/* Fonts
--------------------------*/
@import url("https://rsms.me/inter/inter-ui.css");

/* Variables
---------------------------*/

:root {
  --color-teal-T1000: #052028;
  --color-teal-T900: #054861;
  --color-teal-T800: #0f6a80;

  --color-gray-L700: #33373b;
  --color-gray-L200: #f2f5f8;
  --color-gray-D200: #a3a8ac;

  --color-yellow-Y500: #ffb916;
  --color-yellow-Y400: #ffcf50;

  --color-red-R600: #db4648;

  --body-border: 0.6em;
  --body-padding: 3vw;
  --color-mode: "light";
  --background: var(--color-yellow-Y500);
  --background-alt: var(--color-yellow-Y400);
  --text-color: var(--color-gray-L700);
  --mode-icon: "🌑";
  --mode-icon-opacity: "1";
  --border-color: var(--text-color);
}

/* Dark Mode
---------------------------*/

@media (prefers-color-scheme: dark) {
  :root {
    --color-mode: "dark";
  }

  :root:not([data-user-color-scheme]) {
    --background: var(--color-teal-T1000);
    --background-alt: var(--color-teal-T900);
    --text-color: var(--color-gray-L200);
    --border-color: var(--color-teal-T800);
    --mode-icon: "🌕";
    --mode-icon-opacity: 0.85;
  }
}

[data-user-color-scheme="dark"] {
  --background: var(--color-teal-T1000);
  --background-alt: var(--color-teal-T900);
  --text-color: var(--color-gray-L200);
  --border-color: var(--color-teal-T800);
  --mode-icon: "🌕";
  --mode-icon-opacity: 0.85;
}

/* Global
---------------------------*/

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

::selection {
  background-color: var(--color-red-R600);
  color: var(--color-gray-L200);
}

html {
  height: 100vh;
  padding: var(--body-border);
  background-color: var(--background-alt);
}

body {
  min-height: calc(100vh - var(--body-border) * 2);
  margin: 0;
  padding: 2.5vw 2.5vw 5vw;
  display: flex;
  flex-direction: column;
  gap: 1vw;
  background-color: var(--background);
  border-radius: 5px;
  font-size: 112.5%;
  font-family: "Inter UI", Helvetica, Arial, sans-serif;
  line-height: 1.4;
  color: var(--text-color);
}

body.no-js {
  padding-top: 5vw;
}

/* Header
---------------------------*/

header {
  width: 100%;
  text-align: right;
}

body.no-js .toggle-button {
  display: none;
}

.toggle-button {
  margin-top: auto;
  padding: 0.4em 0.8em;
  background-color: var(--background-alt);
  border: none;
  border-radius: 5px;
  font-size: clamp(1rem, 1vw, 1.5rem);
  color: var(--text-color);
  cursor: pointer;
}

.toggle-button::before {
  content: var(--mode-icon);
  opacity: var(--mode-icon-opacity);
}

.toggle-button:focus {
  outline: none;
  border: none;
}

.toggle-button:focus-visible {
  outline: 2px solid var(--text-color);
}

/* Main
---------------------------*/

main,
header {
  margin-inline: auto;
  max-width: 50rem;
}

/* About section
---------------------------*/

.about {
  padding: 1rem var(--body-padding) 0;
  flex: 1 0 1;
}

@media screen and (min-width: 800px) {
  .about {
    padding: 1rem 0 0;
    flex: 1;
  }
}

section h1 {
  font-size: clamp(1.5rem, 2.5vw, 3.5rem);
}
section h2 {
  font-size: clamp(1.2rem, 2vw, 2.7rem);
}
section p {
  font-size: clamp(1rem, 1.5vw, 1.33rem);
}
section > * + * {
  margin-top: 0.5em;
}