/* =========================================================
   EOLTEC — design tokens
   Palette ripresa dal logo: grigio acciaio + rosso segnale
   su un fondo grafite. Il filo conduttore visivo è la "linea
   di corda" verticale con i nodi di ancoraggio: lo stesso
   principio che i tecnici rope-access usano per lavorare in
   sicurezza sulle pale, qui usato per scandire le sezioni.
   ========================================================= */

:root {
  --bg: #14171a;
  --bg-alt: #1b1f23;
  --bg-card: #20252a;
  --line: #2c3238;
  --steel: #5b636b;
  --silver: #9aa1a7;
  --off-white: #ededea;
  --white: #fafaf8;
  --red: #b4232b;
  --red-bright: #d5303a;

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --max-w: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--off-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--white);
  margin: 0;
}

h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); line-height: 1.05; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); line-height: 1.15; }
h3 { font-size: 1.15rem; letter-spacing: 0.06em; }

p { margin: 0 0 1em; color: var(--silver); max-width: 60ch; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red-bright);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--red-bright);
  display: inline-block;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.6rem;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(20, 23, 26, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 92px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand img { height: 52px; width: auto; }

nav.primary { display: flex; gap: 2.1rem; }

nav.primary a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--silver);
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

nav.primary a:hover,
nav.primary a[aria-current="page"] {
  color: var(--white);
  border-color: var(--red);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--off-white);
  width: 42px;
  height: 42px;
  border-radius: 4px;
  font-size: 1.1rem;
  cursor: pointer;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-left: 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.lang-switch a {
  color: var(--steel);
  padding: 0.2rem 0.4rem;
  transition: color 0.2s ease;
}

.lang-switch a:hover { color: var(--off-white); }

.lang-switch a.is-active {
  color: var(--white);
  border-bottom: 2px solid var(--red);
}

.lang-switch .sep { color: var(--line); }

@media (max-width: 760px) {
  .lang-switch { margin-left: 0.8rem; }
}

@media (max-width: 760px) {
  nav.primary {
    position: absolute;
    top: 92px;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    display: none;
  }
  nav.primary.open { display: flex; }
  nav.primary a {
    padding: 1rem 1.6rem;
    border-bottom: 1px solid var(--line);
    border-left: 2px solid transparent;
  }
  nav.primary a:hover,
  nav.primary a[aria-current="page"] {
    border-left-color: var(--red);
    border-bottom-color: var(--line);
  }
  .nav-toggle { display: block; }
}

/* ---------- the anchor line (signature element) ---------- */

.route {
  position: relative;
  padding-left: 2.6rem;
}

.route::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: repeating-linear-gradient(
    to bottom,
    var(--steel) 0,
    var(--steel) 4px,
    transparent 4px,
    transparent 9px
  );
}

.anchor {
  position: absolute;
  left: 0;
  top: 0;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 2px solid var(--red);
  background: var(--bg);
}

.anchor::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--red);
  opacity: 0.5;
}

@media (max-width: 640px) {
  .route { padding-left: 1.9rem; }
  .anchor { width: 12px; height: 12px; }
  .route::before { left: 5px; }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding: 5.5rem 0 6rem;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-logo {
  position: absolute;
  right: -3%;
  top: 50%;
  transform: translateY(-50%);
  width: 46%;
  max-width: 560px;
  min-width: 260px;
  opacity: 0.92;
  z-index: 0;
  pointer-events: none;
}

@media (max-width: 900px) {
  .hero-logo { display: none; }
}

.hero .wrap { position: relative; z-index: 1; }

/* ---------- photo treatment ---------- */

.photo-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-card);
}

.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: contrast(1.08) saturate(0.88);
}

.photo-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(20,23,26,0) 45%, rgba(20,23,26,0.6) 100%),
    linear-gradient(100deg, rgba(180,35,43,0.14), transparent 55%);
  pointer-events: none;
}

.photo-frame .cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.8rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--off-white);
  z-index: 1;
}

.hero-photo-desktop {
  position: absolute;
  right: 1.6rem;
  top: 1.6rem;
  bottom: 1.6rem;
  width: 40%;
  min-width: 300px;
  border-radius: 4px;
  overflow: hidden;
}

.hero-photo-desktop .photo-frame {
  height: 100%;
  border: 1px solid var(--line);
}

@media (max-width: 900px) {
  .hero-photo-desktop { display: none; }
}

@media (min-width: 901px) {
  .hero-photo-page .wrap { padding-right: 42%; }
}

.hero-photo-mobile { display: none; }

.hero-photo-mobile .photo-frame {
  aspect-ratio: 4 / 3;
  margin-top: 2.2rem;
}

@media (max-width: 900px) {
  .hero-photo-mobile { display: block; }
}

.service-row .photo-frame {
  aspect-ratio: 1 / 1;
  align-self: start;
}

@media (max-width: 700px) {
  .service-row .photo-frame { aspect-ratio: 16 / 10; }
}

/* variant: full-width panoramic photo (e.g. before/after comparisons) */

.service-row--wide {
  grid-template-columns: 120px 1fr;
  column-gap: 1.6rem;
  row-gap: 1rem;
}

.service-row--wide .service-title { grid-column: 2; align-self: center; }

.photo-frame--wide {
  grid-column: 1 / -1;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.photo-frame--wide + .photo-frame--wide { margin-top: -0.4rem; }

.photo-frame--compact {
  max-width: 189px;
}

.service-row--wide p { grid-column: 1 / -1; }

@media (max-width: 700px) {
  .service-row--wide { grid-template-columns: 100px 1fr; }
  .photo-frame--wide { max-width: 220px; }
}

.hero .eyebrow { margin-bottom: 1.4rem; }

.hero h1 { max-width: 15ch; margin-bottom: 1.4rem; }

.hero .lede {
  font-size: 1.12rem;
  max-width: 46ch;
  color: var(--off-white);
}

.hero-actions {
  margin-top: 2.2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.95rem 1.5rem;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-bright); transform: translateY(-1px); }

.btn-ghost { border-color: var(--line); color: var(--off-white); }
.btn-ghost:hover { border-color: var(--silver); }

/* ---------- sections ---------- */

section { padding: 4.6rem 0; }
section + section { border-top: 1px solid var(--line); }
.bg-alt { background: var(--bg-alt); }

.section-head { max-width: 62ch; margin-bottom: 2.6rem; }
.section-head .eyebrow { margin-bottom: 1rem; }
.section-head p { margin-top: 0.9rem; }

/* ---------- service list ---------- */

.service-list { display: grid; gap: 0; }

.service-row {
  position: relative;
  display: grid;
  grid-template-columns: 158px 1fr 1.9fr;
  gap: 1.6rem;
  align-items: start;
  padding: 2.1rem 0;
  border-top: 1px solid var(--line);
}

.service-row:last-child { border-bottom: 1px solid var(--line); }

.service-row .anchor { top: 2.6rem; }

.service-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--white);
}

.service-title small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--silver);
  text-transform: none;
  margin-top: 0.4rem;
}

@media (max-width: 700px) {
  .service-row { grid-template-columns: 132px 1fr; gap: 1rem 1.1rem; }
  .service-row .service-title { grid-column: 2; }
  .service-row p { grid-column: 1 / -1; }
}

/* mantiene la dimensione precedente solo per la riga appena sostituita (Riparazioni) */
.service-row--original {
  grid-template-columns: 144px 1fr 1.9fr;
}

@media (max-width: 700px) {
  .service-row--original { grid-template-columns: 120px 1fr; }
}

/* ---------- cards ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

@media (max-width: 900px) {
  .card-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .card-grid { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.8rem;
}

.card .num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--red-bright);
  letter-spacing: 0.1em;
}

.card h3 { margin-top: 0.7rem; margin-bottom: 0.6rem; color: var(--white); }
.card p { margin: 0; font-size: 0.94rem; }

/* ---------- about / split ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 800px) {
  .split { grid-template-columns: 1fr; gap: 2rem; }
}

.figure-panel {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 2rem;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.stat-row:first-child { border-top: none; }
.stat-row span:first-child { color: var(--silver); }
.stat-row span:last-child { color: var(--white); }

/* ---------- CTA band ---------- */

.cta-band {
  background: linear-gradient(135deg, #1c2024, #14171a 60%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cta-band .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.6rem;
}

.cta-band h2 { max-width: 20ch; }

/* ---------- contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
}

@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-item {
  display: block;
  padding: 1.3rem 0;
  border-top: 1px solid var(--line);
}
.contact-item:last-child { border-bottom: 1px solid var(--line); }

.contact-item .eyebrow { display: block; margin-bottom: 0.5rem; }

.contact-item .value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--white);
  text-transform: none;
  transition: color 0.2s ease;
}

a.contact-item:hover .value { color: var(--red-bright); }

/* ---------- footer ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 2.6rem 0;
}

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

footer .brand img { height: 34px; opacity: 0.9; }

footer small {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
  letter-spacing: 0.04em;
}

/* ---------- utility ---------- */

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, nav.primary a, a.contact-item .value { transition: none; }
}