/* ── Variables ─────────────────────────────────────────── */
:root {
  --bg:          #0a1628;
  --bg-card:     #0f2240;
  --bg-card2:    #0d1e38;
  --accent:      #4DB0AD;
  --accent-dim:  #3a9190;
  --accent-glow: rgba(77,176,173,.15);
  --text:        #f1f5f9;
  --text-muted:  #94a3b8;
  --text-dim:    #64748b;
  --border:      rgba(255,255,255,.07);
  --radius:      12px;
  --radius-lg:   20px;
  --nav-h:       68px;
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; }

/* ── Layout helpers ────────────────────────────────────── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}
section { padding: 96px 0; }

/* ── Nav ───────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(10,22,40,.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
nav .container {
  display: flex; align-items: center;
  justify-content: space-between; width: 100%;
}
.nav-logo { height: 40px; width: auto; }
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-icon { height: 40px; width: auto; }
.nav-brand-text {
  display: flex; flex-direction: column; line-height: 1.2;
}
.nav-brand-text strong {
  font-size: 16px; font-weight: 800; letter-spacing: 1px;
  color: var(--text); font-family: 'Inter', system-ui, sans-serif;
}
.nav-brand-text small {
  font-size: 9px; font-weight: 400; letter-spacing: 0.3px;
  color: var(--accent);
}
.nav-links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 14px; font-weight: 500;
  color: var(--text-muted);
  transition: color .2s;
}
.nav-links a:hover { color: var(--text); }
.btn-nav {
  padding: 9px 22px;
  background: var(--accent); color: #fff;
  border-radius: 8px; font-size: 14px; font-weight: 600;
  transition: background .2s, transform .1s;
  white-space: nowrap;
}
.btn-nav:hover { background: var(--accent-dim); transform: translateY(-1px); }

.hamburger {
  display: none; background: none; border: none;
  cursor: pointer; padding: 6px;
  flex-direction: column; gap: 5px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: .3s;
}
.mobile-menu {
  display: none;
  position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: #0d1e38;
  border-bottom: 1px solid var(--border);
  padding: 20px 24px 28px;
  flex-direction: column; gap: 20px;
  z-index: 99;
}
.mobile-menu a {
  font-size: 16px; font-weight: 500; color: var(--text-muted);
  padding: 6px 0; border-bottom: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }

/* ── Hero ──────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 700px 500px at 60% 40%, rgba(77,176,173,.08) 0%, transparent 70%),
    radial-gradient(ellipse 500px 400px at 10% 80%, rgba(14,165,233,.06) 0%, transparent 70%);
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
}
.hero .container {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
  padding-top: 40px; padding-bottom: 40px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: var(--accent-glow);
  border: 1px solid rgba(77,176,173,.3);
  border-radius: 100px; color: var(--accent);
  font-size: 13px; font-weight: 500;
  margin-bottom: 28px;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}
.hero h1 {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}
.hero h1 span { color: var(--accent); }
.hero p {
  font-size: 18px; color: var(--text-muted);
  line-height: 1.7; max-width: 480px; margin-bottom: 40px;
}
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  padding: 14px 28px;
  background: var(--accent); color: #fff;
  border-radius: var(--radius); font-size: 15px; font-weight: 600;
  border: none; cursor: pointer;
  transition: background .2s, transform .1s, box-shadow .2s;
  box-shadow: 0 4px 20px rgba(77,176,173,.25);
}
.btn-primary:hover {
  background: var(--accent-dim); transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(77,176,173,.35);
}
.btn-secondary {
  padding: 14px 28px;
  background: transparent; color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 15px; font-weight: 500; cursor: pointer;
  transition: border-color .2s, background .2s;
}
.btn-secondary:hover {
  border-color: rgba(255,255,255,.2);
  background: rgba(255,255,255,.04);
}

/* Hero visual (right column) */
.hero-visual {
  display: flex; flex-direction: column; gap: 14px;
}
.chat-bubble {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  font-size: 14px; line-height: 1.5;
  max-width: 340px;
}
.chat-bubble.carmenza {
  border-left: 3px solid var(--accent);
  align-self: flex-start;
}
.chat-bubble.user {
  align-self: flex-end;
  background: rgba(77,176,173,.08);
  border-color: rgba(77,176,173,.2);
}
.chat-bubble .sender {
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 1px;
  color: var(--accent); margin-bottom: 6px;
}
.chat-bubble .time {
  font-size: 11px; color: var(--text-dim); margin-top: 6px;
}
.stat-row {
  display: flex; gap: 12px; margin-top: 8px;
}
.stat-pill {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px; padding: 8px 16px;
  font-size: 13px; font-weight: 500;
}
.stat-pill .icon { font-size: 16px; }

/* ── Section headers ───────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--accent); margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800; line-height: 1.15;
  letter-spacing: -1px; margin-bottom: 16px;
}
.section-sub {
  font-size: 17px; color: var(--text-muted);
  max-width: 560px; line-height: 1.7;
}
.text-center { text-align: center; }
.text-center .section-sub { margin: 0 auto; }

/* ── Problem section ───────────────────────────────────── */
.problem { background: var(--bg-card2); }
.problem-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-top: 56px;
}
.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: border-color .2s, transform .2s;
}
.problem-card:hover {
  border-color: rgba(255,255,255,.15);
  transform: translateY(-3px);
}
.problem-card .icon {
  width: 48px; height: 48px;
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.2);
  border-radius: 12px; display: flex; align-items: center;
  justify-content: center; font-size: 22px; margin-bottom: 20px;
}
.problem-card h3 {
  font-size: 18px; font-weight: 700; margin-bottom: 10px;
}
.problem-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* ── Solution section ──────────────────────────────────── */
.solution-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 72px; align-items: center; margin-top: 24px;
}
.solution-text p {
  font-size: 16px; color: var(--text-muted);
  line-height: 1.75; margin-bottom: 20px;
}
.solution-points { list-style: none; margin-top: 28px; }
.solution-points li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px 0; border-bottom: 1px solid var(--border);
  font-size: 15px;
}
.solution-points li:last-child { border-bottom: none; }
.solution-points .check {
  color: var(--accent); font-size: 18px; margin-top: 1px;
  flex-shrink: 0;
}
.solution-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex; flex-direction: column; gap: 14px;
}
.sv-row {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px;
}
.sv-icon {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--accent-glow);
  border: 1px solid rgba(77,176,173,.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.sv-info { flex: 1; }
.sv-info .label { font-size: 13px; font-weight: 600; }
.sv-info .sub { font-size: 12px; color: var(--text-muted); }
.sv-badge {
  font-size: 11px; font-weight: 600; padding: 4px 10px;
  border-radius: 100px;
}
.sv-badge.ok { background: rgba(77,176,173,.1); color: var(--accent); }
.sv-badge.warn { background: rgba(251,191,36,.1); color: #fbbf24; }

/* ── Features ──────────────────────────────────────────── */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; margin-top: 56px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.feature-card:hover {
  border-color: rgba(77,176,173,.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(77,176,173,.08);
}
.feature-card .f-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--accent-glow);
  border: 1px solid rgba(77,176,173,.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 18px;
}
.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* ── WhatsApp differentiator ───────────────────────────── */
.wapp { background: var(--bg-card2); }
.wapp-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 72px; align-items: center;
}
.wapp-stats {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 16px; margin-top: 32px;
}
.wapp-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.wapp-stat .num {
  font-size: 32px; font-weight: 800;
  color: var(--accent); line-height: 1;
}
.wapp-stat .desc { font-size: 13px; color: var(--text-muted); margin-top: 6px; }
.wapp-reasons { margin-top: 28px; display: flex; flex-direction: column; gap: 14px; }
.reason {
  display: flex; gap: 14px; align-items: flex-start;
  font-size: 15px;
}
.reason .r-icon {
  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
  background: var(--accent-glow); border: 1px solid rgba(77,176,173,.2);
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.reason .r-text strong { display: block; font-weight: 600; margin-bottom: 2px; }
.reason .r-text span { font-size: 14px; color: var(--text-muted); }

/* ── Contact ───────────────────────────────────────────── */
.contact-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 72px; align-items: start; margin-top: 16px;
}
.contact-info p { font-size: 16px; color: var(--text-muted); line-height: 1.7; margin-bottom: 32px; }
.contact-detail {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 0; border-bottom: 1px solid var(--border);
  font-size: 15px;
}
.contact-detail:last-child { border-bottom: none; }
.contact-detail .cd-icon { font-size: 20px; width: 28px; text-align: center; }
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--text-muted); margin-bottom: 8px; letter-spacing: .3px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  font-size: 15px; font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(77,176,173,.5);
  box-shadow: 0 0 0 3px rgba(77,176,173,.1);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-group select option { background: var(--bg-card); }
.form-submit {
  width: 100%; padding: 14px;
  background: var(--accent); color: #fff;
  border: none; border-radius: var(--radius);
  font-size: 15px; font-weight: 600; cursor: pointer;
  font-family: inherit;
  transition: background .2s, transform .1s;
}
.form-submit:hover { background: var(--accent-dim); transform: translateY(-1px); }
.form-success {
  display: none; text-align: center; padding: 20px;
  color: var(--accent); font-weight: 600; font-size: 16px;
}

/* ── Footer ────────────────────────────────────────────── */
footer {
  background: var(--bg-card2);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}
.footer-content {
  display: flex; justify-content: space-between;
  align-items: flex-start; gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-wrap { margin-bottom: 14px; }
.footer-brand .nav-icon { height: 36px; }
.footer-brand p {
  font-size: 13px; color: var(--text-muted); max-width: 260px; line-height: 1.6;
}
.footer-links h4 {
  font-size: 13px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1.2px; color: var(--text-dim); margin-bottom: 16px;
}
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: var(--text-muted); transition: color .2s; }
.footer-links a:hover { color: var(--text); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; border-top: 1px solid var(--border);
  font-size: 13px; color: var(--text-dim);
}
.footer-bottom a { color: var(--accent); }
.footer-bottom a:hover { text-decoration: underline; }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { display: none; }
  .hero h1 { font-size: 40px; }
  .problem-grid { grid-template-columns: 1fr; gap: 16px; }
  .solution-layout { grid-template-columns: 1fr; gap: 40px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .wapp-layout { grid-template-columns: 1fr; gap: 40px; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer-content { flex-direction: column; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
}
@media (max-width: 640px) {
  section { padding: 64px 0; }
  .nav-links { display: none; }
  .btn-nav { display: none; }
  .hamburger { display: flex; }
  .features-grid { grid-template-columns: 1fr; }
  .wapp-stats { grid-template-columns: 1fr 1fr; }
  .contact-form { padding: 24px 20px; }
}