:root {
  --body-bg-color: #f8fafc;
  --body-text-color: #222222;
  --heading-color: #000000;
  --hero-gradient1: #00ff9f;
  --hero-gradient2: #9d4edd;
  --footer-bg-color: #0d0d0d;
  --link-color: #38bdf8;
  --header-bg-color: #ffffff;
  --font-family: 'Book Antiqua', Palatino, serif;
  --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: 30px 0;
}


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;
}

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

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


.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;
}


.navbar {
  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);
}

.hero-section.gradient-bg {
  background: linear-gradient(135deg, var(--hero-gradient1), var(--hero-gradient2));
}

.hero-section.with-bg {
  background-image: url('/images/hero-bg.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;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

@media (max-width: 768px) {
  .hero-section {
    padding: 60px 0;
  }

}

.navbar-light .navbar-nav .nav-link {
  color: var(--nav-link-color, #141414) !important;
}

.navbar-light .navbar-nav .nav-link.active {
  color: var(--link-color) !important;
  font-weight: bold;
}

/* 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 .3s ease
}

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

.custom-dropdown {
  border: 0;
  box-shadow: 0 10px 40px rgba(0, 0, 0, .15);
  border-radius: 12px;
  padding: .5rem 0;
  margin-top: .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: .75rem 1.5rem;
  transition: all .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 .3s ease
}

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

.dropdown-menu {
  opacity: 0;
  transition: all .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;
}

.error-text {
  font-size: 8rem;
  font-weight: 900;
  text-transform: uppercase;
  background: linear-gradient(135deg,
      var(--hero-gradient1),
      var(--hero-gradient2),
      var(--link-color));
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  display: inline-block;
  letter-spacing: 0.1em;
  font-family: var(--font-family);
  animation: aurora-shift 6s ease-in-out infinite alternate;
  text-shadow: 0 0 20px rgba(0, 0, 0, 0.25);
}

h2 {
  text-align: center;
  font-weight: 700;
  text-transform: uppercase;
  background: linear-gradient(135deg,
      var(--hero-gradient1),
      var(--hero-gradient2),
      var(--link-color));
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  letter-spacing: 0.05em;
  font-family: var(--font-family);
  animation: aurora-shift 8s ease-in-out infinite alternate;
}

@keyframes aurora-shift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

.img-style {
  display: block;
  border-radius: 12px;
  /* optional rounding */

  /* Border that won't change the overall footprint */
  --ring: 5px;
  /* border thickness */
  margin: calc(-1 * var(--ring));
  /* cancels out the added border */
  border: var(--ring) solid transparent;
  box-sizing: content-box;
  /* keep image pixels intact */

  /* Animated auroral border using only your vars */
  background:
    linear-gradient(#0000 0 0) padding-box,
    /* keep image normal */
    conic-gradient(from var(--angle),
      var(--hero-gradient1),
      var(--hero-gradient2),
      var(--link-color),
      var(--hero-gradient1)) border-box;
  /* paints the border area */
  animation: aurora-angle 3s linear infinite;
}

/* Animate gradient start angle */
@property --angle {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

@keyframes aurora-angle {
  to {
    --angle: 360deg;
  }
}

.contact-section {
  max-width: 600px;
  margin: 3rem auto;
  padding: 2rem;
  background: #ffffff;
  border-radius: 1rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.contact-section h1 {
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--heading-color);
  font-family: var(--font-family);
}

.contact-form .form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
}

.contact-form label {
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--body-text-color);
}

.contact-form input,
.contact-form textarea {
  padding: 0.75rem 1rem;
  border: 2px solid #e0e0e0;
  border-radius: 0.75rem;
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--hero-gradient2);
  box-shadow: 0 0 8px rgba(0, 148, 30, 0.2);
  outline: none;
}

.btn-submit {
  display: inline-block;
  width: 100%;
  padding: 0.9rem 1.2rem;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  background: linear-gradient(135deg,
      var(--hero-gradient1),
      var(--hero-gradient2),
      var(--link-color));
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-submit:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 18px rgba(0, 148, 30, 0.25);
}