/* ==========================================================================
   CLADA Consulting Oy - www.clada.works
   Native CSS, no framework. Dark-only by owner decision (monochrome charcoal
   brand, white line-art logo).

   Shape rule: surfaces, tiles and panels are sharp (radius 0). Interactive
   controls (buttons, inputs) use --radius-control (2px). Nothing else.
   Z-index scale: --z-header only (sticky header). Nothing else is layered.
   ========================================================================== */

/* Fonts: self-hosted variable builds from Fontsource 5.3.0 (SIL OFL). */
@font-face {
  font-family: "Montserrat";
  src: url("../fonts/montserrat-latin-wght.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Open Sans";
  src: url("../fonts/open-sans-latin-wght.woff2") format("woff2");
  font-weight: 300 800;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;

  /* Brand: monochrome charcoal */
  --charcoal: #2e2e2e;          /* brand primary, page surface */
  --charcoal-deep: #171717;     /* brand deep, header and footer */
  --charcoal-raised: #383838;   /* raised tiles */
  --charcoal-sunk: #232323;     /* recessed tiles and inputs */
  --ink: #f3f3f2;               /* primary text, CTA fill */
  --ink-muted: #bdbdbc;         /* secondary text, >= 6.9:1 on all surfaces */
  --line: #4a4a4a;              /* hairlines and input borders */
  --line-strong: #8a8a8a;       /* hover borders */
  --mat: #efefed;               /* off-white mat behind line-art illustrations */
  --danger: #ffb4a8;            /* error text, >= 8:1 on charcoal */

  --font-display: "Montserrat", "Segoe UI", system-ui, sans-serif;
  --font-body: "Open Sans", "Segoe UI", system-ui, sans-serif;

  --radius-control: 2px;
  --header-h: 72px;
  --z-header: 100;

  --gutter: clamp(1rem, 4vw, 2rem);
  --section-y: clamp(3.5rem, 8vw, 6rem);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-padding-top: calc(var(--header-h) + 1rem);
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background: var(--charcoal);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.icon {
  width: 1.25em;
  height: 1.25em;
  flex: none;
}

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

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: calc(var(--z-header) + 1);
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: var(--charcoal-deep);
  border-radius: var(--radius-control);
}

.skip-link:focus {
  top: 0.75rem;
}

.container {
  width: 100%;
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.section-title {
  font-size: clamp(1.875rem, 3.5vw, 2.5rem);
}

.lead {
  margin-top: 1rem;
  max-width: 60ch;
  color: var(--ink-muted);
  font-size: 1.125rem;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.25s var(--ease-out),
    border-color 0.25s var(--ease-out),
    transform 0.25s var(--ease-out);
}

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

.btn .icon {
  width: 1.125em;
  height: 1.125em;
  transition: transform 0.25s var(--ease-out);
}

.btn:hover .icon {
  transform: translateX(3px);
}

.btn-primary {
  background: var(--ink);
  color: var(--charcoal-deep);
}

.btn-primary:hover {
  background: #fbfbfa;
}

.btn-secondary {
  border-color: var(--line-strong);
  color: var(--ink);
  background: transparent;
}

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

.btn[disabled] {
  cursor: progress;
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--charcoal-deep);
  border-bottom: 1px solid #262626;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo img {
  height: 44px;
  width: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  position: relative;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}

.nav-list a:hover,
.nav-list a[aria-current="true"] {
  color: var(--ink);
}

.nav-list a:hover::after,
.nav-list a[aria-current="true"]::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle .icon {
  width: 22px;
  height: 22px;
}

.nav-toggle .icon-close,
.nav-toggle[aria-expanded="true"] .icon-open {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

@media (max-width: 767px) {
  .js .nav-toggle {
    display: inline-flex;
  }

  .js .nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: none;
    background: var(--charcoal-deep);
    border-bottom: 1px solid var(--line);
  }

  .js .nav.is-open {
    display: block;
  }

  .js .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem var(--gutter) 1rem;
  }

  .js .nav-list a {
    display: block;
    padding: 0.875rem 0;
    font-size: 1.0625rem;
  }

  .js .nav-list a::after {
    display: none;
  }

  /* Without JS the nav stays visible and wraps under the logo. */
  html:not(.js) .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding-block: 0.75rem;
    gap: 0.5rem;
  }

  html:not(.js) .nav-list {
    gap: 1.25rem;
  }

  .logo img {
    height: 38px;
  }
}

/* --------------------------------------------------------------------------
   Hero: asymmetric split, text left, illustration right
   -------------------------------------------------------------------------- */
.hero {
  padding-block: clamp(3rem, 7vw, 5rem) clamp(3.5rem, 7vw, 5.5rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.hero-brand {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.hero h1 {
  margin-top: 1.25rem;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  max-width: 14ch;
}

.hero-sub {
  margin-top: 1.5rem;
  max-width: 46ch;
  font-size: 1.1875rem;
  color: var(--ink-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.25rem;
}

.hero-visual img {
  width: 100%;
  max-width: 560px;
  margin-inline: auto;
}

@media (max-width: 767px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual img {
    max-width: 420px;
  }
}

/* --------------------------------------------------------------------------
   Why CLADA: the CL / A / DA acronym as the signature block
   -------------------------------------------------------------------------- */
.about {
  background: var(--charcoal-deep);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  margin-top: clamp(2rem, 4vw, 3rem);
}

.acronym {
  margin: 0;
  padding: 0;
  list-style: none;
}

.acronym li {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  align-items: baseline;
  gap: 1.5rem;
  padding-block: 1.5rem;
}

.acronym li + li {
  border-top: 1px solid var(--line);
}

.acronym-key {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
}

.acronym-text {
  font-size: 1.1875rem;
  line-height: 1.5;
  color: var(--ink-muted);
}

.acronym-text strong {
  color: var(--ink);
  font-weight: 600;
}

.about-body p + p {
  margin-top: 1rem;
}

.about-body > p {
  color: var(--ink-muted);
  max-width: 55ch;
}

.principles {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.principles li {
  display: flex;
  gap: 0.75rem;
  padding-block: 0.5rem;
  max-width: 55ch;
}

.principles .icon {
  margin-top: 0.3em;
  color: var(--ink);
}

@media (max-width: 767px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .acronym li {
    grid-template-columns: 4.5rem minmax(0, 1fr);
    gap: 1rem;
  }
}

/* --------------------------------------------------------------------------
   Services: bento, 6 cells (5 services + 1 illustration)
   -------------------------------------------------------------------------- */
.bento {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(2rem, 4vw, 3rem);
  background: var(--line);
  border: 1px solid var(--line);
}

.tile {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-height: 15rem;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--charcoal);
}

.tile h3 {
  font-size: 1.375rem;
  margin-top: auto;
}

.tile p {
  color: var(--ink-muted);
}

.tile-lead {
  grid-column: span 2;
  background: var(--charcoal-raised);
}

.tile-lead h3 {
  font-size: clamp(1.625rem, 2.5vw, 2rem);
}

.tile-lead p {
  font-size: 1.125rem;
}

.tile-visual {
  grid-row: span 2;
  justify-content: center;
  background: var(--mat);
}

.tile-visual img {
  width: 100%;
  mix-blend-mode: multiply; /* the PNG carries its own white background */
}

.tile-wide {
  grid-column: span 2;
  background: var(--charcoal-sunk);
}

.capabilities {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 1rem 2.5rem;
  margin-top: 2.5rem;
}

.capabilities h3 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0;
}

.capabilities ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink-muted);
}

@media (max-width: 1023px) {
  .bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tile-visual {
    grid-row: auto;
    grid-column: span 2;
    order: 1;
  }

  .tile-visual img {
    max-width: 420px;
    margin-inline: auto;
  }

  .tile-wide {
    grid-column: span 1;
  }
}

@media (max-width: 767px) {
  .bento {
    grid-template-columns: 1fr;
  }

  .tile-lead,
  .tile-visual,
  .tile-wide {
    grid-column: auto;
  }

  .tile {
    min-height: 0;
  }

  .tile h3 {
    margin-top: 0;
  }

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

  .capabilities ul {
    flex-direction: column;
  }
}

/* --------------------------------------------------------------------------
   Contact: details column + form
   -------------------------------------------------------------------------- */
.contact {
  background: var(--charcoal-deep);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  margin-top: clamp(2rem, 4vw, 3rem);
}

.details {
  margin: 0;
  display: grid;
  gap: 1.75rem;
  align-content: start;
}

.details dt {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.details dd {
  margin: 0.375rem 0 0 1.875rem;
  font-size: 1.0625rem;
}

.details a {
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
}

.details a:hover {
  text-decoration-color: var(--ink);
}

.form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.field {
  display: grid;
  gap: 0.5rem;
  align-content: start;
}

.field-full {
  grid-column: 1 / -1;
}

.field label {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-control);
  background: var(--charcoal-sunk);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

.field textarea {
  min-height: 11rem;
  resize: vertical;
}

.field input:hover,
.field textarea:hover {
  border-color: var(--ink-muted);
}

.field input:focus-visible,
.field textarea:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
  border-color: var(--ink);
}

.field [aria-invalid="true"] {
  border-color: var(--danger);
}

.field-error {
  min-height: 0;
  font-size: 0.9375rem;
  color: var(--danger);
}

.field-error:empty {
  display: none;
}

.form-help {
  grid-column: 1 / -1;
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

.honeypot {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-footer {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.cf-turnstile {
  min-height: 65px;
}

.form-status {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  border: 1px solid var(--line-strong);
}

.form-status[hidden] {
  display: none;
}

.form-status-icon {
  display: flex;
  margin-top: 0.15em;
}

.form-status-icon .icon {
  width: 1.25rem;
  height: 1.25rem;
}

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

@media (max-width: 767px) {
  .contact-grid,
  .form {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  padding-block: clamp(3rem, 6vw, 4rem) 2rem;
  background: var(--charcoal-deep);
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: 2rem;
}

.footer .logo img {
  height: 52px;
}

.footer-tagline {
  margin-top: 1.25rem;
  max-width: 48ch;
}

.footer h2 {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--ink);
}

.footer ul {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.footer a {
  text-decoration: none;
}

.footer a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.footer address {
  margin-top: 1rem;
  font-style: normal;
}

.copyright {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #2a2a2a;
  font-size: 0.875rem;
}

@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* --------------------------------------------------------------------------
   Simple pages (404, privacy)
   -------------------------------------------------------------------------- */
.page-head {
  padding-block: clamp(3rem, 7vw, 5rem) 2rem;
}

.page-head h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.25rem);
}

.page-head .btn {
  margin-top: 2rem;
}

/* Termly privacy export: legal text is untouched; only its presentation is
   re-themed. Termly ships its own !important rules later in the page, so
   these use a higher specificity (main .legal ...) to win. */
.legal {
  padding-bottom: var(--section-y);
  max-width: 52rem;
}

main .legal,
main .legal * {
  color: var(--ink-muted) !important;
  font-family: var(--font-body) !important;
  background: transparent !important;
}

main .legal [data-custom-class="title"],
main .legal [data-custom-class="title"] *,
main .legal [data-custom-class="heading_1"],
main .legal [data-custom-class="heading_1"] *,
main .legal [data-custom-class="heading_2"],
main .legal [data-custom-class="heading_2"] *,
main .legal strong,
main .legal strong * {
  color: var(--ink) !important;
  font-family: var(--font-display) !important;
}

main .legal a,
main .legal a * {
  color: var(--ink) !important;
  text-decoration: underline !important;
}

.legal ul {
  padding-left: 1.25rem;
}

/* --------------------------------------------------------------------------
   Motion (MOTION_INTENSITY 4): hero entrance + one-shot section reveals.
   Only transform and opacity animate. Everything is static under
   prefers-reduced-motion and when JS is off.
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  .hero-copy > *,
  .hero-visual {
    animation: rise 0.8s var(--ease-out) both;
  }

  .hero-copy > :nth-child(2) { animation-delay: 0.06s; }
  .hero-copy > :nth-child(3) { animation-delay: 0.12s; }
  .hero-copy > :nth-child(4) { animation-delay: 0.18s; }
  .hero-visual { animation-delay: 0.15s; }

  .js .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition:
      opacity 0.7s var(--ease-out),
      transform 0.7s var(--ease-out);
    transition-delay: calc(var(--i, 0) * 70ms);
  }

  .js .reveal.is-in {
    opacity: 1;
    transform: none;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}