* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  height: 100%;
  line-height: 1.6;
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji;
  overflow-wrap: anywhere;
}

:root {
  --sidebar-bg: #f1f7ff;
  --content-bg: #ffffff;
  --item-bg: #cfe0ff;
  --subitem-bg: #b9d0ff;
  --border: #c0d3ff;
}

a {
  color: #0366d6;
  text-decoration: none;

  &:hover {
    text-decoration: underline;
  }
}

code, pre, tt {
  padding: .2em .4em;
  margin: 0;
  font-size: 85%;
  background-color: rgba(27, 31, 35, .05);
  border-radius: 3px;
  font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;
  white-space: normal;
}

h1 {
  margin-top: 0.2em;
}

h2 {
  font-size: 1.3em;
}

h3 {
  font-size: 1.1em;
  font-weight: 500;
}

table {
  border-collapse: collapse;

  thead {
    text-align: left;
    background-color: #eee;
  }

  thead {
    border-bottom: 7px solid #fff;
  }

  tr {
    border-bottom: 7px solid #fff;
    border-top: 7px solid #fff;
    vertical-align: baseline;
  }

  tr:first-child {
    border-bottom: none;
  }

  tr:last-child {
    border-top: none;
  }

  td {
    padding: 0;
  }

  td, th {
    border-left: 5px solid #fff;
    border-right: 5px solid #fff;
  }

  td:first-child, th:first-child {
    border-left: none;
  }

  td:last-child, th:last-child {
    border-right: none;
  }
}

li + li {
  margin-top: .25em;
}

/* ---------- Root ---------- */
.layout {
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ---------- Desktop layout ---------- */
.app {
  display: flex;
  justify-content: center;
  height: 100%;
  overflow: hidden;
  background-color: #dccb921c;
}

/* ---------- Sidebar ---------- */
.sidebar {
  flex-shrink: 0;
  width: 262px;
  background: var(--sidebar-bg);
  //border-right: 2px solid var(--border);
  box-shadow: rgb(216, 231, 251) 0px 2px 4px 1px;
  overflow-y: auto;
  padding: 16px;

  #turbolinks-header {

    #logo {
      width: 100%;
      display: flex;
      flex-direction: row;
      align-items: center;
      justify-content: center;
      margin-top: 10px;
      margin-bottom: 25px;
    }

    a {
      text-decoration: none;
    }

    a.button.rainbow {
      position: relative;
      display: inline-block;
      z-index: 0;
      background: linear-gradient(60deg, #f79533, #f37055, #ef4e7b, #a166ab, #5073b8, #1098ad, #07b39b, #6fba82);
      background-size: 300% 300%;
      animation: animatedgradient 5s linear infinite;
      color: #fff;
      font-size: 120%;
      padding: 0.4em 0.9em;
      border-radius: 3em;
      margin-right: 0;

      &::before {
        content: "";
        position: absolute;
        inset: -1px;
        border-radius: inherit;
        z-index: -1;
        background: linear-gradient(60deg, #f79533, #f37055, #ef4e7b, #a166ab, #5073b8, #1098ad, #07b39b, #6fba82);
        background-size: 300% 300%;
        animation: animatedgradient 5s linear infinite;
        filter: blur(8px);
        opacity: 0;
      }

      &:hover::before {
        opacity: 0.9;
      }

      &:active::before {
        opacity: 0;
      }
    }

    h1 {
      margin: 0;
      padding-bottom: 5px;
      line-height: 1;

      a {
        color: #000;
      }
    }

    p {
      margin: 0;
      color: #666;
    }

    #title-and-subtitle {
      display: flex;
      flex-direction: column;
      padding-left: 10px;
    }

    #download-section {
      display: flex;
      flex-direction: column;
      align-items: center;
      margin-bottom: 25px;

      div {
        font-size: 0.7em;
        margin-top: 5px;
        color: #646464;
      }
    }

    @keyframes animatedgradient {
      0% {
        background-position: 0% 0%;
      }
      25% {
        background-position: 50% 50%;
      }
      50% {
        background-position: 100% 10%;
      }
      75% {
        background-position: 50% 50%;
      }
      100% {
        background-position: 0% 0%;
      }
    }
  }
}

/* ---------- Menu ---------- */
.menu,
.menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  padding-left: 10px;
}

.menu-item {
  margin-bottom: 8px;

  a {
    color: #468ed8;
  }
}

.menu-item > input {
  display: none;
}

.menu-label {
  display: flex;
  align-items: center;
  gap: 6px;
  //background: var(--item-bg);
  padding: 6px 0;
  cursor: pointer;
  font-size: 16px;

  &.active, &:hover {
    text-decoration: none;
    font-weight: bold;
    //color: #0052a7;
  }

  &.support {
    color: #c10029;
  }
}

ul.submenu {
  padding-left: 28px;
  border-left: 1px solid var(--border);
  margin-left: 1px;
  font-size: 15px;
  max-height: 300px;
  overflow: auto;

  a.active, a:hover {
    text-decoration: none;
    font-weight: bold;
    //color: #0052a7;
  }
}

/* ---------- Content ---------- */
.content {
  max-width: 1048px;
  flex-shrink: 1;
  flex-grow: 1;
  background: var(--content-bg);
  overflow-y: auto;
  padding: 24px;

  & > div {
    max-width: 700px;

    .can-extend {
      width: calc(100vw - 310px) !important;
      max-width: 1000px;
    }
  }
}

/* ---------- Mobile ---------- */
#menu-toggle {
  display: none;
}

.hamburger-bar {
  display: none;
  height: 60px;
  background: var(--sidebar-bg);
  //border-bottom: 2px solid var(--border);
  box-shadow: rgb(216, 231, 251) 0px 2px 4px 1px;
  padding: 8px;
  align-items: center;

  #mobile-logo {
    display: flex;
    flex-grow: 1;
    align-items: center;
    justify-content: center;
    gap: 10px;

    & > div {
      display: flex;
      flex-direction: column;

      a {
        text-decoration: none;
        color: black;
        font-weight: bold;
      }

      & > span:last-child {
        margin-top: 4px;
        font-size: 13px;
        color: #666666;
      }
    }
  }
}

.hamburger-label {
  background: var(--item-bg);
  padding: 10px 15px;
  border-radius: 15px;
  cursor: pointer;
  font-size: 13px;
}

/* ---------- Mobile behavior ---------- */
@media (max-width: 800px) {
  #turbolinks-header {
    display: none;
  }

  .hamburger-bar {
    display: flex;
  }

  .app {
    position: relative;
  }

  .sidebar {
    position: fixed;
    top: 55px;
    //left: 0;
    right: 0;
    //bottom: 0;
    width: auto;
    transform: translateY(-100%);
    transition: transform 0.2s ease;
    z-index: 10;
    padding: 14px 24px 0 14px;
  }

  /* FIX: checkbox now controls sidebar */
  #menu-toggle:checked ~ .app .sidebar {
    transform: translateY(0);
  }

  .content {
    padding-top: 24px;

    & > div {
      max-width: unset;

      .can-extend {
        width: 100% !important;
      }
    }
  }

  /* Toggle text */
  .close {
    display: none;
  }

  #menu-toggle:checked + .hamburger-bar .open {
    display: none;
  }

  #menu-toggle:checked + .hamburger-bar .close {
    display: inline;
  }

  .sidebar {
    pointer-events: none;   /* closed = not clickable */
  }

  #menu-toggle:checked ~ .app .sidebar {
    transform: translateY(0);
    pointer-events: auto;   /* open = clickable */
  }

  .hamburger-bar {
    position: relative;
    z-index: 20;            /* always above sidebar */
  }
}

/* ---------- Support Page ------------- */
.support-buttons {
  display: flex;
  justify-content: center;
  column-gap: 40px;
  row-gap: 55px;
  flex-wrap: wrap;
  margin-bottom: 70px;

  /* Wrapper: each button keeps its mascot */
  .support-button-wrapper {
    position: relative;
    display: inline-block;
    height: 120px; /* ensures space for mascot below */
  }

  /* Button shape + style */
  .support-button {
    width: 130px;
    height: 50px;
    border-radius: 22px;
    padding: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;

    background: linear-gradient(145deg, #ffffff, #dce8ff);
    box-shadow:
            4px 4px 10px rgba(0,0,0,0.15),
            -4px -4px 10px rgba(255,255,255,0.7);
    transition: transform 0.2s ease, box-shadow 0.2s ease;

    position: relative;
    overflow: hidden;
  }

  /* Shine streak */
  .support-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: -150%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
                    120deg,
                    rgba(255,255,255,0) 0%,
                    rgba(255,255,255,0.55) 50%,
                    rgba(255,255,255,0) 100%
    );
    transform: skewX(-20deg);
    opacity: 0;
  }

  .support-button:hover::before {
    animation: shine-sweep 0.8s forwards;
    opacity: 1;
  }

  @keyframes shine-sweep {
    0% { left: -150%; }
    100% { left: 200%; }
  }

  /* Button image */
  .support-button img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
  }

  /* Hover lift */
  .support-button:hover {
    transform: scale(1.08);
    box-shadow:
            6px 6px 15px rgba(0,0,0,0.18),
            -6px -6px 15px rgba(255,255,255,0.8);
  }

  /* Mascots */
  .mascot {
    position: absolute;
    width: 60px;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%) translateY(0);
    transition: transform 0.3s;
    pointer-events: none;
  }

  .rabbit { width: 50px } /* long ears '^^ /*

      /* Hover reactions */
  .support-button-wrapper:hover .cat { transform: translateX(-50%) translateY(-20px) rotate(-15deg); }
  .support-button-wrapper:hover .dog { transform: translateX(-50%) translateY(-20px) scaleX(-1); }
  .support-button-wrapper:hover .squirrel { transform: translateX(-50%) translateY(-20px) rotate(15deg); }
  .support-button-wrapper:hover .rabbit { transform: translateX(-50%) translateY(-20px) rotate(-10deg); }

  .support-button img.paypal { width: 60%; margin-top: 6px; }
  .support-button img.github-sponsors { width: 110%; margin-top: 6px; }
  .support-button img.stripe { width: 51%; margin-top: 4px; }
}

#changelog {
  margin-top: -20px;
  padding: 15px;

  #support-link {
    margin: 0;
    position: fixed;
    top: 15px;
    right: 10px;
    border-radius: 0.5em;
    padding: 0.15em 0.9em;
    font-size: 13px;
    background: #ffdbd5;
    /*background: #f91675;*/
    color: #950020;
    /*color: white;*/
    font-weight: normal;
  }

  h1, h2 {
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 20px;
    background-color: #f1f7ff;
    display: inline-block;
  }

  @media (prefers-color-scheme: dark) {
    h1, h2 {
      background-color: rgba(255, 255, 255, 0.14);
    }
  }

  h3 {
    font-size: 13px;
    font-weight: bold;
    margin: 0;
  }

  ul {
    margin: 0 0 5px 0;
  }
}