@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&display=swap');

@font-face {
  font-family: 'Inter';
  src: url('assets/fonts/inter.woff2') format('woff2');
}

:root {
  --white: #fafafa;
  --black: #111111;
  --transparent-black: rgba(0, 0, 0, 0.8);
  --thin-border: 1px solid var(--white);
}

* {
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
}

html {
  overflow-x: hidden;
  background: var(--black);
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  width: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  padding: max(52px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  background: var(--black);
  color: var(--white);
}

button {
  min-height: 44px;
  color: var(--white);
  background: var(--black);
  touch-action: manipulation;
}

header {
  margin: 2px 0 8px;
  min-height: 44px;
}

#title {
  text-align: center;
  font-size: 1.75em;
  margin: 1vh 0;
  font-weight: 700;
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: min(100%, 560px);
  margin: 0 auto;
}

#top-bar {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  width: min(100%, 520px);
  min-height: 52px;
  gap: 8px;
  padding: 5px 0;
}

#button-container {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
}

#help-button,
#new-button {
  text-align: center;
  padding: 6px 10px;
  font-size: 1em;
  cursor: pointer;
  border: var(--thin-border);
  border-radius: 5px;
  width: 92px;
  min-height: 44px;
}

#help-button {
  margin-right: 7.5px;
  width: 44px;
}

#board {
  display: grid;
  width: min(100%, 520px, calc((100dvh - 230px) * 12 / 13));
  max-width: calc(100vw - 24px);
  aspect-ratio: 12 / 13;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.cell {
  width: 100%;
  height: 100%;
}

#controls {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  width: min(100%, 520px);
  gap: 5px;
  padding-top: 10px;
}

.color-button {
  width: 100%;
  height: clamp(44px, 9vh, 60px);
  border: 2px solid var(--white);
  border-radius: 5px;
  cursor: pointer;
}

.hidden {
  display: none;
}

.visible {
  display: flex;
}

#winning-streak {
  margin-top: 12px;
}

#help-container {
  position: fixed;
  inset: 0;
  background-color: var(--transparent-black);
  justify-content: center;
  align-items: center;
  z-index: 10000;
  padding: max(16px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
}

#help-content {
  padding: 20px;
  border-radius: 15px;
  width: min(100%, 390px);
  max-width: 350px;
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  text-align: center;
  background: var(--black);
}

#help-content h2 {
  font-size: 1.5em;
  margin-bottom: 20px;
}

#help-content p {
  font-size: 0.8em;
  margin: 10px 0 20px 0;
  text-align: left;
}

#back-button {
  border: var(--thin-border);
  border-radius: 5px;
  padding: 5px 10px;
  cursor: pointer;
  width: 130px;
  height: 50px;
  font-size: 1.5em;
  margin-bottom: 20px;
}

#copyright {
  font-size: 0.85em;
  margin-top: 5px;
}

/* Desktop */
@media (min-width: 800px) {
  html,
  body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  main {
    min-width: 400px;
    width: 20vw;
  }
}

@media (max-width: 420px) {
  body {
    padding-inline: 10px;
  }

  #top-bar {
    align-items: flex-start;
  }

  #status {
    line-height: 1.25;
    padding-top: 4px;
  }

  #new-button {
    width: 82px;
    font-size: 0.9em;
  }

  #controls {
    gap: 4px;
  }

  #help-content h2 {
    font-size: 1.25em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}