/* ============ RK Software Solutions — raimondk.com ============ */
:root {
  --bg: #070b14;
  --bg-alt: #0b1120;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --text: #e7ecf5;
  --text-dim: #97a3b8;
  --accent: #6366f1;
  --accent-2: #22d3ee;
  --accent-3: #a78bfa;
  --whatsapp: #25d366;
  --radius: 16px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { color: var(--text-dim); }
a { color: inherit; text-decoration: none; }
b, strong { color: var(--text); }
.link { color: var(--accent-2); }
.center { text-align: center; }

.container { width: min(1140px, 92%); margin: 0 auto; }
.container.narrow { width: min(820px, 92%); }
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head .lead { margin-top: 14px; }
.lead { font-size: 1.08rem; }
.grad {
  background: linear-gradient(92deg, var(--accent-2), var(--accent), var(--accent-3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.microcopy { font-size: 0.85rem; margin-top: 14px; color: var(--text-dim); }

/* ---- badges & buttons ---- */
.badge {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-dim); margin-bottom: 18px;
}
.badge-accent { color: var(--accent-2); border-color: rgba(34, 211, 238, 0.35); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 12px; font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer; transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  font-family: var(--font-body);
}
.btn:hover { transform: translateY(-2px); }
.btn-lg { padding: 15px 30px; font-size: 1rem; }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-primary {
  background: linear-gradient(92deg, var(--accent), var(--accent-3));
  color: #fff; box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
}
.btn-primary:hover { box-shadow: 0 12px 32px rgba(99, 102, 241, 0.5); }
.btn-ghost { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--surface-strong); }
.btn-whatsapp { background: var(--whatsapp); color: #06250f; box-shadow: 0 8px 24px rgba(37, 211, 102, 0.25); }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 11, 20, 0.82); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-size: 1.05rem; }
.brand-text b { color: var(--accent-2); }
.brand-mark {
  display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 700; font-family: var(--font-head); font-size: 0.95rem;
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.4);
}
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 0.92rem; font-weight: 500; }
.nav-links a:not(.btn):hover { color: var(--accent-2); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* ---- hero ---- */
.hero { position: relative; padding: 110px 0 90px; overflow: hidden; }
.hero-glow {
  position: absolute; inset: -40% -20% auto; height: 130%;
  background:
    radial-gradient(600px 320px at 22% 18%, rgba(99, 102, 241, 0.22), transparent 65%),
    radial-gradient(520px 300px at 78% 8%, rgba(34, 211, 238, 0.14), transparent 65%),
    radial-gradient(700px 380px at 55% 90%, rgba(167, 139, 250, 0.1), transparent 70%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 860px; }
.hero-sub { margin-top: 22px; font-size: 1.12rem; max-width: 640px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-proof {
  list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  margin-top: 54px; padding-top: 34px; border-top: 1px solid var(--border);
}
.hero-proof li { display: grid; gap: 4px; font-size: 0.86rem; color: var(--text-dim); }
.hero-proof b { font-size: 1rem; color: var(--text); font-family: var(--font-head); }

/* ---- product ---- */
.product { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.product-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.checklist { list-style: none; display: grid; gap: 12px; margin: 24px 0; }
.checklist li { padding-left: 30px; position: relative; color: var(--text-dim); }
.checklist li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--accent-2); font-weight: 700;
}
.pricing-row { display: flex; gap: 16px; flex-wrap: wrap; margin: 26px 0 8px; }
.price-card {
  flex: 1; min-width: 200px; display: grid; gap: 4px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px;
}
.price-featured { border-color: rgba(99, 102, 241, 0.55); background: rgba(99, 102, 241, 0.09); position: relative; }
.price-plan { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); font-weight: 600; }
.price-amount { font-family: var(--font-head); font-size: 1.7rem; font-weight: 700; }
.price-amount small { font-size: 0.85rem; color: var(--text-dim); font-weight: 500; }
.price-note { font-size: 0.8rem; color: var(--text-dim); }

.product-visual { position: relative; }
.window {
  background: #0d1424; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; font-size: 0.78rem;
}
.window-bar {
  display: flex; align-items: center; gap: 6px; padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03); border-bottom: 1px solid var(--border);
  color: var(--text-dim); font-size: 0.74rem;
}
.window-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--border); display: inline-block; }
.window-bar i:nth-child(1) { background: #f87171; } .window-bar i:nth-child(2) { background: #fbbf24; } .window-bar i:nth-child(3) { background: #34d399; }
.window-bar span { margin-left: 8px; }
.window-body { padding: 8px 0; }
.row-head, .row { display: grid; grid-template-columns: 1.1fr 1.5fr 1.5fr 0.6fr; gap: 8px; padding: 9px 16px; }
.row-head { color: var(--text-dim); text-transform: uppercase; font-size: 0.66rem; letter-spacing: 0.07em; border-bottom: 1px solid var(--border); }
.row { border-bottom: 1px solid rgba(255, 255, 255, 0.04); color: #c4cddd; font-variant-numeric: tabular-nums; }
.row-ok { color: var(--accent-2); border: none; font-weight: 600; }
.visual-tag {
  position: absolute; bottom: -16px; right: 18px;
  background: linear-gradient(92deg, var(--accent), var(--accent-3));
  padding: 8px 16px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; color: #fff;
  box-shadow: 0 10px 26px rgba(99, 102, 241, 0.4);
}

/* ---- cards servicios ---- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 26px; transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(99, 102, 241, 0.45); background: var(--surface-strong); }
.card-icon { font-size: 1.6rem; margin-bottom: 14px; }
.card h3 { margin-bottom: 8px; }
.card p { font-size: 0.92rem; }

/* ---- steps ---- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.step {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; position: relative;
}
.step-num {
  display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
  font-family: var(--font-head); font-weight: 700; margin-bottom: 16px;
}
.step h3 { margin-bottom: 8px; }
.step p { font-size: 0.92rem; }

/* ---- flow ecosistema ---- */
.flow { display: flex; align-items: stretch; justify-content: center; gap: 18px; flex-wrap: wrap; }
.flow-node {
  flex: 1; min-width: 220px; max-width: 320px; text-align: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; display: grid; gap: 6px;
}
.flow-node b { font-family: var(--font-head); font-size: 1.1rem; }
.flow-node span { font-size: 0.86rem; color: var(--text-dim); }
.flow-arrow { display: grid; place-items: center; color: var(--accent-2); font-size: 1.6rem; font-weight: 700; }

/* ---- faq ---- */
.faq { display: grid; gap: 12px; }
.faq details {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px 22px;
}
.faq summary { cursor: pointer; font-weight: 600; color: var(--text); list-style: none; position: relative; padding-right: 28px; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 0; color: var(--accent-2); font-size: 1.2rem; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin-top: 10px; font-size: 0.94rem; }

/* ---- contacto ---- */
.contact { background: var(--bg-alt); border-top: 1px solid var(--border); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.contact-copy .btn-whatsapp { margin-top: 22px; }
.contact-form {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 28px; display: grid; gap: 16px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: grid; gap: 6px; font-size: 0.84rem; font-weight: 600; color: var(--text-dim); }
.contact-form input, .contact-form select, .contact-form textarea {
  background: rgba(0, 0, 0, 0.3); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; color: var(--text); font-family: var(--font-body); font-size: 0.94rem;
  transition: border-color 0.15s ease;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--accent);
}
.form-status { font-size: 0.9rem; min-height: 1.2em; }
.form-status.ok { color: #34d399; }
.form-status.err { color: #f87171; }

/* ---- footer ---- */
.footer { border-top: 1px solid var(--border); padding: 56px 0 40px; }
.footer-inner { display: grid; gap: 26px; }
.footer-brand { display: flex; gap: 14px; align-items: flex-start; max-width: 560px; }
.footer-brand p { font-size: 0.88rem; margin-top: 4px; }
.footer-links { display: flex; gap: 22px; font-size: 0.9rem; color: var(--text-dim); }
.footer-links a:hover { color: var(--accent-2); }
.footer-legal { font-size: 0.78rem; color: var(--text-dim); }

/* ---- whatsapp float ---- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 60;
  display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%;
  background: var(--whatsapp); font-size: 1.5rem;
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.4);
  transition: transform 0.15s ease;
}
.wa-float:hover { transform: scale(1.08); }

/* ---- reveal animation ---- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---- responsive ---- */
@media (max-width: 960px) {
  .product-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .cards, .steps { grid-template-columns: 1fr 1fr; }
  .flow-arrow { transform: rotate(90deg); width: 100%; }
  .flow-node { max-width: none; }
}
@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .hero { padding: 70px 0 60px; }
  .hero-proof { grid-template-columns: 1fr; gap: 14px; }
  .cards, .steps, .form-row { grid-template-columns: 1fr; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; padding: 20px 6%;
    background: rgba(7, 11, 20, 0.97); border-bottom: 1px solid var(--border); gap: 18px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}