/* Coditify – yksi tyylitiedosto, mobile first. Ei ulkoisia fontteja eikä kuvia: hehkut ovat pelkkää CSS:ää.
   Muutoksen jälkeen aja: tools/bump-css-version.sh  (päivittää ?v=-leiman HTML-tiedostoihin, ettei selain käytä vanhaa välimuistia). */

:root {
  /* Tummansininen pohja, valkoinen teksti, kultainen korostus */
  --bg: #0b1a33;
  --surface: #11244a;
  --surface-2: #0e1f40;
  --panel: #07132a;
  --line: #24406e;
  --text: #ffffff;
  --muted: #c3cde0;

  --gold: #f2c14e;
  --gold-2: #d9a12b;
  --gold-hover: #f7d27a;
  --on-gold: #0b1a33;
  --glow-blue: #2f5bd3;
  --grad: linear-gradient(90deg, var(--gold), var(--gold-2));

  --focus: var(--gold);

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --measure: 40rem;
  --wrap: 72rem;
  --gutter: 1rem;
  --space-section: 3.5rem;
  --radius: 16px;
  --radius-lg: 24px;

  color-scheme: dark;
}

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

html {
  scroll-padding-top: 6rem;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--bg);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}

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

h1,
h2,
h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0 0 1rem;
  color: var(--text);
}

h1 {
  font-size: clamp(2.25rem, 7vw, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.625rem, 4.5vw, 2.5rem);
}

h3 {
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

p,
ul,
ol,
dl {
  margin: 0 0 1rem;
}

ul,
ol {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 0.35rem;
}

li::marker {
  color: var(--gold);
}

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

a:hover {
  color: var(--gold);
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.accent {
  color: var(--gold);
}

.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-linkki */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -10rem;
  z-index: 50;
  padding: 0.75rem 1rem;
  background: var(--gold);
  color: var(--on-gold);
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
}

.skip-link:focus {
  top: 1rem;
  outline-color: var(--text);
}

/* Asettelu */
.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.prose {
  max-width: var(--measure);
}

.prose h2:not(:first-child) {
  margin-top: 2.5rem;
}

.section {
  padding: var(--space-section) 0;
}

.section-intro {
  max-width: var(--measure);
  margin-bottom: 2rem;
}

.section-intro p {
  color: var(--muted);
}

.eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--gold);
}

.lead {
  font-size: 1.1875rem;
  max-width: var(--measure);
}

/* Header: kiinteä, lasimainen */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 26, 51, 0.85);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.5rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
  color: var(--text);
}

.logo:hover {
  color: var(--text);
}

.logo-mark {
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--gold-hover), var(--gold) 50%, var(--gold-2));
}

.header-cta {
  margin-left: auto;
}

.site-nav {
  order: 3;
  width: 100%;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav li + li {
  margin-top: 0;
}

.site-nav a {
  display: inline-block;
  padding: 0.5rem 0;
  color: var(--text);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--gold);
}

.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.45em;
}

/* Painikkeet: kultainen pohja, tummansininen teksti */
.button {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  background: var(--gold);
  color: var(--on-gold);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  border: 1px solid var(--gold);
}

.button:hover {
  background: var(--gold-hover);
  border-color: var(--gold-hover);
  color: var(--on-gold);
}

.button--small {
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
}

/* Hero: tummansininen, kultainen ja sininen hehku alareunassa, teksti tummalla keskialueella */
.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  text-align: center;
  padding: 4.5rem 0 12rem;
  background:
    radial-gradient(ellipse 75% 55% at 50% 22%, var(--bg) 0%, var(--bg) 50%, rgba(11, 26, 51, 0) 100%),
    radial-gradient(ellipse 55% 55% at 12% 100%, rgba(47, 91, 211, 0.75) 0%, rgba(47, 91, 211, 0) 70%),
    radial-gradient(ellipse 55% 55% at 88% 100%, rgba(47, 91, 211, 0.6) 0%, rgba(47, 91, 211, 0) 70%),
    radial-gradient(ellipse 70% 55% at 50% 105%, rgba(242, 193, 78, 0.85) 0%, rgba(217, 161, 43, 0.45) 40%, rgba(217, 161, 43, 0) 75%),
    var(--bg);
}

.hero h1 {
  max-width: 18ch;
  margin-left: auto;
  margin-right: auto;
}

.hero .lead {
  margin: 0 auto 2rem;
  color: var(--muted);
}

.hero .actions {
  justify-content: center;
}

.page-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 3.5rem 0 3rem;
}

.page-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -20%;
  top: -60%;
  width: 70%;
  height: 160%;
  background: radial-gradient(closest-side, rgba(242, 193, 78, 0.22), rgba(47, 91, 211, 0.25) 55%, rgba(11, 26, 51, 0) 100%);
}

.page-hero h1 {
  max-width: 20ch;
}

.page-hero .lead {
  color: var(--muted);
  margin-bottom: 0;
}

/* Korostetut korttiosiot: sisennetty, pyöristetty, tummempi paneeli */
.section.dark {
  padding: 0;
  margin: var(--space-section) 0;
}

.section.dark > .wrap {
  margin-inline: max(var(--gutter), calc((100% - var(--wrap)) / 2));
  max-width: none;
  padding: 2.5rem 1.5rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.cta > .wrap::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: 15%;
  right: 15%;
  bottom: -65%;
  height: 90%;
  background: radial-gradient(closest-side, rgba(242, 193, 78, 0.35), rgba(47, 91, 211, 0.3) 60%, rgba(7, 19, 42, 0) 100%);
}

.cta h2 {
  max-width: 22ch;
}

.cta p {
  max-width: var(--measure);
}

/* Kaksipalstainen osio: teksti + hehkupaneeli */
.split {
  display: grid;
  gap: 2rem;
}

.glow-panel {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  min-height: 16rem;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  padding: 2rem 1.5rem;
}

.glow-panel::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -10%;
  right: -10%;
  bottom: -60%;
  height: 100%;
  background: radial-gradient(closest-side, rgba(242, 193, 78, 0.55), rgba(47, 91, 211, 0.35) 55%, rgba(14, 31, 64, 0) 100%);
}

.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  width: 100%;
  max-width: 16rem;
}

.flow li {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  background: rgba(7, 19, 42, 0.85);
  border: 1px solid var(--line);
  font-weight: 500;
}

.flow span {
  display: inline-grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--gold);
  color: var(--on-gold);
  font-size: 0.875rem;
  font-weight: 700;
}

/* Viivoilla erotettu lista, ensimmäisellä kultainen alleviivaus */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 2rem;
}

.feature-list > li {
  position: relative;
  margin: 0;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.feature-list > li:first-child::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 40%;
  height: 2px;
  background: var(--grad);
}

.feature-list h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.feature-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

/* Kortit */
.cards {
  display: grid;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.cards > li + li {
  margin-top: 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--muted);
  font-size: 0.9375rem;
}

.card p:last-child {
  margin-bottom: 0;
}

.card .more {
  margin-top: auto;
  padding-top: 0.5rem;
  font-weight: 500;
  font-size: 0.9375rem;
}

/* Vaiheet */
.steps {
  list-style: none;
  padding: 0;
  margin: 0 0 2.5rem;
  display: grid;
  gap: 1.75rem;
}

.steps > li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  align-content: start;
  gap: 0 1rem;
  margin: 0;
}

.step-no {
  display: inline-grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--gold);
  color: var(--on-gold);
  font-weight: 700;
  font-size: 0.9375rem;
}

.steps h3 {
  margin-top: 0.35rem;
  margin-bottom: 0.35rem;
}

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

.steps p:last-child {
  margin-bottom: 0;
}

/* Palvelut-sivun osiot */
.service {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
}

.service + .service {
  margin-top: 1.25rem;
}

.service .lead {
  margin-bottom: 2rem;
  color: var(--muted);
}

.service-grid {
  display: grid;
  gap: 1.5rem 2.5rem;
}

.service-grid h3 {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.service-grid ul,
.service-grid ol {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* Periaatteet */
.principles {
  display: grid;
  gap: 0;
  margin: 0;
}

.principles > div {
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
}

.principles dt {
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.35rem;
}

.principles dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

/* Huomiolaatikko */
.note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  max-width: var(--measure);
  color: var(--muted);
}

/* Kuvapaikka (perustajan kuva, ks. TODO.md) */
.portrait {
  margin: 0;
  max-width: 22rem;
}

.portrait img {
  border-radius: var(--radius);
}

.portrait figcaption {
  font-size: 0.9375rem;
  margin-top: 0.5rem;
}

.story {
  display: grid;
  gap: 2.5rem 4rem;
  align-items: start;
}

/* Yhteystiedot */
.contact-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12.5rem, 1fr));
  gap: 1rem;
  margin: 0;
}

.contact-list > div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

.contact-list dt {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.contact-list dd {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 500;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.site-footer li + li {
  margin-top: 0;
}

.site-footer li:first-child {
  color: var(--text);
  font-weight: 600;
}

.site-footer p {
  margin: 0.75rem 0 0;
}

/* Leveämmät näytöt */
@media (min-width: 48rem) {
  :root {
    --gutter: 2rem;
    --space-section: 5rem;
  }

  .site-nav {
    order: 0;
    width: auto;
  }

  .site-nav ul {
    gap: 0 1.75rem;
  }

  .hero {
    padding: 7rem 0 16rem;
  }

  .page-hero {
    padding: 5rem 0 4rem;
  }

  .section.dark > .wrap {
    padding: 3.5rem;
  }

  .split {
    grid-template-columns: 5fr 6fr;
    gap: 3rem;
    align-items: stretch;
  }

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

  .steps--row {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }

  .steps--row > li {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .service {
    padding: 2.5rem;
  }

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

  .principles {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 3rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media print {
  .site-header,
  .skip-link {
    display: none;
  }

  html,
  body,
  .hero,
  .section.dark > .wrap,
  .card,
  .service {
    background: #fff;
    color: #000;
  }
}