:root {
  --r-blue: #2d3c4b;
  --r-blue-10: #e5e5e9;
  --r-blue-25: #bec1c7;
  --r-blue-60: #737986;
  --c-aqua: #03e4f8;
  --c-aqua-10: #f2f8fa;
  --c-aqua-25: #ddedf1;
  --c-aqua-60: #a7d5dc;
  --u-gold: #ffa600;
  --white: #fff;
  --black: #1d1d1d;

  --success: #05ff76;
  --error: #e23500;

  --i-width: calc(8 / 28);
  --copy-font: 'IBM Plex Serif', sans-serif;
  --copy-size: 11pt;
  --link-color: var(--c-aqua);

  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
}

/* @link https://utopia.fyi/type/calculator?c=320,16,1.2,1240,20,1.2,7,2,480&s=0.75|0.5|0.25,1.5|2|3|4|6,s-l&g=s,l,xl,12 */

:root {
  --step--2: clamp(0.6944rem, 0.6341rem + 0.3019vw, 0.8681rem);
  --step--1: clamp(0.8333rem, 0.7609rem + 0.3623vw, 1.0417rem);
  --step-0: clamp(1rem, 0.913rem + 0.4348vw, 1.25rem);
  --step-1: clamp(1.2rem, 1.0957rem + 0.5217vw, 1.5rem);
  --step-2: clamp(1.44rem, 1.3148rem + 0.6261vw, 1.8rem);
  --step-3: clamp(1.728rem, 1.5777rem + 0.7513vw, 2.16rem);
  --step-4: clamp(2.0736rem, 1.8933rem + 0.9016vw, 2.592rem);
  --step-5: clamp(2.4883rem, 2.2719rem + 1.0819vw, 3.1104rem);
  --step-6: clamp(2.986rem, 2.7263rem + 1.2983vw, 3.7325rem);
  --step-7: clamp(3.5832rem, 3.2716rem + 1.5579vw, 4.479rem);
}

/* @link https://utopia.fyi/space/calculator?c=320,18,1.2,1240,20,1.25,5,2,&s=0.75|0.5|0.25,1.5|2|3|4|6|7|12,xs-5xl&g=s,l,xl,12 */

:root {
  --space-3xs: clamp(0.3125rem, 0.3125rem + 0vw, 0.3125rem);
  --space-2xs: clamp(0.5625rem, 0.5408rem + 0.1087vw, 0.625rem);
  --space-xs: clamp(0.875rem, 0.8533rem + 0.1087vw, 0.9375rem);
  --space-s: clamp(1.125rem, 1.0815rem + 0.2174vw, 1.25rem);
  --space-m: clamp(1.6875rem, 1.6223rem + 0.3261vw, 1.875rem);
  --space-l: clamp(2.25rem, 2.163rem + 0.4348vw, 2.5rem);
  --space-xl: clamp(3.375rem, 3.2446rem + 0.6522vw, 3.75rem);
  --space-2xl: clamp(4.5rem, 4.3261rem + 0.8696vw, 5rem);
  --space-3xl: clamp(6.75rem, 6.4891rem + 1.3043vw, 7.5rem);
  --space-4xl: clamp(7.875rem, 7.5707rem + 1.5217vw, 8.75rem);
  --space-5xl: clamp(13.5rem, 12.9783rem + 2.6087vw, 15rem);

  /* One-up pairs */
  --space-3xs-2xs: clamp(0.3125rem, 0.2038rem + 0.5435vw, 0.625rem);
  --space-2xs-xs: clamp(0.5625rem, 0.4321rem + 0.6522vw, 0.9375rem);
  --space-xs-s: clamp(0.875rem, 0.7446rem + 0.6522vw, 1.25rem);
  --space-s-m: clamp(1.125rem, 0.8641rem + 1.3043vw, 1.875rem);
  --space-m-l: clamp(1.6875rem, 1.4049rem + 1.413vw, 2.5rem);
  --space-l-xl: clamp(2.25rem, 1.7283rem + 2.6087vw, 3.75rem);
  --space-xl-2xl: clamp(3.375rem, 2.8098rem + 2.8261vw, 5rem);
  --space-2xl-3xl: clamp(4.5rem, 3.4565rem + 5.2174vw, 7.5rem);
  --space-3xl-4xl: clamp(6.75rem, 6.0543rem + 3.4783vw, 8.75rem);
  --space-4xl-5xl: clamp(7.875rem, 5.3967rem + 12.3913vw, 15rem);

  /* Custom pairs */
  --space-xs-5xl: clamp(0.875rem, -4.038rem + 24.5652vw, 15rem);
}

* {
  box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }
}

html {
  color: var(--r-blue);
  font-family: 'Inter', sans-serif;
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  text-wrap: balance;
}

.bg-c-aqua {
  --link-color: var(--white);
  background-color: var(--c-aqua);
}

.bg-black {
  background-color: var(--black);
}
.bg-white {
  background-color: var(--white);
}

:where(h1, h2, h3, h4, h5, h6) span:not(.no-bg) {
  -webkit-box-decoration-break: clone;
  display: inline;
  box-decoration-break: clone;
  background-color: var(--headline-bg-col, var(--r-blue));
  padding: calc(var(--i-width) * 1.5ch);
  color: var(--headline-font-col, var(--white));
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: -10;
}

:where(h1, h2, h3, h4, h5, h6) span.blueonwhite:not(.no-bg) {
  --headline-bg-col: var(--r-blue);
  --headline-font-col: var(--white);
}

:where(h1, h2, h3, h4, h5, h6) span:not(.no-bg) > gold {
  color: var(--u-gold);
}

h1 {
  max-width: 30ch;
  font-size: 2.3rem;
}

h2 {
  max-width: 30ch;
  font-size: 1.8rem;
}

h3 {
  max-width: 30ch;
  font-size: 1.5rem;
}

h4 {
  max-width: 30ch;
  font-size: 1.2rem;
}

.text-sans {
  --copy-font: 'Inter', sans-serif;
  --copy-size: 1rem;
}

.text-serif {
  --copy-font: 'IBM Plex Serif', sans-serif;
  --copy-size: 11pt;
}

p {
  text-wrap: balance;
  max-width: 60ch;
  font-weight: 'regular';
  font-size: var(--copy-size);
  line-height: 1.8;
  font-family: var(--copy-font);
}

p a:link,
p a:visited {
  text-decoration: underline;
}

a:link,
a:visited {
  color: var(--link-color);
  text-decoration: none;
}

body {
  margin: 0;
  height: 100dvh;
  overflow-y: scroll;
}

li {
  line-height: 1.8;
  font-family: var(--copy-font);
}

button.btn-circle {
  border: none;
}

button.btn-circle:hover,
a.btn-circle:hover {
  transform: rotate(-10deg);
}

button.btn-circle,
a.btn-circle {
  display: inline-flex;
  align-items: center;
  justify-items: center;
  transform: rotate(0deg);
  transition: all 0.1s ease-out;
  margin: 0.5rem;
  border-radius: 50%;
  background-color: var(--u-gold);
  padding: 1rem;
  width: 10ch;
  height: 10ch;
  text-decoration: none;
}

button.btn-circle > div,
a.btn-circle > div {
  color: var(--white);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
}

button.btn-circle strong,
a.btn-circle strong {
  color: #000;
  font-weight: 800;
  text-transform: uppercase;
}

/* button group */

div.btn-group {
  display: flex;
  flex-flow: wrap row;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  width: fit-content;
}

a:has(img) {
  display: block;
  margin: 1rem 0;
  padding: 0;
}

img,
a img {
  box-sizing: border-box;
  margin: 0;
  border: solid var(--white) 0.4rem;
  padding: 0;
  width: 100%;
}

img.border-br-blue {
  border-color: var(--r-blue);
}

form {
  display: grid;
  grid-template-rows: repeat(auto-fill, auto);
  grid-template-columns: 1fr;
  grid-auto-flow: row;
  align-content: start;
  justify-content: start;
  justify-items: start;
  gap: 1rem;
}

form div.alert {
  margin: 1rem 0;
  border-radius: 5px;
  background-color: var(--r-blue-10);
  padding: 1rem;
  color: var(--r-blue);
  font-size: 0.95rem;
  font-family: var(--copy-font);
}

form div.alert.hidden {
  display: none;
}

form div.alert.success {
  background-color: var(--success);
  color: var(--r-blue);
}

form div.alert.error {
  background-color: var(--error);
  color: var(--white);
}

form input,
form select {
  border: solid var(--r-blue-10) 1px;
  border-radius: 5px;
  padding: 0.5rem;
}

form input,
form select {
  font-family: var(--copy-font);
}

form label {
  font-size: 0.9rem;
  font-family: var(--copy-font);
}

form input[type='checkbox'] + label {
  font-size: 1rem;
  font-family: var(--copy-font);
}

form label a:link {
  text-decoration: underline;
}

form div:has(> label + input) {
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-flow: row;
  gap: 0.5rem;
  font-family: var(--copy-font);
}

form div:has(> input + label) {
  display: grid;
  grid-template-rows: 1fr;
  grid-auto-flow: column;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--copy-font);
}

/* Buttons */

form button,
.btn,
.btn:where(:visited, :link) {
  --btn-bg-col: var(--white);
  --btn-font-col: var(--r-blue);
  --btn-outline-col: var(--r-blue);
  --btn-outline-hover-col: transparent;
  --btn-bg-hover-col: var(--r-blue);
  --btn-font-hover-col: var(--white);
  -webkit-appearance: none;
  display: block;
  appearance: none;
  transition:
    background-color 0.3s ease-in-out,
    color 0.3s ease-in-out,
    outline-color 0.3s ease-in-out,
    transform 0.1s ease-in-out;
  cursor: pointer;
  box-sizing: border-box;
  margin-block: var(--space-3xs);
  outline-color: transparent;

  box-shadow: rgba(0, 0, 0, 0.1) 2px 4px 5px 0px;
  border: none;
  border-radius: 5px;
  background-color: var(--btn-bg-col);
  padding: 0.5rem 1rem;
  width: fit-content;
  color: var(--btn-font-col) !important;
  caret-color: transparent;
  font-weight: 700;
  font-size: 1em;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.03em;
  text-align: center;
}

.btn.with-outline {
  outline: var(--btn-outline-col) 1px solid;
  background-color: transparent;
}

form button:hover,
.btn:hover {
  outline: 1px var(--btn-outline-hover-col) solid;
  box-shadow: rgba(0, 0, 0, 0.07) 1px 1px 2px 0px;
  background-color: var(--btn-bg-hover-col);
  color: var(--btn-font-hover-col) !important;
}
form button:active,
.btn:active {
  transform: scale(0.98);
}

form button.btn-dark,
.btn.btn-dark,
.btn.btn-dark:where(:visited, :link) {
  --btn-outline-col: var(--white);
  --btn-bg-col: var(--r-blue);
  --btn-font-col: var(--white);
  --btn-outline-hover-col: var(--r-blue);
  --btn-bg-hover-col: transparent;
  --btn-font-hover-col: var(--r-blue);
}

form button.btn-100,
.btn.btn-100 {
  width: 100%;
}

form button.btn-m50,
.btn.btn-m50 {
  min-width: 50%;
}

.btn-c-aqua {
  --btn-bg-col: transparent;
  --btn-font-col: var(--c-aqua);
  --btn-outline-col: var(--c-aqua);
  --btn-outline-hover-col: transparent;
  --btn-bg-hover-col: var(--white);
  --btn-font-hover-col: var(--r-blue);
}

/* shareModal */
#shareModal {
  display: none;
  position: fixed;
  top: 0;
  grid-template-rows: repeat(3, auto);
  grid-template-columns: 1fr;
  align-content: center;
  justify-content: center;
  justify-items: center;
  gap: 2rem;
  z-index: 1000;
  box-sizing: border-box;
  background-color: var(--r-blue);
  padding: 3rem calc(var(--distance-side) / 2);
  width: 100%;
  color: var(--white);
}
#shareModal.show {
  display: grid;
}

#shareModal h3 {
  grid-row: 1;
  grid-column: 1 / -1;
  text-align: center;
}

#shareModal div.links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(6rem, 1fr));
  grid-auto-rows: 1fr;
  grid-auto-flow: row;
  grid-row: 2;

  justify-content: space-between;
  justify-items: center;
  gap: 2rem;
  width: 100%;
}

#shareModal div.links a {
  height: 100%;
}

#shareModal a {
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-flow: row;
  align-content: center;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  border-radius: 10px;
  background-color: var(--r-blue-60);
  padding: 1rem;
  aspect-ratio: 1;
  width: fit-content;
  min-width: fit-content;
  min-height: fit-content;
  color: var(--white);
  text-align: center;
}

#shareModal a > i {
  font-size: 2rem;
}

#shareModal a > span {
  font-size: 0.8rem;
}

#shareModal > #closeModal {
  grid-row: 3;
  grid-column: 1 / -1;
}

/* Infobox*/

.info {
  border-radius: 5px;
  background-color: var(--c-aqua-25);
  padding: var(--space-xs);
}