/* ============================================================
   Š-IT — stylesheet
   Boje i razmaci definirani preko CSS varijabli radi lakih izmjena.
   ============================================================ */
:root {
  --bg:        #0b1220;
  --bg-alt:    #0f1a2e;
  --surface:   #131f36;
  --surface-2: #18274a;
  --text:      #e7edf7;
  --text-mut:  #9fb0c9;
  --accent:    #2dd4bf;
  --accent-2:  #0ea5e9;
  --border:    #24324f;
  --radius:    14px;
  --radius-lg: 22px;
  --maxw:      1080px;
  --shadow:    0 18px 40px -20px rgba(0, 0, 0, .7);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1.1rem, 4vw, 2rem); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--accent); color: #04121a; padding: .6rem 1rem; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .8rem 1.5rem; border-radius: 999px; font-weight: 600; font-size: .98rem;
  cursor: pointer; border: 1px solid transparent; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04121a; box-shadow: 0 10px 24px -10px var(--accent);
}
.btn-primary:hover { box-shadow: 0 14px 30px -10px var(--accent); transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 18, 32, .82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; }
.logo { font-size: 1.5rem; font-weight: 800; letter-spacing: -.5px; }
.logo span { background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.nav { display: flex; align-items: center; gap: 1.6rem; }
.nav > a { color: var(--text-mut); font-weight: 500; transition: color .2s; }
.nav > a:hover { color: var(--text); }

.lang-switch { display: flex; align-items: center; gap: .35rem; color: var(--text-mut); }
.lang-btn {
  background: none; border: none; color: var(--text-mut); font: inherit; font-weight: 600;
  cursor: pointer; padding: .2rem .3rem; border-radius: 6px;
}
.lang-btn.is-active { color: var(--accent); }
.lang-btn:hover { color: var(--text); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .25s; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(4rem, 12vw, 8rem) 0; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 60% at 80% 0%, rgba(45, 212, 191, .16), transparent 60%),
    radial-gradient(50% 60% at 10% 20%, rgba(14, 165, 233, .14), transparent 60%);
}
.hero-inner { max-width: 760px; }
.eyebrow { color: var(--accent); font-weight: 600; letter-spacing: .5px; text-transform: uppercase; font-size: .85rem; margin-bottom: 1rem; }
.hero h1 { font-size: clamp(2rem, 5.5vw, 3.4rem); line-height: 1.12; letter-spacing: -1px; margin-bottom: 1.2rem; }
.lead { font-size: clamp(1.05rem, 2.2vw, 1.25rem); color: var(--text-mut); margin-bottom: 2rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; }

/* ---------- Sections ---------- */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-alt { background: var(--bg-alt); }
.section-title { font-size: clamp(1.6rem, 4vw, 2.3rem); letter-spacing: -.5px; }
.section-sub { color: var(--text-mut); margin-top: .4rem; margin-bottom: 2.4rem; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.2rem; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.6rem; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow); }
.card-icon { font-size: 1.8rem; margin-bottom: .8rem; }
.card h3 { font-size: 1.15rem; margin-bottom: .5rem; }
.card p { color: var(--text-mut); font-size: .97rem; }
.card-featured { background: linear-gradient(160deg, var(--surface-2), var(--surface)); border-color: rgba(45, 212, 191, .4); }
.badge {
  display: inline-block; margin-top: 1rem; padding: .3rem .7rem; font-size: .78rem; font-weight: 600;
  color: var(--accent); background: rgba(45, 212, 191, .12); border: 1px solid rgba(45, 212, 191, .35); border-radius: 999px;
}

/* ---------- About ---------- */
.about-inner { display: grid; grid-template-columns: 220px 1fr; gap: clamp(1.5rem, 5vw, 3.5rem); align-items: center; }
.about-badge {
  display: grid; place-items: center; aspect-ratio: 1; border-radius: var(--radius-lg);
  font-size: 3rem; font-weight: 800; letter-spacing: -1px;
  background: linear-gradient(135deg, rgba(45, 212, 191, .18), rgba(14, 165, 233, .18));
  border: 1px solid var(--border); color: var(--accent);
}
.about-text p { color: var(--text-mut); margin-bottom: 1rem; }
.about-list { list-style: none; display: grid; gap: .5rem; margin-top: 1.2rem; }
.about-list li { position: relative; padding-left: 1.7rem; color: var(--text); }
.about-list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ---------- Contact ---------- */
.contact-inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(1.8rem, 6vw, 4rem); align-items: start; }
.contact-list { list-style: none; display: grid; gap: 1rem; margin-top: .5rem; }
.contact-list li { display: flex; flex-direction: column; }
.ci-label { font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; color: var(--text-mut); }
.contact-list a { font-size: 1.05rem; font-weight: 500; width: fit-content; }
.contact-list a:hover { color: var(--accent); }

.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.8rem; }
.field { margin-bottom: 1.1rem; display: flex; flex-direction: column; gap: .4rem; }
.field label { font-size: .9rem; font-weight: 600; color: var(--text-mut); }
.field input, .field textarea {
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px; color: var(--text);
  padding: .75rem .9rem; font: inherit; resize: vertical; transition: border-color .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); }
.field input:user-invalid, .field textarea:user-invalid { border-color: #f87171; }
.contact-form .btn { width: 100%; margin-top: .3rem; }
.form-status { margin-top: .9rem; font-size: .95rem; min-height: 1.2em; }
.form-status.ok { color: var(--accent); }
.form-status.err { color: #f87171; }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding-top: 2.6rem; margin-top: 2rem; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between; padding-bottom: 2rem; }
.footer-brand .logo { font-size: 1.4rem; }
.footer-brand p { color: var(--text-mut); margin-top: .3rem; }
.footer-legal { font-size: .92rem; color: var(--text-mut); }
.footer-legal strong { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding: 1.2rem 0; color: var(--text-mut); font-size: .88rem; }

/* ---------- Easter egg (3 klika na logo) ---------- */
.egg {
  position: fixed; inset: 0; z-index: 90; display: grid; place-content: center; gap: 1rem;
  justify-items: center; background: rgba(11, 18, 32, .82); backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none; transition: opacity .25s ease;
}
.egg.is-on { opacity: 1; }
.egg-poop { width: clamp(120px, 26vw, 190px); height: auto; }
.egg.is-on .egg-poop { animation: poop-pop .55s cubic-bezier(.2, 1.5, .4, 1), poop-wiggle 1.1s .55s ease-in-out 2; }
.egg-text {
  font-weight: 600; font-size: clamp(1rem, 3vw, 1.3rem); color: var(--text);
  text-align: center; padding: 0 1.5rem;
}
.egg.is-on .egg-text { animation: egg-rise .4s .3s both; }

@keyframes poop-pop {
  0%   { transform: scale(0) translateY(60px); }
  100% { transform: scale(1) translateY(0); }
}
@keyframes poop-wiggle {
  0%, 100% { transform: rotate(0); }
  25%      { transform: rotate(-7deg); }
  75%      { transform: rotate(7deg); }
}
@keyframes egg-rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  /* Nav je dijete headera pa se crta PREKO loga. translateY ga ne makne pouzdano
     (postotak se racuna od visine nava, pa mu donji rub ostane na ekranu i rezao
     je kvacicu na Š). Zato: sakrij ga kad je zatvoren + drzi logo iznad njega. */
  .nav {
    position: fixed; inset: 68px 0 auto 0; z-index: 1; flex-direction: column; align-items: flex-start;
    gap: 1.1rem; background: var(--bg-alt); border-bottom: 1px solid var(--border);
    padding: 1.4rem clamp(1.1rem, 4vw, 2rem); transform: translateY(-120%);
    visibility: hidden;
    transition: transform .28s ease, visibility 0s .28s; box-shadow: var(--shadow);
  }
  .nav.is-open {
    transform: translateY(0); visibility: visible;
    transition: transform .28s ease, visibility 0s 0s;
  }
  .logo, .nav-toggle { position: relative; z-index: 2; }
  .nav-toggle { display: flex; }
  .about-inner { grid-template-columns: 1fr; }
  .about-badge { max-width: 160px; }
  .contact-inner { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .egg.is-on .egg-poop, .egg.is-on .egg-text { animation: none; }
}