/* variables */
:root {
  --color-bg: #f9fafb;
  --color-text: #181818;
  --color-muted: #555;
  --color-primary: #007bff;
  --color-accent: #d12c2c;
  --color-danger: #dc3545;
  --color-card-bg: #ffffff;
  --color-border: #e0e0e0;
  --color-placeholder: #888;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f9fafb;
  color: var(--color-text);
  line-height: 1.6;
}

/* Container */
.container {
  max-width: 1000px;
  margin: auto;
  padding: 2rem;
}

/* Header */
header {
  background-color: #f9fafb;
  text-align: center;
  padding: 3rem 1rem;
}

header h1 {
  font-size: 3rem;
  color: var(--color-text);
}

header p {
  font-size: 1.25rem;
  color: var(--color-muted);
  margin-top: 0.5rem;
}

header p .highlight {
  color: #d12c2c;
  font-weight: bold;
}
/*glass effect */
header.sticky-top {
  background-color: #f0f2f5;
  backdrop-filter: blur(6px);
}

/* Navbar */
.navbar-nav .nav-link {
  color: var(--color-primary);
  font-weight: 500;
  transition: color 0.3s;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: #d12c2c;
}

/* Main Welcome Section */
main {
  text-align: center;
  padding: 4rem 2rem;
  background: #f9fafb;
}

main h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

main p {
  font-size: 1.1rem;
  color: var(--color-muted);
}

/* About Section */
#about {
  background-color: #f9fafb;
  padding: 4rem 2rem;
  text-align: center;
}

#about h2 {
  font-size: 2rem;
  color: var(--color-text);
  margin-bottom: 1rem;
}

#about p {
  max-width: 750px;
  margin: 1rem auto;
  font-size: 1.1rem;
  color: #444;
  line-height: 1.7;
}

/* Footer */
footer {
  text-align: center;
  background-color: #f9fafb;
  padding: 2rem;
  color: #777;
  font-size: 0.9rem;
}

section h2::after {
  content: "";
  display: block;
  width: 50px;
  height: 3px;
  background-color: #d12c2c;
  margin: 0.5rem auto 1.5rem;
  border-radius: 10px;
}

/* Dark mode styles */
body.dark-mode {
  background-color: #181818;
  color: #f9fafb;
}
body.dark-mode header p {
  color: #f9fafb;
}
body.dark-mode .display-4 {
  color: #f9fafb;
}

body.dark-mode header,
body.dark-mode footer {
  background-color: #181818;
}

body.dark-mode a {
  color: #90caf9;
}

body.dark-mode .dropdown-menu {
  background-color: #181818;
  color: #f9fafb;
}

.toggle-dark {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
}

/* Reposition on larger screens */
@media (min-width: 992px) {
  .toggle-dark {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1050;
  }
}
/* Fix Bootstrap light backgrounds in dark mode */
body.dark-mode .bg-light {
  background-color: #181818 !important;
}
body.dark-mode .navbar-toggler {
  background-color: #181818 !important;
}

body.dark-mode .text-danger {
  color: #ef5350 !important;
}
body.dark-mode .navbar .nav-link.active {
  color: #f9fafb !important;
}
body.dark-mode .navbar .nav-link {
  color: #f9fafb;
}

body.dark-mode .navbar .nav-link:hover {
  color: #f0f0f0;
}
body.dark-mode nav ul li a:hover {
  color: #ef5350;
}
.dark-mode .text-muted {
  color: #f9fafb !important;
}
body,
header,
footer,
main,
section {
  transition: background-color 0.3s, color 0.3s;
}

.card {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-title {
  margin-bottom: 0.5rem;
}

.card-text {
  font-size: 0.95rem;
}

.card img {
  object-fit: cover;
  height: 200px;
}
/* contact */
/* Contact section */
#contact {
  padding: 4rem 1rem;
}

#contact h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

#contact h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: #dc3545; /* red underline */
  margin: 8px auto 0;
  border-radius: 2px;
}

#contact p {
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1rem;
  color: #555;
}

#contact form .form-control {
  border-radius: 6px;
  font-size: 0.875rem;
  padding: 0.45rem 0.75rem;
  margin-bottom: 1rem;
  border: 1px solid #f9fafb;
}

#contact form .btn {
  padding: 0.6rem 1.4rem;
  font-size: 1rem;
  border-radius: 6px;
}

#contact .contact-links a {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.95rem;
  margin: 0 10px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

#contact .contact-links a:hover {
  text-decoration: underline;
}
.form-wrapper {
  max-width: 600px;
  margin: 0 auto;
}
.more-text {
  display: none;
}

.read-more-btn {
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  font-weight: 500;
  padding-left: 0;
}
/* Dark Mode */
.dark-mode #contact {
  background-color: #181818;
  color: #f9fafb;
}

.dark-mode #contact p {
  color: #181818 !important;
}

.dark-mode #contact .form-control {
  background-color: #2a2a2a;
  border: 1px solid #444;
  color: #f9fafb;
}

.dark-mode #contact .form-control::placeholder {
  color: #888;
}

.dark-mode #contact .btn {
  background-color: var(--color-primary);
  color: #f9fafb;
}

.dark-mode #contact .contact-links a {
  color: #f9fafb;
}
.dark-mode #contact h2.text-3xl {
  color: #181818;
}

/* back to top */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 20px;
  z-index: 9999;
  font-size: 20px;
  background-color: var(--color-primary);
  color: white;
  border: none;
  padding: 10px 14px;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  transition: opacity 0.3s ease-in-out;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

#backToTop:hover {
  background-color: var(--color-primary);
}

/*hamburger menu*/
/* Hamburger button */
.navbar-toggler {
  border: 2px solid var(--color-border) !important;
  border-radius: 50px !important;
  background-color: #fff !important;
  padding: 0.4rem 0.6rem;
  transition: all 0.3s ease-in-out !important;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1) !important;
}

/* Icon inside the button */
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(209, 44, 44, 1)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

/* Hover effect */
.navbar-toggler:hover {
  background-color: rgba(0, 123, 255, 0.05) !important;
  border-color: var(--color-primary) !important;
}

.navbar-collapse {
  border-radius: 10px;
  padding: 1rem;
  text-align: center;
}

.navbar-nav {
  flex-direction: column;
  gap: 0.75rem;
}

.navbar-nav .nav-link {
  font-size: 1rem;
  padding: 0.3rem;
  transition: color 0.3s;
}
.navbar-collapse.collapse.show {
  animation: fadeInSlide 0.3s ease-in-out;
}

@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
body.dark-mode .navbar-collapse {
  background-color: #222;
}

body.dark-mode .navbar-nav .nav-link {
  color: #f9fafb;
}
/* Dark mode override */
body.dark-mode .navbar-toggler-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='white' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}
/* Dark Mode styling */
body.dark-mode #backToTop {
  background-color: var(--color-muted);
  color: #fff;
}