/* ============================================
   PotiguarSoft — Design System
   ============================================ */
:root {
  --bg-deep: #030712;
  --bg-card: rgba(15, 23, 42, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.12);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #22d3ee;
  --accent-blue: #3b82f6;
  --accent-violet: #8b5cf6;
  --accent-magenta: #d946ef;
  --gradient-hero: linear-gradient(135deg, #22d3ee 0%, #3b82f6 45%, #8b5cf6 100%);
  --gradient-glow: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(34, 211, 238, 0.25), transparent);
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-glow: 0 0 60px rgba(34, 211, 238, 0.15);
  --nav-height: 80px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  width: min(1200px, 92vw);
  margin-inline: auto;
}

/* Background effects */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black, transparent);
  pointer-events: none;
  z-index: 0;
}

.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  animation: orbFloat 20s ease-in-out infinite;
}

.bg-orb--1 {
  width: 500px;
  height: 500px;
  background: rgba(34, 211, 238, 0.12);
  top: -10%;
  right: -5%;
}

.bg-orb--2 {
  width: 400px;
  height: 400px;
  background: rgba(139, 92, 246, 0.1);
  bottom: 20%;
  left: -10%;
  animation-delay: -7s;
}

.bg-orb--3 {
  width: 300px;
  height: 300px;
  background: rgba(59, 130, 246, 0.08);
  top: 50%;
  left: 40%;
  animation-delay: -14s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Typography */
.gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.section-label::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--gradient-hero);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
}

/* Glass card */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.glass:hover {
  border-color: var(--glass-highlight);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-hero);
  color: #030712;
  box-shadow: 0 4px 24px rgba(34, 211, 238, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(34, 211, 238, 0.45);
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-highlight);
  backdrop-filter: blur(10px);
}

.btn--outline:hover {
  border-color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.08);
}

.btn--whatsapp {
  background: #25d366;
  color: #fff;
}

.btn--whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
}

.logo__icon {
  width: 42px;
  height: 42px;
  background: var(--gradient-hero);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #030712;
}

.logo__accent {
  color: var(--accent-cyan);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav__cta {
  margin-left: 12px;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  z-index: 1;
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease forwards;
}

.hero__badge i {
  font-size: 0.7rem;
  animation: pulse 2s infinite;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s forwards;
  opacity: 0;
}

.hero__subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 36px;
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero__actions {
  animation: fadeInUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

.hero__stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  animation: fadeInUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.hero__stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__stat span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero__visual {
  position: relative;
  animation: fadeInUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

.hero__card {
  position: relative;
  padding: 40px;
  background: var(--bg-card);
  backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.hero__card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  pointer-events: none;
}

.hero__code {
  font-family: "Consolas", "Monaco", monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.hero__code .kw { color: var(--accent-violet); }
.hero__code .fn { color: var(--accent-cyan); }
.hero__code .str { color: #34d399; }
.hero__code .cm { color: var(--text-muted); }

.hero__floating {
  position: absolute;
  padding: 12px 20px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: float 6s ease-in-out infinite;
}

.hero__floating--1 {
  top: 10%;
  right: -5%;
  color: var(--accent-cyan);
}

.hero__floating--2 {
  bottom: 15%;
  left: -8%;
  color: var(--accent-violet);
  animation-delay: -3s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Sections */
.section {
  position: relative;
  padding: 100px 0;
  z-index: 1;
}

.section--alt {
  background: linear-gradient(180deg, transparent, rgba(15, 23, 42, 0.4), transparent);
}

.section__header {
  text-align: center;
  margin-bottom: 64px;
}

.section__header .section-desc {
  margin-inline: auto;
}

/* Feature cards (home preview) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px;
  text-align: center;
}

.feature-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(139, 92, 246, 0.15));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-cyan);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-card {
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
}

.service-card__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  opacity: 0.06;
  position: absolute;
  top: 16px;
  right: 20px;
}

.service-card__icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-hero);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #030712;
  margin-bottom: 20px;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* MVV cards */
.mvv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.mvv-card {
  padding: 40px 32px;
  text-align: center;
}

.mvv-card__icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(139, 92, 246, 0.2));
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--accent-cyan);
}

.mvv-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 14px;
}

.mvv-card p {
  color: var(--text-secondary);
}

/* Differentials */
.diff-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.diff-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  align-items: flex-start;
}

.diff-item__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(34, 211, 238, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.diff-item h4 {
  font-family: var(--font-display);
  margin-bottom: 6px;
}

.diff-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Portfolio */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.portfolio-card {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.portfolio-card__image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.portfolio-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.portfolio-card:hover .portfolio-card__image img {
  transform: scale(1.08);
}

.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(3, 7, 18, 0.9), transparent 60%);
}

.portfolio-card__tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: rgba(34, 211, 238, 0.2);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.portfolio-card__body {
  padding: 28px;
}

.portfolio-card__body h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.portfolio-card__body p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.portfolio-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.portfolio-card__tech span {
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  align-items: flex-start;
}

.contact-item__icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(139, 92, 246, 0.15));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent-cyan);
}

.contact-item h4 {
  font-family: var(--font-display);
  margin-bottom: 6px;
}

.contact-item p,
.contact-item a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color var(--transition);
}

.contact-item a:hover {
  color: var(--accent-cyan);
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.social-links a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-links a:hover {
  background: rgba(34, 211, 238, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-3px);
}

/* Form */
.contact-form {
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Page header (inner pages) */
.page-hero {
  position: relative;
  padding: calc(var(--nav-height) + 80px) 0 80px;
  text-align: center;
  z-index: 1;
}

.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: var(--gradient-hero);
}

.page-hero .section-desc {
  margin-inline: auto;
}

/* CTA banner */
.cta-banner {
  padding: 64px;
  text-align: center;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.08), rgba(139, 92, 246, 0.08));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  margin-top: 48px;
}

.cta-banner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 12px;
}

.cta-banner p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* Footer */
.footer {
  position: relative;
  padding: 64px 0 32px;
  border-top: 1px solid var(--glass-border);
  z-index: 1;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 16px;
  max-width: 320px;
}

.footer h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.footer__links li {
  margin-bottom: 12px;
}

.footer__links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--accent-cyan);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* About page layout */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-intro__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.1), rgba(139, 92, 246, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-intro__image i {
  font-size: 6rem;
  opacity: 0.3;
  color: var(--accent-cyan);
}

/* Map placeholder */
.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  height: 320px;
  margin-top: 48px;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
  filter: grayscale(0.8) invert(0.92) contrast(1.1);
}

/* Chatbot — Assistente Poti */
.chatbot {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
  font-family: var(--font-body);
}

.chatbot__toggle {
  position: relative;
  width: 64px;
  height: 64px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: var(--gradient-hero);
  color: #030712;
  font-size: 1.6rem;
  box-shadow: 0 8px 32px rgba(34, 211, 238, 0.4);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.chatbot__toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 40px rgba(34, 211, 238, 0.5);
}

.chatbot__toggle-icon--close {
  display: none;
  font-size: 1.4rem;
}

.chatbot--open .chatbot__toggle-icon--robot {
  display: none;
}

.chatbot--open .chatbot__toggle-icon--close {
  display: block;
}

.chatbot__pulse {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(34, 211, 238, 0.5);
  animation: chatPulse 2s ease-out infinite;
  pointer-events: none;
}

.chatbot--open .chatbot__pulse,
.chatbot--hint .chatbot__pulse {
  animation: none;
  opacity: 0;
}

.chatbot--hint .chatbot__toggle {
  animation: chatBounce 1s ease 3;
}

@keyframes chatPulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.35); opacity: 0; }
}

@keyframes chatBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.chatbot__panel {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: min(380px, calc(100vw - 40px));
  height: 520px;
  max-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  background: rgba(10, 15, 30, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5), var(--shadow-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.96);
  transition: var(--transition);
  overflow: hidden;
}

.chatbot--open .chatbot__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.chatbot__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.12), rgba(139, 92, 246, 0.12));
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.chatbot__avatar {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #030712;
  flex-shrink: 0;
}

.chatbot__header-info {
  flex: 1;
  min-width: 0;
}

.chatbot__header-info strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
}

.chatbot__header-info span {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.chatbot__header-info span i {
  font-size: 0.45rem;
  color: #34d399;
}

.chatbot__close {
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.chatbot__close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.chatbot__messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chatbot__msg {
  max-width: 88%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.9rem;
  line-height: 1.5;
  animation: fadeInUp 0.35s ease;
}

.chatbot__msg--bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  border-bottom-left-radius: 4px;
  color: var(--text-primary);
}

.chatbot__msg--user {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.25), rgba(59, 130, 246, 0.25));
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-bottom-right-radius: 4px;
}

.chatbot__typing {
  display: flex;
  gap: 5px;
  padding: 14px 18px;
}

.chatbot__typing span {
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  animation: typingDot 1.2s infinite;
}

.chatbot__typing span:nth-child(2) { animation-delay: 0.15s; }
.chatbot__typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes typingDot {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

.chatbot__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 16px 12px;
  flex-shrink: 0;
}

.chatbot__chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition);
}

.chatbot__chip:hover {
  background: rgba(34, 211, 238, 0.15);
  transform: translateY(-1px);
}

.chatbot__chip[data-action="humano"] {
  color: #25d366;
  background: rgba(37, 211, 102, 0.1);
  border-color: rgba(37, 211, 102, 0.3);
}

.chatbot__form {
  display: flex;
  gap: 8px;
  padding: 12px 16px 16px;
  border-top: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.chatbot__form input {
  flex: 1;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.chatbot__form input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.chatbot__form button {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--gradient-hero);
  color: #030712;
  cursor: pointer;
  transition: var(--transition);
}

.chatbot__form button:hover {
  transform: scale(1.05);
}

/* Toast notification */
.toast {
  position: fixed;
  bottom: 110px;
  right: 28px;
  padding: 16px 24px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  z-index: 1001;
  transform: translateX(120%);
  transition: transform 0.4s ease;
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-color: rgba(52, 211, 153, 0.4);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero__content,
  .about-intro,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    order: -1;
  }

  .features-grid,
  .mvv-grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 70px;
  }

  .nav__menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: flex-start;
    padding: 32px 24px;
    background: rgba(3, 7, 18, 0.98);
    backdrop-filter: blur(20px);
    transform: translateX(100%);
    transition: transform var(--transition);
    gap: 4px;
  }

  .nav__menu.open {
    transform: translateX(0);
  }

  .nav__link {
    width: 100%;
    padding: 16px 20px;
    font-size: 1.1rem;
  }

  .nav__cta {
    margin: 16px 0 0;
    width: 100%;
  }

  .nav__cta .btn {
    width: 100%;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }

  .nav__toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .diff-list,
  .form-row {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .section {
    padding: 72px 0;
  }

  .cta-banner {
    padding: 40px 24px;
  }

  .hero__floating {
    display: none;
  }

  .chatbot {
    bottom: 20px;
    right: 20px;
  }

  .chatbot__panel {
    width: calc(100vw - 40px);
    height: min(520px, calc(100vh - 100px));
    bottom: 76px;
  }
}