/* =======================
   :root – Theme Variables
   ======================= */
:root {
  --color-primary: #0056b3;
  --color-secondary: #0d6efd;
  --color-accent: #198754;
  --color-light: #f9f9f9;
  --color-dark: #212529;
  --color-text: #333333;
  --font-sans: "Helvetica Neue", Arial, sans-serif;
  --transition-speed: 0.25s;
}

/* ===========
   Global Reset
   =========== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-light);
  line-height: 1.6;
  font-size: 16px;
}

/* ========
   Navbar
   ======== */
.navbar {
  background-color: #ffffff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.navbar-brand img {
  border-radius: 50%;
}
.navbar-brand {
  font-weight: 700;
  color: var(--color-dark);
}
.navbar-nav .nav-link {
  color: var(--color-text);
  padding: 0.5rem 1rem;
  transition: color var(--transition-speed);
}
.navbar-nav .nav-link:hover {
  color: var(--color-secondary);
}

/* ===========
   Section Base
   =========== */
section {
  padding: 60px 0;
}
section h2 {
  font-size: 1.875rem;
  margin-bottom: 1rem;
  font-weight: 700;
  text-align: center;
}
section.bg-light {
  background-color: #ffffff;
}
section.bg-white {
  background-color: #ffffff;
}
.arrow {
    font-size: 2rem;
    color: yellow;
    animation: bounce 1s infinite;
    position: relative;
    top: 0;
    margin-bottom: 10px;
  }

  @keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
  }
/* ============
   Home Section
   ============ */
#home {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  color: #fff;
  text-align: center;
}
#home h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
#home p {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}
#home .btn {
  background-color: #fff;
  color: var(--color-secondary);
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  transition: background var(--transition-speed), color var(--transition-speed);
}
#home .btn:hover {
  background-color: #e9ecef;
}

/* =======
   Cards
   ======= */
.card {
  border: none;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}

/* =================
   Feedback Section
   ================= */
#feedback .card {
  text-align: center;
  padding: 1.5rem;
}
#feedback .card img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border: 3px solid var(--color-secondary);
  margin-bottom: 1rem;
  border-radius: 50%;
}
#feedback .text-warning {
  color: #ffc107 !important;
  font-size: 1.125rem;
}

/* ========
   Courses
   ======== */
.enroll {
  display: inline-block;
  background-color: var(--color-secondary);
  color: #fff;
  border: none;
  border-radius: 30px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  transition: background var(--transition-speed);
}
.enroll:hover {
  background-color: var(--color-primary);
}

/* =============
   Contact Form
   ============= */
.contact-form {
  background-color: #ffffff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border: 1px solid #ced4da;
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 0.2rem rgba(13,110,253,0.25);
}
.contact-form button {
  display: inline-block;
  background-color: var(--color-accent);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  transition: background var(--transition-speed);
}
.contact-form button:hover {
  background-color: #146c43;
}

/* ===================
   Privacy & Footer
   =================== */
#privacy p {
  margin-bottom: 1rem;
  font-size: 0.95rem;
}
#privacy a {
  color: var(--color-secondary);
  text-decoration: underline;
}
footer {
  background-color: var(--color-dark);
  color: #adb5bd;
  padding: 1rem 0;
  font-size: 0.875rem;
  text-align: center;
}
footer a {
  color: #ffc107;
  text-decoration: none;
}
footer a:hover {
  text-decoration: underline;
}

/* ======================
   Responsive Adjustments
   ====================== */
@media (max-width: 768px) {
  #home h1 {
    font-size: 2rem;
  }
  .navbar-nav {
    text-align: center;
  }
  .row > [class*="col-"] {
    margin-bottom: 1.5rem;
  }
}