body {
  font-family: 'Inter', Arial, sans-serif;
  background: #fafbfc;
  color: #111827;
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

* {
  box-sizing: border-box;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container, #chat-container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding-left: 10px;
  padding-right: 10px;
  box-sizing: border-box;
}

nav {
  background: transparent !important;
  box-shadow: none !important;
  width: 100vw;
  display: flex;
  gap: 24px;
  padding: 14px 40px;
  position: sticky;
  top: 0;
  z-index: 100;
    align-items: center;
  }

  nav a {
  color: #243949 !important;
  text-decoration: none;
  font-weight: 700;
  display: flex;
    align-items: center;
  }

nav a.active {
  color: inherit;
  border-bottom: 2px solid #243949 !important;
  padding-bottom: 0;
  font-weight: 700;
  }

nav a img {
  height: 32px;
  margin-right: 12px;
  display: inline-block;
  vertical-align: middle;
  }

nav a:hover {
  color: #14532d !important;
  text-decoration: underline;
  }

nav a:focus {
  outline: 2px solid #39b3a6;
  outline-offset: 2px;
  }

  main {
  margin: 0 auto;
  max-width: 880px;
  padding: 40px 18px;
  }

.hero {
  text-align: center;
  margin-top: 40px;
  }
.hero h1 {
  font-size: 2.5rem;
  margin: 25px 0 10px 0;
  font-weight: 700;
  }
.hero p {
  color: #374151;
  font-size: 1.2rem;
  }
.hero-img {
  animation: float 5s ease-in-out infinite;
  display: block;
  margin: 0 auto 16px auto;
}
@keyframes float {
  0%, 100% { transform: translateY(0);}
  50% { transform: translateY(-12px);}
}
  .cta-button {
  display: inline-block;
  background: #39b3a6;
  color: #fff;
  font-weight: 700;
  margin: 22px auto 0 auto;
  padding: 12px 32px;
  font-size: 1.05rem;
  border-radius: 7px;
  box-shadow: 0 4px 16px #eaf9f6;
  text-decoration: none;
  transition: background 0.18s;
  }
.cta-button:hover {
  background: #259a83;
  }
.features, .services, .about, .contact {
  margin-top: 48px;
  background: #f9fafb;
  border-radius: 15px;
  box-shadow: 0 2px 8px #d1d5db;
  padding: 32px 24px;
  }
.features ul, .service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 40px;
  justify-content: center;
  margin: 0;
  padding: 0;
}
.features li {
  list-style: none;
  color: #14532d;
  padding-left: 1.3em;
  position: relative;
  margin-bottom: 10px;
}
.features li::before {
  content: "✔";
  color: #35baa6;
  position: absolute;
  left: 0;
}
.feature-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  margin-top: 26px;
  gap: 18px 14px;
}
.feature-list div {
  text-align: center;
  flex: 1 1 156px;
  min-width: 110px;
}
.feature-list img {
  margin-bottom: 4px;
  height: 44px;
}
.feature-list p {
  margin: 0;
  color: #405862;
  font-size: 1rem;
}
.service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 34px 32px;
  margin-top: 30px;
}
.service-item {
  flex: 1 1 220px;
  min-width: 180px;
  max-width: 220px;
  background: #fafbfc;
  border-radius: 12px;
  text-align: center;
  padding: 18px 10px;
  box-shadow: 0 1px 4px #f1f1f1;
}
.service-item h2 {
  font-size: 1.18rem;
  margin: 12px 0 8px 0;
}
.service-item p {
  color: #4b5563;
  font-size: 0.98rem;
}
.about {
  text-align: center;
}
.about img {
  display: block;
  margin: 10px auto 22px auto;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 400px;
  margin-bottom: 24px;
  }
.contact-form input, .contact-form textarea {
  padding: 7px 12px;
  font-size: 1rem;
  border: 1px solid #b2dfdb;
  border-radius: 6px;
  resize: vertical;
  }
.contact-form button {
  background: #39b3a6;
  color: #fff;
  font-weight: 700;
  padding: 10px 0;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 7px;
  transition: background 0.2s;
}
.contact-form button:hover {
  background: #259a83;
}
/* Update disabled button color for better contrast */
.contact-form button:disabled {
  background-color: #565e62;
  cursor: not-allowed;
  color: #e0e0e0;
}
.contact-svg {
  text-align: center;
  margin-top: 8px;
}

/* Flash Messages Styling */
.flash-messages {
  max-width: 650px;
  margin: 0 auto 24px auto;
  padding: 0 15px;
  }
.alert {
  padding: 15px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 16px;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
}
.alert-success {
  background-color: #d4edda;
  border: 1px solid #c3e6cb;
  color: #155724;
}
.alert-danger {
  background-color: #f8d7da;
  border: 1px solid #f5c6cb;
  color: #721c24;
}

.flashes {
  list-style: none;
  padding: 0;
  text-align: center;
  }
.flash {
  display: inline-block;
  margin: 1.5em 0 .7em 0;
  padding: 0.7em 1.4em;
  border-radius: 6px;
  font-size: 1.1em;
  }
.flash.success {
  background: #d6f5e4;
  color: #207a58;
  }
.flash.danger {
  background: #ffdbde;
  color: #d52544;
}
/* Solutions Section Added */
.solutions-intro {
  color: #555;
  margin: 0 auto 22px auto;
  max-width: 700px;
  text-align: center;
  font-size: 1.09rem;
}
.solution-cards {
  display: flex;
    flex-wrap: wrap;
  gap: 28px 22px;
  justify-content: center;
  }
.solution-card {
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 2px 8px #eaeaea;
  padding: 28px 16px 20px 16px;
  max-width: 250px;
  min-width: 170px;
  flex: 1 1 220px;
  text-align: center;
  transition: box-shadow 0.18s;
  }

/* --- ESTIMATION PAGE REDESIGN STYLES (REPLACEMENT STARTS HERE) --- */
.estimation-section {
  max-width: 1100px;
  margin: 60px auto;
  padding: 40px 36px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  }
.estimation-section h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 12px;
  text-align: center;
  color: #243949;
  }
.estimation-intro {
  max-width: 650px;
  margin: 0 auto 30px auto;
  font-size: 1.25rem;
  color: #4b5760;
  text-align: center;
  }
.estimation-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 650px;
  margin: 0 auto;
}
.estimation-form label {
  font-weight: 700;
  font-size: 1.1rem;
  color: #243949;
}
.estimation-form input[type="text"], .estimation-form input[type="email"], .estimation-form input[type="tel"], .estimation-form textarea, .estimation-form input[type="file"] {
  padding: 14px 18px;
  font-size: 1rem;
  border-radius: 8px;
  border: 1px solid #b0bec5;
  background-color: #f7fafc;
  resize: vertical;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.estimation-form input[type="text"]:focus, .estimation-form input[type="email"]:focus, .estimation-form input[type="tel"]:focus, .estimation-form textarea:focus, .estimation-form input[type="file"]:focus {
  border-color: #39b3a6;
  box-shadow: 0 0 5px rgba(57,179,166, 0.4);
  outline: none;
}
.estimation-form textarea {
  min-height: 150px;
}
.estimation-form button {
  align-self: center;
  padding: 14px 48px;
  font-size: 1.1rem;
  font-weight: 700;
  background-color: #39b3a6;
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.estimation-form button:hover {
  background-color: #2e8b78;
}
@media (max-width: 768px) {
  .estimation-section {
    padding: 30px 24px;
  }
  .estimation-form {
    max-width: 100%;
  }
  }
/* --- END ESTIMATION PAGE REDESIGN --- */
@media (min-width: 768px) {
  main {
    max-width: 95%;
    padding: 30px 12px;
  }
  }

@media (min-width: 1024px) {
  .estimation-section {
    max-width: 1100px;
}
}

/* Chat styles additions */
#chat-form button:hover, #end-chat-btn:hover {
  background-color: #1f6659;
}

#chat-container .message.user p {
  background-color: #2c8c7f;
  color: #ffffff;
}
#chat-container .message.bot p {
  background-color: #f3f6f7;
  color: #2f3a43;
}
#chat-form input:focus {
  outline: 3px solid #39b3a6;
  background-color: #e0f2ef;
  border-color: #39b3a6;
  box-shadow: 0 0 8px rgba(57,179,166, 0.6);
}
#menu-toggle:focus {
  outline: 3px solid #255c52;
  outline-offset: 2px;
}

@media (max-width: 900px) {
  nav {
    padding: 12px 20px;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
  }
  nav a {
    font-size: 0.95rem;
  }
  main {
    max-width: 95%;
    padding: 30px 12px;
  }
  .cta-button {
    padding: 10px 24px;
    font-size: 1rem;
  }
  .feature-list, .service-list, .solution-cards {
    flex-direction: column;
    gap: 20px 0;
  }
  .service-item {
    max-width: 100%;
    min-width: unset;
    margin: 0 auto 20px auto;
  }
}

@media (max-width: 600px) {
  .features ul, .service-list, .solution-cards { flex-direction: column; align-items: stretch; }
  .service-item { margin: 0 auto 18px auto; width: 95%; max-width: 320px; }
  main { padding: 18px 4vw; }
  .about img { width: 140px; }
  .feature-list { flex-direction: column; align-items: stretch; }
  .solution-card { max-width: 100%; min-width: 0; }
}

@media (max-width: 480px) {
  nav {
    gap: 12px;
    padding: 10px 12px;
    align-items: center;
  }
  nav a {
    font-size: 0.9rem;
  }
  main {
    padding: 24px 8px;
  }
  .cta-button {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
  .contact-form {
    max-width: 100%;
    padding: 0 12px;
  }
  .contact-form input, .contact-form textarea {
    font-size: 0.95rem;
  }
}

@media (max-width: 500px) {
  #chat-container {
    height: 60vh;
    min-width: 0;
    padding: 5px;
  }
  form, input[type="text"], button {
    font-size: 1em !important;
  }
}