/* ============================================================================
   VTN INDUSTRIES — Sectiuni: intro cinematic, nav, hub (2 usi)
   ============================================================================ */

/* ============================ INTRO ============================ */
body.intro-active { overflow: hidden; }

.intro {
  position: fixed; inset: 0; z-index: 1000;
  display: grid; place-items: center;
  background: radial-gradient(120% 120% at 50% 50%, #0a0f1f 0%, #05070f 70%);
  transition: opacity .9s var(--ease-out), visibility .9s;
}
.intro.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.intro__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.intro__flash {
  position: absolute; left: 50%; top: 50%; width: 8px; height: 8px;
  transform: translate(-50%, -50%) scale(0);
  border-radius: 50%; background: radial-gradient(circle, #fff 0%, rgba(150,190,255,.6) 30%, transparent 70%);
  opacity: 0;
}
.intro.step-flash .intro__flash { animation: introFlash .7s var(--ease-out) forwards; }
@keyframes introFlash {
  0% { transform: translate(-50%,-50%) scale(0); opacity: 0; }
  35% { opacity: 1; }
  100% { transform: translate(-50%,-50%) scale(60); opacity: 0; }
}

.intro__core { position: relative; z-index: 2; display: grid; justify-items: center; gap: var(--s-5); }
.intro__emblem { width: clamp(96px, 14vw, 150px); height: auto; filter: drop-shadow(0 0 24px rgba(110,168,255,.45)); }

.intro__emblem .em-hex { stroke-dasharray: 520; stroke-dashoffset: 520; }
.intro__emblem .em-v   { stroke-dasharray: 150; stroke-dashoffset: 150; }
.intro__emblem .em-spark { opacity: 0; transform-origin: 64px 34px; transform: scale(.2); }

.intro.step-draw .em-hex { animation: draw 1.3s var(--ease-out) .1s forwards; }
.intro.step-draw .em-v   { animation: draw 1s var(--ease-out) .5s forwards; }
.intro.step-draw .em-spark { animation: sparkPop .6s var(--ease-out) 1.25s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes sparkPop {
  0% { opacity: 0; transform: scale(.2) rotate(-40deg); }
  60% { opacity: 1; transform: scale(1.25) rotate(8deg); }
  100% { opacity: 1; transform: scale(1) rotate(0); }
}

.intro__word { overflow: hidden; display: grid; justify-items: center; gap: 6px; opacity: 0; }
.intro.step-word .intro__word { animation: wordUp .9s var(--ease-out) forwards; }
@keyframes wordUp { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }

.intro__name {
  font-family: var(--font-brand); font-weight: 400; font-size: clamp(1.7rem, 5vw, 2.9rem);
  letter-spacing: .04em; color: #fff; display: inline-flex; gap: .5em; align-items: baseline;
}
.intro__name i { font-style: normal; font-weight: 400; color: var(--text-dim); letter-spacing: .22em; font-size: .5em; }
.intro__tag { font-family: var(--font-mono); font-size: .8rem; letter-spacing: .3em; text-transform: uppercase; color: var(--text-faint); }

.intro__skip {
  position: absolute; bottom: 30px; right: 30px; z-index: 3;
  font-family: var(--font-mono); font-size: .75rem; letter-spacing: .12em;
  color: var(--text-faint); padding: .5em .9em; border: 1px solid var(--line); border-radius: var(--r-pill);
  transition: color .3s, border-color .3s; opacity: 0; animation: fadeIn .6s ease 1.4s forwards;
}
.intro__skip:hover { color: var(--text); border-color: var(--line-strong); }
@keyframes fadeIn { to { opacity: 1; } }

/* ============================ NAV ============================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transform: translateY(-110%); transition: transform .8s var(--ease-out), background .4s, border-color .4s, backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
body.ready .nav { transform: none; }
.nav.scrolled { background: rgba(7,10,22,.72); backdrop-filter: blur(16px); border-bottom-color: var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: var(--s-5); }
.nav__brand { display: inline-flex; align-items: center; gap: var(--s-3); font-family: var(--font-brand); font-weight: 400; font-size: .9rem; letter-spacing: .02em; }
.nav__brand i { font-style: normal; font-weight: 400; color: var(--text-dim); }
.nav__links { display: flex; gap: var(--s-6); }
.nav__links a { color: var(--text-dim); font-size: .95rem; position: relative; transition: color .3s; }
.nav__links a::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--grad-vtn); transition: width .3s var(--ease-out); }
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { width: 100%; }
.nav__cta { padding: .6em 1.2em; font-size: .9rem; }
@media (max-width: 820px) { .nav__links { display: none; } }
@media (max-width: 520px) { .nav__cta { display: none; } }

/* ============================ HUB / HERO ============================ */
.hub { min-height: 100svh; display: grid; align-items: center; padding-top: 90px; overflow: hidden; }
.hub__inner { position: relative; z-index: 2; }
.hub__title { margin-top: var(--s-4); max-width: 16ch; }
.hub__lead { margin-top: var(--s-5); }

.doors { margin-top: var(--s-8); display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-5); }
@media (max-width: 860px) { .doors { grid-template-columns: 1fr; } }

.door {
  position: relative; overflow: hidden; isolation: isolate;
  display: grid; align-content: start; gap: var(--s-3);
  padding: clamp(var(--s-5), 3vw, var(--s-7));
  border: 1px solid var(--line); border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.01));
  transition: transform .5s var(--ease-out), border-color .5s, box-shadow .5s;
  min-height: 280px;
}
.door:hover { transform: translateY(-6px); }
.door__num { font-family: var(--font-mono); font-size: .8rem; color: var(--text-faint); letter-spacing: .15em; }
.door__kicker { font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .2em; color: var(--text-faint); }
.door__title { font-family: var(--font-display); font-size: var(--t-h3); font-weight: 500; color: var(--text); margin-top: 2px; }
.door__title b { font-weight: 700; }
.door__desc { color: var(--text-dim); font-size: 1rem; max-width: 42ch; }
.door__go { margin-top: var(--s-3); font-weight: 600; display: inline-flex; align-items: center; gap: .5em; color: var(--text); }
.door__go i { font-style: normal; transition: transform .4s var(--ease-out); }
.door:hover .door__go i { transform: translateX(6px); }
.door__glow { position: absolute; inset: -1px; z-index: -1; opacity: 0; transition: opacity .5s; pointer-events: none; }

.door--finance:hover { border-color: rgba(59,130,246,.55); box-shadow: var(--glow-finance); }
.door--finance .door__glow { background: radial-gradient(60% 80% at 80% 0%, rgba(59,130,246,.18), transparent 70%); }
.door--finance:hover .door__glow { opacity: 1; }
.door--finance .door__title b { color: var(--finance); }

.door--eng:hover { border-color: rgba(255,138,61,.5); box-shadow: var(--glow-eng); }
.door--eng .door__glow { background: radial-gradient(60% 80% at 80% 0%, rgba(255,138,61,.16), transparent 70%); }
.door--eng:hover .door__glow { opacity: 1; }
.door--eng .door__title b { color: var(--eng); }

/* indiciu de scroll */
.scroll-cue { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 2; width: 26px; height: 42px; border: 1px solid var(--line-strong); border-radius: var(--r-pill); display: grid; justify-items: center; padding-top: 8px; opacity: .7; }
.scroll-cue span { width: 4px; height: 8px; border-radius: 2px; background: var(--vtn); animation: scrollDot 1.6s var(--ease-in-out) infinite; }
@keyframes scrollDot { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(14px); opacity: 0; } 100% { opacity: 0; } }