/* ============================================
   KeepEdu - Site Institucional
   Estilos da Home
   ============================================ */

:root {
  --bg-dark: #0A0D14;
  --bg-card: #121824;
  --border-color: rgba(255, 255, 255, 0.08);

  /* Cores da Nova Identidade Visual KeepEdu */
  --color-brand-cyan: #00D2B8;
  --color-brand-blue: #0066FF;
  --color-brand-purple: #6B46C1;

  /* Cores dos Módulos da Nova Identidade */
  --module-avisos: #5835D4;
  --module-boletins: #22A04B;
  --module-simulados: #0052CC;
  --module-desempenho: #E88B4E;

  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --white: #FFFFFF;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 13, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-text {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  border-left: 1px solid var(--border-color);
  padding-left: 10px;
  display: none;
}

@media(min-width: 768px) {
  .logo-tagline { display: block; }
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--white);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-brand-blue), var(--color-brand-cyan));
  color: var(--white);
  padding: 0.75rem 1.6rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-block;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(0, 102, 255, 0.4);
}

/* Hero Section */
.hero {
  padding: 10rem 2rem 5rem;
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.85rem;
  color: var(--color-brand-cyan);
  margin-bottom: 2rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title span {
  background: linear-gradient(135deg, #00D2B8, #0066FF, #A855F7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--white);
  padding: 0.75rem 1.6rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.3s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Identity Banner / Module Palette */
.identity-palette {
  max-width: 1100px;
  margin: 4rem auto 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.palette-card {
  background: var(--bg-dark);
  border-radius: 14px;
  padding: 1.2rem;
  border: 1px solid var(--border-color);
  text-align: left;
}

.palette-color-bar {
  height: 8px;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.card-avisos { border-left: 4px solid var(--module-avisos); }
.card-avisos .palette-color-bar { background: var(--module-avisos); }

.card-boletins { border-left: 4px solid var(--module-boletins); }
.card-boletins .palette-color-bar { background: var(--module-boletins); }

.card-simulados { border-left: 4px solid var(--module-simulados); }
.card-simulados .palette-color-bar { background: var(--module-simulados); }

.card-desempenho { border-left: 4px solid var(--module-desempenho); }
.card-desempenho .palette-color-bar { background: var(--module-desempenho); }

.palette-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.palette-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Partners Section */
.partners-section {
  padding: 4rem 2rem;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.01);
  text-align: center;
}

.partners-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.partners-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.partner-logo {
  height: 52px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.7;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.partner-logo:hover {
  opacity: 1;
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .partner-logo {
    height: 40px;
    max-width: 180px;
  }
}

/* Apps Section */
.apps-section {
  padding: 6rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-header h2 {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2.5rem;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.app-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.app-card-familias .app-badge {
  background: rgba(0, 210, 184, 0.15);
  color: #00D2B8;
}

.app-card-enterprise .app-badge {
  background: rgba(0, 102, 255, 0.15);
  color: #38BDF8;
}

.app-card h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.app-card p {
  color: var(--text-muted);
  margin-bottom: 1.8rem;
  font-size: 0.95rem;
}

.app-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.app-features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: #E2E8F0;
}

.app-features-list li::before {
  content: "✓";
  color: var(--color-brand-cyan);
  font-weight: bold;
}

/* Core Features Grid */
.features-section {
  padding: 6rem 2rem;
  background: rgba(18, 24, 36, 0.5);
  border-top: 1px solid var(--border-color);
}

.features-container {
  max-width: 1280px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-box {
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 2rem;
  transition: transform 0.3s ease;
}

.feature-box:hover {
  transform: translateY(-5px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}

.feature-box h4 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.feature-box p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Social Proof / Testimonials */
.testimonials-section {
  padding: 6rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-quote {
  font-size: 0.98rem;
  color: #CBD5E1;
  font-style: italic;
  margin-bottom: 1.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-brand-cyan), var(--color-brand-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--white);
}

.author-info h5 {
  font-size: 0.95rem;
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Footer */
footer {
  background: #06080D;
  border-top: 1px solid var(--border-color);
  padding: 4rem 2rem 2rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
}

.footer-links h5 {
  font-size: 1rem;
  margin-bottom: 1.2rem;
  color: var(--white);
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .nav-links { display: none; }
}

/* ============================================
   Páginas Internas (Contato & Política de Privacidade)
   ============================================ */

.page-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.back-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.6rem 1.4rem;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.back-link:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(-3px);
}

.page-main {
  flex: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 9rem 2rem 5rem;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.page-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 2.5rem;
  width: 100%;
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-header {
  text-align: center;
  margin-bottom: 2rem;
}

.page-header .page-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: rgba(0, 210, 184, 0.15);
  color: var(--color-brand-cyan);
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.page-header h1 span {
  background: linear-gradient(135deg, #00D2B8, #0066FF, #A855F7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-header p {
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.page-header .support-email {
  color: var(--color-brand-cyan);
  font-weight: 600;
}

/* Formulário de Contato */
.contact-card {
  max-width: 550px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: #E2E8F0;
}

.form-control {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  transition: all 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-brand-cyan);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 4px rgba(0, 210, 184, 0.12);
}

.form-control::placeholder {
  color: #64748B;
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

.btn-submit {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--color-brand-blue), var(--color-brand-cyan));
  color: var(--white);
  border: none;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(0, 102, 255, 0.4);
}

.btn-submit:active {
  transform: translateY(1px);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-message {
  margin-top: 1rem;
  text-align: center;
  font-weight: 600;
  display: none;
}

.form-message.success {
  color: var(--color-brand-cyan);
}

.form-message.error {
  color: #F87171;
}

/* Política de Privacidade */
.policy-card {
  max-width: 760px;
}

.policy-card .page-header {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.policy-content h2 {
  color: var(--color-brand-cyan);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 1.75rem 0 0.75rem;
}

.policy-content h2:first-of-type {
  margin-top: 0;
}

.policy-content p {
  color: #CBD5E1;
  font-size: 0.95rem;
  margin: 0 0 1rem;
  text-align: justify;
}

.policy-content ul {
  margin: 0.5rem 0 1rem 1.5rem;
  padding: 0;
}

.policy-content li {
  color: #CBD5E1;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.policy-content li strong,
.policy-content p strong {
  color: var(--text-main);
}

.download-wrapper {
  text-align: center;
  margin-top: 2rem;
}

/* Footer compacto das páginas internas */
.footer-slim {
  background: #06080D;
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 480px) {
  .page-main {
    padding: 8rem 1rem 3rem;
  }

  .page-card {
    padding: 2rem 1.5rem;
  }

  .page-header h1 {
    font-size: 1.6rem;
  }
}