:root {
    --text-color: #333;
    --light-gray: #f8f9fa;
    --white: #ffffff;
}

.navbar{
    background-color: #0b3a5b;
}

.navbar .navbar-brand{
    color: #ffffff;
}

.navbar .nav-link{
    color: #ffffff;
}

.navbar .nav-link:hover{
    color: #ddd;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.4rem;
    font-weight: 400;
    opacity: 0.9;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 600;
}

.description-text,
.card-text,
.card-title,
.card-footer small {
    font-size: 1.2rem;
    line-height: 1.6;
}

.card-title {
    font-weight: 700;
}

.itinerary-subtitle {
    font-size: 1.6rem;
    font-weight: 600;
}

.itinerary-text {
    font-size: 1.3rem;
    line-height: 1.6;
}

.navbar-nav .nav-link {
    font-size: 1.3rem !important;
    padding: 10px 15px !important;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .description-text,
    .card-text,
    .card-footer small {
        font-size: 1.1rem;
    }

    .card-title {
        font-size: 1.15rem;
    }

    .itinerary-subtitle {
        font-size: 1.4rem;
    }

    .itinerary-text {
        font-size: 1.1rem;
    }

    .navbar-nav .nav-link {
        font-size: 1rem !important;
        padding: 8px 12px !important;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .description-text,
    .card-text,
    .card-footer small {
        font-size: 1rem;
    }

    .card-title {
        font-size: 1.05rem;
    }

    .itinerary-subtitle {
        font-size: 1.2rem;
    }

    .itinerary-text {
        font-size: 1rem;
    }
}

.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images2/problem4.JPG');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--white);
    text-align: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.feature-item {
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-3px);
}

.tour-description {
    background: var(--white);
}

.cards-section {
    background: var(--white);
}

.carousel-section {
    background: var(--light-gray);
}

.itinerary {
    background: var(--white);
}

.footer-site {
    background: #0b3a5b;
}

.footer-site a {
    text-decoration: none;
}

.carousel-item img {
    border-radius: 8px;
}

.carousel-control-prev,
.carousel-control-next {
    width: 5%;
}

.carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin: 0 4px;
}

.card-group.gap-3 .card {
    margin: 0 0.5rem;
}

.card-group.gap-4 .card {
    margin: 0 1rem;
}

/* TOGGLE BUTTON Dark/Light Mode */
.theme-btn {
  margin-top: 10px;
  padding: 8px 14px;
  border: 1px solid #ffffff66;
  border-radius: 8px;
  background: #ffffff1a;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.theme-btn:hover {
  background: #ffffff2a;
  transform: translateY(-2px);
}

/* === DARK MODE for Astana Tour page === */
body.dark-mode {
  background: #0f172a;
  color: #f1f5f9;
  transition: background 0.3s, color 0.3s;
}

/* Navbar */
body.dark-mode .navbar {
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%) !important;
  color: #f1f5f9;
}
body.dark-mode .navbar .navbar-brand,
body.dark-mode .navbar .nav-link {
  color: #f1f5f9 !important;
}
body.dark-mode .navbar .nav-link:hover {
  color: #93c5fd !important;
}

/* Hero section */
body.dark-mode .hero {
  background: linear-gradient(rgba(15, 23, 42, 0.55), rgba(15, 23, 42, 0.55)), 
              url('../images2/problem4.JPG');
  background-size: cover;
  background-position: center;
  color: #e2e8f0;
}

/* Section backgrounds */
body.dark-mode .tour-description,
body.dark-mode .cards-section,
body.dark-mode .carousel-section,
body.dark-mode .itinerary {
  background: #1e293b !important;
  color: #f1f5f9;
}

/* Section titles */
body.dark-mode .section-title {
  color: #93c5fd;
}

/* Description & text */
body.dark-mode .description-text,
body.dark-mode .itinerary-text,
body.dark-mode .card-text {
  color: #e2e8f0;
}

/* Cards */
body.dark-mode .card {
  background: #1e293b;
  color: #f1f5f9;
  border: 1px solid #334155;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .5);
}
body.dark-mode .card-title {
  color: #93c5fd;
}
body.dark-mode .card-footer small {
  color: #cbd5e1;
}

/* Carousel captions */
body.dark-mode .carousel-caption {
  background: rgba(0, 0, 0, 0.45);
  color: #f1f5f9;
  text-shadow: 0 1px 4px rgba(0,0,0,0.8);
}

/* Buttons */
body.dark-mode .btn-success {
  background-color: #15803d;
  border-color: #15803d;
}
body.dark-mode .btn-success:hover {
  background-color: #16a34a;
}
body.dark-mode .btn-outline-info {
  border-color: #60a5fa;
  color: #60a5fa;
}
body.dark-mode .btn-outline-info:hover {
  background-color: #60a5fa;
  color: #0f172a;
}

/* Footer */
body.dark-mode .footer-site {
  background: #1e293b;
  color: #f1f5f9;
}
body.dark-mode .footer-site a {
  color: #93c5fd !important;
  text-decoration: underline;
}
body.dark-mode .footer-site a:hover {
  color: #60a5fa !important;
}

/* Dark mode toggle button */
.theme-btn {
  margin-top: 10px;
  padding: 8px 14px;
  border: 1px solid #ffffff66;
  border-radius: 8px;
  background: #ffffff1a;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.theme-btn:hover {
  background: #ffffff2a;
  transform: translateY(-2px);
}

/* Images adjustment */
body.dark-mode img {
  filter: brightness(0.95) contrast(1.05);
}

/* Small screen readability */
@media (max-width: 576px) {
  .hero-title { font-size: 1.8rem; }
  .hero-subtitle { font-size: 1rem; }
}

/* Smooth transitions for theme change */
* {
  transition: background-color .25s ease, color .25s ease, border-color .25s ease;
}