/* ==========================================================================
   AI Radionica Beograd — zajednički stilovi
   Ne menjaj ovaj fajl u svom zadatku. Svoje stilove piši u svojoj stranici.
   ========================================================================== */

:root {
  --bg: #0b0c0b;
  --bg-2: #111310;
  --card: #151814;
  --card-hover: #1c201a;
  --border: #30352d;
  --border-2: #454c40;
  --text: #f3f0e5;
  --muted: #9a9f94;
  --dim: #676c63;
  --accent: #d5ff45;
  --accent-ink: #11150c;
  --blue: #57e0ef;
  --danger: #ff674b;
  --ok: #d5ff45;
  --warn: #ffd33d;
  --radius: 18px;
  --max: 1240px;
  --sans: "Geist", "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "Geist Mono", "SFMono-Regular", Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Diskretna mreža u pozadini */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(243,240,229,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243,240,229,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  z-index: -1;
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
code, kbd, pre { font-family: var(--mono); }

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

/* ---------- Gornja traka ---------- */
.topbar {
  background: var(--accent);
  color: var(--accent-ink);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.topbar .container {
  display: flex; align-items: center; justify-content: center; gap: 1.6rem;
  min-height: 36px; flex-wrap: wrap;
}
.topbar .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-ink); margin-right: .5rem; vertical-align: middle; }
.topbar a { text-decoration: underline; text-underline-offset: 3px; text-transform: none; letter-spacing: 0; }

/* ---------- Navigacija ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(11, 12, 11, 0.85);
  border-bottom: 1px solid var(--border);
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1rem;
}
.brand { display: flex; align-items: center; gap: .65rem; font-weight: 900; letter-spacing: -.03em; font-size: 1.05rem; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center;
  background: var(--accent);
  font-size: 1rem;
}
.nav-links { display: flex; gap: .25rem; flex-wrap: wrap; }
.nav-links a {
  padding: .45rem .9rem;
  border-radius: 10px;
  color: var(--muted);
  font-size: .93rem;
  font-weight: 600;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: var(--card); }
.nav-links a.active { color: var(--accent); }

/* ---------- Tipografija ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .4rem .9rem;
  border: 1px solid rgba(213, 255, 69, .45);
  border-radius: 999px;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }

h1, h2, h3 { text-wrap: balance; }
h1 { font-size: clamp(2.8rem, 6.4vw, 6rem); font-weight: 900; letter-spacing: -.06em; line-height: .95; }
h2 { font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 900; letter-spacing: -.05em; line-height: 1; }
h3 { font-size: 1.2rem; font-weight: 800; letter-spacing: -.02em; line-height: 1.2; }

/* Naglašen tekst — jednobojni lime, bez gradijenta */
.gradient-text, .hl { color: var(--accent); }

.lead { font-size: clamp(1.05rem, 1.5vw, 1.25rem); color: var(--muted); max-width: 700px; }
.muted { color: var(--muted); }

/* ---------- Sekcije ---------- */
section { padding: 6rem 0; position: relative; scroll-margin-top: 70px; }
.section-head { margin-bottom: 3rem; max-width: 820px; }
.section-head .label {
  font-family: var(--mono);
  font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem; display: block;
}
.section-head p { color: var(--muted); margin-top: 1.1rem; font-size: 1.08rem; max-width: 680px; }

/* ---------- Hero ---------- */
.hero { padding: 5.5rem 0 4.5rem; }
.hero .eyebrow { margin-bottom: 1.75rem; }
.hero h1 { margin-bottom: 1.6rem; max-width: 1080px; }
.hero .lead { margin-bottom: 2.4rem; }
.cta-row { display: flex; gap: .8rem; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: .7rem;
  padding: 1.05rem 1.6rem;
  border-radius: 14px;
  font-weight: 800;
  font-size: 1rem;
  transition: transform .2s, background .2s, border-color .2s;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { transform: translateY(-2px); background: #e2ff75; }
.btn-ghost { background: var(--bg-2); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--border-2); background: var(--card); transform: translateY(-2px); }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  margin-top: 4.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat { padding: 1.6rem 1.5rem; background: var(--bg-2); }
.stat + .stat { border-left: 1px solid var(--border); }
.stat b { display: block; font-size: 2.6rem; font-weight: 900; letter-spacing: -.05em; line-height: 1; margin-bottom: .5rem; color: var(--accent); }
.stat span { display: block; line-height: 1.45; color: var(--muted); font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }

/* ---------- Kartice ---------- */
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

.card {
  position: relative;
  padding: 1.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  transition: transform .25s, border-color .25s;
  overflow: hidden;
}
.card:hover { transform: translateY(-3px); border-color: var(--border-2); }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center;
  font-size: 1.35rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  margin-bottom: 1.2rem;
}
.card h3 { margin-bottom: .6rem; }
.card p { color: var(--muted); font-size: .96rem; }
.card ul { list-style: none; margin-top: 1rem; border-top: 1px solid var(--border); padding-top: .9rem; }
.card ul li { color: var(--muted); font-size: .93rem; padding: .2rem 0 .2rem 1.3rem; position: relative; }
.card ul li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }
.card .tag {
  position: absolute; top: 1.4rem; right: 1.4rem;
  font-family: var(--mono);
  font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: .3rem .65rem; border-radius: 8px;
  border: 1px solid var(--border-2); color: var(--text);
}
.card.featured { border-color: var(--accent); }
.card.featured .tag { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* ---------- Callout ---------- */
.callout {
  display: flex; gap: 1.1rem; align-items: flex-start;
  padding: 1.6rem 1.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  background: var(--bg-2);
}
.callout .emoji { font-size: 1.7rem; line-height: 1; }
.callout p { color: var(--muted); }
.callout strong { color: var(--text); }
.callout.warn { border-left-color: var(--danger); }

/* ---------- Principi ---------- */
.principles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.principle { padding: 1.7rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); }
.principle .num {
  font-family: var(--mono); font-size: .8rem; font-weight: 700;
  color: var(--accent); margin-bottom: 1.4rem; display: block;
}
.principle h3 { margin-bottom: .5rem; }
.principle p { color: var(--muted); font-size: .95rem; }

/* ---------- Pojmovnik ---------- */
.search {
  width: 100%;
  padding: 1.05rem 1.2rem 1.05rem 3rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' stroke='%239a9f94' stroke-width='2' viewBox='0 0 24 24'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E") no-repeat 1.1rem center;
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  margin-bottom: 1.25rem;
  outline: none;
  transition: border-color .2s;
}
.search:focus { border-color: var(--accent); }
.glossary { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; align-items: start; }
.term {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  transition: border-color .2s;
}
.term[open] { border-color: var(--accent); }
.term summary {
  list-style: none; cursor: pointer;
  padding: 1.1rem 1.3rem;
  font-weight: 800;
  letter-spacing: -.01em;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.term summary::-webkit-details-marker { display: none; }
.term summary::after { content: "+"; color: var(--accent); font-size: 1.4rem; font-weight: 400; transition: transform .2s; }
.term[open] summary::after { transform: rotate(45deg); }
.term p { padding: 0 1.3rem 1.2rem; color: var(--muted); font-size: .95rem; }
.empty { color: var(--dim); padding: 1rem 0; display: none; }

/* ---------- Koraci (zadatak) ---------- */
.steps { counter-reset: step; display: grid; gap: 1rem; }
.step {
  counter-increment: step;
  display: grid; grid-template-columns: 64px 1fr; gap: 1.4rem;
  padding: 1.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
}
.step::before {
  content: counter(step, decimal-leading-zero);
  width: 64px; height: 64px; border-radius: 14px;
  display: grid; place-items: center;
  font-family: var(--mono); font-weight: 700; font-size: 1.1rem;
  background: var(--accent); color: var(--accent-ink);
}
.step h3 { margin-bottom: .45rem; font-size: 1.3rem; }
.step p { color: var(--muted); }
.step p + p { margin-top: .6rem; }
.step strong { color: var(--text); }

pre, .code {
  margin-top: .9rem;
  padding: 1.1rem 1.3rem;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: .88rem;
  overflow-x: auto;
  line-height: 1.75;
}
pre .c { color: var(--dim); }
:not(pre) > code {
  padding: .12rem .45rem; border-radius: 6px;
  background: rgba(213, 255, 69, .1); color: var(--accent);
  font-size: .86em;
}

/* ---------- Ljudi ---------- */
.people { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.person {
  display: flex; flex-direction: column; gap: 1.1rem;
  padding: 1.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  transition: transform .25s, border-color .25s;
}
.person:hover { transform: translateY(-4px); border-color: var(--c, var(--accent)); }
.avatar {
  width: 64px; height: 64px; border-radius: 16px;
  display: grid; place-items: center;
  font-weight: 900; font-size: 1.3rem; letter-spacing: -.03em;
  color: var(--accent-ink);
  background: var(--c, var(--accent));
}
.person h3 { font-size: 1.35rem; }
.person .role { color: var(--muted); font-size: .92rem; }
.person .status {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--mono);
  font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted);
}
.person .status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--warn); }
.person .go { margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--border); font-weight: 800; font-size: .95rem; }
.person:hover .go { color: var(--accent); }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  color: var(--dim);
  font-size: .9rem;
}
footer .container { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
footer a:hover { color: var(--accent); }

/* ---------- Animacija pojavljivanja ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .people { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  section { padding: 4rem 0; }
  .grid-2, .grid-3, .grid-5, .glossary, .people, .principles { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--border); }
  .nav-links a { padding: .4rem .55rem; font-size: .85rem; }
  .nav .brand-sub { display: none; }
  .step { grid-template-columns: 1fr; }
}

/* ---------- Promptovi ---------- */
.anatomy { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.2rem 0 0; }
.anatomy span {
  font-family: var(--mono); font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: .4rem .7rem; border-radius: 8px;
  border: 1px solid var(--border-2); background: var(--bg-2); color: var(--text);
}
.anatomy span b { color: var(--accent); margin-right: .35rem; }

.prompts { display: grid; gap: 1.2rem; }
.prompt {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
}
.prompt-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
  padding: 1.5rem 1.6rem 1.2rem;
}
.prompt-head .num {
  font-family: var(--mono); font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); display: block; margin-bottom: .4rem;
}
.prompt-head h3 { font-size: 1.35rem; margin-bottom: .35rem; }
.prompt-head p { color: var(--muted); font-size: .95rem; max-width: 720px; }
.prompt pre {
  margin: 0;
  border: 0; border-top: 1px solid var(--border); border-radius: 0;
  padding: 1.4rem 1.6rem;
  white-space: pre-wrap; word-break: break-word;
  font-size: .86rem;
}
.prompt pre .ph { color: var(--accent); font-weight: 700; }
.prompt pre .fill { color: var(--bg); background: var(--warn); border-radius: 4px; padding: 0 .25rem; }
.prompt .lesson {
  display: flex; gap: .7rem;
  padding: 1rem 1.6rem;
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--muted); font-size: .92rem;
}
.prompt .lesson b { color: var(--text); }
.copy {
  flex-shrink: 0;
  font-family: var(--sans); font-weight: 800; font-size: .88rem;
  padding: .7rem 1.1rem; border-radius: 12px; border: 0;
  background: var(--accent); color: var(--accent-ink);
  cursor: pointer; transition: transform .2s, background .2s;
}
.copy:hover { transform: translateY(-2px); background: #e2ff75; }
.copy.done { background: var(--text); }

.tips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.2rem; }
@media (max-width: 760px) {
  .tips { grid-template-columns: 1fr; }
  .prompt-head { flex-direction: column; }
}

/* ---------- VibeCode Academy logo ---------- */
.brandmark {
  width: 36px; height: 36px; border-radius: 10px;
  display: block; position: relative; overflow: hidden; flex-shrink: 0;
  background: var(--accent);
}
.brandmark i {
  position: absolute; top: 5px; width: 8px; height: 25px;
  background: var(--accent-ink); transform: skew(-21deg); border-radius: 2px;
}
.brandmark i:first-child { left: 9px; }
.brandmark i:last-child { right: 8px; }
.brandtype { font-size: 17px; font-weight: 900; letter-spacing: -.035em; line-height: 1; }
.brandtype small { display: block; font-size: 8px; letter-spacing: .24em; color: var(--muted); margin-top: 4px; font-weight: 800; }
.brand-sub {
  margin-left: .35rem; padding-left: .9rem; border-left: 1px solid var(--border-2);
  color: var(--muted); font-weight: 700; font-size: .92rem; letter-spacing: -.01em;
}
footer .brand { gap: .6rem; }
footer .brand .brandmark { width: 28px; height: 28px; border-radius: 8px; }
footer .brand .brandmark i { top: 4px; width: 6px; height: 20px; }
footer .brand .brandmark i:first-child { left: 7px; }
footer .brand .brandmark i:last-child { right: 6px; }
footer .brand .brandtype { color: var(--text); font-size: 15px; }

/* ---------- Faze setup-a ---------- */
.phases { display: grid; grid-template-columns: repeat(6, 1fr); gap: .75rem; margin-bottom: 1.4rem; }
.phase {
  padding: 1.1rem 1.1rem 1.2rem;
  border: 1px solid var(--border); border-radius: 14px; background: var(--card);
}
.phase .num { font-family: var(--mono); font-size: .72rem; font-weight: 700; letter-spacing: .08em; color: var(--accent); display: block; margin-bottom: .6rem; }
.phase h3 { font-size: 1rem; margin-bottom: .25rem; }
.phase p { color: var(--muted); font-size: .85rem; line-height: 1.45; }
.howto { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; margin-bottom: 1.4rem; }
.howto div { padding: 1.1rem 1.2rem; border: 1px dashed var(--border-2); border-radius: 14px; color: var(--muted); font-size: .93rem; }
.howto b { color: var(--accent); font-family: var(--mono); margin-right: .4rem; }
@media (max-width: 1000px) { .phases { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .phases, .howto { grid-template-columns: 1fr; } }
.phases { grid-template-columns: repeat(9, 1fr); }
.phase.you { border-color: rgba(213, 255, 69, .45); }
@media (max-width: 1000px) { .phases { grid-template-columns: repeat(2, 1fr); } }