/* ==========================================================================
   LR Servis Valjevo — style.css
   Industrial-brutalist aesthetic
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design tokens
   -------------------------------------------------------------------------- */
:root {
  --bg: #0A0A0A;
  --surface: #111111;
  --fg: #EAEAEA;
  --muted: #A0A0A0;
  --green: #1A6B3C;        /* fills only, NEVER text */
  --green-lift: #3DAA63;   /* text/hover, AAA contrast on --bg */
  --red: #E61919;          /* SINGLE USE: ® on hero wordmark only */
  --hairline: rgba(234, 234, 234, 0.12);

  --font-display: 'Archivo Black', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'Courier New', monospace;
  --font-body: system-ui, -apple-system, sans-serif;

  --track-tight: -0.04em;
  --track-mono: 0.08em;
  --track-eyebrow: 0.10em;
}

/* --------------------------------------------------------------------------
   Global reset + base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--muted);
  border-radius: 0;
}
::-webkit-scrollbar-thumb:hover { background: var(--green-lift); }
* { scrollbar-width: thin; scrollbar-color: var(--muted) var(--bg); }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* --------------------------------------------------------------------------
   Skip link
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--green);
  color: var(--fg);
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  z-index: 9999;
}
.skip-link:focus { top: 1rem; }

/* --------------------------------------------------------------------------
   Focus rings (global)
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--green-lift);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   NAV
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 56px;
  background: var(--bg);
  border-bottom: 1px solid var(--hairline);
}
.nav__wordmark {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fg);
}
.nav__links {
  display: flex;
  gap: 2.5rem;
}
.nav__link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--muted);
  transition: color 150ms;
}
.nav__link:hover { color: var(--fg); }
.nav__hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.2em;
  cursor: pointer;
  padding: 0.5rem;
}
@media (max-width: 767px) {
  .nav__links { display: none; }
  .nav__hamburger { display: block; }
}

/* --------------------------------------------------------------------------
   Mobile menu
   -------------------------------------------------------------------------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms;
}
.mobile-menu.is-open {
  opacity: 1;
  pointer-events: all;
}
.mobile-menu__close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.5rem;
  cursor: pointer;
}
.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  text-align: center;
}
.mobile-menu__link {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fg);
}
.mobile-menu__link:hover { color: var(--green-lift); }

/* --------------------------------------------------------------------------
   Section shared
   -------------------------------------------------------------------------- */
.section {
  padding: 6rem 2rem;
  border-bottom: 1px solid var(--hairline);
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.5rem;
}
.section-header {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 9rem);
  letter-spacing: var(--track-tight);
  line-height: 0.9;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.section-subhead {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 3rem;
}

/* --------------------------------------------------------------------------
   HERO
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 56px; /* nav height */
  border-bottom: 1px solid var(--hairline);
  overflow: hidden;
}
/* SVG noise overlay */
.hero__noise {
  position: absolute;
  inset: 0;
  opacity: 0.02;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}
/* Corner blocks */
.hero__corner-tl,
.hero__corner-tr {
  position: absolute;
  top: calc(56px + 2rem);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.8;
}
.hero__corner-tl { left: 2rem; }
.hero__corner-tr {
  right: 2rem;
  text-align: right;
}
.hero__corner-tr a {
  display: block;
  color: var(--fg);
  font-size: 0.875rem;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  transition: color 150ms;
}
.hero__corner-tr a:hover { color: var(--green-lift); }

/* Center */
.hero__center {
  width: 100%;
  padding: 0 2rem;
}
.hero__wordmark {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 11rem);
  letter-spacing: var(--track-tight);
  line-height: 0.88;
  text-transform: uppercase;
  color: var(--fg);
}
.hero__reg {
  color: var(--red);
  font-size: 0.35em;
  vertical-align: super;
  letter-spacing: 0;
}
.hero__wordmark-sub {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.5vw, 6rem);
  letter-spacing: var(--track-tight);
  line-height: 0.88;
  text-transform: uppercase;
  color: var(--fg);
  margin-top: 0.25rem;
  margin-left: clamp(2rem, 8vw, 10rem); /* asymmetric offset */
}
.hero__cross {
  color: var(--muted);
  margin: 0 0.25em;
}
.hero__tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 2rem;
}

/* Bottom corners */
.hero__bottom-l,
.hero__bottom-r {
  position: absolute;
  bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
}
.hero__bottom-l { left: 2rem; }
.hero__bottom-r { right: 2rem; }
.hero__scroll-hint {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
}
.hero__status-dot {
  color: var(--green-lift);
}

/* Mobile hero */
@media (max-width: 767px) {
  .hero__corner-tr { display: none; } /* phones shown in hero__center on mobile */
  .hero__wordmark-sub { margin-left: 1rem; }
}

/* --------------------------------------------------------------------------
   OPREMA (marquee)
   -------------------------------------------------------------------------- */
.oprema {
  padding: 0;
  overflow: hidden;
  border-bottom: 2px solid var(--hairline);
}
.oprema .section-eyebrow {
  padding: 1.5rem 2rem 0.5rem;
}
.marquee-wrapper {
  display: flex;
  flex-direction: column;
  border-top: 2px solid var(--hairline);
}
.marquee {
  overflow: hidden;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--hairline);
  cursor: default;
}
.marquee:last-child { border-bottom: none; }
.marquee__track {
  display: flex;
  width: max-content;
  min-width: 200%;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.marquee--forward .marquee__track {
  animation: marquee-forward 30s linear infinite;
}
.marquee--reverse .marquee__track {
  animation: marquee-reverse 30s linear infinite;
}
.marquee:hover .marquee__track,
.marquee.paused .marquee__track {
  animation-play-state: paused;
}
@keyframes marquee-forward {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes marquee-reverse {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}
@media (max-width: 767px) {
  .marquee--forward .marquee__track { animation-duration: 45s; }
  .marquee--reverse .marquee__track { animation-duration: 45s; }
}
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation-play-state: paused !important; }
}

/* --------------------------------------------------------------------------
   USLUGE (OEM catalog grid)
   -------------------------------------------------------------------------- */
.usluge {
  padding-bottom: 0;
}
.usluge__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--hairline);
  margin-top: 3rem;
}
.usluge__cell {
  background: var(--bg);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  transition: background 150ms;
  cursor: default;
}
.usluge__cell::before {
  content: '+';
  position: absolute;
  top: -0.5em;
  left: -0.4em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--hairline);
  pointer-events: none;
  transition: color 150ms;
}
/* Green status pixel on hover */
.usluge__cell::after {
  content: '';
  position: absolute;
  top: 1rem;
  left: 1rem;
  width: 4px;
  height: 4px;
  background: var(--green-lift);
  opacity: 0;
  transition: opacity 150ms;
}
.usluge__cell:hover {
  background: var(--surface);
  outline: 1px solid var(--green-lift);
  outline-offset: -1px;
}
.usluge__cell:hover::after { opacity: 1; }
.usluge__cell:hover .usluge__code { color: var(--green-lift); }

.usluge__cell-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}
.usluge__code {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  transition: color 150ms;
}
.usluge__pn {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.05em;
  color: var(--muted);
  opacity: 0.6;
  white-space: nowrap;
}
.usluge__name {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  color: var(--fg);
  line-height: 1;
}
.usluge__desc {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.5;
  flex: 1;
}
.usluge__cta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--muted);
  margin-top: auto;
  transition: color 150ms;
  min-height: 44px;
  display: flex;
  align-items: flex-end;
}
.usluge__cta:hover { color: var(--green-lift); }

@media (max-width: 767px) {
  .usluge__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 519px) {
  .usluge__grid { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   MODELI
   -------------------------------------------------------------------------- */
.modeli__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--hairline);
  margin-top: 2rem;
  margin-bottom: 1.5rem;
}
.modeli__cell {
  background: var(--bg);
  padding: 2rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  transition: background 150ms, color 150ms;
  cursor: default;
}
.modeli__cell:hover {
  background: var(--fg);
  color: var(--bg);
}
.modeli__cell h3 {
  font-family: var(--font-display);
  font-size: clamp(0.875rem, 2vw, 1.125rem);
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  line-height: 1;
  text-align: center;
}
.modeli__years {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 1rem;
}
@media (max-width: 767px) {
  .modeli__grid { grid-template-columns: repeat(2, 1fr); }
}

/* --------------------------------------------------------------------------
   RADIONICA (data sheet)
   -------------------------------------------------------------------------- */
.radionica__sheet {
  border: 1px solid var(--hairline);
  padding: 2rem;
  margin-top: 2rem;
  max-width: 800px;
}
.radionica__sheet-header {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--hairline);
}
.radionica__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.625rem 0;
  border-bottom: 1px dotted var(--hairline);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.radionica__row:last-child { border-bottom: none; }
.radionica__label { color: var(--muted); flex-shrink: 0; }
.radionica__value { color: var(--fg); text-align: right; }

/* --------------------------------------------------------------------------
   ZAŠTO MI
   -------------------------------------------------------------------------- */
.zasto__blocks {
  margin-top: 2rem;
}
.zasto__block {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
  padding: 2rem 0;
  border-top: 1px solid var(--hairline);
}
.zasto__block:last-child { border-bottom: 1px solid var(--hairline); }
.zasto__code {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  min-width: 120px;
  padding-top: 0.25rem;
  flex-shrink: 0;
}
.zasto__content { flex: 1; }
.zasto__title {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.375rem);
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 0.5rem;
}
.zasto__body {
  font-size: 0.9375rem;
  color: var(--muted);
  line-height: 1.6;
}
@media (max-width: 767px) {
  .zasto__block { flex-direction: column; gap: 1rem; }
}

/* --------------------------------------------------------------------------
   KONTAKT
   -------------------------------------------------------------------------- */
.kontakt {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.kontakt__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}
.kontakt__left {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.kontakt__phone-block {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.kontakt__tel-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
}
.kontakt__number {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 3.5rem);
  letter-spacing: var(--track-tight);
  color: var(--fg);
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: color 150ms;
  line-height: 1;
}
.kontakt__number:hover { color: var(--green-lift); }
.kontakt__divider {
  height: 1px;
  background: var(--hairline);
}
.kontakt__cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.kontakt__cta-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fg);
  border: 1px solid var(--hairline);
  padding: 0.875rem 1.25rem;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: border-color 150ms, color 150ms;
}
.kontakt__cta-btn:hover {
  border-color: var(--green-lift);
  color: var(--green-lift);
}
.kontakt__address {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--muted);
  line-height: 2;
  font-style: normal;
}
.kontakt__termin {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--muted);
}
.kontakt__right {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.kontakt__map-frame {
  flex: 1;
  min-height: 350px;
  border: 1px solid var(--hairline);
  overflow: hidden;
}
.kontakt__map-frame iframe {
  width: 100%;
  height: 100%;
  min-height: 350px;
  border: none;
  filter: grayscale(1) contrast(1.1);
  display: block;
}
.kontakt__map-caption {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
}
@media (max-width: 767px) {
  .kontakt__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.footer {
  padding: 3rem 2rem 2rem;
  border-top: 1px solid var(--hairline);
}
.footer__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
}
.footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--muted);
}
.footer__brand {
  color: var(--fg);
  font-size: 0.875rem;
}
.footer__col-label {
  color: var(--fg);
  margin-bottom: 0.25rem;
}
.footer__link {
  color: var(--muted);
  transition: color 150ms;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.footer__link:hover { color: var(--fg); }
.footer__rev {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: var(--track-eyebrow);
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0.5;
  padding-top: 1.5rem;
  border-top: 1px solid var(--hairline);
}
@media (max-width: 767px) {
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
}

/* --------------------------------------------------------------------------
   STICKY MOBILE BAR
   -------------------------------------------------------------------------- */
.sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 150;
  height: 56px;
  background: var(--bg);
  border-top: 1px solid var(--hairline);
  padding-bottom: env(safe-area-inset-bottom);
}
@media (max-width: 767px) {
  .sticky-bar { display: flex; }
  /* Push footer up so it's not hidden behind bar */
  .footer { padding-bottom: calc(56px + env(safe-area-inset-bottom) + 1rem); }
}
.sticky-bar__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--fg);
  border-right: 1px solid var(--hairline);
  min-height: 56px;
  transition: background 150ms, color 150ms;
}
.sticky-bar__btn:last-child { border-right: none; }
.sticky-bar__btn:hover, .sticky-bar__btn:active {
  background: var(--surface);
  color: var(--green-lift);
}

/* --------------------------------------------------------------------------
   Section reveal animations
   -------------------------------------------------------------------------- */
/* Reveal targets — set by JS adding .revealed class */
.reveal-target {
  clip-path: inset(0 100% 0 0);
  transition: clip-path 600ms cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-target.revealed {
  clip-path: inset(0 0 0 0);
}
/* Stagger via CSS custom property set by JS or data-index */
.reveal-target:nth-child(1) { transition-delay: 0ms; }
.reveal-target:nth-child(2) { transition-delay: 80ms; }
.reveal-target:nth-child(3) { transition-delay: 160ms; }
.reveal-target:nth-child(4) { transition-delay: 240ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal-target {
    clip-path: none;
    opacity: 0;
    transition: opacity 300ms;
  }
  .reveal-target.revealed { opacity: 1; }
}

/* --------------------------------------------------------------------------
   Responsive padding adjustments
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  .section { padding: 4rem 1.25rem; }
  .nav { padding: 0 1.25rem; }
  .hero__corner-tl { left: 1.25rem; top: calc(56px + 1rem); }
  .hero__center { padding: 0 1.25rem; }
  .hero__bottom-l { left: 1.25rem; bottom: 1.25rem; }
  .hero__bottom-r { right: 1.25rem; bottom: 1.25rem; }
  .footer { padding: 2rem 1.25rem; }
}