/* =========================================
   Global styles start
========================================= */
:root {
	--color-bg: #050816;
	--color-bg-2: #090b1f;
	--color-accent: #7f5af0;
	--color-accent-soft: rgba(127, 90, 240, 0.3);
	--color-accent-strong: rgba(127, 90, 240, 0.9);
	--color-accent-secondary: #2cb67d;
	--color-text: #e4e6f0;
	--color-text-muted: #9ca3af;
	--color-danger: #f97373;
	--panel-bg: rgba(15, 23, 42, 0.78);
	--border-soft: rgba(148, 163, 184, 0.35);
	--radius-lg: 1.5rem;
	--radius-md: 0.9rem;
	--shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.8);
	--shadow-orb: 0 0 26px rgba(127, 90, 240, 0.9);
	--transition-fast: 0.18s ease-out;
	--transition-med: 0.28s ease-in-out;
}

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

body {
	margin: 0;
	min-height: 100vh;
	font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
		"Segoe UI", sans-serif;
	color: var(--color-text);
	background: radial-gradient(circle at top left, #1f2937 0, transparent 55%),
		radial-gradient(circle at bottom right, #020617 0, transparent 60%),
		linear-gradient(135deg, #020617, #020718 40%, #000);
	display: flex;
	align-items: stretch;
	justify-content: center;
	padding: 1.5rem;
}

/* Global styles end */
/* ========================================= */

/* =========================================
   App layout start
========================================= */
.app {
	width: 100%;
	max-width: 1200px;
	border-radius: 2rem;
	background: radial-gradient(
				circle at top,
				rgba(148, 163, 184, 0.15),
				transparent 55%
			)
			border-box,
		linear-gradient(135deg, rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.9))
			padding-box;
	border: 1px solid rgba(148, 163, 184, 0.35);
	box-shadow: var(--shadow-soft);
	backdrop-filter: blur(20px);
	padding: 1.5rem 1.7rem 1.3rem;
	display: flex;
	flex-direction: column;
	gap: 1.2rem;
}

/* Nav start */
.app__nav {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 0.8rem;
}

.app__brand {
	font-weight: 600;
	letter-spacing: 0.14em;
	font-size: 0.8rem;
	text-transform: uppercase;
	color: rgba(209, 213, 219, 0.9);
}

.app__nav-links {
	display: flex;
	gap: 0.7rem;
}

.nav-link {
	font-size: 0.85rem;
	text-decoration: none;
	color: var(--color-text-muted);
	padding: 0.25rem 0.6rem;
	border-radius: 999px;
	border: 1px solid transparent;
	transition: background var(--transition-fast),
		border-color var(--transition-fast), color var(--transition-fast),
		transform var(--transition-fast);
}

.nav-link:hover {
	color: var(--color-text);
	border-color: rgba(148, 163, 184, 0.7);
	background: rgba(15, 23, 42, 0.8);
	transform: translateY(-1px);
}

.nav-link--active {
	color: #f9fafb;
	background: radial-gradient(
		circle at top left,
		var(--color-accent),
		transparent 55%
	);
	border-color: rgba(127, 90, 240, 0.7);
}
/* Nav end */

.app__hero {
	display: flex;
	justify-content: space-between;
	align-items: flex-end;
	gap: 1rem;
	flex-wrap: wrap;
}

.app__title {
	font-size: clamp(2rem, 3vw, 2.6rem);
	margin: 0 0 0.4rem;
	letter-spacing: 0.06em;
}

.app__subtitle {
	margin: 0;
	font-size: 0.98rem;
	color: var(--color-text-muted);
}

.app__toggles {
	display: flex;
	flex-wrap: wrap;
	gap: 0.7rem;
	align-items: center;
}

.app__main {
	display: grid;
	grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.4fr);
	grid-template-rows: auto auto;
	gap: 1.2rem;
}

.panel {
	background: var(--panel-bg);
	border-radius: var(--radius-lg);
	border: 1px solid var(--border-soft);
	padding: 1.3rem 1.3rem 1.1rem;
	position: relative;
	overflow: hidden;
}

.panel::before {
	content: "";
	position: absolute;
	inset: -40%;
	background: radial-gradient(
			circle at 10% 0,
			rgba(56, 189, 248, 0.13),
			transparent 60%
		),
		radial-gradient(circle at 90% 100%, rgba(127, 90, 240, 0.14), transparent 55%);
	opacity: 0.6;
	pointer-events: none;
	z-index: -1;
}

.panel__title {
	margin: 0 0 0.4rem;
	font-size: 1.05rem;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	font-weight: 600;
}

.panel__hint {
	margin: 0 0 0.9rem;
	font-size: 0.86rem;
	color: var(--color-text-muted);
}

.panel--controls {
	grid-row: 1 / 3;
}

.panel--galaxy {
	grid-row: 1 / 2;
}

.panel--result {
	grid-row: 2 / 3;
}

/* App layout end */
/* ========================================= */

/* =========================================
   Small UI components start
========================================= */

.toggle-group {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

.toggle-group__label {
	font-size: 0.78rem;
	color: var(--color-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.13em;
}

.toggle-group__select {
	border-radius: 999px;
	padding: 0.3rem 0.75rem;
	font-size: 0.85rem;
	border: 1px solid rgba(148, 163, 184, 0.7);
	background: rgba(15, 23, 42, 0.95);
	color: var(--color-text);
}

/* Buttons start */
.btn {
	border-radius: 999px;
	border: 1px solid transparent;
	padding: 0.45rem 0.9rem;
	font-size: 0.9rem;
	font-weight: 500;
	cursor: pointer;
	transition: transform var(--transition-fast), box-shadow var(--transition-fast),
		border-color var(--transition-fast), background var(--transition-fast),
		color var(--transition-fast), opacity var(--transition-fast);
	display: inline-flex;
	align-items: center;
	gap: 0.3rem;
}

.btn:disabled {
	opacity: 0.4;
	cursor: not-allowed;
	box-shadow: none;
	transform: none;
}

.btn--small {
	padding: 0.32rem 0.7rem;
	font-size: 0.8rem;
}

.btn--primary {
	background: linear-gradient(
		135deg,
		var(--color-accent),
		var(--color-accent-strong)
	);
	color: white;
	box-shadow: 0 10px 22px rgba(127, 90, 240, 0.55);
}

.btn--primary:hover:not(:disabled) {
	transform: translateY(-1px);
	box-shadow: 0 14px 32px rgba(127, 90, 240, 0.65);
}

.btn--ghost {
	background: transparent;
	color: var(--color-text-muted);
	border-color: rgba(148, 163, 184, 0.6);
}

.btn--ghost:hover:not(:disabled) {
	border-color: rgba(249, 250, 251, 0.9);
	color: var(--color-text);
	transform: translateY(-1px);
}

.btn--accent {
	background: radial-gradient(
			circle at top left,
			var(--color-accent-secondary),
			transparent 60%
		),
		radial-gradient(circle at bottom right, var(--color-accent), transparent 60%);
	border-color: rgba(56, 189, 248, 0.4);
	color: #f9fafb;
}

.btn--accent:hover:not(:disabled) {
	transform: translateY(-1.5px) scale(1.01);
	box-shadow: 0 14px 26px rgba(34, 211, 238, 0.4);
}
/* Buttons end */

/* =========================================
   Controls section start
========================================= */

.controls__input-group {
	display: flex;
	flex-direction: column;
	gap: 0.45rem;
	margin-bottom: 0.85rem;
}

.controls__label {
	font-size: 0.86rem;
	color: var(--color-text-muted);
}

.controls__textarea {
	resize: vertical;
	min-height: 90px;
	max-height: 170px;
	border-radius: var(--radius-md);
	border: 1px solid rgba(148, 163, 184, 0.6);
	padding: 0.7rem 0.8rem;
	font-size: 0.95rem;
	background: rgba(15, 23, 42, 0.9);
	color: var(--color-text);
	outline: none;
	box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.8);
}

.controls__textarea::placeholder {
	color: rgba(148, 163, 184, 0.7);
}

.controls__textarea:focus {
	border-color: var(--color-accent);
	box-shadow: 0 0 0 1px rgba(127, 90, 240, 0.6);
}

.controls__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	margin-bottom: 0.7rem;
}

.controls__shortcut-hint {
	font-size: 0.8rem;
	color: var(--color-text-muted);
	margin: 0 0 0.6rem;
}

.controls__shortcut-hint span {
	font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
		"Liberation Mono", "Courier New", monospace;
	background: rgba(15, 23, 42, 0.9);
	border-radius: 0.35rem;
	padding: 0.08rem 0.4rem;
	border: 1px solid rgba(148, 163, 184, 0.5);
}

/* Options tags list start */
.options-list-wrapper {
	border-radius: var(--radius-md);
	border: 1px solid rgba(148, 163, 184, 0.3);
	background: linear-gradient(
		135deg,
		rgba(15, 23, 42, 0.7),
		rgba(15, 23, 42, 0.9)
	);
	padding: 0.7rem 0.7rem 0.55rem;
	max-height: 170px;
	overflow-y: auto;
}

.options-list__title {
	font-size: 0.8rem;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	margin: 0 0 0.5rem;
	color: rgba(148, 163, 184, 0.9);
}

.options-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
}

.option-tag {
	font-size: 0.8rem;
	padding: 0.25rem 0.6rem;
	border-radius: 999px;
	background: rgba(15, 23, 42, 0.9);
	border: 1px solid rgba(148, 163, 184, 0.6);
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
}

.option-tag__dot {
	width: 7px;
	height: 7px;
	border-radius: 999px;
	background: radial-gradient(circle at 30% 20%, #f9fafb, #38bdf8);
	box-shadow: 0 0 8px rgba(56, 189, 248, 0.9);
}

.option-tag__text {
	white-space: nowrap;
}

.option-tag__remove {
	cursor: pointer;
	font-size: 0.75rem;
	opacity: 0.7;
	border-radius: 999px;
	padding: 0 0.25rem;
	border: none;
	background: transparent;
	color: var(--color-text-muted);
}

.option-tag__remove:hover {
	opacity: 1;
	background: rgba(248, 250, 252, 0.08);
}

/* Options tags list end */
/* Controls section end */
/* ========================================= */

/* =========================================
   Galaxy section start
========================================= */
.galaxy {
	position: relative;
	border-radius: var(--radius-lg);
	border: 1px solid rgba(148, 163, 184, 0.35);
	background: radial-gradient(circle, rgba(15, 23, 42, 0.3) 0, transparent 60%),
		radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.15), transparent 55%),
		radial-gradient(
			circle at 100% 100%,
			rgba(94, 234, 212, 0.15),
			transparent 55%
		),
		radial-gradient(circle at 50% 120%, rgba(127, 90, 240, 0.35), transparent 65%),
		#020617;
	min-height: 260px;
	max-height: 380px;
	overflow: hidden;
	box-shadow: inset 0 0 60px rgba(15, 23, 42, 0.9);
}

/* Galaxy starfield */
.galaxy::before,
.galaxy::after {
	content: "";
	position: absolute;
	inset: -20%;
	background-image: radial-gradient(
			1px 1px at 10% 20%,
			rgba(248, 250, 252, 0.9),
			transparent
		),
		radial-gradient(1px 1px at 80% 30%, rgba(248, 250, 252, 0.8), transparent),
		radial-gradient(1px 1px at 40% 80%, rgba(248, 250, 252, 0.7), transparent),
		radial-gradient(2px 2px at 20% 70%, rgba(96, 165, 250, 0.9), transparent),
		radial-gradient(2px 2px at 70% 60%, rgba(45, 212, 191, 0.9), transparent);
	opacity: 0.4;
	pointer-events: none;
}

.galaxy::before {
	animation: drift-stars 28s linear infinite;
}

.galaxy::after {
	animation: drift-stars 40s linear infinite reverse;
	opacity: 0.3;
}

/* Orb / planet styles start */
.orb {
	position: absolute;
	width: 72px;
	height: 72px;
	border-radius: 999px;
	background: radial-gradient(
			circle at 30% 20%,
			#f9fafb,
			#e5e7eb 12%,
			transparent 60%
		),
		radial-gradient(circle at 80% 90%, rgba(56, 189, 248, 0.65), transparent 60%),
		radial-gradient(circle at 10% 80%, rgba(129, 140, 248, 0.7), transparent 60%);
	box-shadow: 0 0 20px rgba(56, 189, 248, 0.9), 0 0 60px rgba(37, 99, 235, 0.9);
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0.4rem;
	text-align: center;
	color: #020617;
	font-size: 0.8rem;
	font-weight: 600;
	cursor: default;
	transform-origin: center;
	animation: float-orb 12s ease-in-out infinite;
	backdrop-filter: blur(8px);
}

.orb__label {
	padding: 0 0.15rem;
}

/* Drifting variants for softer movement */
.orb--drift-1 {
	animation-duration: 14s;
}

.orb--drift-2 {
	animation-duration: 17s;
}

.orb--drift-3 {
	animation-duration: 20s;
}

/* Choosing / battle states */
.galaxy--choosing .orb {
	animation-duration: 8s;
	opacity: 0.95;
}

.orb--fighter {
	animation: orb-fighter 1.1s ease-in-out infinite;
}

.orb--knocked-out {
	animation: orb-knockout 0.5s ease forwards;
}

.orb--winner {
	z-index: 3;
	transform: scale(1.3);
	box-shadow: 0 0 30px rgba(251, 191, 36, 1), 0 0 80px rgba(245, 158, 11, 0.9);
}

/* Particle effect start */
.particle {
	position: absolute;
	width: 6px;
	height: 6px;
	border-radius: 999px;
	background: radial-gradient(circle at 30% 20%, #fef9c3, #facc15);
	box-shadow: 0 0 18px rgba(245, 158, 11, 0.9);
	pointer-events: none;
	animation: burst-particle 900ms ease-out forwards;
}
/* Particle effect end */

/* Galaxy section end */
/* ========================================= */

/* =========================================
   Result card & recent history start
========================================= */
.result-card {
	border-radius: var(--radius-lg);
	border: 1px solid rgba(148, 163, 184, 0.4);
	background: linear-gradient(
			135deg,
			rgba(15, 23, 42, 0.85),
			rgba(15, 23, 42, 0.9)
		),
		radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.25), transparent 65%);
	padding: 0.9rem 1rem;
	box-shadow: 0 14px 28px rgba(15, 23, 42, 0.9);
	display: flex;
	flex-direction: column;
	gap: 0.3rem;
	opacity: 0.72;
	transform: translateY(6px) scale(0.99);
	transition: opacity var(--transition-med), transform var(--transition-med);
}

.result-card--visible {
	opacity: 1;
	transform: translateY(0) scale(1);
}

.result-card__label {
	font-size: 0.85rem;
	color: var(--color-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.14em;
}

.result-card__value {
	font-size: 1.1rem;
	font-weight: 600;
}

.result-card__meta {
	font-size: 0.8rem;
	color: var(--color-text-muted);
}

/* Recent history preview */
.recent-history {
	margin-top: 0.9rem;
	border-radius: 1rem;
	border: 1px dashed rgba(148, 163, 184, 0.5);
	padding: 0.6rem 0.8rem;
	font-size: 0.8rem;
	color: var(--color-text-muted);
}

.recent-history__header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 0.35rem;
}

.recent-history__title {
	text-transform: uppercase;
	letter-spacing: 0.16em;
	font-size: 0.78rem;
}

.recent-history__items {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
}

.recent-history__item {
	display: flex;
	justify-content: space-between;
	gap: 0.4rem;
	align-items: center;
}

.recent-history__item-main {
	flex: 1;
	min-width: 0;
}

.recent-history__item-text {
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

/* GitHub link start */
.github-note {
	margin-top: 0.75rem;
	font-size: 0.85rem;
	color: var(--color-text-muted);
}

.github-link {
	color: var(--color-accent-secondary);
	text-decoration: none;
	border-bottom: 1px dotted rgba(45, 212, 191, 0.7);
	padding-bottom: 1px;
}

.github-link:hover {
	color: #a5f3fc;
	border-bottom-style: solid;
}
/* GitHub link end */

/* Result card & recent history end */
/* ========================================= */

/* =========================================
   Footer start
========================================= */
.app__footer {
	text-align: center;
	margin-top: 0.2rem;
}

.app__footer-text {
	margin: 0;
	font-size: 0.8rem;
	color: var(--color-text-muted);
}
/* Footer end */
/* ========================================= */

/* =========================================
   Themes start
   (body gets class theme--galaxy / theme--solar / theme--neon)
========================================= */

body.theme--galaxy {
	background: radial-gradient(circle at top left, #1f2937 0, transparent 55%),
		radial-gradient(circle at bottom right, #020617 0, transparent 60%),
		linear-gradient(135deg, #020617, #020718 40%, #000);
}

body.theme--solar {
	background: radial-gradient(circle at top left, #7c2d12 0, transparent 50%),
		radial-gradient(circle at bottom right, #111827 0, transparent 60%),
		linear-gradient(135deg, #020617, #0f172a 40%, #111827);
}

body.theme--neon {
	background: radial-gradient(circle at top, #38bdf8 0, transparent 45%),
		radial-gradient(circle at bottom, #4ade80 0, transparent 50%),
		linear-gradient(135deg, #020617, #020617 40%, #020617);
}

/* Adjust orb color for themes */
body.theme--solar .orb {
	background: radial-gradient(
			circle at 30% 20%,
			#fef9c3,
			#facc15 18%,
			transparent 62%
		),
		radial-gradient(circle at 80% 90%, rgba(239, 68, 68, 0.8), transparent 60%),
		radial-gradient(circle at 10% 80%, rgba(234, 179, 8, 0.7), transparent 60%);
	box-shadow: 0 0 20px rgba(248, 250, 252, 0.9), 0 0 60px rgba(249, 115, 22, 0.9);
}

body.theme--neon .orb {
	background: radial-gradient(
			circle at 30% 20%,
			#f9fafb,
			#e5e7eb 15%,
			transparent 60%
		),
		radial-gradient(circle at 80% 90%, rgba(56, 189, 248, 0.9), transparent 60%),
		radial-gradient(circle at 10% 80%, rgba(52, 211, 153, 0.9), transparent 60%);
	box-shadow: 0 0 20px rgba(56, 189, 248, 0.95),
		0 0 60px rgba(52, 211, 153, 0.95);
}

/* Themes end */
/* ========================================= */

/* =========================================
   Animations start
========================================= */
@keyframes float-orb {
	0% {
		transform: translate3d(0, 0, 0) scale(1);
	}
	25% {
		transform: translate3d(12px, -16px, 0) scale(1.02);
	}
	50% {
		transform: translate3d(-8px, -4px, 0) scale(0.98);
	}
	75% {
		transform: translate3d(-10px, 16px, 0) scale(1.03);
	}
	100% {
		transform: translate3d(0, 0, 0) scale(1);
	}
}

@keyframes drift-stars {
	0% {
		transform: translate3d(0, 0, 0) rotate(0deg);
	}
	50% {
		transform: translate3d(-12px, -18px, 0) rotate(180deg);
	}
	100% {
		transform: translate3d(0, 0, 0) rotate(360deg);
	}
}

@keyframes burst-particle {
	0% {
		opacity: 1;
		transform: translate3d(0, 0, 0) scale(1);
	}
	100% {
		opacity: 0;
		transform: translate3d(var(--dx, 0), var(--dy, 0), 0) scale(0.6);
	}
}

@keyframes orb-fighter {
	0% {
		transform: translate3d(0, 0, 0) scale(1);
	}
	25% {
		transform: translate3d(4px, -4px, 0) scale(1.03);
	}
	50% {
		transform: translate3d(-3px, 3px, 0) scale(0.98);
	}
	75% {
		transform: translate3d(2px, -2px, 0) scale(1.04);
	}
	100% {
		transform: translate3d(0, 0, 0) scale(1);
	}
}

@keyframes orb-knockout {
	0% {
		transform: translate3d(0, 0, 0) scale(1);
		opacity: 1;
	}
	100% {
		transform: translate3d(0, 40px, 0) scale(0.6);
		opacity: 0;
		filter: blur(2px);
	}
}
/* Animations end */
/* ========================================= */

/* =========================================
   Responsive styles start
========================================= */
@media (max-width: 900px) {
	body {
		padding: 1.1rem;
	}

	.app {
		padding-inline: 1.2rem;
	}

	.app__main {
		grid-template-columns: minmax(0, 1fr);
		grid-template-rows: auto auto auto;
	}

	.panel--controls,
	.panel--galaxy,
	.panel--result {
		grid-row: auto;
	}

	.galaxy {
		min-height: 230px;
		max-height: 300px;
	}
}

@media (max-width: 640px) {
	body {
		padding: 0.7rem;
	}

	.app {
		border-radius: 1.4rem;
		padding-inline: 1rem;
	}

	.app__hero {
		align-items: flex-start;
	}

	.app__toggles {
		width: 100%;
		justify-content: space-between;
	}

	.controls__actions {
		flex-direction: column;
		align-items: stretch;
	}

	.btn {
		justify-content: center;
	}

	.options-list-wrapper {
		max-height: 160px;
	}

	.galaxy {
		min-height: 210px;
		max-height: 260px;
	}

	.orb {
		width: 64px;
		height: 64px;
		font-size: 0.75rem;
	}
}
/* Responsive styles end */
/* ========================================= */