/* =================================================================
   IAC Enterprises — Core Stylesheet
   Mobile-first base styles + design tokens. Breakpoint overrides
   live in responsive.css.
   ================================================================= */

@import url('fonts.css');

/* -----------------------------------------------------------------
   1. Design tokens
   ----------------------------------------------------------------- */
:root {
  /* Color — ink/signal system */
  --ink: #0a0d12;
  --ink-raised: #10141c;
  --ink-raised-2: #161b26;
  --hairline: #232935;
  --hairline-soft: #1a1f2a;
  --paper: #edeff3;
  --muted: #97a1b3;
  --muted-2: #6b7385;
  --signal: #c9903f;
  --signal-strong: #b87f34;
  --signal-bright: #e3a75a;
  --steel: #6c93a6;
  --error: #d9634a;
  --success: #6fae8c;

  /* Typography */
  --font-display: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Menlo, Consolas, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.375rem;
  --text-xl: 1.75rem;
  --text-2xl: 2.25rem;
  --text-3xl: 2.75rem;
  --text-4xl: 3.5rem;

  --leading-tight: 1.12;
  --leading-snug: 1.35;
  --leading-normal: 1.6;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Layout */
  --container-w: 1240px;
  --container-pad: 1.25rem;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur-fast: 150ms;
  --dur-base: 240ms;
  --dur-slow: 520ms;

  /* Z-index */
  --z-header: 100;
  --z-drawer: 200;
  --z-skip: 999;
}

/* -----------------------------------------------------------------
   2. Reset
   ----------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

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

body {
  min-height: 100svh;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

img {
  height: auto;
}

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

button {
  background: none;
  border: none;
  cursor: pointer;
}

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

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

table {
  border-collapse: collapse;
}

/* -----------------------------------------------------------------
   3. Typography
   ----------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
  color: var(--paper);
}

h1 { font-size: var(--text-3xl); font-weight: 700; }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-lg); }
h4 { font-size: var(--text-md); font-family: var(--font-body); font-weight: 600; }

p {
  color: var(--muted);
}

p + p {
  margin-top: var(--space-4);
}

strong {
  color: var(--paper);
  font-weight: 600;
}

.lede {
  font-size: var(--text-md);
  line-height: var(--leading-snug);
  color: var(--muted);
  max-width: 62ch;
}

.text-body {
  max-width: 68ch;
  color: var(--muted);
}

/* Eyebrow label — mono, letter-spaced, node-marker prefix.
   This is the recurring "schematic" signature used to open every section. */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-bright);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(201, 144, 63, 0.18);
  flex-shrink: 0;
}

/* -----------------------------------------------------------------
   4. Layout primitives
   ----------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--space-9);
}

.section-head {
  max-width: 46rem;
  margin-bottom: var(--space-8);
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.section-foot {
  margin-top: var(--space-7);
}

.hairline {
  border: none;
  border-top: 1px solid var(--hairline);
}

.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;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: var(--space-5);
  z-index: var(--z-skip);
  background: var(--signal);
  color: var(--ink);
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  transition: top var(--dur-base) var(--ease);
}

.skip-link:focus {
  top: var(--space-3);
}

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--signal-bright);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* -----------------------------------------------------------------
   5. Buttons
   ----------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 3rem;
  padding-inline: var(--space-6);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

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

.btn-primary:hover {
  background: var(--signal-bright);
  border-color: var(--signal-bright);
}

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

.btn-secondary:hover {
  border-color: var(--signal);
  color: var(--signal-bright);
}

.btn-ghost {
  height: auto;
  padding: 0;
  color: var(--signal-bright);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  border-radius: 0;
  gap: var(--space-1);
}

.btn-ghost:hover {
  border-bottom-color: var(--signal-bright);
}

.btn-block {
  width: 100%;
}

.btn-arrow {
  display: inline-block;
  transition: transform var(--dur-fast) var(--ease);
}

.btn:hover .btn-arrow,
a:hover .btn-arrow {
  transform: translateX(3px);
}

/* -----------------------------------------------------------------
   6. Header & primary nav
   ----------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(10, 13, 18, 0.86);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--hairline-soft);
  transition: border-color var(--dur-base) var(--ease), background var(--dur-base) var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--hairline);
  background: rgba(10, 13, 18, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-md);
  color: var(--paper);
  letter-spacing: -0.01em;
}

.brand svg,
.brand-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  object-fit: contain;
}

.brand-full {
  display: inline;
}

.primary-nav {
  display: none;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--text-sm);
  font-weight: 500;
}

.nav-list a {
  position: relative;
  color: var(--muted);
  padding-block: var(--space-2);
  transition: color var(--dur-fast) var(--ease);
}

.nav-list a:hover {
  color: var(--paper);
}

.nav-list a[aria-current="page"] {
  color: var(--paper);
}

.nav-list a[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--signal);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header-cta {
  display: none;
}

/* Hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--paper);
  transition: transform var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.mobile-nav {
  position: fixed;
  inset: 0;
  top: 4.5rem;
  z-index: var(--z-drawer);
  background: var(--ink);
  padding: var(--space-6) var(--container-pad) var(--space-8);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease),
    visibility 0s linear var(--dur-base);
  overflow-y: auto;
}

.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
}

.mobile-nav-list a {
  display: block;
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--hairline-soft);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--paper);
}

.mobile-nav-list a[aria-current="page"] {
  color: var(--signal-bright);
}

.mobile-nav-cta {
  margin-top: var(--space-6);
}

body.nav-open {
  overflow: hidden;
}

/* -----------------------------------------------------------------
   7. Footer
   ----------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--hairline-soft);
  padding-block: var(--space-8) var(--space-6);
  background: var(--ink-raised);
}

.footer-grid {
  display: grid;
  gap: var(--space-7);
}

.footer-brand p {
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal-bright);
}

.footer-brand .brand {
  color: var(--paper);
}

.footer-col h4 {
  color: var(--paper);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-weight: 500;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  color: var(--muted);
  font-size: var(--text-sm);
  transition: color var(--dur-fast) var(--ease);
}

.footer-col a:hover {
  color: var(--signal-bright);
}

.footer-location p {
  color: var(--muted);
  font-size: var(--text-sm);
}

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--hairline-soft);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--muted-2);
}

.footer-legal {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.footer-legal a {
  color: var(--muted-2);
}

.footer-legal a:hover {
  color: var(--muted);
}

/* -----------------------------------------------------------------
   8. Cards
   ----------------------------------------------------------------- */
.card {
  position: relative;
  background: var(--ink-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--dur-base) var(--ease), transform var(--dur-base) var(--ease),
    background var(--dur-base) var(--ease);
}

.card::before,
.card::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease);
  pointer-events: none;
}

.card::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
  border-top-left-radius: var(--radius-lg);
}

.card::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
  border-bottom-right-radius: var(--radius-lg);
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--hairline);
  background: var(--ink-raised-2);
}

.card:hover::before,
.card:hover::after {
  border-color: var(--signal);
}

.card-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  color: var(--signal-bright);
  margin-bottom: var(--space-5);
}

.card-icon svg {
  width: 20px;
  height: 20px;
}

.card h3 {
  margin-bottom: var(--space-3);
}

.card p {
  font-size: var(--text-sm);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--signal-bright);
}

/* Grids */
.grid {
  display: grid;
  gap: var(--space-5);
}

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

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

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

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

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

/* -----------------------------------------------------------------
   9. Hero
   ----------------------------------------------------------------- */
.hero {
  padding-block: var(--space-9) var(--space-8);
  position: relative;
}

.hero-inner {
  max-width: 42rem;
}

.hero h1 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-5);
}

.hero .lede {
  margin-bottom: var(--space-7);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-9);
}

.hero-visual {
  display: none;
}

/* Signal-path — the site's signature schematic motif.
   A route line with connector nodes, echoing the hero eyebrow items. */
.signal-path {
  width: 100%;
  height: auto;
  overflow: visible;
}

.signal-path .path-line {
  fill: none;
  stroke: var(--hairline);
  stroke-width: 1.5;
}

.signal-path .path-line-draw {
  fill: none;
  stroke: var(--signal);
  stroke-width: 1.5;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}

.signal-path.in-view .path-line-draw {
  animation: draw-path 1.6s var(--ease) forwards;
  animation-delay: 0.2s;
}

.signal-path .node {
  fill: var(--ink);
  stroke: var(--hairline);
  stroke-width: 1.5;
}

.signal-path .node-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  fill: var(--muted);
  text-transform: uppercase;
}

.signal-path.in-view .node {
  animation: node-pop 0.5s var(--ease) forwards;
  opacity: 0;
  transform-origin: center;
}

@keyframes draw-path {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes node-pop {
  to {
    opacity: 1;
  }
}

/* Page hero (inner pages) */
.page-hero {
  padding-block: var(--space-8) var(--space-7);
  border-bottom: 1px solid var(--hairline-soft);
}

.page-hero-inner {
  max-width: 46rem;
}

.page-hero h1 {
  margin-bottom: var(--space-5);
}

/* -----------------------------------------------------------------
   10. Positioning / trust section
   ----------------------------------------------------------------- */
.positioning {
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}

.positioning-grid {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

.positioning-grid h2 {
  max-width: 20ch;
}

/* -----------------------------------------------------------------
   11. Process timeline
   ----------------------------------------------------------------- */
.process-list {
  display: grid;
  gap: var(--space-6);
  counter-reset: step;
}

.process-step {
  position: relative;
  padding-left: var(--space-7);
  border-left: 1px solid var(--hairline);
  padding-bottom: var(--space-6);
}

.process-step:last-child {
  border-color: transparent;
  padding-bottom: 0;
}

.process-step::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 2px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--ink);
}

.process-index {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--signal-bright);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.process-step h3 {
  margin-bottom: var(--space-2);
}

.process-step p {
  font-size: var(--text-sm);
  max-width: 42ch;
}

/* -----------------------------------------------------------------
   12. Final CTA band
   ----------------------------------------------------------------- */
.cta-band {
  border-top: 1px solid var(--hairline-soft);
  text-align: center;
}

.cta-band-inner {
  max-width: 38rem;
  margin-inline: auto;
}

.cta-band h2 {
  margin-bottom: var(--space-4);
}

.cta-band p {
  margin-bottom: var(--space-7);
}

.cta-band .btn {
  margin-inline: auto;
}

/* -----------------------------------------------------------------
   13. Industries
   ----------------------------------------------------------------- */
.industry-card h3 {
  font-size: var(--text-base);
}

.industry-note {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--hairline-soft);
}

/* -----------------------------------------------------------------
   14. About page
   ----------------------------------------------------------------- */
.vm-grid {
  display: grid;
  gap: var(--space-5);
}

.vm-card {
  background: var(--ink-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.vm-card .eyebrow {
  margin-bottom: var(--space-3);
}

.approach-list {
  display: grid;
  gap: var(--space-5);
}

.approach-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--hairline-soft);
}

.approach-item:last-child {
  border-bottom: none;
}

.approach-num {
  font-family: var(--font-mono);
  color: var(--signal);
  font-size: var(--text-sm);
}

/* -----------------------------------------------------------------
   15. Services page
   ----------------------------------------------------------------- */
.category-nav {
  position: sticky;
  top: 4.5rem;
  z-index: 10;
  background: var(--ink);
  border-bottom: 1px solid var(--hairline-soft);
  overflow-x: auto;
  scrollbar-width: none;
}

.category-nav::-webkit-scrollbar {
  display: none;
}

.category-nav-list {
  display: flex;
  gap: var(--space-2);
  padding-block: var(--space-4);
  min-width: max-content;
}

.category-nav-list a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--muted);
  transition: all var(--dur-fast) var(--ease);
}

.category-nav-list a:hover,
.category-nav-list a.is-active {
  color: var(--ink);
  background: var(--signal);
  border-color: var(--signal);
}

.service-category {
  padding-block: var(--space-9);
  border-bottom: 1px solid var(--hairline-soft);
  scroll-margin-top: 9rem;
}

.service-category:last-of-type {
  border-bottom: none;
}

.category-head {
  margin-bottom: var(--space-7);
  max-width: 46rem;
}

.service-detail {
  padding: var(--space-6);
  background: var(--ink-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
}

.service-detail h3 {
  margin-bottom: var(--space-3);
}

.service-detail > p {
  font-size: var(--text-sm);
  margin-bottom: var(--space-5);
}

.service-detail-block {
  margin-top: var(--space-5);
}

.service-detail-block h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: var(--space-3);
  font-weight: 500;
}

.service-detail-block ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-detail-block li {
  position: relative;
  padding-left: var(--space-4);
  font-size: var(--text-sm);
  color: var(--muted);
}

.service-detail-block li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  background: var(--signal);
  border-radius: 50%;
}

.service-detail .card-link {
  margin-top: var(--space-6);
}

/* -----------------------------------------------------------------
   16. Contact page
   ----------------------------------------------------------------- */
.contact-layout {
  display: grid;
  gap: var(--space-8);
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.info-block h3 {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--muted);
  margin-bottom: var(--space-3);
}

.info-block p,
.info-block a {
  color: var(--paper);
  font-size: var(--text-md);
}

.info-block a:hover {
  color: var(--signal-bright);
}

.info-block .config-note {
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--muted-2);
}

.form-card {
  background: var(--ink-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.form-row {
  margin-bottom: var(--space-5);
}

.form-row-split {
  display: grid;
  gap: var(--space-5);
}

.form-row label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--paper);
  margin-bottom: var(--space-2);
}

.form-row .required {
  color: var(--signal-bright);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  color: var(--paper);
  font-size: var(--text-sm);
  transition: border-color var(--dur-fast) var(--ease);
}

.form-row input::placeholder,
.form-row textarea::placeholder {
  color: var(--muted-2);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--signal);
}

.form-row textarea {
  min-height: 9rem;
  resize: vertical;
}

.form-row select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2397A1B3' stroke-width='1.5' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-7);
}

.form-error {
  display: none;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--error);
}

.form-row.has-error input,
.form-row.has-error select,
.form-row.has-error textarea {
  border-color: var(--error);
}

.form-row.has-error .form-error {
  display: block;
}

.form-note {
  margin-top: var(--space-4);
  font-size: var(--text-xs);
  color: var(--muted-2);
}

.form-status {
  margin-top: var(--space-5);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-success {
  background: rgba(111, 174, 140, 0.12);
  border: 1px solid rgba(111, 174, 140, 0.4);
  color: var(--success);
}

.form-status.is-error {
  background: rgba(217, 99, 74, 0.12);
  border: 1px solid rgba(217, 99, 74, 0.4);
  color: var(--error);
}

/* -----------------------------------------------------------------
   17. Scroll-reveal utility
   ----------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .signal-path .path-line-draw,
  .signal-path .node {
    animation: none !important;
    opacity: 1 !important;
    stroke-dashoffset: 0 !important;
  }
}

/* -----------------------------------------------------------------
   18. 404 / misc
   ----------------------------------------------------------------- */
.not-found {
  padding-block: var(--space-10);
  text-align: center;
}