/* ==========================================================================
   AMJ Talot – one pager
   Suunta: arkkitehtuuripiirustus × editoriaalinen. Musta pohja, valkoinen teksti,
   vaalea betoniosio rytmiksi ja yksi lämmin aksentti (mittanauhan okra).
   ========================================================================== */

/* Fontit omalta palvelimelta (ei Googlen palvelimia: nopeampi ja GDPR-ystävällinen).
   Archivo on rajattu käytettyihin arvoihin: leveys 92–100 %, paino 200–700, latin-merkit.
   Jos fonttitiedosto vaihtuu, vaihda myös tiedostonimi (pitkä välimuisti, ks. _headers).
   Lisenssit: SIL OFL 1.1, assets/fonts/OFL-*.txt */
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 200 700;
  font-stretch: 92% 100%;
  font-display: swap;
  src: url("../fonts/archivo-var.woff2") format("woff2");
}
@font-face {
  font-family: "Fragment Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/fragment-mono.woff2") format("woff2");
}

:root {
  --c-black: #0a0a09;
  --c-ink: #141412;
  --c-white: #f4f2ed;
  --c-bone: #e7e3da;
  --c-accent: #e4a23c;
  --c-accent-deep: #8a5312; /* 4,93:1 betonilla */
  --c-muted: rgba(244, 242, 237, 0.62); /* 7,0:1 mustalla */
  --c-faint: rgba(244, 242, 237, 0.5); /* 4,88:1 mustalla – pienin sallittu tekstille */
  --c-ink-muted: rgba(10, 10, 9, 0.62); /* 5,18:1 betonilla */
  --c-line: rgba(244, 242, 237, 0.14);
  --c-line-strong: rgba(244, 242, 237, 0.3);

  --f-sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "Fragment Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --gutter: clamp(20px, 4.4vw, 72px);
  --maxw: 1680px;
  --nav-h: 84px;
  --tap-min: 44px;

  /* Ruudukko: 12 saraketta, näkyvät viivat sarakkeiden 1, 4, 7 ja 10 alussa */
  --grid-gap: clamp(16px, 2vw, 32px);
  --grid-line: rgba(128, 126, 120, 0.09);

  /* Välit */
  --space-stack: clamp(56px, 7.5vw, 120px);   /* otsikko → sisältö */
  --space-block: clamp(88px, 10vw, 160px);    /* lohko → lohko osion sisällä */
  --space-section: clamp(104px, 13vw, 208px); /* osio → osio */

  /* Typografia */
  --fs-display-xl: clamp(40px, 13.4vw, 248px); /* hero + yhteystiedot (peilipari) */
  --fs-display-l: clamp(44px, 6.6vw, 120px);   /* osio-otsikot, asiakasnauha */
  --fs-h2: clamp(28px, 3.4vw, 58px);           /* yhteystietolinkit */
  --fs-h3: clamp(24px, 2.6vw, 44px);           /* palvelurivit */
  --fs-lead: clamp(21px, 1.75vw, 28px);
  --fs-body-l: clamp(17px, 1.3vw, 20px);
  --fs-label: 12px;

  --fw-light: 200;
  --fw-regular: 400;
  --fw-medium: 600;
  --fw-bold: 700;

  --tracking-display: -0.045em;
  --tracking-heading: -0.03em;
  --tracking-snug: -0.015em;
  --tracking-label: 0.14em;

  --stretch-display: 92%;
  --icon-stroke: 1.5px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---------- Perusta ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  color-scheme: dark; /* tummat vierityspalkit ja järjestelmän UI */
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) - 1px);
}

body {
  margin: 0;
  background: var(--c-black);
  color: var(--c-white);
  font-family: var(--f-sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: var(--fw-regular);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, figure, ol, ul { margin: 0; }
h1, h2, h3, h4 { font-weight: inherit; font-size: inherit; }
ol, ul { list-style: none; padding: 0; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
strong { font-weight: var(--fw-bold); }

::selection { background: var(--c-accent); color: var(--c-black); }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 4px; }

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

.sr-only {
  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: fixed;
  top: 12px; left: 12px;
  z-index: 100;
  padding: 12px 18px;
  background: var(--c-white);
  color: var(--c-black);
  font-weight: var(--fw-medium);
  transform: translateY(-150%);
  transition: transform 0.3s var(--ease-out);
}
.skip-link:focus { transform: none; }

/* Suomen pitkät yhdyssanat: tavutus vain leipätekstiin – ei otsikoihin, etiketteihin tai osoitteisiin */
.hero__lead,
.about__body > p:not(.about__lead):not(.kicker),
.service__text,
.clients__text,
.contact__lead {
  -webkit-hyphens: auto;
  hyphens: auto;
  hyphenate-limit-chars: 10 4 4;
}

/* Mono-etiketit */
.eyebrow,
.kicker,
.section-head,
.service__idx,
.big-link__label,
.person__role,
.clients__foot,
.footer__bottom,
.video-toggle,
.korko {
  font-family: var(--f-mono);
  font-size: var(--fs-label);
  line-height: 1.4;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

/* ---------- Piirustusruudukko + rae ---------- */

.gridlines {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}
.gridlines__inner {
  height: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--grid-gap);
}
/* Viivat osuvat sarakkeiden 1, 4, 7 ja 10 alkuun – samoihin kohtiin, joihin sisältö on lukittu */
.gridlines__inner span { grid-row: 1; border-left: 1px solid var(--grid-line); }
.gridlines__inner span:nth-child(1) { grid-column: 1; }
.gridlines__inner span:nth-child(2) { grid-column: 4; }
.gridlines__inner span:nth-child(3) { grid-column: 7; }
.gridlines__inner span:nth-child(4) { grid-column: 10; }
.gridlines__inner::after { content: ""; grid-row: 1; grid-column: 12; border-right: 1px solid var(--grid-line); }

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 220px;
}

/* ---------- Painikkeet & linkit ---------- */

.arrow {
  width: 16px;
  height: 16px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: var(--icon-stroke);
  transition: transform 0.5s var(--ease-out);
}
/* Sama viivavahvuus ikonin koosta riippumatta */
.arrow path,
.clients__hint path { vector-effect: non-scaling-stroke; }

.btn {
  --h: 56px;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  height: var(--h);
  padding: 0 28px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: color 0.45s var(--ease-out), border-color 0.45s var(--ease-out);
}
.btn::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  background: var(--c-accent);
  transform: translateY(101%);
  transition: transform 0.55s var(--ease-out);
}
.btn:hover::before,
.btn:focus-visible::before { transform: none; }
.btn:hover .arrow { transform: translateX(4px); }

.btn--solid { background: var(--c-white); color: var(--c-black); }
.btn--ghost { border-color: var(--c-line-strong); color: var(--c-white); }
.btn--ghost:hover,
.btn--ghost:focus-visible { color: var(--c-black); border-color: var(--c-accent); }
.btn--sm { --h: 44px; padding: 0 20px; font-size: 14px; }

/* ---------- Navigaatio ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition:
    transform 0.6s var(--ease-out),
    background-color 0.5s ease,
    border-color 0.5s ease,
    backdrop-filter 0.5s ease;
}
.nav.is-solid {
  background: rgba(10, 10, 9, 0.76);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom-color: var(--c-line);
}
.nav.is-hidden { transform: translateY(-101%); }

.nav__inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav__logo {
  display: flex;
  align-items: center;
  min-height: var(--tap-min);
  margin-right: auto;
}
.nav__logo img { height: 40px; width: auto; }

/* Vain yksi "Ota yhteyttä" kerrallaan: navin painike tulee esiin, kun heron painike on ohitettu */
.js .nav__cta {
  transition:
    color 0.45s var(--ease-out),
    border-color 0.45s var(--ease-out),
    opacity 0.5s ease,
    transform 0.6s var(--ease-out),
    visibility 0s linear 0.5s;
}
.js .nav:not(.is-past-hero) .nav__cta {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
}
.js .nav.is-past-hero .nav__cta {
  transition:
    color 0.45s var(--ease-out),
    border-color 0.45s var(--ease-out),
    opacity 0.5s ease,
    transform 0.6s var(--ease-out),
    visibility 0s;
}

.nav__links {
  display: flex;
  gap: clamp(24px, 3vw, 48px);
  font-size: 15px;
  font-weight: var(--fw-regular);
}
.nav__links a {
  position: relative;
  display: inline-flex;
  align-items: flex-start;
  gap: 6px;
  padding-block: 8px;
  color: var(--c-muted);
  transition: color 0.3s ease;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--ease-out);
}
.nav__links a:hover,
.nav__links a.is-active { color: var(--c-white); }
.nav__links a:hover::after,
.nav__links a.is-active::after { transform: scaleX(1); transform-origin: left; }
.nav__idx {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--c-accent);
  transform: translateY(-2px);
}

.nav__toggle {
  display: none;
  align-items: center;
  gap: 14px;
  height: 44px;
  font-family: var(--f-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}
.nav__toggle-icon {
  position: relative;
  width: 26px;
  height: 10px;
}
.nav__toggle-icon i {
  position: absolute;
  left: 0; right: 0;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.5s var(--ease-out), top 0.5s var(--ease-out);
}
.nav__toggle-icon i:first-child { top: 0; }
.nav__toggle-icon i:last-child { top: 8.5px; }
.menu-open .nav__toggle-icon i:first-child { top: 4.25px; transform: rotate(36deg); }
.menu-open .nav__toggle-icon i:last-child { top: 4.25px; transform: rotate(-36deg); }

/* Mobiilivalikko */
.menu {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: var(--c-black);
  padding-top: var(--nav-h);
  visibility: hidden;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.7s var(--ease-io), visibility 0s linear 0.7s;
}
.menu-open .menu {
  visibility: visible;
  clip-path: inset(0 0 0 0);
  transition: clip-path 0.7s var(--ease-io), visibility 0s;
}
.menu__inner:focus { outline: none; } /* ohjelmallinen fokus valikkoon avattaessa – ei rengasta */
.menu__inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-block: 40px 32px;
}
.menu__links a {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-block: 10px;
  font-size: clamp(44px, 13vw, 80px);
  font-weight: var(--fw-bold);
  line-height: 1;
  letter-spacing: var(--tracking-display);
}
.menu__links span {
  font-family: var(--f-mono);
  font-size: var(--fs-label);
  font-weight: var(--fw-regular);
  letter-spacing: var(--tracking-label);
  color: var(--c-accent);
  padding-top: 0.6em;
}
.menu__foot {
  display: grid;
  justify-items: start;
  padding-top: 16px;
  border-top: 1px solid var(--c-line);
  font-size: 18px;
  color: var(--c-muted);
}
.menu__foot a {
  display: flex;
  align-items: center;
  min-height: var(--tap-min);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: calc(var(--nav-h) + 48px);
  padding-bottom: clamp(28px, 5vh, 56px);
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}
.hero__fallback {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 60% at 82% 100%, rgba(228, 162, 60, 0.16), transparent 70%),
    radial-gradient(60% 50% at 8% 0%, rgba(244, 242, 237, 0.07), transparent 70%),
    linear-gradient(180deg, #0d0d0c 0%, var(--c-black) 100%);
}
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 1.6s ease, transform 2.6s var(--ease-out);
}
.has-video .hero__video { opacity: 1; transform: scale(1); }

/* Säädä videon tummennusta tästä: --hero-dim = tasainen tummennus koko videon päällä */
.hero__shade {
  --hero-dim: 0.34;
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 10, 9, 0.7) 0%, rgba(10, 10, 9, 0) 30%, rgba(10, 10, 9, 0.1) 52%, rgba(10, 10, 9, 0.9) 100%),
    linear-gradient(90deg, rgba(10, 10, 9, 0.5) 0%, rgba(10, 10, 9, 0) 65%),
    rgba(10, 10, 9, var(--hero-dim));
}

.hero__roof {
  position: absolute;
  left: 50%;
  top: calc(var(--nav-h) + 3vh);
  width: max(112vw, 120vh);
  max-width: none;
  transform: translateX(-50%);
  overflow: visible;
  opacity: 0.24;
}
.hero__roof path {
  fill: none;
  stroke: var(--c-white);
  stroke-width: 1;
  stroke-dasharray: 1;
  stroke-dashoffset: 0;
}
.js .hero__roof path {
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 2.4s var(--ease-io) 0.35s;
}
.js.is-loaded .hero__roof path { stroke-dashoffset: 0; }

.hero__content { position: relative; }

/* Yläteksti on h1:n ensimmäinen rivi: nollataan otsikon typografia */
.hero__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(20px, 3.5vh, 40px);
  font-weight: var(--fw-regular);
  font-stretch: normal;
  text-shadow: 0 1px 14px rgba(10, 10, 9, 0.6);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--c-muted);
}
.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--c-accent);
}

.hero__title {
  font-size: var(--fs-display-xl);
  font-weight: var(--fw-bold);
  font-stretch: var(--stretch-display);
  line-height: 0.86;
  letter-spacing: var(--tracking-display);
}
.hero__title .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.1em;
  margin-bottom: -0.1em;
}
.hero__title .line > span { display: inline-block; }
.hero__title .line--indent { padding-left: 1.75em; }
.hero__title .light { font-weight: var(--fw-light); letter-spacing: var(--tracking-heading); }

.js .hero__title .line > span {
  transform: translateY(110%);
  transition: transform 1.4s var(--ease-out);
}
.js .hero__title .line:nth-child(2) > span { transition-delay: 0.12s; }
.js.is-loaded .hero__title .line > span { transform: none; }

.hero__foot {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 28px 64px;
  margin-top: clamp(32px, 5vh, 64px);
  padding-top: 28px;
}
.hero__foot::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: var(--c-line-strong);
  transform-origin: left;
}
.hero__lead {
  max-width: 50ch;
  color: var(--c-muted);
  font-size: var(--fs-body-l);
  line-height: 1.55;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }

.js .hero__eyebrow,
.js .hero__actions {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 1s ease, transform 1.2s var(--ease-out);
}
/* Ingressi on sivun LCP-elementti: se näkyy heti ensimmäisestä piirrosta ja vain liukuu paikalleen.
   Häivytys nollasta viivästytti LCP:tä mobiilissa ~1,8 s (mitattu). */
.js .hero__lead {
  transform: translateY(12px);
  transition: transform 1.2s var(--ease-out);
}
.js .hero__foot::before { transform: scaleX(0); transition: transform 1.6s var(--ease-io) 0.4s; }
.js .hero__eyebrow { transition-delay: 0.05s; }
.js .hero__lead { transition-delay: 0.2s; }
.js .hero__actions { transition-delay: 0.3s; }
.js.is-loaded .hero__eyebrow,
.js.is-loaded .hero__lead,
.js.is-loaded .hero__actions { opacity: 1; transform: none; }
.js.is-loaded .hero__foot::before { transform: none; }

/* Istuu otsikon alla olevan viivan päällä oikeassa reunassa; osuma-alue 44 px, teksti 10 px viivan yläpuolella */
.video-toggle {
  position: absolute;
  right: 0;
  bottom: 100%;
  display: none;
  align-items: center;
  gap: 10px;
  padding: 17px 0 10px;
  color: var(--c-muted);
  text-shadow: 0 1px 14px rgba(10, 10, 9, 0.6);
  transition: color 0.3s;
}
.video-toggle:hover { color: var(--c-white); }
.has-video .video-toggle { display: inline-flex; }
.video-toggle__icon {
  width: 10px;
  height: 10px;
  border-inline: 3px solid currentColor;
}
.video-toggle[aria-pressed="true"] .video-toggle__icon {
  border: 0;
  border-left: 9px solid currentColor;
  border-block: 5px solid transparent;
}

/* ---------- Osiot ---------- */

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

.section-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: var(--space-stack);
}
.section-head__idx { color: var(--c-accent); }
.section-head__line {
  flex: 1;
  height: 1px;
  background: currentColor;
  opacity: 0.25;
  transform-origin: left;
}
.js .section-head__line { transform: scaleX(0); transition: transform 1.6s var(--ease-io) 0.15s; }
.js .section-head.is-in .section-head__line { transform: none; }

/* Yleinen paljastus */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s ease, transform 1.2s var(--ease-out);
  transition-delay: var(--delay, 0s);
}
.js .section-head[data-reveal] { transform: none; }
.js [data-reveal].is-in { opacity: 1; transform: none; }

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--c-muted);
  margin-bottom: 28px;
}

/* ---------- 01 Yritys ---------- */

/* Esittely sarakkeesta 7, Arin yhteyskortti sarakkeissa 1–4. Molemmat riville 1, koska DOM-järjestys on teksti → kortti. */
.about__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 56px var(--grid-gap);
  align-items: start;
}
/* Kortti on tekstiä korkeampi: esittely pysyy näkyvissä kortin vieressä vieritettäessä */
.about__body { grid-column: 7 / span 6; grid-row: 1; position: sticky; top: calc(var(--nav-h) + 40px); }
.about__person { grid-column: 1 / span 4; grid-row: 1; }

.about__lead {
  font-size: var(--fs-lead);
  line-height: 1.35;
  letter-spacing: var(--tracking-snug);
  margin-bottom: 24px;
}
.about__body > p:not(.about__lead):not(.kicker) {
  color: var(--c-muted);
  max-width: 52ch;
}

/* Palvelut */
.services { margin-top: var(--space-block); }
.services__head {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px var(--grid-gap);
  align-items: end;
  margin-bottom: clamp(40px, 5vw, 72px);
}
.services__title {
  grid-column: 1 / span 9;
  font-size: var(--fs-display-l);
  font-weight: var(--fw-bold);
  font-stretch: var(--stretch-display);
  line-height: 0.9;
  letter-spacing: var(--tracking-display);
}
.services__title .light,
.clients__title .light,
.contact__title .light { font-weight: var(--fw-light); }

.service {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px var(--grid-gap);
  align-items: baseline;
  padding-block: clamp(26px, 2.6vw, 40px);
  border-top: 1px solid var(--c-line);
}
.service:last-child { border-bottom: 1px solid var(--c-line); }
.service__idx { grid-column: 1; color: var(--c-muted); }
.service__title {
  grid-column: 2 / span 5;
  font-size: var(--fs-h3);
  font-weight: var(--fw-regular);
  line-height: 1.05;
  letter-spacing: var(--tracking-heading);
}
.service__text { grid-column: 7 / span 5; color: var(--c-muted); max-width: 46ch; }

/* ---------- 02 Asiakkaat (vaalea osio) ---------- */

.clients {
  color-scheme: light;
  padding-bottom: var(--space-block);
  background: var(--c-bone);
  color: var(--c-black);
  overflow: hidden;
}
.clients ::selection { background: var(--c-black); color: var(--c-bone); }
.clients .section-head__idx { color: var(--c-accent-deep); }

.clients__intro {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 32px var(--grid-gap);
  align-items: end;
  margin-bottom: var(--space-stack);
}
.clients__title {
  grid-column: 1 / span 8;
  font-size: var(--fs-display-l);
  font-weight: var(--fw-bold);
  font-stretch: var(--stretch-display);
  line-height: 0.9;
  letter-spacing: var(--tracking-display);
  text-wrap: balance;
}
.clients__text {
  grid-column: 10 / span 3;
  max-width: 40ch;
  color: var(--c-ink-muted);
}

.marquees { border-bottom: 1px solid rgba(10, 10, 9, 0.16); }
.marquee {
  position: relative;
  overflow: hidden;
  padding-block: clamp(18px, 2.2vw, 34px);
  border-top: 1px solid rgba(10, 10, 9, 0.16);
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
}
.marquee.is-dragging { cursor: grabbing; }
.marquee__track {
  display: flex;
  width: max-content;
  will-change: transform;
}
.marquee__group { display: flex; flex: none; align-items: center; }

.client {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-display-l);
  font-weight: var(--fw-bold);
  font-stretch: var(--stretch-display);
  line-height: 1.05;
  letter-spacing: var(--tracking-display);
  white-space: nowrap;
}
/* Kattoerotin jokaisen nimen perään */
.client::after {
  content: "";
  flex: none;
  width: 0.62em;
  height: 0.26em;
  margin-inline: 0.42em;
  transform: translateY(-0.12em);
  background: var(--c-accent-deep);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 62 26'%3E%3Cpath d='M1 25 31 2l30 23' fill='none' stroke='%23000' stroke-width='2.6'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 62 26'%3E%3Cpath d='M1 25 31 2l30 23' fill='none' stroke='%23000' stroke-width='2.6'/%3E%3C/svg%3E") center / contain no-repeat;
}
.client__oy {
  font-weight: var(--fw-light);
  margin-left: 0.22em;
  letter-spacing: var(--tracking-heading);
}
.marquee--light .client { font-weight: var(--fw-light); letter-spacing: var(--tracking-heading); }
.marquee--light .client__oy { opacity: 0.55; }

.clients__hint { display: inline-flex; align-items: center; gap: 10px; }
.clients__hint svg { width: 22px; height: 10px; fill: none; stroke: currentColor; stroke-width: var(--icon-stroke); }
.clients__foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  color: var(--c-ink-muted);
}

/* ---------- 03 Yhteystiedot ---------- */

.contact__title {
  font-size: var(--fs-display-xl);
  font-weight: var(--fw-bold);
  font-stretch: var(--stretch-display);
  line-height: 0.86;
  letter-spacing: var(--tracking-display);
}
.contact__title .light { display: block; padding-left: 1.75em; }

/* Johdanto vasemmalla ruudukkoviivalla 1, linkit sarakkeesta 7 */
.contact__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 40px var(--grid-gap);
  align-items: start;
  margin-top: var(--space-stack);
}
.contact__lead {
  grid-column: 1 / span 5;
  max-width: 42ch;
  padding-top: 22px; /* sama kuin linkin yläpadding: teksti alkaa ensimmäisen linkin etiketin tasolta */
  color: var(--c-muted);
  font-size: var(--fs-body-l);
}
.contact__links { grid-column: 7 / span 6; }

/* Yhteyshenkilön kortti: muotokuva 4:5, nimi ja suorat yhteydet */
.person__photo picture { display: block; }
.person__photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: var(--c-ink);
}
.person__meta {
  padding-block: 22px 20px;
  border-top: 1px solid var(--c-line-strong);
}
.person__role { color: var(--c-muted); margin-bottom: 10px; }
.person__name {
  font-size: var(--fs-h3);
  font-weight: var(--fw-regular);
  line-height: 1.05;
  letter-spacing: var(--tracking-heading);
}

.big-link {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 6px 24px;
  padding-block: 22px 20px;
  border-top: 1px solid var(--c-line-strong);
}
.big-link:last-child { border-bottom: 1px solid var(--c-line-strong); }
.big-link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease-out);
}
.big-link:hover::after,
.big-link:focus-visible::after { transform: none; }
.big-link__label { grid-column: 1 / -1; color: var(--c-muted); }
.big-link__value {
  font-size: var(--fs-h2);
  font-weight: var(--fw-regular);
  line-height: 1.05;
  letter-spacing: var(--tracking-heading);
  overflow-wrap: anywhere;
  transition: color 0.3s;
}
.big-link .arrow { width: 28px; height: 28px; margin-bottom: 0.4em; }
.big-link:hover .big-link__value { color: var(--c-accent); }
.big-link:hover .arrow { transform: translateX(6px); }
.big-link:hover .arrow--out { transform: translate(4px, -4px); } /* ulkoinen linkki */

/* Pieni versio kapeaan palstaan (yhteyshenkilön kortti) */
.big-link--sm { padding-block: 16px 14px; }
.big-link--sm .big-link__value { font-size: var(--fs-lead); }
.big-link--sm .arrow { width: 20px; height: 20px; margin-bottom: 0.3em; }

/* ---------- Footer ---------- */

.footer {
  position: relative;
  padding-top: clamp(72px, 9vw, 140px);
  padding-bottom: 28px;
  border-top: 1px solid var(--c-line);
  overflow: hidden;
}
.footer__gable-inner {
  position: relative;
  aspect-ratio: 1000 / 364;
}
.footer__roof {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}
.footer__roof .d {
  fill: none;
  stroke: var(--c-white);
  stroke-width: 1;
  stroke-dasharray: 1;
  opacity: 0.5;
}
/* Päädyn viivat piirtyvät esiin, kun footer tulee näkyviin */
.js [data-reveal-draw] .d {
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 2.4s var(--ease-io);
  transition-delay: calc(var(--i, 0) * 110ms);
}
.js [data-reveal-draw].is-in .d { stroke-dashoffset: 0; }
.footer__logo {
  position: absolute;
  left: 50%;
  bottom: 6%;
  width: clamp(150px, 34%, 560px);
  transform: translateX(-50%);
}
.footer__logo img { width: 100%; height: auto; }
.js .footer__logo { opacity: 0; transition: opacity 1.4s ease 1.2s; }
.js .footer__gable.is-in .footer__logo { opacity: 1; }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
  flex-wrap: wrap;
  margin-top: clamp(48px, 6vw, 96px);
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
  color: var(--c-faint);
}
.footer__nav { display: flex; flex-wrap: wrap; gap: 0 28px; }
.footer__bottom a { transition: color 0.3s; }
.footer__bottom a:hover { color: var(--c-white); }
.footer__id { white-space: nowrap; } /* ei katkea Y-tunnuksen tavuviivasta */

/* ---------- Korkomittari ---------- */

.korko {
  position: fixed;
  right: max(14px, calc(var(--gutter) * 0.32));
  top: 50%;
  z-index: 40;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: #fff;
  mix-blend-mode: difference;
  font-size: 10px;
  letter-spacing: 0.12em;
  transform: translateY(-50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.korko.is-visible { opacity: 1; }
.korko__label,
.korko__value { writing-mode: vertical-rl; transform: rotate(180deg); }
.korko__value { font-variant-numeric: tabular-nums; min-height: 6.5ch; }
.korko__scale {
  position: relative;
  width: 9px;
  height: 168px;
  background: repeating-linear-gradient(to top, currentColor 0 1px, transparent 1px 12px) center / 5px 100% no-repeat;
  opacity: 0.85;
}
.korko__scale::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 50%;
  width: 1px;
  background: currentColor;
  opacity: 0.35;
}
.korko__marker {
  position: absolute;
  left: -5px;
  bottom: calc(var(--p, 0) * 100%);
  width: 19px;
  height: 1.5px;
  background: currentColor;
}

/* ---------- 404 (404.html) ---------- */

.notfound {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-stack);
  padding-block: 28px clamp(28px, 5vh, 56px);
}
.notfound__logo { display: block; width: clamp(112px, 10vw, 152px); }
.notfound__logo img { width: 100%; height: auto; }
.notfound__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
}
.notfound__title {
  font-size: var(--fs-display-l);
  font-weight: var(--fw-bold);
  font-stretch: var(--stretch-display);
  line-height: 0.9;
  letter-spacing: var(--tracking-display);
}
.notfound__title .light { font-weight: var(--fw-light); letter-spacing: var(--tracking-heading); }
.notfound__text {
  max-width: 46ch;
  color: var(--c-muted);
  font-size: var(--fs-body-l);
}

/* ---------- Responsiivisuus ---------- */

@media (min-width: 1280px) {
  .korko { display: flex; }
}

@media (max-width: 1100px) {
  .services__title,
  .clients__title { grid-column: 1 / -1; }
  .clients__text { grid-column: 1 / span 8; }
}

@media (max-width: 900px) {
  :root { --nav-h: 72px; }
  .nav__links,
  .nav__cta { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav__logo img { height: 34px; }

  .hero__foot { grid-template-columns: 1fr; }
  .hero__title .line--indent,
  .contact__title .light { padding-left: 1em; }

  /* Esittely ensin koko leveydeltä, kortti sen alle puolikkaaseen */
  .about__body { grid-column: 1 / -1; max-width: 680px; position: static; }
  .about__person { grid-column: 1 / span 6; grid-row: 2; }

  .service { grid-template-columns: 56px minmax(0, 1fr); }
  .service__title,
  .service__text { grid-column: 2; }

  .contact__lead,
  .contact__links { grid-column: 1 / -1; }
  .contact__lead { padding-top: 0; }

  /* Peukalokokoiset osuma-alueet */
  .footer__bottom a {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    min-height: var(--tap-min);
  }
}

@media (max-width: 700px) {
  body { font-size: 16px; }
  /* Kapealla näkyvät vain reunat ja keskiviiva */
  .gridlines__inner span:nth-child(2n) { display: none; }

  .hero__top { flex-wrap: wrap; }
  .hero__actions .btn { flex: 1 1 auto; }

  .about__person { grid-column: 1 / -1; max-width: 420px; }

  .clients__text { grid-column: 1 / -1; }
  .clients__hint { display: none; }

  .hero__title,
  .contact__title { font-size: 15vw; }

  /* Kapealla näytöllä katto jatkuu reunojen yli, jotta logo mahtuu päädyn sisään */
  .footer__gable-inner { aspect-ratio: 1000 / 619; }
  .footer__roof { inset: 0 auto auto 50%; width: 170%; height: auto; transform: translateX(-50%); }
  .footer__logo { width: 46%; bottom: 8%; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 4px 32px; }
  .footer__sep { display: none; }
  .footer__id { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
}