/* ============================================================================
   OAI Translator Pro — Frontend Premium Styles v1.1.1
   Adapts to any theme via CSS custom properties + inherit strategy.
   Smooth micro-interactions, accessible focus states, glass-morphism floating.
   ============================================================================ */

/* ─── Custom Properties (overridable by theme) ──────────────────────────── */
:root {
	--oai-sw-font: inherit;
	--oai-sw-size: inherit;
	--oai-sw-color: currentColor;
	--oai-sw-bg: transparent;
	--oai-sw-border: currentColor;
	--oai-sw-radius: 8px;
	--oai-sw-active-bg: rgba(79, 70, 229, .1);
	--oai-sw-active-border: #4f46e5;
	--oai-sw-active-color: #4f46e5;
	--oai-sw-hover-bg: rgba(0, 0, 0, .04);
	--oai-sw-gap: 6px;
	--oai-sw-transition: 180ms cubic-bezier(.4, 0, .2, 1);
}

/* ─── Base Switcher Container ───────────────────────────────────────────── */
.oai-switcher {
	display: inline-flex;
	align-items: center;
	position: relative;
	font-family: var(--oai-sw-font);
	font-size: var(--oai-sw-size);
	line-height: inherit;
}

.oai-switcher--align-center { justify-content: center; }
.oai-switcher--align-right  { justify-content: flex-end; }

/* ─── Dropdown Style ────────────────────────────────────────────────────── */
.oai-select {
	font-family: var(--oai-sw-font);
	font-size: var(--oai-sw-size);
	color: var(--oai-sw-color);
	background-color: var(--oai-sw-bg);
	border: 1.5px solid rgba(128, 128, 128, .3);
	border-radius: var(--oai-sw-radius);
	padding: 8px 32px 8px 12px;
	cursor: pointer;
	appearance: none;
	-webkit-appearance: none;
	min-width: 140px;
	line-height: 1.4;
	transition:
		border-color var(--oai-sw-transition),
		box-shadow var(--oai-sw-transition),
		background-color var(--oai-sw-transition);
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 4.5l3 3 3-3'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 10px center;
	background-size: 14px;
}

.oai-select:hover {
	border-color: rgba(128, 128, 128, .5);
	background-color: var(--oai-sw-hover-bg);
}

.oai-select:focus {
	outline: none;
	border-color: var(--oai-sw-active-border);
	box-shadow: 0 0 0 3px rgba(79, 70, 229, .15);
}

/* ─── Flags Style ───────────────────────────────────────────────────────── */
.oai-flags {
	display: inline-flex;
	flex-wrap: wrap;
	gap: var(--oai-sw-gap);
	align-items: center;
}

.oai-flag-btn {
	background: none;
	border: 2px solid transparent;
	border-radius: var(--oai-sw-radius);
	padding: 4px 6px;
	font-size: 1.5em;
	cursor: pointer;
	line-height: 1;
	transition:
		border-color var(--oai-sw-transition),
		transform var(--oai-sw-transition),
		background-color var(--oai-sw-transition),
		box-shadow var(--oai-sw-transition);
	position: relative;
}

.oai-flag-btn:hover {
	border-color: rgba(128, 128, 128, .3);
	background: var(--oai-sw-hover-bg);
	transform: scale(1.08);
}

.oai-flag-btn--active {
	border-color: var(--oai-sw-active-border);
	background: var(--oai-sw-active-bg);
	box-shadow: 0 0 0 2px rgba(79, 70, 229, .12);
}

.oai-flag-btn--active:hover {
	border-color: var(--oai-sw-active-border);
}

/* ─── List Style ────────────────────────────────────────────────────────── */
.oai-lang-list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: inline-flex;
	flex-wrap: wrap;
	gap: var(--oai-sw-gap);
	align-items: center;
}

.oai-lang-btn {
	font-family: var(--oai-sw-font);
	font-size: 0.82em;
	color: var(--oai-sw-color);
	background: transparent;
	border: 1.5px solid rgba(128, 128, 128, .25);
	border-radius: var(--oai-sw-radius);
	padding: 5px 12px;
	cursor: pointer;
	transition:
		background var(--oai-sw-transition),
		color var(--oai-sw-transition),
		border-color var(--oai-sw-transition),
		box-shadow var(--oai-sw-transition),
		transform var(--oai-sw-transition);
	text-transform: uppercase;
	font-weight: 600;
	letter-spacing: .6px;
	line-height: 1.4;
}

.oai-lang-btn:hover {
	border-color: rgba(128, 128, 128, .4);
	background: var(--oai-sw-hover-bg);
	transform: translateY(-1px);
}

.oai-lang-btn--active {
	background: var(--oai-sw-active-bg);
	color: var(--oai-sw-active-color);
	border-color: var(--oai-sw-active-border);
	box-shadow: 0 2px 4px rgba(79, 70, 229, .12);
	font-weight: 700;
}

/* ─── Combined Style (flag + name) ──────────────────────────────────────── */
.oai-combined {
	display: inline-flex;
	flex-wrap: wrap;
	gap: var(--oai-sw-gap);
}

.oai-combined-btn {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-family: var(--oai-sw-font);
	font-size: 0.9em;
	color: var(--oai-sw-color);
	background: transparent;
	border: 1.5px solid transparent;
	border-radius: var(--oai-sw-radius);
	padding: 5px 12px;
	cursor: pointer;
	transition:
		border-color var(--oai-sw-transition),
		background var(--oai-sw-transition),
		box-shadow var(--oai-sw-transition),
		transform var(--oai-sw-transition);
	line-height: 1.4;
}

.oai-combined-btn:hover {
	border-color: rgba(128, 128, 128, .3);
	background: var(--oai-sw-hover-bg);
	transform: translateY(-1px);
}

.oai-combined-btn--active {
	border-color: var(--oai-sw-active-border);
	background: var(--oai-sw-active-bg);
	font-weight: 600;
	box-shadow: 0 2px 4px rgba(79, 70, 229, .1);
}

.oai-combined-flag {
	font-size: 1.25em;
	line-height: 1;
	flex-shrink: 0;
}

/* ─── Loading Overlay ───────────────────────────────────────────────────── */
.oai-loading-overlay {
	position: fixed;
	bottom: 24px;
	right: 24px;
	background: rgba(15, 23, 42, .88);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	color: #fff;
	padding: 12px 20px;
	border-radius: 12px;
	font-size: 13px;
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	display: flex;
	align-items: center;
	gap: 10px;
	z-index: 99999;
	box-shadow:
		0 8px 32px rgba(0, 0, 0, .25),
		0 0 0 1px rgba(255, 255, 255, .08) inset;
	animation: oai-slide-in .3s cubic-bezier(.16, 1, .3, 1);
}

@keyframes oai-slide-in {
	from {
		opacity: 0;
		transform: translateY(12px) scale(.96);
	}
	to {
		opacity: 1;
		transform: translateY(0) scale(1);
	}
}

.oai-spinner {
	width: 16px;
	height: 16px;
	border: 2px solid rgba(255, 255, 255, .25);
	border-top-color: #fff;
	border-radius: 50%;
	animation: oai-spin .65s linear infinite;
	display: inline-block;
	flex-shrink: 0;
}

@keyframes oai-spin {
	to { transform: rotate(360deg); }
}

/* ─── Floating Switcher ─────────────────────────────────────────────────── */
.oai-switcher--floating {
	position: fixed;
	bottom: 24px;
	right: 24px;
	z-index: 9999;
	background: rgba(255, 255, 255, .92);
	backdrop-filter: blur(16px) saturate(180%);
	-webkit-backdrop-filter: blur(16px) saturate(180%);
	border: 1px solid rgba(0, 0, 0, .08);
	border-radius: 14px;
	padding: 10px 14px;
	box-shadow:
		0 8px 32px rgba(0, 0, 0, .12),
		0 2px 8px rgba(0, 0, 0, .06);
	animation: oai-float-in .4s cubic-bezier(.16, 1, .3, 1);
}

@keyframes oai-float-in {
	from {
		opacity: 0;
		transform: translateY(16px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* Dark mode support for floating */
@media (prefers-color-scheme: dark) {
	.oai-switcher--floating {
		background: rgba(30, 41, 59, .92);
		border-color: rgba(255, 255, 255, .08);
		box-shadow:
			0 8px 32px rgba(0, 0, 0, .4),
			0 0 0 1px rgba(255, 255, 255, .05) inset;
	}

	.oai-switcher--floating .oai-select {
		color: #e2e8f0;
		border-color: rgba(255, 255, 255, .15);
	}

	.oai-switcher--floating .oai-lang-btn,
	.oai-switcher--floating .oai-combined-btn {
		color: #e2e8f0;
	}
}

/* ─── Nav Menu Integration ──────────────────────────────────────────────── */
.oai-menu-item {
	display: flex;
	align-items: center;
}

.oai-menu-item .oai-switcher {
	margin: 0;
}

.oai-menu-item .oai-select {
	border-color: transparent;
	padding: 4px 28px 4px 8px;
	min-width: auto;
	font-size: inherit;
}

.oai-menu-item .oai-select:hover {
	border-color: rgba(128, 128, 128, .2);
}

/* ─── Accessibility ─────────────────────────────────────────────────────── */
.oai-flag-btn:focus-visible,
.oai-lang-btn:focus-visible,
.oai-combined-btn:focus-visible,
.oai-select:focus-visible {
	outline: 2px solid var(--oai-sw-active-border);
	outline-offset: 2px;
}

/* Keyboard focus ring — visible only on keyboard nav */
.oai-flag-btn:focus:not(:focus-visible),
.oai-lang-btn:focus:not(:focus-visible),
.oai-combined-btn:focus:not(:focus-visible) {
	outline: none;
}

/* ─── High Contrast ─────────────────────────────────────────────────────── */
@media (prefers-contrast: more) {
	.oai-flag-btn,
	.oai-lang-btn,
	.oai-combined-btn,
	.oai-select {
		border-width: 2px;
	}

	.oai-flag-btn--active,
	.oai-lang-btn--active,
	.oai-combined-btn--active {
		border-width: 3px;
	}
}

/* ─── Reduced Motion ────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
	.oai-flag-btn,
	.oai-lang-btn,
	.oai-combined-btn,
	.oai-select,
	.oai-loading-overlay,
	.oai-switcher--floating {
		transition: none;
		animation: none;
	}

	.oai-flag-btn:hover {
		transform: none;
	}
}

/* ─── Print ─────────────────────────────────────────────────────────────── */
@media print {
	.oai-switcher,
	.oai-switcher--floating,
	.oai-loading-overlay {
		display: none !important;
	}
}