/* ============================================================
   Neural13 — Shared Stylesheet
   /assets/style.css
============================================================ */

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

:root {
  --bg:     #03050E;
  --blue:   #0066FF;
  --blue2:  #3B82F6;
  --blue3:  #0EA5E9;
  --cyan:   #22D3EE;
  --white:  #FFFFFF;
  --gray:   #9CA3AF;
  --gray2:  #4B5563;
  --border: rgba(255,255,255,0.07);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  font-weight: 300;
  min-height: 100vh;
  overflow-x: hidden;
  cursor: none;
}

/* ── CURSOR ── */
.cursor {
  width: 5px; height: 5px; background: var(--cyan);
  border-radius: 50%; position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9999; mix-blend-mode: screen;
}
.cursor-ring {
  width: 28px; height: 28px;
  border: 1px solid rgba(34,211,238,0.4); border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9998; transition: all 0.28s ease;
}

/* ── GRAIN ── */
.grain {
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.055'/%3E%3C/svg%3E");
  opacity: 0.18; pointer-events: none; z-index: 2;
}

/* ── CANVAS ── */
#canvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; }

/* ── VIGNETTE ── */
.vignette {
  position: fixed; inset: 0; z-index: 3; pointer-events: none;
  background: radial-gradient(ellipse at center,
    transparent 30%, rgba(3,5,14,0.45) 70%, rgba(3,5,14,0.75) 100%);
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 2rem 3rem;
  display: flex; justify-content: space-between; align-items: center;
  background: linear-gradient(to bottom, rgba(3,5,14,0.6) 0%, transparent 100%);
}

.nav-logo {
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--white); text-decoration: none;
  opacity: 0; animation: fadeDown 0.8s ease 0.2s forwards;
}

.nav-right {
  display: flex; align-items: center; gap: 2.5rem;
  opacity: 0; animation: fadeDown 0.8s ease 0.4s forwards;
}

.nav-link {
  font-size: 0.72rem; font-weight: 300; letter-spacing: 0.12em;
  color: var(--gray); text-decoration: none; transition: color 0.25s;
}
.nav-link:hover, .nav-link.active { color: var(--white); }

/* ── FOOTER ── */
footer {
  position: relative; z-index: 10;
  padding: 2.5rem 3rem; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}

.footer-copy {
  font-size: 0.65rem; font-weight: 300;
  letter-spacing: 0.1em; color: var(--gray2);
}

.footer-email {
  font-size: 0.65rem; font-weight: 300; letter-spacing: 0.08em;
  color: var(--gray2); text-decoration: none; transition: color 0.25s, text-shadow 0.25s;
}
.footer-email:hover { color: var(--cyan); text-shadow: 0 0 12px rgba(34,211,238,0.4); }

.footer-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan), 0 0 24px rgba(34,211,238,0.4);
  animation: pulse 2.5s ease infinite;
}

/* ── HERO ── */
.hero {
  position: relative; z-index: 10;
  min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  text-align: center; padding: 0 2rem;
}

.hero-label {
  font-size: 0.62rem; font-weight: 400; letter-spacing: 0.55em;
  text-transform: uppercase; color: var(--cyan); margin-bottom: 2rem;
  opacity: 0; animation: fadeUp 1s ease 0.6s forwards;
  text-shadow: 0 0 20px rgba(34,211,238,0.6);
}

.hero-title {
  font-size: clamp(4.5rem, 14vw, 12rem);
  font-weight: 600; letter-spacing: -0.04em; line-height: 1;
  margin-bottom: 2.5rem;
  opacity: 0; animation: fadeUp 1.2s ease 0.8s forwards;
  background: linear-gradient(160deg, #ffffff 0%, #e8f4ff 20%, #7DD3FC 45%, #0EA5E9 65%, #0066FF 85%, #3B82F6 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  filter: drop-shadow(0 0 40px rgba(0,102,255,0.6))
          drop-shadow(0 0 80px rgba(14,165,233,0.35))
          drop-shadow(0 0 120px rgba(0,102,255,0.2));
}

.hero-sub {
  font-size: clamp(0.9rem, 1.8vw, 1.12rem);
  font-weight: 200; color: rgba(255,255,255,0.55);
  max-width: 460px; line-height: 1.75; margin-bottom: 3.5rem;
  opacity: 0; animation: fadeUp 1s ease 1s forwards;
}

.hero-cta {
  display: inline-flex; align-items: center; gap: 0.7rem;
  padding: 0.9rem 2.6rem;
  border: 1px solid rgba(34,211,238,0.35);
  color: var(--white); text-decoration: none;
  font-size: 0.72rem; font-weight: 400; letter-spacing: 0.2em;
  text-transform: uppercase; transition: all 0.4s ease;
  position: relative; overflow: hidden;
  opacity: 0; animation: fadeUp 1s ease 1.2s forwards;
  box-shadow: inset 0 0 30px rgba(0,102,255,0.07), 0 0 30px rgba(0,102,255,0.1);
  backdrop-filter: blur(8px); background: rgba(255,255,255,0.03);
}
.hero-cta::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,102,255,0.18), rgba(34,211,238,0.12));
  transform: translateX(-100%); transition: transform 0.45s ease;
}
.hero-cta:hover::before { transform: translateX(0); }
.hero-cta:hover {
  border-color: rgba(34,211,238,0.7);
  box-shadow: inset 0 0 40px rgba(0,102,255,0.12), 0 0 50px rgba(0,102,255,0.25);
}

/* ── LOGOS ── */
.logos {
  position: relative; z-index: 10;
  padding: 4.5rem 0; border-top: 1px solid var(--border);
}
.logos-label {
  text-align: center; font-size: 0.6rem; font-weight: 400;
  letter-spacing: 0.45em; text-transform: uppercase; color: var(--gray2);
  margin-bottom: 2.5rem; opacity: 0; animation: fadeIn 1s ease 1.6s forwards;
}
.logos-track {
  display: flex; justify-content: center; align-items: center;
  gap: 4rem; flex-wrap: wrap; padding: 0 3rem;
  opacity: 0; animation: fadeIn 1s ease 1.8s forwards;
}
.logo-item {
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.18em;
  text-transform: uppercase; color: rgba(255,255,255,0.15); transition: color 0.3s, text-shadow 0.3s;
}
.logo-item:hover { color: rgba(34,211,238,0.5); text-shadow: 0 0 16px rgba(34,211,238,0.3); }

/* ── INFO ── */
.info {
  position: relative; z-index: 10;
  padding: 8rem 3rem; max-width: 680px; margin: 0 auto;
  text-align: center; border-top: 1px solid var(--border);
}
.info-text {
  font-size: clamp(1rem, 2vw, 1.22rem); font-weight: 200;
  color: rgba(255,255,255,0.45); line-height: 1.95; margin-bottom: 3rem;
  opacity: 0; animation: fadeIn 1s ease 2s forwards;
}
.info-text em { font-style: normal; color: rgba(255,255,255,0.75); }
.info-location {
  font-size: 0.62rem; font-weight: 400; letter-spacing: 0.5em;
  text-transform: uppercase; color: var(--gray2);
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  opacity: 0; animation: fadeIn 1s ease 2.2s forwards;
}
.info-location::before, .info-location::after {
  content: ''; width: 30px; height: 1px; background: var(--gray2); opacity: 0.35;
}

/* ── CONTACT PAGE ── */
.contact-wrap {
  position: relative; z-index: 10; min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  padding: 8rem 3rem 4rem;
}
.contact-label {
  font-size: 0.6rem; font-weight: 400; letter-spacing: 0.55em;
  text-transform: uppercase; color: var(--cyan); margin-bottom: 1.5rem;
  opacity: 0; animation: fadeUp 0.8s ease 0.3s forwards;
  text-shadow: 0 0 20px rgba(34,211,238,0.5);
}
.contact-title {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 600; letter-spacing: -0.04em; line-height: 1;
  text-align: center; margin-bottom: 1.5rem;
  background: linear-gradient(160deg, #ffffff 0%, #e8f4ff 30%, #7DD3FC 60%, #0EA5E9 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  filter: drop-shadow(0 0 40px rgba(0,102,255,0.5)) drop-shadow(0 0 80px rgba(14,165,233,0.25));
  opacity: 0; animation: fadeUp 1s ease 0.5s forwards;
}
.contact-sub {
  font-size: 0.86rem; font-weight: 200; color: rgba(255,255,255,0.45);
  text-align: center; margin-bottom: 3.5rem;
  opacity: 0; animation: fadeUp 0.8s ease 0.7s forwards;
}
.form-box { width: 100%; max-width: 540px; opacity: 0; animation: fadeUp 0.8s ease 0.9s forwards; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.form-group { margin-bottom: 1rem; }
.form-label {
  display: block; font-size: 0.6rem; font-weight: 400;
  letter-spacing: 0.3em; text-transform: uppercase; color: var(--gray2); margin-bottom: 0.5rem;
}
.form-input, .form-textarea, .form-select {
  width: 100%; background: rgba(255,255,255,0.025);
  border: 1px solid rgba(255,255,255,0.07); color: var(--white);
  font-family: 'Inter', sans-serif; font-weight: 200; font-size: 0.86rem;
  padding: 0.85rem 1rem; outline: none;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
  appearance: none; border-radius: 0;
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: rgba(34,211,238,0.4);
  background: rgba(0,102,255,0.04);
  box-shadow: 0 0 20px rgba(0,102,255,0.08);
}
.form-input::placeholder, .form-textarea::placeholder { color: rgba(255,255,255,0.14); }
.form-select option { background: #060810; color: var(--white); }

/* Honeypot — invisible para humanos */
.hp-field { position: absolute; left: -9999px; opacity: 0; pointer-events: none; tabindex: -1; }

.form-submit {
  width: 100%; padding: 1rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(34,211,238,0.28); color: var(--white);
  font-family: 'Inter', sans-serif; font-size: 0.7rem; font-weight: 400;
  letter-spacing: 0.25em; text-transform: uppercase; cursor: none;
  margin-top: 0.5rem; transition: all 0.4s; position: relative; overflow: hidden;
  box-shadow: 0 0 20px rgba(0,102,255,0.06); backdrop-filter: blur(8px);
}
.form-submit::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,102,255,0.15), rgba(34,211,238,0.1));
  transform: translateX(-100%); transition: transform 0.45s;
}
.form-submit:hover::before { transform: translateX(0); }
.form-submit:hover {
  border-color: rgba(34,211,238,0.65);
  box-shadow: 0 0 40px rgba(0,102,255,0.18), 0 0 80px rgba(14,165,233,0.1);
}
.form-submit:disabled { opacity: 0.5; cursor: not-allowed; }

.form-msg {
  display: none; margin-top: 1rem; padding: 0.85rem 1rem;
  font-size: 0.75rem; letter-spacing: 0.1em; text-align: center;
}
.form-msg.success {
  border: 1px solid rgba(34,211,238,0.2); background: rgba(34,211,238,0.04);
  color: var(--cyan); text-shadow: 0 0 12px rgba(34,211,238,0.3);
}
.form-msg.error {
  border: 1px solid rgba(248,113,113,0.2); background: rgba(248,113,113,0.04);
  color: #f87171;
}

/* ── ANIMATIONS ── */
@keyframes fadeIn   { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp   { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse    {
  0%,100% { box-shadow: 0 0 12px var(--cyan), 0 0 24px rgba(34,211,238,0.4); opacity: 1; }
  50%      { box-shadow: 0 0 4px var(--cyan); opacity: 0.5; }
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 1.5rem 1.5rem; }
  .info { padding: 5rem 1.5rem; }
  .contact-wrap { padding: 7rem 1.5rem 3rem; }
  .form-row { grid-template-columns: 1fr; }
  footer { padding: 2rem 1.5rem; flex-direction: column; gap: 1.2rem; text-align: center; }
  .logos-track { gap: 2rem; }
}