* {
    box-sizing: border-box;
    scroll-behavior: smooth;
  }

  :root {
    --text-color: #F5F8F3;
    --sc-txtcolor: #365194;
    --main-color: black;
  }

  body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
  }

  /* navbar*/

  nav {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 20% 0.1% 16%;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.8);
    height: 72px;
  }

  .bgColor {
    background-color: #325494;
    transition: all 1s;
    height: 72px;
  }

  .menu-btn, .menu-icon {
    display: none;
  }

  .bar {
    display: flex;
    align-items: center;
  }

  .bar a {
    font-size: 1rem;
    margin-right: 20px;
    color: var(--text-color);
    text-decoration: none;
    font-weight: bolder;
  }

  .bar button{
    background-color: #F39F15;
    border-radius: 4px;
    border: none;
    height: 26px;
    align-items: center;
    justify-content: center;
  }

  /* Yazıların olduğu orta kısım */
  #home {
    background-image: url(images/hero-man.jpg);
    background-size: cover;
    background-position: center;
  }

  .home {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-color);
    padding: 12rem 20% 2% 16%;
  }

  .power {
    background-color: #325494;
    border-radius: 4px;
    border: none;
    height: 40px;
    color: var(--text-color);
    width: 10rem;
    text-shadow: 2px 2px 4px #000000;
    font-weight: bolder;
    text-align: center;
    padding-top: 0.6rem;
    font-size: 1.5rem;
    align-items: center;
    justify-content: center;
  }

  .container h1 {
    font-size: 80px;
    font-weight: 00;
  }

  .container > p {
    background-color: rgba(0, 0, 0, 0.5);
    font-size: 23px;
    font-weight: 700;
    padding: 1rem ;
  }

  .sign {
    background-color: #355592;
    border-radius: 4px;
    border: none;
    width: 7rem;
    height: 3rem;
    color: var(--text-color);
    font-size: 15px;
    font-weight: 800;
  }

  .details {
    border-radius: 4px;
    border: 2px solid white;
    background-color: rgba(0, 0, 0, 0.5);
    height: 3rem;
    width: 7rem;
    color: var(--text-color);
    font-size: 15px;
    font-weight: 700;
    margin-left: 2rem;
  }

  /* box kısmı */
  .flex-container {
    display: flex;
    background-color: #F1F8FF;
    flex-direction: row;
    justify-content: center;
    padding: 1.5rem;
  }

  .flex-container > div {
    background-color: white;
    margin: 10px;
    padding: 20px;
    font-size: 30px;
    width: 15rem;
    height: 7rem;
  }

  .flex-container > div > p {
    color: var(--sc-txtcolor);
    font-weight: 800;
    text-align: center;
    font-size: 1rem;
  }

  .flex-container > div > p > span {
    color: black;
    font-weight: 800;
  }

  /* section 2 */

  .classes {
    position: relative;
  }

  .class-container {
    padding-bottom: 5%;
    width: 60%;
    margin: auto;
  }

  .bg-shape {
    position: absolute;
    right: 0;
    z-index: -1;
    height: 100%;
    width: 60%;
    clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 25% 100%, 12.5% 50%);
    background: #F6F6F6;
  }

  .class-container h2 {
    padding-top: 2rem;
    text-align: center;
    color: var(--sc-txtcolor);
    font-weight: 700;
  }

  .line {
    border: solid 3px #F39F15;
    color : #F39F15;
    width: 8%;
    margin: auto;
    border-radius: 100px;
    margin-top: 1rem;
    margin-bottom: 1rem;
  }

  .classes p {
    text-align: center;
    color: var(--main-color);
    font-weight: 700;
  }

  .button-container{
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap:10%;
  }

  .button-container button{
    background-color: var(--sc-txtcolor);
    color: var(--text-color);
    font-weight: 800;
    border-radius: 5px;
    width: 100px;
    height: 50px;
    margin-top: 2rem;
    border: none;
  }

  .classes button:hover {
    background-color: #F39F15;
  }

  #features-container {
    padding-top: 1.5rem;
    display: flex;
    gap:10%;
    align-items: center;
  }

  #features-container h6 {
    padding-top: 2rem;
    font-weight: 800;
    text-align: start;
    font-size: 1.5rem;
  }

  #features-container p {
    font-weight: 600;
    text-align: start;
    margin-top: 1.5rem;
  }

  #features-container img {
    width: 50%;
  }

  /* Section 2 BMI */

  .bmi-container {
    display: flex;
    width: 75%;
    margin: auto;
    gap: 10%;
    padding-bottom: 2rem;
  }

  .calculate-container {
    width: 50%;
    margin: auto;
  }

  .calculate-container h1 {
    color: var(--sc-txtcolor);
    font-weight: 800;
  }

  .calculate-container p{
    font-weight: 700;
    text-align: start;
  }

  .calculate-container input{
    border-radius: 5px;
    border: 2px solid black;
  }

  .calculate-container span{
    padding-left: 0.3rem;
  }

  .img-container img {
    width: 100%;
  }
  
  .img-container {
    text-align: center;
    position: relative;
  }

  .triangle {
    position:absolute;
    width: 0;
    height: 0;
    border: 15px solid transparent;
    border-top: 0;
    border-bottom: 30px solid #F39F15;
    left:6%;
  }

  /* Section 3 Trainer */

  .trainer-container {
    background-color: #F1F8FF;
    padding-top: 2rem;
    padding-bottom: 2rem;
  }

  .trainer-container h2 {
    text-align: center;
    color: var(--sc-txtcolor);
    font-weight: 700;
  }

  .trainer-container p {
    text-align: center;
    color: var(--main-color);
    font-weight: 700;
  }
  
  .trainers-container {
    padding-top: 2rem;
    display: flex;
    gap:5rem;
    width: 60%;
    margin: auto;
  }

  .trainers-container img {
    width: 100%;
    border: #F39F15 2px solid;
    border-radius: 10px;
    transition: .5s ease;
    opacity: 1;
    backface-visibility: hidden;
    position: relative;
  }
  
  .trainer-portfolio::after {
    position: absolute;
    clip-path: inset(0 95% 0 0);  
    content: "";
    background-color: #325494;
    width: 10rem;
    height: 7rem;
    top: 30%;
    transition: .5s ease;
  }

  .trainer-portfolio::before {
    position: absolute;
    content: "";
    clip-path: inset(0 0 0 95%); 
    background-color: #325494;
    width: 10rem;
    height: 7rem;
    top: 30%;
    right: 100%;
    transition: .5s ease;
  }
  
  .stick{
    position: absolute;
    clip-path: inset(0 0 95% 0);  
    content: "";
    background-color: #325494;
    width: 7rem;
    height: 10rem;
    top: -2.5%;
    left: 28%;
  }

  .stick-bottom {
    position: absolute;
    clip-path: inset(0 0 95% 0);  
    content: "";
    background-color: #325494;
    width: 7rem;
    height: 10rem;
    top: 100%;
    left: 28%;
  }
  
  .trainer-portfolio {
    position: relative;
  }

  .trainer-layer {
    position: absolute;
    transition: .5s ease;
    opacity: 0;
    top:80%;
    left:50%;
    transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    text-align: center;
    background-color: var(--sc-txtcolor);
    font-size: 16px;
    padding: 2px 2px;
    color:white;
    width:60%
  }
  
  .trainer-portfolio:hover .trainer-layer {
    opacity: 1;
  }
  
  .trainer-portfolio:hover::after {
    height: 12rem;
  }
  
  .trainer-portfolio:hover::before {
    height: 12rem;
  }
  
  .trainer-layer p {
    color:white;
  }

  /* Section 3 Purchase */
  .purchase-container {
    padding-top: 3rem;
    padding-bottom: 2rem;
  }
  
  .purchase-container h2 {
    text-align: center;
    color: var(--sc-txtcolor);
    font-weight: 700;
  }
  
  .purchase-container p {
    text-align: center;
    color: var(--main-color);
    font-weight: 700;
  }
  
  .equipment-container {
    padding-top: 2rem;
    display: flex;
    gap: 1.5rem;
    width: 70%;
    margin: auto;
  }
  
  .equipment-card {
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
  }
  
  .equipment-card:hover {
    transform: scale(1.05);
  }

  .equipment-card:hover .trainer-layer {
    opacity: 1;
  }
  
  .equipment-card:hover::after {
    height: 12rem;
  }
  
  .equipment-card:hover::before {
    height: 12rem;
  }

  .equipment-card img {
    width: 100%;
    border-bottom: 1px solid #ccc;
  }
  
  .card-layer {
    text-align: center;
    padding-bottom: 1%;
  }
  
  .card-layer p > span {
    text-decoration: line-through;
  }
  
  .card-layer p > i {
    float: left;
  }
  
  
  /* Review Section 4*/

  .review-container {
    background-color: #F1F8FF;
    padding-top: 3rem;
  }
  
  .review-container h2 {
    text-align: center;
    color: var(--sc-txtcolor);
    font-weight: 700;
  }
  
  .review-container p {
    text-align: center;
    color: var(--main-color);
    font-weight: 700;
  }
  
  .client-container {
    display: flex;
    width:70%;
    margin: auto;
    gap :5rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
  
  .client-container p > span {
    font-weight: 800;
  }

  .client {
    display: flex;
    gap:0.5rem;
    padding-bottom: 1rem;
  }

  .client img {
    border-radius: 50%;
    width: 60px;
  }
  
  .comment {
    position: relative;
    background-color: rgba(53, 85, 146, 1);
  }

  .comment::after {
    position: absolute;
    content: "";
    clip-path: polygon(100% 0, 1% 0, 100% 100%);
    background-color: #788ec2a1;
    width: 2rem;
    height: 2rem;
    top: 100%;
    left: 0;
  }

  .comment::before {
    position: absolute;
    content: "";
    clip-path: polygon(0 0, 0 100%, 100% 0);
    background-color: #788ec2a1;
    width: 2rem;
    height: 2rem;
    top: 100%;
    right: 0;
  }

  .comment p {
    color: #ffff;
    font-weight: 500;
    padding: 1rem;
  }

  /* Section 4 Contact */

  .contact-container {
    padding-top:1rem;
  }

  .contact-container h2 {
    text-align: center;
    color: var(--sc-txtcolor);
    font-weight: 700;
  }

  .contact-container p {
    text-align: center;
    color: var(--main-color);
    font-weight: 700;
  }

  .message-container{
    display: flex;
    width:60%;
    margin: auto;
    gap :5rem;
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .input-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .input-container input,textarea {
    background-color: #F1F8FF;
    border-radius: 5px;
  }

  .input-container textarea {
    resize: none; 
}

  .google-map iframe {
    width:150%;
    height: 100%;
  }

  /* Footer*/
  footer {
    background-color: var(--sc-txtcolor);
  }

  .footer {
    display: flex;
    width: 70%;
    margin: auto;
    flex-direction: column;
    color: white;
    padding-bottom: 1rem;
  }
  
  .footer-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    width: 60%;
    margin: auto;
  }
  
  .footer-container a {
    text-decoration: none;
    color: white;
  }

  .info {
    display: flex;
    flex-direction: column;
  }

  .links {
    display: flex;
    flex-direction: column;
  }

  #height {
    border: 1px solid rgba(0, 0, 0, 0.2); 
    transition: border-color 0.5s ease; 
    margin-right: 0.43rem;
  }

  #height:hover, #weight:hover {
    border-color: rgb(7, 91, 102); 
  }
  
  #weight {
    border: 1px solid rgba(0, 0, 0, 0.2); 
    transition: border-color 0.5s ease; 
    margin-right: 0.43rem;
  }
  
  #textname, #ymail {
    border: 1px solid rgba(0, 0, 0, 0.2); 
    transition: border-color 0.5s ease; 
    margin-right: 0.43rem;
  }
  
  #textname:hover, #ymail:hover {
    border-color: rgb(0, 0, 0); 
  }

  /* Responsive */
  @media screen and (max-width: 576px) {
    .menu-btn {
        display: none;
    }

    .menu-icon {
        display: block;
        font-size: 3rem;
        color: var(--text-color);
        cursor: pointer;
    }

    .bar {
        position: absolute;
        transform: translateY(-400px);
    }

    .navbar-container {
        padding:5%;
    }

    .menu-btn:checked ~ .bar {
        display: grid;
        justify-content:end;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        box-shadow: 0 0.5rem 1rem rgba(255, 255, 255, 0.2);
        transform: translateY(0);
        transition: 0.2s linear;
    }

    .menu-btn:checked ~ .bar a {
        font-size: 1rem;
        margin: 2rem 0;
    }

    .home {
        padding: 9rem 0% 9% 0%;
    }

    .sign {
        width: 100%;
        display: block;
    }

    .details {
        margin-left: 0;
        margin-top: 0.5rem;
        display: block;
        width: 100%;
    }

    .flex-container{
        display: block;
        width: 100%;
    }
  
    .flex-container > div {
        display: block;
        width: 100%;
    }
  
    .class-container {
        display: block;
        width: 90%;
    }
  
    #features-container {
        display: block;
        width: 100%;
    }
  
    #features-container img {
        display: block;
        width: 100%;
    }
    
    .bmi-container {
        display: block;
        width: 100%;
    }
  
    .calculate-container {
        width: 90%;
    }
    .img-container {
        display: block;
        width: 100%;
        padding-top: 2rem;
    }
    .img-container img  {
        display: block;
        width: 100%;
    }
    .trainer-container {
        display: block;
        width: 100%;
    }
  
    .trainers-container {
      display: block;
      width: 60%;
    }
  
    .trainer-portfolio {
      display: block;
      width: 100%;
      margin-bottom: 5rem;
    }
  
    .purchase-container {
        display: block;
        width: 100%;
    }
  
    .equipment-container {
        display: block;
        width: 80%;
    }
    
    .equipment-card {
        margin-bottom: 2rem;
    }
  
    .review-container {
        display: block;
        width: 100%;
    }
  
    .client-container {
        display: block;
        width: 90%;
        padding-bottom: 0.5rem;
    }

    .review {
        margin-bottom: 4rem;
    }
  
    .message-container {
        display: block;
        width: 80%;
    }
  
    .footer {
        display: block;
        width: 90%;
    }
    
    .footer-container {
        display: flex;
        width: 90%;
    }
  
    .google-map iframe {
      padding-top: 2rem;
      width: 100%;
    }
  }