:root {
  --body-bg-color: #f8fafc;
  --body-text-color: #222222;
  --heading-color: #008bf5;
  --hero-gradient1: #00fbff;
  --hero-gradient2: #008bf5;
  --footer-bg-color: #0d0d0d;
  --link-color: #008bf5;
  --header-bg-color: #000000;
  --font-family: system-ui;
  --nav-link-color: #00fbff;
  --footer-text-color: #ffffff;
  --header-text-color: #ffffff;
  --wave-color: #00fbff;
  --sand: #fdd9a0;
  /* sandy beige */
  --sand2: #fce7b2;
  /* lighter sand */
  --sand-shadow: rgba(180, 140, 60, .35);
}

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;
  text-align: center;
}

h3 {
  font-size: clamp(1.4rem, 3vw, 1.7rem) !important;
}

p {
  margin-bottom: 0.5rem !important;
}

section {
  padding: 15px 0;
}

h2 {
  position: relative;
  padding-bottom: 0.6rem;
  margin: 0 0 30px 0;
  background: linear-gradient(135deg, var(--hero-gradient1), var(--hero-gradient2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 0 transparent;
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 14px;

  background-color: var(--wave-color);

  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='14' viewBox='0 0 80 14' preserveAspectRatio='none'><path d='M0 7 Q 10 0 20 7 T 40 7 T 60 7 T 80 7' fill='none' stroke='white' stroke-width='3' stroke-linecap='round'/></svg>");
  mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='14' viewBox='0 0 80 14' preserveAspectRatio='none'><path d='M0 7 Q 10 0 20 7 T 40 7 T 60 7 T 80 7' fill='none' stroke='white' stroke-width='3' stroke-linecap='round'/></svg>");
  -webkit-mask-repeat: repeat-x;
  mask-repeat: repeat-x;
  -webkit-mask-size: 80px 14px;
  mask-size: 80px 14px;
  -webkit-mask-position: 0 100%;
  mask-position: 0 100%;

  animation: wave-slide 6s linear infinite;
}

@keyframes wave-slide {
  from {
    -webkit-mask-position: 0 100%;
    mask-position: 0 100%;
  }

  to {
    -webkit-mask-position: -80px 100%;
    mask-position: -80px 100%;
  }
}

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.with-bg::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  /* tuck it flush at bottom */
  height: 40px;
  /* adjust wave height */
  background-color: #f8fafc;
  /* foam color */
  z-index: 2;
  /* sits above overlay, below content */

  -webkit-mask: url("data:image/svg+xml;utf8, <svg xmlns='http://www.w3.org/2000/svg' width='160' height='80' viewBox='0 0 160 80' preserveAspectRatio='none' > <path d='M0 40 Q 20 0 40 40 T 80 40 T 120 40 T 160 40 V80 H0 Z' fill='white' /> </svg>") repeat-x;
  mask: url("data:image/svg+xml;utf8, <svg xmlns='http://www.w3.org/2000/svg' width='160' height='80' viewBox='0 0 160 80' preserveAspectRatio='none' > <path d='M0 40 Q 20 0 40 40 T 80 40 T 120 40 T 160 40 V80 H0 Z' fill='white' /> </svg>") repeat-x;

  -webkit-mask-size: 160px 30px;
  mask-size: 160px 40px;
}

.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;
    background-color: #fff !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 {
  position: relative;
  display: inline-block;
  font-size: 10rem;
  /* adjust as needed */
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--hero-gradient1), var(--hero-gradient2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 20px rgba(0, 114, 255, 0.2);
  /* subtle glow */
}

/* Wave overlay inside the text */
.error-text::after {
  content: "404";
  /* must repeat text since it's masking */
  position: absolute;
  inset: 0;
  background: var(--wave-color);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;

  /* animated wave pattern */
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='40' viewBox='0 0 160 40' preserveAspectRatio='none'><path d='M0 20 Q 20 0 40 20 T 80 20 T 120 20 T 160 20 V40 H0 Z' fill='white'/></svg>");
  background-repeat: repeat-x;
  background-size: 160px 80px;
  background-position: 0 100%;

  animation: wave-move 4s linear infinite;
  opacity: 0.6;
  /* foamy overlay */
}

@keyframes wave-move {
  from {
    background-position-x: 0;
  }

  to {
    background-position-x: -160px;
  }
}

.img-style {
  display: block;
  border-radius: 1.5rem;
  box-shadow: 0 0 0 12px var(--sand2),
    0 6px 16px var(--sand-shadow);
  transition: transform .35s ease, box-shadow .35s ease;
}

.img-style:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 0 0 12px var(--sand2),
    0 10px 24px rgba(180, 140, 60, .45);
}

.img-style {
  filter: drop-shadow(0 0 0 transparent);
}