/* ===================================
   Estudas? Comigo! - Study Center
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@300;400;600;700;800&family=Open+Sans:wght@300;400;600;700&display=swap');

:root {
  /* Colors - Luxury Palette */
  --primary: #8A5A3C;
  --secondary: #F2B734;
  --bg-body: #FAFAFA;
  --bg-card: #FFFFFF;
  --text-main: #2C2C2C;
  --text-light: #666666;
  --accent-terracotta: #8A5A3C;
  --accent-gold: #F2B734;

  /* Typography */
  --font-heading: 'Nunito', sans-serif;
  --font-body: 'Open Sans', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Effects - The Luxury Touch */
  --shadow-soft: 0 10px 40px -10px rgba(0,0,0,0.08);
  --shadow-hover: 0 20px 50px -12px rgba(138, 90, 60, 0.2);
  --shadow-intense: 0 30px 60px -15px rgba(0,0,0,0.15);
  --glass: blur(12px) saturate(180%);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-pill: 50px;

  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ===================================
   GLOBAL STYLES
   =================================== */

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  overflow-x: hidden;
  padding-top: 80px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-sm {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
}

p {
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.8;
  color: var(--text-light);
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */

@keyframes headerSlideOut {
  from {
    transform: translateY(0);
    opacity: 1;
  }
  to {
    transform: translateY(-100%);
    opacity: 0;
  }
}

@keyframes headerSlideIn {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  background: transparent;
  transform: translateY(0);
  opacity: 1;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.header.scrolled {
  background: rgb(255, 255, 255);
  backdrop-filter: var(--glass);
  -webkit-backdrop-filter: var(--glass);
  box-shadow: var(--shadow-soft);
}

.header.hidden {
  animation: headerSlideOut 2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  pointer-events: none;
}

.header.showing {
  animation: headerSlideIn 2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-menu a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
  transition: var(--transition-smooth);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: var(--transition-smooth);
}

.nav-menu a:hover {
  color: var(--primary);
}

.nav-menu a:hover::after {
  width: 100%;
}

.btn-cta {
  padding: 0.75rem 2rem;
  background: var(--secondary);
  color: var(--text-main);
  font-weight: 700;
  border-radius: var(--radius-pill);
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-soft);
  white-space: nowrap;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  background: #f5c34d;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 28px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

/* ===================================
   BUTTONS & CTAs
   =================================== */

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition-smooth);
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  background: #9d6847;
}

.btn-secondary {
  background: var(--secondary);
  color: var(--text-main);
  box-shadow: var(--shadow-soft);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
  min-height: 120vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--bg-body);
  padding: var(--spacing-xl) 0;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  margin-bottom: var(--spacing-lg);
  color: var(--text-light);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================================
   SECTIONS
   =================================== */

section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: var(--spacing-sm);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--secondary);
  border-radius: 2px;
}

.section-subtitle {
  color: var(--text-light);
  max-width: 600px;
  margin: var(--spacing-md) auto 0;
}

/* ===================================
   STATS SECTION (Animated Counters)
   =================================== */

.stats {
  background: white;
  padding: var(--spacing-lg) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.stat-card {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--bg-body);
  border-radius: var(--radius);
  transition: var(--transition-smooth);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: 1.125rem;
  color: var(--text-light);
  font-weight: 600;
}

/* ===================================
   PROOF SECTION (Wall of Fame)
   =================================== */

.proof {
  background: linear-gradient(180deg, white 0%, var(--bg-body) 100%);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.proof-card {
  background: white;
  border-radius: var(--radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.proof-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-smooth);
}

.proof-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.proof-card:hover::before {
  transform: scaleX(1);
}

.proof-grade {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  text-align: center;
  margin: var(--spacing-md) 0;
}

.proof-label {
  text-align: center;
  color: var(--text-light);
  font-weight: 600;
}

/* ===================================
   TICKER
   =================================== */

.ticker {
  background: var(--primary);
  color: white;
  padding: var(--spacing-md) 0;
  overflow: hidden;
  position: relative;
}

.ticker-track {
  display: flex;
  gap: var(--spacing-lg);
  animation: scroll 30s linear infinite;
  width: max-content;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  white-space: nowrap;
}

.ticker-item::before {
  content: '•';
  color: var(--secondary);
  font-size: 2rem;
}

@keyframes scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* ===================================
   CARDS & SERVICES
   =================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.service-card {
  background: white;
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(138, 90, 60, 0.05) 0%, rgba(242, 183, 52, 0.05) 100%);
  opacity: 0;
  transition: var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.service-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--primary);
}

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

/* ===================================
   PRICING CARDS
   =================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.pricing-card {
  background: white;
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  border: 2px solid transparent;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--secondary);
  transform: scale(1.05);
}

.pricing-card.featured::before {
  content: 'Mais Popular';
  position: absolute;
  top: -15px;
  right: 20px;
  background: var(--secondary);
  color: var(--text-main);
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 700;
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.pricing-card.featured:hover {
  transform: translateY(-5px) scale(1.05);
}

.pricing-header h3 {
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.pricing-price {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  margin: var(--spacing-md) 0;
}

.pricing-price span {
  font-size: 1.125rem;
  color: var(--text-light);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.pricing-features li {
  padding: var(--spacing-xs) 0;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.pricing-features li::before {
  content: '✓';
  color: var(--secondary);
  font-weight: 700;
  font-size: 1.25rem;
}

/* ===================================
   CONTACT SECTION
   =================================== */

.contact-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.contact-info {
  background: white;
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-soft);
}

.contact-info h3 {
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--bg-body);
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-icon {
  font-size: 1.5rem;
  color: var(--secondary);
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
  color: var(--primary);
}

.contact-details p {
  font-size: 0.95rem;
}

.contact-details a {
  color: var(--primary);
  transition: var(--transition-smooth);
}

.contact-details a:hover {
  color: var(--secondary);
}

/* ===================================
   FORMS (Floating Labels)
   =================================== */

.contact-form {
  background: white;
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-soft);
}

.form-group {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 1.25rem 1rem 0.5rem;
  border: 2px solid var(--bg-body);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: var(--transition-smooth);
  background: var(--bg-body);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: white;
}

.form-label {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  font-size: 1rem;
  transition: var(--transition-smooth);
  pointer-events: none;
  background: transparent;
  padding: 0 0.25rem;
}

.form-textarea + .form-label {
  top: 1.5rem;
  transform: translateY(0);
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label,
.form-textarea:focus + .form-label,
.form-textarea:not(:placeholder-shown) + .form-label {
  top: 0.5rem;
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
  padding-top: 1.5rem;
}

.form-submit {
  width: 100%;
  padding: 1.25rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1.125rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-soft);
}

.form-submit:hover {
  background: var(--secondary);
  color: var(--text-main);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* ===================================
   MAP
   =================================== */

.map-container {
  margin-top: var(--spacing-lg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  aspect-ratio: 16 / 9;
  position: relative;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  border: none;
}

/* ===================================
   FOOTER
   =================================== */

.footer {
  background: var(--text-main);
  color: white;
  padding: var(--spacing-lg) 0 var(--spacing-md);
  margin-top: var(--spacing-xl);
}

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

.footer-column h4 {
  color: var(--secondary);
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition-smooth);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--secondary);
  padding-left: 5px;
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  font-size: 1.25rem;
}

.social-icon:hover {
  background: var(--secondary);
  color: var(--text-main);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* ===================================
   SCROLL REVEAL ANIMATIONS
   =================================== */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animations for grid items */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-stagger.active > *:nth-child(1) { transition-delay: 0.1s; }
.reveal-stagger.active > *:nth-child(2) { transition-delay: 0.2s; }
.reveal-stagger.active > *:nth-child(3) { transition-delay: 0.3s; }
.reveal-stagger.active > *:nth-child(4) { transition-delay: 0.4s; }
.reveal-stagger.active > *:nth-child(5) { transition-delay: 0.5s; }
.reveal-stagger.active > *:nth-child(6) { transition-delay: 0.6s; }

.reveal-stagger.active > * {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================
   FLOATING ANIMATION
   =================================== */

@keyframes float {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-20px) scale(1.05);
  }
}

/* ===================================
   GALLERY GRID
   =================================== */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--bg-body);
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: white;
  padding: var(--spacing-md);
  font-weight: 600;
}

/* ===================================
   DISCIPLINES LIST
   =================================== */

.disciplines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.discipline-item {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--secondary);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

.discipline-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-hover);
  border-left-color: var(--primary);
}

.discipline-item h4 {
  color: var(--primary);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
}

.discipline-item p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 1024px) {
  :root {
    --spacing-xl: 4rem;
    --spacing-lg: 3rem;
  }

  .contact-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding-top: 150px;
    padding-bottom: 80px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  /* Menu Mobile */
  .mobile-nav {
    width: 100%;
    max-width: 320px;
  }
  
  /* Ajuste dos Grids */
  .pricing-grid,
  .services-grid, 
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
  }

  .container,
  .container-sm {
    padding: 0 var(--spacing-sm);
  }

  .btn {
    padding: 0.875rem 1.5rem;
    width: 100%;
  }
}

/* ===================================
   MOBILE MENU STYLES
   =================================== */

/* O botão do Hambúrguer */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 6px;
  border: none;
  background: transparent;
  cursor: pointer;
  z-index: 60;
}

/* Linhas do Hambúrguer */
.mobile-menu-toggle span {
  display: block;
  height: 2px;
  background-color: var(--primary);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
  width: 24px;
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
  width: 24px;
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: 100%;
  max-width: 400px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 50;
  border-left: 1px solid rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
}

.mobile-nav.active {
  transform: translateX(0);
  box-shadow: -10px 0 30px rgba(0,0,0,0.1);
}

/* ===================================
   UTILITY CLASSES
   =================================== */

.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.bg-white {
  background: white;
}

.bg-light {
  background: var(--bg-body);
}

/* Print styles */
@media print {
  .header,
  .footer,
  .btn,
  .mobile-menu-toggle {
    display: none;
  }
}