/* ═══════════════════════════════════════════════════════
   EDUCAGENESIS — MICROCARRERAS FUTURE PROOF
   Main Stylesheet
   ═══════════════════════════════════════════════════════ */

/* ── CSS Variables ── */
:root {
  --primary:      #0047AB;
  --primary-dark: #003285;
  --primary-light:#2563EB;
  --secondary:    #00C2CB;
  --accent:       #06D6A0;
  --gold:         #FFB703;
  --danger:       #EF4444;
  --dark:         #04082A;
  --dark2:        #0D1B4B;
  --gray-900:     #111827;
  --gray-700:     #374151;
  --gray-500:     #6B7280;
  --gray-300:     #D1D5DB;
  --gray-100:     #F3F4F6;
  --white:        #FFFFFF;
  --bg:           #F8FAFF;
  --gradient:     linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  --gradient2:    linear-gradient(135deg, #06D6A0 0%, #0047AB 100%);
  --shadow-sm:    0 1px 3px rgba(0,71,171,0.08), 0 1px 2px rgba(0,71,171,0.06);
  --shadow-md:    0 4px 16px rgba(0,71,171,0.12), 0 2px 6px rgba(0,71,171,0.08);
  --shadow-lg:    0 20px 60px rgba(0,71,171,0.18), 0 8px 24px rgba(0,71,171,0.12);
  --shadow-xl:    0 32px 80px rgba(4,8,42,0.25);
  --radius-sm:    8px;
  --radius-md:    16px;
  --radius-lg:    24px;
  --radius-xl:    32px;
  --transition:   all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-head:    'Syne', sans-serif;
  --font-body:    'Plus Jakarta Sans', sans-serif;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--gray-900);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

/* ── Container ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Section ── */
.section { padding: 96px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--primary);
  background: rgba(0,71,171,0.06); border: 1px solid rgba(0,71,171,0.15);
  padding: 6px 16px; border-radius: 100px; margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-head); font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800; line-height: 1.15; color: var(--dark);
  margin-bottom: 16px;
}
.section-desc { font-size: 1.125rem; color: var(--gray-500); max-width: 600px; margin: 0 auto; }
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600; font-size: 0.9rem;
  padding: 12px 24px; border-radius: var(--radius-sm);
  transition: var(--transition); cursor: pointer; border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient); color: white;
  box-shadow: 0 4px 20px rgba(0,71,171,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,71,171,0.45); }
.btn-ghost { background: rgba(255,255,255,0.12); color: white; border-color: rgba(255,255,255,0.3); backdrop-filter: blur(10px); }
.btn-ghost:hover { background: rgba(255,255,255,0.2); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: white; }
.btn-nav { background: white; color: var(--primary); font-size: 0.85rem; padding: 10px 20px; border-radius: var(--radius-sm); }
.btn-nav:hover { background: var(--primary); color: white; }
.btn-lg { padding: 16px 32px; font-size: 1rem; border-radius: var(--radius-md); }
.btn-full { width: 100%; justify-content: center; padding: 16px; font-size: 1rem; border-radius: var(--radius-md); }
.btn-whatsapp { background: #25D366; color: white; display: inline-flex; align-items: center; gap: 10px; padding: 14px 28px; border-radius: var(--radius-md); font-weight: 600; margin-top: 24px; }
.btn-whatsapp:hover { background: #20B858; transform: translateY(-2px); }

/* ═══════════════════ NAVBAR ═══════════════════ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0; background: transparent;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(4,8,42,0.96);
  backdrop-filter: blur(20px);
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}
.nav-inner {
  display: flex; align-items: center; gap: 32px;
  height: 72px; max-width: 1200px;
}
.logo {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-head); font-size: 1.25rem;
  color: white; letter-spacing: -0.02em;
}
.logo-icon { font-size: 1.4rem; }
.logo strong { color: var(--secondary); }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a {
  color: rgba(255,255,255,0.8); font-size: 0.875rem; font-weight: 500;
  padding: 8px 12px; border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-links a:hover { color: white; background: rgba(255,255,255,0.1); }
.burger { display: none; flex-direction: column; gap: 5px; padding: 8px; margin-left: auto; }
.burger span { display: block; width: 24px; height: 2px; background: white; border-radius: 2px; transition: var(--transition); }

/* ═══════════════════ HERO ═══════════════════ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  background: var(--dark2); overflow: hidden;
  padding: 100px 0 60px;
}
.hero-bg {
  position: absolute; inset: 0;
}
#particleCanvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-mesh {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 20% 20%, rgba(0,194,203,0.2) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 80% 70%, rgba(0,71,171,0.3) 0%, transparent 60%),
    radial-gradient(ellipse 30% 50% at 60% 10%, rgba(6,214,160,0.15) 0%, transparent 60%);
}
.hero-content { position: relative; z-index: 2; max-width: 780px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--secondary);
  background: rgba(0,194,203,0.1); border: 1px solid rgba(0,194,203,0.3);
  padding: 8px 18px; border-radius: 100px; margin-bottom: 24px;
}
.badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.7;transform:scale(1.3)} }
.hero-title {
  font-family: var(--font-head); font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 800; line-height: 1.05; color: white;
  margin-bottom: 24px; letter-spacing: -0.03em;
}
.hero-sub { font-size: 1.2rem; color: rgba(255,255,255,0.7); max-width: 560px; margin-bottom: 40px; line-height: 1.7; }
.hero-sub strong { color: white; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat strong { font-family: var(--font-head); font-size: 1.8rem; color: white; line-height: 1; }
.stat span { font-size: 0.8rem; color: rgba(255,255,255,0.5); margin-top: 4px; }
.stat-div { width: 1px; height: 40px; background: rgba(255,255,255,0.15); }
.hero-scroll { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); text-align: center; color: rgba(255,255,255,0.4); font-size: 0.75rem; }
.scroll-arrow { width: 24px; height: 24px; border-right: 2px solid; border-bottom: 2px solid; border-color: rgba(255,255,255,0.3); transform: rotate(45deg); margin: 8px auto 0; animation: bounce 2s infinite; }
@keyframes bounce { 0%,100%{transform:rotate(45deg) translateY(0)} 50%{transform:rotate(45deg) translateY(6px)} }

/* ── Animations ── */
.animate-in { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-in.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }
.delay-4 { transition-delay: 0.6s; }

/* ═══════════════════ PARTNERS ═══════════════════ */
.partners-strip { background: white; border-top: 1px solid var(--gray-100); border-bottom: 1px solid var(--gray-100); padding: 28px 0; overflow: hidden; }
.partners-inner { display: flex; align-items: center; justify-content: center; gap: 48px; flex-wrap: wrap; padding: 0 24px; }
.partner-item img { height: 28px; width: auto; filter: grayscale(100%) opacity(0.45); transition: var(--transition); }
.partner-item:hover img { filter: grayscale(0%) opacity(1); }

/* ═══════════════════ INTRO ═══════════════════ */
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.intro-text .section-label { margin-bottom: 16px; }
.intro-text h2 { margin-bottom: 20px; }
.intro-text p { color: var(--gray-500); margin-bottom: 16px; line-height: 1.8; }
.intro-pillars { display: flex; flex-direction: column; gap: 16px; margin-top: 32px; }
.pillar { display: flex; align-items: center; gap: 16px; padding: 16px; background: var(--gray-100); border-radius: var(--radius-md); }
.pillar-icon { font-size: 1.5rem; }
.pillar strong { display: block; font-weight: 700; color: var(--dark); }
.pillar div { font-size: 0.875rem; color: var(--gray-500); }

.visual-card { background: var(--dark2); border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-xl); }
.vc-header { display: flex; gap: 6px; padding: 14px 18px; background: rgba(255,255,255,0.05); }
.vc-dot { width: 12px; height: 12px; border-radius: 50%; }
.vc-dot.red { background: #FF5F56; }
.vc-dot.yellow { background: #FFBD2E; }
.vc-dot.green { background: #27C93F; }
.vc-body { padding: 32px; }
.cert-showcase { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; min-height: 200px; }
.cert-item { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); padding: 16px; display: flex; flex-direction: column; align-items: center; gap: 8px; transition: var(--transition); }
.cert-item:hover { background: rgba(0,194,203,0.15); border-color: rgba(0,194,203,0.4); }
.cert-badge { font-size: 2rem; }
.cert-item span { font-size: 0.75rem; color: rgba(255,255,255,0.6); text-align: center; font-weight: 600; }
.cert-badge-center {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  background: var(--gradient); border-radius: var(--radius-md); padding: 14px 18px;
  text-align: center; box-shadow: var(--shadow-lg);
}
.cert-badge-center span { font-size: 0.6rem; font-weight: 700; letter-spacing: 2px; color: rgba(255,255,255,0.8); display: block; }
.cert-badge-center strong { font-family: var(--font-head); font-size: 1.1rem; color: white; line-height: 1.1; }

/* ═══════════════════ MICROCARRERAS ═══════════════════ */
.mc-section { background: var(--dark); }
.mc-section .section-label { color: var(--secondary); background: rgba(0,194,203,0.1); border-color: rgba(0,194,203,0.2); }
.mc-section .section-title { color: white; }
.mc-section .section-desc { color: rgba(255,255,255,0.5); }
.mc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 48px; }
.mc-card {
  position: relative; background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg); padding: 32px;
  transition: var(--transition); overflow: hidden;
}
.mc-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient); opacity: 0; transition: var(--transition);
}
.mc-card:hover { background: rgba(255,255,255,0.08); border-color: rgba(0,194,203,0.3); transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.mc-card:hover::before { opacity: 1; }
.mc-card-featured { border-color: rgba(6,214,160,0.3); background: rgba(6,214,160,0.04); }
.mc-card-featured::before { opacity: 1; background: var(--gradient2); }
.mc-icon { font-size: 2.5rem; margin-bottom: 8px; }
.mc-number { font-family: var(--font-head); font-size: 0.7rem; font-weight: 700; letter-spacing: 3px; color: rgba(255,255,255,0.2); margin-bottom: 12px; }
.mc-card h3 { font-family: var(--font-head); font-size: 1.25rem; color: white; margin-bottom: 12px; }
.mc-card p { font-size: 0.875rem; color: rgba(255,255,255,0.55); line-height: 1.7; margin-bottom: 20px; }
.mc-certs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.cert-tag { font-size: 0.7rem; font-weight: 600; color: var(--secondary); background: rgba(0,194,203,0.1); border: 1px solid rgba(0,194,203,0.2); padding: 4px 10px; border-radius: 100px; }
.mc-footer { display: flex; justify-content: space-between; align-items: center; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.08); }
.mc-level { font-size: 0.75rem; color: rgba(255,255,255,0.4); }
.mc-link { font-size: 0.875rem; font-weight: 600; color: var(--secondary); transition: var(--transition); }
.mc-link:hover { color: var(--accent); }
.mc-cta-row { text-align: center; }
.mc-cta-row p { color: rgba(255,255,255,0.5); margin-bottom: 16px; }

/* ═══════════════════ CERTIFICATIONS ═══════════════════ */
.cert-brands { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cert-brand { background: white; border: 1px solid var(--gray-100); border-radius: var(--radius-lg); padding: 32px; text-align: center; transition: var(--transition); }
.cert-brand:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.cb-logo { height: 40px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.cb-logo img { height: 32px; width: auto; }
.cert-brand h4 { font-family: var(--font-head); font-size: 1.1rem; color: var(--dark); margin-bottom: 8px; }
.cert-brand p { font-size: 0.8rem; color: var(--gray-500); line-height: 1.6; margin-bottom: 16px; }
.cb-tags { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
.cb-tags span { font-size: 0.65rem; font-weight: 600; color: var(--primary); background: rgba(0,71,171,0.06); border: 1px solid rgba(0,71,171,0.12); padding: 3px 8px; border-radius: 100px; }

/* ═══════════════════ WHY ═══════════════════ */
.why-section { background: var(--bg); }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.why-items { display: flex; flex-direction: column; gap: 24px; margin-top: 32px; }
.why-item { display: flex; gap: 16px; align-items: flex-start; }
.wi-icon { font-size: 1.5rem; min-width: 40px; height: 40px; background: rgba(0,71,171,0.08); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; }
.wi-content h4 { font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.wi-content p { font-size: 0.875rem; color: var(--gray-500); }
.why-visual { position: relative; }
.why-card-stack { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.wc {
  background: white; border-radius: var(--radius-lg); padding: 24px;
  display: flex; align-items: center; gap: 16px;
  box-shadow: var(--shadow-md); transition: var(--transition);
}
.wc:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.wc-emoji { font-size: 2rem; }
.wc strong { display: block; font-family: var(--font-head); font-size: 1.5rem; color: var(--dark); }
.wc small { font-size: 0.75rem; color: var(--gray-500); }
.wc-1 { border-top: 3px solid var(--primary); }
.wc-2 { border-top: 3px solid var(--secondary); }
.wc-3 { border-top: 3px solid var(--accent); }
.wc-4 { border-top: 3px solid var(--gold); }

/* ═══════════════════ FORM ═══════════════════ */
.form-section { background: var(--dark2); }
.form-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.form-info .section-label { color: var(--secondary); background: rgba(0,194,203,0.1); border-color: rgba(0,194,203,0.2); }
.form-info .section-title { color: white; }
.form-info p { color: rgba(255,255,255,0.6); margin-bottom: 24px; }
.form-benefits { display: flex; flex-direction: column; gap: 10px; margin-bottom: 32px; }
.fb-item { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.form-contact-quick { display: flex; flex-direction: column; gap: 12px; }
.fq-item { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); }
.fq-item:hover { color: var(--secondary); }
.fq-wa { color: #25D366 !important; font-weight: 600; }
.form-box { background: white; border-radius: var(--radius-xl); padding: 40px; box-shadow: var(--shadow-xl); }
.reg-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.875rem; font-weight: 600; color: var(--gray-700); }
.form-group input, .form-group select, .form-group textarea {
  padding: 12px 16px; border: 2px solid var(--gray-200, #E5E7EB);
  border-radius: var(--radius-sm); font-size: 0.9rem;
  transition: var(--transition); background: var(--gray-100);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary); background: white;
  box-shadow: 0 0 0 3px rgba(0,71,171,0.1);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.field-error { font-size: 0.75rem; color: var(--danger); }
.form-check { display: flex; gap: 10px; align-items: flex-start; }
.form-check input { min-width: 16px; margin-top: 2px; accent-color: var(--primary); }
.form-check label { font-size: 0.8rem; color: var(--gray-500); }
.link-inline { color: var(--primary); text-decoration: underline; }
.form-message { padding: 14px 18px; border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 500; text-align: center; }
.form-message.success { background: rgba(6,214,160,0.12); color: #065F46; border: 1px solid rgba(6,214,160,0.3); }
.form-message.error { background: rgba(239,68,68,0.1); color: #991B1B; border: 1px solid rgba(239,68,68,0.2); }

/* ═══════════════════ CONTACT ═══════════════════ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.ci-items { display: flex; flex-direction: column; gap: 20px; margin: 32px 0; }
.ci-item { display: flex; gap: 16px; align-items: flex-start; }
.ci-icon { font-size: 1.3rem; min-width: 44px; height: 44px; background: var(--gray-100); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; }
.ci-item strong { display: block; font-weight: 700; color: var(--dark); margin-bottom: 4px; font-size: 0.875rem; }
.ci-item a, .ci-item span { font-size: 0.9rem; color: var(--primary); }

/* ═══════════════════ FOOTER ═══════════════════ */
.footer { background: var(--dark); border-top: 1px solid rgba(255,255,255,0.06); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .logo { color: white; margin-bottom: 16px; }
.footer-brand p { font-size: 0.875rem; color: rgba(255,255,255,0.4); line-height: 1.7; max-width: 280px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5); font-size: 0.75rem; transition: var(--transition); }
.footer-social a:hover { background: var(--primary); color: white; }
.footer-col h5 { color: white; font-weight: 700; margin-bottom: 16px; font-size: 0.875rem; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col li a { font-size: 0.8rem; color: rgba(255,255,255,0.4); transition: var(--transition); }
.footer-col li a:hover { color: var(--secondary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; text-align: center; }
.footer-bottom p { font-size: 0.75rem; color: rgba(255,255,255,0.3); }

/* ═══════════════════ AI WIDGET ═══════════════════ */
.ai-widget { position: fixed; bottom: 28px; right: 28px; z-index: 9999; }
.ai-trigger {
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--gradient); color: white;
  box-shadow: 0 8px 32px rgba(0,71,171,0.4);
  font-size: 1.5rem; display: flex; align-items: center; justify-content: center;
  transition: var(--transition); position: relative;
}
.ai-trigger:hover { transform: scale(1.1); box-shadow: 0 12px 40px rgba(0,71,171,0.5); }
.ai-trigger-badge {
  position: absolute; top: -4px; right: -4px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--danger); color: white; font-size: 0.65rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  animation: pulse 2s infinite;
}
.ai-chat-box {
  position: absolute; bottom: 76px; right: 0;
  width: 360px; background: white; border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl); display: none; flex-direction: column;
  overflow: hidden; border: 1px solid var(--gray-100);
  animation: slideUp 0.3s ease;
}
.ai-chat-box.open { display: flex; }
@keyframes slideUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
.ai-header { background: var(--gradient); color: white; padding: 16px 18px; display: flex; align-items: center; gap: 12px; }
.ai-avatar { width: 38px; height: 38px; background: rgba(255,255,255,0.2); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; }
.ai-header-info strong { display: block; font-size: 0.9rem; }
.ai-header-info small { font-size: 0.7rem; opacity: 0.8; }
.ai-close { margin-left: auto; background: rgba(255,255,255,0.15); border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; color: white; font-size: 0.8rem; cursor: pointer; border: none; transition: var(--transition); }
.ai-close:hover { background: rgba(255,255,255,0.3); }
.ai-messages { flex: 1; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 12px; max-height: 360px; }
.ai-msg { display: flex; }
.ai-msg-bot { justify-content: flex-start; }
.ai-msg-user { justify-content: flex-end; }
.ai-bubble { max-width: 85%; padding: 12px 16px; border-radius: var(--radius-md); font-size: 0.875rem; line-height: 1.6; }
.ai-msg-bot .ai-bubble { background: var(--gray-100); color: var(--gray-900); border-radius: 4px var(--radius-md) var(--radius-md) var(--radius-md); }
.ai-msg-user .ai-bubble { background: var(--gradient); color: white; border-radius: var(--radius-md) 4px var(--radius-md) var(--radius-md); }
.ai-quick-btns { display: flex; flex-wrap: wrap; gap: 6px; }
.ai-quick { font-size: 0.75rem; color: var(--primary); background: rgba(0,71,171,0.06); border: 1px solid rgba(0,71,171,0.2); padding: 6px 12px; border-radius: 100px; cursor: pointer; transition: var(--transition); font-family: var(--font-body); }
.ai-quick:hover { background: var(--primary); color: white; border-color: var(--primary); }
.ai-typing { display: flex; gap: 4px; align-items: center; padding: 8px 12px; }
.ai-typing span { width: 6px; height: 6px; background: var(--gray-400, #9CA3AF); border-radius: 50%; animation: typing 1.4s infinite ease-in-out; }
.ai-typing span:nth-child(2){animation-delay:.2s}
.ai-typing span:nth-child(3){animation-delay:.4s}
@keyframes typing { 0%,80%,100%{transform:scale(1);opacity:.4} 40%{transform:scale(1.2);opacity:1} }
.ai-input-row { display: flex; gap: 8px; padding: 12px 14px; border-top: 1px solid var(--gray-100); }
.ai-input-row input { flex: 1; padding: 10px 14px; border: 1.5px solid var(--gray-200, #E5E7EB); border-radius: 100px; font-size: 0.875rem; transition: var(--transition); }
.ai-input-row input:focus { outline: none; border-color: var(--primary); }
#aiSend { width: 38px; height: 38px; border-radius: 50%; background: var(--gradient); color: white; display: flex; align-items: center; justify-content: center; border: none; cursor: pointer; transition: var(--transition); }
#aiSend:hover { transform: scale(1.1); }

/* ═══════════════════ RESPONSIVE ═══════════════════ */
@media (max-width: 1024px) {
  .mc-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-brands { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-links, .btn-nav { display: none; }
  .burger { display: flex; }
  .nav-links.open { display: flex; flex-direction: column; position: fixed; top: 72px; left: 0; right: 0; background: var(--dark); padding: 20px 24px; gap: 4px; border-top: 1px solid rgba(255,255,255,0.1); }
  .hero-title { font-size: 2.8rem; }
  .hero-ctas { flex-direction: column; }
  .hero-stats { gap: 20px; }
  .stat-div { display: none; }
  .intro-grid, .why-grid, .form-wrapper, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .mc-grid { grid-template-columns: 1fr; }
  .cert-brands { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .ai-chat-box { width: 320px; right: -8px; }
  .section-title { font-size: 1.75rem; }
  .why-card-stack { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 2.2rem; }
  .form-box { padding: 24px 20px; }
}