/* Font Faces for Poppins */
@font-face {
  font-family: 'Poppins';
  src: url('./assets/fonts/Poppins-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
}
@font-face {
  font-family: 'Poppins';
  src: url('./assets/fonts/Poppins-Italic.ttf') format('truetype');
  font-weight: 400;
  font-style: italic;
}
@font-face {
  font-family: 'Poppins';
  src: url('./assets/fonts/Poppins-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
}
@font-face {
  font-family: 'Poppins';
  src: url('./assets/fonts/Poppins-BoldItalic.ttf') format('truetype');
  font-weight: 700;
  font-style: italic;
}
@font-face {
  font-family: 'Poppins';
  src: url('./assets/fonts/Poppins-ExtraBold.ttf') format('truetype');
  font-weight: 800;
  font-style: normal;
}
@font-face {
  font-family: 'Poppins';
  src: url('./assets/fonts/Poppins-ExtraBoldItalic.ttf') format('truetype');
  font-weight: 800;
  font-style: italic;
}

/* style.css - Main stylesheet based on style-guide.md */

:root {
  /* Primary Colors */
  --purple: hsl(259, 100%, 65%);
  --light-red: hsl(0, 100%, 67%);

  /* Neutral Colors */
  --white: hsl(0, 0%, 100%);
  --off-white: hsl(0, 0%, 94%);
  --light-grey: hsl(0, 0%, 86%);
  --smokey-grey: hsl(0, 1%, 44%);
  --off-black: hsl(0, 0%, 8%);

  /* Typography */
  --font-family: 'Poppins', Arial, Helvetica, sans-serif;
  --font-size-input: 32px;
}

body {
  font-family: var(--font-family);
  background: var(--off-white);
  color: var(--off-black);
  margin: 0;
  padding: 0;
}

input, select, textarea {
  font-family: var(--font-family);
  font-size: var(--font-size-input);
  color: var(--off-black);
  background: var(--white);
  border: 1px solid var(--light-grey);
  border-radius: 4px;
  padding: 0.5em 1em;
  outline: none;
  transition: border-color 0.2s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--purple);
}

label {
  color: var(--smokey-grey);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.button, button, input[type="submit"] {
  background: var(--purple);
  color: var(--white);
  font-family: var(--font-family);
  font-weight: 700;
  border: none;
  border-radius: 4px;
  padding: 0.75em 2em;
  cursor: pointer;
  transition: background 0.2s;
}

.button:hover, button:hover, input[type="submit"]:hover {
  background: var(--light-red);
}

.error {
  display: block;
  color: var(--light-red);
  font-size: 0.9em;
  font-style: italic;
  margin-top: 0.25em;
  min-height: 1.2em;
  visibility: visible;
}

.error:empty {
  visibility: hidden;
}

.age-calc-container {
  background: var(--white);
  max-width: 540px;
  margin: 4rem auto 2rem auto;
  border-radius: 24px 24px 120px 24px;
  box-shadow: 0 4px 32px 0 rgba(44, 44, 44, 0.10);
  padding: 2.5rem 2rem 3.5rem 2rem;
}

.age-calc-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.input-group {
  display: flex;
  gap: 1.5rem;
}

.input-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
  flex: 1 1 0;
}

.input-field label {
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  margin-bottom: 0.25rem;
}

.input-field input {
  font-size: var(--font-size-input);
  padding: 0.5em 0.75em;
  border-radius: 8px;
  border: 1.5px solid var(--light-grey);
  font-weight: 700;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.input-field input:focus {
  border-color: var(--purple);
}

.submit-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: -2.5rem;
  margin-bottom: 2.5rem;
}

.button {
  background: var(--purple);
  border-radius: 50%;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px 0 rgba(44, 44, 44, 0.10);
  border: none;
  transition: background 0.2s;
}

.button:hover, .button:focus {
  background: var(--off-black);
}

.arrow-icon {
  width: 32px;
  height: 32px;
}

.age-result {
  font-size: 3.5rem;
  font-weight: 800;
  font-style: italic;
  line-height: 1.1;
  color: var(--off-black);
  margin-top: 0.5rem;
}

.age-value {
  color: var(--purple);
  letter-spacing: 0.05em;
  font-style: italic;
  font-weight: 800;
}

.input-error {
  border-color: var(--light-red) !important;
}

@media (max-width: 375px) {
  body {
    font-size: 14px;
  }
  input, select, textarea {
    font-size: 20px;
  }
}

@media (min-width: 1440px) {
  body {
    font-size: 18px;
  }
  input, select, textarea {
    font-size: 32px;
  }
}

@media (max-width: 600px) {
  .age-calc-container {
    padding: 1.5rem 0.5rem 2.5rem 0.5rem;
    max-width: 95vw;
    border-radius: 16px 16px 80px 16px;
  }
  .age-result {
    font-size: 2.2rem;
  }
  .button {
    width: 56px;
    height: 56px;
  }
  .arrow-icon {
    width: 24px;
    height: 24px;
  }
}