/* ===== CSS VARIABLES & DESIGN SYSTEM ===== */
:root {
  /* Ajnabi Brand Colors */
  --deep-blue: #003251;
  --vibrant-orange: #FF7A11;
  --turquoise: #05B3B4;
  --deep-blue-lighter: #004366;
  --deep-blue-darker: #002238;

  --primary-color: var(--vibrant-orange);
  --secondary-color: var(--turquoise);
  --accent-color: var(--turquoise);

  --bg-dark: var(--deep-blue);
  --bg-darker: var(--deep-blue-darker);
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-hover: rgba(255, 255, 255, 0.08);

  --text-primary: #ffffff;
  --text-secondary: #d4e7ed;
  --text-muted: #9cb8c4;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Typography - Ajnabi Brand Fonts */
  --font-body: 'Raleway', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Caveat', cursive, 'Brush Script MT', cursive;

  /* Effects */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);

  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===== RESET & BASE STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Asterisk Pattern Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 50px, rgba(255, 255, 255, 0.02) 50px, rgba(255, 255, 255, 0.02) 51px),
    repeating-linear-gradient(90deg, transparent, transparent 50px, rgba(255, 255, 255, 0.02) 50px, rgba(255, 255, 255, 0.02) 51px),
    radial-gradient(circle at 25px 25px, rgba(5, 179, 180, 0.05) 0%, transparent 10px),
    radial-gradient(circle at 25px 25px, rgba(255, 122, 17, 0.03) 0%, transparent 15px);
  background-size: 50px 50px;
  z-index: -1;
  animation: backgroundShift 15s ease infinite;
}

@keyframes backgroundShift {

  0%,
  100% {
    opacity: 0.8;
    transform: scale(1);
  }

  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}

/* ===== TYPOGRAPHY ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
}

/* ===== LAYOUT ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

/* ===== NAVIGATION ===== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(0, 50, 81, 0.95);
  backdrop-filter: blur(20px);
  padding: var(--spacing-sm) 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

nav.navbar-hidden {
  opacity: 0;
  visibility: hidden;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.logo {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: #ffffff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--vibrant-orange);
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--vibrant-orange);
  color: white;
  box-shadow: 0 4px 20px rgba(255, 122, 17, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(255, 122, 17, 0.6);
  background: #ff8c2e;
}

.btn-secondary {
  background: var(--turquoise);
  color: white;
  border: 2px solid var(--turquoise);
  box-shadow: 0 4px 20px rgba(5, 179, 180, 0.3);
}

.btn-secondary:hover {
  background: #06cfd0;
  border-color: #06cfd0;
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(5, 179, 180, 0.5);
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  animation: fadeInUp 1s ease;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  font-family: var(--font-heading);
  text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.4);
}

.hero .highlight {
  color: var(--vibrant-orange);
  font-family: var(--font-heading);
  display: inline-block;
  text-shadow: 2px 2px 4px rgba(255, 122, 17, 0.3);
}



.hero p {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  max-width: 700px;
  margin: 0 auto var(--spacing-md);
  color: var(--text-secondary);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

.floating-elements {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
}

.float {
  position: absolute;
  background: radial-gradient(circle, var(--turquoise) 0%, var(--vibrant-orange) 100%);
  border-radius: 50%;
  opacity: 0.08;
  animation: float 20s infinite;
}

.float-1 {
  width: 300px;
  height: 300px;
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.float-2 {
  width: 200px;
  height: 200px;
  top: 60%;
  right: 15%;
  animation-delay: 2s;
}

.float-3 {
  width: 150px;
  height: 150px;
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
}

@keyframes float {

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

  50% {
    transform: translateY(-30px) rotate(180deg);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--vibrant-orange);
  transform: scaleX(0);
  transition: var(--transition-normal);
}

.card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 255, 255, 0.2);
}

.card:hover::before {
  transform: scaleX(1);
}

/* ===== FEATURES SECTION ===== */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-subtitle {
  color: var(--turquoise);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  text-align: center;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  display: block;
}

.feature-card h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

/* ===== HOW IT WORKS ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  position: relative;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--vibrant-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto var(--spacing-sm);
  box-shadow: 0 0 30px rgba(255, 122, 17, 0.4);
}

/* ===== SUBJECTS SECTION ===== */
.subjects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.subject-tag,
a.subject-tag,
a.subject-tag:visited,
a.subject-tag:active,
a.subject-tag:focus {
  background: rgba(5, 179, 180, 0.1);
  border: 2px solid rgba(5, 179, 180, 0.3);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: center;
  font-weight: 600;
  transition: var(--transition-fast);
  text-decoration: none !important;
  color: var(--text-primary) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

a.subject-tag:hover {
  background: rgba(5, 179, 180, 0.2);
  border-color: rgba(5, 179, 180, 0.5);
  transform: scale(1.05);
  color: var(--text-primary) !important;
  text-decoration: none !important;
}

/* ===== STATS SECTION ===== */
.stats {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  text-align: center;
}

.stat-number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--vibrant-orange);
  display: block;
  margin-bottom: var(--spacing-xs);
  filter: drop-shadow(2px 2px 4px rgba(255, 122, 17, 0.3));
}

.stat-label {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.testimonial {
  position: relative;
}

.testimonial-content {
  font-style: italic;
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.author-image {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--turquoise);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

.author-info h4 {
  font-size: 1rem;
  margin-bottom: 0;
}

.author-info p {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: var(--text-muted);
}

/* ===== CTA SECTION ===== */
.cta {
  text-align: center;
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 122, 17, 0.1) 0%, rgba(5, 179, 180, 0.1) 50%, transparent 70%);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.cta>* {
  position: relative;
  z-index: 1;
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg-darker);
  padding: var(--spacing-lg) 0 var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(0, 50, 81, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--spacing-md);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 999;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  section {
    padding: var(--spacing-lg) 0;
  }

  .features-grid,
  .steps,
  .subjects-grid,
  .stats-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }
}