/* ===================================================
   COMMERCIA IA — STYLES (LIGHT THEME)
   =================================================== */

:root {
  /* ── LIGHT THEME (backgrounds invertidos do escuro) ── */
  --dark-1: #F0FBFC;                      /* body bg — teal claríssimo */
  --dark-2: #FFFFFF;                      /* seções alt — branco */
  --dark-3: #E4F8FB;                      /* seções teal suave */
  --dark-4: #071829;                      /* painel escuro (chat header, footer) */
  --teal: #00C9D4;
  --teal-light: #33D6DF;
  --teal-dim: rgba(0, 201, 212, 0.12);
  --teal-dim-2: rgba(0, 201, 212, 0.06);
  --blue: #3B82F6;
  --blue-dim: rgba(59, 130, 246, 0.12);
  --orange: #FF6B35;
  --orange-dim: rgba(255, 107, 53, 0.12);
  --green: #4ADE80;
  --white: #071829;                       /* texto principal — azul escuro */
  --gray-100: #0D1E2E;                    /* texto forte */
  --gray-300: #2E4A62;                    /* texto corpo */
  --gray-500: #5A7A90;                    /* texto muted */
  --border: rgba(0, 201, 212, 0.25);
  --border-soft: rgba(7, 24, 41, 0.10);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px rgba(0, 201, 212, 0.12);
  --font: 'Inter', -apple-system, sans-serif;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--dark-1);
  color: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== SECTION COMMON ===== */
.section-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: block;
}
.section-title {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 18px;
}
.section-subtitle {
  font-size: 17px;
  color: var(--gray-300);
  max-width: 600px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--teal) 0%, var(--orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== BUTTONS ===== */
.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #25D366;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.35);
  white-space: nowrap;
  cursor: pointer;
}
.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(37, 211, 102, 0.5);
  background: #1ebe5a;
}
.btn-large {
  font-size: 18px !important;
  padding: 18px 38px !important;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  color: var(--gray-300);
  font-size: 15px;
  font-weight: 500;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-soft);
  transition: var(--transition);
}
.btn-secondary:hover { color: var(--white); border-color: var(--teal); }
.btn-teal-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--dark-4);
  font-size: 15px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 50px;
  border: 1px solid rgba(7,24,41,0.25);
  background: rgba(7,24,41,0.07);
  transition: var(--transition);
  cursor: pointer;
}
.btn-teal-outline:hover { background: var(--dark-4); color: #fff; border-color: var(--dark-4); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-300);
  font-size: 15px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 50px;
  border: 1px solid var(--border-soft);
  background: transparent;
  transition: var(--transition);
  cursor: pointer;
}
.btn-outline:hover { color: var(--white); border-color: var(--teal); }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(240, 251, 252, 0.96);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 2px 30px rgba(0,201,212,0.14);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon { width: 38px; height: 38px; flex-shrink: 0; }
.logo-icon img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  border: 2px solid rgba(0,201,212,0.35);
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}
.logo-ia { color: var(--teal); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-300);
  transition: color var(--transition);
}
.nav-link:hover { color: var(--white); }
.nav-cta {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: var(--dark-4);
  border: 1px solid var(--dark-4);
  padding: 9px 20px;
  border-radius: 50px;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-cta:hover { background: #0A2540; border-color: #0A2540; }
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 800px;
  height: 800px;
  background: radial-gradient(ellipse, rgba(0,201,212,0.14) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-text { max-width: 560px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dark-4);
  background: rgba(7,24,41,0.08);
  border: 1px solid rgba(7,24,41,0.18);
  padding: 7px 16px;
  border-radius: 50px;
  margin-bottom: 28px;
}
.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--teal);
  border-radius: 50%;
  animation: pulse-badge 2s ease-in-out infinite;
}
@keyframes pulse-badge {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}
.hero-title {
  font-size: clamp(36px, 5.5vw, 64px);
  font-weight: 900;
  line-height: 1.06;
  color: var(--white);
  margin-bottom: 22px;
  letter-spacing: -0.025em;
}
.hero-subtitle {
  font-size: 17px;
  color: var(--gray-300);
  margin-bottom: 38px;
  max-width: 500px;
}
.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 52px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
}
.stat { display: flex; flex-direction: column; }
.stat-num {
  font-size: 26px;
  font-weight: 900;
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat-label { font-size: 12px; color: var(--gray-500); margin-top: 4px; }
.stat-divider { width: 1px; height: 36px; background: rgba(7,24,41,0.15); }

/* ── Hero Avatar ── */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}
.hero-avatar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  position: relative;
  width: 100%;
  max-width: 380px;
}
.hero-avatar-glow {
  position: absolute;
  top: -50px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 320px;
  background: radial-gradient(ellipse, rgba(0,201,212,0.22) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero-avatar-img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  border: 4px solid rgba(0,201,212,0.4);
  box-shadow: 0 0 0 8px rgba(0,201,212,0.12), 0 24px 60px rgba(0,201,212,0.2);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

/* Chat mockup */
.chat-mockup {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 24px 70px rgba(0,201,212,0.14), 0 0 0 1px var(--border);
  position: relative;
  z-index: 1;
}
.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--dark-4);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.chat-avatar {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}
.chat-avatar img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  border: 2px solid rgba(0,201,212,0.4);
}
.chat-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.chat-name {
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
}
.chat-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--green);
}
.status-dot-green {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  display: inline-block;
}
.status-dot-green-sm {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 6px var(--green);
}
.chat-body {
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 240px;
  background: #FFFFFF;
}
.chat-bubble {
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.5;
  max-width: 88%;
}
.chat-bubble.ai {
  background: #F0F5F8;
  border: 1px solid rgba(7,24,41,0.08);
  align-self: flex-start;
  color: #1A3545;
  border-bottom-left-radius: 4px;
}
.chat-bubble.user {
  background: var(--teal-dim);
  border: 1px solid var(--border);
  align-self: flex-end;
  color: #006070;
  font-style: italic;
  border-bottom-right-radius: 4px;
}
.chat-bubble em { font-style: normal; color: var(--teal); }
.chat-bubble strong { color: #071829; }
.chat-mic-hint {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--dark-4);
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12px;
  color: rgba(255,255,255,0.55);
}
.mic-pulse {
  width: 32px;
  height: 32px;
  background: rgba(0,201,212,0.2);
  border: 1px solid rgba(0,201,212,0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  animation: mic-ring 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes mic-ring {
  0%,100% { box-shadow: 0 0 0 0 rgba(0,201,212,0.3); }
  50% { box-shadow: 0 0 0 8px rgba(0,201,212,0); }
}

.scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}
.scroll-hint span { font-size: 10px; letter-spacing: 0.15em; color: var(--gray-500); text-transform: uppercase; }
.scroll-line { width: 1px; height: 40px; background: linear-gradient(to bottom, rgba(7,24,41,0.25), transparent); }

/* ===== PROBLEMS ===== */
.problems {
  padding: 100px 0;
  background: var(--dark-2);
}
.problems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.problem-card {
  background: #F8FCFD;
  border: 1px solid rgba(7,24,41,0.08);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color var(--transition), background var(--transition);
}
.problem-card:hover {
  border-color: rgba(255,107,53,0.25);
  background: rgba(255,107,53,0.03);
}
.problem-card--solution {
  background: linear-gradient(135deg, rgba(0,201,212,0.08), rgba(0,201,212,0.04));
  border-color: var(--border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
}
.problem-card--solution:hover {
  border-color: var(--teal) !important;
  background: rgba(0,201,212,0.10) !important;
}
.solution-headline {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.3;
}
.problem-card--solution p {
  font-size: 16px;
  color: var(--gray-300);
}
.problem-card--solution strong { color: var(--teal); }
.problem-icon { margin-bottom: 20px; }
.problem-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--white);
}
.problem-card p {
  font-size: 14px;
  color: var(--gray-300);
}

/* ===== COMO FUNCIONA ===== */
.como-funciona {
  padding: 100px 0;
  background: var(--dark-1);
}
.steps-flow {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 48px;
}
.step-item {
  flex: 1;
  background: #FFFFFF;
  border: 1px solid rgba(0,201,212,0.18);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
}
.step-item:hover {
  border-color: var(--teal);
  box-shadow: 0 8px 32px rgba(0,201,212,0.12);
  transform: translateY(-4px);
}
.step-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--dark-4);
  opacity: 0.12;
  line-height: 1;
  margin-bottom: 16px;
}
.step-icon {
  margin-bottom: 18px;
}
.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--white);
}
.step-content p {
  font-size: 14px;
  color: var(--gray-300);
  line-height: 1.65;
}
.step-content em {
  color: var(--teal);
  font-style: normal;
  font-weight: 500;
}
.step-connector {
  flex-shrink: 0;
  font-size: 24px;
  color: var(--dark-4);
  opacity: 0.25;
  padding-top: 60px;
}
.tech-note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.tech-note-icon {
  flex-shrink: 0;
  color: var(--teal);
  margin-top: 2px;
}
.tech-note p {
  font-size: 14px;
  color: var(--gray-300);
  line-height: 1.65;
}
.tech-note strong { color: var(--white); }

/* ===== FUNCIONALIDADES ===== */
.funcionalidades {
  padding: 100px 0;
  background: var(--dark-3);
}

.mode-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.mode-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-300);
  background: rgba(7,24,41,0.06);
  border: 1px solid rgba(7,24,41,0.12);
  border-radius: 50px;
  padding: 10px 22px;
  cursor: pointer;
  transition: var(--transition);
}
.mode-tab:hover { color: var(--white); border-color: rgba(7,24,41,0.25); }
.mode-tab.active {
  color: #fff;
  background: var(--dark-4);
  border-color: var(--dark-4);
}
.tab-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.tab-indicator.green { background: var(--green); box-shadow: 0 0 8px var(--green); }
.tab-indicator.blue { background: var(--blue); box-shadow: 0 0 8px var(--blue); }
.tab-indicator.teal { background: var(--teal); box-shadow: 0 0 8px var(--teal); }

.mode-panel { display: none; }
.mode-panel.active { display: block; }

.mode-desc {
  background: #FFFFFF;
  border: 1px solid rgba(7,24,41,0.10);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 28px;
}
.mode-desc h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.mode-desc p { font-size: 14px; color: var(--gray-300); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.features-grid--2 {
  grid-template-columns: repeat(2, 1fr);
  max-width: 720px;
}
.feature-card {
  background: #FFFFFF;
  border: 1px solid rgba(7,24,41,0.08);
  border-radius: var(--radius-sm);
  padding: 22px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: var(--transition);
}
.feature-card:hover {
  border-color: rgba(0,201,212,0.35);
  box-shadow: 0 6px 24px rgba(0,201,212,0.10);
  transform: translateY(-2px);
}
.feature-card--wide {
  grid-column: 1 / -1;
}
.feature-card--accent {
  border-color: rgba(59,130,246,0.18);
  background: rgba(59,130,246,0.03);
}
.feature-card--accent:hover {
  border-color: rgba(59,130,246,0.35);
  background: rgba(59,130,246,0.06);
}
.fc-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(7,24,41,0.07);
  color: var(--dark-4);
}
.fc-icon--orange {
  background: var(--orange-dim);
  color: var(--orange);
}
.fc-icon--blue {
  background: var(--blue-dim);
  color: var(--blue);
}
.fc-content h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
.fc-content p {
  font-size: 13px;
  color: var(--gray-300);
  margin-bottom: 10px;
  line-height: 1.5;
}
.fc-example {
  font-size: 12px;
  color: var(--dark-4);
  font-style: italic;
  background: rgba(7,24,41,0.06);
  border: 1px solid rgba(7,24,41,0.10);
  padding: 5px 10px;
  border-radius: 6px;
  display: inline-block;
}

.leads-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  font-size: 13px;
  color: var(--gray-300);
  padding: 14px 18px;
  background: rgba(59,130,246,0.05);
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: var(--radius-sm);
}
.leads-note svg { flex-shrink: 0; color: var(--blue); }

.voice-note {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 32px;
  padding: 16px 22px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 14px;
  color: var(--gray-300);
  max-width: 480px;
}
.voice-note svg { color: var(--teal); flex-shrink: 0; }
.voice-note strong { color: var(--white); }

/* ===== APPS ===== */
.apps {
  padding: 100px 0;
  background: var(--dark-2);
}
.apps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}
.app-card {
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.app-card--primary {
  background: rgba(7,24,41,0.05);
  border: 1px solid rgba(7,24,41,0.15);
}
.app-card--secondary {
  background: #F8FCFD;
  border: 1px solid rgba(7,24,41,0.08);
}
.app-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.app-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fff;
  background: var(--dark-4);
  border: 1px solid var(--dark-4);
  padding: 5px 14px;
  border-radius: 50px;
}
.app-tag--dim {
  color: var(--gray-300);
  background: rgba(7,24,41,0.07);
  border-color: rgba(7,24,41,0.12);
}
.app-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--green);
  font-weight: 600;
}
.app-card h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.25;
}
.app-card > p {
  font-size: 15px;
  color: var(--gray-300);
  line-height: 1.65;
}
.app-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.app-features li {
  font-size: 14px;
  color: var(--gray-300);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.check-teal {
  color: var(--teal);
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1.5;
}
.check-dim {
  color: var(--dark-4);
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1.5;
}

/* ===== POWERED BY ===== */
.powered-by {
  padding: 80px 0;
  background: var(--dark-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.powered-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.powered-left { display: flex; flex-direction: column; gap: 20px; }
.powered-left h2 {
  font-size: clamp(24px, 3.5vw, 38px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--white);
}
.powered-left p {
  font-size: 16px;
  color: var(--gray-300);
  line-height: 1.65;
}
.powered-left strong { color: var(--white); }
.tech-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.tech-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #FFFFFF;
  border: 1px solid rgba(7,24,41,0.08);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  transition: var(--transition);
}
.tech-item:hover { border-color: var(--teal); box-shadow: 0 4px 16px rgba(0,201,212,0.10); }
.tech-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  overflow: hidden;
}
.tech-item div:last-child {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.tech-item strong {
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  display: block;
}
.tech-item span {
  font-size: 11px;
  color: var(--gray-500);
}

/* ===== FAQ ===== */
.faq {
  padding: 100px 0;
  background: var(--dark-2);
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.faq-item {
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  background: rgba(7,24,41,0.05);
  border: 1px solid rgba(7,24,41,0.10);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}
.faq-q:hover { border-color: rgba(0,201,212,0.35); background: rgba(0,201,212,0.05); }
.faq-q[aria-expanded="true"] {
  border-color: var(--border);
  background: rgba(0,201,212,0.07);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}
.faq-icon {
  font-size: 22px;
  font-weight: 300;
  color: var(--teal);
  flex-shrink: 0;
  transition: transform var(--transition);
  line-height: 1;
}
.faq-q[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: rgba(0,201,212,0.04);
  border: 1px solid var(--border);
  border-top: none;
  border-bottom-left-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
}
.faq-a.open {
  max-height: 200px;
  padding: 18px 24px 22px;
}
.faq-a p {
  font-size: 14px;
  color: var(--gray-300);
  line-height: 1.7;
}
.faq-a strong { color: var(--white); }

/* ===== CTA FINAL ===== */
.cta-final {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
  background: #071829;
}
.cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(0,201,212,0.14) 0%, transparent 70%);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
}
.cta-title {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.025em;
  color: #FFFFFF;
}
.cta-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.65);
  max-width: 500px;
  margin: 0 auto 42px;
}
.cta-fine {
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255,255,255,0.38);
}

/* ===== FOOTER ===== */
.footer {
  background: #050c15;
  padding: 60px 0 0;
}
.footer-inner {
  display: flex;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand { flex: 1; }
.footer-tagline { font-size: 14px; color: rgba(255,255,255,0.4); margin-top: 14px; }
.footer-powered { font-size: 12px; color: rgba(255,255,255,0.35); margin-top: 8px; }
.footer-powered a { color: var(--teal); }
.footer-links { display: flex; gap: 48px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.55);
  margin-bottom: 8px;
}
.footer-col a { font-size: 14px; color: rgba(255,255,255,0.35); transition: color var(--transition); }
.footer-col a:hover { color: var(--teal); }
.footer-bottom { padding: 20px 0; }
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.3); }

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 30px rgba(37,211,102,0.5);
  transition: var(--transition);
  color: white;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 40px rgba(37,211,102,0.65);
}
.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(37,211,102,0.4);
  animation: whatsapp-ring 2.5s ease-in-out infinite;
}
@keyframes whatsapp-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-text { max-width: 100%; }
  .hero-visual { justify-content: flex-start; }
  .hero-avatar-wrap { max-width: 440px; }

  .powered-inner { grid-template-columns: 1fr; gap: 48px; }

  .steps-flow {
    flex-wrap: wrap;
    gap: 20px;
  }
  .step-connector { display: none; }
  .step-item { flex: 1 1 45%; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(240,251,252,0.98);
    backdrop-filter: blur(20px);
    padding: 80px 24px 32px;
    gap: 20px;
    z-index: 999;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .nav-links.open .nav-link { font-size: 20px; color: var(--white); }
  .nav-links.open .nav-cta { font-size: 18px; text-align: center; padding: 14px 22px; }

  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero-title { font-size: clamp(32px, 9vw, 44px); }
  .hero-subtitle { font-size: 16px; }
  .hero-actions { gap: 14px; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .hero-visual { display: none; }

  .problems-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .features-grid--2 { grid-template-columns: 1fr; max-width: 100%; }
  .feature-card--wide { grid-column: auto; }
  .apps-grid { grid-template-columns: 1fr; }
  .tech-stack { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 32px; }
  .footer-bottom .container { flex-direction: column; gap: 6px; text-align: center; }
  .step-item { flex: 1 1 100%; }
}

@media (max-width: 600px) {
  .problems-grid { grid-template-columns: 1fr; }
  .mode-tabs { flex-direction: column; align-items: flex-start; }
  .mode-tab { width: 100%; justify-content: flex-start; }
  .hero-stats { display: none; }
  .btn-large { font-size: 16px !important; padding: 16px 28px !important; }
  .app-card { padding: 28px 24px; }
}