:root {
  --primary: #f14636;
  --primary-light: #E8F0FE;
  --primary-dark: #f14636;
  --dark: #1A1A2E;
  --gray-soft: #F8F9FA;
  --shadow-sm: 0 8px 30px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 60px rgba(13, 110, 253, 0.12);
  --border-radius-card: 20px;
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}


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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #1A1A2E;
  background: #ffffff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}


h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.display-4 {
  font-weight: 800;
  letter-spacing: -0.03em;
}

.display-5 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.text-primary {
  color: var(--primary) !important;
}

.bg-primary-soft {
  background-color: var(--primary-light);
}


.glass-nav {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
  transition: var(--transition-smooth);
}

.glass-nav .navbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark) !important;
}

.glass-nav .navbar-brand span {
  color: var(--primary);
}

.glass-nav .nav-link {
  font-weight: 500;
  color: #4A4A6A !important;
  padding: 0.5rem 1rem !important;
  border-radius: 40px;
  transition: var(--transition-smooth);
}

.glass-nav .nav-link:hover,
.glass-nav .nav-link.active {
  color: var(--primary) !important;
  background: var(--primary-light);
}

.glass-nav .navbar-toggler {
  padding: 0.5rem 0.8rem;
  border-radius: 60px;
  background: rgba(13, 110, 253, 0.05);
}


.hero-section {
  min-height: 100vh;
  padding: 120px 0 80px;
  background: linear-gradient(160deg, #ffffff 0%, #f5f9ff 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  right: -200px;
  top: -200px;
  background: radial-gradient(circle, rgba(13, 110, 253, 0.04) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.hero-section .container {
  position: relative;
  z-index: 1;
}

.hero-image-wrapper {
  position: relative;
}

.floating-card {
  position: absolute;
  bottom: -20px;
  right: -10px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  animation: float 4s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--border-radius-card);
  border: 1px solid rgba(255, 255, 255, 0.3);
}


.section-padding {
  padding: 100px 0;
}


.card {
  border-radius: var(--border-radius-card) !important;
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg) !important;
}

.rec-card,
.learning-card {
  border-radius: var(--border-radius-card) !important;
  transition: var(--transition-smooth);
  border: 1px solid rgba(13, 110, 253, 0.06) !important;
  background: #ffffff;
}

.rec-card:hover,
.learning-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13, 110, 253, 0.15) !important;
}

.icon-circle {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 60px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.6rem;
}

.step-number {
  width: 48px;
  height: 48px;
  font-size: 1.2rem;
  background: var(--primary);
  color: #fff;
  border-radius: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}


.accordion-item {
  border: none !important;
  background: #ffffff;
  border-radius: var(--border-radius-card) !important;
  box-shadow: var(--shadow-sm);
}

.accordion-button {
  background: #ffffff !important;
  font-weight: 600;
  color: var(--dark);
  padding: 1.2rem 1.5rem;
  border-radius: var(--border-radius-card) !important;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: var(--primary-light) !important;
}

.accordion-button::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%230D6EFD' class='bi bi-chevron-down' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
}

.accordion-body {
  padding: 1rem 1.5rem 1.5rem;
  color: #4A4A6A;
}


.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 60px !important;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  transition: var(--transition-smooth);
  z-index: 999;
  box-shadow: 0 8px 25px rgba(13, 110, 253, 0.3);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px) scale(1.05);
  color: #fff;
}


[data-animate] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade-up"] {
  transform: translateY(50px);
}

[data-animate="fade-up"].visible {
  transform: translateY(0);
}

[data-animate="fade-right"] {
  transform: translateX(-40px);
}

[data-animate="fade-right"].visible {
  transform: translateX(0);
}

[data-animate="fade-left"] {
  transform: translateX(40px);
}

[data-animate="fade-left"].visible {
  transform: translateX(0);
}


.badge {
  font-weight: 600;
  letter-spacing: 0.01em;
}


@media (max-width: 991.98px) {
  .hero-section {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .floating-card {
    bottom: -10px;
    right: 10px;
    padding: 0.8rem 1.2rem !important;
  }

  .section-padding {
    padding: 60px 0;
  }

  .display-4 {
    font-size: 2.6rem;
  }
}

@media (max-width: 767.98px) {
  .glass-nav .navbar-brand {
    font-size: 1.2rem;
  }

  .hero-section {
    padding: 90px 0 40px;
    text-align: center;
  }

  .hero-section .btn {
    width: 100%;
  }

  .display-4 {
    font-size: 2.2rem;
  }

  .display-5 {
    font-size: 1.8rem;
  }

  .floating-card {
    display: none;
  }

  .section-padding {
    padding: 50px 0;
  }

  .back-to-top {
    width: 44px;
    height: 44px;
    bottom: 20px;
    right: 20px;
  }
}

@media (max-width: 575.98px) {
  .hero-section .d-flex {
    flex-direction: column;
    gap: 0.8rem !important;
  }

  .hero-section .btn {
    border-radius: 60px !important;
  }
}