);
  font-size: 14px;
}

.form-status[data-state="success"] {
  color: var(--color-primary-deep);
}

.form-status[data-state="error"] {
  color: var(--color-accent-amber);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav-bar {
  background: var(--color-canvas);
  padding: 20px 0;
  border-bottom: 1px solid var(--color-hairline);
  position: relative;
  z-index: 10;
}

.nav-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.nav-bar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
}

.nav-bar__logo img {
  height: 36px;
  width: auto;
}

.nav-bar__wordmark {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 500;
  color: var(--color-primary);
  white-space: nowrap;
}

.nav-bar__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-bar__links a {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-ink);
}

.nav-bar__links a:hover {
  color: var(--color-primary);
}

.nav-bar__toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-xs);
}

.nav-bar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  margin: 4px 0;
}

/* ==========================================================================
   Links
   ========================================================================== */

.link-on-light {
  color: var(--color-primary);
  text-decoration: none;
}

.link-on-light:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer-light {
  background: var(--color-ink);
  color: var(--color-canvas-soft);
  padding: var(--space-huge) 0 var(--space-xl);
}

.footer-light__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xxl);
}

.footer-light__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.footer-light__logo img {
  height: 32px;
  width: auto;
}

.footer-light__wordmark {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-canvas);
}

.footer-light h4 {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-canvas);
  margin-bottom: var(--space-md);
}

.footer-light a {
  display: block;
  text-decoration: none;
  color: var(--color-canvas-soft);
  opacity: 0.85;
  padding: 4px 0;
  font-size: 14px;
}

.footer-light a:hover {
  opacity: 1;
  color: var(--color-on-primary);
}

.footer-light__legal {
  border-top: 1px solid rgba(250, 247, 242, 0.15);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  color: var(--color-ink-mute);
  font-size: 13px;
}

/* ==========================================================================
   Hero + cloud-mark watermark (signature background device)
   ========================================================================== */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-huge);
}

.hero .container {
  position: relative;
}

.hero .container::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 680px;
  aspect-ratio: 1305 / 512;
  background-image: url("/assets/img/hero-watermark.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.07;
  pointer-events: none;
  z-index: 0;
  animation: watermark-drift 26s ease-in-out infinite;
}

@keyframes watermark-drift {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
  }
  50% {
    transform: translate(calc(-50% + 10px), calc(-50% - 8px)) scale(1.02) rotate(0.8deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero .container::before {
    animation: none;
  }
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero .text-display-xxl {
  color: var(--color-ink);
  margin-bottom: var(--space-lg);
}

.hero .text-body-lg {
  color: var(--color-ink-secondary);
  margin-bottom: var(--space-xl);
}

.section-break {
  position: relative;
  overflow: hidden;
}

.section-break::before {
  content: "";
  position: absolute;
  bottom: -15%;
  left: -10%;
  width: 45%;
  max-width: 480px;
  aspect-ratio: 1305 / 512;
  background-image: url("/assets/img/logo-icon.png");
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.04;
  pointer-events: none;
  transform: rotate(8deg);
}

/* ==========================================================================
   Logo strip (scrolling marquee of customer logos)
   ========================================================================== */

.section-logos {
  overflow: hidden;
  padding-block: 56px;
}

.logo-marquee {
  width: 100%;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.logo-marquee__track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: logo-marquee 28s linear infinite;
  will-change: transform;
}

.logo-marquee__item {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: 64px;
}

.logo-marquee__item img {
  height: 40px;
  width: auto;
  filter: grayscale(100%);
  opacity: 0.5;
  transition: opacity 0.2s ease, filter 0.2s ease;
}

.logo-marquee__item img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

.logo-marquee__item--sm img {
  height: 28px;
}

.logo-marquee__item--lg img {
  height: 48px;
}

@keyframes logo-marquee {
  0% {
    transform: translateX(0%);
  }
  100% {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .logo-marquee__track {
    animation: none;
  }
}

@media (max-width: 767px) {
  .logo-marquee__item {
    padding-inline: 40px;
  }

  .logo-marquee__item img {
    height: 30px;
  }

  .logo-marquee__item--sm img {
    height: 21px;
  }

  .logo-marquee__item--lg img {
    height: 36px;
  }
}

/* ==========================================================================
   CTA banner (scrolling marquee over background image)
   ========================================================================== */

.section-cta-banner {
  position: relative;
  overflow: hidden;
  padding-block: 180px;
  background-image: url("/assets/img/home-cta-banner.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.section-cta-banner__marquee {
  width: 100%;
  overflow: hidden;
}

.section-cta-banner__track {
  display: flex;
  width: max-content;
  animation: cta-marquee 34s linear infinite;
  will-change: transform;
}

.section-cta-banner__track span {
  flex: 0 0 auto;
  padding-right: 220px;
  white-space: nowrap;
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 500;
  color: var(--color-canvas);
}

@keyframes cta-marquee {
  0% {
    transform: translateX(0%);
  }
  100% {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .section-cta-banner__track {
    animation: none;
  }
}

@media (max-width: 767px) {
  .section-cta-banner {
    padding-block: 120px;
  }

  .section-cta-banner__track span {
    font-size: 22px;
    padding-right: 110px;
  }
}

/* ==========================================================================
   Video embed
   ========================================================================== */

.video-embed {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-ink);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ==========================================================================
   Utility
   ========================================================================== */

.text-center {
  text-align: center;
}

.mt-0 {
  margin-top: 0;
}

/* ==========================================================================
   Responsive behavior
   ========================================================================== */

@media (max-width: 1023px) {
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-light__grid {
    grid-template-columns: 1fr 1fr;
  }

  .credential-strip {
    grid-template-columns: repeat(2, 1fr);
    row-gap: var(--space-xl);
  }

  .credential-strip__item:nth-child(3) {
    border-left: none;
  }
}

@media (max-width: 767px) {
  .text-display-xxl {
    font-size: 34px;
  }

  .text-display-xl {
    font-size: 30px;
  }

  .text-display-lg {
    font-size: 26px;
  }

  .text-stat-numeral {
    font-size: 36px;
  }

  .section {
    padding-block: var(--space-xxl);
  }

  .hero {
    padding-block: var(--space-xxl);
  }

  .footer-light {
    padding-top: var(--space-xxl);
  }

  .grid--3,
  .grid--2 {
    grid-template-columns: 1fr;
  }

  .footer-light__grid {
    grid-template-columns: 1fr;
  }

  .nav-bar__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-lg);
    gap: var(--space-md);
    display: none;
  }

  .nav-bar__links.is-open {
    display: flex;
  }

  .nav-bar__toggle {
    display: block;
  }

  .credential-strip {
    grid-template-columns: 1fr 1fr;
  }
}