:root {
  --body-bg-color: #e5e6e6;
  --body-text-color: #222222;
  --heading-color: #31727e;
  --hero-gradient1: #66c1ea;
  --hero-gradient2: #4b63a2;
  --footer-bg-color: #21474f;
  --link-color: #2b9eb3;
  --header-bg-color: #ffffff;
  --font-family: system-ui;
  --nav-link-color: #141414;
  --footer-text-color: #ffffff;
  --header-text-color: #ffffffff;
}

body {
  background-color: var(--body-bg-color) !important;
  color: var(--body-text-color) !important;
  font-family: var(--font-family);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
h1 {
  font-size: clamp(2rem, 4vw, 2.5rem) !important;
}
h2 {
  font-size: clamp(1.6rem, 3vw, 2rem) !important;
}
h3 {
  font-size: clamp(1.4rem, 3vw, 1.7rem) !important;
}
p {
  margin-bottom: 0.5rem !important;
}

section {
  padding: 15px 0;
  scroll-margin-top: 70px;
}

h2,
h3 {
  color: var(--heading-color) !important;
}

.content-area a {
  color: var(--link-color) !important;
  text-decoration: none !important;
}

.content-area a:hover {
  color: var(--link-color) !important;
  opacity: 0.8;
}

.sidebar-page-list {
  padding: 0;
  margin: 0;
  margin-bottom: 17px;
  width: 279px;
}

.sidebar-page-list li {
  list-style-type: disc;
  list-style-position: inside;
  color: var(--heading-color);
}

.sidebar-page-list li::marker {
  color: var(--link-color);
  font-size: 1.2em;
}
.sidebar-page-list li:last-child {
  border-bottom: none;
}

.sidebar-page-list li a {
  padding: 12px 0;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  color: var(--link-color);
}

.sidebar-page-list li a:hover {
  padding-left: 11px;
}

.error_page {
  min-height: 70vh;
}

.footer {
  background-color: var(--footer-bg-color);
  color: var(--footer-text-color);
}

.footer a {
  text-decoration: none;
  color: var(--link-color) !important;
}

.navbar {
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  background-color: var(--header-bg-color) !important;
  position: sticky;
  top: 0;
  z-index: 1020;
}

.hero-section {
  padding: 55px 0;
  position: relative;
  overflow: hidden;
  color: var(--header-text-color);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.246);
}

.hero-section.with-bg {
  background-image: url("/images/role-of-real-time-analytics.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-section.with-bg::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgb(0, 0, 0));
  opacity: 0.5;
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

@media (max-width: 768px) {
  .hero-section {
    padding: 60px 0;
  }
}
.navbar-light .navbar-nav .nav-link {
  color: var(--nav-link-color, #141414) !important;
  font-weight: 500;
  padding: 0 1rem;
  transition: color 0.3s ease, transform 0.2s ease;
}
.navbar-light .navbar-nav .nav-link:hover {
  color: var(--link-color) !important;
  transform: translateY(-1px);
}
.navbar-light .navbar-nav .nav-link.active {
  color: var(--link-color) !important;
  font-weight: 600;
  border-bottom: 2px solid var(--link-color);
}

/* Mobile nav */
@media (max-width: 1199.98px) {
  .navbar-collapse {
    position: fixed;
    top: 61px;
    left: 15px;
    right: 15px;
    background-color: color-mix(
      in srgb,
      var(--header-bg-color) 65%,
      transparent
    );
    backdrop-filter: blur(12px);
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    padding: 15px;
    margin: 0;
  }

  .navbar-nav {
    width: 100%;
  }

  .navbar-nav .nav-item {
    margin: 7px 0;
  }

  .navbar-nav .nav-item:hover {
    transform: translateY(-1px);
  }

  .navbar-nav .nav-link {
    font-size: 1.2rem;
    font-weight: 500;
    text-decoration: none;
    display: block;
    padding: 0;
  }

  .navbar-toggler {
    z-index: 10000;
    position: relative;
    border: var(--bs-border-width) solid var(--nav-link-color, #141414) !important;
  }
}

@media screen and (min-width: 1199.98px) {
  .dropdown-menu {
    top: 100%;
    left: 50% !important;
    transform: translateX(-50%);
  }
}

.navbar .dropdown-toggle::after {
  transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle::after {
  transform: rotate(180deg);
}

.custom-dropdown {
  border: 0;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  border-radius: 12px;
  padding: 0.5rem 0;
  margin-top: 0.5rem;
  min-width: 220px;
  background: color-mix(
    in srgb,
    var(--header-bg-color) 65%,
    transparent
  ) !important;
  backdrop-filter: blur(12px);
}

.custom-dropdown .dropdown-item {
  padding: 0.75rem 1.5rem;
  transition: all 0.3s ease;
  color: var(--nav-link-color, #141414) !important;
  font-weight: 500;
  border-radius: 0;
  text-wrap: wrap;
}

.custom-dropdown .dropdown-item:hover {
  color: #fff;
  background: color-mix(
    in srgb,
    var(--header-bg-color) 95%,
    transparent
  ) !important;
}

.custom-dropdown .dropdown-item i {
  width: 16px;
  color: #6c757d;
  transition: color 0.3s ease;
}

.custom-dropdown .dropdown-item:hover i {
  color: #fff;
}

.dropdown-menu {
  opacity: 0;
  transition: all 0.3s ease;
  display: block;
  visibility: hidden;
}

.dropdown-menu.show {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

@media (min-width: 1199.98px) {
  .custom-dropdown {
    max-width: 200px;
  }
}

@media (max-width: 1199.98px) {
  .custom-dropdown {
    display: none;
    background: #f8f9fa;
    box-shadow: none;
    border-radius: 0;
    margin-top: 0;
    border-top: 1px solid #dee2e6;
  }

  .custom-dropdown .dropdown-item:hover {
    margin: 0;
    border-radius: 0;
    transform: none;
  }
}

.dropdown-menu:hover,
.dropdown:hover .dropdown-menu {
  display: block !important;
  visibility: visible;
  opacity: 1;
}
.dropdown-item.active,
.dropdown-item:active {
  color: #fff;
  text-decoration: none;
  background-color: #91919131 !important;
}
.box {
  background: #fff;
  border: 1px solid #dee2e6;
  border-radius: 12px;
  padding: 21px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  height: 100%;
}
.heading h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.2rem) !important;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}
.heading h2::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--hero-gradient1), var(--link-color));
  border-radius: 2px;
}
.heading p {
  line-height: 1.7;
  margin: 0 auto 1rem;
  color: var(--body-text-color);
  font-weight: 400;
}
@media (max-width: 768px) {
  .heading h2::after {
    width: 60px;
    height: 2px;
    bottom: -6px;
  }
  .heading p {
    line-height: 1.6;
  }
}
.cust-bg {
  background-color: #f9f9f9; /* light background for contrast */
  border-left: 5px solid #31727e; /* accent border */
  padding: 2rem 1.5rem; /* generous padding */
  border-radius: 8px; /* rounded corners for a modern feel */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05); /* subtle shadow */
  margin: 2rem auto; /* center on page */
  font-family: 'Inter', sans-serif; /* clean modern font */
  line-height: 1.6;
}

.cust-bg h2 {
  color: #31727e;
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cust-bg h3 {
  color: #20555b; /* slightly darker shade of accent for hierarchy */
  font-size: 1.25rem;
}

.cust-bg p {
  color: #333;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.cust-bg p:last-child {
  margin-bottom: 0;
}
.page-404-container {
  background-color: #fefefe;
  padding: 4rem 2rem;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  max-width: 700px;
  margin: 5rem auto;
  text-align: center;
  font-family: 'Inter', sans-serif;
}

.page-404-icon .bi-emoji-frown-fill {
  color: #31727e;
  font-size: 3rem;
  transition: transform 0.3s ease, color 0.3s ease;
}

.page-404-icon .bi-emoji-frown-fill:hover {
  transform: scale(1.2) rotate(-10deg);
  color: #20555b;
}

.page-404-title {
  color: #31727e;
  font-size: 5rem;
}

.page-404-subtitle {
  color: #20555b;
  font-weight: 500;
  margin-bottom: 1rem;
}

.page-404-text {
  color: #555;
  font-size: 1.125rem;
}

.page-404-btn-home {
  border-color: #31727e;
  color: #31727e;
  transition: all 0.3s ease;
}

.page-404-btn-home:hover {
  background-color: #31727e;
  color: #fff;
}

.page-404-btn-back {
  border-color: #6c757d;
  color: #6c757d;
  transition: all 0.3s ease;
}

.page-404-btn-back:hover {
  background-color: #6c757d;
  color: #fff;
}

.page-404-stars .bi-stars {
  color: #f5c518;
  animation: page-404-twinkle 2s infinite alternate;
}

.page-404-stars .bi-stars:nth-child(2) {
  animation-delay: 0.3s;
}

.page-404-stars .bi-stars:nth-child(3) {
  animation-delay: 0.6s;
}

@keyframes page-404-twinkle {
  0% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(1); opacity: 0.8; }
}
.footer {
  background-color: #f8f9fa; /* light background */
  border-top: 2px solid #31727e; /* accent top border for style */
  padding: 2rem 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: #555;
  position: relative;
  z-index: 10;
}

.footer p,
.footer span,
.footer a {
  margin: 0;
  color: #555;
  transition: color 0.3s ease;
}

.footer a {
  color: #31727e;
  text-decoration: none;
  font-weight: 500;
  margin-left: 0.5rem;
}

.footer a:hover {
  color: #20555b; /* darker accent on hover */
  text-decoration: underline;
}

.footer .col-md-6 {
  margin-bottom: 0.5rem;
}

.footer .d-flex span {
  margin-bottom: 0.25rem;
}

.footer .d-flex a {
  margin-left: 1rem;
}

@media (max-width: 768px) {
  .footer .d-flex {
    flex-direction: column;
    gap: 0.5rem;
  }
}
.rounded {
  border-radius: 21px !important;
}