:root {
  --accent: #00bfff;
  --bg-light: #f5f5f7;
  --text-light: #111827;
  --bg-dark: #0d1117;
  --text-dark: #e6edf3;
  --container-max-width: 600px;
  --glass-bg-light: rgba(232, 232, 237, 0.7);
  --glass-bg-dark: rgba(66, 66, 69, 0.7);
  --glass-btn: rgba(255, 255, 255, 0.18);
  --glass-blur: 12px;
  --btn-size: 48px;
  --btn-size-sm: 40px;
}

/* Base */
* {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 130px;
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Noto Sans, Ubuntu, Cantarell, Helvetica Neue, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  margin: 0 auto;
  padding: 1rem;
  line-height: 1.5;
  background-color: var(--bg-light);
  color: var(--text-light);
}

header {
  position: sticky;
  top: 18px;
  z-index: 30;
}

nav {
  display: flex;
  justify-content: center;
  gap: .5rem;
  padding: .75rem;
  max-width: var(--container-max-width);
  margin: 0 auto;
  border-radius: 980px;
  backdrop-filter: saturate(140%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(140%) blur(var(--glass-blur));
  background: var(--glass-bg-light);
}

/* Glass pills */
.tab-button,
.brief-btn,
.add-troop-btn,
.breakdown-btn,
.multiplier-btn,
legend {
  appearance: none;
  border: 1px solid rgba(0, 0, 0, 0.18);
  background: var(--glass-btn);
  backdrop-filter: saturate(140%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(140%) blur(var(--glass-blur));
  color: var(--text-light);
  padding: .5rem .8rem;
  border-radius: 980px;
  text-decoration: none;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease, color .18s ease;
  box-shadow: rgba(0, 0, 0, 0.11) 0px 0px 1px 0px inset;
  margin: 0;
  flex: 1 1 25%;
  cursor: pointer;
}

.tab-button {
  display: flex;
  justify-content: center;
  align-items: center;
}

legend {
  cursor: auto;
  text-align: left;
}

#toc {
  margin-top: 0.25rem;
}

.brief-btn, .multiplier-btn {
  flex: none;
  display: inline-flex;
}

.add-troop-btn {
  margin: 0.25rem;
}

/* Accent states */
.tab-button:hover,
.tab-button.active,
.brief-btn:hover,
.add-troop-btn:hover,
.remove-troop-btn,
.breakdown-btn.active,
.multiplier-btn.active,
.multiplier-btn:hover {
  background-color: var(--accent);
  color: #fff;
}

.input-row, #optionsButtons {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  align-items: center;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--accent);
  text-shadow: 0 0 4px var(--accent);
}

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
}

img {
    width: 100%;
    max-width: 560px;
    border-radius: 18px;
}

p a {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    transition: transform .08s ease, text-shadow .15s ease
}
p a:hover {
    text-shadow: 0 0 4px var(--accent);
}

label {
  display: block;
  margin-top: 1rem;
  font-weight: 600;
}

input,
select,
fieldset,
.breakdown-card {
  width: 100%;
  padding: 0.6rem;
  margin-top: 0.25rem;
  border-radius: 18px;
  font-size: 1rem;
  background: var(--glass-btn);
  border: 1px solid rgba(0, 0, 0, 0.18);
  transition: transform .08s ease, background .15s ease, box-shadow .15s ease;
  box-shadow: rgba(0, 0, 0, 0.11) 0px 0px 1px 0px inset;
}

fieldset {
  margin-top: 1rem;
  padding: 1rem;
  max-width: var(--container-max-width);
  margin-inline-start: auto;
  margin-block-end: auto;
}

legend {
  font-weight: 700;
  color: var(--accent);
}

/* Select styling */
select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding-right: 2.25rem;
  line-height: 1.2;
  border-radius: 980px;
  transition: border-color .15s ease, box-shadow .15s ease;
}

select,
select:focus {
  color: inherit; /* inherits from body (your light text color) */
  -webkit-text-fill-color: currentColor; /* force iOS to use that color */
}

select:not([multiple]):not([size]) {
  background-repeat: no-repeat;
  background-position: right .75rem center;
  background-size: 1rem;
  background-image: url("data:image/svg+xml;utf8,\
<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' width='16' height='16' fill='none' stroke='%23000000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'>\
<polyline points='6 9 12 15 18 9'/></svg>");
}

select::-ms-expand {
  display: none;
}

select:not([disabled]) {
  cursor: pointer;
}

select:disabled {
  opacity: .6;
  cursor: not-allowed;
}

option {
  color: #000;
}

/* Unified focus ring for inputs/selects */
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent) inset;
}

/* Theme overrides */
@media (prefers-color-scheme: dark) {
  body {
    background-color: var(--bg-dark);
    color: var(--text-dark);
  }

  nav {
    background: var(--glass-bg-dark);
  }

  .tab-button,
  .brief-btn,
  .add-troop-btn,
  .breakdown-btn,
  .multiplier-btn,
  legend {
    color: var(--text-dark);
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: rgba(232, 232, 237, 0.11) 0px 0px 1px 0px inset;
  }

  input,
  select,
  fieldset,
  .breakdown-card {
    color: var(--text-dark);
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: rgba(232, 232, 237, 0.11) 0px 0px 1px 0px inset;
  }

  select:not([multiple]):not([size]) {
    background-image: url("data:image/svg+xml;utf8,\
<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' width='16' height='16' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'>\
<polyline points='6 9 12 15 18 9'/></svg>");
  }

  option {
    background-color: var(--bg-dark);
    color: var(--text-dark);
  }

  .video-link {
    color: var(--text-dark);
  }
}

@media (prefers-color-scheme: light) {
  .video-link {
    color: var(--text-light);
  }
}

/* Layout helpers */
.input-col {
  flex: 1;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}

/* Results blocks */
.results,
.battle-result {
  margin-top: 2rem;
  font-size: 1rem;
  padding: 1rem;
  border-radius: 18px;
  box-shadow: 0 0 18px rgba(0, 191, 255, 0.3);
  transition: transform .08s ease, background .15s ease, box-shadow .15s ease;
  background: var(--glass-btn);
  backdrop-filter: saturate(140%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(140%) blur(var(--glass-blur));
}

.battle-result {
  background-color: rgba(0, 191, 255, 0.1);
}

.battle-result em {
  text-align: center;
}

.results strong {
  color: var(--accent);
}

/* Rows and grids */
.chaser-row,
.boss-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
  flex-wrap: wrap;
}

.chaser-row > div,
.boss-row > div {
  flex: 1 1 25%;
}

#troopButtons,
#opponent_troopButtons {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.troop-count-row,
.troop-bonus-row {
  display: flex;
  gap: 1em;
  margin-bottom: 0.6em;
  width: 100%;
}

.troop-count-row input {
  width: 100%;
}

.troop-count-row > div,
.troop-bonus-row > div {
  display: flex;
  flex-direction: column;
}

.troop-count-row > div {
  flex: 1 1 0;
  min-width: 0;
}

.troop-count-row label,
.troop-bonus-row label {
  font-size: 0.75em;
  font-weight: 700;
}

.radar-debuff-wrap {
  flex-direction: column;
  align-items: flex-start;
}

/* Breakdown cards */
.breakdown-card {
  margin: 1em 0;
  padding: 1em;
  border-radius: 18px;
  font-size: 1em;
  line-height: 1.7;
}

.breakdown-card strong {
  font-size: 1.08em;
  display: block;
}

.breakdown-card span {
  font-weight: bold;
}

/* Combat type buttons */
.combat-type-btn-group {
  display: flex;
}

.combat-type-btn {
  flex: 1 1 0;
}

/* Links styled as text */
.video-link {
  padding: 0;
  margin: 0;
  border: none;
  background-color: transparent;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.video-link:hover,
.video-link:active {
  background-color: transparent;
  color: var(--accent);
}

/* Fancybox */
.fancybox__backdrop {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.fancybox__container.is-animated .fancybox__backdrop {
  opacity: 1;
}

.fancybox__content {
  width: min(90vw, 900px);
  aspect-ratio: 16 / 9;
  max-height: 85vh;
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.fancybox__container.is-animated .fancybox__content {
  opacity: 1;
  transform: scale(1);
}

.fancybox__content > iframe {
  width: 100%;
  height: 100%;
}

.carousel__button {
  position: absolute !important;
  top: -60px !important;
  right: 0 !important;
  width: var(--btn-size) !important;
  height: var(--btn-size) !important;
  border-radius: 9999px !important;
  background: var(--glass-btn) !important;
  backdrop-filter: blur(var(--glass-blur)) !important;
  -webkit-backdrop-filter: blur(var(--glass-blur)) !important;
  border: 1px solid rgba(255, 255, 255, 0.35) !important;
  box-shadow: none !important;
  color: #fff !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  cursor: pointer !important;
  z-index: 10000 !important;
}

/* Utility: inline/narrow selects */
.select-inline {
  width: auto !important;
  min-width: 10ch;
}

/* Mobile tweaks */
@media (max-width: 600px) {
  #troopButtons,
  #opponent_troopButtons,
  #optionsButtons {
    grid-template-columns: 1fr;
  }

  :root {
    --btn-size: var(--btn-size-sm);
  }
}