/* Maze Bench site chrome — shared design system.
   Retro-vector 80s: dark canvas, thin neon linework, restrained glow.
   Loaded by index.html and every page function. Page-specific layout
   stays in each page's inline <style>; keep chrome-level rules here. */

:root {
  color-scheme: dark;

  --bg: #070811;
  --bg-2: #0b0e20;
  --paper: #10142c;        /* solid panel surface */
  --panel: rgba(16, 20, 44, 0.66); /* glassy panel */
  --paper-dim: #0b0e20;
  --ink: #e7eaff;          /* primary text */
  --muted: #8b91c6;
  --line: rgba(124, 143, 255, 0.24);
  --line-strong: rgba(124, 143, 255, 0.5);

  /* neon accents (also exposed as RGB triples for glow math) */
  --cyan: #34e7f0;   --cyan-rgb: 52, 231, 240;
  --violet: #8b7bff; --violet-rgb: 139, 123, 255;
  --magenta: #ff49d9; --magenta-rgb: 255, 73, 217;
  --green: #46f0a0;  --green-rgb: 70, 240, 160;
  --amber: #ffd15c;  --amber-rgb: 255, 209, 92;

  /* legacy token aliases kept so page CSS stays valid */
  --yellow: var(--amber);
  --sky: var(--violet);
  --coral: var(--magenta);
  --mint: var(--green);

  --radius-sm: 6px;
  --radius: 9px;
  --radius-lg: 14px;

  /* shadows are now soft neon glows (no hard offset) */
  --shadow-xs: 0 0 10px rgba(var(--cyan-rgb), 0.08);
  --shadow-sm: 0 0 16px rgba(var(--cyan-rgb), 0.14);
  --shadow-md: 0 0 24px rgba(var(--cyan-rgb), 0.16);
  --shadow-lg: 0 0 46px rgba(var(--cyan-rgb), 0.2);

  --font-display: "Orbitron", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --topbar-height: 64px;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 110% 60% at 50% -6%, rgba(var(--violet-rgb), 0.18), rgba(7, 8, 17, 0) 66%),
    linear-gradient(rgba(var(--cyan-rgb), 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--cyan-rgb), 0.045) 1px, transparent 1px);
  background-size: 100% 100%, 46px 46px, 46px 46px;
  background-position: center top;
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
ul,
dl {
  margin: 0;
}

h1 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-shadow: 0 0 18px rgba(var(--cyan-rgb), 0.2);
  text-transform: uppercase;
}

h2 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

h3 {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

p,
li {
  line-height: 1.55;
}

/* Standard page shell: every non-game page wraps its content in
   <main class="page-shell"> and only overrides --page-max. */
.page-shell {
  display: grid;
  gap: 20px;
  margin: 0 auto;
  max-width: var(--page-max, 1120px);
  padding: 36px 18px 56px;
  width: 100%;
}

.muted {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.mono {
  font-family: var(--font-mono);
}

/* ---- Topbar ---- */

.topbar {
  align-items: center;
  background: rgba(7, 8, 17, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(var(--cyan-rgb), 0.14);
  display: flex;
  gap: 12px;
  height: var(--topbar-height);
  justify-content: space-between;
  padding: 0 18px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.brand-link {
  align-items: center;
  border: none;
  background: none;
  box-shadow: none;
  color: var(--ink);
  display: inline-flex;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  gap: 10px;
  letter-spacing: 0.14em;
  min-height: 0;
  padding: 4px 2px;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-link:hover,
.brand-link:focus-visible {
  background: none;
  color: #ffffff;
  outline: none;
  transform: none;
  box-shadow: none;
  text-shadow: 0 0 14px rgba(var(--cyan-rgb), 0.55);
}

.brand-mark {
  display: inline-flex;
  filter: drop-shadow(0 0 6px rgba(var(--cyan-rgb), 0.5));
  height: 26px;
  transition: filter 0.15s ease;
  width: 26px;
}

.brand-link:hover .brand-mark,
.brand-link:focus-visible .brand-mark {
  filter: drop-shadow(0 0 11px rgba(var(--cyan-rgb), 0.85));
}

.brand-mark svg {
  height: 100%;
  width: 100%;
}

.topbar-nav {
  align-items: center;
  display: flex;
  gap: 4px;
}

.nav-link {
  align-items: center;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  box-shadow: none;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  font-weight: 600;
  letter-spacing: 0.02em;
  min-height: 34px;
  padding: 6px 11px;
  text-decoration: none;
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(var(--cyan-rgb), 0.08);
  color: var(--ink);
  outline: none;
  transform: none;
  box-shadow: none;
}

.nav-link.is-active {
  color: var(--cyan);
  text-shadow: 0 0 10px rgba(var(--cyan-rgb), 0.45);
}

/* ---- Topbar dropdown menus ---- */

.nav-dropdown {
  position: relative;
}

.nav-dropdown > summary {
  gap: 7px;
  list-style: none;
  user-select: none;
}

.nav-dropdown > summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown > summary::after {
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  content: "";
  opacity: 0.7;
  transition: transform 0.15s ease;
}

.nav-dropdown[open] > summary {
  background: rgba(var(--cyan-rgb), 0.08);
  color: var(--ink);
}

.nav-dropdown[open] > summary::after {
  transform: rotate(180deg);
}

.nav-menu {
  background: rgba(10, 13, 30, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md), 0 18px 40px rgba(0, 0, 0, 0.5);
  display: grid;
  gap: 2px;
  left: 0;
  min-width: 214px;
  padding: 6px;
  position: absolute;
  top: calc(100% + 8px);
  z-index: 60;
}

.nav-menu-link {
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 11px;
  text-decoration: none;
  white-space: nowrap;
}

.nav-menu-link:hover,
.nav-menu-link:focus-visible {
  background: rgba(var(--cyan-rgb), 0.1);
  color: var(--ink);
  outline: none;
}

.nav-menu-link.is-active {
  color: var(--cyan);
}

.account-actions {
  align-items: center;
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  justify-content: flex-end;
  min-height: 34px;
}

/* ---- Buttons & inputs ---- */

button,
.button,
.action-button,
.account-button,
.link-button {
  --btn: 124, 143, 255;
  align-items: center;
  background: rgba(var(--btn), 0.05);
  border: 1px solid rgba(var(--btn), 0.32);
  border-radius: var(--radius);
  box-shadow: none;
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-weight: 600;
  gap: 8px;
  justify-content: center;
  letter-spacing: 0.02em;
  min-height: 36px;
  padding: 7px 14px;
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

button:hover,
button:focus-visible,
.button:hover,
.button:focus-visible,
.action-button:hover,
.action-button:focus-visible,
.account-button:hover,
.account-button:focus-visible,
.link-button:hover,
.link-button:focus-visible {
  background: rgba(var(--btn), 0.12);
  border-color: rgba(var(--btn), 0.85);
  box-shadow: 0 0 16px rgba(var(--btn), 0.3), inset 0 0 12px rgba(var(--btn), 0.06);
  color: #ffffff;
  outline: none;
}

button:focus-visible,
.button:focus-visible,
.action-button:focus-visible,
.account-button:focus-visible,
.link-button:focus-visible {
  outline: 1px solid rgba(var(--btn), 0.9);
  outline-offset: 2px;
}

button:active,
.button:active,
.action-button:active,
.account-button:active,
.link-button:active {
  background: rgba(var(--btn), 0.18);
  box-shadow: inset 0 0 14px rgba(var(--btn), 0.22);
  transform: none;
}

button:disabled {
  background: rgba(124, 143, 255, 0.04);
  border-color: var(--line);
  box-shadow: none;
  color: var(--muted);
  cursor: default;
}

/* accent variants set the neon hue + a resting glow */
.button--primary,
.button--sky,
.button--coral,
.button--mint {
  border-color: rgba(var(--btn), 0.55);
  box-shadow: 0 0 14px rgba(var(--btn), 0.18);
  color: #ffffff;
}

.button--primary { --btn: var(--cyan-rgb); background: rgba(var(--cyan-rgb), 0.1); }
.button--sky { --btn: var(--violet-rgb); background: rgba(var(--violet-rgb), 0.1); }
.button--coral { --btn: var(--magenta-rgb); background: rgba(var(--magenta-rgb), 0.1); }
.button--mint { --btn: var(--green-rgb); background: rgba(var(--green-rgb), 0.1); }

.button--quiet {
  border-color: transparent;
  box-shadow: none;
  background: none;
  color: var(--muted);
  font-weight: 600;
}

.button--quiet:hover,
.button--quiet:focus-visible {
  background: rgba(var(--cyan-rgb), 0.08);
  border-color: transparent;
  box-shadow: none;
  color: var(--ink);
}

input,
select,
textarea {
  background: rgba(8, 11, 26, 0.85);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font: inherit;
  min-height: 38px;
  padding: 8px 12px;
  width: 100%;
}

input::placeholder,
textarea::placeholder {
  color: rgba(139, 145, 198, 0.7);
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: rgba(var(--cyan-rgb), 0.8);
  box-shadow: 0 0 14px rgba(var(--cyan-rgb), 0.22);
  outline: none;
}

/* ---- Text links ---- */

.text-link {
  border-radius: 3px;
  color: var(--cyan);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.text-link:hover,
.text-link:focus-visible {
  color: #ffffff;
  outline: none;
  text-decoration: none;
  text-shadow: 0 0 12px rgba(var(--cyan-rgb), 0.6);
}

/* ---- Cards & panels ---- */

.card {
  background: var(--panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md), 0 18px 40px rgba(0, 0, 0, 0.45);
  padding: 20px;
}

.panel {
  display: grid;
  gap: 18px;
}

/* ---- Modal ---- */

.modal {
  align-items: center;
  background: rgba(4, 5, 12, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  inset: 0;
  justify-content: center;
  padding: 18px;
  position: fixed;
  z-index: 90;
}

.modal.open {
  display: flex;
}

.dialog {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 24px 60px rgba(0, 0, 0, 0.55);
  display: grid;
  gap: 16px;
  max-width: 380px;
  padding: 24px;
  width: min(100%, 380px);
}

.dialog-header {
  align-items: center;
  display: flex;
  gap: 10px;
  justify-content: space-between;
}

.dialog-header h2 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ---- Forms ---- */

.form {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status {
  min-height: 19px;
}

/* ---- Footer ---- */

.site-footer {
  align-items: center;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 13px;
  gap: 8px 18px;
  justify-content: center;
  padding: 30px 16px 36px;
}

.site-footer a {
  color: inherit;
  font-weight: 600;
}

@media (max-width: 640px) {
  .topbar {
    gap: 8px;
    padding: 0 10px;
  }

  .brand-link {
    font-size: 0; /* icon-only brand on small screens */
    gap: 0;
    letter-spacing: 0;
  }

  .nav-link {
    padding: 6px 8px;
  }

  .nav-menu {
    left: auto;
    right: 0;
  }

  .nav-dropdown:first-child .nav-menu {
    left: 0;
    right: auto;
  }
}