:root {
  /* Light theme variables */
  --primary-color: #456faa;
  --secondary-color: #ffffff;
  --background-color: #ffffff;
  --text-secondary: #6c757d;
  --text-color: #1f2937;
  --card-bg: #ffffff;
  --navbar-bg: #ffffff;
  --navbar-text: #1f2937;
  --section-bg: #ffffff;
  --title-bg: #ffffff;
  --footer-bg: #ffffff;
  --testimonial-bg: #ffffff;
  --download-image: url("../images/DownloadAppStoreBlack.png");
  --download-hover-image: url("../images/DownloadAppStoreWhite.png");
}

[data-theme="dark"] {
  --primary-color: #456faa;
  --secondary-color: #374151;
  --background-color: #111827;
  --text-secondary: #adb5bd;
  --text-color: #f9fafb;
  --card-bg: #1f2937;
  --navbar-bg: #111827;
  --navbar-text: #f9fafb;
  --section-bg: #1f2937;
  --title-bg: #1f2937;
  --footer-bg: #1f2937;
  --testimonial-bg: #1f2937;
  --download-image: url("../images/DownloadAppStoreWhite.png");
  --download-hover-image: url("../images/DownloadAppStoreBlack.png");
}

body {
  font-family: "Montserrat", sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
  min-height: 100vh;
}

html {
  scroll-behavior: smooth;
  overflow: scroll;
}

::-webkit-scrollbar {
  width: 0px;
  background: transparent;
}

/* ANCHOR Section 1 */

#title {
  background-color: transparent;
}

.navbar {
  border-radius: 10px;
  background-color: var(--navbar-bg);
  padding: 1rem 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  margin-right: 0;
  padding-left: 1rem;
}

.navbar-brand p {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navbar-text);
  margin: 0;
}

.nav-item {
  padding: 0 18px;
}

.nav-link {
  color: var(--navbar-text) !important;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--primary-color) !important;
}

.navbar-toggler {
  margin-right: 1rem;
  border-color: var(--border-color);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23212529' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="dark"] .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23f8f9fa' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

#theme-toggle {
  color: var(--text-primary);
  font-size: 1.2rem;
  padding: 0.5rem 1rem 0.5rem 0.5rem;
  margin-right: 1rem;
  transition: color 0.3s ease;
  border: none;
  background: none;
}

#theme-toggle i {
  color: #212529;
  opacity: 1;
}

[data-theme="dark"] #theme-toggle i {
  color: #f8f9fa;
}

.container-fluid {
  padding: 2% 5% 2% 10%;
}

.center-block {
  padding-top: 5%;
}

h1 {
  font-family: "Montserrat-Black";
  font-size: 3rem;
  line-height: 1.3;
  color: var(--text-color);
  padding-right: 0;
}

h3 {
  font-family: "Montserrat-Black", Helvetica;
  font-size: 1.5rem;
}

h2 {
  font-family: "Montserrat", Helvetica;
  font-size: 1.5rem;
  line-height: 1.5;
}

p {
  color: var(--text-color);
  opacity: 0.8;
}

.title-text-container {
  padding-top: 10%;
}

.app-title {
  font-size: 2rem;
  line-height: 1.1;
  color: var(--text-color);
}

.title-text {
  font-family: "Montserrat";
  padding-right: 0;
  font-size: 1.3rem;
  line-height: 1.1;
  color: var(--text-color);
  opacity: 0.8;
}

/* NOTE Download Buttons */
.download-button {
  background-image: var(--download-image);
  border-style: solid;
  background-size: 100%;
  transition: all 0.3s ease;
  background-color: var(--background-color);
  border-color: var(--background-color);
  height: 63px;
  width: 180px;
}

.download-button:hover {
  background-image: var(--download-hover-image);
  transform: translateY(-2px);
  height: 63px;
  width: 180px;
}

.title-btn {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  height: 53px;
  width: 150px;
}

.cta-btn {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  height: 63px;
  width: 180px;
}

/* NOTE Iphone Image */

.iphone {
  width: 55%;
  margin: auto;
  display: block;
  border-radius: 16px;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
  transition: transform 0.3s ease;
}

.iphone:hover {
  transform: scale(1.05);
}

.arrow-btn {
  background-color: var(--title-bg);
  display: block;
  text-align: center;
  border: none;
  margin: auto;
  width: 100%;
}

.arrow-btn:focus {
  border: none;
}

.down-arrow {
  padding-bottom: 10px;
  margin: auto;
  width: 120px;
  height: 100px;
  filter: invert(0.3);
}

[data-theme="dark"] .down-arrow {
  filter: invert(0.8);
}

/* NOTE Feature Section */

#features {
  padding: 2% 5%;
  background-color: transparent;
}

.feature-box {
  text-align: center;
  padding: 1rem 1.25rem;
  margin: 0.5rem;
  background-color: var(--card-bg);
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  min-height: 170px;
  max-width: 260px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.feature-box:hover {
  transform: translateY(-5px);
}

.feature-box h3 {
  color: var(--text-color);
  font-size: 1.1rem;
}

.feature-box p {
  margin: 0;
  padding: 0 0.5rem;
  line-height: 1.3;
  font-size: 0.85rem;
}

.icon {
  color: var(--text-color);
  margin: 0.5rem 0;
  font-size: 1.75rem;
  transition: color 0.3s ease;
}

.icon:hover {
  color: var(--secondary-color);
}

/* NOTE Testimaonial Section */

#testimonials {
  background-color: transparent;
  color: var(--text-color);
  padding-bottom: 3%;
}

.carousel-item {
  padding: 7% 10%;
}

.carousel-text {
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-color);
}

.testimonial-image {
  width: 240px;
  margin: auto;
  display: block;
  padding-bottom: 8%;
  border-radius: 1rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Carousel Controls */
.carousel-control-prev-icon,
.carousel-control-next-icon {
  background-color: transparent;
  border: 2px solid var(--text-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  opacity: 0.7;
  transition: all 0.3s ease;
}

.carousel-control-prev-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231f2937'%3e%3cpath d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e");
}

.carousel-control-next-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231f2937'%3e%3cpath d='M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

[data-theme="dark"] .carousel-control-prev-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23f9fafb'%3e%3cpath d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e");
}

[data-theme="dark"] .carousel-control-next-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23f9fafb'%3e%3cpath d='M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.carousel-control-prev-icon:hover,
.carousel-control-next-icon:hover {
  opacity: 1;
  transform: scale(1.1);
}

.carousel-indicators {
  margin-bottom: 0;
}

.carousel-indicators button {
  background-color: var(--text-color);
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.carousel-indicators button.active {
  opacity: 1;
}

.carousel-indicators button:hover {
  opacity: 0.8;
}

/* NOTE CTA Section */

#cta {
  padding: 5% 5% 0;
  text-align: center;
  background-color: transparent;
}

.cta-heading {
  font-family: "Montserrat-Black", Helvetica;
  font-weight: 600;
  font-size: 2rem;
  line-height: 1.5;
  color: var(--text-color);
}

/* NOTE Footer Section */

#footer {
  background-color: transparent;
  color: var(--text-color);
  padding: 5% 15%;
  text-align: center;
}

.social-icon {
  margin: 20px 10px;
  color: var(--text-color);
  transition: color 0.3s ease;
}

.social-icon:hover {
  color: var(--secondary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container-fluid {
    padding: 2% 5%;
  }

  .navbar-brand {
    padding-left: 0.5rem;
  }

  #features {
    padding: 1% 3%;
  }

  .feature-box {
    margin: 0.5rem;
    padding: 1rem;
    height: 200px;
  }

  .feature-box h3 {
    font-size: 1.1rem;
  }

  .feature-box p {
    font-size: 0.85rem;
  }

  .icon {
    font-size: 1.75rem;
  }

  .testimonial-image {
    width: 200px;
  }
}