/* =====================
   VARIABLES & RESET
   ===================== */
   :root {
    --clr-primary: #0077b6;
    --clr-secondary: #00b4d8;
    --clr-bg: #f4faff;
    --clr-white: #ffffff;
    --clr-text: #333333;
    --radius: 8px;
  }
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body {
    font-family: 'Inter', sans-serif;
    background: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
  }
  
  /* =====================
     CONTAINER & UTILITIES
     ===================== */
  .container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
  }
  
  /* =====================
     HEADER & NAV
     ===================== */
  .header {
    background: var(--clr-white);
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  }
  .logo {
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--clr-primary);
  }
  .nav {
    display: flex;
    gap: 1.5rem;
  }
  .nav a {
    text-decoration: none;
    color: var(--clr-text);
    font-weight: 500;
    position: relative;
    padding: 0.25rem;
  }
  .nav a.active,
  .nav a:hover {
    color: var(--clr-primary);
  }
  .nav a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--clr-primary);
  }
  
  /* Hamburger dla Mobile */
  .hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
  }
  .hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--clr-text);
  }
  
  /* =====================
     CONTACT SECTION
     ===================== */
  .contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 3rem 0;
  }
  .contact-card {
    background: var(--clr-white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  }
  .info-card h2,
  .form-card h2 {
    margin-bottom: 1rem;
    color: var(--clr-primary);
  }
  .form-card input,
  .form-card textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: var(--radius);
    font-size: 1rem;
  }
  .form-card input:focus,
  .form-card textarea:focus {
    outline: none;
    border-color: var(--clr-secondary);
    box-shadow: 0 0 5px rgba(0,180,216,0.3);
  }
  .btn {
    display: inline-block;
    text-decoration: none;
    border: none;
    cursor: pointer;
    border-radius: var(--radius);
    font-weight: 500;
  }
  .btn--primary {
    background: var(--clr-secondary);
    color: var(--clr-white);
    padding: 0.75rem 1.5rem;
    transition: background 0.3s;
  }
  .btn--primary:hover {
    background: var(--clr-primary);
  }
  .btn--link {
    margin-top: 1rem;
    display: inline-block;
    color: var(--clr-secondary);
    transition: color 0.3s;
  }
  .btn--link:hover {
    color: var(--clr-primary);
  }
  
  /* =====================
     FOOTER
     ===================== */
  .footer {
    text-align: center;
    padding: 1rem 0;
    background: var(--clr-white);
    color: var(--clr-text);
    font-size: 0.9rem;
    border-top: 1px solid #eaeaea;
  }
  
  /* =====================
     RESPONSIVE
     ===================== */
  @media (max-width: 768px) {
    .contact-wrapper {
      grid-template-columns: 1fr;
    }
    .header-inner {
      flex-direction: column;
      gap: 1rem;
    }
    .nav {
      display: none;
      flex-direction: column;
      width: 100%;
      text-align: center;
    }
    .nav.active {
      display: flex;
    }
    .hamburger {
      display: flex;
    }
  }