:root {
  --brand-ink: #111111;
  --brand-paper: #fff8e8;
  --brand-white: #ffffff;
  --brand-yellow: #ffd84d;
  --brand-orange: #ff8a3d;
  --brand-pink: #ff6fb1;
  --brand-blue: #2457ff;
  --brand-green: #35d07f;
  --brand-muted: #5a5148;
  --focus-ring: #003cff;
  --focus-bg: #ffffff;
  --selection-bg: #111111;
  --selection-fg: #ffffff;
  --scrollbar-track: #fff8e8;
  --scrollbar-thumb: #111111;
  --scrollbar-thumb-hover: #2457ff;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --border-strong: 4px;
  --shadow-brutal: 6px 6px 0 var(--brand-ink);
  --shadow-brutal-lg: 10px 10px 0 var(--brand-ink);
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  scrollbar-gutter: stable;
}

body {
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--brand-paper);
  color: var(--brand-ink);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  line-height: 1.5;
}

body * {
  max-width: 100%;
}

::-webkit-scrollbar {
  width: 14px;
  height: 14px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border: 3px solid var(--scrollbar-track);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

::-webkit-scrollbar-corner {
  background: var(--scrollbar-track);
}

* {
  scrollbar-width: auto;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

::selection {
  background: var(--selection-bg);
  color: var(--selection-fg);
}

:focus-visible {
  outline: 4px solid var(--focus-ring);
  outline-offset: 3px;
  box-shadow: 0 0 0 3px var(--focus-bg);
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
span,
a,
label,
li {
  min-width: 0;
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: normal;
}

a {
  color: inherit;
}

img,
video,
canvas,
iframe,
svg {
  max-width: 100%;
  height: auto;
}

iframe {
  display: block;
  border: 0;
}

button,
input,
textarea,
select {
  max-width: 100%;
  font: inherit;
}

.hidden {
  display: none !important;
}

/* === Components, Animations & UX Defenses === */

#app-shell {
  position: relative;
  isolation: isolate;
}

#app-shell::before,
#app-shell::after {
  content: "";
  position: fixed;
  inset: auto;
  pointer-events: none;
  z-index: 1;
}

#app-shell::before {
  width: 42rem;
  height: 42rem;
  left: -18rem;
  top: 12rem;
  background: radial-gradient(circle, rgba(36, 87, 255, 0.22), transparent 62%);
  filter: blur(10px);
}

#app-shell::after {
  width: 36rem;
  height: 36rem;
  right: -14rem;
  bottom: -10rem;
  background: radial-gradient(circle, rgba(255, 111, 177, 0.28), transparent 64%);
  filter: blur(12px);
}

#hero-board {
  z-index: 5;
  background-image:
    linear-gradient(135deg, rgba(17,17,17,.08) 25%, transparent 25%),
    linear-gradient(225deg, rgba(17,17,17,.08) 25%, transparent 25%);
  background-size: 26px 26px;
}

#hero-title-block,
#hero-status-card,
#generator-panel > div,
#source-type-rail > div {
  position: relative;
  overflow: hidden;
}

#hero-title-block::after,
#generator-panel > div::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 0 38%, rgba(255,255,255,.42) 48%, transparent 58% 100%);
  transform: translateX(-120%);
  animation: sheen 5.5s ease-in-out infinite;
  pointer-events: none;
}

#hero-status-card::before {
  content: "";
  position: absolute;
  right: -4rem;
  top: -4rem;
  width: 11rem;
  height: 11rem;
  border: 4px solid rgba(255,255,255,.7);
  border-radius: 999px;
  pointer-events: none;
}

#source-type-rail {
  z-index: 20;
}

#source-type-buttons button {
  position: relative;
  transform-origin: left center;
}

#source-type-buttons button::after {
  content: "→";
  position: absolute;
  right: .85rem;
  top: 50%;
  transform: translateY(-50%) translateX(-.35rem);
  opacity: 0;
  transition: opacity .18s ease, transform .18s ease;
}

#source-type-buttons button:hover::after,
#source-type-buttons button[aria-pressed="true"]::after,
#source-type-buttons button.is-active::after {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

#format-rules-card {
  background-image: radial-gradient(circle at 88% 12%, rgba(255,255,255,.45) 0 18%, transparent 19%);
}

input,
textarea,
select {
  transition: box-shadow .18s ease, transform .18s ease, background-color .18s ease;
}

input:focus,
textarea:focus,
select:focus {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--brand-blue);
}

button,
[role="button"],
a,
label,
select,
summary,
input[type="checkbox"],
input[type="radio"],
input[type="file"] {
  cursor: pointer;
}

button,
[role="button"],
a {
  transition: transform .16s ease, box-shadow .16s ease, filter .16s ease;
}

button:hover,
[role="button"]:hover,
a:hover {
  transform: translate(-2px, -2px);
  filter: saturate(1.08);
}

button:active,
[role="button"]:active,
a:active {
  transform: translate(2px, 2px) scale(.985);
}

button:disabled,
[aria-disabled="true"] {
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(1);
  opacity: .55;
}

[aria-busy="true"] {
  cursor: progress;
}

.glass-panel,
[data-glass="true"] {
  background: linear-gradient(135deg, rgba(255,255,255,.72), rgba(255,248,232,.38));
  backdrop-filter: blur(18px) saturate(1.45);
  -webkit-backdrop-filter: blur(18px) saturate(1.45);
  box-shadow: 0 18px 50px rgba(17,17,17,.22), inset 0 1px 0 rgba(255,255,255,.55);
}

.skeleton,
[data-skeleton="true"] {
  color: transparent !important;
  background: linear-gradient(90deg, rgba(17,17,17,.12), rgba(255,255,255,.65), rgba(17,17,17,.12));
  background-size: 220% 100%;
  animation: skeleton-loading 1.2s linear infinite;
}

.fade-in,
[data-animate="fade-in"] {
  animation: fade-in .42s ease both;
}

.slide-up,
[data-animate="slide-up"] {
  animation: slide-up .48s cubic-bezier(.2,.8,.2,1) both;
}

.scale-bounce,
[data-animate="scale-bounce"] {
  animation: scale-bounce .48s cubic-bezier(.2,1.35,.35,1) both;
}

.loading-dot {
  animation: pulse-dot .9s ease-in-out infinite alternate;
}

.loading-dot:nth-child(2) {
  animation-delay: .12s;
}

.loading-dot:nth-child(3) {
  animation-delay: .24s;
}

[popover],
.dialog,
.modal,
.overlay,
.toast,
.tooltip,
.dropdown,
[data-overlay],
[data-modal],
[data-dialog],
[data-popover],
[data-dropdown],
[data-toast] {
  pointer-events: none;
}

[popover]:popover-open,
.dialog.is-open,
.modal.is-open,
.overlay.is-open,
.tooltip.is-open,
.dropdown.is-open,
[data-overlay].is-open,
[data-modal].is-open,
[data-dialog].is-open,
[data-popover].is-open,
[data-dropdown].is-open,
[data-state="open"],
[aria-hidden="false"][data-overlay],
[aria-hidden="false"][data-modal],
[aria-hidden="false"][data-dialog] {
  pointer-events: auto;
}

.overlay,
[data-overlay] {
  z-index: 42;
}

.dialog,
.modal,
[popover],
[data-dialog],
[data-modal],
[data-popover] {
  z-index: 48;
}

.dropdown,
.tooltip,
[data-dropdown],
[data-tooltip] {
  z-index: 35;
}

.toast,
[data-toast],
[role="status"][aria-live],
[role="alert"] {
  z-index: 9999 !important;
  pointer-events: auto;
}

.dark #app-shell {
  background:
    radial-gradient(circle at 18% 12%, rgba(36,87,255,.26), transparent 32rem),
    radial-gradient(circle at 88% 28%, rgba(255,111,177,.18), transparent 28rem),
    #101010;
  color: #fff8e8;
}

.dark #hero-board {
  background-color: #181818;
  border-color: #fff8e8;
}

.dark #hero-title-block,
.dark #source-type-rail > div,
.dark #generator-panel > div > div,
.dark input,
.dark textarea,
.dark select {
  background-color: #171717;
  color: #fff8e8;
  border-color: #fff8e8;
}

.dark #hero-status-card {
  background: linear-gradient(135deg, #1237b8, #111);
  border-color: #fff8e8;
}

.dark #format-rules-card {
  background-color: #c9571f;
  color: #fff8e8;
  border-color: #fff8e8;
}

.dark .glass-panel,
.dark [data-glass="true"] {
  background: linear-gradient(135deg, rgba(28,28,28,.76), rgba(17,17,17,.48));
  box-shadow: 0 18px 60px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.12);
}

.dark .skeleton,
.dark [data-skeleton="true"] {
  background: linear-gradient(90deg, rgba(255,255,255,.08), rgba(255,255,255,.24), rgba(255,255,255,.08));
  background-size: 220% 100%;
}

@keyframes sheen {
  0%, 55% { transform: translateX(-120%); }
  78%, 100% { transform: translateX(120%); }
}

@keyframes skeleton-loading {
  to { background-position: -220% 0; }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scale-bounce {
  0% { opacity: 0; transform: scale(.86); }
  70% { opacity: 1; transform: scale(1.04); }
  100% { transform: scale(1); }
}

@keyframes pulse-dot {
  from { opacity: .35; transform: translateY(0); }
  to { opacity: 1; transform: translateY(-4px); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}