/* =========================================
   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);
	--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, 1.1fr) minmax(0, 1.7fr);
	gap: 1.2rem;
}

.app__main--history {
	align-items: flex-start;
}

.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);
}

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

/* =========================================
   Buttons & small controls 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--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);
}

/* Buttons & small controls end */
/* ========================================= */

/* =========================================
   Summary section start
========================================= */

.panel--summary {
	min-height: 220px;
}

.summary-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0.8rem;
}

.summary-card {
	border-radius: var(--radius-md);
	border: 1px solid rgba(148, 163, 184, 0.4);
	background: linear-gradient(
		135deg,
		rgba(15, 23, 42, 0.9),
		rgba(15, 23, 42, 0.95)
	);
	padding: 0.75rem 0.9rem;
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
	box-shadow: 0 10px 24px rgba(15, 23, 42, 0.8);
}

.summary-card__label {
	font-size: 0.8rem;
	color: var(--color-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.12em;
}

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

/* Summary section end */
/* ========================================= */

/* =========================================
   History list section start
========================================= */

.panel--history {
	min-height: 260px;
}

.history-controls {
	display: flex;
	flex-wrap: wrap;
	gap: 0.8rem;
	margin-bottom: 0.8rem;
}

.history-controls__group {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

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

.history-controls__select {
	border-radius: 999px;
	padding: 0.35rem 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);
}

/* History rows */
.history-list {
	display: flex;
	flex-direction: column;
	gap: 0.6rem;
	max-height: 420px;
	overflow-y: auto;
	padding-right: 0.3rem;
}

.history-item {
	border-radius: var(--radius-md);
	border: 1px solid rgba(148, 163, 184, 0.4);
	background: rgba(15, 23, 42, 0.9);
	padding: 0.7rem 0.8rem;
	display: grid;
	grid-template-columns: minmax(0, 2.2fr) minmax(0, 2fr) auto;
	gap: 0.6rem;
	align-items: center;
	font-size: 0.85rem;
}

.history-item__meta {
	display: flex;
	flex-direction: column;
	gap: 0.15rem;
}

.history-item__title {
	font-weight: 500;
}

.history-item__sub {
	font-size: 0.78rem;
	color: var(--color-text-muted);
}

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

.history-item__options-label {
	font-size: 0.78rem;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: rgba(148, 163, 184, 0.9);
	margin-bottom: 0.1rem;
}

.history-item__options-text {
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

/* Empty state */
.history-empty {
	margin-top: 0.8rem;
	border-radius: var(--radius-md);
	border: 1px dashed rgba(148, 163, 184, 0.5);
	padding: 0.7rem 0.9rem;
	font-size: 0.85rem;
	color: var(--color-text-muted);
	display: none; /* JS will toggle */
}

.history-empty__link {
	color: var(--color-accent-secondary);
	text-decoration: none;
}

.history-empty__link:hover {
	text-decoration: underline;
}

/* History list section 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);
}

/* GitHub link styling (reuse from main) */
.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;
}
/* Footer 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);
	}

	.summary-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.history-item {
		grid-template-columns: minmax(0, 1.8fr) minmax(0, 2fr);
		grid-template-rows: auto auto;
	}

	.history-item > .btn {
		grid-column: 1 / -1;
		justify-content: flex-start;
	}
}

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

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

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

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

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

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

	.history-item > .btn {
		justify-content: center;
	}
}
/* Responsive styles end */
/* ========================================= */