/* --- Roadmap Header Polish --- */
/* SECTION CONTAINER */
.intro-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
    min-height: 90vh;
     padding-top: calc(var(--spacing-xxl) + 60px);
    transition: background 0.3s ease, color 0.3s ease;
  }
  
  .intro-section .container {
    display: flex;
    flex-wrap: wrap;
    max-width: 1200px;
    gap: var(--spacing-xxl);
    align-items: center;
  }
  
  /* LEFT SIDE */
  .intro-left {
    flex: 1;
    min-width: 320px;
    animation: fadeInLeft 1s ease forwards;
  }
  
  .intro-left .section-title {
    font-size: 3rem;
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-md);
    color: var(--accent-color);
    line-height: 1.2;
  }
  
  .intro-left .section-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
  }
  
  /* STEPS LIST */
  .steps-list {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-xl);
  }
  
  .step-item {
    display: flex;
    align-items: center;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.35s ease;
    cursor: default;
  }
  
  .step-item:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0,170,255,0.2);
    border-left: 4px solid var(--accent-color);
  }
  
  .step-icon {
    font-size: 1.75rem;
    margin-right: var(--spacing-md);
  }
  
  /* RIGHT SIDE - ANIMATION CARD */
  .intro-right {
    flex: 1;
    min-width: 320px;
    position: relative;
  }
  
  .animation-card {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 400px;
    margin: auto;
    perspective: 1000px;
  }
  
  /* FLOATING PYTHON LOGO */
  .floating-img {
    width: 130px;
    animation: float 5s ease-in-out infinite;
    position: absolute;
    top: 40%;
    left: 40%;
    z-index: 10;
    transition: transform 0.3s ease;
  }
  
  .floating-img:hover {
    transform: rotateY(20deg) rotateX(10deg) scale(1.1);
  }
  
  /* FLOATING CIRCLES */
  .floating-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.25;
    animation: floatCircle 6s ease-in-out infinite;
  }
  
  .circle1 {
    width: 100px;
    height: 100px;
    background: var(--accent-color);
    top: 10%;
    left: 5%;
  }
  
  .circle2 {
    width: 60px;
    height: 60px;
    background: var(--accent-secondary);
    bottom: 10%;
    right: 10%;
  }
  
  .circle3 {
    width: 140px;
    height: 140px;
    background: var(--accent-color);
    top: 50%;
    right: 5%;
  }
  
  /* BUTTON */
  .btn-primary {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: white;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.35s ease;
    box-shadow: 0 6px 20px rgba(0,170,255,0.2);
  }
  
  .btn-primary:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 12px 30px rgba(0,170,255,0.4);
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-color));
  }
  
  /* ANIMATIONS */
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    25% { transform: translateY(-15px) translateX(5px); }
    50% { transform: translateY(-25px) translateX(-5px); }
    75% { transform: translateY(-15px) translateX(5px); }
  }
  
  @keyframes floatCircle {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(45deg); }
  }
  
  @keyframes fadeInLeft {
    0% { opacity: 0; transform: translateX(-50px); }
    100% { opacity: 1; transform: translateX(0); }
  }
  
  /* RESPONSIVE */
  @media (max-width: 1024px) {
    .intro-left .section-title { font-size: 2.5rem; }
    .intro-left .section-desc { font-size: 1.15rem; }
  }
  
  @media (max-width: 768px) {
    .intro-section .container { flex-direction: column; gap: var(--spacing-xl); }
    .intro-right { margin-top: var(--spacing-xl); }
  }
  /* SECTION CONTAINER */
.basics-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
    min-height: 90vh;
    transition: background 0.3s ease, color 0.3s ease;
  }
  
  .basics-section .container {
    display: flex;
    flex-wrap: wrap;
    max-width: 1200px;
    gap: var(--spacing-xxl);
    align-items: center;
  }
  
  /* LEFT SIDE */
  .basics-left {
    flex: 1;
    min-width: 320px;
    animation: fadeInLeft 1s ease forwards;
  }
  
  .basics-left .section-title {
    font-size: 3rem;
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-md);
    color: var(--accent-color);
    line-height: 1.2;
  }
  
  .basics-left .section-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
  }
  
  /* BASICS LIST */
  .basics-list {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-xl);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }
  
  .basics-item {
    display: flex;
    align-items: center;
    font-size: 1.125rem;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.35s ease;
  }
  
  .basics-item:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0,170,255,0.2);
    border-left: 4px solid var(--accent-color);
  }
  
  .item-icon {
    font-size: 1.5rem;
    margin-right: var(--spacing-md);
  }
  
  /* RIGHT SIDE - ANIMATION CARD */
  .basics-right {
    flex: 1;
    min-width: 320px;
    position: relative;
  }
  
  .animation-card {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 400px;
    margin: auto;
    perspective: 1000px;
  }
  
  /* FLOATING PYTHON LOGO */
  .floating-img {
    width: 130px;
    animation: float 5s ease-in-out infinite;
    position: absolute;
    top: 40%;
    left: 40%;
    z-index: 10;
    transition: transform 0.3s ease;
  }
  
  .floating-img:hover {
    transform: rotateY(20deg) rotateX(10deg) scale(1.1);
  }
  
  /* FLOATING CIRCLES */
  .floating-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.25;
    animation: floatCircle 6s ease-in-out infinite;
  }
  
  .circle1 {
    width: 100px;
    height: 100px;
    background: var(--accent-color);
    top: 10%;
    left: 5%;
  }
  
  .circle2 {
    width: 60px;
    height: 60px;
    background: var(--accent-secondary);
    bottom: 10%;
    right: 10%;
  }
  
  .circle3 {
    width: 140px;
    height: 140px;
    background: var(--accent-color);
    top: 50%;
    right: 5%;
  }
  
  /* BUTTON */
  .btn-primary {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: white;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.35s ease;
    box-shadow: 0 6px 20px rgba(0,170,255,0.2);
  }
  
  .btn-primary:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 12px 30px rgba(0,170,255,0.4);
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-color));
  }
  
  /* ANIMATIONS */
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    25% { transform: translateY(-15px) translateX(5px); }
    50% { transform: translateY(-25px) translateX(-5px); }
    75% { transform: translateY(-15px) translateX(5px); }
  }
  
  @keyframes floatCircle {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(45deg); }
  }
  
  @keyframes fadeInLeft {
    0% { opacity: 0; transform: translateX(-50px); }
    100% { opacity: 1; transform: translateX(0); }
  }
  
  /* RESPONSIVE */
  @media (max-width: 1024px) {
    .basics-left .section-title { font-size: 2.5rem; }
    .basics-left .section-desc { font-size: 1.15rem; }
    .basics-list { grid-template-columns: 1fr; }
  }
  
  @media (max-width: 768px) {
    .basics-section .container { flex-direction: column; gap: var(--spacing-xl); }
    .basics-right { margin-top: var(--spacing-xl); }
  }