@font-face {
  font-family: 'heading-now';
  src: url('https://www.dafont.com/heading-now.font') format('truetype');
}

@font-face {
  font-family: 'heading-now-semibold';
  src: url(https://www.dafont.com/heading-now.fontsemiBold.ttf') format('truetype');
}

:root {
  --blue: #345ff6;
  --gunmetal: #253347;
  --dark-electric-blue: #000000;
  --borders: #d8e2e7;
  --white: #fff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: #fff;
  font-family: 'heading-now';
  font-size: 18px;
  line-height: 1.5;
  max-width: 100vw;
}

h1@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap');

body {
  margin: 0;
  padding: 0;
  background-color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: 'Inter', sans-serif;
  text-align: center;
}

.typewriter {
  overflow: hidden;
  white-space: nowrap;
  font-size: 4vw;         /* Responsive size: adjusts with screen */
  font-weight: 700;
  letter-spacing: 1px;
  animation: typing 3s steps(30, end) forwards;
  max-width: 90vw;
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}




h2 {
  color: var(--gunmetal);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -1.6px;
  margin-bottom: 32px;
}

h3 {
  color: var(--gunmetal);
  font-size: 24px;
  letter-spacing: -1.2px;
  font-weight: 600;
  line-height: normal;
}

h4 {
  color: var(--gunmetal);
  font-size: 20px;
  letter-spacing: -1px;
  line-height: normal;
}

p {
  color: var(--dark-electric-blue);
}

img {
  display: block;
  max-width: 100%;
}

input[type='number']::-webkit-inner-spin-button,
input[type='number']::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.container {
  max-width: 686px;
  margin: 0 auto;
}

.header {
  padding: 32px 24px 72px 24px;
  text-align: center;
  position: relative;
}

body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 640px;
  background: var(
    --gradient-1,
    linear-gradient(315deg, #90e0ef 100%, rgba(214, 252, 254, 0) 100%)
  );
  border-radius: 35px;
  z-index: -1;
}

.header h1 {
  margin-block: 24px;
}

.header .logo {
  width: 40px;
  margin: 0 auto;
}

.header .container {
  position: relative;
}

.bmi {
  display: none;
  align-items: center;
  justify-content: space-between;
}

.calculator {
  background: #fff;
  margin-top: 7px;
  padding: 5px;
  border-radius: -1px;
  box-shadow: 16px 32px 56px 0px rgba(143, 174, 207, 0.25);
  text-align: left;
  position: absolute;
  width: 100%;
  margin-bottom: 72px;
}

.calculator .units {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 24px;
  width: 100%;
  font-weight: 600;
}

.calculator .units .form-control label {
  font-weight: 600;
}

.calculator .imperial .form-control {
  margin-bottom: 16px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 23px;
  margin-bottom: 8px;
}

input[type='radio'] {
  margin-right: 18px;
  width: 31px;
  height: 31px;
  cursor: pointer;
  border: 1px solid #d8e2e7;
  border-radius: 50%;
  appearance: none;
}

input[type='radio']:not(.active):hover {
  border: 1px solid var(--blue);
}

input[type='radio'].active {
  appearance: none;
  height: 31px;
  width: 31px;
  border-radius: 50%;
  background-color: hsla(227, 92%, 58%, 0.15);
  position: relative;
}

input[type='radio'].active::after {
  content: '';
  width: 16px;
  height: 16px;
  background-color:#013c8a;
  opacity: 1;
  border-radius: 50%;
  z-index: 100;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.units .form-control {
  width: 100%;
  display: flex;
  align-items: center;
}

.form .infos label {
  margin-bottom: 20px;
  font-size: 14px;
}

.form .infos input {
  width: 100%;
  padding: 20px 24px;
  border-radius: 12px;
  border: 1px solid #d8e2e7;
  font-size: 24px;
}

.form .infos input:focus {
  outline: 0;
  border: 1px solid #013c8a);
}

.form .infos .input-container {
  position: relative;
}

.form .infos .input-container input::placeholder {
  color: var(--dark-electric-blue);
  opacity: 0.25;
  font-weight: 600;
}

.form .unit-height,
.form .unit-weight {
  color:#013c8a;
  font-weight: 600;
  position: absolute;
  top: 54%;
  transform: translateY(-50%);
  right: 24px;
  font-size: 24px;
  letter-spacing: -1.2px;
}

.metric {
  display: block;
}

.metric.flex {
  display: flex;
}

.metric.none {
  display: none;
}

.form .metric .form-control label {
  display: block;
  margin-bottom: 8px;
  color: var(--dark-electric-blue);
}

.imperial .container-flex {
  display: flex;
  gap: 24px;
}

.header .metric .form-control {
  width: 100%;
  margin-bottom: 16px;
}

.imperial {
  display: none;
}

.form .imperial .form-control label {
  display: block;
  margin-bottom: 8px;
  color: var(--dark-electric-blue);
}

.imperial .form-control small {
  color:#013c8a;
  position: absolute;
  right: 10px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -1.2px;
}

.imperial .form-control .input-container {
  display: flex;
  align-items: center;
  position: relative;
  width: 100%;
}

.imperial .form-control .input-container input {
  padding: 20px 24px;
}

.container-result {
  background: linear-gradient(90deg,  #023e8a 100%,  #023e8a 100%);
  padding: 32px;
  color: #fff;
  border-radius: 0px;
}

.container-result .bmi {
  flex-direction: column;
  text-align: left;
  align-items: flex-start;
}


.container-result .welcome-text h3 {
  color: #fff;
  margin-bottom: 16px;
  line-height: normal;
}

.container-result >  {
  color: #fff;
}

.container-result p {
  color: #fff;
  font-size: 14px;
}

.container-result #min-weight, 
.container-result #max-weight {
  color: #fff;
  font-weight: 700;
}

.container-result .result {
  font-size: 48px;
  line-height: 1.1;
  margin-block: 8px 24px;
  text-align: left;
}

.container-result .result-heading {
  font-size: 16px;
}

.container-result .result-heading .result {
  font-size: 48px;
}

.container-result > p {
  font-size: 14px;
}

/* Explanation */

.explanation {
  width: 100%;
  margin: 0 auto;
  padding-inline: 24px;
  margin-bottom: 127.5px;
  margin-top: 657px;
}

.explanation .curve-left {
  display: none;
}

.explanation h2 {
  margin-block: 48px 32px;
}

/* Habits */

.positive-habits {
  background: var(
    --gradient-1,
    linear-gradient(
      315deg,
      rgba(214, 230, 254, 0.25) 0%,
      rgba(214, 252, 254, 0) 100%
    )
  );
  margin: 0 auto;
  padding-inline: 20px 29px;
  padding-bottom: 56px;
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-bottom: 72px;
}

.positive-habits img {
  margin-bottom: 32px;
}

.positive-habits h3 {
  margin-bottom: 24px;
  font-weight: 600;
}

/* Limitations */

.limitations {
  padding-inline: 24px;
  margin-bottom: 96px;
}

.limitations .curve {
  display: none;
  position: absolute;
}

.limitations-content {
  text-align: center;
}

.card {
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 16px 32px 56px 0px rgba(143, 174, 207, 0.25);
}

.card-heading {
  display: flex;
  align-items: center;
  gap: 33px;
  margin-bottom: 50px;
}

.cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 56px;
}
/* Footer Styles */
footer {
  background-color: transparent;
  padding: 1rem 0;
  text-align: center;
  margin-top: auto;
  font-family: 'Inter', sans-serif;
}

footer a {
  color: #0f0f0f;
  text-decoration: none;
  margin: 0.2rem;
  font-size: 1rem;
  transition: color 0.3s ease;
}

footer a:hover {
  color: #1d4ed8;
  text-decoration: underline;
}

footer small {
  display: block;
  margin-top: 16px;
  color: var(--dark-electric-blue);
  font-size: 12px;
}

@media (min-width: 768px) {
  .container {
    max-width: 1000px;
  }

  .header {
    padding: 32px 43px 72px 39px;
  }

  .header .calculator {
    padding: 32px;
    margin-top: 40px;
  }

  .header .container-result {
    border-top-right-radius: 100px;
    border-bottom-right-radius: 100px;
    padding: 32px;
  }

  .header .result-heading {
    max-width: 436px;
  }

  .header .container-result .result-heading {
    width: 50%;
  }

  .header .container-result .result-text {
    width: 50%;
    text-align: left;
  }

  .header .container-result .result-text p {
    max-width: 276px;
  }

  .header .form {
    margin-bottom: 16px;
  }

  .header .container-result .result {
    font-size: 64px;
    margin: 0;
    margin-top: 8px;
    font-weight: 600;
    line-height: 1.1;
  }

  .header .container-result .bmi {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
  }

  .header .metric {
    display: flex;
    justify-content: space-between;
    gap: 24px;
  }

  .metric.flex {
    display: flex;
  }

  .header .imperiall .form-control {
    width: 100%;
  }

  .explanation {
    display: flex;
    align-items: center;
    padding-inline: 39px 43px;
    margin-top: 628px;
  }

  .explanation .image {
    min-width: 361px;
    max-width: 564px;
    height: 411px;
    align-self: flex-end;
    transform: translateX(-75px);
  }

  .explanation img {
    width: 100%;
    height: 100%;
  }

  .explanation .content {
    width: 50%;
    min-width: 331px;
    max-width: 465px;
    justify-self: center;
  }

  /* Habits */

  .positive-habits {
    padding-inline: 39px 43px;
    border-radius: 16px;
  }

  .positive-habits > div {
    display: flex;
    gap: 40px;
    align-items: center;
  }

  .positive-habits img {
    margin-bottom: 0px;
  }

  /* Limitations */

  .limitations {
    padding: 5px 10px;
  }

  .limitations-content {
    max-width: 1000px;
    margin: 0 auto;
  }

  .limitations .cards {
    display: flex;
    justify-content: center;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 15px;
  }

  .card {
    max-width: 336px;
    padding: 32px;
  }
}

@media (min-width: 1440px) {
  .container {
    max-width: 1392px;
  }

  .content h1 {
    font-size: 64px;
    letter-spacing: -3.2px;
    margin-block: 35px;
  }

  h2 {
    font-size: 48px;
  }

  .header {
    padding-block: 75px 0;
    padding-inline: 116px;
  }

  .header .logo {
    width: 64px;
    margin: 0;
    margin-bottom: 131px;
  }

  .header .content {
    max-width: 465px;
  }

  body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 24px;
    width: 60%;
    min-width: 978px;
    height: 737px;
    background: var(
      --gradient-1,
      linear-gradient(315deg, #d6e6fe 0%, rgba(214, 252, 254, 0) 100%)
    );

    border-radius: 35px;
    z-index: -1;
  }

  .header .container {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    text-align: left;
    gap: 131px;
    margin: 0;
  }

  .header .form {
    gap: 32px;
    margin-bottom: 16px;
  }
  .container-result .result-heading {
    font-size: 16px;
  }

  .form .infos .form-control:first-of-type {
    margin: 0;
  }

  .form .infos .imperial .form-control:first-of-type {
    margin: 0;
    margin-bottom: 24px;
  }

  #welcome {
    font-size: 14px;
  }

  .header .calculator {
    width: 564px;
    margin-top: 106px;
    top: 92px;
    left: 51.23%;
    margin: 0;
  }

  .explanation {
    justify-content: space-between;
    gap: 131px;
    padding-inline: 116px;
    position: relative;
    margin: 0;
    margin-top: 50px;
  }

  .explanation .curve-left {
    display: block;
    position: absolute;
    width: 85px;
    height: 200px;
    top: -32px;
    right: 143px;
  }

  .explanation .content {
    margin-top: 85px;
  }

  .explanation h2 {
    margin-top: 56px;
  }

  .explanation .image {
    transform: translate(0);
    height: 533px;
    width: 564px;
  }

  .positive-habits {
    flex-direction: row;
    margin-bottom: 120px;
    padding: 72px 116px 96px 116px;
    max-width: 1392px;
    margin: 96px auto 120px auto;
    border-radius: 35px;
    gap: 32px;
  }

  .positive-habits > div {
    flex-direction: column;
    align-items: flex-start;
    gap: 45px;
    width: 365px;
  }

  .limitations {
    text-align: left;
    position: relative;
    margin: 70px 0;
    padding-block: 0;
    padding-inline: 116px;
  }

  .limitations .curve {
    display: block;
    position: absolute;
    width: 94px;
    height: 122px;
    top: 251px;
    left: 281px;
  }

  .limitations-content {
    text-align: left;
    margin: 0;
    margin-bottom: 60px;
    width: 564px;
  }

  .limitations .cards {
    margin-top: 80px;
    justify-content: flex-end;
    gap: 24px;
    padding-left: 32px;
  }

  .card {
    max-width: 365px;
  }

  .card.gender {
    position: absolute;
    top: 0;
    right: 215px;
    /* left: 796px; */
    height: 232px;
  }

  .card.age {
    height: 184px;
    z-index: 1;
  }

  .card.muscle {
    height: 184px;
    z-index: 1;
    margin-left: 8px;
  }

  .card.pregnancy {
    transform: translateX(-206px);
    z-index: 1;
    height: 232px;
  }

  .card.race {
    transform: translate(-199px);
    z-index: 1;
    height: 232px;
  }
  
}