/* PPerformance – sivuston tyylit
   Värit ja fontit on koottu tähän alkuun (:root). Muuta värejä vain täältä. */

:root {
  --bg: #0f1216;          /* sivun tausta, sinertävä musta */
  --bg-raised: #171c22;   /* kortit ja paneelit */
  --bg-sunk: #0b0d10;     /* lomakekentät ja alatunniste */
  --line: #262d36;        /* reunaviivat */
  --line-strong: #3a4450;
  --text: #eef1f4;        /* leipäteksti */
  --muted: #9ba5b1;       /* toissijainen teksti */
  --error: #ff9b8f;
  --ok: #a6d8a9;

  /* BMW M -värit */
  --m-light: #81c4ff;     /* vaaleansininen: linkit ja korostukset */
  --m-navy: #16588e;      /* tummansininen: vain raidat ja täytöt (liian tumma tekstille) */
  --m-red: #e7222e;       /* punainen: pääpainikkeet, valkoinen teksti */
  --m-red-hover: #c81d27;
  --m-stripe: linear-gradient(90deg, var(--m-light) 0 33.34%, var(--m-navy) 33.34% 66.67%, var(--m-red) 66.67% 100%);

  --accent: var(--m-light);  /* linkit, fokus, aktiivinen valikko */
  --accent-hover: #a9d6ff;
  --accent-ink: #0f1a26;     /* teksti korostusvärin päällä */

  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Bahnschrift", "DIN Alternate", "Roboto Condensed", "Arial Narrow", system-ui, sans-serif;

  --wrap: 72rem;
  --gutter: clamp(1.1rem, 4vw, 2rem);
  --radius: 2px;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
}

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

a { color: var(--accent); text-underline-offset: 0.2em; }
a:hover { color: var(--accent-hover); }

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 0.6em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.3rem, 6vw, 3.8rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; max-width: 68ch; }

.lead { font-size: 1.15rem; color: var(--text); max-width: 60ch; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

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

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

.skip {
  position: absolute; left: 1rem; top: -3rem; z-index: 10;
  background: var(--accent); color: var(--accent-ink); padding: 0.5rem 1rem;
}
.skip:focus { top: 1rem; }

/* ---------- Ylätunniste ---------- */

.site-header {
  position: sticky; top: 0; z-index: 5;
  background: rgba(15, 18, 22, 0.96);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 4rem;
}

.brand {
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--text); text-decoration: none;
  font-family: var(--font-display); font-stretch: condensed;
  font-weight: 700; font-size: 1.35rem; letter-spacing: 0.01em;
}
.brand-mark {
  display: inline-grid; place-items: center;
  width: 2.1rem; height: 2.1rem;
  border: 2px solid var(--accent); border-radius: var(--radius);
  color: var(--accent); font-size: 1rem;
}
.brand:hover { color: var(--text); }

.nav-toggle {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: none; border: 1px solid var(--line-strong); border-radius: var(--radius);
  color: var(--text); font: inherit; padding: 0.4rem 0.75rem; cursor: pointer;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  display: block; width: 1.1rem; height: 2px; background: currentColor; position: relative;
}
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bars::before { top: -6px; }
.nav-toggle-bars::after { top: 6px; }

.site-nav { display: none; }
.site-nav.is-open {
  display: block; position: absolute; left: 0; right: 0; top: 100%;
  background: var(--bg); border-bottom: 1px solid var(--line);
  padding: 0.5rem var(--gutter) 1.25rem;
}
.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav li a {
  display: block; padding: 0.75rem 0; color: var(--text); text-decoration: none;
  border-bottom: 1px solid var(--line); font-weight: 500;
}
.site-nav a[aria-current="page"] { color: var(--accent); }

.lang-switch { display: flex; gap: 0.25rem; margin-top: 1rem; }
.lang-switch a, .lang-switch span {
  padding: 0.3rem 0.6rem; border-radius: var(--radius);
  font-size: 0.875rem; font-weight: 600; text-decoration: none;
}
.lang-switch span { background: var(--bg-raised); color: var(--text); }
.lang-switch a { color: var(--muted); border: 1px solid var(--line); }
.lang-switch a:hover { color: var(--text); border-color: var(--line-strong); }

@media (min-width: 52rem) {
  .nav-toggle { display: none; }
  .site-nav, .site-nav.is-open {
    display: flex; align-items: center; gap: 1.5rem;
    position: static; padding: 0; border: 0; background: none;
  }
  .site-nav ul { display: flex; gap: 1.5rem; }
  .site-nav li a { border: 0; padding: 0.25rem 0; }
  .site-nav li a:hover { color: var(--accent); }
  .lang-switch { margin-top: 0; }
}

/* ---------- Painikkeet ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 2.9rem; padding: 0.6rem 1.3rem;
  border-radius: var(--radius); border: 1px solid transparent;
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hover); color: var(--accent-ink); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); }
.btn-ghost:hover { border-color: var(--text); color: var(--text); }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }

/* ---------- Etusivun kuva ja Tietoa ---------- */

.hero { position: relative; background: #000; }
.hero img {
  width: 100%; height: clamp(15rem, 52vw, 34rem);
  object-fit: cover; object-position: 40% 55%;
}

.about { position: relative; }
.about-panel {
  background: var(--bg);
  margin-top: -3.5rem;
  padding: 1.75rem var(--gutter) 0;
  margin-left: calc(var(--gutter) * -1);
  margin-right: calc(var(--gutter) * -1);
}
@media (min-width: 60rem) {
  .about-panel { margin-right: 0; max-width: 44rem; }
}
@media (min-width: 52rem) {
  .about-panel { margin-top: -6rem; padding-top: 2.5rem; }
}

.about-grid { display: grid; gap: 2.5rem; }
@media (min-width: 60rem) {
  .about-grid { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); align-items: start; }
}

.services { margin: 0; border-top: 1px solid var(--line); }
.services div { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.services dt { font-weight: 700; margin-bottom: 0.2rem; }
.services dd { margin: 0; color: var(--muted); }

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

.section { padding: clamp(3rem, 8vw, 5.5rem) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { margin-bottom: 2rem; }
.section-head p { color: var(--muted); }

.page-head { padding-top: clamp(2.5rem, 7vw, 4.5rem); padding-bottom: 0.5rem; }
.page-head + .section { padding-top: clamp(1.5rem, 4vw, 2.5rem); }

.breadcrumb { font-size: 0.875rem; color: var(--muted); margin-bottom: 1.25rem; }
.breadcrumb ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.breadcrumb li + li::before { content: "/"; margin-right: 0.4rem; color: var(--line-strong); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--text); }

/* ---------- Moottorikortit (sivun tunnuselementti) ---------- */

.engine-grid {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 0.75rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 10rem), 1fr));
}
@media (min-width: 40rem) {
  .engine-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.engine-card {
  display: flex; flex-direction: column; height: 100%;
  padding: 1.1rem 1.1rem 1rem;
  background: var(--bg-raised);
  border: 1px solid var(--line); border-radius: var(--radius);
  color: var(--text); text-decoration: none;
}
.engine-card:hover { border-color: var(--accent); color: var(--text); }
.engine-code {
  font-family: var(--font-display); font-stretch: condensed; font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 3.8rem); line-height: 0.95; letter-spacing: -0.02em;
}
.engine-code small { display: block; font-size: 0.42em; line-height: 1.3; color: var(--muted); letter-spacing: 0; }
@media (min-width: 40rem) {
  .engine-code small { display: inline; margin-left: 0.15em; }
}
.engine-desc { color: var(--muted); font-size: 0.9rem; margin: 0.5rem 0 1rem; }
.engine-price {
  margin-top: auto; padding-top: 0.75rem; border-top: 1px solid var(--line);
  font-size: 0.9rem; font-weight: 600;
}
.engine-card:hover .engine-price { color: var(--accent); }

/* ---------- Tuotteet ---------- */

.product-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }
@media (min-width: 40rem) { .product-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.product {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1rem 1.1rem; background: var(--bg-raised);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.product h3 { margin: 0 0 0.15rem; font-size: 1.1rem; }
.product p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.product a { white-space: nowrap; font-weight: 600; }
@media (max-width: 30rem) {
  .product { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

/* ---------- Vaiheet ---------- */

.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 1.5rem; }
@media (min-width: 52rem) { .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.steps li { counter-increment: step; border-top: 2px solid var(--line-strong); padding-top: 0.75rem; }
.steps li::before {
  content: counter(step);
  display: block; font-family: var(--font-display); font-stretch: condensed;
  font-weight: 700; font-size: 2.2rem; line-height: 1; color: var(--accent); margin-bottom: 0.5rem;
}
.steps h3 { font-size: 1.1rem; margin-bottom: 0.3rem; }
.steps p { color: var(--muted); font-size: 0.95rem; margin: 0; }

/* ---------- Moottorisivu ---------- */

.engine-layout { display: grid; gap: 2.5rem; }
@media (min-width: 60rem) {
  .engine-layout { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); align-items: start; }
}

.panel {
  background: var(--bg-raised); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.4rem;
}
.panel h2 { font-size: 1.5rem; }

.price-table { width: 100%; border-collapse: collapse; margin-bottom: 0.75rem; }
.price-table th, .price-table td {
  text-align: left; padding: 0.6rem 0; border-bottom: 1px solid var(--line); vertical-align: top;
}
.price-table th { font-weight: 500; }
.price-table td { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; padding-left: 1rem; }

.car-groups { display: grid; gap: 1.5rem; }
@media (min-width: 40rem) { .car-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.car-list { list-style: none; margin: 0; padding: 0; }
.car-list li { padding: 0.45rem 0; border-bottom: 1px solid var(--line); }
.car-list .code { color: var(--muted); }

.note {
  border-left: 3px solid var(--accent); padding: 0.75rem 1rem; margin: 1.5rem 0;
  background: var(--bg-raised); max-width: 68ch;
}
.note p:last-child { margin-bottom: 0; }

.engine-nav { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.engine-nav a {
  display: inline-block; padding: 0.35rem 0.8rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  color: var(--text); text-decoration: none; font-weight: 600;
}
.engine-nav a:hover, .engine-nav a[aria-current="page"] { border-color: var(--accent); color: var(--accent); }

/* ---------- Tekstisivut (ehdot, tietosuoja) ---------- */

.prose { max-width: 70ch; }
.prose h2 { font-size: 1.6rem; margin-top: 2.2rem; }
.prose h3 { margin-top: 1.6rem; }
.prose ul { padding-left: 1.2rem; }
.prose li { margin-bottom: 0.35rem; }
.prose blockquote { margin: 1rem 0; padding-left: 1rem; border-left: 3px solid var(--line-strong); color: var(--muted); }

/* Tekstisivut (tietosuoja, ehdot): leveämpi teksti ja sisällysluettelo vieressä leveällä näytöllä */
.text-layout { display: grid; gap: 2.5rem; }
.text-layout .prose { max-width: 46rem; }
.text-layout .prose p, .text-layout .prose li { max-width: none; }
.text-layout .prose h2 {
  text-transform: none; letter-spacing: 0;
  font-size: 1.35rem; margin-top: 2.4rem; scroll-margin-top: 5.5rem;
}
.toc { display: none; }
@media (min-width: 60rem) {
  .text-layout { grid-template-columns: 15rem minmax(0, 46rem); gap: 4rem; align-items: start; }
  .toc { display: block; position: sticky; top: 6rem; }
}
.toc-title {
  margin: 0 0 0.75rem; color: var(--muted);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
}
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.toc a {
  display: block; margin-left: -2px; padding: 0.35rem 0 0.35rem 1rem;
  border-left: 2px solid transparent; color: var(--muted); font-size: 0.95rem; text-decoration: none;
}
.toc a:hover { color: var(--text); border-left-color: var(--accent); }

/* ---------- Yhteystiedot ja lomake ---------- */

.contact-layout { display: grid; gap: 2.5rem; }
@media (min-width: 60rem) {
  .contact-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); align-items: start; }
}

.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
.contact-list .label { display: block; color: var(--muted); font-size: 0.875rem; }
.contact-list a { color: var(--text); font-weight: 600; font-size: 1.1rem; }
.contact-list a:hover { color: var(--accent); }

.form { display: grid; gap: 1.1rem; }
.form-row { display: grid; gap: 1.1rem; }
@media (min-width: 40rem) { .form-row { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.field label { display: block; font-weight: 600; margin-bottom: 0.35rem; }
.field .req { color: var(--muted); font-weight: 400; font-size: 0.875rem; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--text);
  background: var(--bg-sunk); border: 1px solid var(--line-strong); border-radius: var(--radius);
  padding: 0.7rem 0.8rem; min-height: 2.9rem;
}
.field textarea { min-height: 9rem; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent);
}
.field [aria-invalid="true"] { border-color: var(--error); }
.field-error { color: var(--error); font-size: 0.875rem; margin: 0.3rem 0 0; min-height: 0; }

.hp-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.form-status { padding: 0.8rem 1rem; border-radius: var(--radius); margin: 0; max-width: none; }
.form-status:empty { display: none; }
.form-status.is-ok { background: rgba(166, 216, 169, 0.12); color: var(--ok); border: 1px solid rgba(166, 216, 169, 0.4); }
.form-status.is-error { background: rgba(255, 155, 143, 0.1); color: var(--error); border: 1px solid rgba(255, 155, 143, 0.4); }

.form-footnote { font-size: 0.875rem; color: var(--muted); margin: 0; }

/* ---------- Alatunniste ---------- */

.site-footer { border-top: 1px solid var(--line); padding: 2.5rem 0 3rem; background: var(--bg-sunk); font-size: 0.9rem; }
.footer-grid { display: grid; gap: 1.5rem; }
@media (min-width: 52rem) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; } }
.site-footer p { margin: 0 0 0.3rem; color: var(--muted); }
.site-footer strong { color: var(--text); }
.site-footer a { color: var(--text); }
.site-footer a:hover { color: var(--accent); }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 0.3rem; }

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

/* ==========================================================================
   M-tyyli: raidat, punaiset painikkeet, etusivun otsikko
   (värit ovat tiedoston alussa :root-lohkossa)
   ========================================================================== */

/* Ohut M-raita ylätunnisteen yläreunassa */
.site-header::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px;
  background: var(--m-stripe);
}

/* Pääpainikkeet punaisiksi */
.btn-primary { background: var(--m-red); color: #fff; }
.btn-primary:hover { background: var(--m-red-hover); color: #fff; }

/* Moottorikortit: M-raita yläreunaan hiiren alla */
.engine-card { position: relative; overflow: hidden; }
.engine-card::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--m-stripe); opacity: 0; transition: opacity 0.2s;
}
.engine-card:hover, .engine-card:focus-visible { border-color: var(--line-strong); }
.engine-card:hover::before, .engine-card:focus-visible::before { opacity: 1; }

/* ---------- Etusivun otsikko kuvan päällä: PP / ECU / Tuning ---------- */

.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(90deg, rgba(15, 18, 22, 0.88) 0%, rgba(15, 18, 22, 0.5) 45%, rgba(15, 18, 22, 0) 75%);
}
.hero-text { position: absolute; left: 0; right: 0; top: clamp(1.25rem, 5vw, 3.5rem); z-index: 1; }
.hero-eyebrow {
  display: flex; align-items: center; gap: 0.6rem; margin: 0 0 0.6rem;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--m-light);
}
.hero-eyebrow::before { content: ""; width: 1.5rem; height: 2px; background: var(--m-stripe); }
/* Otsikon fontti: Oswald 700 (SIL Open Font License, ks. assets/fonts/OFL-oswald.txt) */
@font-face {
  font-family: "Oswald";
  src: url("/assets/fonts/oswald-700.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
.hero-big {
  margin: 0; color: #fff;
  font-family: "Oswald", var(--font-display); font-weight: 700;
  font-size: clamp(2.65rem, 9.35vw, 6.3rem); line-height: 0.95; letter-spacing: 0;
  text-transform: uppercase;
}
.hero-big em { font-style: normal; color: var(--m-light); }

/* ---------- Ylätunniste, logo, otsikot ---------- */

/* Logo: täytetty tummansininen PP-merkki ja M-raita */
.brand { text-transform: uppercase; letter-spacing: 0.08em; }
.brand-mark { position: relative; overflow: hidden; background: var(--m-navy); border: 0; color: #fff; letter-spacing: 0; }
.brand-mark::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--m-stripe);
}

/* Valikko ja painikkeet: isot kirjaimet, harva välistys */
.site-nav li a { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.82rem; font-weight: 600; }
.btn {
  text-transform: uppercase; letter-spacing: 0.1em;
  font-family: var(--font-display); font-stretch: condensed; font-weight: 700;
}

/* Otsikot isoilla ja lyhyt M-raita alle */
h1, h2 { text-transform: uppercase; letter-spacing: 0.01em; }
.about-panel h1 { font-size: clamp(2rem, 4.4vw, 3rem); }
.section-head h2::after, .page-head h1::after, .contact-layout h2::after {
  content: ""; display: block; width: 3rem; height: 3px; margin-top: 0.6rem;
  background: var(--m-stripe);
}

/* Ankkurilinkit (/#yhteystiedot) eivät jää kiinteän ylätunnisteen alle */
#yhteystiedot, #contact { scroll-margin-top: 4.5rem; }