/* General Styles */
body {
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f8fb; /* light gray-blue */
    color: #222;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* Header and Navigation */
header {
    background: #2563eb; /* blue */
    color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.nav-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 1.2rem 0;
}
.logo {
    font-size: 1.7rem;
    font-weight: bold;
    letter-spacing: 1px;
}
nav {
    position: relative;
}
.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
    justify-content: center;
    align-items: center;
}
.nav-links li a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links li a:hover {
    color: #c7e0ff;
}
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    margin-left: 1.5rem;
}
.menu-toggle span {
    width: 28px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    display: block;
}
.menu-toggle.open span {
    background: #fff !important;
}

/* Dropdown Navigation Styles */
.dropdown {
    position: relative;
}
.dropdown-arrow {
    font-size: 0.8em;
    margin-left: 4px;
}
.dropdown-menu {
    display: none;
    position: absolute;
    background: #fff;
    color: #222;
    min-width: 150px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border-radius: 0 0 8px 8px;
    z-index: 100;
    padding: 0.5rem 0;
    left: 0;
    top: 100%;
}
.dropdown-menu li {
    padding: 0.5rem 1.2rem;
    white-space: nowrap;
}
.dropdown-menu li a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}
.dropdown-menu li a:hover {
    color: #1746a0;
}
/* Fix: Only show .dropdown-menu for .dropdown on hover, not submenus */
.dropdown:hover > .dropdown-menu,
.dropdown:focus-within > .dropdown-menu {
  display: block;
}
/* Submenu only opens on click (open class) */
.dropdown-submenu > .dropdown-menu {
  display: none;
}
.dropdown-submenu.open > .dropdown-menu {
  display: block;
}
.dropdown-submenu > a:hover + .dropdown-menu,
.dropdown-submenu > a:focus + .dropdown-menu {
  display: block;
}
.dropdown-submenu > a:after {
  content: '▼';
  font-size: 0.7em;
  margin-left: 6px;
  vertical-align: middle;
  pointer-events: auto;
}
.dropdown-submenu > a:hover + .dropdown-menu,
.dropdown-submenu > a:focus + .dropdown-menu {
  display: block;
}
.dropdown-submenu > .dropdown-menu {
  top: 0;
  left: 100%;
  margin-top: -0.5em;
  display: none;
  position: absolute;
  min-width: 180px;
  z-index: 200;
  border-radius: 0 8px 8px 8px;
}
.dropdown-submenu:hover > .dropdown-menu,
.dropdown-submenu:focus-within > .dropdown-menu {
  display: block;
}
.dropdown-submenu > a:after {
  content: '▼';
  font-size: 0.7em;
  margin-left: 6px;
  vertical-align: middle;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(37,99,235,0.7), rgba(37,99,235,0.7)), url('assets/hero-bg.jpg') center/cover no-repeat;
    color: #fff;
    padding: 4rem 0 3rem 0;
    text-align: center;
}
.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.hero-content p {
    font-size: 1.2rem;
}

/* Main Content */
.main-content {
    background: #fff;
    margin: 2rem auto;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(37,99,235,0.07);
    padding: 2rem;
    max-width: 900px;
}
.announcements ul {
    padding-left: 1.2rem;
}
.announcements li {
    margin-bottom: 0.7rem;
}

/* Resource Cards */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}
.resource-card {
    background: #f4f8fb;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(37,99,235,0.06);
    padding: 1.5rem;
    text-align: left;
    transition: transform 0.15s;
}
.resource-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 4px 16px rgba(37,99,235,0.12);
}
.resource-card h3 {
    margin-top: 0;
    color: #2563eb;
}
.resource-card a {
    color: #2563eb;
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    max-width: 500px;
    margin: 0 auto;
    background: #f4f8fb;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(37,99,235,0.06);
}
.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.7rem;
    margin-bottom: 1.2rem;
    border: 1px solid #bcd0ee;
    border-radius: 5px;
    font-size: 1rem;
    background: #fff;
}
.contact-form button {
    background: #2563eb;
    color: #fff;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}
.contact-form button:hover {
    background: #1746a0;
}

/* Footer */
footer {
    background: #2563eb;
    color: #fff;
    padding: 1.2rem 0;
    text-align: center;
    margin-top: 2rem;
}
.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.7rem;
}
.social-links a {
    color: #fff;
    margin: 0 0.5rem;
    text-decoration: underline;
    font-size: 1.1rem;
}
.social-links a:hover {
    color: #c7e0ff;
}

.nav-profile-pic {
    width: 44px;
    height: 44px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid #2563eb;
    margin-left: 1.2rem;
    box-shadow: 0 2px 8px rgba(37,99,235,0.10);
} 

.main-navbar, nav.main-navbar {
  background: #2563eb !important;
  min-height: 60px;
  font-size: 1rem;
}
.main-navbar .nav-links li a,
.main-navbar .nav-links li a:visited,
.main-navbar .nav-links li a:active {
  color: #fff !important;
  font-size: 0.98em;
  padding: 0.55em 1em !important;
  border-radius: 8px;
  font-weight: 600;
}
.main-navbar .nav-links li a:hover,
.main-navbar .nav-links li a:focus {
  color: #FFD700 !important;
  background: #1746a0 !important;
}
.main-navbar .dropdown:hover .dropdown-menu,
.main-navbar .dropdown:focus-within .dropdown-menu {
  display: block !important;
}
.main-navbar .dropdown-menu {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  min-width: 180px;
  background: #2563eb !important;
  z-index: 1001;
  border-radius: 0 0 10px 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.10);
  padding: 0.5em 0.7em;
}
.main-navbar .dropdown {
  position: relative;
}
.main-navbar .dropdown-menu li a {
  color: #fff !important;
}
.main-navbar .dropdown-menu li a:hover {
  color: #FFD700 !important;
  background: #1746a0 !important;
} 

.dclassroom-logo {
  width: 140px !important;
  height: 140px !important;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid #b8860b;
  box-shadow: 0 4px 24px rgba(37,99,235,0.18), 0 2px 8px rgba(0,0,0,0.10);
  margin-right: 1.5em;
}
.dclassroom-title {
  font-size: 3.4rem;
  font-weight: 900;
  color: #b8860b;
  letter-spacing: 2px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.18),0 1px 0 #fffbe6;
  line-height: 1.1;
} 

/* Responsive styles for mobile visibility */
body, html {
  max-width: 100vw;
  overflow-x: hidden;
  box-sizing: border-box;
}
.container, .main-content, main, header, footer, .footer-container {
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
  padding-left: 1rem;
  padding-right: 1rem;
}
nav, .nav-links {
  flex-wrap: wrap;
}
.resource-card, .contact-form, .notice-container, .gallery-list {
  max-width: 100vw;
  box-sizing: border-box;
}
img, .nav-profile-pic {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, textarea, a {
  font-size: 1rem;
  min-height: 44px;
  min-width: 44px;
  box-sizing: border-box;
}
/* Stack columns on small screens */
@media (max-width: 700px) {
  main, .main-content, .container {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 1.2rem !important;
  }
  aside, .sidebar {
    max-width: 100vw !important;
    width: 100vw !important;
    margin: 0 !important;
    padding: 0.5rem !important;
  }
  .resources-grid {
    flex-direction: column !important;
    gap: 1rem !important;
  }
  html, body {
    font-size: 0.92rem;
  }
  h1 {
    font-size: 1.4rem !important;
  }
  h2 {
    font-size: 1.15rem !important;
  }
  h3 {
    font-size: 1rem !important;
  }
  p, a, button, input, textarea, .nav-links li a {
    font-size: 0.98rem !important;
  }
  .header-logo-title-row {
    flex-direction: column !important;
    align-items: center !important;
    gap: 0.2em !important;
  }
  .dclassroom-logo {
    margin-bottom: 0.2em !important;
    margin-right: 0 !important;
  }
  .dclassroom-title, .dclassroom-float.color-cycle {
    text-align: center !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
}