/* ═══════════════════════════════════
   AjuTDAH — Landing Page Styles
   ═══════════════════════════════════ */

:root {
  --cor-primaria: #0D1B3E;
  --cor-secundaria: #25D366;
  --cor-verde-claro: #EAFAF1;
  --cor-verde-medio: #1DA851;
  --cor-texto: #1A1A2E;
  --cor-texto-suave: #6B7280;
  --cor-fundo: #FFFFFF;
  --cor-card: #F8FFFE;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(13, 27, 62, 0.06);
  --shadow-md: 0 4px 20px rgba(37, 211, 102, 0.08);
  --shadow-lg: 0 8px 32px rgba(13, 27, 62, 0.10);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  color: var(--cor-texto);
  background: var(--cor-fundo);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  line-height: 1.2;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow { max-width: 800px; }

/* ── Fade-in animation ── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--transition), transform 0.6s var(--transition);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════ HEADER ═══════════ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(13, 27, 62, 0.06);
  transition: box-shadow var(--transition);
}
.header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.logo {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0;
}
.logo-aju { color: var(--cor-primaria); }
.logo-tdah { color: var(--cor-secundaria); }

.nav {
  display: flex;
  gap: 32px;
  align-items: center;
}
.nav-link {
  font-size: 0.938rem;
  font-weight: 500;
  color: var(--cor-texto-suave);
  transition: color var(--transition);
}
.nav-link:hover { color: var(--cor-primaria); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--cor-primaria);
  padding: 8px;
}
.menu-icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .menu-icon-open { display: none; }
.menu-toggle[aria-expanded="true"] .menu-icon-close { display: block; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  text-align: center;
}
.btn:focus-visible {
  outline: 3px solid var(--cor-secundaria);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--cor-secundaria);
  color: #fff;
  padding: 14px 32px;
}
.btn-primary:hover { background: var(--cor-verde-medio); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--cor-primaria);
  border: 2px solid var(--cor-primaria);
  padding: 14px 32px;
}
.btn-outline:hover { background: var(--cor-primaria); color: #fff; }

.btn-white {
  background: #fff;
  color: var(--cor-verde-medio);
  padding: 14px 32px;
  font-weight: 700;
}
.btn-white:hover { background: #f0fdf4; transform: translateY(-2px); }

.btn-sm { padding: 10px 20px; font-size: 0.875rem; }
.btn-lg { padding: 18px 40px; font-size: 1.125rem; }
.btn-block { width: 100%; }

/* Pulse animation */
.pulse {
  animation: pulse-glow 2.5s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(37, 211, 102, 0); }
}

/* ── Badge ── */
.badge {
  display: inline-block;
  font-family: 'Space Mono', monospace;
  font-size: 0.813rem;
  font-weight: 700;
  background: var(--cor-verde-claro);
  color: var(--cor-verde-medio);
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}

/* ═══════════ HERO ═══════════ */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(180deg, var(--cor-fundo) 0%, var(--cor-verde-claro) 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  color: var(--cor-primaria);
  margin-bottom: 20px;
}
.highlight { color: var(--cor-secundaria); }
.highlight-green { color: var(--cor-secundaria); font-weight: 700; }

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--cor-texto-suave);
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}
.hero-secondary-link {
  font-weight: 600;
  color: var(--cor-secundaria);
  transition: color var(--transition);
}
.hero-secondary-link:hover { color: var(--cor-verde-medio); }

/* ── WhatsApp Mockup ── */
.phone-mockup {
  background: #fff;
  border-radius: 32px;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 0 8px #e5e7eb;
  max-width: 360px;
  margin: 0 auto;
}
.phone-notch {
  height: 28px;
  background: #f9fafb;
  border-radius: 0 0 16px 16px;
  width: 50%;
  margin: 0 auto;
}
.whatsapp-header {
  background: #075E54;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.wa-avatar {
  width: 40px;
  height: 40px;
  background: var(--cor-verde-claro);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}
.wa-info { display: flex; flex-direction: column; }
.wa-name { color: #fff; font-weight: 600; font-size: 0.938rem; }
.wa-status { color: #b0d9c1; font-size: 0.75rem; }

.whatsapp-chat {
  background: #ECE5DD;
  padding: 16px;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.wa-message {
  max-width: 85%;
  padding: 10px 14px 6px;
  border-radius: 12px;
  font-size: 0.875rem;
  line-height: 1.45;
  position: relative;
  opacity: 0;
  transform: translateY(12px);
}
.wa-message.show {
  opacity: 1;
  transform: translateY(0);
  transition: all 0.5s ease;
}
.wa-incoming {
  background: #fff;
  border-top-left-radius: 4px;
  align-self: flex-start;
}
.wa-text { display: block; }
.wa-time {
  display: block;
  text-align: right;
  font-size: 0.688rem;
  color: #999;
  margin-top: 4px;
}

.wa-typing {
  align-self: flex-start;
  background: #fff;
  border-radius: 12px;
  border-top-left-radius: 4px;
  padding: 12px 18px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.3s;
}
.wa-typing.show { opacity: 1; }
.typing-dot {
  width: 8px;
  height: 8px;
  background: #999;
  border-radius: 50%;
  animation: typing-bounce 1.4s infinite ease-in-out;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-6px); }
}

/* ═══════════ SECTIONS ═══════════ */
.section {
  padding: 96px 0;
}
.section-alt {
  background: var(--cor-verde-claro);
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--cor-primaria);
  text-align: center;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.063rem;
  color: var(--cor-texto-suave);
  text-align: center;
  max-width: 560px;
  margin: 0 auto 48px;
}

/* ═══════════ PROBLEMA ═══════════ */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 48px 0;
}
.problem-card {
  background: var(--cor-fundo);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid rgba(37, 211, 102, 0.12);
  transition: transform var(--transition), box-shadow var(--transition);
}
.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.problem-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 16px;
}
.problem-card p {
  font-size: 0.938rem;
  color: var(--cor-texto-suave);
  line-height: 1.5;
}
.problem-closing {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--cor-primaria);
  margin-top: 40px;
  line-height: 1.6;
}

/* ═══════════ COMO FUNCIONA ═══════════ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.step-card {
  text-align: center;
  position: relative;
  padding: 40px 24px;
}
.step-number {
  font-family: 'Space Mono', monospace;
  font-size: 4rem;
  font-weight: 700;
  color: var(--cor-verde-claro);
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 0;
  line-height: 1;
}
.step-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.step-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--cor-primaria);
  margin-bottom: 12px;
}
.step-card p {
  font-size: 0.938rem;
  color: var(--cor-texto-suave);
}

/* ═══════════ RECURSOS ═══════════ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.feature-card {
  background: var(--cor-fundo);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  border: 1px solid rgba(37, 211, 102, 0.1);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.feature-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 1.063rem;
  font-weight: 700;
  color: var(--cor-primaria);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 0.875rem;
  color: var(--cor-texto-suave);
  line-height: 1.55;
}

/* ═══════════ SOCIAL PROOF ═══════════ */
.counter {
  text-align: center;
  margin: 32px 0 48px;
}
.counter-number {
  font-family: 'Space Mono', monospace;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--cor-secundaria);
  display: block;
}
.counter-number::before { content: "Mais de "; font-size: 0.5em; color: var(--cor-texto-suave); font-family: 'DM Sans', sans-serif; font-weight: 500; }
.counter-label {
  font-size: 1rem;
  color: var(--cor-texto-suave);
  display: block;
  margin-top: 4px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--cor-card);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid rgba(13, 27, 62, 0.06);
  transition: transform var(--transition);
}
.testimonial-card:hover { transform: translateY(-4px); }
.testimonial-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  background: var(--cor-verde-claro);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}
.testimonial-header strong {
  font-size: 0.938rem;
  color: var(--cor-primaria);
}
.testimonial-city {
  display: block;
  font-size: 0.813rem;
  color: var(--cor-texto-suave);
}
.testimonial-bubble {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 16px;
  position: relative;
  border: 1px solid rgba(37, 211, 102, 0.1);
}
.testimonial-bubble p {
  font-size: 0.875rem;
  color: var(--cor-texto);
  line-height: 1.55;
  font-style: italic;
}

/* ═══════════ PLANOS ═══════════ */
.billing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}
.toggle-label {
  font-size: 0.938rem;
  font-weight: 500;
  color: var(--cor-texto-suave);
}
.toggle-discount {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  background: var(--cor-secundaria);
  color: #fff;
  padding: 2px 8px;
  border-radius: 100px;
  margin-left: 4px;
}
.toggle-switch {
  width: 52px;
  height: 28px;
  background: #e5e7eb;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  position: relative;
  transition: background var(--transition);
}
.toggle-switch[aria-checked="true"] { background: var(--cor-secundaria); }
.toggle-knob {
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: transform var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.toggle-switch[aria-checked="true"] .toggle-knob { transform: translateX(24px); }

.plans-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 800px;
  margin: 0 auto;
}
.plan-card {
  background: var(--cor-fundo);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 2px solid rgba(13, 27, 62, 0.08);
  position: relative;
  display: flex;
  flex-direction: column;
}
.plan-card-pro {
  background: linear-gradient(135deg, var(--cor-primaria), #142a5e);
  border-color: transparent;
  box-shadow: 0 8px 40px rgba(13, 27, 62, 0.25);
}
.plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--cor-secundaria);
  color: #fff;
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 100px;
  white-space: nowrap;
}
.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cor-primaria);
  margin-bottom: 8px;
}
.plan-name-pro { color: #fff; }
.plan-price {
  margin-bottom: 28px;
}
.price-amount {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--cor-primaria);
}
.plan-price-pro .price-amount { color: #fff; }
.price-period {
  font-size: 1rem;
  color: var(--cor-texto-suave);
}
.plan-price-pro .price-period { color: rgba(255,255,255,0.6); }

.plan-features {
  flex: 1;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
}
.feature-yes { color: var(--cor-texto); }
.feature-yes svg { color: var(--cor-secundaria); width: 18px; height: 18px; flex-shrink: 0; }
.feature-no { color: var(--cor-texto-suave); }
.feature-no svg { color: #d1d5db; width: 18px; height: 18px; flex-shrink: 0; }
.plan-features-pro li { color: rgba(255,255,255,0.9); }
.plan-features-pro .feature-yes svg { color: var(--cor-secundaria); }

/* ═══════════ FAQ ═══════════ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 48px;
}
.faq-item {
  background: var(--cor-card);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(13, 27, 62, 0.06);
  overflow: hidden;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.938rem;
  color: var(--cor-primaria);
  list-style: none;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::marker { display: none; content: ''; }
.faq-chevron {
  transition: transform var(--transition);
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--cor-texto-suave);
}
details[open] .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  padding: 0 24px 20px;
}
.faq-answer p {
  font-size: 0.875rem;
  color: var(--cor-texto-suave);
  line-height: 1.6;
}

/* ═══════════ CTA FINAL ═══════════ */
.cta-final {
  background: linear-gradient(135deg, var(--cor-primaria) 0%, var(--cor-verde-medio) 100%);
  padding: 96px 0;
}
.cta-final-inner { text-align: center; }
.cta-final-title {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.cta-final-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 40px;
}
.cta-final-note {
  font-size: 0.813rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 20px;
}

/* ═══════════ FOOTER ═══════════ */
.footer {
  background: var(--cor-primaria);
  padding: 64px 0 32px;
  color: rgba(255, 255, 255, 0.7);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.logo-footer { font-size: 1.25rem; }
.footer-tagline {
  font-size: 0.875rem;
  text-align: center;
}
.footer-brand { text-align: center; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}
.footer-links a {
  font-size: 0.875rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--cor-secundaria); }
.footer-social {
  display: flex;
  gap: 16px;
}
.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.footer-social a:hover { background: var(--cor-secundaria); }
.footer-social svg { width: 20px; height: 20px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  width: 100%;
}
.footer-bottom p {
  font-size: 0.813rem;
  margin-bottom: 4px;
}

/* ═══════════ RESPONSIVE ═══════════ */

/* Tablet */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .phone-mockup { max-width: 320px; }
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}

/* Mobile */
@media (max-width: 768px) {
  .nav { 
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(13, 27, 62, 0.06);
    box-shadow: var(--shadow-md);
  }
  .nav.open { display: flex; }
  .nav-cta { display: none; }
  .nav.open + .btn { display: none; }
  .menu-toggle { display: block; }

  .hero { padding: 100px 0 60px; }
  .hero-title { font-size: 1.75rem; }

  .section { padding: 64px 0; }
  .problem-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; gap: 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .plans-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .plan-card { padding: 32px 24px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .btn-lg { padding: 16px 28px; font-size: 1rem; }
  .hero-title { font-size: 1.5rem; }
  .phone-mockup { max-width: 280px; }
}