/* Base Styles */
:root {
  /* Colors */
  --color-primary: #ff6200;
  --color-primary-hover: #e65800;
  --color-primary-rgb: 255, 98, 0; /* Para opacidade em box-shadows e backgrounds */
  --color-background: #ffffff;
  --color-foreground: #101010;
  --color-background-rgb: 255, 255, 255; /* Para header com backdrop-filter */
  --color-secondary: #f5f5f5;
  --color-muted: #f0f0f0;
  --color-muted-foreground: #808080;
  --color-border: #e5e5e5;
  --color-input: #e5e5e5;
  --color-card: #ffffff;
  --color-card-foreground: #101010;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.07), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border Radius */
  --radius: 0.5rem;

  /* Transition Speed */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

.dark {
  --color-background: #0a0a0a;
  --color-foreground: #f2f2f2;
  --color-background-rgb: 10, 10, 10; /* Para header com backdrop-filter no modo escuro */
  --color-secondary: #171717;
  --color-muted: #262626;
  --color-muted-foreground: #a0a0a0;
  --color-border: #333333;
  --color-input: #333333;
  --color-card: #121212;
  --color-card-foreground: #f2f2f2;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.5;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}
.logo-img, .footer-logo {
  transition: opacity 0.15s ease-in-out; /* Para efeito de fade na troca de logo via JS */
}

/* Container */
.container {
  width: 100%;
  max-width: 1400px;
  padding: 0 1rem;
  margin: 0 auto;
}
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

/* Section Layouts */
.section-padding { padding: 4rem 0; }
@media (min-width: 768px) { .section-padding { padding: 6rem 0; } }

.section-header { text-align: center; margin-bottom: 4rem; }
.section-title { font-size: 1.875rem; font-weight: 700; margin-bottom: 1rem; }
.section-subtitle { font-size: 1.125rem; color: var(--color-muted-foreground); max-width: 48rem; margin: 0 auto; }

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-weight: 500;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color var(--transition-normal), transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
  font-size: 1rem;
}
.btn-primary { background-color: var(--color-primary); color: #ffffff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background-color: var(--color-primary-hover); transform: scale(1.03) translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: scale(0.97); }
.btn-full { width: 100%; justify-content: center; }

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50; /* Acima do menu mobile quando este estiver em position absolute, mas abaixo do toggle */
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal), padding var(--transition-normal);
  padding: 1.25rem 0;
}
.header.scrolled {
  background-color: rgba(var(--color-background-rgb), 0.85); /* Usar var RGB */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px); /* Para Safari */
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
}
.header .container { display: flex; align-items: center; justify-content: space-between; }
.logo-img { height: 2.5rem; transition: transform var(--transition-fast); }
.logo-img:hover { transform: scale(1.05); }
@media (min-width: 768px) { .logo-img { height: 3rem; } }

/* Navigation */
.desktop-nav {
  display: none; /* Mobile first: escondido por padrão */
  align-items: center;
  gap: 2rem;
}
@media (min-width: 768px) { .desktop-nav { display: flex; } } /* Visível em telas maiores */

.nav-link {
  font-weight: 500;
  transition: color var(--transition-fast), transform var(--transition-fast);
  position: relative;
}
.nav-link:hover { color: var(--color-primary); transform: translateY(-1px); }
.desktop-nav .nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 50%;
  background-color: var(--color-primary);
  transition: width var(--transition-normal), left var(--transition-normal);
}
.desktop-nav .nav-link:hover::after { width: 100%; left: 0; }

.mobile-nav-toggle {
  display: flex; /* Mobile first: visível por padrão */
  align-items: center;
  z-index: 60; /* Mais alto para ficar acima do menu aberto */
}
@media (min-width: 768px) { .mobile-nav-toggle { display: none; } } /* Escondido em telas maiores */

.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-foreground);
  padding: 0.5rem;
  position: relative;
  width: 30px;
  height: 30px;
  transition: transform var(--transition-normal);
}
.menu-toggle:hover { transform: scale(1.1); }
.menu-toggle svg { display: block; width: 100%; height: 100%; overflow: visible; }
.menu-toggle svg line {
  transition: transform 0.3s ease-in-out, opacity 0.2s ease-in-out;
  transform-origin: center;
  stroke: currentColor; /* Garantir que a cor da linha seja herdada */
}
.menu-toggle.active svg line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.active svg line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.active svg line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-background);
  padding-top: 6rem; /* Ajustar conforme altura do header para conteúdo começar abaixo */
  box-shadow: var(--shadow-lg);
  z-index: 55; /* Abaixo do toggle, acima do resto */
  opacity: 0;
  transform: translateX(-100%);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  overflow-y: auto;
}
.mobile-nav.open {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transform: translateX(0%);
}
.mobile-nav .container { display: flex; flex-direction: column; align-items: center; width: 100%; }
.mobile-nav .nav-link {
  display: block;
  padding: 1rem 0;
  font-size: 1.25rem;
  text-align: center;
  width: 80%;
  opacity: 0;
  transform: translateY(20px);
  transition: color var(--transition-fast), background-color var(--transition-fast), opacity 0.3s ease, transform 0.3s ease;
}
.mobile-nav.open .nav-link { opacity: 1; transform: translateY(0); }
.mobile-nav.open .nav-link:nth-child(1) { transition-delay: 0.1s, 0.1s, 0.1s, 0.1s; }
.mobile-nav.open .nav-link:nth-child(2) { transition-delay: 0.15s, 0.15s, 0.15s, 0.15s; }
.mobile-nav.open .nav-link:nth-child(3) { transition-delay: 0.2s, 0.2s, 0.2s, 0.2s; }
.mobile-nav.open .nav-link:nth-child(4) { transition-delay: 0.25s, 0.25s, 0.25s, 0.25s; }
.mobile-nav.open .nav-link:nth-child(5) { transition-delay: 0.3s, 0.3s, 0.3s, 0.3s; }
.mobile-nav .nav-link:hover,
.mobile-nav .nav-link:focus {
  color: var(--color-primary);
  background-color: var(--color-muted);
  border-radius: var(--radius);
}

/* Theme Toggle */
.theme-toggle {
  background-color: var(--color-secondary);
  border: none;
  border-radius: 9999px;
  padding: 0.5rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  color: var(--color-foreground);
  display: flex;
  align-items: center;
  justify-content: center;
}
.theme-toggle:hover { background-color: var(--color-muted); transform: scale(1.1); }
.moon-icon, .sun-icon { display: block; transition: opacity var(--transition-fast), transform var(--transition-fast); }
.hidden { display: none !important; }
.theme-toggle .moon-icon.hidden,
.theme-toggle .sun-icon.hidden { opacity: 0; transform: rotate(-90deg) scale(0.5); }

/* Hero Section */
.hero { position: relative; padding-top: 8rem; padding-bottom: 6rem; overflow: hidden; }
@media (min-width: 768px) { .hero { padding-top: 12rem; padding-bottom: 8rem; } }
@media (min-width: 1024px) { .hero { padding-top: 14rem; padding-bottom: 10rem; } }
.bg-elements { position: absolute; inset: 0; z-index: -10; overflow: hidden; }
.bg-circle { position: absolute; border-radius: 9999px; transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.circle-1 { right: 0; top: 2.5rem; width: 24rem; height: 24rem; background-color: rgba(var(--color-primary-rgb), 0.1); filter: blur(3rem); }
.circle-2 { left: 0; bottom: 2.5rem; width: 16rem; height: 16rem; background-color: rgba(var(--color-primary-rgb), 0.05); filter: blur(3rem); }
.hero-content { max-width: 64rem; margin: 0 auto; text-align: center; }
.hero h1 { font-size: 2.25rem; font-weight: 700; line-height: 1.2; margin-bottom: 1.5rem; letter-spacing: -0.025em; }
@media (min-width: 768px) { .hero h1 { font-size: 3rem; } }
@media (min-width: 1024px) { .hero h1 { font-size: 3.75rem; } }
.hero p { font-size: 1.125rem; margin-bottom: 2.5rem; color: var(--color-muted-foreground); max-width: 48rem; margin-left: auto; margin-right: auto; }
@media (min-width: 768px) { .hero p { font-size: 1.25rem; } }

/* Services Section */
.bg-secondary { background-color: var(--color-secondary); }
.services-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 768px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }
.service-card {
  background-color: var(--color-card); padding: 2rem; border-radius: var(--radius); box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
  display: flex; flex-direction: column; align-items: flex-start;
}
.service-card:hover { box-shadow: var(--shadow-xl); transform: translateY(-8px); }
.service-icon { color: var(--color-primary); margin-bottom: 1.5rem; transition: transform var(--transition-normal); }
.service-card:hover .service-icon { transform: scale(1.1) rotate(-5deg); }
.service-card h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; }
.service-card p { color: var(--color-muted-foreground); }

/* Advantages Section */
.advantages-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; }
@media (min-width: 768px) { .advantages-grid { grid-template-columns: 1fr 1fr; align-items: center; } }
.advantages-box {
  background-color: rgba(var(--color-primary-rgb), 0.1); padding: 1.5rem; border-radius: 1.5rem;
  position: relative; overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.advantages-box:hover { transform: scale(1.02); box-shadow: var(--shadow-lg); }
@media (min-width: 768px) { .advantages-box { padding: 3rem; } }
.icon-bg { position: absolute; bottom: -0.5rem; right: -0.5rem; transition: transform var(--transition-slow); }
.advantages-box:hover .icon-bg { transform: scale(1.2) rotate(5deg); }
.icon-bg .users-icon { color: rgba(var(--color-primary-rgb), 0.2); }
.advantages-box h2 { font-size: 2rem; font-weight: 700; margin-bottom: 1.5rem; position: relative; z-index: 1; }
.advantages-box p { color: var(--color-muted-foreground); margin-bottom: 1rem; position: relative; z-index: 1; }
.advantage-card {
  background-color: var(--color-secondary); padding: 1.5rem; border-radius: 1rem; margin-bottom: 1.5rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.advantage-card:hover { transform: translateX(5px); box-shadow: var(--shadow-md); }
.advantage-card h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; }
.advantage-card p { color: var(--color-muted-foreground); }

/* Portfolio Section */
.portfolio-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 768px) { .portfolio-grid { grid-template-columns: repeat(2, 1fr); } }
.portfolio-card {
  position: relative; overflow: hidden; border-radius: var(--radius); aspect-ratio: 16 / 9;
  background-color: var(--color-card); box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}
.portfolio-card:hover { box-shadow: var(--shadow-xl); }
.portfolio-overlay { position: absolute; inset: 0; background-color: rgba(0, 0, 0, 0.3); z-index: 1; transition: background-color var(--transition-normal); }
.portfolio-card:hover .portfolio-overlay { background-color: rgba(0, 0, 0, 0.1); }
.portfolio-image { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.portfolio-card:hover .portfolio-image { transform: scale(1.05); }
.portfolio-content {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 1.5rem; z-index: 2; transition: opacity var(--transition-fast);
}
.portfolio-card:hover .portfolio-content { opacity: 0; }
.portfolio-category {
  font-size: 0.875rem; font-weight: 500; background-color: rgba(255, 255, 255, 0.8); color: var(--color-primary);
  padding: 0.25rem 0.75rem; border-radius: 9999px; width: fit-content; margin-bottom: 0.5rem;
}
.portfolio-content h3 { font-size: 1.5rem; font-weight: 600; color: white; }
.portfolio-hover {
  position: absolute; inset: 0; background-color: rgba(var(--color-primary-rgb), 0.9);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: scale(0.95);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  z-index: 3;
}
.portfolio-card:hover .portfolio-hover { opacity: 1; transform: scale(1); }
.hover-content { text-align: center; padding: 1.5rem; }
.hover-content svg { color: white; margin: 0 auto 1rem; transition: transform var(--transition-normal); }
.portfolio-card:hover .hover-content svg { transform: rotateY(180deg); }
.hover-content h3 { color: white; font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; }
.hover-content p { color: rgba(255, 255, 255, 0.9); }

/* About Section */
.about-main { background-color: var(--color-secondary); border-radius: var(--radius); padding: 2rem; margin-bottom: 3rem; }
.about-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 768px) { .about-grid { grid-template-columns: repeat(2, 1fr); align-items: flex-start; } }
.about-left h3 { font-size: 1.5rem; font-weight: 600; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
.about-left p { color: var(--color-muted-foreground); margin-bottom: 1rem; }
.about-right .info-box { background-color: var(--color-background); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow-sm); }
.info-box svg { color: var(--color-primary); margin-bottom: 1rem; }
.info-box p { color: var(--color-muted-foreground); margin-bottom: 1rem; }
.values-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 768px) { .values-grid { grid-template-columns: repeat(3, 1fr); } }
.value-card {
  background-color: var(--color-secondary); border-radius: var(--radius); padding: 1.5rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.value-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.value-card h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; }
.value-card p { color: var(--color-muted-foreground); }
.quote-box {
  margin-top: 4rem; padding: 2rem; border: 1px solid rgba(var(--color-primary-rgb), 0.2);
  background-color: rgba(var(--color-primary-rgb), 0.05); border-radius: var(--radius);
  text-align: center; transition: box-shadow var(--transition-normal);
}
.quote-box:hover { box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.1); }
.quote-box blockquote { font-style: italic; font-size: 1.125rem; color: var(--color-muted-foreground); margin-bottom: 1rem; }
.quote-box cite { font-size: 0.875rem; font-weight: 500; }

/* Contact Section */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; }
@media (min-width: 768px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
.contact-form { background-color: var(--color-card); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow-sm); }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.5rem; }
.form-group input, .form-group textarea {
  width: 100%; padding: 0.75rem 1rem; border-radius: var(--radius); border: 1px solid var(--color-border);
  background-color: var(--color-background); color: var(--color-foreground);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none; font-family: inherit; font-size: 1rem;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.2);
}
.form-group textarea { resize: none; }
.contact-info {
  background-color: var(--color-card); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow-sm);
  height: 100%; display: flex; flex-direction: column;
}
.contact-info h3 { font-size: 1.5rem; font-weight: 600; margin-bottom: 1.5rem; }
.info-group { margin-bottom: 1.5rem; }
.info-group h4 { font-size: 1.125rem; font-weight: 500; margin-bottom: 0.5rem; }
.info-group p { color: var(--color-muted-foreground); margin-bottom: 0.25rem; }
.info-group a { color: var(--color-muted-foreground); transition: color var(--transition-fast); }
.info-group a:hover { color: var(--color-primary); }
.social-links { margin-top: auto; }
.social-links h4 { font-size: 1.125rem; font-weight: 500; margin-bottom: 1rem; }
.social-icons { display: flex; gap: 1rem; }
.social-icons a {
  background-color: var(--color-secondary); color: var(--color-foreground); padding: 0.75rem; border-radius: 9999px;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  display: flex; align-items: center; justify-content: center;
}
.social-icons a:hover { background-color: var(--color-primary); color: white; transform: translateY(-3px) scale(1.1); }

/* Footer */
.footer { background-color: var(--color-card); border-top: 1px solid var(--color-border); }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; padding-top: 4rem; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-brand { margin-bottom: 1.5rem; }
.footer-logo { height: 2.5rem; margin-bottom: 1.5rem; }
.footer-brand p { color: var(--color-muted-foreground); margin-bottom: 1.5rem; max-width: 32rem; }
.footer-contact { margin-bottom: 1rem; }
.footer-contact a { display: flex; align-items: center; gap: 0.5rem; color: var(--color-muted-foreground); transition: color var(--transition-fast); }
.footer-contact a:hover { color: var(--color-primary); }
.footer-contact a:hover svg { transform: scale(1.1); }
.footer-links h3 { font-size: 1rem; font-weight: 600; margin-bottom: 1.5rem; }
.footer-links ul { display: flex; flex-direction: column; gap: 1rem; }
.footer-links a { color: var(--color-muted-foreground); transition: color var(--transition-fast), padding-left var(--transition-fast); }
.footer-links a:hover { color: var(--color-primary); padding-left: 5px; }
.footer-bottom {
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
  padding-top: 2rem; padding-bottom: 2rem; margin-top: 4rem;
  border-top: 1px solid var(--color-border);
}
@media (min-width: 768px) { .footer-bottom { flex-direction: row; justify-content: space-between; } }
.footer-bottom p { font-size: 0.875rem; color: var(--color-muted-foreground); }
.footer-cta {
  display: flex; align-items: center; gap: 0.5rem; color: var(--color-primary); font-weight: 500;
  transition: color var(--transition-fast), letter-spacing var(--transition-fast);
}
.footer-cta:hover { color: var(--color-primary-hover); letter-spacing: 0.5px; }
.footer-cta:hover svg { transform: translateX(3px); }

/* WhatsApp Button */
.whatsapp-button {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 50; background-color: #25D366; color: white;
  padding: 1rem; border-radius: 9999px; box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex; align-items: center; justify-content: center;
}
.whatsapp-button:hover { transform: scale(1.1) rotate(5deg); box-shadow: var(--shadow-lg); }
.whatsapp-button svg { transition: transform var(--transition-fast); }
.whatsapp-button:hover svg { transform: scale(1.1); }

/* Toast */
.toast-container { position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%); z-index: 100; width: 100%; max-width: 24rem; padding: 0 1rem; }
.toast {
  background-color: var(--color-card); color: var(--color-card-foreground); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 1rem; display: flex; align-items: center; justify-content: space-between;
  opacity: 0; transform: translateY(1rem);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast-content { display: flex; align-items: center; gap: 0.75rem; }
.toast-message { font-size: 0.875rem; }
.toast-close { background: none; border: none; font-size: 1.25rem; cursor: pointer; color: var(--color-muted-foreground); transition: color var(--transition-fast); }
.toast-close:hover { color: var(--color-foreground); }
.toast.error { background-color: #ffebee; color: #c62828; border-left: 4px solid #c62828; }
.dark .toast.error { background-color: #2d1a1a; color: #ef9a9a; border-left: 4px solid #ef9a9a; }
.toast.success { border-left: 4px solid var(--color-primary); }
.dark .toast.success { border-left: 4px solid var(--color-primary); }

/* Text Utilities */
.text-primary { color: var(--color-primary); }
.italic { font-style: italic; }
.font-medium { font-weight: 500; }

/* Animation Utilities */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.animate { opacity: 0; }
.fade-in { animation: fadeIn 0.4s ease-out forwards; }
.slide-up { animation: slideUp 0.6s ease-out forwards; }
.animate.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.animate.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.animate.delay-500 { animation-delay: 500ms; }
.animate-spin { animation: spin 1s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* Responsive Visibility */
@media (max-width: 767px) { .desktop-only { display: none; } }
@media (min-width: 768px) { .mobile-only { display: none; } }