/* Dark Theme Global Styles */
:root {
  --dark-bg: #121212;
  --dark-card: #1e1e1e;
  --accent-color: #26a69a;
  --accent-hover: #00897b;
  --text-color: #f0f0f0;
  --secondary-text: #cfcfcf;
  /* success: '#B2DFDB',  
    danger: '#F06292',   
    warning: '#FFF176',  
    info: '#90CAF9'  */
}


body {
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  background: var(--dark-bg);
  color: var(--text-color);
  margin: 0;
  /* padding: 20px; */
  scroll-behavior: smooth;
  animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

/* Navbar Styles */
.navbar-dark .navbar-nav .nav-link {
  color: #ddd;
  transition: color 0.3s;
}
.brand,
.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
  color: var(--accent-color);
}

/* Parallax Header */
header {
  position: relative;
  height: 300px;
  overflow: hidden;
  background: #000;
  transition: opacity 0.5s ease;
}
header video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  opacity: 0.6;
}
header .header-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.4);
}
header .header-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding-top: 80px;
  animation: fadeInDown 2s;
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-50px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Container and Card Styles */
.container {
  max-width: 1200px;
  margin: 0 auto;
}
.content-container, .card {
  background: var(--dark-card);
  border: 1px solid #333;
  border-radius: 8px;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
  
}
/* Main Container */
.content-container {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    background: var(--dark-card);
}
.card .card-body {
  color: var(--secondary-text);
}
.card-title {
  color: var(--accent-color);
  margin-bottom: 1rem;
  border-bottom: 2px dashed var(--accent-color);
  padding-bottom: 0.5rem;
  transition: color 0.3s ease;
}
.card-title:hover {
  color: var(--accent-hover);
}

/* Top Bar */
.top-bar {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
@media (min-width: 768px) {
  .top-bar {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}
.top-bar h2 {
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

/* Memory Container */
.memory-title {
  text-align: center;
  font-weight: bold;
  color: var(--accent-color);
}
.memory-container {
  border: 2px solid #343a40;
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  background: var(--dark-card);
}
.memory-block {
  text-align: center;
  overflow: hidden;
  white-space: nowrap;
  font-size: 0.8rem;
  padding: 2px;
  border-bottom: 1px solid #000;
  position: relative;
  cursor: pointer;
  color: #fff;
}
.allocated {
  background-color: var(--accent-color);
  color: #fff;
}
.free {
  background-color: #343a40;
  color: #fff;
}
.btn-edit {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  cursor: pointer;
  color: #fff;
}

/* Toast Container */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1050;
}

/* Go to Top Button */
#goTopBtn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  display: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  text-align: center;
  padding: 0;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background: var(--accent-color);
  color: #fff;
  border: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
  transition: transform 0.3s;
}
#goTopBtn:hover {
  transform: scale(1.1);
  background: var(--accent-hover);
}

/* Form Controls */
.form-control:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 0.2rem rgba(38,166,154,0.25);
}

button.btn-primary,
button.btn-success,
button.btn-warning,
button.btn-dark,
button.btn-secondary {
  transition: background 0.3s;
}
button.btn-primary:hover {
  background: #007bffa0;
}
button.btn-success:hover {
  background: #28a745c7;
}
button.btn-warning:hover {
  background: #ffc107c7;
}
button.btn-dark:hover {
  background: #343a40c7;
}
button.btn-secondary:hover {
  background: #6c757dc7;
}

/* Vertical Timeline */
.timeline {
  position: relative;
  margin: 40px 0;
  padding-left: 30px;
  border-left: 3px solid var(--accent-color);
}
.timeline-item {
  position: relative;
  margin-bottom: 30px;
  padding: 15px 20px;
  background: #1e1e1e;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -15px;
  top: 15px;
  width: 12px;
  height: 12px;
  background: var(--accent-color);
  border-radius: 50%;
  border: 2px solid var(--dark-card);
}

/* Accordion Customization */
.accordion-button {
  font-weight: 700;
  background-color: #2c2c2c;
  color: #fff;
  transition: transform 0.3s, background-color 0.3s;
}
.accordion-button:hover {
  transform: scale(1.02);
  background-color: #333;
}

.accordion-button:not(.collapsed) {
  background-color: #333;
  color: var(--accent-color);
}
/* Override default accordion caret with a custom white chevron */
.accordion-button::after {
  /* Remove the default icon */
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  margin-left: auto;
  content: "";
  background: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='16'%20height='16'%20fill='white'%20class='bi%20bi-chevron-down'%20viewBox='0%200%2016%2016'%3E%3Cpath%20fill-rule='evenodd'%20d='M1.646%204.646a.5.5%200%2001.708%200L8%2010.293l5.646-5.647a.5.5%200%2001.708.708l-6%206a.5.5%200%2001-.708%200l-6-6a.5.5%200%2001%200-.708z'/%3E%3C/svg%3E")
    no-repeat center center;
  background-size: 1rem 1rem;
  transition: transform 0.3s ease;
}

/* Rotate the chevron when expanded */
.accordion-button[aria-expanded='true']::after {
  transform: rotate(180deg);
   background: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='16'%20height='16'%20fill='teal'%20class='bi%20bi-chevron-down'%20viewBox='0%200%2016%2016'%3E%3Cpath%20fill-rule='evenodd'%20d='M1.646%204.646a.5.5%200%2001.708%200L8%2010.293l5.646-5.647a.5.5%200%2001.708.708l-6%206a.5.5%200%2001-.708%200l-6-6a.5.5%200%2001%200-.708z'/%3E%3C/svg%3E")
}

.accordion-item {
  background: var(--dark-card);
  border: none;
  margin-bottom: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.accordion-body {
  background: var(--dark-card);
  color: var(--secondary-text);
}

/* Additional Text */
p, li {
  color: var(--secondary-text);
}
.main-color{
  color: var(--accent-color);
}
/* Button Style from README */
.button {
  display: inline-block;
  padding: 10px 20px;
  background: var(--accent-color);
  color: white;
  border-radius: 5px;
  text-align: center;
  text-decoration: none;
  margin: 5px;
  transition: background 0.3s ease;
}
.button:hover {
  background: var(--accent-hover);
}

button:focus,
button:active {
  outline: none!important;
  box-shadow: none!important;
  border: none !important;;
}
    .soonBannerContainer {
      width: 100%;
      overflow: hidden;
      background-color: var(--dark-card);
      position: sticky; /* or 'fixed' if you want it always visible */
      top: 0;
      left: 0;
      z-index: 1000;
      display: flex;
      align-items: center;
      box-shadow: 1px 1px 4px 0px var(--main-color);
    }
.soonBannerContainer.dark-bg{
  background-color: var(--dark-bg);
}
    .soonBanner {
      display: flex;
      width: 200vw; /* double the screen width */
      animation: slideText 30s linear infinite; /* 30s scrolling */
    }

    .soonBannerText {
      width: 100vw;
      font-weight: bold;
      color: var(--accent-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }

    @keyframes slideText {
      0% {
        transform: translateX(0);
      }
      100% {
        transform: translateX(-100vw);
      }
    }
    .sticky-top{
      top: 1.5rem;
    }