/*
 * Codyn design system — semantic tokens and components.
 * Canonical names: paper, ink, graphite, mist, frost, aurora.
 * Theme: system default; override via data-theme + header toggle (localStorage).
 * Last modified: 2026-05-19
 */

/* Fonts: load via HTML (preconnect + Geist / Geist Mono, latin-ext). */

/* =============================================================================
   SEMANTIC TOKENS — LIGHT (default)
   ============================================================================= */

:root {
  color-scheme: light dark;

  /* Brand palette */
  --paper: #f7f6f1;
  --ink: #0b0f14;
  --graphite: #2a2f38;
  --mist: #e5e7e0;
  --frost: #fcfcfa;
  --aurora: #ff5b1f;
  --aurora-muted: #eb4d0e;
  --error: #ba1a1a;
  --on-error: #ffffff;

  /* Functional aliases (components reference these) */
  --bg: var(--paper);
  --bg-elevated: var(--frost);
  --bg-muted: var(--mist);
  --bg-inverse: var(--ink);
  --text: var(--ink);
  --text-secondary: var(--graphite);
  --text-on-inverse: var(--paper);
  --text-accent: var(--aurora);
  --hairline: #c5c6cb;
  --hairline-strong: var(--graphite);
  --focus-ring: var(--aurora);

  /* Typography families */
  --font-sans: "Geist", system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, monospace;

  /* Type scale */
  --type-display-lg-size: 5rem;
  --type-display-lg-lh: 5.5rem;
  --type-display-lg-weight: 300;
  --type-display-lg-tracking: -0.04em;

  --type-display-mobile-size: 3rem;
  --type-display-mobile-lh: 3.25rem;
  --type-display-mobile-weight: 300;
  --type-display-mobile-tracking: -0.02em;

  /* Signature statement — larger than hero display */
  --type-signature-size: clamp(3.5rem, 12vw, 7.5rem);
  --type-signature-lh: 1.05;
  --type-signature-weight: 300;
  --type-signature-tracking: -0.045em;

  --type-headline-lg-size: 3rem;
  --type-headline-lg-lh: 3.5rem;
  --type-headline-lg-weight: 700;
  --type-headline-lg-tracking: -0.02em;

  --type-headline-md-size: 2rem;
  --type-headline-md-lh: 2.5rem;
  --type-headline-md-weight: 700;
  --type-headline-md-tracking: -0.01em;

  --type-body-lg-size: 1.125rem;
  --type-body-lg-lh: 2rem;

  --type-body-md-size: 1rem;
  --type-body-md-lh: 1.75rem;

  --type-body-sm-size: 0.875rem;
  --type-body-sm-lh: 1.25rem;
  --type-body-sm-weight: 500;

  --type-technical-size: 0.875rem;
  --type-technical-lh: 1.25rem;

  --type-eyebrow-size: 0.6875rem;
  --type-eyebrow-lh: 1rem;
  --type-eyebrow-weight: 500;
  --type-eyebrow-tracking: 0.08em;

  /* Layout */
  --max-width: 80rem;
  --gutter: 1.5rem;
  --margin-mobile: 1.25rem;
  --section-space: 10rem;
  --section-space-mobile: 5rem;
  --header-height: 5rem;
  --hairline-width: 0.5px;
  --grid-base: 0.5rem;
  --radius: 0;

  /* Component spacing */
  --card-padding: 2.5rem;
  --service-card-min-height: 20rem;
}

/* =============================================================================
   SEMANTIC TOKENS — DARK (system or data-theme="dark")
   ============================================================================= */

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0b0f14;
    --ink: #f3f0f0;
    --graphite: #c2c6d2;
    --mist: #2a2f38;
    --frost: #181c21;
    --aurora: #ff5b1f;
    --aurora-muted: #ffb59e;
    --error: #ff6b6b;
    --on-error: #0b0f14;
    --bg: var(--paper);
    --bg-elevated: var(--frost);
    --bg-muted: var(--mist);
    --bg-inverse: #f3f0f0;
    --text: var(--ink);
    --text-secondary: var(--graphite);
    --text-on-inverse: #0b0f14;
    --hairline: #45474b;
    --hairline-strong: #75777b;
  }
}

[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0b0f14;
  --ink: #f3f0f0;
  --graphite: #c2c6d2;
  --mist: #2a2f38;
  --frost: #181c21;
  --aurora: #ff5b1f;
  --aurora-muted: #ffb59e;
  --error: #ff6b6b;
  --on-error: #0b0f14;
  --bg: var(--paper);
  --bg-elevated: var(--frost);
  --bg-muted: var(--mist);
  --bg-inverse: #f3f0f0;
  --text: var(--ink);
  --text-secondary: var(--graphite);
  --text-on-inverse: #0b0f14;
  --hairline: #45474b;
  --hairline-strong: #75777b;
}

[data-theme="light"] {
  color-scheme: light;
}

/* =============================================================================
   RESET & BASE
   ============================================================================= */

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--type-body-md-size);
  line-height: var(--type-body-md-lh);
  font-weight: 400;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* =============================================================================
   TYPOGRAPHY UTILITIES
   ============================================================================= */

.type-display-lg {
  font-family: var(--font-sans);
  font-size: var(--type-display-mobile-size);
  line-height: var(--type-display-mobile-lh);
  font-weight: var(--type-display-mobile-weight);
  letter-spacing: var(--type-display-mobile-tracking);
}

@media (min-width: 48rem) {
  .type-display-lg {
    font-size: var(--type-display-lg-size);
    line-height: var(--type-display-lg-lh);
    font-weight: var(--type-display-lg-weight);
    letter-spacing: var(--type-display-lg-tracking);
  }
}

.type-headline-lg {
  font-size: var(--type-headline-lg-size);
  line-height: var(--type-headline-lg-lh);
  font-weight: var(--type-headline-lg-weight);
  letter-spacing: var(--type-headline-lg-tracking);
}

.type-headline-md {
  font-size: var(--type-headline-md-size);
  line-height: var(--type-headline-md-lh);
  font-weight: var(--type-headline-md-weight);
  letter-spacing: var(--type-headline-md-tracking);
}

.type-body-lg {
  font-size: var(--type-body-lg-size);
  line-height: var(--type-body-lg-lh);
}

.type-body-md {
  font-size: var(--type-body-md-size);
  line-height: var(--type-body-md-lh);
}

.type-body-sm {
  font-size: var(--type-body-sm-size);
  line-height: var(--type-body-sm-lh);
  font-weight: var(--type-body-sm-weight);
}

.type-technical {
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  line-height: var(--type-technical-lh);
}

.type-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--type-eyebrow-size);
  line-height: var(--type-eyebrow-lh);
  font-weight: var(--type-eyebrow-weight);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
}

.text-secondary {
  color: var(--text-secondary);
}

.text-accent {
  color: var(--aurora);
}

/* =============================================================================
   LAYOUT
   ============================================================================= */

.codyn-shell {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--margin-mobile);
}

@media (min-width: 48rem) {
  .codyn-shell {
    padding-inline: var(--gutter);
  }
}

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

@media (min-width: 48rem) {
  .codyn-section {
    padding-block: var(--section-space);
  }
}

.codyn-grid {
  display: grid;
  gap: var(--gutter);
}

.codyn-grid--12 {
  grid-template-columns: 1fr;
}

@media (min-width: 48rem) {
  .codyn-grid--12 {
    grid-template-columns: repeat(12, 1fr);
  }
}

/* =============================================================================
   HAIRLINES
   ============================================================================= */

.codyn-hairline--top {
  border-top: var(--hairline-width) solid var(--hairline);
}

.codyn-hairline--bottom {
  border-bottom: var(--hairline-width) solid var(--hairline);
}

.codyn-hairline--y {
  border-block: var(--hairline-width) solid var(--hairline);
}

.codyn-hairline--all {
  border: var(--hairline-width) solid var(--hairline);
}

/* =============================================================================
   SKIP LINK & FOCUS
   ============================================================================= */

.codyn-skip {
  position: absolute;
  inset-inline-start: var(--margin-mobile);
  inset-block-start: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-120%);
  transition: transform 200ms var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-skip:focus {
  transform: translateY(0.5rem);
  outline: 2px solid var(--aurora);
  outline-offset: 2px;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* =============================================================================
   HEADER / NAV
   ============================================================================= */

.codyn-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: var(--bg);
  border-bottom: var(--hairline-width) solid var(--hairline);
}

.codyn-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.codyn-header__logo {
  font-size: var(--type-headline-md-size);
  font-weight: var(--type-headline-md-weight);
  letter-spacing: var(--type-headline-md-tracking);
  color: var(--text);
}

.codyn-header__nav {
  display: none;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (min-width: 48rem) {
  .codyn-header__nav {
    display: flex;
  }
}

.codyn-header__nav-link {
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  color: var(--text-secondary);
  position: relative;
  padding-block: 0.25rem;
  transition: color var(--duration-nav-underline, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-header__nav-link::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  height: var(--hairline-width);
  background: var(--aurora);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-nav-underline, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-header__nav-link:hover {
  color: var(--text);
}

.codyn-header__nav-link:hover::after {
  transform: scaleX(1);
}

.codyn-header__nav-link--active {
  color: var(--text);
  font-weight: 500;
}

.codyn-header__nav-link--active::after {
  transform: scaleX(1);
}

.codyn-header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.codyn-header__nav-wrap {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 48rem) {
  .codyn-header__nav-wrap {
    display: flex;
  }
}

/* Theme toggle — mono labels, no icon font */
.codyn-theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.5rem;
  border: var(--hairline-width) solid var(--hairline);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: var(--type-eyebrow-size);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  cursor: pointer;
  transition:
    color 200ms var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1)),
    border-color 200ms var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-theme-toggle:hover {
  color: var(--text);
  border-color: var(--hairline-strong);
}

.codyn-theme-toggle__icon {
  width: 0.875rem;
  height: 0.875rem;
  flex-shrink: 0;
}

.codyn-theme-toggle__icon--sun {
  display: none;
}

.codyn-theme-toggle--show-sun .codyn-theme-toggle__icon--moon {
  display: none;
}

.codyn-theme-toggle--show-sun .codyn-theme-toggle__icon--sun {
  display: block;
}

.codyn-header__menu-btn {
  display: flex;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
}

@media (min-width: 48rem) {
  .codyn-header__menu-btn {
    display: none;
  }
}

.codyn-nav-drawer {
  display: none;
  position: fixed;
  inset: var(--header-height) 0 0 0;
  z-index: 40;
  padding: var(--gutter);
  background: var(--bg);
  border-top: var(--hairline-width) solid var(--hairline);
  overflow-y: auto;
}

.codyn-nav-drawer.is-open {
  display: block;
}

.codyn-nav-drawer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.codyn-nav-drawer__link {
  display: block;
  padding: 1rem 0;
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  border-bottom: var(--hairline-width) solid var(--hairline);
  color: var(--text-secondary);
}

.codyn-nav-drawer__link--active {
  color: var(--text);
  font-weight: 500;
}

/* =============================================================================
   FOOTER
   ============================================================================= */

.codyn-footer {
  border-top: var(--hairline-width) solid var(--hairline);
  padding-block: var(--section-space-mobile);
}

@media (min-width: 48rem) {
  .codyn-footer {
    padding-block: var(--section-space);
  }
}

.codyn-footer__grid {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 48rem) {
  .codyn-footer__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.codyn-footer__brand {
  font-size: var(--type-headline-md-size);
  font-weight: var(--type-headline-md-weight);
  margin-block-end: 1rem;
}

.codyn-footer__meta {
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  color: var(--text-secondary);
}

.codyn-footer__address {
  margin-block-start: 1rem;
  font-style: normal;
}

.codyn-footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.codyn-footer__link {
  font-family: var(--font-mono);
  font-size: var(--type-eyebrow-size);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 200ms var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-footer__link:hover {
  color: var(--aurora-muted);
}

.codyn-footer__bar {
  margin-block-start: 3rem;
  padding-block-start: 1.5rem;
  border-top: var(--hairline-width) solid var(--hairline);
}

/* =============================================================================
   EYEBROW
   ============================================================================= */

.codyn-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--type-eyebrow-size);
  line-height: var(--type-eyebrow-lh);
  font-weight: var(--type-eyebrow-weight);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* =============================================================================
   BUTTONS
   ============================================================================= */

.codyn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border: var(--hairline-width) solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  cursor: pointer;
  transition:
    background-color var(--duration-micro-max, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1)),
    border-color var(--duration-micro-max, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1)),
    color var(--duration-micro-max, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-btn:active {
  box-shadow: inset 0 0 0 1px var(--ink);
}

.codyn-btn--accent {
  background: var(--aurora);
  color: var(--ink);
  border-color: var(--aurora);
}

.codyn-btn--accent:hover {
  filter: brightness(0.94);
}

.codyn-btn--primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.codyn-btn--primary:hover {
  filter: brightness(1.15);
}

@media (prefers-color-scheme: dark) {
  .codyn-btn--primary:hover {
    filter: brightness(0.9);
  }
}

.codyn-btn--secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--hairline-strong);
}

.codyn-btn--secondary:hover {
  background: var(--bg-muted);
}

/* =============================================================================
   CARDS
   ============================================================================= */

.codyn-card {
  padding: var(--card-padding);
  background: var(--bg-elevated);
  border: var(--hairline-width) solid var(--hairline);
  min-height: var(--service-card-min-height);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-card:hover {
  border-color: var(--aurora);
}

.codyn-card__body {
  flex: 1;
}

.codyn-card__title {
  margin: 0 0 1rem;
  font-size: var(--type-headline-md-size);
  line-height: var(--type-headline-md-lh);
  font-weight: var(--type-headline-md-weight);
}

.codyn-card__text {
  margin: 0;
  color: var(--text-secondary);
}

/* Service card — eyebrow + arrow (no Material icons) */
.codyn-service-card {
  padding: var(--card-padding);
  background: var(--bg-elevated);
  border: var(--hairline-width) solid var(--hairline);
  min-height: var(--service-card-min-height);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-service-card:hover {
  border-color: var(--aurora);
}

.codyn-service-card__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--type-eyebrow-size);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  color: var(--graphite);
  margin-block-end: 1.5rem;
  transition: color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-service-card__footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-block-start: 2rem;
}

.codyn-service-card__arrow {
  font-family: var(--font-mono);
  font-size: var(--type-headline-md-size);
  line-height: 1;
  transition: transform var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-service-card:hover .codyn-service-card__eyebrow {
  color: var(--aurora);
}

.codyn-service-card:hover .codyn-service-card__arrow {
  transform: translateX(4px);
}

/* =============================================================================
   STAT ROW
   ============================================================================= */

.codyn-stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gutter);
  padding-block-start: 3rem;
  border-top: var(--hairline-width) solid var(--hairline);
}

@media (min-width: 48rem) {
  .codyn-stat-row {
    grid-template-columns: repeat(4, 1fr);
  }
}

.codyn-stat__label {
  margin: 0 0 0.25rem;
}

.codyn-stat__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  color: var(--text);
}

.codyn-stat__value[data-count] {
  font-variant-numeric: tabular-nums;
}

/* =============================================================================
   PILLAR / LIST ROW
   ============================================================================= */

.codyn-pillar-list {
  border-top: var(--hairline-width) solid var(--hairline);
}

.codyn-pillar {
  display: grid;
  gap: var(--gutter);
  padding-block: 2rem;
}

@media (min-width: 48rem) {
  .codyn-pillar {
    grid-template-columns: 2fr 4fr 6fr;
    align-items: start;
  }
}

.codyn-pillar:last-child {
  border-bottom: var(--hairline-width) solid var(--hairline);
}

.codyn-pillar__index {
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  color: var(--text-secondary);
}

.codyn-pillar__title {
  margin: 0;
  font-size: var(--type-body-lg-size);
  line-height: var(--type-body-lg-lh);
}

.codyn-pillar__body {
  margin: 0;
  color: var(--text-secondary);
}

.codyn-list-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gutter);
  padding-block: 2rem;
  border-bottom: var(--hairline-width) solid var(--hairline);
}

.codyn-list-row__index {
  flex: 0 0 4rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.codyn-list-row__content {
  flex: 1;
  min-width: 12rem;
}

/* =============================================================================
   CHIP
   ============================================================================= */

.codyn-chip {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border: var(--hairline-width) solid var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--type-eyebrow-size);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* =============================================================================
   CTA BAND
   ============================================================================= */

.codyn-cta-band {
  padding: 3rem 1.5rem;
  background: var(--bg-inverse);
  color: var(--text-on-inverse);
  text-align: center;
}

@media (min-width: 48rem) {
  .codyn-cta-band {
    padding: 6rem 3rem;
  }
}

.codyn-cta-band__title {
  margin: 0 0 1.5rem;
  color: inherit;
}

.codyn-cta-band__text {
  margin: 0 auto 3rem;
  max-width: 42rem;
  color: color-mix(in srgb, currentColor 78%, transparent);
}

/* =============================================================================
   FORMS
   ============================================================================= */

.codyn-field {
  margin-block-end: 2rem;
}

.codyn-field__label {
  display: block;
  margin-block-end: 0.5rem;
}

.codyn-field__input {
  width: 100%;
  padding: 0.5rem 0;
  background: transparent;
  border: none;
  border-bottom: var(--hairline-width) solid var(--hairline);
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  color: var(--text);
}

.codyn-field__input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

.codyn-field__input:focus {
  outline: none;
  border-bottom-color: transparent;
  background-image: linear-gradient(var(--aurora), var(--aurora));
  background-size: 0% var(--hairline-width);
  background-repeat: no-repeat;
  background-position: left bottom;
  animation: codyn-field-focus 240ms var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1)) forwards;
}

@keyframes codyn-field-focus {
  to {
    background-size: 100% var(--hairline-width);
  }
}

@media (prefers-reduced-motion: reduce) {
  .codyn-field__input:focus {
    animation: none;
    border-bottom-color: var(--aurora);
    background-image: none;
  }
}

/* =============================================================================
   FAQ
   ============================================================================= */

.codyn-faq details.codyn-faq__item {
  border-bottom: var(--hairline-width) solid var(--hairline);
}

/* Panel visibility is animated via grid rows, not the open attribute */
.codyn-faq details.codyn-faq__item > .codyn-faq__answer-wrap {
  display: grid;
}

.codyn-faq__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding-block: 1.5rem;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: var(--type-body-lg-size);
  font-weight: 500;
  color: var(--text);
}

.codyn-faq__answer-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-accordion, 400ms) var(--ease-settle, cubic-bezier(0.16, 1, 0.3, 1));
}

.codyn-faq details.is-open .codyn-faq__answer-wrap {
  grid-template-rows: 1fr;
}

.codyn-faq__answer-inner {
  overflow: hidden;
  min-height: 0;
}

.codyn-faq__answer {
  padding-block-end: 1.5rem;
  color: var(--text-secondary);
}

@media (prefers-reduced-motion: reduce) {
  .codyn-faq__answer-wrap {
    grid-template-rows: 1fr;
    transition: none;
  }
}

/* =============================================================================
   METRIC TILE
   ============================================================================= */

.codyn-metric {
  padding: 2rem;
  border: var(--hairline-width) solid var(--hairline);
  background: var(--bg-elevated);
  min-height: 12rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-metric:not(.codyn-metric--inverse):hover {
  border-color: var(--aurora);
}

.codyn-metric--inverse {
  background: var(--bg-inverse);
  color: var(--text-on-inverse);
  border-color: var(--bg-inverse);
}

.codyn-metric--inverse:hover {
  border-color: color-mix(in srgb, var(--aurora) 55%, var(--bg-inverse));
}

.codyn-metric__value {
  font-size: var(--type-headline-lg-size);
  line-height: 1.1;
  font-weight: 300;
  letter-spacing: -0.02em;
}

/* =============================================================================
   BADGE
   ============================================================================= */

.codyn-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: var(--hairline-width) solid var(--hairline);
  background: var(--bg-muted);
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
}

.codyn-badge__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--error);
}

/* =============================================================================
   PERSON / PORTRAIT
   ============================================================================= */

.codyn-person__portrait {
  aspect-ratio: 1;
  background: var(--bg-muted);
  border: var(--hairline-width) solid var(--hairline);
  overflow: hidden;
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-person:hover .codyn-person__portrait {
  border-color: var(--aurora);
}

.codyn-person__portrait img,
.codyn-person__portrait svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.15);
}

.codyn-person__name {
  margin: 1rem 0 0.25rem;
  font-size: var(--type-body-lg-size);
  font-weight: 500;
}

.codyn-person__role {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
  color: var(--text-secondary);
}

/* =============================================================================
   TABLE (RUBRIC)
   ============================================================================= */

.codyn-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
}

.codyn-table th,
.codyn-table td {
  padding: 1rem 1rem 1rem 0;
  border-bottom: var(--hairline-width) solid var(--hairline);
  text-align: left;
  vertical-align: top;
}

.codyn-table th {
  color: var(--text-secondary);
  font-weight: 400;
}

/* =============================================================================
   STUDIO
   ============================================================================= */

/* Hidden until practitioners are onboarded — remove this rule to show the section */
.codyn-studio-practitioners {
  display: none;
}

/* =============================================================================
   INNER PAGES
   ============================================================================= */

.codyn-page-hero {
  padding-block: 5rem 2rem;
}

.codyn-page-hero--xl .codyn-page-hero__title {
  font-size: clamp(3rem, 12vw, 7.5rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
  font-weight: 300;
}

.codyn-page-hero__eyebrow {
  margin-block-end: 1rem;
}

.codyn-page-hero__title {
  margin: 0 0 1.5rem;
  max-width: 20ch;
}

.codyn-page-hero__lede {
  margin: 0;
  max-width: 42rem;
}

.codyn-page-hero__actions {
  margin-block-start: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.codyn-metric-row {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 48rem) {
  .codyn-metric-row {
    grid-template-columns: repeat(3, 1fr);
  }
}

.codyn-split {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 48rem) {
  .codyn-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  }

  .codyn-split__aside {
    position: sticky;
    top: 6rem;
    align-self: start;
  }
}

.codyn-split__heading {
  margin: 0 0 1rem;
}

.codyn-row-list {
  border-top: var(--hairline-width) solid var(--hairline);
}

.codyn-row-list__item {
  display: grid;
  gap: 1rem 1.5rem;
  padding-block: 2rem;
  border-bottom: var(--hairline-width) solid var(--hairline);
}

@media (min-width: 40rem) {
  .codyn-row-list__item {
    grid-template-columns: 4rem 1fr 2fr;
    align-items: start;
  }

  .codyn-row-list__item--wide {
    grid-template-columns: 6rem 1fr;
  }
}

.codyn-row-list__index {
  color: var(--graphite);
}

.codyn-row-list__title {
  margin: 0 0 0.5rem;
  font-size: var(--type-body-lg-size);
  font-weight: 500;
}

.codyn-row-list__body {
  margin: 0;
  color: var(--text-secondary);
}

.codyn-row-list__phase {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
}

.codyn-phase__title {
  margin: 0 0 0.5rem;
  font-size: var(--type-headline-md-size);
  font-weight: var(--type-headline-md-weight);
}

.codyn-principles {
  display: grid;
  border-top: var(--hairline-width) solid var(--hairline);
  border-bottom: var(--hairline-width) solid var(--hairline);
}

@media (min-width: 48rem) {
  .codyn-principles {
    grid-template-columns: repeat(3, 1fr);
  }

  .codyn-principles__item + .codyn-principles__item {
    border-left: var(--hairline-width) solid var(--hairline);
  }
}

.codyn-principles__item {
  padding: 3rem 2rem;
  transition: background-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-principles__item:hover {
  background: var(--bg-muted);
  box-shadow: inset 0 0 0 var(--hairline-width) var(--aurora);
}

@media (min-width: 64rem) {
  .codyn-principles__item {
    padding: 4rem;
  }
}

.codyn-bento {
  display: grid;
  gap: var(--hairline-width);
  background: var(--hairline);
  border: var(--hairline-width) solid var(--hairline);
}

@media (min-width: 48rem) {
  .codyn-bento {
    grid-template-columns: 1fr 1fr;
  }

  .codyn-bento__item--wide {
    grid-column: 1 / -1;
  }
}

.codyn-bento__item {
  padding: 2.5rem;
  background: var(--bg-elevated);
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-bento__item:hover {
  border-color: var(--aurora);
}

.codyn-stat-strip {
  display: grid;
  gap: 0;
  border: var(--hairline-width) solid var(--hairline);
  background: var(--hairline);
}

@media (min-width: 48rem) {
  .codyn-stat-strip {
    grid-template-columns: repeat(3, 1fr);
  }
}

.codyn-stat-strip__cell {
  padding: 2rem 2.5rem;
  background: var(--bg-elevated);
  border: var(--hairline-width) solid transparent;
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-stat-strip__cell:hover {
  border-color: var(--aurora);
}

.codyn-stat-strip__value {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1;
}

.codyn-editorial-cols {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 48rem) {
  .codyn-editorial-cols {
    grid-template-columns: repeat(3, 1fr);
  }

  .codyn-editorial-cols__col {
    padding-inline-end: 2rem;
    border-inline-end: var(--hairline-width) solid var(--hairline);
  }

  .codyn-editorial-cols__col:last-child {
    border-inline-end: none;
    padding-inline-end: 0;
  }
}

.codyn-form-panel {
  padding: 2rem;
  border: var(--hairline-width) solid var(--hairline);
  background: var(--bg-muted);
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-form-panel:hover {
  border-color: var(--aurora);
}

@media (min-width: 48rem) {
  .codyn-form-panel {
    padding: 3rem;
  }
}

.codyn-contact-hero {
  min-height: calc(100vh - var(--header-height) - 8rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: 6rem;
}

.codyn-contact-hero__lede {
  margin: 0 0 3rem;
  max-width: 32rem;
}

.codyn-contact-email {
  display: inline-block;
  font-size: clamp(2rem, 8vw, 5rem);
  line-height: 1.05;
  font-weight: 300;
  letter-spacing: -0.04em;
  color: var(--text);
  text-decoration: none;
  transition: color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-contact-email:hover {
  color: var(--aurora);
}

.codyn-faq details.codyn-faq__item summary {
  list-style: none;
  cursor: pointer;
}

.codyn-faq details.codyn-faq__item summary.codyn-faq__question {
  display: flex;
}

.codyn-faq details.codyn-faq__item summary::-webkit-details-marker {
  display: none;
}

.codyn-faq__chevron {
  flex-shrink: 0;
  transition: transform 200ms var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-faq details.is-open .codyn-faq__chevron {
  transform: rotate(180deg);
}

.codyn-person-grid {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 40rem) {
  .codyn-person-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .codyn-person-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.codyn-person__portrait--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--graphite);
  font-family: var(--font-mono);
  font-size: var(--type-eyebrow-size);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  text-align: center;
  padding: 1rem;
}

/* Full-frame portrait (no square crop) — studio principal */
.codyn-person__portrait--natural {
  aspect-ratio: auto;
  overflow: hidden;
}

.codyn-person__portrait--natural img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.codyn-band-muted {
  padding-block: var(--section-space-mobile);
  background: var(--bg-muted);
  border-block: var(--hairline-width) solid var(--hairline);
}

.codyn-artifact-row {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 48rem) {
  .codyn-artifact-row {
    grid-template-columns: repeat(3, 1fr);
  }
}

.codyn-artifact {
  padding: 2rem;
  border: var(--hairline-width) solid var(--hairline);
  background: var(--bg-elevated);
  text-align: center;
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-artifact:hover {
  border-color: var(--aurora);
}

.codyn-artifact__label {
  margin: 0.75rem 0 0;
  font-weight: 500;
}

.codyn-artifact__meta {
  margin: 0.25rem 0 0;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: var(--type-technical-size);
}

.codyn-404 {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: 6rem;
}

/* =============================================================================
   HOMEPAGE
   ============================================================================= */

.type-headline-lg--light {
  font-weight: 300;
}

.codyn-hero {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-block: 6rem 2rem;
}

.codyn-hero__meta {
  text-align: end;
  margin-block-end: 3rem;
}

.codyn-hero__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 64rem;
}

.codyn-hero__title {
  margin: 0 0 2rem;
}

.codyn-hero__line1,
.codyn-hero__line2 {
  display: block;
}

.codyn-hero__char {
  opacity: 0;
}

.codyn-hero__line2 {
  opacity: 0;
  transform: translateY(12px);
}

.codyn-hero__we {
  color: var(--aurora);
}

.codyn-hero__support {
  max-width: 42rem;
  margin: 0;
  opacity: 0;
}

.codyn-hero__support.is-visible,
.codyn-stat-row.is-visible {
  opacity: 1;
}

@media (prefers-reduced-motion: no-preference) {
  .codyn-hero--ready .codyn-hero__char {
    opacity: 1;
  }

  .codyn-hero--ready .codyn-hero__line2 {
    opacity: 1;
    transform: translateY(0);
  }
}

.codyn-hero__after {
  opacity: 0;
}

.codyn-hero--ready .codyn-hero__after,
.codyn-hero--ready .codyn-hero__support {
  opacity: 1;
}

/* Standalone signature — bigger than hero display */
.codyn-signature {
  padding-block: clamp(4rem, 14vh, 9rem);
}

.codyn-signature__phrase {
  margin: 0;
  font-size: var(--type-signature-size);
  line-height: var(--type-signature-lh);
  font-weight: var(--type-signature-weight);
  letter-spacing: var(--type-signature-tracking);
  max-width: 14ch;
}

.codyn-signature__we {
  color: var(--aurora);
}

.codyn-conviction__title {
  margin: 0 auto 6rem;
  max-width: 56rem;
  text-align: center;
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity var(--duration-heading, 500ms) var(--ease-settle, cubic-bezier(0.16, 1, 0.3, 1)),
    transform var(--duration-heading, 500ms) var(--ease-settle, cubic-bezier(0.16, 1, 0.3, 1));
}

.codyn-conviction.is-revealed .codyn-conviction__title {
  opacity: 1;
  transform: translateY(0);
}

.codyn-pillar__index {
  color: var(--aurora);
}

.codyn-pillar__hairline {
  grid-column: 1 / -1;
  height: 0;
  border: none;
  border-top: var(--hairline-width) solid var(--hairline);
  margin: 0;
  padding: 0;
  clip-path: inset(0 100% 0 0);
}

.codyn-pillar.is-drawn .codyn-pillar__hairline {
  clip-path: inset(0 0 0 0);
}

.codyn-pillar__content {
  opacity: 0;
}

.codyn-pillar.is-drawn .codyn-pillar__content {
  opacity: 1;
}

.codyn-practices__grid {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 48rem) {
  .codyn-practices__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.codyn-case__grid {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 48rem) {
  .codyn-case__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.codyn-case-card {
  position: relative;
  padding: var(--card-padding);
  border: var(--hairline-width) solid var(--hairline);
  background: var(--bg-elevated);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--duration-service-hover, 200ms) var(--ease-precise, cubic-bezier(0.65, 0, 0.35, 1));
}

.codyn-case-card:not(.codyn-case-card--placeholder):hover {
  border-color: var(--aurora);
}

.codyn-case-card__eyebrow {
  margin-block-end: 1rem;
}

.codyn-case-card__title {
  margin: 0 0 1rem;
  font-size: var(--type-headline-md-size);
  font-weight: var(--type-headline-md-weight);
}

.codyn-case-card__text {
  margin: 0;
  color: var(--text-secondary);
}

.codyn-case-card--placeholder {
  border-style: dashed;
  opacity: 0.85;
}

.codyn-conviction__cols {
  display: grid;
  gap: var(--gutter);
  max-width: 56rem;
  margin-inline: auto;
}

@media (min-width: 48rem) {
  .codyn-conviction__cols {
    grid-template-columns: 1fr 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .codyn-hero__char,
  .codyn-hero__line2,
  .codyn-hero__support,
  .codyn-hero__after,
  .codyn-stat-row,
  .codyn-conviction__title,
  .codyn-pillar__content {
    opacity: 1 !important;
    transform: none !important;
  }

  .codyn-pillar__hairline {
    clip-path: none;
  }

  .codyn-conviction.is-revealed .codyn-conviction__title,
  .codyn-conviction__title {
    opacity: 1;
    transform: none;
  }
}

.codyn-stat__suffix {
  font-family: var(--font-mono);
}

/* =============================================================================
   STYLEGUIDE-ONLY HELPERS
   ============================================================================= */

.sg-swatch {
  aspect-ratio: 2 / 1;
  border: var(--hairline-width) solid var(--hairline);
}

.sg-swatch__label {
  margin-block-start: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--type-eyebrow-size);
}

.sg-panel {
  margin-block-end: var(--section-space-mobile);
}

@media (min-width: 48rem) {
  .sg-panel {
    margin-block-end: 4rem;
  }
}

.sg-panel__title {
  margin: 0 0 2rem;
  padding-block-end: 1rem;
  border-bottom: var(--hairline-width) solid var(--hairline);
}

.sg-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.sg-grid-colors {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
  gap: 1.5rem;
}