/* ========================================
   A-KOD – style.css
   Dark professional IT consulting theme
   ======================================== */

/* ---- RESET & BASE ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary:    #0D1117;
  --bg-secondary:  #161B22;
  --bg-card:       #1C2128;
  --accent:        #2563EB;
  --accent-hover:  #1D4ED8;
  --accent-glow:   rgba(37,99,235,0.15);
  --text-primary:  #F0F6FC;
  --text-secondary:#8B949E;
  --text-muted:    #484F58;
  --border:        rgba(240,246,252,0.08);
  --border-hover:  rgba(37,99,235,0.4);
  --gradient:      linear-gradient(135deg, #2563EB, #7C3AED);
  --font:          'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius:        12px;
  --radius-sm:     8px;
  --transition:    0.25s ease;
  --shadow:        0 4px 24px rgba(0,0,0,0.4);
  --shadow-card:   0 2px 12px rgba(0,0,0,0.3);
}

html {
  scroll-behavior: smooth;
  /* da anchor skokovi (#contact itd.) ne završe ispod fixed navbar-a */
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section--dark { background: var(--bg-secondary); }

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(37,99,235,0.3);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}
.section-header h2 { margin-bottom: 16px; }
.section-header p {
  color: var(--text-secondary);
  font-size: 17px;
}

/* ---- ACCESSIBILITY: focus ring ---- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(36px, 6vw, 72px); }
h2 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 20px; }
h3 { font-size: 20px; margin-bottom: 12px; }
p  { color: var(--text-secondary); font-size: 16px; line-height: 1.7; }

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,99,235,0.35);
}
.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn--full { width: 100%; }

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  transition: all var(--transition);
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: rgba(13,17,23,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 32px;
}
.navbar__logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  flex-shrink: 0;
}
.navbar__logo span { color: var(--accent); }

.navbar__links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-link {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}
.navbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.lang-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.05em;
}
.lang-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.nav-cta {
  background: var(--accent);
  color: #fff;
  border: none;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}
.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* Hamburger -> X animacija (JS toggle .active) */
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
}
.hero__title {
  margin-bottom: 28px;
  line-height: 1.1;
}
.hero__sub {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero__cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* NEW: credibility strip */
.hero__credibility {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: var(--text-secondary);
}
.hero__credibility span {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 20px;
}

/* NEW: quick contact */
.hero__quick-contact {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-muted);
}
.hero__quick-contact a {
  color: var(--accent);
  margin-left: 6px;
}

/* ---- ABOUT ---- */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about__content h2 { margin-top: 12px; }
.about__content p  { margin-bottom: 16px; }
.about__content .btn { margin-top: 8px; }
.about__cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 8px;
}
.about__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  will-change: transform;
}
.about__card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.about__card-icon {
  font-size: 28px;
  margin-bottom: 14px;
}
.about__card h3 { font-size: 17px; color: var(--text-primary); }
.about__card p  { font-size: 14px; margin: 0; }

/* ---- PROBLEMS (NEW) ---- */
.problems__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.problem {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: var(--radius);
  transition: all var(--transition);
  will-change: transform;
}
.problem:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.problem h3 {
  font-size: 17px;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.problem p {
  font-size: 14px;
  line-height: 1.65;
}

/* ---- SERVICES ---- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  will-change: transform;
}
.service-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}
.service-card--accent {
  border-color: rgba(37,99,235,0.3);
  background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(124,58,237,0.06));
}
.service-card--accent:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(37,99,235,0.2);
}
.service-card__badge {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--gradient);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
}
.service-card__icon {
  font-size: 32px;
  margin-bottom: 18px;
}
.service-card h3 {
  font-size: 17px;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.service-card p {
  font-size: 14px;
  line-height: 1.65;
  flex: 1;
}
.service-card__link {
  display: inline-block;
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: all var(--transition);
}
.service-card__link:hover {
  color: #fff;
  letter-spacing: 0.02em;
}

/* ---- INSIGHTS ---- */
.insights__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.insight-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  cursor: pointer;
  will-change: transform;
}
.insight-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.insight-card--accent {
  border-color: rgba(37,99,235,0.3);
  background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(124,58,237,0.06));
}
.insight-card--accent:hover { border-color: var(--accent); }
.insight-card__icon {
  font-size: 28px;
  flex-shrink: 0;
  margin-top: 2px;
}
.insight-card__content { flex: 1; }
.insight-card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.insight-card h3 {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 12px;
}
.insight-card__cta {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.insight-card:hover .insight-card__cta { color: var(--accent); }

/* ---- CONTACT ---- */
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.contact__info h2 { margin-top: 12px; }
.contact__info p  { margin: 16px 0 32px; }
.contact__links { display: flex; flex-direction: column; gap: 12px; }
.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: color var(--transition);
}
.contact__link:hover { color: var(--accent); }

.contact__form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: var(--font);
  font-size: 15px;
  color: var(--text-primary);
  transition: border-color var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-status {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 500;
  text-align: center;
}
.form-status.success { color: #3FB950; }
.form-status.error   { color: #F85149; }

/* ---- FOOTER ---- */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__logo {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.footer__logo span { color: var(--accent); }
.footer__copy {
  font-size: 13px;
  color: var(--text-muted);
}
.footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer__links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--text-secondary); }

/* ---- FLOATING CTA (NEW) ---- */
.floating-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--accent);
  color: #fff;
  padding: 14px 18px;
  border-radius: 30px;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
  z-index: 999;
  transition: all var(--transition);
}
.floating-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .services__grid  { grid-template-columns: repeat(2, 1fr); }
  .insights__grid  { grid-template-columns: repeat(2, 1fr); }
  .about__inner    { grid-template-columns: 1fr; gap: 40px; }
  .contact__inner  { grid-template-columns: 1fr; gap: 48px; }
  .problems__grid  { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .navbar__links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .navbar__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(13,17,23,0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 4px;
  }

  .services__grid { grid-template-columns: 1fr; }
  .insights__grid { grid-template-columns: 1fr; }
  .problems__grid { grid-template-columns: 1fr; }

  .hero__cta-group { flex-direction: column; align-items: flex-start; }

  .contact__form  { padding: 28px 20px; }

  .footer__inner  { flex-direction: column; text-align: center; gap: 16px; }
  .footer__links  { justify-content: center; }

  /* Floating CTA ne smeta previše na mobu */
  .floating-cta {
    bottom: 16px;
    right: 16px;
    padding: 12px 16px;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
}