:root{
  --bg-color: #f2f7fd;
  --text-color: #111827;
}
* {
  margin:0; 
  padding:0; 
  box-sizing:border-box;
}
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.6;
  transition: all 0.3s ease;
}
.dark-theme{
  --bg-color: #121212;
  --text-color: #f0f0f0;
}
svg{
  color: #4F46E5;
}
li{
  list-style: none;
}
a{
  text-decoration: none;
}
a:hover{
  color: #4F46E5;
}
.flex{
  display: flex;
  align-items: center;
  gap: .5rem;
}

/* Navbar */
.navbar {
  justify-content:space-between; 
  gap: 0;
  padding:1rem 2rem; 
  background:#fff; 
  position:fixed; 
  top:0; 
  left: 0;
  right: 0;
  z-index:100;
  border-bottom:1px solid #e5e7eb;
  /* box-shadow:0 2px 6px rgba(0,0,0,.1); */
}
.logo svg{
  width: 2rem;
  height: 2rem;
}
.logo span{
  font-size: 1.3rem; 
  font-weight:700; 
}
.nav-links {
  gap: 2rem;
}
.nav-links a {
  color:#374151; 
  transition: color .2s ease-in-out;
}
.nav-links a:hover {
  color:#4F46E5;
}
button{
  border-radius: 6px;
  cursor:pointer; 
  border: none;
  transition: all .2s ease-in-out;
}
.menu-toggle {
  display:none; 
  font-size:1.5rem; 
  color:#4F46E5;
}
.nav-btn{
  color: #374151;
  background-color: #f2f7fd;
  padding: .7rem 1rem;
}
.nav-btn svg{
  width: 1rem;
  height: 1rem;
  color: inherit;
}
.nav-btn span{
  font-size: 1rem;
}
.btn {
  padding:.7rem 1.5rem; 
  font-weight:600;
}
.btn.primary {
  background:#4F46E5; 
  color:#fff;
}
.btn.primary:hover {
  background:#6366F1;
}

/* Hero */
.hero {
  padding: 2rem; 
  background:#fff;
}
.hero-content {
  gap: 2rem; 
}
.hero-text {
  position: relative;
  flex:1; 
  top: 3%;
  left: 5%;
  max-width:600px;
  background-color: #fff;
}
.hero-text h1 {
  font-size: 2.7rem; 
}
.hero-text .highlight {
  color:#4F46E5;
}
.hero-text p {
  color:#6B7280;
}
.hero-img{
  margin-top: 2rem;
}
.hero-img img {
  max-width:100%;
  height: 100%;
  object-fit: cover; 
}
.hero-buttons {
  width: 32rem;
  gap:1rem;
  margin-top: 1.5rem;
}
.hero-btn{
  padding-block: 1rem;
}
.hero-btn-text{
  margin-right: .5rem;
}
.btn.secondary {
  background-color:#b1caf1;
  color:#4F46E5;
}
.btn.secondary:hover {
  background:#E5E7EB;
}

/* Services */
.services {
  display:grid; 
  grid-template-columns:repeat(auto-fit,minmax(120px, 1fr));
  gap:1.5rem; 
  padding:4rem 3rem 4rem 2rem;
  background:#F9FAFB;
}
.service-card {
  background:#fff; 
  padding:2rem; 
  border-radius:12px;
  box-shadow:0 3px 6px rgba(0, 0, 0, 0.1);
  text-align:center; 
  transition: all .3s ease-in-out;
}
.service-card:hover 
{transform:translateY(-5px);
}
.service-card div > img,
.chat-container img{
  color: #4F46E5;
  width: 3rem;
  height: 3rem;
}
.service-card h3 {
  margin:1rem 0 .5rem; 
  color:#111827;
}
.service-card p {
  color:#6B7280; 
  font-size:.95rem;
}

/* Chatbot */
.chatbot {
  padding:4rem 3rem 4rem 2rem; 
  text-align:center; 
  background:#fff;
}
.chatbot h2 {
  font-size:2rem; 
  margin-bottom:.5rem;
}
.chatbot p {
  color:#4d5158;
  margin-top: .5rem;
}
.chatbot-grid {
  display:grid; 
  grid-template-columns:repeat(auto-fit, minmax(200px, .5fr)); 
  gap: 2rem; 
  margin-top:2.5rem;
}
.chatbox {
  /* width: 80%; */
  margin-block: 2.5rem;
  background:#fff; 
  padding: 1.5rem 0 1rem; 
  border-radius:12px; 
  box-shadow:0 8px 10px rgba(0,0,0,0.1);
}
.mar-left{
  margin-inline: 2rem;
  text-align:left;
}
.mar-left:first-child{
  justify-content: space-between;
}
.chatbox .chat-text{
  display: inline-block;
  padding: .5rem;
  background-color: #f2f7fd;
  border-radius: 4px;
}
.chat-circles{
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.chat-circles.red{
  background-color: red;
}
.chat-circles.orange{
  background-color: orange;
}
.chat-circles.green{
  background-color: rgb(78, 199, 78);
}
.user{
  text-align:right;
  margin-right: 2rem;
}
.chatbox .bubble-user {
  background:#4F46E5; 
  color:#fff; 
  padding:.6rem 1rem;
  border-radius: 4px; 
  display:inline-block; 
  text-align: right;
}
.user-circle{
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: #ccc; 
  margin-left: .5rem;
}
.features {
  display:grid; 
  grid-template-columns:repeat(2, 1fr); 
  gap:1rem;
}
.feature-card {
  /* width: 80%; */
  background-color: #f2f7fd; 
  padding: 1.5rem 0; 
  border-radius: 6px;
  text-align:center;
}
.feature-card h3 {
  margin:.6rem 0;
  color:#111827;
  }
.feature-card p {
  font-size:.9rem; 
  color:#6B7280;
}

/* CTA */
.cta {
  background-color: #fff;
  padding: 4rem 3rem 4rem 2rem;
  text-align:center;
}
.cta h2 {
  font-size: 1.6rem;
  text-transform: capitalize;
}
.platforms {
  gap: 1.8rem; 
  flex-wrap: wrap; 
  margin-top:1.5rem;
}
.platforms .flex{
  width: 18rem;
  height: 16rem;
  flex-direction: column;
  background-color:#f2f7fd; 
  border-radius:8px;
  font-weight:500;
}
.platforms img{
  width: 3rem;
  height: 3rem;
  margin-top: 2rem;
}

/* Contact */
.contact {
  padding:2rem 2rem;
  height: 35rem; 
  background:#fff;
}
.contact h2 {
  font-size:2rem;
  margin-bottom:.5rem; 
  text-align:center;
}
.contact-text {
  color:#6B7280; 
  text-align:center;
}
.contact-grid {
  display:grid; 
  grid-template-columns: repeat(2, 1fr); 
  gap:2rem; 
  margin-top:2rem;
}
.contact-form,
.contact-info{
  padding: 1rem 1.5rem;
  background-color: #fff;
  border-radius: 6px;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}
.contact-form label{
  width: 100%;
  display: inline-block;
  font-weight: 600;
}
.contact-form .flex{
  justify-content: space-between;
  gap: 0;
}
.error-msg{
  display: none;
  text-wrap: nowrap;
  color: red;
}
.contact-form input, 
.contact-form textarea {
  width:100%; 
  padding:.5rem; 
  margin-bottom: .25rem;
  border:1px solid #d1d5db; 
  border-radius:8px; 
  font-size:1rem;
  cursor: pointer;
}
.contact-form input:focus, 
.contact-form textarea:focus {
  outline:none; 
  border-color:#4F46E5; 
  box-shadow:0 0 0 2px rgba(79,70,229,.2);
}
.contact-form .btn{
  width: 100%;
}
.contact-info{
  background-color: #f2f7fd; 
  box-shadow: none;
}
.contact-info > div{
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}
.contact-info-icon{
  background-color: #b1caf1;
  padding: .5rem;
  border-radius: 2px;
}
.contact-content{
  text-align: left;
  margin-bottom:.25rem; 
  color:#374151; 
  font-size:.95rem;
}

/* Footer */
.footer {
  background: #fff; 
  padding:3rem 2rem;
}
.footer-grid {
  display:grid; 
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:2rem;
  padding-bottom: 1rem;
}
.footer h4 {
  margin-bottom:.8rem; 
  font-weight: 600;
}
.footer ul {
  list-style:none;
}
.footer ul li {
  margin-bottom:.4rem; 
  font-size:.9rem;
}
.footer ul li:hover {
  cursor:pointer;
  /* color: #6366F1; */
}
.footer p {
  font-size:.85rem; 
  text-align:left; 
}
.footer-flex{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 1rem 0;
}
.footer-lower-list{
  display: flex;
  align-items: center;
  gap: 1rem;
}
.footer-lower-list a{
  color: inherit;
  text-decoration: none;
}
.chat-container #chat-icon{
  position: fixed;
  bottom: 1rem;
  right: 3rem;
  padding: .5rem;
  border-radius: .5rem;
  z-index: 1000;
  animation: bounce 1.5s infinite;
}
#chat-icon:hover{
  background-color: #4F46E5;
}
@keyframes bounce {
  0%, 100%{
    transform: translateY(0);
  }
  50%{
    transform: translateY(-10px);
  }
}

/* Responsive */
@media (max-width:768px) {
  .nav-links {
    display:none; 
    flex-direction:column; 
    align-items: center;
    position: fixed; 
    top: 0;
    left: 50%;
    width: 100%;
    background: inherit; 
    padding-block: 3rem 2rem; 
    box-shadow:0 2px 6px rgba(0,0,0,.1);
    transition: transform 0.3s ease-in-out;
  }
  .nav-links.active {
    display:flex;
    transform: translateX(-50%);
  }
  .menu-toggle {
    display:block;
    cursor: pointer;
  }
  .close-menu{
    position: absolute;
    top: 10px;
    right: 20px;
    padding: .5rem;
  }
  .hero{
    padding-inline: 1rem;
  }
  .hero-content{
    flex-direction: column;
  }
  .hero-buttons{
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .hero-text{
    width: 100%;
    left: 0;
    background-color: transparent;
  }
  .services{
    gap: 1rem;
  }
  .service-card{
    padding: 1rem;
    text-align: left;
  }
  .services,
  .chatbot,
  .cta,
  .contact{
    padding: 2rem 1rem;
  }
  .chatbox{
    margin-block: 0;
  }
  .platforms{
    padding: 0;
    gap: 1.5rem;
  }
  .platforms div{
    width: 14rem;
    /* height: 6rem; */
  }
  .contact,
  .contact-grid{
    height: 100%;
  }
  .services,
  .footer-grid,
  .chatbot-grid,
  .contact-grid{
    grid-template-columns: 1fr;
  }
  .footer-flex{
    flex-direction: column;
    justify-content: center;
  }
}