/* =========================================================
   MSG-TOOLS: DESIGN SYSTEM & GLOBAL STYLES
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=BioRhyme:wght@800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --cor-primaria: #0046AD;
  --cor-primaria-hover: #003380;
  --cor-primaria-dark: #002a66;
  --cor-bg-app: #f8fafc;
  --cor-bg-card: #ffffff;
  --texto-principal: #0f172a;
  --texto-secundario: #64748b;
  --borda-clara: #e2e8f0;
  --borda-input: #cbd5e1;
  --bg-input-readonly: #f1f5f9;
  --font-logo: 'BioRhyme', serif;
  --font-ui: 'Inter', sans-serif;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --radius-sm: 4px;
  --max-width-app: 1200px;
  --header-h: 90px;
}

html { scroll-behavior: smooth; scroll-padding-top: 120px; }

@media (max-width: 900px) {
  html { scroll-padding-top: 180px; }
  :root { --header-h: 110px; }
}

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

body {
  font-family: var(--font-ui);
  background-color: var(--cor-bg-app);
  color: var(--texto-principal);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-h);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--cor-bg-app); }
::-webkit-scrollbar-thumb { background: var(--cor-primaria); border-radius: 10px; }

/* HEADER */
header {
  background: #fff;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 2000;
  border-bottom: 1px solid var(--borda-clara);
  transition: all 0.4s ease;
  height: var(--header-h);
  display: flex;
  align-items: center;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--space-4);
}

#nav-menu { flex: 1; display: flex; justify-content: flex-end; }

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
  max-width: 900px;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--cor-primaria), var(--cor-primaria-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-logo);
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
}

.logo-text {
  font-family: var(--font-logo);
  font-size: 26px;
  font-weight: 800;
  color: var(--cor-primaria);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.logo-text span { color: var(--cor-primaria); opacity: 0.7; }

.logo-sub {
  font-size: 10px;
  color: var(--texto-secundario);
  letter-spacing: 4px;
  font-weight: 400;
  margin-top: -2px;
  text-transform: uppercase;
  font-family: var(--font-ui);
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 11px;
  border-radius: 4px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--texto-secundario);
  font-size: 0.73rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-decoration: none;
  transition: all 0.25s ease;
  white-space: nowrap;
  cursor: pointer;
  line-height: 1.2;
}

.nav-btn:hover {
  background: rgba(0, 70, 173, 0.06);
  border-color: rgba(0, 70, 173, 0.15);
  color: var(--cor-primaria);
}

.nav-btn.active {
  background: rgba(0, 70, 173, 0.1);
  border-color: var(--cor-primaria);
  color: var(--cor-primaria);
}

.nav-btn-icon { font-size: 1rem; line-height: 1; display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; }

.nav-btn-label { font-size: inherit; font-weight: inherit; }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-4) var(--space-4);
  position: relative;
  overflow: hidden;
  scroll-margin-top: 90px;
  background: linear-gradient(135deg, var(--cor-primaria-dark) 0%, var(--cor-primaria) 60%, #1a5ec7 100%);
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 800;
  margin-bottom: var(--space-2);
  line-height: 1.1;
  letter-spacing: -2px;
  color: #fff;
}

.hero p {
  font-size: 1.3rem;
  color: rgba(255,255,255,0.75);
  max-width: 800px;
  margin-bottom: var(--space-4);
  font-weight: 400;
}

/* CARDS */
.card {
  background: var(--cor-bg-card);
  border: 1px solid var(--borda-clara);
  padding: var(--space-4);
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
}

.card:hover {
  border-color: var(--cor-primaria);
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 70, 173, 0.1);
}

.card-compact {
  background: var(--cor-bg-card);
  border: 1px solid var(--borda-clara);
  padding: 1.5rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.card-compact:hover {
  border-color: var(--cor-primaria);
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 70, 173, 0.1);
}

/* WHATSAPP FLOATING */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  left: 30px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  transition: all 0.3s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1) rotate(5deg);
  background-color: #128c7e;
}

/* NOTIFICATION SYSTEM */
#notification-container {
  position: fixed;
  top: 90px;
  right: 20px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.notification {
  padding: 16px 24px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  animation: slideIn 0.3s ease;
  max-width: 400px;
}

.notification-success { background: #f0fdf4; border: 1px solid #4ade80; color: #166534; }
.notification-error { background: #fef2f2; border: 1px solid #f87171; color: #991b1b; }
.notification-info { background: #eff6ff; border: 1px solid #60a5fa; color: #1e40af; }

.notification-fade { opacity: 0; transform: translateX(100%); transition: all 0.3s ease; }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(100px); }
  to { opacity: 1; transform: translateX(0); }
}

/* CONTAINER */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

section {
  padding: var(--space-4) var(--space-4);
  scroll-margin-top: 120px;
}

@media (max-width: 900px) {
  section { scroll-margin-top: 180px; }
  .hero { scroll-margin-top: 180px; }
}

/* FOOTER */
.site-footer {
  background: var(--cor-primaria-dark);
  color: #fff;
  text-align: center;
  padding: var(--space-4) var(--space-4);
}

.site-footer p {
  color: rgba(255,255,255,0.65);
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.site-footer .footer-links {
  margin: 1.5rem 0;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.site-footer .footer-links a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.85rem;
  transition: 0.3s;
}

.site-footer .footer-links a:hover {
  color: #fff;
}

/* UTILITIES */
.tech-tag {
  font-family: var(--font-ui);
  color: var(--cor-primaria);
  font-size: 0.75rem;
  background: rgba(0, 70, 173, 0.08);
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  font-weight: 700;
  display: inline-block;
  border: 1px solid rgba(0, 70, 173, 0.15);
}

/* BUTTON SYSTEM */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1;
  white-space: nowrap;
}

.btn-primary {
  background: var(--cor-primaria);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 70, 173, 0.2);
  border-color: var(--cor-primaria);
}

.btn-primary:hover {
  background: var(--cor-primaria-hover);
  border-color: var(--cor-primaria-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 70, 173, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--cor-primaria);
  border-color: var(--cor-primaria);
}

.btn-secondary:hover {
  background: var(--cor-primaria);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--texto-secundario);
  border-color: transparent;
}

.btn-ghost:hover {
  color: var(--cor-primaria);
  background: rgba(0, 70, 173, 0.06);
}

.btn-sm { padding: 0.5rem 1rem; font-size: 0.75rem; }
.btn-lg { padding: 1rem 2.5rem; font-size: 0.95rem; }
.btn-block { width: 100%; display: flex; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* FORM SYSTEM */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  background: #fff;
  border: 1px solid var(--borda-input);
  border-radius: 4px;
  color: var(--texto-principal);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--cor-primaria);
  box-shadow: 0 0 0 3px rgba(0, 70, 173, 0.1);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748b' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-select option {
  background: #fff;
  color: var(--texto-principal);
}

.form-label {
  display: block;
  color: var(--texto-secundario);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
  margin-bottom: 6px;
}

.form-group {
  margin-bottom: 1.25rem;
}

/* BLOG CARDS */
.blog-card {
  padding: 0;
  overflow: hidden;
  text-align: left;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--borda-clara);
  border-radius: 4px;
  transition: transform 0.3s, box-shadow 0.3s;
  background: var(--cor-bg-card);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 70, 173, 0.1);
  border-color: var(--cor-primaria);
}

.blog-card-img {
  width: 100%;
  height: 180px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--borda-clara);
  position: relative;
}

.blog-card-wordcount {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(255,255,255,0.9);
  color: var(--cor-primaria);
  font-size: 0.65rem;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 700;
}

.blog-card-body { padding: 20px; flex: 1; }

.blog-card-tag {
  font-size: 0.7rem;
  background: rgba(0, 70, 173, 0.08);
  color: var(--cor-primaria);
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  font-weight: 800;
  display: inline-block;
  border: 1px solid rgba(0, 70, 173, 0.15);
}

.blog-card-date {
  font-size: 0.75rem;
  color: var(--texto-secundario);
  float: right;
  margin-top: 4px;
}

.blog-card-title {
  margin: 15px 0 10px;
  color: var(--texto-principal);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.8rem;
}

.blog-card-summary {
  font-size: 0.85rem;
  color: var(--texto-secundario);
  line-height: 1.5;
}

.blog-card-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--cor-primaria);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  transition: gap 0.3s;
}

.blog-card-link:hover { gap: 10px; }

.blog-card-footer { padding: 0 20px 20px; }

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

/* TEXT LINK */
.cta-link {
  color: var(--texto-principal);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid var(--cor-primaria);
  padding-bottom: 4px;
  transition: all 0.3s;
}

.cta-link:hover { color: var(--cor-primaria); }

/* LOADING SKELETON */
.skeleton {
  background: var(--bg-input-readonly);
  border-radius: 4px;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { opacity: 0.3; }
  50% { opacity: 0.7; }
  100% { opacity: 0.3; }
}

/* PAGINATION */
.pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.pagination button {
  background: var(--cor-bg-card);
  border: 1px solid var(--borda-input);
  color: var(--texto-principal);
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}

.pagination button:hover:not(:disabled) {
  background: var(--cor-primaria);
  color: #fff;
  border-color: var(--cor-primaria);
}

.pagination button:disabled { opacity: 0.3; cursor: not-allowed; }

.pagination .page-info {
  color: var(--texto-secundario);
  padding: 10px;
  font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  body { padding-top: var(--header-h); padding-bottom: 20px; }

  header { min-height: var(--header-h); height: auto; }

  .nav-container {
    flex-direction: column;
    align-items: stretch;
    padding: 6px 10px 4px;
    gap: 2px;
  }

  .nav-container .logo { text-align: center; margin-bottom: 2px; justify-content: center; }

  .nav-links {
    width: 100%;
    justify-content: space-around;
    padding: 4px 0;
    gap: 2px;
    max-width: 100%;
  }

  #nav-menu { width: 100%; }

  .nav-btn {
    flex-direction: column;
    gap: 1px;
    padding: 4px 6px;
    font-size: 0.5rem;
    border: none;
    background: none;
    border-radius: 4px;
    min-width: 44px;
  }

  .nav-btn:hover { background: rgba(0, 70, 173, 0.06); border: none; }
  .nav-btn.active { background: rgba(0, 70, 173, 0.1); border: none; box-shadow: none; }

  .nav-btn-icon { font-size: 1.2rem; width: 22px; height: 22px; }
  .nav-btn-label { font-size: 0.5rem; }

  #mobile-menu-btn { display: none !important; }

  .container { padding-top: var(--header-h) !important; }

  .hero { min-height: auto; padding: 60px var(--space-2) 40px; }
  .hero h1 { font-size: 2rem; }
  .card { padding: 1rem; }

  .whatsapp-float { bottom: 16px; left: 16px; width: 44px; height: 44px; font-size: 20px; }

  .blog-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .blog-card-img { height: 200px; }
  section { padding: 2.5rem var(--space-2); }
  .hero { min-height: 90svh; padding: 100px var(--space-2) 50px; }
  .hero p { font-size: 1.05rem; }
  .form-input, .form-select, .form-textarea { font-size: 16px; }
  .btn { padding: 14px 20px; }
  .btn-sm { padding: 10px 16px; }
  .whatsapp-float { bottom: 20px; left: 20px; width: 54px; height: 54px; font-size: 24px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 0.95rem; }
  .blog-card-img { height: 180px; }
  section { padding: 2rem var(--space-1); }
  .card { padding: 1.25rem; }
}