/* ============================================================
   COMPONENTS.CSS — Nav, Footer, Botones, Cards, WhatsApp
   ============================================================ */

/* ── Botones ── */
.btn-primary {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--grad);
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: 2px;
  cursor: pointer;
  display: inline-block;
  font-weight: 500;
  transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.85; }

.btn-outline {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  color: var(--cyan);
  border: 1px solid rgba(0,207,255,0.3);
  padding: 12px 28px;
  border-radius: 2px;
  cursor: pointer;
  display: inline-block;
  transition: all 0.2s;
}
.btn-outline:hover { border-color: var(--cyan); background: rgba(0,207,255,0.07); }

/* ── Navbar ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}
.nav-logo-wrap { text-decoration: none; }
.nav-logo {
  font-family: var(--display);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-tagline {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray);
  margin-top: 2px;
}
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--cyan); }
.nav-right { display: flex; align-items: center; gap: 1.5rem; }
.nav-cta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--grad);
  color: #fff;
  border: none;
  padding: 8px 18px;
  border-radius: 2px;
  cursor: pointer;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.85; }

/* Lang switcher */
.nav-lang { display: flex; gap: 6px; align-items: center; }
.nav-lang a {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  transition: color 0.2s;
}
.nav-lang a.active { color: var(--cyan); }
.nav-lang span { color: var(--border); font-size: 10px; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: rgba(10,10,10,0.98);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  padding: 1.5rem 2rem;
  flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--cyan); }
.mobile-menu .mob-cta {
  margin-top: 1rem;
  background: var(--grad);
  color: #fff;
  padding: 12px 0;
  border-radius: 2px;
  text-align: center;
  border-bottom: none;
}
.mobile-lang {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}
.mobile-lang a {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gray);
  padding: 0;
  border: none;
}
.mobile-lang a.active { color: var(--cyan); }

/* ── Cards base ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2px;
  background: var(--border);
}
.card {
  background: var(--surface);
  padding: 2.5rem 2rem;
  transition: background 0.2s;
  display: flex;
  flex-direction: column;
}
.card:hover { background: var(--surface2); }
.card-icon {
  width: 44px; height: 44px;
  background: rgba(0,207,255,0.06);
  border: 1px solid rgba(0,207,255,0.12);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem;
  flex-shrink: 0;
}
.card-icon svg { width: 20px; height: 20px; stroke: var(--cyan); fill: none; stroke-width: 1.5; }
.card h3 {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
}
.card p {
  font-family: var(--body);
  font-size: 0.875rem;
  color: var(--gray);
  line-height: 1.8;
  flex: 1;
}
.card-link {
  margin-top: 1.5rem;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}
.card-link:hover { gap: 10px; }

/* ── Footer ── */
footer {
  background: #050505;
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-logo {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-sub {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.2);
  margin-top: 3px;
}
.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.footer-links a {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.2);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--cyan); }
.footer-copy {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.12);
  text-transform: uppercase;
  text-align: right;
  line-height: 1.8;
}
.footer-ai-note {
  width: 100%;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 9px;
  color: rgba(255,255,255,0.1);
  letter-spacing: 0.08em;
  text-align: center;
}

/* ── WhatsApp ── */
.wa-btn {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 200;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #25D366;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.wa-btn:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,0.55); }
.wa-btn svg { width: 28px; height: 28px; fill: #fff; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links, .nav-cta, .nav-lang { display: none; }
  .hamburger { display: flex; }
  nav { padding: 0 1.25rem; }
  .cards-grid { grid-template-columns: 1fr; }
  .card { padding: 2rem 1.5rem; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer-links { display: none; }
  .footer-copy { text-align: left; }
  .wa-btn { bottom: 1.5rem; right: 1.5rem; width: 50px; height: 50px; }
  .wa-btn svg { width: 24px; height: 24px; }
}

/* ── Stack items ── */
.stack-item {
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color 0.2s;
  cursor: default;
}
.stack-item:hover { color: var(--white); }
.stack-item::before {
  content: '';
  width: 5px; height: 5px;
  background: var(--cyan);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Service card — toda la card es clickeable */
.service-card {
  position: relative;
  cursor: pointer;
}
.service-card .card-cover-link {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
}
.service-card .card-link {
  position: relative;
  z-index: 2;
}
.service-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}

/* ── Service tags ── */
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0.75rem 0 1rem;
}
.service-tags span {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(0,207,255,0.2);
  border-radius: 4px;
  padding: 3px 8px;
  background: rgba(0,207,255,0.04);
}
.service-icon {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}
.service-card.smartnode {
  border-color: rgba(123,45,255,0.25);
  background: linear-gradient(135deg, rgba(123,45,255,0.04), rgba(0,101,255,0.04));
}
.service-card.smartnode:hover {
  border-color: rgba(123,45,255,0.5);
}
.service-card.smartnode .service-tags span {
  color: var(--violet);
  border-color: rgba(123,45,255,0.25);
  background: rgba(123,45,255,0.05);
}

/* ── Infrastructure with Purpose ── */
.iwp-section {
  background: var(--surface);
  padding: 6rem 2rem;
  border-top: 1px solid var(--border);
}
.iwp-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: start;
}
.iwp-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.85;
  margin-top: 1.25rem;
}
.iwp-pillars {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.iwp-pillar {
  padding: 1.4rem 1.75rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.iwp-pillar:last-child { border-bottom: none; }
.iwp-pillar:hover { background: rgba(0,207,255,0.03); }
.iwp-pillar-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.4rem;
}
.iwp-pillar-head strong {
  font-family: var(--display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
}
.iwp-num {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  flex-shrink: 0;
}
.iwp-pillar p {
  font-size: 0.85rem;
  color: var(--gray);
  line-height: 1.65;
  padding-left: 2.25rem;
}
@media(max-width: 768px) {
  .iwp-inner { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ── Cases / Proyectos ── */
.cases-section {
  background: var(--black);
  padding: 6rem 2rem;
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 2.5rem;
}
.case-card {
  background: var(--surface);
  padding: 2rem 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: background 0.2s;
}
.case-card:hover { background: var(--surface2); }
.case-tag {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  opacity: 0.8;
}
.case-card h3 {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
}
.case-card p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  flex: 1;
}
.case-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 0.5rem;
}
.case-stack span {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
}
@media(max-width: 640px) {
  .cases-grid { grid-template-columns: 1fr; }
}

/* ── ZahIA Section ── */
.zahia-section {
  background: var(--black);
  padding: 6rem 2rem;
  border-top: 1px solid var(--border);
}
.zahia-inner {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 5rem;
  align-items: center;
}
.zahia-img-col {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0,207,255,0.07) 0%, rgba(123,45,255,0.07) 100%);
  border: 1px solid rgba(0,207,255,0.18);
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: 0 0 60px rgba(0,207,255,0.08), inset 0 0 40px rgba(0,0,0,0.3);
}
.zahia-portrait {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}
.zahia-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.85;
  margin: 1rem 0 1.5rem;
}
.zahia-features {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-bottom: 2rem;
}
.zahia-feat {
  font-family: var(--body);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.zahia-feat-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  flex-shrink: 0;
  box-shadow: 0 0 8px rgba(0,207,255,0.6);
}
.zahia-cta { cursor: pointer; border: none; }
@media(max-width: 900px) {
  .zahia-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .zahia-img-col { max-width: 320px; margin: 0 auto; }
}

/* ── Stack badges ── */
.stack-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}
.stack-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.stack-group-title {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  opacity: 0.7;
}
.stack-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.sbadge {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 5px 12px;
  background: rgba(255,255,255,0.03);
  transition: border-color 0.2s, color 0.2s;
}
.sbadge:hover {
  border-color: rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.9);
}
.sbadge.cyan {
  color: rgba(0,207,255,0.8);
  border-color: rgba(0,207,255,0.2);
  background: rgba(0,207,255,0.04);
}
.sbadge.cyan:hover {
  border-color: rgba(0,207,255,0.5);
  color: var(--cyan);
}

/* ── SmartNode ── */
.smartnode-section {
  background: var(--black);
  padding: 6rem 2rem;
  border-top: 1px solid var(--border);
}
.smartnode-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}
.smartnode-subtitle {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--violet);
  margin: 0.5rem 0 1rem;
}
.smartnode-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.85;
  margin-bottom: 1.5rem;
}
.smartnode-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.sn-tag {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--violet);
  border: 1px solid rgba(123,45,255,0.3);
  border-radius: 4px;
  padding: 4px 10px;
  background: rgba(123,45,255,0.06);
}
.smartnode-caps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.sn-cap {
  background: var(--surface);
  padding: 1.25rem 1.4rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: background 0.2s;
}
.sn-cap:hover { background: var(--surface2); }
.sn-cap-icon {
  font-size: 1rem;
  color: var(--violet);
  opacity: 0.7;
  flex-shrink: 0;
  margin-top: 2px;
}
.sn-cap-body strong {
  font-family: var(--display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
  display: block;
  margin-bottom: 0.3rem;
}
.sn-cap-body p {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.6;
}
@media(max-width: 768px) {
  .smartnode-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .smartnode-caps { grid-template-columns: 1fr; }
}

/* ── Built with AI ── */
.built-ai-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
}
.built-ai-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}
.built-ai-title {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.6rem;
}
.built-ai-desc {
  font-size: 0.85rem;
  color: var(--gray);
  line-height: 1.75;
  max-width: 560px;
}
.built-ai-badge {
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.5rem;
  background: rgba(0,207,255,0.03);
  white-space: nowrap;
  flex-shrink: 0;
}
.bai-icon {
  font-size: 1.5rem;
  color: var(--cyan);
  opacity: 0.7;
}
.bai-label {
  font-family: var(--display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
}
.bai-sub {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--gray);
  margin-top: 3px;
}
@media(max-width: 768px) {
  .built-ai-inner { flex-direction: column; align-items: flex-start; }
  .built-ai-badge { white-space: normal; }
}