/*
  Design Tokens
  These CSS variables define the design language primitives.
  Extend tokens here and consume them throughout components/utilities.
*/
:root {
  /* Palette */
  --color-bg: #f8f5f0;
  --color-ink: #101010;
  --color-muted: #4b4946;
  --color-accent: #ff6126;
  --color-accent-dark: #c23f11;
  --color-border: #1a1a18;

  /* Surfaces */
  --surface-base: var(--color-bg);
  --surface-subtle: #fdfbf7;
  --surface-raised: #ffffff;
  --surface-contrast: var(--color-ink);
  --on-contrast: #fdfbf7;

  /* Typography */
  --font-sans: "Barlow", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Roboto Mono", "Courier New", monospace;
  --fs-xs: clamp(0.78rem, 0.18vw + 0.72rem, 0.85rem);
  --fs-sm: clamp(0.9rem, 0.22vw + 0.82rem, 0.98rem);
  --fs-md: clamp(1rem, 0.3vw + 0.92rem, 1.12rem);
  --fs-lg: clamp(1.2rem, 0.5vw + 1rem, 1.4rem);
  --fs-xl: clamp(1.6rem, 1vw + 1.2rem, 2rem);
  --fs-2xl: clamp(2.1rem, 2vw + 1.5rem, 3rem);
  --lh-tight: 1.15;
  --lh-snug: 1.3;
  --lh-normal: 1.55;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 2rem;
  --space-8: 2.5rem;
  --space-9: 3rem;

  /* Radius, borders */
  --radius-1: 2px;
  --radius-2: 4px;
  --radius-3: 8px;
  --border-1: 1px;
  --border-2: 2px;
  --border-3: 3px;

  /* Elevation */
  --shadow-base: 6px 6px 0 var(--color-accent);
  --shadow-ink: 12px 12px 0 var(--color-ink);
  --shadow-ink-sm: 8px 8px 0 var(--color-ink);

  /* Motion */
  --motion-fast: 150ms;
  --motion-base: 220ms;
  --motion-slow: 360ms;
  --easing-standard: ease;
  --easing-emphasized: cubic-bezier(0.33, 1, 0.8, 1);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  background: var(--surface-base);
  color: var(--color-ink);
  font-family: var(--font-sans);
  letter-spacing: 0.01em;
}

.dossier {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: clamp(2rem, 4vw, 4rem);
  padding-bottom: clamp(0.5rem, 2vw, 1.2rem);
  gap: clamp(2.5rem, 0vw, 4rem);
}

.masthead {
  border: var(--border-3) solid var(--color-border);
  padding: clamp(1.8rem, 3vw, 2.8rem);
  background: var(--surface-subtle);
  display: grid;
  gap: 2rem;
  box-shadow: var(--shadow-ink);
  white-space: normal;
  position: relative;
  overflow: visible;
}

/* Reserve space for the floating brand so content doesn't collide */
.masthead--logo-float {
  --brand-size: clamp(120px, 14vw, 220px);
  --brand-gutter: clamp(12px, 1.2vw, 18px);
  --brand-shadow-offset: clamp(6px, calc(var(--brand-size) * 0.08), 12px);
  /* Reserve full width of the panel plus a small gutter */
  padding-right: calc(var(--brand-size) + var(--brand-gutter));
}

.masthead__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  border: var(--border-1) solid var(--color-border);
  padding: 0.35rem 0.75rem;
  background: var(--color-ink);
  color: var(--color-bg);
}

.masthead__grid {
  display: grid;
  grid-template-columns: minmax(280px, 2fr) minmax(200px, 1fr);
  gap: clamp(1.8rem, 3vw, 3rem);
  align-items: start;
}

/* Allow grid children to shrink inside the masthead without forcing overflow */
.masthead__grid > * { min-width: 0; }

/* Floating brand panel (outside top-right corner) */
.masthead--logo-float .masthead__brand {
  position: absolute;
  top: calc(var(--brand-gutter) * -0.4);
  right: calc(var(--brand-gutter) * -1);
  display: grid;
  place-items: center;
  padding: clamp(0.5rem, 1vw, 0.75rem);
  background: var(--surface-subtle);
  border: var(--border-3) solid var(--color-border);
  /* No drop shadow for a cleaner, flat panel */
  box-shadow: none;
  width: var(--brand-size);
  z-index: 1;
}
.masthead--logo-float .masthead__brand img {
  display: block;
  width: 100%;
  height: auto;
}

/* Responsive tuning to avoid crowding at mid widths */
@media (max-width: 1024px) {
  .masthead--logo-float { --brand-size: clamp(110px, 12vw, 180px); --brand-gutter: clamp(10px, 1vw, 16px); --brand-shadow-offset: clamp(6px, calc(var(--brand-size) * 0.08), 12px); }
}
@media (max-width: 880px) {
  .masthead--logo-float { --brand-size: clamp(96px, 11vw, 160px); --brand-gutter: clamp(8px, 0.9vw, 14px); --brand-shadow-offset: clamp(5px, calc(var(--brand-size) * 0.08), 10px); }
}

/* Alternative placements (toggle class on .masthead) */
.masthead--logo-edge .masthead__brand {
  position: absolute;
  top: 50%;
  right: clamp(-0.6rem, -1.2vw, -0.4rem);
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  padding: clamp(0.5rem, 1vw, 0.75rem);
  background: var(--surface-subtle);
  border: var(--border-3) solid var(--color-border);
  box-shadow: none;
  width: clamp(140px, 16vw, 240px);
  z-index: 1;
}
.masthead--logo-edge .masthead__brand img { width: 100%; height: auto; }

.masthead--logo-bottom .masthead__brand {
  position: absolute;
  bottom: clamp(-0.6rem, -1.2vw, -0.4rem);
  right: clamp(-0.6rem, -1.2vw, -0.4rem);
  display: grid;
  place-items: center;
  padding: clamp(0.5rem, 1vw, 0.75rem);
  background: var(--surface-subtle);
  border: var(--border-3) solid var(--color-border);
  box-shadow: none;
  width: clamp(140px, 16vw, 240px);
  z-index: 1;
}
.masthead--logo-bottom .masthead__brand img { width: 100%; height: auto; }

.masthead__title h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  /* Restore tighter heading to avoid extra vertical overflow */
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.masthead__title p {
  margin: 0;
  font-size: 1.05rem;
  max-width: 34rem;
  color: var(--color-muted);
}

.masthead__meta {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 1.2rem;
  row-gap: 0.6rem;
  font-size: var(--fs-sm);
}

.meta__label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--fs-xs);
  color: var(--color-accent-dark);
  margin: 0;
}

.masthead__meta p {
  margin: 0;
}

/* Prevent long emails/URLs from bleeding outside the container */
.masthead__meta a {
  overflow-wrap: anywhere; /* modern, safe */
  word-break: break-word;  /* legacy fallback */
}

.content {
  display: grid;
  gap: clamp(2rem, 3vw, 3rem);
}

.section {
  display: grid;
  grid-template-columns: minmax(70px, 1fr) minmax(280px, 6fr);
  border-top: var(--border-2) solid var(--color-border);
  padding-top: clamp(1.6rem, 3vw, 2.4rem);
  gap: clamp(1.2rem, 2vw, 2rem);
  position: relative;
  overflow: visible;
}

.section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 97, 38, 0.9) 0%, rgba(255, 158, 109, 0.75) 100%);
  transform-origin: left;
  transform: scaleX(0);
}

.section:first-of-type {
  border-top: none;
}

.section__index {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 1.2vw + 0.9rem, 1.6rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  align-self: start;
  word-break: break-word;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  transition: color 240ms ease;
}

.section__index::after {
  content: "";
  display: inline-block;
  width: 32px;
  height: 2px;
  background: rgba(255, 97, 38, 0.8);
  transform-origin: left;
  transform: scaleX(0);
}

.section:hover,
.section:focus-within {
  border-top-color: transparent;
}

.section:hover::before,
.section:focus-within::before {
  animation: section-border-glide 720ms ease forwards;
}

.section:hover .section__index,
.section:focus-within .section__index {
  color: var(--color-accent-dark);
}

.section:hover .section__index::after,
.section:focus-within .section__index::after {
  animation: section-index-underline 360ms ease forwards;
}

.section__body h2 {
  margin: 0 0 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--fs-sm);
}

/* Increase spacing for headings within stacked styleguide sections
   Ensures headings like "Typography" have more breathing room above/below
   without affecting non-stacked sections elsewhere. */
.section__body.stack > * + h2 { /* extra space before a heading */
  margin-top: var(--space-6);
}
.section__body.stack > h2 + * { /* extra space after a heading */
  margin-top: var(--space-5);
}

.section__body p {
  margin: 0 0 1.2rem;
  max-width: 42rem;
  color: var(--color-ink);
}

.section__body--services p {
  color: var(--color-muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: clamp(1.4rem, 3vw, 2.2rem);
}

.service-grid article {
  border: var(--border-2) solid var(--color-border);
  padding: 1.4rem 1.6rem;
  background: var(--surface-raised);
  display: grid;
  gap: 0.75rem;
  box-shadow: var(--shadow-base);
  transform: scale(1);
  transform-origin: center;
  backface-visibility: hidden;
  transition: transform var(--motion-fast) var(--easing-emphasized), box-shadow var(--motion-base) var(--easing-standard), border-color var(--motion-base) var(--easing-standard);
  will-change: transform;
}

.service-grid p {
  margin: 0;
  color: var(--color-muted);
}

.service-grid ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--color-ink);
  font-size: 0.95rem;
}

.service-grid article:hover,
.service-grid article:focus-within {
  transform: scale(1.03);
  box-shadow: 12px 12px 0 rgba(255, 97, 38, 0.45);
  border-color: rgba(255, 97, 38, 0.55);
}

.section__body--process .process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: clamp(1.2rem, 3vw, 2.2rem);
}

.process article {
  border-left: 4px solid var(--color-accent);
  padding-left: 1.1rem;
  display: grid;
  gap: 0.6rem;
}

.process header {
  font-size: 1.1rem;
  font-weight: 600;
}

.process p {
  margin: 0;
  color: var(--color-muted);
}

.section--split .notes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.notes__column h3 {
  margin: 0 0 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--color-accent-dark);
}

.notes__column p {
  margin-bottom: 1rem;
  color: var(--color-muted);
}

.notes__column ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--color-ink);
}

.section--cta {
  align-items: center;
}

.section--cta .section__body {
  background: var(--surface-contrast);
  color: var(--on-contrast);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  border: var(--border-2) solid var(--color-border);
  box-shadow: var(--shadow-base);
}

.section--cta .section__body h2 {
  color: var(--on-contrast);
}

.section--cta .section__body p {
  color: color-mix(in oklab, var(--on-contrast), transparent 18%);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.4rem;
}

.cta-actions a {
  text-transform: uppercase;
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
  font-size: var(--fs-xs);
  padding: 0.9rem 1.6rem;
  border: var(--border-2) solid currentColor;
  text-decoration: none;
}

.cta-actions__primary {
  background: var(--on-contrast);
  color: var(--surface-contrast);
}

.cta-actions__primary:hover,
.cta-actions__primary:focus {
  color: var(--color-accent-dark);
  outline: none;
}

.cta-actions__secondary {
  color: var(--on-contrast);
}

.cta-actions__secondary:hover,
.cta-actions__secondary:focus {
  color: var(--color-accent);
  outline: none;
}

.section a {
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.section a:hover,
.section a:focus {
  color: var(--color-accent-dark);
  outline: none;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  border-top: var(--border-2) solid var(--color-border);
  padding-top: 1.2rem;
  justify-content: space-between;
  font-size: var(--fs-sm);
  /* Let columns size to their own content height (no equal-height stretch) */
  align-items: flex-start;
}

.footer__left,
.footer__right {
  /* Shrink-wrap width and height to content by default */
  flex: 0 0 auto;
  align-self: flex-start;
}

@media (max-width: 720px) {
  .dossier {
    padding: 1.8rem;
    gap: 2rem;
  }

  .masthead {
    box-shadow: var(--shadow-ink-sm);
  }

  .masthead__grid {
    grid-template-columns: 1fr;
  }

  /* Hide the brand column on small screens to keep the layout clean */
  .masthead__brand { display: none; }

  .masthead__meta {
    grid-template-columns: auto 1fr;
  }

  .section {
    grid-template-columns: 1fr;
    row-gap: 0.6rem;
  }

  .section__index {
    font-size: 1rem;
    letter-spacing: 0.14em;
    justify-self: start;
    margin-bottom: 0.2rem;
  }

  .service-grid article {
    box-shadow: 4px 4px 0 var(--color-accent);
  }

  .section--cta .section__body {
    box-shadow: 6px 6px 0 var(--color-accent);
  }

  .footer {
    flex-direction: column;
    /* On mobile, keep children stretched to full width */
    align-items: stretch;
  }
  .footer__left,
  .footer__right {
    flex: 1 1 auto;
    align-self: stretch;
    width: 100%;
  }
}

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

@keyframes section-border-glide {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes section-index-underline {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

/*
  Utilities
  Small, composable classes for common layout and text patterns.
*/
.container {
  width: min(100%, 72rem);
  margin-inline: auto;
}

.stack > * + * {
  margin-top: var(--stack-space, 1rem);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--cluster-gap, 1rem);
}

.text-muted { color: var(--color-muted) !important; }

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--fs-xs);
  color: var(--color-accent-dark);
}

.lead {
  font-size: clamp(1.05rem, 0.3vw + 1rem, 1.2rem);
  line-height: var(--lh-snug);
  color: var(--color-muted);
}

.btn {
  display: inline-block;
  text-decoration: none;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--fs-xs);
  padding: 0.85rem 1.4rem;
  border: var(--border-2) solid currentColor;
  transition: color var(--motion-base) var(--easing-standard);
}

.btn--solid { background: var(--surface-subtle); color: var(--color-ink); }
.btn--solid:hover, .btn--solid:focus { color: var(--color-accent-dark); outline: none; }

.btn--ghost { background: transparent; color: #fdfbf7; }
.btn--ghost:hover, .btn--ghost:focus { color: var(--color-accent); outline: none; }

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  border: var(--border-1) solid var(--color-border);
  padding: 0.35rem 0.75rem;
  background: var(--color-ink);
  color: var(--color-bg);
}

.card {
  border: var(--border-2) solid var(--color-border);
  background: var(--surface-raised);
  padding: 1.2rem 1.4rem;
  box-shadow: var(--shadow-base);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(var(--grid-min, 230px), 1fr));
  gap: var(--grid-gap, 1.2rem);
}

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

/* Optional dark theme hook */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #11110f;
    --color-ink: #f4f1eb;
    --color-muted: #b7b3ad;
    --color-border: #e6e0d8;
    --surface-base: #161613;
    --surface-subtle: #1b1b17;
    --surface-raised: #22221d;
    --surface-contrast: #0f0f0d;
    --on-contrast: #f4f1eb;
  }
}