/* ==========================================================================
   SimplyPost Landing Page Styles
   Organized: Custom Properties → Base → Sections → Animations → Responsive
   ========================================================================== */

/* ==========================================================================
   1. CSS Custom Properties (:root) — Brand Colors
   ========================================================================== */
:root {
  --primary: #ff6b35;
  --primary-dark: #e55a2b;
  --secondary: #004e89;
  --success: #2d8f47;
  --warning: #f7931e;
  --accent: #1a659e;
}

/* ==========================================================================
   2. Base & Typography
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600;700&display=swap');

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

html {
  overflow-x: hidden;
}

body {
  font-family: 'Space Grotesk', sans-serif;
  background: linear-gradient(135deg, var(--secondary) 0%, #0a1628 100%);
  color: white;
  overflow-x: hidden;
}

/* ==========================================================================
   3. Navbar
   ========================================================================== */
.navbar {
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 15px 0;
  position: fixed;
  width: 100%;
  z-index: 1000;
}

.navbar-brand {
  z-index: 1001;
}

.navbar-brand img {
  max-height: 48px;
}

.nav-link {
  color: rgba(255, 255, 255, 0.7) !important;
  margin: 0 15px;
  transition: color 0.3s;
}

.nav-link:hover {
  color: var(--primary) !important;
}

.nav-link.active {
  color: var(--primary) !important;
  font-weight: 600;
}

.btn-nav {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 10px 30px;
  border-radius: 25px;
  border: none;
  font-weight: 600;
  transition: all 0.3s;
}

.btn-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
  color: white;
}

/* Navbar toggler (hamburger) — white icon on dark background */
.navbar-toggler {
  border-color: rgba(255, 255, 255, 0.2);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ==========================================================================
   4. Hero Section
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding-top: 100px;
}

.hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.8;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 30px;
  color: white;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 40px;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary-custom {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 18px 50px;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  transition: all 0.3s;
  box-shadow: 0 10px 40px rgba(255, 107, 53, 0.3);
}

.btn-primary-custom:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 50px rgba(255, 107, 53, 0.5);
  color: white;
}

.btn-secondary-custom {
  background: transparent;
  color: white;
  padding: 18px 50px;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 600;
  border: 2px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s;
}

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

/* ==========================================================================
   5. Chat Demo
   ========================================================================== */
.chat-demo {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 25px;
  overflow: hidden;
  backdrop-filter: blur(10px);
  max-width: 450px;
  margin: 0 auto;
}

.chat-header {
  background: var(--success);
  padding: 20px;
  color: white;
  font-weight: 600;
  font-size: 1.1rem;
}

.chat-header::after {
  content: 'Powered by SimplyPost';
  display: block;
  font-size: 0.75rem;
  opacity: 0.8;
  margin-top: 5px;
}

.chat-messages {
  padding: 25px;
  min-height: 400px;
  max-height: 500px;
  overflow-y: auto;
  background: #0d1418 url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="whatsapp-bg" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23ffffff" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23whatsapp-bg)"/></svg>');
}

.chat-message {
  margin-bottom: 15px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-bot {
  background: rgba(255, 255, 255, 0.1);
  padding: 12px 18px;
  border-radius: 18px 18px 18px 4px;
  display: inline-block;
  max-width: 85%;
}

.message-user {
  background: var(--success);
  padding: 12px 18px;
  border-radius: 18px 18px 4px 18px;
  display: inline-block;
  max-width: 85%;
  float: right;
  clear: both;
}

.message-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.message-btn {
  background: rgba(45, 143, 71, 0.2);
  border: 1px solid var(--success);
  color: white;
  padding: 10px 20px;
  border-radius: 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 0.95rem;
}

.message-btn:hover {
  background: var(--success);
}

/* ==========================================================================
   5b. Demo Selector (Hero)
   ========================================================================== */
.demo-selector {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 15px;
  flex-wrap: wrap;
}

.demo-selector-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 8px 18px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  min-height: 44px;
  min-width: 44px;
}

.demo-selector-btn:hover {
  color: white;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.05);
}

.demo-selector-btn.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.demo-selector-btn.active:hover {
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.demo-selector-btn i {
  font-size: 0.95rem;
}

/* ==========================================================================
   6. Bento Grid Features
   ========================================================================== */
.bento-section {
  padding: 100px 0;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.bento-item {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 30px;
  padding: 40px;
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}

.bento-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s;
}

.bento-item:hover::before {
  opacity: 1;
}

.bento-item:hover {
  transform: translateY(-10px);
  border-color: rgba(255, 107, 53, 0.3);
}

.bento-large {
  grid-column: span 8;
}

.bento-small {
  grid-column: span 4;
}

.bento-medium {
  grid-column: span 6;
}

.bento-full {
  grid-column: span 12;
}

.bento-icon {
  width: 70px;
  height: 70px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 25px;
  font-size: 2rem;
}

.bento-icon-orange {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.bento-icon-navy {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
}

.bento-icon-green {
  background: linear-gradient(135deg, var(--success) 0%, var(--accent) 100%);
}

/* Default icon gradient (orange) */
.bento-icon {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.bento-item h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.bento-item p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.1rem;
  line-height: 1.6;
}

/* ==========================================================================
   7. How It Works
   ========================================================================== */
.how-it-works-section {
  padding: 100px 0;
  background: rgba(0, 0, 0, 0.2);
}

.how-it-works-section .section-title {
  text-align: center;
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 60px;
}

.step-card {
  text-align: center;
  padding: 40px 25px;
  position: relative;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 20px;
}

.step-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 15px;
}

.step-card h4 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1rem;
  line-height: 1.5;
}

/* Connector line between steps (desktop) */
.step-connector {
  position: absolute;
  top: 70px;
  right: -50%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0.3;
}

/* ==========================================================================
   8. Industry Modules
   ========================================================================== */
.industries-section {
  padding: 100px 0;
}

.industries-section .section-title {
  text-align: center;
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 60px;
}

.industry-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 30px;
  text-align: center;
  transition: all 0.3s;
}

.industry-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.industry-card .industry-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-size: 1.5rem;
}

.industry-card h5 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.industry-card p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* ==========================================================================
   9. Stats Section
   ========================================================================== */
.stats-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
  position: relative;
}

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

.stat-number {
  font-size: 4rem;
  font-weight: 700;
}

.stat-label {
  font-size: 1.2rem;
  opacity: 0.9;
}

/* ==========================================================================
   10. Pricing
   ========================================================================== */
.pricing-section {
  padding: 100px 0;
}

.pricing-section .section-title {
  text-align: center;
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.pricing-section .section-subtitle {
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.1rem;
  margin-bottom: 60px;
}

.pricing-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 25px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.3s;
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 107, 53, 0.3);
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 0 40px rgba(255, 107, 53, 0.15);
}

.pricing-card.popular::before {
  content: 'Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 4px 20px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.pricing-card h4 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.pricing-card .price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
}

.pricing-card .price span {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 400;
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
  text-align: left;
}

.pricing-card ul li {
  padding: 8px 0;
  color: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-card ul li i {
  color: var(--success);
  margin-right: 10px;
}

/* ==========================================================================
   11. Testimonials
   ========================================================================== */
.testimonials-section {
  padding: 100px 0;
  background: rgba(0, 0, 0, 0.2);
}

.testimonials-section .section-title {
  text-align: center;
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 60px;
}

.testimonial-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 30px;
  transition: all 0.3s;
}

.testimonial-card:hover {
  border-color: rgba(255, 107, 53, 0.2);
}

.testimonial-card .quote {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-card .quote::before {
  content: '\201C';
  font-size: 2rem;
  color: var(--primary);
  line-height: 0;
  vertical-align: -0.4em;
  margin-right: 4px;
}

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

.testimonial-card .author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.testimonial-card .author-name {
  font-weight: 600;
  font-size: 1rem;
}

.testimonial-card .author-business {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   12. CTA Section
   ========================================================================== */
.cta-section {
  padding: 120px 0;
  text-align: center;
}

.cta-box {
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(0, 78, 137, 0.05) 100%);
  border: 1px solid rgba(255, 107, 53, 0.2);
  border-radius: 40px;
  padding: 80px 40px;
  max-width: 900px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.cta-box p {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 40px;
}

/* ==========================================================================
   13. Footer
   ========================================================================== */
footer {
  background: #050505;
  padding: 60px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

footer h5 {
  color: var(--primary);
  margin-bottom: 20px;
}

footer a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color 0.3s;
}

footer a:hover {
  color: var(--primary);
}

footer .footer-divider {
  border-color: rgba(255, 255, 255, 0.05);
  margin: 40px 0 20px;
}

footer .footer-bottom {
  color: rgba(255, 255, 255, 0.4);
}

footer .footer-badge {
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(0, 78, 137, 0.1) 100%);
  border: 1px solid rgba(255, 107, 53, 0.2);
  border-radius: 15px;
  padding: 20px;
  display: inline-block;
}

footer .footer-badge .copyright {
  color: rgba(255, 255, 255, 0.6);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

footer .footer-badge .company {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 0;
}

footer .footer-contact {
  color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   14. Animations & Intersection Observer
   ========================================================================== */

/* Scroll-triggered animation base class */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays for child elements */
.animate-on-scroll:nth-child(2) {
  transition-delay: 0.1s;
}

.animate-on-scroll:nth-child(3) {
  transition-delay: 0.2s;
}

.animate-on-scroll:nth-child(4) {
  transition-delay: 0.3s;
}

.animate-on-scroll:nth-child(5) {
  transition-delay: 0.4s;
}

.animate-on-scroll:nth-child(6) {
  transition-delay: 0.5s;
}

/* Hero content animations */
.hero-content {
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ==========================================================================
   15. Responsive Breakpoints (576px, 768px, 992px, 1200px)
   ========================================================================== */

/* Extra-large devices (≤1200px) */
@media (max-width: 1200px) {
  .hero h1 {
    font-size: 4rem;
  }

  .cta-box h2 {
    font-size: 2.5rem;
  }
}

/* Large devices / Tablets landscape (≤992px) */
@media (max-width: 992px) {
  .hero h1 {
    font-size: 3.5rem;
  }

  .bento-large {
    grid-column: span 6;
  }

  .bento-small {
    grid-column: span 6;
  }

  .bento-medium {
    grid-column: span 6;
  }

  /* How It Works: hide connector lines */
  .step-connector {
    display: none;
  }

  /* Industry cards: 2-col handled by Bootstrap grid */
}

/* Medium devices / Tablets portrait (≤768px) */
@media (max-width: 768px) {
  .hero {
    padding-top: 80px;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .hero p {
    font-size: 1.2rem;
  }

  .hero-buttons {
    justify-content: center;
  }

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

  /* Demo Selector: ensure adequate tap targets */
  .demo-selector-btn {
    min-height: 44px;
    min-width: 44px;
    padding: 8px 14px;
    font-size: 0.85rem;
  }

  /* Bento grid: full-width on mobile */
  .bento-large,
  .bento-small,
  .bento-medium,
  .bento-full {
    grid-column: span 12;
  }

  .bento-section {
    padding: 60px 0;
  }

  /* Stats */
  .stat-number {
    font-size: 3rem;
  }

  /* CTA */
  .cta-box {
    padding: 50px 25px;
  }

  .cta-box h2 {
    font-size: 2rem;
  }

  /* Section titles */
  .how-it-works-section .section-title,
  .industries-section .section-title,
  .pricing-section .section-title,
  .testimonials-section .section-title {
    font-size: 2.2rem;
  }

  /* Pricing cards stack */
  .pricing-card {
    margin-bottom: 20px;
  }

  /* Testimonials: enable horizontal scroll-snap */
  .testimonials-scroll {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 20px;
    padding-bottom: 15px;
    -webkit-overflow-scrolling: touch;
  }

  .testimonials-scroll .testimonial-card {
    min-width: 280px;
    scroll-snap-align: start;
    flex-shrink: 0;
  }
}

/* Small devices / Phones (≤576px) */
@media (max-width: 576px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .btn-primary-custom,
  .btn-secondary-custom {
    padding: 14px 30px;
    font-size: 1rem;
  }

  .bento-item {
    padding: 25px;
  }

  .bento-item h3 {
    font-size: 1.4rem;
  }

  .stat-number {
    font-size: 2.5rem;
  }

  .cta-box h2 {
    font-size: 1.6rem;
  }

  .cta-box p {
    font-size: 1rem;
  }

  /* Industry cards: single column handled by Bootstrap (no col-sm-6 below 576px) */
  .industry-card {
    margin-bottom: 15px;
  }

  /* Chat demo: constrain width */
  .chat-demo {
    max-width: 100%;
  }

  /* Demo Selector: compact for small screens */
  .demo-selector {
    gap: 8px;
  }

  .demo-selector-btn {
    padding: 8px 12px;
    font-size: 0.8rem;
    min-height: 44px;
    min-width: 44px;
  }

  .chat-messages {
    min-height: 300px;
    max-height: 400px;
  }

  /* Hero buttons stack vertically */
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
}