/* =================================================================
   Arcade Timelines — styles.css (shared by both pages)
   ================================================================= */

/* ---- COLORS + FONT ----------------------------------------------
   These are the starting colors (Retro Arcade). theme.js replaces
   them when a theme loads, so every color below can change. */
:root {
  --app-bg: #000000;
  --border-color: #243cff;
  --link-color: #ff4aa8;
  --ui-muted: #1ea0ff;
  --text-primary: #ffe36b;
  --surface: #020214;
  --font: "Press Start 2P", "Courier New", monospace;
  /* script.js recomputes this against the current --app-bg every time
     a theme loads, so it's always legible. */
  --footer-warning-color: #ff3b3b;
}

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

/* Anything with the hidden attribute is really hidden, even when a
   rule below gives it a display value. */
[hidden] {
  display: none !important;
}

html,
body {
  min-height: 100%;
}

body {
  background: var(--app-bg);
  color: var(--text-primary);
  font-family: var(--font);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---- THE NEON FRAME (the double lines around the page) ---------- */
.arcade-frame {
  flex: 1;
  /* Always a full viewport tall (minus the body's own padding), even
     though the footer below it pushes total page height past 100vh
     and requires a scroll — the frame itself never gets compressed. */
  min-height: calc(100vh - 40px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  border: 4px solid var(--border-color);
  border-radius: 22px;
  padding: 26px 32px 32px;
  box-shadow:
    inset 0 0 0 4px var(--app-bg),
    inset 0 0 0 8px var(--border-color);
}

/* ---- CORNER NUMBERS ---------------------------------------------- */
.hud {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.hud-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 10px;
  line-height: 1.6;
  text-transform: uppercase;
}

.hud-stat--right {
  text-align: right;
}

/* Ghost + label sit on one line; the right stat keeps hugging the edge. */
.hud-stat__labelrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hud-stat--right .hud-stat__labelrow {
  justify-content: flex-end;
}

/* When the Hall of Fame clears the stats, hide the ghosts too. */
.hud--empty .ghost--mini {
  display: none;
}

.hud-stat__value {
  color: var(--link-color);
}

/* ---- NEON LOGO ---------------------------------------------------- */
.site-header {
  text-align: center;
}

.neon-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  line-height: 1;
}

.neon-logo:focus {
  outline: none;
}

.neon-logo__arcade {
  font-size: 34px;
  color: var(--text-primary);
  text-shadow: 0 0 14px color-mix(in srgb, var(--text-primary) 55%, transparent);
}

.neon-logo__timelines {
  font-size: 34px;
  color: var(--ui-muted);
  text-shadow: 0 0 14px color-mix(in srgb, var(--ui-muted) 60%, transparent);
}

/* ---- CREDITS LOOP -------------------------------------------------
   All the .credit items sit in the same spot. script.js shows one at
   a time by adding and removing the .is-showing class. */
.credits {
  display: flex;
  justify-content: center;
}

.credits__rotator {
  position: relative;
  width: 520px;
  max-width: 60vw;
  height: 48px;
}

.credit {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  text-decoration: none;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s;
}

.credit.is-showing {
  opacity: 1;
  visibility: visible;
}

.credit--insert {
  font-size: 15px;
  letter-spacing: 3px;
  color: var(--link-color);
  text-shadow: 0 0 12px color-mix(in srgb, var(--link-color) 60%, transparent);
}

.credit--insert.is-showing {
  animation: insert-coin-flash 0.8s step-end infinite;
}

.credit--version {
  font-size: 10px;
  letter-spacing: 1px;
}

.credit-logo img {
  max-height: 100%;
  /* Wide banner logos stop at 280px so they all look a similar size. */
  max-width: min(280px, 100%);
  display: block;
}

.credit-logo:hover img {
  filter: brightness(1.15);
}

/* ---- TAB BUTTONS --------------------------------------------------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.tab {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 11px;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  background: transparent;
  border: 3px solid;
  border-radius: 8px;
  min-block-size: 32px;
  padding: 5px 12px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.tab--decade {
  inline-size: 78px;
  border-color: var(--ui-muted);
  color: var(--ui-muted);
}

/* The two wide buttons share a size; only their colors differ.
   Their labels ("Arcade Systems" / "Hall of Fame") must stay on one
   line, so the button is sized to the text instead of letting it wrap. */
.tab--systems,
.tab--hof {
  inline-size: auto;
  min-inline-size: 152px;
  padding-inline: 14px;
  font-size: 9px;
  line-height: 1.05;
  text-transform: uppercase;
  white-space: nowrap;
}

.tab--systems {
  border-color: var(--link-color);
  color: var(--link-color);
}

.tab--hof {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

/* The "?" help button, square-ish, to the right of the other tabs.
   Same colors as the Hall of Fame button. */
.tab--help {
  inline-size: 40px;
  min-inline-size: 40px;
  border-color: var(--text-primary);
  color: var(--text-primary);
  font-size: 13px;
}

.tab--help.is-active {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--app-bg);
  box-shadow: 0 0 16px color-mix(in srgb, var(--text-primary) 60%, transparent);
}

/* The "Links" button, to the right of the "?" button. Same colors and
   the same panel; only the width differs, to fit the word. */
.tab--links {
  inline-size: auto;
  min-inline-size: 78px;
  padding-inline: 12px;
  border-color: var(--text-primary);
  color: var(--text-primary);
  font-size: 9px;
  text-transform: uppercase;
  white-space: nowrap;
}

.tab--links.is-active {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--app-bg);
  box-shadow: 0 0 16px color-mix(in srgb, var(--text-primary) 60%, transparent);
}

.tab:hover {
  background: color-mix(in srgb, var(--ui-muted) 14%, transparent);
}

.tab--decade.is-active,
.tab--hof.is-active {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--app-bg);
  box-shadow: 0 0 16px color-mix(in srgb, var(--text-primary) 60%, transparent);
}

.tab--systems.is-active {
  background: var(--link-color);
  border-color: var(--link-color);
  color: var(--app-bg);
  box-shadow: 0 0 16px color-mix(in srgb, var(--link-color) 60%, transparent);
}

/* ---- TIMELINE VIEWER (main page) ----------------------------------- */
.timeline-wrap {
  flex: 1;
  min-height: 0;
  position: relative;
  border: 4px solid var(--border-color);
  border-radius: 14px;
  background: color-mix(in srgb, var(--app-bg) 86%, var(--border-color));
  overflow: hidden;
}

.timeline-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: color-mix(in srgb, var(--app-bg) 86%, var(--border-color));
}

.timeline-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 24px;
  text-align: center;
  background: color-mix(in srgb, var(--app-bg) 86%, var(--border-color));
  color: color-mix(in srgb, var(--ui-muted) 55%, var(--text-primary));
}

.timeline-placeholder__title {
  font-size: 14px;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.timeline-placeholder__text {
  max-width: 30ch;
  font-size: 10px;
  line-height: 1.7;
}

.timeline-placeholder code {
  color: var(--link-color);
}

/* ---- MAXIMIZE BUTTON ------------------------------------------------ */
.maximize-btn {
  position: absolute;
  bottom: 14px;
  right: 20px;
  z-index: 3;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 12px;
  line-height: 1;
  text-decoration: none;
  color: color-mix(in srgb, var(--ui-muted) 55%, var(--text-primary));
  background: var(--surface);
  border: 1px solid var(--accent-color);
  border-radius: 9px;
  inline-size: 38px;
  block-size: 34px;
  padding: 0;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.maximize-btn svg {
  width: 18px;
  height: 18px;
}

.maximize-btn:hover {
  color: var(--app-bg);
  background: color-mix(in srgb, var(--ui-muted) 55%, var(--text-primary));
}

/* ---- HALL OF FAME LIST ---------------------------------------------- */
.hof-wrap {
  flex: 1;
  min-height: 0;
  border: 4px solid var(--border-color);
  border-radius: 14px;
  background: color-mix(in srgb, var(--app-bg) 86%, var(--border-color));
  overflow: auto;
  padding: 30px 36px;
}

/* Every row is a grid: rank / game / manufacturer / year. */
.hof-head,
.hof-row {
  display: grid;
  grid-template-columns: 3.5ch minmax(0, 1.6fr) minmax(0, 1fr) 6ch;
  column-gap: 26px;
  align-items: baseline;
}

/* The Hall of Fame's own button row, above its list. */
.tabs--hof {
  margin-bottom: 26px;
}

.hof-head {
  max-width: 780px;
  margin: 0 auto 22px;
  font-size: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ui-muted);
}

.hof-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 780px;
  margin: 0 auto;
}

.hof-row {
  font-size: 11px;
  line-height: 1.5;
  /* Rows start invisible; script.js adds .is-revealed one row at a
     time, so they pop in like an arcade high-score table. */
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.hof-row.is-revealed {
  opacity: 1;
  transform: none;
}

.hof-rank {
  color: var(--link-color);
}

.hof-game {
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hof-maker {
  color: var(--ui-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hof-year {
  color: var(--link-color);
  text-align: right;
}

/* ---- BOTTOM BAR ------------------------------------------------------ */
.bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.visitors {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

/* The MAME logo sitting in front of the typed-out version, sized to match
   the height of the text next to it. */
.mame-line {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.mame-line__logo {
  display: block;
  height: 13px;
  width: auto;
}

/* The typed-out MAME version in the bottom-left corner. min-width keeps
   the bar from shifting as characters appear. */
.mame-version {
  min-width: 12ch;
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--ui-muted);
}

.flag-counter img {
  display: block;
  border: 0;
}

.visitors__label {
  font-size: 9px;
  text-transform: uppercase;
}

.digit {
  font-size: 13px;
  color: color-mix(in srgb, var(--ui-muted) 55%, var(--text-primary));
  background: color-mix(in srgb, var(--app-bg) 92%, var(--border-color));
  border: 1px solid var(--border-color);
  padding: 5px 6px;
}

/* The little Pac-Man ghost. */
.ghost {
  flex-shrink: 0;
  position: relative;
  width: 22px;
  height: 24px;
  margin-left: 4px;
  background: var(--link-color);
  border-radius: 11px 11px 0 0;
}

.ghost::before,
.ghost::after {
  content: "";
  position: absolute;
  top: 7px;
  width: 5px;
  height: 5px;
  background: #ffffff;
  border-radius: 50%;
}

.ghost::before { left: 4px; }
.ghost::after  { right: 4px; }

/* Smaller ghost for the corner stats, in a different color than the
   footer's pink one. */
.ghost--mini {
  width: 14px;
  height: 15px;
  margin-left: 0;
  border-radius: 7px 7px 0 0;
  background: var(--ui-muted);
}

.ghost--mini::before,
.ghost--mini::after {
  top: 4px;
  width: 3px;
  height: 3px;
}

.ghost--mini::before { left: 3px; }
.ghost--mini::after  { right: 3px; }

/* ---- THEME READOUT + MENU -------------------------------------------- */
.theme-readout {
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-primary);
  text-transform: uppercase;
}

.theme-readout__value {
  color: var(--link-color);
  margin-left: 8px;
}

.theme-picker {
  position: relative;
  /* Keeps it pinned to the right even if .visitors is hidden. */
  margin-left: auto;
}

.theme-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  min-width: 220px;
  /* Capped so a long theme list scrolls inside the menu instead of
     growing up past the top of the page. */
  max-height: 35vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--ui-muted) 70%, transparent) transparent;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  background: color-mix(in srgb, var(--app-bg) 92%, var(--border-color));
  box-shadow:
    inset 0 0 0 2px var(--surface),
    0 0 16px color-mix(in srgb, var(--border-color) 35%, transparent);
  z-index: 5;
}

/* Chrome and Safari ignore scrollbar-color, so the same bar is drawn again
   here. Styling it also stops macOS from hiding it until you scroll. */
.theme-menu::-webkit-scrollbar {
  width: 10px;
}

.theme-menu::-webkit-scrollbar-track {
  background: color-mix(in srgb, var(--ui-muted) 12%, transparent);
  border-radius: 5px;
}

.theme-menu::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--ui-muted) 70%, transparent);
  /* Transparent border plus content-box clipping insets the thumb, so it
     reads as a bar sitting in the track rather than filling it. */
  border: 2px solid transparent;
  background-clip: content-box;
  border-radius: 5px;
}

.theme-menu::-webkit-scrollbar-thumb:hover {
  background: var(--ui-muted);
  background-clip: content-box;
}

.theme-option {
  /* Without this the buttons squash to fit the capped height. */
  flex-shrink: 0;
  border: 2px solid var(--ui-muted);
  border-radius: 8px;
  background: transparent;
  color: color-mix(in srgb, var(--ui-muted) 55%, var(--text-primary));
  cursor: pointer;
  font-family: inherit;
  font-size: 9px;
  line-height: 1.2;
  padding: 8px 10px;
  text-align: left;
  text-transform: uppercase;
}

.theme-option:hover {
  background: color-mix(in srgb, var(--ui-muted) 14%, transparent);
}

/* ---- SITE FOOTER (legal / credits) -------------------------------------
   --footer-warning-color is set by script.js: red by default, black
   whenever red wouldn't be legible against the current theme's --app-bg. */
.site-footer {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.site-footer__warning {
  color: var(--footer-warning-color);
  font-size: 9px;
  line-height: 1.7;
  letter-spacing: 0.5px;
  text-align: center;
  margin-bottom: 14px;
}

.site-footer__credit {
  font-size: 8px;
  line-height: 1.9;
  letter-spacing: 0.3px;
  text-align: center;
  color: color-mix(in srgb, var(--ui-muted) 45%, var(--text-primary));
}

.site-footer__credit a {
  color: var(--link-color);
}

.site-footer__spacer {
  height: 10px;
}

.site-footer__copyright {
  font-size: 8px;
  letter-spacing: 0.3px;
  text-align: center;
  color: color-mix(in srgb, var(--ui-muted) 45%, var(--text-primary));
}

/* ---- HELP PANEL --------------------------------------------------------
   Centered on screen over everything. The steps use the same reveal
   animation as the Hall of Fame rows. */
.help-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: color-mix(in srgb, var(--app-bg) 78%, transparent);
}

.help-panel {
  max-width: 720px;
  max-height: 80vh;
  overflow: auto;
  padding: 30px 36px;
  border: 4px solid var(--border-color);
  border-radius: 14px;
  background: color-mix(in srgb, var(--app-bg) 92%, var(--border-color));
  box-shadow: 0 0 24px color-mix(in srgb, var(--border-color) 45%, transparent);
  text-align: left;
  font-weight: 700;
}

.help-intro {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 11px;
  line-height: 1.9;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.help-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.help-step {
  font-size: 10px;
  line-height: 1.8;
  color: color-mix(in srgb, var(--ui-muted) 40%, var(--text-primary));
  /* Same reveal as .hof-row: script.js adds .is-revealed one at a time. */
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.help-step.is-revealed {
  opacity: 1;
  transform: none;
}

.help-step a {
  color: var(--link-color);
}

/* ---- LINKS PANEL -------------------------------------------------------
   Same window as the help panel (it reuses .help-panel), with a
   heading and its links per group. */
.links-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: color-mix(in srgb, var(--app-bg) 78%, transparent);
}

.links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.links-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.links-group__title {
  font-size: 11px;
  line-height: 1.8;
  color: var(--text-primary);
}

.links-item {
  font-size: 10px;
  line-height: 1.8;
  padding-inline-start: 16px;
  /* Same reveal as .help-step: script.js adds .is-revealed one at a time. */
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.links-item.is-revealed {
  opacity: 1;
  transform: none;
}

.links-item a {
  color: var(--link-color);
}

/* ---- ANIMATIONS -------------------------------------------------------- */
@keyframes insert-coin-flash {
  0%   { opacity: 1; }
  50%  { opacity: 0; }
  100% { opacity: 1; }
}

/* ---- SMALL SCREENS ------------------------------------------------------ */
@media (max-width: 640px) {
  body {
    padding: 10px;
  }

  .arcade-frame {
    min-height: calc(100vh - 20px);
    padding: 20px 16px 22px;
  }

  .neon-logo__arcade,
  .neon-logo__timelines {
    font-size: 22px;
  }

  .tab {
    font-size: 9px;
    min-block-size: 28px;
    padding: 4px 8px;
  }

  .tab--decade {
    inline-size: 68px;
  }

  .tab--systems,
  .tab--hof {
    inline-size: auto;
    min-inline-size: 126px;
    padding-inline: 10px;
    font-size: 8px;
  }

  .tab--links {
    min-inline-size: 68px;
    padding-inline: 8px;
    font-size: 8px;
  }

  .theme-menu {
    min-width: 180px;
    right: -8px;
  }

  .credits__rotator {
    max-width: 55vw;
  }
}