/* ========================================================================
   Reconstructed UIkit, Responsive Layout & Hamburger Menu CSS
   ======================================================================== */

/* --- Core Resets & Base --- */
* {
  box-sizing: border-box;
}

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: #444;
  background-color: #000000;
  background-image: url("back2.jpg");
  background-size: cover;
  background-attachment: fixed;
  margin: 0;
  padding: 0;
}

.content-box img {
  max-height: 300px;
}

a {
  color: #4c8cba;
  text-decoration: none;
  transition:
    color 0.2s,
    background-color 0.2s;
}

a:hover {
  color: #4c8cba;
}

p {
  margin-bottom: 20px;
  text-align: justify;
}

h1,
h2,
h4,
h5 {
  color: #222;
  font-weight: 400;
  margin: 0 0 15px 0;
}

h3 {
  color: #222;
  font-weight: 600;
  margin: 30px 0 0 0;
}

/* --- Layout Containers --- */
.uk-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 0;
}

.uk-flex {
  display: flex;
}

.uk-flex-center {
  justify-content: center;
}

/* --- Buttons --- */
.uk-button-primary {
  background-color: #51ad43;
  color: #ffffff;
  padding: 10px 25px;
  border: none;
  border-radius: 3px;
  font-size: 16px;
  cursor: pointer;
  text-transform: uppercase;
  font-weight: bold;
  display: inline-block;
}

.uk-button-primary:hover {
  background-color: #4c8cba;
  color: #fff;
  text-decoration: none;
}

/* --- Header & Marquee --- */
.tm-block-header {
  background: none;
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.logo_turquoise {
  background-color: #4c8cba;
  padding: 5px 0;
  text-align: center;
}

.marquee-wrapper {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.marquee-style {
  color: #fff;
  font-weight: bold;
  font-size: 15px;
  width: 95%;
  overflow: hidden;
  white-space: nowrap;
  margin: 0 auto;
}

.marquee-content {
  display: inline-block;
  padding-left: 100%;
  animation: marquee 25s linear infinite;
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-100%);
  }
}

/* Header Logo Section (Fixing Mobile Height & Overflow) */
.header-logo-area {
  text-align: center;
  padding: 0;
  background-color: #4c8cba;
  margin: 10px auto 0 auto;
}

.header-banner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0; /* Removes any text gap under the image */
}

.header-logo-image {
  width: 100%;
  height: auto; /* Ensures perfect aspect ratio scaling */
  display: block;
}

/* --- Navbar & Hamburger Navigation --- */
.tm-navbar-wrapper {
  background-color: #999999;
  position: sticky;
  top: 0;
  z-index: 1001; /* High index to stay above drawer */
  width: 100%;
}

.uk-navbar {
  display: flex;
  align-items: center; /* Center items vertically */
  min-height: 55px; /* Ensures background matches the toggle button height */
  width: 100%;
  position: relative;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  margin: 15px 20px 15px auto;
  z-index: 1002; /* Must be clickable over everything */
}

.menu-toggle .bar {
  width: 100%;
  height: 3px;
  background-color: #ffffff;
  transition: all 0.3s ease-in-out;
}

.uk-navbar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  font-family:
    "Roboto Condensed", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14.5px;
  font-weight: 100;
}

.uk-navbar-nav > li {
  position: relative;
}

.uk-navbar-nav > li > a {
  display: block;
  padding: 18px 22px;
  color: #ffffff;
  text-transform: uppercase;
}

.uk-navbar-nav > li:hover > a,
.uk-navbar-nav > li.uk-active > a {
  background-color: #4c8cba;
  color: #ffffff;
}

/* Dropdowns Desktop Setup */
.uk-dropdown-navbar {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #999999;
  min-width: 260px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  padding: 10px 0;
  z-index: 1000;
}

.uk-navbar-nav > li:hover .uk-dropdown-navbar {
  display: block;
}

.uk-nav-navbar {
  list-style: none;
  padding: 0;
  margin: 0;
}

.uk-nav-navbar > li > a {
  display: block;
  padding: 10px 20px;
  color: #ffffff;
  font-size: 14px;
  text-align: left;
  transition: all 0.2s ease-in-out;
}

.uk-nav-navbar > li > a:hover {
  background-color: #777777;
  padding-left: 25px;
}

/* --- Slideshow / Hero Image --- */
.tm-slideshow-avanti {
  position: relative;
  min-height: auto;
  height: auto;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  /* Follows width of uk-container strictly */
  width: 100%;
}

.uk-overlay-panel {
  background: rgba(76, 140, 186, 0.6);
  padding: 30px;
  color: #fff;
  width: 100%;
}

.uk-overlay-panel h3 {
  color: #fff;
  font-size: 28px;
  font-weight: bold;
}

.uk-overlay-panel p {
  color: #eee;
  font-size: 16px;
}

.menu-icon {
  margin-right: 8px;
}

/* --- Content Blocks --- */
.page-view {
  display: none;
  padding: 0;
  animation: fadeEffect 0.5s ease-out;
}

.page-view.active {
  display: block;
}

@keyframes fadeEffect {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.content-box {
  background: #fff;
  padding: 30px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.05);
  border: 1px solid #eaeaea;
  margin-top: 20px;
  margin-bottom: 20px;
}

.img-link {
  display: block;
  margin: 15px 0;
  text-align: center;
}

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

.text-align-center {
  text-align: center;
  color: #4c8cba;
  font-weight: bold;
}

/* --- Responsive Table Optimization --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
}

table td,
table th {
  padding: 12px;
  border: 1px solid #ddd;
  vertical-align: top;
}

table tr:nth-child(even) {
  background-color: #f9f9f9;
}

table strong {
  color: #1f2d3d;
}

ul.table-list {
  margin: 0;
  padding-left: 15px;
}

ul.table-list li {
  margin-bottom: 5px;
}

/* --- Bottom Block A (Green Track Module) --- */
.tm-block-bottom-a {
  background-color: #51ad43;
  color: #ffffff;
  padding: 50px 0;
  margin-top: 30px;
}

.tm-block-bottom-a h1 {
  color: #ffffff;
  text-align: center;
  margin-bottom: 30px;
}

.tm-block-bottom-a table td {
  border: none;
  padding: 15px;
  color: #fff;
}

.tm-block-bottom-a table tr:nth-child(even) {
  background-color: transparent;
}

.tm-block-bottom-a table strong {
  color: #fff;
  font-size: 16px;
  font-weight: bold;
}

/* Track table initial structures */
.responsive-table.tracks-table td {
  width: 33.33%;
}

/* --- Footer & Sponsors --- */
.tm-block-footer {
  background-color: #1f2d3d;
  color: #8892a0;
  padding: 40px 0 20px 0;
  text-align: center;
}

.tm-block-footer strong {
  color: #ffffff;
}

.sponsor-images {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
  background: #fff;
  padding: 30px;
  margin-top: 20px;
}

.sponsor-images h2 {
  width: 100%;
  text-align: center;
}

.sponsor-images img {
  max-height: 100px;
  max-width: 100%;
  background: #fff;
  padding: 5px;
  object-fit: contain;
}

/* --- Global Helpers --- */
.mt-10 {
  margin-top: 10px;
}
.bg-f1 {
  background: #f1f1f1;
}
.text-16 {
  font-size: 16px;
}
.text-blue {
  color: #4c8cba;
}
.font-w-300 {
  font-weight: 300;
}

/* ========================================================================
   Responsive Media Queries (Screen Adaptation)
   ======================================================================== */

@media (max-width: 900px) {
  /* Dynamic Grid Changes for Structural Tables */
  .responsive-table,
  .responsive-table thead,
  .responsive-table tbody,
  .responsive-table th,
  .responsive-table td,
  .responsive-table tr {
    display: block;
    width: 100% !important;
  }

  .responsive-table tr {
    margin-bottom: 15px;
    border-bottom: 1px solid #ddd;
  }

  .responsive-table td {
    border: none;
    position: relative;
    padding-left: 15px;
  }

  /* Keep the desktop table headers hidden on mobile */
  .track-headers {
    display: none !important;
  }

  /* 1. Base styling to make the mobile track titles look like beautiful header blocks */
  .responsive-table.tracks-table tr:nth-child(2) td::before {
    display: block;
    font-size: 18px;
    font-weight: bold;
    color: #51ad43; /* Green text to match your theme */
    background-color: #ffffff; /* Solid white background */
    padding: 12px 15px;
    /* Negative margin pulls the white box to the very edges of the table cell */
    margin: -20px -15px 20px -15px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); /* Soft drop shadow */
  }

  /* 2. The actual text content for each track */
  .responsive-table.tracks-table tr:nth-child(2) td:nth-child(1)::before {
    content: "Track 1: Artificial Intelligence";
  }

  .responsive-table.tracks-table tr:nth-child(2) td:nth-child(2)::before {
    content: "Track 2: Data Science & Engineering";
  }

  .responsive-table.tracks-table tr:nth-child(2) td:nth-child(3)::before {
    content: "Track 3: Networks & Distributed Systems";
  }

  .responsive-table.tracks-table td {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 20px 15px;
  }

  /* Hamburger transform animation to 'X' when active */
  .menu-toggle {
    display: flex;
  }

  .menu-toggle.is-active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  .menu-toggle.is-active .bar:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.is-active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  /* Animated Mobile Drawer setup */
  .nav-container {
    position: fixed;
    top: 55px; /* Starts directly below navbar height */
    left: -100%; /* Drawer hidden to the left initially */
    width: 280px;
    height: calc(100vh - 55px);
    background-color: #555555;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    transition: left 0.35s ease-in-out;
    z-index: 1000;
    display: block;
    overflow-y: auto;
  }

  .nav-container.is-open {
    left: 0; /* Slides in Drawer completely */
  }

  .uk-navbar-nav {
    flex-direction: column;
    width: 100%;
  }

  .uk-navbar-nav > li {
    width: 100%;
    border-bottom: 1px solid #444;
  }

  .uk-navbar-nav > li > a {
    padding: 15px 20px;
    text-align: left;
  }

  /* Dropdown setups on Mobile Viewports */
  .uk-dropdown-navbar {
    position: static;
    display: none;
    width: 100%;
    box-shadow: none;
    background-color: #444;
    padding: 0;
  }

  .uk-dropdown-navbar.is-visible {
    display: block;
  }

  .uk-nav-navbar > li > a {
    padding: 12px 30px;
  }

  /* General Element Tuning for Smaller Layouts */
  .tm-slideshow-avanti {
    min-height: 250px;
    margin-top: 0;
  }

  .uk-overlay-panel {
    padding: 20px;
    text-align: center;
  }

  .uk-overlay-panel h3 {
    font-size: 22px;
  }

  .content-box {
    padding: 15px;
  }
}