/* ==========================================================================
   alppilan-autokorjaamo — theme: blueprint (trades-industrial, skeleton S2)
   Palette: blueprint blue #1B4B8F · paper #F6F7F4 · pencil graphite #3A4149
            measuring-tape yellow #E8B10E (decorative only — AA text variant
            --accent-text #7A5A00) · graph-grid lines = blue at 6–8 % opacity
   Type:    Space Grotesk (display) / IBM Plex Sans (body) /
            IBM Plex Mono (dimension-style annotations)
   ========================================================================== */

@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("assets/fonts/space-grotesk-var-latin.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 100 700;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-sans-var-latin.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-mono-400-latin.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-mono-500-latin.woff2") format("woff2");
}

:root {
  --blue: #1B4B8F;          /* blueprint blue — 8.0:1 on paper, AA/AAA */
  --blue-deep: #143A70;
  --paper: #F6F7F4;
  --sheet: #FDFDFB;
  --ink: #3A4149;           /* pencil graphite */
  --ink-soft: #5A636C;      /* 5.9:1 on paper — AA */
  --accent: #E8B10E;        /* decorative only as small text */
  --accent-text: #7A5A00;   /* AA-safe yellow for text on paper (5.9:1) */
  --grid-line: rgba(27, 75, 143, 0.07);
  --grid-line-strong: rgba(27, 75, 143, 0.13);
  --grid-line-inv: rgba(246, 247, 244, 0.10);
  --grid-line-inv-strong: rgba(246, 247, 244, 0.18);
  --rule: rgba(58, 65, 73, 0.25);
  --display: "Space Grotesk", "Arial Narrow", sans-serif;
  --body: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "Courier New", monospace;
  --measure: 62ch;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }

body {
  font-family: var(--body);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background-color: var(--paper);
  /* signature move: graph-paper background (fine + coarse grid) */
  background-image:
    linear-gradient(var(--grid-line-strong) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-strong) 1px, transparent 1px),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--blue); color: var(--paper); }

a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--blue-deep); }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  border-radius: 1px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  background: var(--blue);
  color: var(--paper);
  padding: 0.6rem 1rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}
.skip-link:focus-visible { left: 0.5rem; top: 0.5rem; }

/* ------------------------------------------------------------------ draft */

.draft-banner {
  display: block;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-align: center;
  text-decoration: none;
  padding: 0.55rem var(--pad);
}
.draft-banner strong { color: var(--accent); font-weight: 500; }
.draft-banner:hover { color: var(--paper); background: #2A3038; }

/* ----------------------------------------------------- nav: drawing tabs */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 2px solid var(--blue);
  box-shadow: 0 1px 0 rgba(27, 75, 143, 0.12);
}
.nav-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 var(--pad);
  display: flex;
  align-items: stretch;
  gap: 0.25rem;
  min-height: 3.4rem;
}
.nav-mark {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-right: auto;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.nav-mark svg { flex: none; }
.nav-tabs {
  display: flex;
  align-items: flex-end;
  gap: 0.25rem;
  list-style: none;
  overflow-x: auto;
}
.nav-tabs a {
  display: block;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--blue);
  border: 1px solid var(--rule);
  border-bottom: none;
  border-radius: 3px 3px 0 0;
  background: var(--sheet);
  padding: 0.5rem 0.8rem 0.55rem;
  white-space: nowrap;
}
.nav-tabs a:hover { background: var(--blue); color: var(--paper); border-color: var(--blue); }
.nav-phone {
  display: flex;
  align-items: center;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--ink);
  text-decoration: none;
  padding-left: 0.9rem;
  white-space: nowrap;
}
.nav-phone:hover { color: var(--blue); }

/* ------------------------------------------------------------ hero (S2) */

.hero { border-bottom: 1.5px solid var(--blue); }
.hero-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5.5rem) var(--pad) clamp(2.5rem, 6vw, 5rem);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.kicker {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 1.1rem;
}
.kicker .ref { color: var(--accent-text); }

.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 3.9rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 1.2rem;
}
.hero h1 .blue { color: var(--blue); }

.lede {
  max-width: 34rem;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: 1.6rem;
}

.hero-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.6rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 2rem;
}
.hero-facts a { color: inherit; }
.hero-facts a:hover { color: var(--blue); }
.hero-facts li::before { content: "▸ "; color: var(--blue); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.cta {
  display: inline-block;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 0.85rem 1.6rem;
  border: 1.5px solid var(--blue);
  border-radius: 2px;
  background: var(--blue);
  color: var(--paper);
  transition: background-color 140ms ease, color 140ms ease;
}
.cta:hover { background: var(--blue-deep); border-color: var(--blue-deep); color: var(--paper); }
.cta.ghost { background: transparent; color: var(--blue); }
.cta.ghost:hover { background: var(--blue); color: var(--paper); }

/* hero drawing sheet */
.hero-sheet { position: relative; }
.hero-sheet svg {
  display: block;
  width: 100%;
  height: auto;
  border: 1.5px solid var(--blue-deep);
  border-radius: 3px;
  box-shadow: 6px 6px 0 rgba(27, 75, 143, 0.14);
}
.sheet-caption {
  margin-top: 0.7rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  text-align: right;
}

/* -------------------------------------- signature move: dimension strip */

.dim-strip { border-bottom: 1px solid var(--rule); background: var(--sheet); }
.dim-strip-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.6rem var(--pad);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem 2.5rem;
}
.dim {
  position: relative;
  padding-top: 1.15rem;
  text-align: center;
}
/* the measured line with arrowheads */
.dim::before {
  content: "";
  position: absolute;
  top: 0.45rem;
  left: 2px;
  right: 2px;
  border-top: 1.5px solid var(--blue);
}
/* witness ticks at both ends of the measured line */
.dim::after {
  content: "";
  position: absolute;
  top: calc(0.45rem - 4.5px);
  left: 0;
  right: 0;
  height: 10px;
  border-left: 1.5px solid var(--blue);
  border-right: 1.5px solid var(--blue);
  pointer-events: none;
}
.dim-value {
  display: block;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--blue);
  line-height: 1.2;
}
.dim-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 0.15rem;
}

/* ------------------------------------------------------ generic section */

section { scroll-margin-top: 5rem; }
.section-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 5.5rem) var(--pad);
}
.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.split.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.split-head { position: sticky; top: 5rem; }

h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0.5rem 0 1rem;
}
.section-note { color: var(--ink-soft); max-width: 30rem; }

/* -------------------------------------------------- palvelut: detail list */

.detail-list { list-style: none; border-top: 1.5px solid var(--ink); }
.detail-list li {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  gap: 0.4rem 1.4rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--rule);
}
.det-ref {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--accent-text);
  padding-top: 0.3rem;
}
.detail-list h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 0.25rem;
}
.detail-list p { color: var(--ink-soft); font-size: 0.98rem; max-width: 46rem; }
.detail-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-top: 1rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}

/* --------------------------- prosessi: numbered drawing steps (blue band) */

.prosessi {
  background-color: var(--blue);
  background-image:
    linear-gradient(var(--grid-line-inv-strong) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-inv-strong) 1px, transparent 1px),
    linear-gradient(var(--grid-line-inv) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-inv) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
  color: var(--paper);
  border-top: 1.5px solid var(--blue-deep);
  border-bottom: 1.5px solid var(--blue-deep);
}
.prosessi .kicker { color: rgba(246, 247, 244, 0.85); }
.prosessi h2 { color: var(--paper); }
.prosessi .section-note { color: rgba(246, 247, 244, 0.82); }

.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem 1.8rem;
  margin-top: 2.5rem;
}
.steps li { counter-increment: step; border-top: 1.5px solid rgba(246, 247, 244, 0.5); padding-top: 0.9rem; }
.steps li::before {
  content: "0" counter(step);
  display: block;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.2rem, 4vw, 3rem);   /* large text: yellow on blue = 4.4:1, AA-large */
  line-height: 1;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.steps h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}
.steps p { font-size: 0.95rem; color: rgba(246, 247, 244, 0.85); }

/* ------------------------------------------------------------- korjaamo */

.tarina-copy p { max-width: var(--measure); margin-bottom: 1rem; }
.tarina-copy p:last-child { margin-bottom: 0; }

/* ------------------------------------------- liitteet: figures as liite */

.liite-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
  margin-top: 2.2rem;
}
.liite {
  background: var(--sheet);
  border: 1px solid var(--blue);
  border-radius: 3px;
  overflow: hidden;
}
.liite .ph {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 20px 20px, 20px 20px;
}
.liite svg { display: block; width: 100%; height: auto; }
.liite figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--blue);
  padding: 0.55rem 0.85rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}
.liite figcaption .ref { color: var(--blue); font-weight: 500; }

.photo-note {
  margin-top: 1.8rem;
  max-width: 46rem;
  border-left: 3px solid var(--accent);
  background: var(--sheet);
  padding: 0.9rem 1.2rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.photo-note strong { color: var(--ink); }

/* ----------------------------------------------------------- yhteystiedot */

.visit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
}
.visit-block {
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--blue);
  border-radius: 2px;
  padding: 1.1rem 1.25rem 1.25rem;
}
.visit-block h3 {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.6rem;
}
.visit-block p { font-size: 0.98rem; }
.visit-block .small { font-size: 0.88rem; color: var(--ink-soft); margin-top: 0.4rem; }
.hours { border-collapse: collapse; font-variant-numeric: tabular-nums; }
.hours th { text-align: left; font-weight: 500; padding: 0.15rem 1.2rem 0.15rem 0; }
.hours td { font-family: var(--mono); font-size: 0.95rem; }
.text-link { font-weight: 500; }

/* --------------------------------- footer: drawing title block signature */

.footer { border-top: 2px solid var(--ink); background: var(--sheet); }
.title-block {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 var(--pad);
}
.tb-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-left: 1.5px solid var(--ink);
  border-right: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  margin: 2.2rem 0;
  background: var(--paper);
}
.tb-cell {
  border-top: 1.5px solid var(--ink);
  border-right: 1px solid var(--rule);
  padding: 0.6rem 0.85rem 0.75rem;
  min-width: 0;
}
.tb-cell:nth-child(4n) { border-right: none; }
.tb-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.15rem;
}
.tb-value { font-size: 0.92rem; overflow-wrap: break-word; }
.tb-value a { color: var(--blue); }
.footer-meta {
  padding-bottom: 2rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  text-align: center;
}

/* ------------------------------------------------------------ animation */

@media (prefers-reduced-motion: no-preference) {
  .hero-sheet svg .draw {
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    animation: draw 2.2s ease-out 0.2s forwards;
  }
  @keyframes draw { to { stroke-dashoffset: 0; } }
  .cta, .nav-tabs a { transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ------------------------------------------------------------ responsive */

@media (max-width: 60rem) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .liite-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split, .split.flip { grid-template-columns: minmax(0, 1fr); gap: 1.6rem; }
  .split-head { position: static; }
}

@media (max-width: 44rem) {
  .hero-inner { grid-template-columns: minmax(0, 1fr); }
  .dim-strip-inner { grid-template-columns: minmax(0, 1fr); gap: 1.3rem; padding: 1.4rem var(--pad); }
  .nav-mark span { display: none; }
  .visit-grid { grid-template-columns: minmax(0, 1fr); }
  .liite-grid { grid-template-columns: minmax(0, 1fr); }
  .tb-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tb-cell:nth-child(2n) { border-right: none; }
  .detail-list li { grid-template-columns: minmax(0, 1fr); gap: 0.1rem; }
  .det-ref { padding-top: 0; }
}

@media (max-width: 26rem) {
  .steps { grid-template-columns: minmax(0, 1fr); }
  .hero-actions .cta { width: 100%; text-align: center; }
}