/* ============================================
   AI WebBuilder - Styles Globais
   HTML + CSS Puro - Conversão de React
   ============================================ */

/* ===== CSS CUSTOM PROPERTIES (VARIÁVEIS) ===== */
:root {
  /* Cores do Tema */
  --color-background-dark: #03071e;
  --color-background-mid: #0a1128;
  --color-background-purple: #1a0b2e;
  
  --color-cyan-400: #22d3ee;
  --color-cyan-500: #06b6d4;
  --color-cyan-600: #0891b2;
  
  --color-blue-500: #3b82f6;
  --color-blue-600: #2563eb;
  
  --color-purple-400: #a855f7;
  --color-purple-500: #8b5cf6;
  --color-purple-600: #7c3aed;
  
  --color-pink-500: #ec4899;
  
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-900: #111827;
  
  --color-white: #ffffff;
  
  /* Espaçamentos */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Tipografia */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transições */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Z-indexes */
  --z-background: 1;
  --z-interactive: 10;
  --z-content: 20;
  --z-header: 50;
  --z-modal: 100;
}

/* ===== RESET E BASE STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background: linear-gradient(to bottom, var(--color-background-dark), var(--color-background-mid), var(--color-background-purple));
  color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ===== TIPOGRAFIA ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p { margin-bottom: var(--spacing-md); }

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-base);
}

/* ===== UTILITY CLASSES ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.text-gradient {
  background: linear-gradient(to right, var(--color-cyan-400), var(--color-blue-500), var(--color-purple-600));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(to right, var(--color-cyan-500), var(--color-blue-600));
  color: var(--color-white);
  box-shadow: 0 0 0 rgba(6, 182, 212, 0);
  transition: all var(--transition-base);
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

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

.card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: var(--transition-base);
}

.card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(6, 182, 212, 0.2);
}

/* ===== ANIMATED BACKGROUND ===== */
#animated-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-background);
  pointer-events: none;
  opacity: 0.4;
}

#gradient-follower {
  position: fixed;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.3) 0%, rgba(168, 85, 247, 0.3) 50%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: var(--z-interactive);
  transform: translate(-50%, -50%);
  transition: left 0.1s, top 0.1s;
}

.blow-effect {
  position: fixed;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.6) 0%, rgba(168, 85, 247, 0.6) 40%, rgba(236, 72, 153, 0.4) 70%, transparent 100%);
  filter: blur(40px);
  pointer-events: none;
  z-index: calc(var(--z-interactive) + 1);
  transform: translate(-50%, -50%);
  animation: blow-animation 1.5s cubic-bezier(0.19, 1, 0.22, 1) forwards;
}

@keyframes blow-animation {
  from {
    width: 50px;
    height: 50px;
    opacity: 1;
  }
  to {
    width: 600px;
    height: 600px;
    opacity: 0;
  }
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: linear-gradient(to bottom, rgba(3, 7, 30, 0.95), transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: var(--transition-base);
}

.header-logo:hover {
  transform: scale(1.05);
}

.header-logo-img {
  width: 128px;
  height: 40px;
}

.header-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
  list-style: none;
}

.header-menu a {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-300);
  position: relative;
  transition: var(--transition-base);
}

.header-menu a:hover,
.header-menu a.active {
  color: var(--color-cyan-400);
}

.header-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, var(--color-cyan-500), var(--color-blue-600));
  animation: slide-in 0.3s ease-out;
}

@keyframes slide-in {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

.header-cta {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.mobile-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  color: var(--color-white);
  cursor: pointer;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  animation: fade-slide-down 0.3s ease-out;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-300);
  transition: var(--transition-base);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--color-cyan-400);
  background: rgba(255, 255, 255, 0.05);
}

@keyframes fade-slide-down {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== FOOTER ===== */
.footer {
  position: relative;
  overflow: hidden;
  z-index: var(--z-content);
}

.footer-cta-section {
  position: relative;
  padding: var(--spacing-4xl) var(--spacing-md);
  text-align: center;
}

.footer-cta-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent, rgba(6, 182, 212, 0.1), rgba(168, 85, 247, 0.1));
}

.footer-cta-blur {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  max-width: 1024px;
  background: linear-gradient(to right, rgba(6, 182, 212, 0.2), rgba(168, 85, 247, 0.2));
  border-radius: 50%;
  filter: blur(120px);
}

.footer-cta-content {
  position: relative;
  z-index: 10;
  max-width: 1024px;
  margin: 0 auto;
}

.footer-info {
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-2xl) var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-links a {
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
}

.footer-links a:hover {
  color: var(--color-cyan-400);
}

/* ===== ANIMATIONS ===== */
.fade-in {
  animation: fade-in 0.6s ease-out forwards;
}

.fade-in-up {
  animation: fade-in-up 0.6s ease-out forwards;
  opacity: 0;
}

.fade-in-up.visible {
  animation: fade-in-up 0.6s ease-out forwards;
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* ===== GLASSMORPHISM ===== */
.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-hover:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(6, 182, 212, 0.3);
}

/* ===== FORMS ===== */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  color: var(--color-white);
  font-size: var(--font-size-base);
  transition: var(--transition-base);
}

.form-input::placeholder,
.form-select::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-500);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-cyan-500);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ===== ACCORDION (FAQ) ===== */
.accordion-item {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  transition: var(--transition-base);
}

.accordion-header {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: transparent;
  border: none;
  color: var(--color-white);
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-base);
}

.accordion-header:hover {
  background: rgba(255, 255, 255, 0.05);
}

.accordion-icon {
  transition: transform var(--transition-base);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.accordion-item.active .accordion-content {
  max-height: 500px;
}

.accordion-content-inner {
  padding: 0 var(--spacing-xl) var(--spacing-lg) var(--spacing-xl);
  color: var(--color-gray-300);
  line-height: 1.8;
}

/* ===== MODAL ===== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal.active {
  display: flex;
  animation: fade-in 0.3s ease-out;
}

.modal-content {
  background: linear-gradient(to bottom, var(--color-background-dark), var(--color-background-mid));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-2xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: scale-in 0.3s ease-out;
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  cursor: pointer;
  transition: var(--transition-base);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-6xl: 3rem;
    --font-size-7xl: 3.75rem;
  }
  
  .header-menu,
  .header-cta {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .footer-bottom {
    text-align: center;
  }
  
  .footer-links {
    flex-direction: column;
    text-align: center;
  }
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ===== CHATBOT WIDGET ===== */
.chatbot-widget {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: calc(var(--z-header) + 10);
}

.chatbot-button {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(to right, var(--color-cyan-500), var(--color-blue-600));
  color: var(--color-white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.4);
  transition: var(--transition-base);
  animation: pulse-shadow 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.chatbot-button:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(6, 182, 212, 0.6);
}

@keyframes pulse-shadow {
  0%, 100% {
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.4);
  }
  50% {
    box-shadow: 0 4px 30px rgba(6, 182, 212, 0.7);
  }
}

/* ===== BADGES ===== */
.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.badge-popular {
  background: linear-gradient(to right, var(--color-cyan-500), var(--color-blue-600));
  color: var(--color-white);
}

.badge-new {
  background: linear-gradient(to right, var(--color-purple-500), var(--color-pink-500));
  color: var(--color-white);
}

.badge-fast {
  background: linear-gradient(to right, var(--color-blue-500), var(--color-purple-500));
  color: var(--color-white);
}

.badge-ai {
  background: linear-gradient(to right, var(--color-purple-600), var(--color-blue-500));
  color: var(--color-white);
  animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 10px rgba(139, 92, 246, 0.5); }
  50% { box-shadow: 0 0 20px rgba(139, 92, 246, 0.8); }
}