:root {
  --bg: #0a0a0b;
  --bg-elev: #111113;
  --bg-card: #141417;
  --border: #1f1f24;
  --border-strong: #2a2a31;
  --fg: #f2f2f3;
  --fg-muted: #9a9aa3;
  --fg-dim: #6b6b74;
  --accent: #7c5cff;
  --accent-2: #22d3ee;
  --accent-glow: rgba(124, 92, 255, 0.35);
  --max: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
code, .mono { font-family: 'JetBrains Mono', monospace; }

.bg-fx {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.bg-fx::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  filter: blur(60px);
}
.grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center top, black 30%, transparent 70%);
}

nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 11, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 800;
  font-size: 13px;
  box-shadow: 0 0 20px var(--accent-glow);
}
.nav-links {
  display: flex;
  gap: 32px;
  font-size: 14px;
  color: var(--fg-muted);
}
.nav-links a:hover { color: var(--fg); }
.nav-cta {
  padding: 8px 16px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: transform 0.15s;
}
.nav-cta:hover { transform: translateY(-1px); }

@media (max-width: 720px) {
  .nav-links { display: none; }
}

.lang-switch {
  display: inline-flex;
  gap: 0;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  margin-right: 12px;
}
.lang-switch a {
  padding: 7px 10px;
  color: var(--fg-muted);
  background: var(--bg-elev);
  transition: background 0.15s, color 0.15s;
  letter-spacing: 0.05em;
}
.lang-switch a:hover { color: var(--fg); }
.lang-switch a.active {
  background: var(--fg);
  color: var(--bg);
}
.nav-right {
  display: flex;
  align-items: center;
}
@media (max-width: 540px) {
  .lang-switch { display: none; }
}

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 120px 24px 100px;
  text-align: center;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 13px;
  color: var(--fg-muted);
  background: var(--bg-elev);
  margin-bottom: 32px;
}
.chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
}
h1 {
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
h1 .grad {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--fg-muted);
  max-width: 640px;
  margin: 0 auto 40px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  padding: 14px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary {
  background: var(--fg);
  color: var(--bg);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(255,255,255,0.1); }
.btn-ghost {
  border-color: var(--border-strong);
  color: var(--fg);
  background: var(--bg-elev);
}
.btn-ghost:hover { border-color: var(--fg-muted); }

section { padding: 100px 24px; }
.container { max-width: var(--max); margin: 0 auto; }
.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}
h2 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 20px;
}
.section-sub {
  color: var(--fg-muted);
  font-size: 17px;
  max-width: 600px;
  margin-bottom: 60px;
}

.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.service {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.service::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.2s;
}
.service:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
}
.service:hover::before { opacity: 1; }
.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  color: var(--accent-2);
}
.service h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.service p {
  color: var(--fg-muted);
  font-size: 14.5px;
  line-height: 1.6;
}

.stack-row {
  margin-top: 80px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: center;
  justify-content: center;
  color: var(--fg-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}
.stack-row span {
  transition: color 0.2s;
}
.stack-row span:hover { color: var(--fg); }

.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.step {
  padding: 28px;
  border-left: 2px solid var(--border-strong);
  position: relative;
}
.step-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--accent-2);
  margin-bottom: 12px;
}
.step h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}
.step p {
  color: var(--fg-muted);
  font-size: 14.5px;
}

.contact-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  filter: blur(60px);
  opacity: 0.6;
  pointer-events: none;
}
.contact-card > * { position: relative; z-index: 1; }
.contact-methods {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
}

footer {
  border-top: 1px solid var(--border);
  padding: 50px 24px 40px;
  background: var(--bg-elev);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-start;
}
.footer-info {
  color: var(--fg-dim);
  font-size: 13px;
  line-height: 1.8;
  max-width: 280px;
}
.footer-info strong { color: var(--fg-muted); font-weight: 500; }
.footer-info a:hover { color: var(--fg); }
.footer-bottom {
  max-width: var(--max);
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--fg-dim);
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
}

.wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: white;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37, 211, 102, 0.5);
  transition: transform 0.2s, box-shadow 0.2s;
  animation: waPulse 2.4s infinite;
}
.wa-float:hover {
  transform: scale(1.08);
  animation: none;
  box-shadow: 0 15px 40px rgba(37, 211, 102, 0.6);
}
@keyframes waPulse {
  0%, 100% { box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37, 211, 102, 0.5); }
  50% { box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4), 0 0 0 14px rgba(37, 211, 102, 0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero > * { animation: fadeUp 0.8s ease-out backwards; }
.hero .chip { animation-delay: 0.05s; }
.hero h1 { animation-delay: 0.15s; }
.hero p { animation-delay: 0.25s; }
.hero-actions { animation-delay: 0.35s; }

/* Legal / content pages */
.page-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px 24px 40px;
  text-align: center;
}
.page-header h1 {
  font-size: clamp(36px, 5vw, 52px);
}
.page-header .eyebrow {
  justify-content: center;
}
.content {
  max-width: 820px;
  margin: 0 auto;
  padding: 20px 24px 100px;
  color: var(--fg-muted);
  font-size: 16px;
}
.content h2 {
  font-size: 24px;
  color: var(--fg);
  margin: 48px 0 16px;
  letter-spacing: -0.01em;
}
.content h2:first-child { margin-top: 0; }
.content h3 {
  font-size: 18px;
  color: var(--fg);
  font-weight: 600;
  margin: 28px 0 10px;
}
.content p { margin-bottom: 16px; line-height: 1.75; }
.content ul, .content ol {
  margin: 0 0 16px 20px;
  padding-left: 20px;
}
.content li { margin-bottom: 8px; line-height: 1.7; }
.content strong { color: var(--fg); font-weight: 600; }
.content a {
  color: var(--accent-2);
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}
.content a:hover { border-color: var(--accent-2); }
.content .updated {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--fg-dim);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  margin-bottom: 32px;
}
.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
}
.info-card strong { color: var(--fg); }

.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 40px 0;
}
.support-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.support-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.support-card h3 {
  font-size: 16px;
  color: var(--fg);
  font-weight: 600;
  margin-bottom: 8px;
}
.support-card p {
  font-size: 14px;
  color: var(--fg-muted);
  margin-bottom: 16px;
}
.support-card .support-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--accent-2);
  word-break: break-all;
}

/* Demos / projects grid */
.demos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 20px;
}
.demo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
  position: relative;
}
.demo-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}
.demo-art {
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 48px;
  letter-spacing: -0.03em;
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}
.demo-art::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
}
.demo-art::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(255,255,255,0.2), transparent 60%);
}
.demo-art span {
  position: relative;
  z-index: 1;
}
.demo-art.art-solvex { background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%); }
.demo-art.art-linkora { background: linear-gradient(135deg, #ec4899 0%, #f97316 100%); }
.demo-art.art-frigoo { background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%); }
.demo-art.art-contrato { background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 100%); }
.demo-art.art-ashborne { background: linear-gradient(135deg, #78350f 0%, #991b1b 100%); }
.demo-art.art-marketing { background: linear-gradient(135deg, #7c3aed 0%, #db2777 100%); }
.demo-art.art-medtrack { background: linear-gradient(135deg, #0891b2 0%, #14b8a6 100%); }
.demo-art.art-tools { background: linear-gradient(135deg, #334155 0%, #64748b 100%); }

.demo-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 14px;
}
.demo-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.demo-head h3 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.demo-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--fg-muted);
  background: var(--bg-elev);
  white-space: nowrap;
}
.demo-status.live {
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.08);
}
.demo-status.beta {
  color: #facc15;
  border-color: rgba(250, 204, 21, 0.35);
  background: rgba(250, 204, 21, 0.08);
}
.demo-status.dev {
  color: var(--accent-2);
  border-color: rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.08);
}
.demo-desc {
  color: var(--fg-muted);
  font-size: 14.5px;
  line-height: 1.65;
  flex: 1;
}
.demo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.demo-tags span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--fg-dim);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
}
.demo-actions {
  display: flex;
  gap: 10px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.demo-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border-strong);
  color: var(--fg);
  background: var(--bg-elev);
  transition: border-color 0.15s, transform 0.15s;
}
.demo-btn:hover {
  border-color: var(--fg-muted);
  transform: translateY(-1px);
}
.demo-btn.primary {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}
.demo-btn.primary:hover { box-shadow: 0 8px 20px rgba(255, 255, 255, 0.08); }
.demo-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}