/* ─────────────────────────────────────────────────────────────
   VOLUM — Site institucional govolum.com  v3
   Dark futurist · neon green accent
   ───────────────────────────────────────────────────────────── */

:root {
  --bg:      #07080a;
  --bg-2:    #0c0e12;
  --surface: #11141a;
  --surface-2: #161a22;
  --line:    rgba(255,255,255,0.08);
  --line-2:  rgba(255,255,255,0.14);
  --fg:      #f5f7fa;
  --fg-2:    rgba(245,247,250,0.72);
  --fg-3:    rgba(245,247,250,0.48);
  --fg-4:    rgba(245,247,250,0.28);

  --accent:      #02FF94;
  --accent-ink:  #001a0d;
  --accent-glow: rgba(2,255,148,0.35);

  --display: "Space Grotesk", system-ui, sans-serif;
  --sans:    "Geist", "Manrope", system-ui, sans-serif;
  --mono:    "Geist Mono", "JetBrains Mono", ui-monospace, monospace;

  --maxw: 1280px;
  --pad:  24px;

  --nav-h: 68px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
::selection { background: var(--accent); color: var(--accent-ink); }

/* ───── Atmosphere ───── */
.atmosphere {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
}
.atmosphere::before {
  content: ""; position: absolute; inset: -2px;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  opacity: .45;
}
.atmosphere::after {
  content: ""; position: absolute; top: -30%; left: 50%; transform: translateX(-50%);
  width: 1100px; height: 1100px;
  background: radial-gradient(circle at center, var(--accent-glow), transparent 60%);
  filter: blur(40px); opacity: .28;
}

/* ───── Layout ───── */
.container {
  width: 100%; max-width: var(--maxw); margin: 0 auto;
  padding: 0 var(--pad);
}

.section       { position: relative; z-index: 1; padding: 96px 0; }
.section-tight { position: relative; z-index: 1; padding: 56px 0; }

/* ───── Eyebrow ───── */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--fg-2);
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 12px var(--accent-glow);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .6; transform: scale(.85); }
}

/* ───── Typography ───── */
.h1, .h2, .h3 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.0;
  margin: 0;
  text-wrap: balance;
}
.h1 { font-size: clamp(36px, 5.5vw, 80px); line-height: 1.03; }
.h2 { font-size: clamp(28px, 3.8vw, 56px); line-height: 1.06; }
.h3 { font-size: clamp(18px, 1.8vw, 24px); letter-spacing: -0.02em; line-height: 1.2; }

.lead {
  font-size: 18px; color: var(--fg-2); line-height: 1.65;
  max-width: 58ch; text-wrap: pretty;
}
.kicker {
  font-family: var(--mono); font-size: 12px;
  letter-spacing: .14em; text-transform: uppercase; color: var(--fg-3);
}
.accent { color: var(--accent); }

/* ───── Reveal animations ───── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s cubic-bezier(.22,1,.36,1), transform .65s cubic-bezier(.22,1,.36,1);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ───── Nav ───── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition:
    background .35s ease,
    border-color .35s ease,
    backdrop-filter .35s ease;
}
.nav--scrolled {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
}

.nav-logo { display: flex; align-items: center; }
.nav-logo-img { height: 22px; width: auto; }

.nav-links { display: flex; align-items: center; gap: 4px; }

/* Nav dropdown items */
.nav-item { position: relative; }

.nav-dropdown-trigger {
  display: flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 500; color: var(--fg-2);
  background: none; border: none; cursor: pointer;
  padding: 8px 14px; border-radius: 8px;
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.nav-dropdown-trigger:hover,
.nav-dropdown-trigger.open { color: var(--fg); background: rgba(255,255,255,.05); }
.nav-dropdown-trigger.active { color: var(--fg); }

.nav-item::after {
  content: '';
  display: block;
  position: absolute;
  top: 100%; left: 0; right: 0;
  height: 16px; /* invisible bridge so mouse doesn't leave nav-item crossing the gap */
}
.nav-dropdown {
  position: absolute; top: calc(100% + 12px); left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 16px;
  padding: 6px;
  min-width: 280px;
  opacity: 0; pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 100;
  box-shadow: 0 24px 48px -12px rgba(0,0,0,.7), 0 0 0 1px rgba(255,255,255,.04);
}
.nav-dropdown.open {
  opacity: 1; pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-item {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 14px; border-radius: 10px;
  color: var(--fg);
  transition: background .15s;
}
.nav-dropdown-item:hover { background: var(--surface-2); }
.nav-dropdown-item.active { background: rgba(2,255,148,.08); }

.nav-dropdown-item-icon { font-size: 22px; line-height: 1; flex-shrink: 0; }
.nav-dropdown-item-text { display: flex; flex-direction: column; gap: 2px; }
.nav-dropdown-item-label {
  font-size: 14px; font-weight: 600; color: var(--fg);
  font-family: var(--display);
}
.nav-dropdown-item-desc { font-size: 12px; color: var(--fg-3); line-height: 1.4; }

/* ───── Buttons ───── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-radius: 10px;
  font-family: var(--sans); font-size: 14px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s, color .2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent); color: var(--accent-ink);
  box-shadow: 0 0 0 1px var(--accent), 0 8px 28px -8px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px var(--accent), 0 16px 40px -10px var(--accent-glow);
}
.btn-ghost {
  background: transparent; color: var(--fg);
  border-color: var(--line-2);
}
.btn-ghost:hover { background: var(--surface); }
.btn-arrow { transition: transform .2s; }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ───── Hero tags ───── */
.hero-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 24px; margin-bottom: 4px;
}
.hero-tag {
  padding: 7px 14px; border-radius: 99px;
  border: 1px solid rgba(2,255,148,0.18);
  background: rgba(2,255,148,0.05);
  color: var(--fg-2);
  font-size: 13px; font-weight: 500;
  letter-spacing: 0.01em;
  transition: border-color .2s, color .2s, background .2s;
}
.hero-tag:hover {
  border-color: rgba(2,255,148,0.45);
  color: var(--accent);
  background: rgba(2,255,148,0.09);
}

/* ───── Hero ───── */
.hero {
  position: relative; z-index: 1;
  padding: 180px 0 112px;
}
.hero-inner {
  display: flex; flex-direction: column; gap: 36px;
  max-width: 800px;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-left { display: flex; flex-direction: column; gap: 32px; }
.hero-vsl-wrap {
  position: relative; border-radius: 20px; overflow: hidden;
  border: 1px solid rgba(2,255,148,0.12);
  box-shadow: 0 0 0 1px rgba(2,255,148,0.04), 0 32px 80px -24px rgba(0,0,0,.85);
  background: #000;
}
.hero-vsl-wrap video {
  display: block; width: 100%; max-height: 480px;
  object-fit: contain;
}
.vsl-unmute-btn {
  position: absolute; bottom: 12px; right: 12px;
  display: flex; align-items: center; gap: 6px;
  padding: 7px 13px; border-radius: 99px;
  background: rgba(0,0,0,.65); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.15);
  color: #fff; font-size: 12px; font-weight: 500;
  cursor: pointer; transition: opacity .2s;
}
.vsl-unmute-btn.hidden { display: none; }

.hero-cta-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* ───── Stats ───── */
.stats-row {
  display: flex; gap: 52px; flex-wrap: wrap;
  padding: 36px 0 0;
  border-top: 1px solid var(--line);
}
.stat-item { display: flex; flex-direction: column; gap: 5px; }
.stat-item .n {
  font-family: var(--display); font-weight: 700;
  font-size: 38px; letter-spacing: -0.04em; line-height: 1;
  color: var(--fg);
}
.stat-item .l {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .12em; text-transform: uppercase; color: var(--fg-3);
}

/* ───── Section header ───── */
.sect-head {
  display: flex; flex-direction: column; gap: 20px;
  margin-bottom: 56px; max-width: 720px;
}
.sect-head.center {
  margin-left: auto; margin-right: auto;
  text-align: center; align-items: center;
}

/* ───── Services grid (homepage) ───── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.services-grid .service-card:last-child:nth-child(odd) {
  grid-column: span 2;
  max-width: 50%;
}

.service-card {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(155deg, var(--surface), var(--bg-2));
  border-radius: 20px;
  padding: 32px;
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  display: flex; flex-direction: column; gap: 14px;
}
.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--line-2);
  box-shadow: 0 24px 64px -20px rgba(0,0,0,.55);
}
.service-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 0%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 60%);
  pointer-events: none;
}
.service-card-icon { font-size: 30px; line-height: 1; }
.service-card-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--accent);
}
.service-card h3 {
  font-family: var(--display); font-weight: 700;
  font-size: 22px; letter-spacing: -0.025em; line-height: 1.15;
  margin: 0;
}
.service-card p {
  color: var(--fg-2); font-size: 14px; line-height: 1.6;
  margin: 0 0 auto;
}
.service-card-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent);
  margin-top: 8px;
  transition: gap .2s;
}
.service-card:hover .service-card-link { gap: 10px; }

/* ───── Features grid (service pages) ───── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature-item {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 16px;
  padding: 28px;
  display: flex; flex-direction: column; gap: 12px;
  transition: border-color .25s, background .25s, transform .25s;
}
.feature-item:hover {
  border-color: var(--line-2);
  background: var(--surface-2);
  transform: translateY(-2px);
}
.feature-item .fi-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--accent);
}
.feature-item h4 {
  font-family: var(--display); font-weight: 700;
  font-size: 17px; letter-spacing: -0.018em;
  margin: 0; line-height: 1.25;
}
.feature-item p {
  color: var(--fg-2); font-size: 14px; line-height: 1.55;
  margin: 0;
}

/* ───── Approach cards (3 cols) ───── */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.approach-card {
  border: 1px solid var(--line);
  background: linear-gradient(155deg, var(--surface), var(--bg-2));
  border-radius: 20px;
  padding: 32px;
  display: flex; flex-direction: column; gap: 14px;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.approach-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-2);
  box-shadow: 0 20px 48px -16px rgba(0,0,0,.5);
}
.approach-card .ac-tag {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--accent);
}
.approach-card h4 {
  font-family: var(--display); font-weight: 700;
  font-size: 21px; letter-spacing: -0.022em; margin: 0; line-height: 1.15;
}
.approach-card p {
  color: var(--fg-2); font-size: 14px; line-height: 1.6; margin: 0;
}

/* ───── About split ───── */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

/* ───── CTA section ───── */
.cta {
  position: relative; border: 1px solid var(--line); border-radius: 24px; overflow: hidden;
  padding: 80px 56px;
  background: linear-gradient(140deg, var(--surface), var(--bg-2));
  text-align: center;
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 110%, var(--accent-glow), transparent 55%);
  opacity: .8;
}
.cta::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(to right, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, transparent, #000 60%);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 60%);
  opacity: .4;
}
.cta > * { position: relative; z-index: 1; }

/* ───── Footer ───── */
.footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--line);
  padding: 48px 0 64px;
  font-family: var(--mono); font-size: 12px;
  color: var(--fg-3); letter-spacing: .04em;
}
.footer-row {
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px; flex-wrap: wrap;
}
.footer a { transition: color .2s; }
.footer a:hover { color: var(--fg-2); }

/* ───── Utility spacing ───── */
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

/* ───── Responsive ───── */
@media (max-width: 1024px) {
  .services-grid .service-card:last-child:nth-child(odd) {
    grid-column: auto;
    max-width: none;
  }
}

@media (max-width: 900px) {
  .about-split { grid-template-columns: 1fr; gap: 40px; }
  .hero-split  { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 720px) {
  .nav { padding: 0 20px; }
  .nav-links { display: none; }
  .nav .btn { padding: 9px 14px; font-size: 12px; border-radius: 8px; gap: 6px; }
  .nav-logo-img { height: 20px; }
  .services-grid  { grid-template-columns: 1fr; }
  .approach-grid  { grid-template-columns: 1fr; }
  .features-grid  { grid-template-columns: 1fr; }
  .hero { padding: 140px 0 72px; }
  .section { padding: 64px 0; }
}

@media (max-width: 600px) {
  .hero-inner { gap: 24px; }
  .h1 { font-size: clamp(28px, 8vw, 36px); line-height: 1.08; }
  .h2 { font-size: clamp(24px, 6.5vw, 32px); }
  .lead { font-size: 16px; }
  .section { padding: 56px 0; }
  .stats-row { gap: 28px; }
  .stat-item .n { font-size: 30px; }
  .cta { padding: 48px 28px; border-radius: 18px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .sect-head { margin-bottom: 36px; gap: 16px; }
}

@media (max-width: 420px) {
  .features-grid { grid-template-columns: 1fr; }
}