/* ---- theme tokens ---- */
:root {
  /* Main Theme Colors */
  --color-bg-main: #1b214e; /* body bg */
  --color-bg-alt: #232a4d; /* modal bg, alt */
  --color-bg-container: #293165; /* container bg */
  --color-bg-translucent: rgba(14, 14, 22, 0.6);
  --color-bg-footer: rgba(34, 37, 60, 0.75);
  --color-bg-footer-catalyst: rgba(34, 37, 60, 0.45);
  --color-bg-footer-border: #fff;

  /* Violet/Purple Accent */
  --color-accent: #6f55b6;
  --color-accent-hover: #825eff;
  --color-accent-border: #5f559a;
  --color-accent-focus: #9e81fa;
  --color-accent-selected: #ad7aff;

  /* Shape/Gradient Colors */
  --color-shape: #323c6f;
  --color-shape2: #3a5580;
  --color-shape-diamond: #fff;
  --color-shape-diamond-alt: #67564c;

  /* Text/Font */
  --color-text: #eeeeee;
  --color-text-muted: #bbb;
  --color-footer-text: #fff;
  --color-label: #ececec;
  --color-h1: #fff;

  /* Misc UI */
  --color-border: #ccc;
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-shadow-strong: #2e205999;
  --color-modal-bg: rgba(18, 18, 40, 0.85);
  --color-modal-date: #bbe;

  /* Tag colors */
  --tag-update: #ff4b4b;
  --tag-version: #2fd46c;
  --tag-beta: #ad7aff;
  --tag-alpha: #49baff;

  /* Settings */
  --settings-size: 70px;
  --settings-radius: calc(var(--radius) * 1.2);
  --settings-border: var(--color-bg-footer-border);
  --settings-bg: var(--color-bg-container);
  --settings-shadow: 0 3px 12px rgba(0, 0, 0, 0.3);

  /* Misc */
  --radius: 10px;
  --radius-large: 16px;
  --blur-bg: blur(8px);
  --theme-bg: #293165;
}

/* ---- settings toggle ---- */
.settings-menu {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1000;
}
.settings-toggle {
  width: var(--settings-size);
  height: var(--settings-size);
  background: var(--color-bg-container);
  border: 2px solid var(--settings-border);
  border-radius: var(--settings-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--settings-shadow);
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.18s;
}
.settings-toggle img {
  width: 38px;
  height: 38px;
  filter: brightness(1.1) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.13));
  transition: transform 0.6s cubic-bezier(0.44, 0.96, 0.4, 1.09);
}
.settings-toggle:hover {
  box-shadow: 0 6px 20px rgba(111, 85, 182, 0.2), 0 0 8px var(--color-accent);
  transform: scale(1.07);
}
.settings-toggle.spin-open img {
  animation: spin 0.6s forwards;
}
.settings-toggle.spin-close img {
  animation: spin 0.6s reverse forwards;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---- panel animation ---- */
.settings-content {
  display: block;
  position: absolute;
  top: 80px;
  left: 0;
  min-width: 520px;
  min-height: 320px;
  background: var(--color-bg-container);
  border: 2px solid var(--settings-border);
  border-radius: var(--settings-radius);
  box-shadow: var(--settings-shadow);
  overflow: visible;
  padding: 0;
  z-index: 1001;
  backdrop-filter: var(--blur-bg);

  /* hidden by default -> fade/slide in */
  opacity: 0;
  pointer-events: none;
  transform: translateY(-40px) scale(0.98);
  transition: opacity 0.7s cubic-bezier(0.32, 1.6, 0.49, 1),
    transform 1s cubic-bezier(0.32, 1.6, 0.49, 1);
}
.settings-content.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

/* ---- panel layout ---- */
.settings-flex {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  min-height: 320px;
}

/* ---- sidebar (flagpole) ---- */
.settings-sidebar {
  border-right: 2px solid var(--color-accent-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px; /* change back to 18px if awkward*/
  justify-content: space-evenly;
  padding: 0px 8px; /* change back to 20px if awkward */
  min-width: 62px;
  box-shadow: 2px 0 8px 0 rgba(0, 0, 0, 0.04);

  opacity: 0;
  transform: translateY(-32px) scaleY(0.95);
  transition: opacity 0.22s cubic-bezier(0.4, 1.3, 0.45, 1) 0.1s,
    transform 0.32s cubic-bezier(0.4, 1.3, 0.45, 1) 0.1s;
}
.settings-content.show .settings-sidebar {
  opacity: 1;
  transform: translateY(0) scaleY(1);
}

/* ---- sidebar tab buttons ---- */
.tab-icon-btn {
  background: transparent;
  border: none;
  border-radius: 9px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.16s, box-shadow 0.15s;
}
.tab-icon-btn img {
  width: 28px;
  height: 28px;
}
.tab-icon-btn.active,
.tab-icon-btn:hover {
  background: var(--color-accent);
  box-shadow: 0 1px 2px var(--color-accent-hover);
}

/* ---- main panel (flag) ---- */
.settings-main {
  flex: 1;
  min-width: 340px;
  padding: 24px 24px 18px 24px;
  display: flex;
  flex-direction: column;

  opacity: 0;
  transform: translateX(-54px) scaleX(0.95);
  transition: opacity 0.38s cubic-bezier(0.36, 1.5, 0.59, 1) 0.22s,
    transform 0.44s cubic-bezier(0.36, 1.5, 0.59, 1) 0.22s;
}
.settings-content.show .settings-main {
  opacity: 1;
  transform: translateX(0) scaleX(1);
}

/* ---- tabs (browser style) ---- */
.tabs {
  display: flex;
  gap: 0;
  margin-bottom: 0;
  position: relative;
  border-bottom: 2px solid var(--color-bg-container);
  z-index: 3;
  background: transparent;
}
.tab-button {
  padding: 12px 32px 10px 32px;
  background: var(--color-bg-container);
  color: var(--color-text);
  border: none;
  border-top-left-radius: var(--settings-radius);
  border-top-right-radius: var(--settings-radius);
  border-bottom: none;
  margin-bottom: -2px;
  font-size: 1.07rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
  position: relative;
  z-index: 2;
  outline: none;
  box-shadow: none;
}
.tab-button.active {
  color: var(--color-accent-selected);
  background: var(--color-bg-container);
  border: 2px solid var(--settings-border);
  border-bottom: none;
  margin-bottom: -2px;
  z-index: 3;
}
/* kill the bottom seam on the active tab */
.tab-button.active::after {
  content: "";
  position: absolute;
  left: -0.5px;
  right: -0.5px;
  bottom: -2px;
  height: 2px;
  background: var(--theme-bg);
  z-index: 4;
  pointer-events: none;
}
.tab-button:hover:not(.active) {
  color: var(--color-accent-hover);
  background: rgba(111, 85, 182, 0.09);
}

/* ---- tab content ---- */
.tab-content {
  display: none;
  position: relative;
  background: var(--color-bg-container);
  border-radius: 0 0 var(--settings-radius) var(--settings-radius);
  border: 2px solid var(--settings-border);
  /* border-top: none; */
  padding: 20px 8px 18px 12px;
  min-height: 13rem;
  box-shadow: 0 6px 30px 0 rgba(0, 0, 0, 0.07);
  z-index: 1;
}
.tab-content.active {
  display: block;
}

/* little helper for moving underline (safe to keep even if ::before is styled elsewhere) */
.settings-main.tab-0-active .tab-content.active::before {
  left: 0;
  right: 75%;
}
.settings-main.tab-1-active .tab-content.active::before {
  left: 25%;
  right: 50%;
}
.settings-main.tab-2-active .tab-content.active::before {
  left: 50%;
  right: 25%;
}
.settings-main.tab-3-active .tab-content.active::before {
  left: 75%;
  right: 0;
}

/* ---- scrollbars ---- */
.settings-content::-webkit-scrollbar,
.tab-content::-webkit-scrollbar {
  width: 8px;
}
.settings-content::-webkit-scrollbar-thumb,
.tab-content::-webkit-scrollbar-thumb {
  background: var(--color-accent);
  border-radius: 4px;
}

/* ---- volume ---- */
.volume-group {
  padding-bottom: 18px;
  width: 100%;
}
.volume-title {
  font-weight: 600;
  color: var(--color-text);
  font-size: 1.09rem;
  margin-bottom: 2px;
  display: block;
  text-align: left;
  letter-spacing: 0.01em;
}
.volume-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 7px;
}
.volume-mute-label {
  font-weight: 500;
  color: var(--color-text-muted);
  font-size: 1.07rem;
  letter-spacing: 0.01em;
}

/* toggle switch -> simple */
.toggle-switch {
  width: 46px;
  height: 22px;
  border-radius: 13px;
  background: var(--color-accent-border);
  display: inline-block;
  position: relative;
  cursor: pointer;
  transition: background 0.18s;
  border: 2px solid var(--color-accent-border);
  box-sizing: border-box;
}
.toggle-switch::before {
  content: "";
  position: absolute;
  top: 1px;
  left: 1px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: left 0.19s cubic-bezier(0.36, 1.5, 0.59, 1);
  box-shadow: 0 1px 4px 0 rgba(0, 0, 0, 0.09);
}
.toggle-switch.active {
  background: linear-gradient(
    90deg,
    var(--color-accent) 60%,
    var(--color-accent-hover) 100%
  );
  border-color: var(--color-accent);
}
.toggle-switch.active::before {
  left: 25px;
}

/* volume slider */
.volume-slider {
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: linear-gradient(
    90deg,
    var(--color-accent) 60%,
    var(--color-accent-hover) 100%
  );
  outline: none;
  margin-top: 8px;
  margin-bottom: 0;
  appearance: none;
  box-shadow: none;
  position: relative;
}
.volume-slider::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 2.5px solid var(--color-accent);
  cursor: pointer;
  margin-top: -5px;
  box-shadow: 0 1px 5px 0 rgba(0, 0, 0, 0.12);
  transition: border 0.18s;
}
.volume-slider::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 5px;
  background: inherit;
}
.volume-slider::-moz-range-thumb,
.volume-slider::-ms-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 2.5px solid var(--color-accent);
  cursor: pointer;
  box-shadow: 0 1px 5px 0 rgba(0, 0, 0, 0.12);
}
.volume-slider::-ms-fill-lower,
.volume-slider::-ms-fill-upper {
  background: inherit;
}
.volume-percent {
  display: block;
  width: 100%;
  text-align: right;
  color: var(--color-text-muted);
  font-size: 1.03rem;
  margin-top: 2px;
  margin-bottom: 4px;
}

/* ---- theme support ---- */
body.theme-catalyst {
  --theme-bg: rgba(14, 14, 22, 1);
  --color-bg-container: rgba(14, 14, 22, 0.6);
}
body.theme-dark {
  --theme-bg: #141a2b;
}

/* ---- index/help tabs ---- */
.display-group {
  margin-bottom: 16px;
  width: 100%;
}
.display-title {
  font-weight: 600;
  color: var(--color-text);
  font-size: 1.09rem;
  margin-bottom: 8px;
  display: block;
  text-align: left;
  letter-spacing: 0.01em;
}
.display-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 13px;
}
.display-label {
  font-weight: 500;
  color: var(--color-text);
  font-size: 1.07rem;
  letter-spacing: 0.01em;
}
.display-desc {
  color: var(--color-text-muted);
  font-size: 0.98em;
  margin-left: 2px;
}

#indexTab {
  padding: 20px 0 18px 0;
  line-height: 1.3rem;
  overflow-y: auto;
  max-height: 300px;
  scrollbar-width: thin;
}
#indexTab ul {
  padding-left: 35px;
}

#helpTab {
  line-height: 1.3rem;
}
#helpTab ul {
  padding-left: 35px;
}