/* ==========================================================================
   GEODETI — DIZAJN 1 „Blueprint" (svetli tehnički)
   Paleta: #ffffff / #f2f5f9 podloga · #0f3d8a primarna · #1d5fd1 akcenat
   Tekst: #16202e · oštre ivice (0–6px) · tanke 1px linije
   Mobile-first; breakpointi: 720px, 1024px
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Promenljive i reset
   -------------------------------------------------------------------------- */
:root {
  --bg: #ffffff;
  --bg-alt: #f2f5f9;
  --ink: #16202e;
  --ink-soft: #43536a;
  --blue: #0f3d8a;
  --blue-dark: #0c3272;
  --blue-acc: #1d5fd1;
  --line: #d7e0ec;
  --line-strong: #b9c8dd;
  --ok: #1d5b39;
  --ok-bg: #eef7f1;
  --ok-line: #4b9770;
  --err: #8a2c0f;
  --err-bg: #fdf1ec;
  --err-line: #cf7a5c;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 4px;
  --maxw: 1160px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}

h1, h2, h3 { line-height: 1.2; color: var(--ink); }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
a { color: var(--blue-acc); }
svg { display: block; }

section[id] { scroll-margin-top: 84px; }

::selection { background: #cfe0fa; color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--blue-acc);
  outline-offset: 2px;
}

.container {
  width: min(100% - 2.5rem, var(--maxw));
  margin-inline: auto;
}

/* Honeypot — van ekrana */
.hp {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   2. Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  background: var(--blue);
  color: #fff;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border-radius: 2px;
  box-shadow: 0 0 0 3px rgba(29, 95, 209, 0.12);
}

.brand-text { display: grid; line-height: 1.25; }

.brand-name {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.brand-sub {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-soft);
}

/* Desktop navigacija — vidljiva tek od 1024px */
.nav { display: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.header-phone { display: none; }

.hamburger {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.7rem;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink);
  font-family: inherit;
  cursor: pointer;
}

.hamburger-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Mobilni meni */
.mobile-nav {
  display: grid;
  padding: 0.4rem 1.25rem 1rem;
  background: #fff;
  border-top: 1px solid var(--line);
}

.mobile-nav[hidden] { display: none; }

.mobile-nav a {
  padding: 0.7rem 0;
  border-bottom: 1px dashed var(--line);
  text-decoration: none;
  color: var(--ink);
  font-size: 0.96rem;
}

.mobile-nav a:last-child { border-bottom: 0; }

.mobile-nav .mobile-phone {
  color: var(--blue);
  font-weight: 600;
  font-family: var(--mono);
  font-size: 0.9rem;
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
    gap: 1.5rem;
  }
  .nav a {
    text-decoration: none;
    color: var(--ink-soft);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.3rem 0;
    border-bottom: 2px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
  }
  .nav a:hover {
    color: var(--blue-acc);
    border-bottom-color: var(--blue-acc);
  }
  .header-phone {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--blue);
  }
  .header-phone a {
    text-decoration: none;
    color: var(--blue);
    font-family: var(--mono);
    font-size: 0.88rem;
    font-weight: 600;
  }
  .header-phone a:hover { color: var(--blue-acc); }
  .hamburger { display: none; }
  .mobile-nav { display: none; }
}

/* --------------------------------------------------------------------------
   3. Dugmad
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease,
              border-color 0.15s ease, transform 0.15s ease;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #fff;
  color: var(--blue);
  border-color: var(--line-strong);
}

.btn-secondary:hover {
  color: var(--blue-acc);
  border-color: var(--blue-acc);
  transform: translateY(-1px);
}

.btn-block { width: 100%; }

/* --------------------------------------------------------------------------
   4. Hero — milimetarska mreža + topografski list
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 3.5rem 0 4rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff 0%, #f7fafd 100%);
}

/* milimetarska mreža (fina 8px + jača 40px) */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg,   rgba(15, 61, 138, 0.040) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(90deg,  rgba(15, 61, 138, 0.040) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(0deg,   rgba(15, 61, 138, 0.070) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg,  rgba(15, 61, 138, 0.070) 0 1px, transparent 1px 40px);
}

/* kontura terena u pozadini */
.hero-bgline {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 160px;
  opacity: 0.16;
  pointer-events: none;
}

.hero-bgline svg { width: 100%; height: 100%; }

.hero-inner {
  position: relative;
  display: grid;
  gap: 2.75rem;
  align-items: center;
}

.hero-copy { position: relative; min-width: 0; }

.eyebrow {
  display: inline-block;
  margin: 0 0 1rem;
  padding-top: 0.55rem;
  border-top: 2px solid var(--blue-acc);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--blue-acc);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.85rem, 4.5vw, 2.8rem);
  font-weight: 750;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.hero-lead {
  max-width: 36rem;
  font-size: 1.05rem;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.3rem;
  margin: 1.7rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  font-size: 0.84rem;
  color: var(--ink-soft);
  padding-left: 0;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-trust li::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: none;
  border: 1.5px solid var(--blue-acc);
}

/* list tehničkog crteža */
.hero-sheet {
  position: relative;
  max-width: 460px;
  margin-inline: auto;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line-strong);
  box-shadow: 0 14px 34px rgba(15, 61, 138, 0.09);
}

.hero-art { width: 100%; height: auto; }

.art-mono { font-family: var(--mono); }

@media (min-width: 1024px) {
  .hero { padding: 5rem 0 5.5rem; }
  .hero-inner {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 3.5rem;
  }
  .hero-sheet { max-width: none; margin-inline: 0; }
}

/* --------------------------------------------------------------------------
   5. Sekcije — zaglavlja
   -------------------------------------------------------------------------- */
.section { padding: 4rem 0; }

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  max-width: 46rem;
  margin-bottom: 2.2rem;
}

.section-kicker {
  display: inline-block;
  padding-top: 0.55rem;
  border-top: 2px solid var(--blue-acc);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--blue-acc);
}

.section-head h2 {
  margin: 0.55rem 0 0;
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.005em;
}

@media (min-width: 720px) {
  .section { padding: 5rem 0; }
}

/* --------------------------------------------------------------------------
   6. O birou — tekst + činjenične kartice
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  gap: 2.25rem;
}

.about-body p {
  color: var(--ink-soft);
  font-size: 1rem;
  max-width: 40rem;
}

.facts-grid {
  display: grid;
  gap: 0.9rem;
}

.fact-card {
  padding: 1.1rem 1.2rem;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue-acc);
}

.fact-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
  font-weight: 700;
}

.fact-card p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

@media (min-width: 720px) {
  .facts-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 3.5rem;
    align-items: start;
  }
}

/* --------------------------------------------------------------------------
   7. Usluge — 8 kartica (4×2 na desktopu)
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  gap: 1rem;
}

.service-card {
  padding: 1.35rem 1.2rem 1.25rem;
  background: #fff;
  border: 1px solid var(--line);
  border-top: 2px solid var(--line-strong);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.service-card:hover {
  transform: translateY(-2px);
  border-top-color: var(--blue-acc);
  box-shadow: 0 8px 20px rgba(15, 61, 138, 0.08);
}

.service-icon {
  display: block;
  width: 40px;
  height: 40px;
  margin-bottom: 0.9rem;
  color: var(--blue);
}

.service-icon svg { width: 100%; height: 100%; }

.service-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.02rem;
  font-weight: 700;
}

.service-card > p {
  margin: 0 0 0.8rem;
  font-size: 0.875rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

.service-list {
  margin: 0;
  padding: 0.7rem 0 0;
  border-top: 1px dashed var(--line);
  list-style: none;
}

.service-list li {
  position: relative;
  padding: 0.22rem 0 0.22rem 1.15rem;
  font-size: 0.84rem;
  color: var(--ink-soft);
}

.service-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--blue-acc);
}

@media (min-width: 720px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
}

/* --------------------------------------------------------------------------
   8. Saradnja — koraci sa spojnom linijom, mono brojevi
   -------------------------------------------------------------------------- */
.steps {
  position: relative;
  display: grid;
  gap: 1.75rem;
}

/* vertikalna spojna linija (mobilno) */
.steps::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 10px;
  bottom: 10px;
  border-left: 1px dashed var(--line-strong);
}

.step {
  position: relative;
  padding-left: 3.4rem;
}

.step-num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: #fff;
  border: 1px solid var(--blue);
  color: var(--blue);
  font-family: var(--mono);
  font-size: 0.88rem;
  font-weight: 600;
}

.step h3 {
  margin: 0.35rem 0 0.4rem;
  font-size: 1.02rem;
  font-weight: 700;
}

.step p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

@media (min-width: 1024px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  /* horizontalna spojna linija (desktop) */
  .steps::before {
    left: 20px;
    right: 20px;
    top: 20px;
    bottom: auto;
    border-left: 0;
    border-top: 1px dashed var(--line-strong);
  }
  .step {
    padding-left: 0;
    padding-top: 3.3rem;
  }
  .step h3 { margin-top: 0; }
}

/* --------------------------------------------------------------------------
   9. Česta pitanja — stilizovani <details>
   -------------------------------------------------------------------------- */
.faq-list {
  display: grid;
  gap: 0.75rem;
  max-width: 50rem;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
}

.faq-item summary {
  position: relative;
  padding: 1rem 3rem 1rem 1.15rem;
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 1.15rem;
  color: var(--blue-acc);
}

.faq-item[open] summary::after { content: "\2013"; }

.faq-item[open] summary { border-bottom: 1px dashed var(--line); }

.faq-item p {
  margin: 0;
  padding: 0.9rem 1.15rem 1.1rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   10. Kontakt — podaci + mapa + forma
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  gap: 2.5rem;
}

.contact-info { min-width: 0; }

.contact-list {
  display: grid;
  gap: 0.95rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.95rem;
}

.contact-ico {
  width: 20px;
  height: 20px;
  flex: none;
  margin-top: 2px;
  color: var(--blue-acc);
}

.contact-ico svg { width: 100%; height: 100%; }

.contact-label {
  display: block;
  margin-bottom: 2px;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

.contact-list a {
  color: var(--blue);
  text-decoration: none;
}

.contact-list a:hover { text-decoration: underline; }

.map-wrap {
  height: 280px;
  background: var(--bg-alt);
  border: 1px solid var(--line-strong);
}

.map-wrap iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.map-link {
  display: inline-block;
  margin-top: 0.6rem;
  font-size: 0.88rem;
  color: var(--blue-acc);
}

/* Forma */
.contact-form-wrap form {
  padding: 1.75rem 1.5rem;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--blue);
}

.contact-form-wrap h3 {
  margin: 0 0 1.25rem;
  font-size: 1.15rem;
}

.field { margin-bottom: 1.05rem; }

.field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: #fbfdff;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
}

.field textarea { resize: vertical; }

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue-acc);
  box-shadow: 0 0 0 3px rgba(29, 95, 209, 0.15);
}

.form-ok {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--ok-line);
  background: var(--ok-bg);
  color: var(--ok);
  font-size: 0.9rem;
}

.form-ok.err {
  border-color: var(--err-line);
  background: var(--err-bg);
  color: var(--err);
}

.form-note {
  margin: 0.9rem 0 0;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: start;
  }
}

/* --------------------------------------------------------------------------
   11. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding: 2.2rem 0;
  background: #0e2038;
  border-top: 3px solid var(--blue-acc);
  color: #b9c8dd;
  font-size: 0.88rem;
}

.footer-inner { display: grid; gap: 0.45rem; }

.footer-inner p { margin: 0; }

.footer-line,
.footer-contact { line-height: 1.7; }

.site-footer a {
  color: #e6eef9;
  text-decoration: none;
}

.site-footer a:hover { text-decoration: underline; }

.footer-made { color: #8fa3c0; }

.footer-note {
  font-size: 0.8rem;
  color: #8fa3c0;
}

/* --------------------------------------------------------------------------
   12. Reveal na skrol + smanjeno kretanje
   -------------------------------------------------------------------------- */
html.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

html.js .reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn,
  .service-card,
  .nav a {
    transition: none;
  }
  .btn:hover,
  .service-card:hover {
    transform: none;
  }
}