*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --brand:#1D4ED8;--brand-dark:#1e3a8a;--brand-light:#EFF6FF;
  --accent:#F59E0B;--success:#10B981;
  --bg:#ffffff;--bg2:#F8FAFC;--bg3:#F1F5F9;
  --text:#0F172A;--text-muted:#64748B;--text-inv:#ffffff;
  --border:#E2E8F0;--border2:#CBD5E1;
  --card:#ffffff;--nav-bg:rgba(255,255,255,0.92);
  --shadow:0 4px 24px rgba(0,0,0,0.08);
  --radius:12px;--radius-lg:20px;
}
[data-theme="dark"]{
  --bg:#0F172A;--bg2:#1E293B;--bg3:#1E293B;
  --text:#F1F5F9;--text-muted:#94A3B8;
  --border:#334155;--border2:#475569;
  --card:#1E293B;--nav-bg:rgba(15,23,42,0.92);
  --shadow:0 4px 24px rgba(0,0,0,0.4);
  --brand-light:#1e3a8a;
}
html{scroll-behavior:smooth}
body{font-family:'Sora',sans-serif;color:var(--text);background:var(--bg);line-height:1.6;overflow-x:hidden;transition:background .3s,color .3s}

/* NAV */
nav{position:sticky;top:0;z-index:200;background:var(--nav-bg);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 5%;display:flex;align-items:center;justify-content:space-between;height:64px;transition:background .3s}
.nav-logo{font-size:20px;font-weight:800;color:var(--brand);letter-spacing:-.5px;display:flex;align-items:center;gap:6px;text-decoration:none}
.nav-logo .dot{color:var(--accent)}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  transition: color .2s;
}
.nav-links a:hover{color:var(--brand)}
.nav-right{display:flex;align-items:center;gap:12px}
.theme-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  background: var(--bg2);
  color: var(--text);
  font-family: 'Sora', sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all .25s;
  white-space: nowrap;
}
.theme-btn:hover {
  border-color: var(--brand);
  background: var(--brand-light);
  color: var(--brand);
  transform: scale(1.04);
}
.theme-btn .theme-icon {
  font-size: 15px;
  transition: transform .4s;
}
.theme-btn:hover .theme-icon {
  transform: rotate(20deg);
}
.nav-cta{background:var(--brand);color:#fff;border:none;padding:9px 18px;border-radius:8px;font-family:'Sora',sans-serif;font-size:13px;font-weight:600;cursor:pointer;text-decoration:none;transition:background .2s,transform .15s;white-space:nowrap}
.nav-cta:hover{background:var(--brand-dark);transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-menu{display:none;position:fixed;top:64px;left:0;right:0;background:var(--nav-bg);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:20px 5%;flex-direction:column;gap:4px;z-index:199;transition:background .3s}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:15px;font-weight:500;color:var(--text-muted);text-decoration:none;padding:10px 0;border-bottom:1px solid var(--border);transition:color .2s}
.mobile-menu a:last-child{border:none}
.mobile-menu a:hover{color:var(--brand)}
.mobile-cta{margin-top:8px;background:var(--brand);color:#fff;padding:12px;border-radius:8px;text-align:center;font-weight:700;text-decoration:none;font-size:14px}

/* HERO */
.hero{min-height:90vh;display:flex;align-items:center;padding:80px 5% 60px;position:relative;overflow:hidden}
.hero-bg-light{position:absolute;inset:0;z-index:0;background:linear-gradient(135deg,#EFF6FF 0%,#FEF3C7 50%,#ECFDF5 100%);transition:opacity .3s}
.hero-bg-dark{position:absolute;inset:0;z-index:0;background:linear-gradient(135deg,#0F172A 0%,#1e3a8a 50%,#064e3b 100%);opacity:0;transition:opacity .3s}
[data-theme="dark"] .hero-bg-light{opacity:0}
[data-theme="dark"] .hero-bg-dark{opacity:1}
.hero-grid{position:absolute;inset:0;z-index:1;background-image:radial-gradient(circle,var(--border2) 1px,transparent 1px);background-size:40px 40px;opacity:.3}
.hero-content{position:relative;z-index:2;max-width:1200px;margin:0 auto;width:100%;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero-badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:24px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--border);border-radius:100px;padding:6px 16px 6px 8px;font-size:12px;font-weight:600;color:var(--brand);box-shadow:var(--shadow)}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--success);animation:pulse 2s infinite}
.hero-verified{display:inline-flex;align-items:center;gap:6px;background:var(--brand-light);border:1px solid transparent;border-radius:100px;padding:6px 14px 6px 6px;font-size:12px;font-weight:600;color:var(--brand)}
.hero-verified-logo{width:20px;height:20px;min-width:20px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:8px;font-weight:800;letter-spacing:-.5px}
[data-theme="dark"] .hero-badge{color:#DBEAFE;background:rgba(15,23,42,.55);border-color:rgba(255,255,255,.14)}
[data-theme="dark"] .hero-verified{background:rgba(99,149,255,.18);color:#DBEAFE}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.3)}}
.hero h1{font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.08;letter-spacing:-1.5px;color:var(--text);margin-bottom:20px}
.hero h1 em{font-style:italic;font-family:'DM Serif Display',serif;color:var(--brand)}
.hero-sub{font-size:16px;color:var(--text-muted);max-width:480px;margin-bottom:32px;line-height:1.7}
[data-theme="dark"] .hero-sub{color:#CBD5E1}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{background:var(--brand);color:#fff;padding:13px 24px;border-radius:10px;border:none;font-family:'Sora',sans-serif;font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:background .2s,transform .15s,box-shadow .2s;box-shadow:0 4px 16px rgba(29,78,216,.25)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(29,78,216,.3)}
.btn-secondary{background:var(--card);color:var(--text);padding:13px 24px;border-radius:10px;border:1.5px solid var(--border);font-family:'Sora',sans-serif;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:border-color .2s,transform .15s,color .2s}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.hero-trust{display:flex;align-items:center;gap:12px;margin-top:24px;flex-wrap:wrap}
.hero-trust span{font-size:12px;color:var(--text-muted);font-weight:500}
[data-theme="dark"] .hero-trust span{color:#CBD5E1}
.avatars{display:flex}
.avatars .av{width:30px;height:30px;border-radius:50%;border:2px solid var(--bg);margin-left:-8px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;color:var(--brand)}
.avatars .av:first-child{margin-left:0}

/* CHAT MOCKUP */
.chat-card{background:#fff;border-radius:20px;border:1px solid #e2e8f0;box-shadow:0 20px 60px rgba(0,0,0,.12);overflow:hidden;max-width:360px;margin-left:auto}
.chat-header{background:#25D366;padding:12px 16px;display:flex;align-items:center;gap:10px}
.chat-avatar{width:34px;height:34px;border-radius:50%;background:#128C7E;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:#fff}
.chat-header-info h4{font-size:13px;font-weight:700;color:#fff;margin:0}
.chat-header-info p{font-size:11px;color:rgba(255,255,255,.8);margin:0}
.chat-body{padding:14px;background:#ECE5DD;display:flex;flex-direction:column;gap:9px}
.msg{max-width:85%;padding:9px 12px;border-radius:12px;font-size:12px;line-height:1.5}
.msg-in{background:#fff;border-radius:4px 12px 12px 12px;align-self:flex-start;color:#111}
.msg-out{background:#DCF8C6;border-radius:12px 4px 12px 12px;align-self:flex-end;color:#111}
.msg-time{font-size:9px;color:#888;text-align:right;margin-top:3px}
.msg-legal{background:#EFF6FF;border-left:3px solid #1D4ED8;border-radius:0 8px 8px 0;padding:9px 12px;font-size:11px;color:#1e3a8a;max-width:92%;align-self:flex-start;line-height:1.6}
.msg-legal strong{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px;color:#1D4ED8}

/* STATS */
.stats-bar{background:var(--brand);padding:36px 5%;display:flex;justify-content:center;gap:0;flex-wrap:wrap}
.stat-item{text-align:center;padding:12px 40px;border-right:1px solid rgba(255,255,255,.2)}
.stat-item:last-child{border-right:none}
.stat-num{font-size:32px;font-weight:800;color:#fff;letter-spacing:-1px}
.stat-num span{color:var(--accent)}
.stat-label{font-size:12px;color:rgba(255,255,255,.7);margin-top:4px;font-weight:500}

/* SECTIONS */
section{padding:72px 5%}
.section-inner{max-width:1200px;margin:0 auto}
.section-tag {
  display: inline-block;
  background: var(--brand-light);
  color: var(--brand);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 5px 13px;
  border-radius: 100px;
  margin-bottom: 14px;
}
[data-theme="dark"] .section-tag {
  background: rgba(99, 149, 255, 0.18);
  color: #93B8FF;
  border: 1px solid rgba(99, 149, 255, 0.25);
}
.section-title{font-size:clamp(26px,4vw,40px);font-weight:800;letter-spacing:-1px;line-height:1.1;margin-bottom:14px}
.section-sub{font-size:16px;color:var(--text-muted);max-width:540px;line-height:1.7}
.text-center{text-align:center}
.section-sub.center{margin:0 auto}

/* PROBLEMA */
.problem{background:var(--bg2)}
.problem-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:40px}
.problem-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:box-shadow .2s,transform .2s}
.problem-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.alert-badge{display:inline-block;background:#FEF2F2;color:#DC2626;font-size:11px;font-weight:700;padding:3px 10px;border-radius:100px;margin-bottom:12px}
.problem-icon{font-size:28px;margin-bottom:14px}
.problem-card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.problem-card p{font-size:13px;color:var(--text-muted);line-height:1.7}

/* COMO FUNCIONA */
.how-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
.steps{display:flex;flex-direction:column;gap:0;margin-top:48px;position:relative}
.steps::before{content:'';position:absolute;left:28px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--brand),transparent)}
.step{display:flex;gap:28px;align-items:flex-start;padding-bottom:40px;position:relative}
.step-num{min-width:56px;height:56px;border-radius:50%;background:var(--brand);color:#fff;font-size:20px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 6px var(--brand-light);position:relative;z-index:2}
.step-body{padding-top:10px}
.step-body h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step-body p{font-size:14px;color:var(--text-muted);max-width:480px;line-height:1.7}
.step-tag{display:inline-block;background:#F0FDF4;color:#166534;font-size:11px;font-weight:700;padding:3px 10px;border-radius:100px;margin-top:8px}
.tech-card{background:var(--bg2);border-radius:20px;padding:28px;border:1px solid var(--border);margin-top:72px}
.tech-card h3{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);margin-bottom:18px}
.tech-items{display:flex;flex-direction:column;gap:12px}
.tech-item{background:var(--card);border-radius:12px;padding:16px;border:1px solid var(--border);display:flex;gap:12px;align-items:flex-start;transition:border-color .2s}
.tech-item:hover{border-color:var(--brand)}
.tech-icon{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:17px;min-width:34px}
.tech-item h4{font-size:13px;font-weight:700;margin-bottom:3px}
.tech-item p{font-size:12px;color:var(--text-muted);line-height:1.6}

/* VALIDACION EXPERTA */
.validation-section{background:var(--bg)}
.validation-card{max-width:560px;margin:40px auto 0;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;display:flex;align-items:center;gap:20px;text-align:left;box-shadow:var(--shadow)}
.validation-avatar{width:72px;height:72px;min-width:72px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800}
.validation-info h3{font-size:17px;font-weight:800;margin-bottom:4px}
.validation-role{font-size:13px;color:var(--text-muted);line-height:1.5}
.validation-badge{display:inline-flex;align-items:center;gap:6px;background:var(--brand-light);color:var(--brand);font-size:11px;font-weight:700;padding:4px 12px;border-radius:100px;margin-top:8px}
[data-theme="dark"] .validation-badge{background:rgba(99,149,255,.18);color:#93B8FF}
@media (max-width:560px){.validation-card{flex-direction:column;text-align:center}}

/* TEMAS */
.topics-section{background:var(--bg2)}
.topics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-top:40px}
.topic-pill{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px;display:flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:var(--text);transition:border-color .2s,background .2s,transform .15s,color .2s;cursor:default}
.topic-pill:hover{border-color:var(--brand);background:var(--brand-light);color:var(--brand);transform:translateY(-2px)}
.topic-icon{font-size:20px}

/* PRICING */
.pricing-section{background:var(--bg)}
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:40px}
.plan-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;display:flex;flex-direction:column;transition:box-shadow .2s; cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;}
.plan-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 48px rgba(0,0,0,.15);
  border-color: var(--brand);
}
[data-theme="dark"] .plan-card:hover {
  box-shadow: 0 20px 48px rgba(0,0,0,.45);
}
.plan-card.featured:hover {
  transform: translateY(-18px) scale(1.02);
}
  .plan-card.featured{border:2px solid var(--brand);box-shadow:0 12px 48px rgba(29,78,216,.15);position:relative}
.featured-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--brand);color:#fff;font-size:11px;font-weight:700;padding:4px 16px;border-radius:100px;letter-spacing:.5px;white-space:nowrap}
.plan-name{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);margin-bottom:8px}
.plan-price{font-size:38px;font-weight:800;letter-spacing:-1px;color:var(--text)}
.plan-price sup{font-size:18px;font-weight:600;vertical-align:super}
.plan-price sub{font-size:14px;font-weight:500;color:var(--text-muted)}
.plan-desc{font-size:13px;color:var(--text-muted);margin:10px 0 20px;line-height:1.6}
.plan-features{list-style:none;display:flex;flex-direction:column;gap:9px;margin-bottom:24px;flex:1}
.plan-features li{font-size:13px;display:flex;align-items:flex-start;gap:8px}
.plan-features li::before{content:'✓';color:var(--success);font-weight:700;min-width:14px;margin-top:1px}
.plan-features li.no::before{content:'✕';color:var(--border2)}
.plan-features li.no{color:var(--text-muted)}

/* CULQI */
.culqi-section{background:var(--bg2)}
.culqi-flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-top:40px}
.culqi-step{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;text-align:center;position:relative}
.culqi-step:not(:last-child)::after{content:'→';position:absolute;right:-14px;top:50%;transform:translateY(-50%);font-size:20px;color:var(--brand);font-weight:700;z-index:1}
.culqi-num{width:40px;height:40px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.culqi-step h3{font-size:14px;font-weight:700;margin-bottom:6px}
.culqi-step p{font-size:12px;color:var(--text-muted);line-height:1.6}
.culqi-badge{display:inline-flex;align-items:center;gap:6px;background:#F0FDF4;border:1px solid #BBF7D0;color:#166534;font-size:11px;font-weight:700;padding:4px 12px;border-radius:100px;margin-top:8px}

/* TESTIMONIALS */
.test-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:40px}
.test-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;display:flex;flex-direction:column;gap:14px}
.stars{color:var(--accent);font-size:15px;letter-spacing:2px}
.test-text{font-size:14px;line-height:1.7;color:var(--text);font-style:italic}
.test-author{display:flex;align-items:center;gap:10px;border-top:1px solid var(--border);padding-top:14px;margin-top:auto}
.author-av{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:#fff;min-width:38px}
.author-info h4{font-size:13px;font-weight:700;margin:0}
.author-info p{font-size:11px;color:var(--text-muted);margin:0}

/* FAQ */
.faq-list{max-width:680px;margin:40px auto 0;display:flex;flex-direction:column;gap:2px}
.faq-item{border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:4px}
.faq-q{width:100%;padding:18px 22px;background:var(--card);border:none;text-align:left;font-family:'Sora',sans-serif;font-size:14px;font-weight:600;cursor:pointer;color:var(--text);display:flex;justify-content:space-between;align-items:center;gap:16px;transition:background .15s}
.faq-q:hover{background:var(--bg2)}
.faq-q .arrow{color:var(--brand);font-size:18px;transition:transform .3s;min-width:18px}
.faq-q.open .arrow{transform:rotate(180deg)}
.faq-a{display:none;padding:0 22px 18px;font-size:13px;color:var(--text-muted);line-height:1.8;background:var(--card)}
.faq-a.open{display:block}

/* CTA FINAL */
.cta-final{background:linear-gradient(135deg,var(--brand-dark) 0%,var(--brand) 100%);padding:72px 5%;text-align:center}
.cta-final h2{font-size:clamp(26px,5vw,44px);font-weight:800;color:#fff;letter-spacing:-1px;margin-bottom:14px}
.cta-final p{font-size:16px;color:rgba(255,255,255,.75);margin-bottom:32px;max-width:480px;margin-left:auto;margin-right:auto}
.btn-white{background:#fff;color:var(--brand);padding:13px 28px;border-radius:10px;border:none;font-family:'Sora',sans-serif;font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:transform .15s,box-shadow .2s;box-shadow:0 4px 20px rgba(0,0,0,.2)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,0,0,.25)}
.cta-note{font-size:12px;color:rgba(255,255,255,.5);margin-top:14px}

/* FOOTER */
footer{background:#0F172A;padding:48px 5% 28px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap;margin-bottom:36px}
.footer-brand{max-width:260px}
.footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:10px}
.footer-logo .dot{color:var(--accent)}
.footer-brand p{font-size:12px;color:rgba(255,255,255,.5);line-height:1.7}
.footer-links h4{color:#fff;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:14px}
.footer-links ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-links ul a{font-size:12px;color:rgba(255,255,255,.5);text-decoration:none;transition:color .2s}
.footer-links ul a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.footer-bottom p{font-size:11px;color:rgba(255,255,255,.4)}
.azure-badge{display:flex;align-items:center;gap:6px;font-size:11px;color:rgba(255,255,255,.4);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:100px;padding:5px 12px}
.azure-dot{width:7px;height:7px;border-radius:50%;background:#0078D4}

/* WA FLOAT */
.wa-float{position:fixed;bottom:24px;right:24px;z-index:999;width:52px;height:52px;border-radius:50%;background:#25D366;box-shadow:0 4px 20px rgba(37,211,102,.4);display:flex;align-items:center;justify-content:center;cursor:pointer;text-decoration:none;transition:transform .2s,box-shadow .2s}
.wa-float:hover{transform:scale(1.1);box-shadow:0 8px 32px rgba(37,211,102,.5)}
.wa-float svg{width:26px;height:26px;fill:#fff}

/* LOADING STATE */
.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--text-muted);font-size:14px;gap:8px}
.spinner{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* RESPONSIVE */
@media(max-width:900px){
  .how-grid{grid-template-columns:1fr}
  .tech-card{margin-top:0}
}
@media(max-width:768px){
  .hero-content{grid-template-columns:1fr}
  .hero-visual{display:flex;justify-content:center;margin-top:32px}
  .hero{min-height:auto;padding:100px 5% 60px}
  .nav-links{display:none}
  .hamburger{display:flex}
  .stat-item{border-right:none;padding:8px 20px}
  .culqi-step:not(:last-child)::after{display:none}
  .footer-top{flex-direction:column;gap:28px}
  .footer-links{min-width:140px}
  .chat-card{margin-left:0;max-width:100%;width:100%}
}
@media(max-width:480px){
  .hero-actions{flex-direction:column}
  .btn-primary,.btn-secondary{justify-content:center;text-align:center}
  nav{padding:0 4%}
  section{padding:56px 4%}
  .topics-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
}

.pricing-dynamic {
  font-size: 20px;
  font-weight: 700;
  color: var(--brand);
  text-align: center;
  margin: 0 auto 8px;
  max-width: 600px;
  position: relative;
  min-height: 32px;
}
.pricing-dynamic .word {
  display: inline-block;
  animation: pop-in .5s cubic-bezier(.175,.885,.32,1.275) both;
}
@keyframes pop-in {
  from { opacity: 0; transform: translateY(8px) scale(.9); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.btn-comprar {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 48px;
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  font-family: 'Sora', sans-serif;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.3px;
  box-shadow: 0 8px 32px rgba(29,78,216,.4);
  transition: transform .2s, box-shadow .2s;
  margin-bottom: 16px;
}
.btn-comprar:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 16px 48px rgba(29,78,216,.5);
}
.btn-comprar:active { transform: scale(.97); }
.btn-comprar-bg {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--brand), var(--brand-dark), var(--brand));
  background-size: 200% 100%;
  animation: shimmer 2.5s linear infinite;
}
@keyframes shimmer {
  0%   { background-position: 0% 0; }
  100% { background-position: 200% 0; }
}
.btn-comprar-text {
  position: relative;
  z-index: 1;
}
.chat-body {
  transition: opacity .4s ease, transform .4s ease;
}

.plan-price-old {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: line-through;
  text-decoration-color: var(--danger);
  margin-right: 8px;
  vertical-align: middle;
}