/**
 * Pollux Labs Feedback Survey – front-end styles.
 *
 * Self-contained, no external libraries. Theming via CSS custom properties.
 * Automatic dark mode through prefers-color-scheme.
 */

.plfs-survey {
	--plfs-accent: #2563eb;
	--plfs-accent-contrast: #ffffff;
	--plfs-bg: #ffffff;
	--plfs-fg: #1f2330;
	--plfs-muted: #5b6472;
	--plfs-border: #e2e6ee;
	--plfs-field-bg: #ffffff;
	--plfs-field-border: #c8cfdc;
	--plfs-option-bg: #f7f9fc;
	--plfs-option-hover: #eef2f9;
	--plfs-error: #d6336c;
	--plfs-shadow: 0 10px 30px rgba(20, 30, 60, 0.08), 0 2px 6px rgba(20, 30, 60, 0.05);
	--plfs-radius: 16px;
	--plfs-radius-sm: 10px;

	max-width: 720px;
	margin: 1.5rem auto;
	color: var(--plfs-fg);
	font-size: 16px;
	line-height: 1.55;
	box-sizing: border-box;
}

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

.plfs-card {
	background: var(--plfs-bg);
	border: 1px solid var(--plfs-border);
	border-radius: var(--plfs-radius);
	box-shadow: var(--plfs-shadow);
	padding: clamp(1.25rem, 4vw, 2.5rem);
}

/* Intro ------------------------------------------------------------------- */
.plfs-intro {
	margin-bottom: 1.75rem;
}

.plfs-intro__title {
	margin: 0 0 0.75rem;
	font-size: clamp(1.4rem, 3.5vw, 1.85rem);
	line-height: 1.25;
	font-weight: 700;
}

.plfs-intro__text {
	margin: 0 0 0.5rem;
	color: var(--plfs-muted);
}

/* Questions --------------------------------------------------------------- */
.plfs-q {
	border: none;
	margin: 0 0 1.75rem;
	padding: 0;
}

.plfs-q__legend {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 0.4rem;
	padding: 0;
	margin-bottom: 0.85rem;
	font-weight: 600;
	font-size: 1.05rem;
}

.plfs-q__number {
	color: var(--plfs-accent);
	font-variant-numeric: tabular-nums;
}

.plfs-q__required {
	color: var(--plfs-error);
}

.plfs-q__sublabel {
	display: block;
	margin: 0.85rem 0 0.4rem;
	font-weight: 600;
	color: var(--plfs-muted);
}

/* Options (radio / checkbox) --------------------------------------------- */
.plfs-options {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
	gap: 0.6rem;
}

.plfs-option {
	display: flex;
	align-items: center;
	gap: 0.65rem;
	padding: 0.7rem 0.85rem;
	background: var(--plfs-option-bg);
	border: 1px solid var(--plfs-border);
	border-radius: var(--plfs-radius-sm);
	cursor: pointer;
	transition: background-color 0.15s ease, border-color 0.15s ease;
}

.plfs-option:hover {
	background: var(--plfs-option-hover);
}

.plfs-option input {
	position: absolute;
	opacity: 0;
	width: 1px;
	height: 1px;
}

.plfs-option__box {
	flex: 0 0 auto;
	width: 20px;
	height: 20px;
	border: 2px solid var(--plfs-field-border);
	background: var(--plfs-field-bg);
	display: inline-block;
	position: relative;
	transition: border-color 0.15s ease, background-color 0.15s ease;
}

.plfs-option input[type="radio"] + .plfs-option__box {
	border-radius: 50%;
}

.plfs-option input[type="checkbox"] + .plfs-option__box {
	border-radius: 6px;
}

.plfs-option input:checked + .plfs-option__box {
	border-color: var(--plfs-accent);
	background: var(--plfs-accent);
}

.plfs-option input[type="radio"]:checked + .plfs-option__box::after {
	content: "";
	position: absolute;
	inset: 4px;
	border-radius: 50%;
	background: var(--plfs-accent-contrast);
}

.plfs-option input[type="checkbox"]:checked + .plfs-option__box::after {
	content: "";
	position: absolute;
	left: 6px;
	top: 2px;
	width: 5px;
	height: 10px;
	border: solid var(--plfs-accent-contrast);
	border-width: 0 2px 2px 0;
	transform: rotate(45deg);
}

.plfs-option input:focus-visible + .plfs-option__box {
	outline: 2px solid var(--plfs-accent);
	outline-offset: 2px;
}

.plfs-option__label {
	user-select: none;
}

/* "Other" text field ------------------------------------------------------ */
.plfs-other {
	margin-top: 0.6rem;
	display: none;
}

.plfs-other.is-visible {
	display: block;
}

/* Inputs / textareas ------------------------------------------------------ */
.plfs-input,
.plfs-textarea {
	width: 100%;
	padding: 0.7rem 0.85rem;
	font: inherit;
	color: var(--plfs-fg);
	background: var(--plfs-field-bg);
	border: 1px solid var(--plfs-field-border);
	border-radius: var(--plfs-radius-sm);
	resize: vertical;
}

.plfs-input:focus,
.plfs-textarea:focus {
	outline: none;
	border-color: var(--plfs-accent);
	box-shadow: 0 0 0 3px color-mix(in srgb, var(--plfs-accent) 25%, transparent);
}

/* NPS scale --------------------------------------------------------------- */
.plfs-nps {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
}

.plfs-nps__item {
	cursor: pointer;
}

.plfs-nps__item input {
	position: absolute;
	opacity: 0;
	width: 1px;
	height: 1px;
}

.plfs-nps__value {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	border: 1px solid var(--plfs-field-border);
	border-radius: var(--plfs-radius-sm);
	background: var(--plfs-option-bg);
	font-weight: 600;
	font-variant-numeric: tabular-nums;
	transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.plfs-nps__item:hover .plfs-nps__value {
	border-color: var(--plfs-accent);
}

.plfs-nps__item input:checked + .plfs-nps__value {
	background: var(--plfs-accent);
	border-color: var(--plfs-accent);
	color: var(--plfs-accent-contrast);
}

.plfs-nps__item input:focus-visible + .plfs-nps__value {
	outline: 2px solid var(--plfs-accent);
	outline-offset: 2px;
}

.plfs-nps__legend {
	display: flex;
	justify-content: space-between;
	margin-top: 0.45rem;
	font-size: 0.85rem;
	color: var(--plfs-muted);
}

.plfs-nps__reason {
	margin-top: 0.5rem;
}

/* Errors ------------------------------------------------------------------ */
.plfs-q__error,
.plfs-form__error {
	color: var(--plfs-error);
	font-size: 0.9rem;
	margin: 0.5rem 0 0;
}

.plfs-form__error {
	padding: 0.75rem 1rem;
	border: 1px solid var(--plfs-error);
	border-radius: var(--plfs-radius-sm);
	background: color-mix(in srgb, var(--plfs-error) 8%, transparent);
	margin-bottom: 1.25rem;
}

.plfs-q--error .plfs-option,
.plfs-q--error .plfs-input,
.plfs-q--error .plfs-textarea,
.plfs-q--error .plfs-nps__value {
	border-color: var(--plfs-error);
}

/* Actions / button -------------------------------------------------------- */
.plfs-actions {
	margin-top: 1.75rem;
}

.plfs-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	min-height: 48px;
	padding: 0.75rem 1.75rem;
	font: inherit;
	font-weight: 600;
	color: var(--plfs-accent-contrast);
	background: var(--plfs-accent);
	border: none;
	border-radius: var(--plfs-radius-sm);
	cursor: pointer;
	transition: filter 0.15s ease, transform 0.05s ease;
}

.plfs-button:hover {
	filter: brightness(1.07);
}

.plfs-button:active {
	transform: translateY(1px);
}

.plfs-button:focus-visible {
	outline: 2px solid var(--plfs-accent);
	outline-offset: 3px;
}

.plfs-button:disabled,
.plfs-button.is-loading {
	opacity: 0.7;
	cursor: progress;
}

/* Step-by-step mode ------------------------------------------------------- */
.plfs-steps__progress {
	margin: 0 0 1rem;
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--plfs-muted);
	font-variant-numeric: tabular-nums;
}

.plfs-survey--stepped .plfs-q {
	margin-bottom: 1rem;
}

.plfs-steps__nav {
	display: flex;
	gap: 0.75rem;
	align-items: center;
	justify-content: flex-end;
	margin-top: 1.5rem;
}

.plfs-steps__back {
	margin-right: auto;
}

.plfs-steps__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 44px;
	padding: 0.6rem 1.4rem;
	font: inherit;
	font-weight: 600;
	cursor: pointer;
	border-radius: var(--plfs-radius-sm);
	transition: filter 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.plfs-steps__next {
	color: var(--plfs-accent-contrast);
	background: var(--plfs-accent);
	border: none;
}

.plfs-steps__next:hover {
	filter: brightness(1.07);
}

.plfs-steps__back {
	color: var(--plfs-fg);
	background: transparent;
	border: 1px solid var(--plfs-field-border);
}

.plfs-steps__back:hover {
	background: var(--plfs-option-bg);
}

.plfs-steps__btn:focus-visible {
	outline: 2px solid var(--plfs-accent);
	outline-offset: 2px;
}

/* In stepped mode the submit button sits on the last step and fills the row. */
.plfs-survey--stepped .plfs-actions {
	margin-top: 0.75rem;
}

/* Thank-you state --------------------------------------------------------- */
.plfs-thankyou {
	text-align: center;
	padding: 1.5rem 0.5rem;
}

.plfs-thankyou__icon {
	color: var(--plfs-accent);
	margin-bottom: 0.75rem;
}

.plfs-thankyou__text {
	font-size: 1.15rem;
	margin: 0;
}

.plfs-thankyou:focus {
	outline: none;
}

/* Honeypot ---------------------------------------------------------------- */
.plfs-hp {
	position: absolute !important;
	left: -9999px !important;
	width: 1px;
	height: 1px;
	overflow: hidden;
}

/* Screen-reader-only helper (in case the theme lacks one) ----------------- */
.plfs-survey .screen-reader-text {
	position: absolute;
	width: 1px;
	height: 1px;
	margin: -1px;
	padding: 0;
	border: 0;
	overflow: hidden;
	clip: rect(0 0 0 0);
	clip-path: inset(50%);
	white-space: nowrap;
}

/* Dark mode --------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
	.plfs-survey {
		--plfs-bg: #1b1f2a;
		--plfs-fg: #e7eaf1;
		--plfs-muted: #a6adbb;
		--plfs-border: #2c3242;
		--plfs-field-bg: #232838;
		--plfs-field-border: #3a4256;
		--plfs-option-bg: #232838;
		--plfs-option-hover: #2a3144;
		--plfs-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.3);
	}
}

/* Reduced motion ---------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
	.plfs-survey * {
		transition: none !important;
	}
}

/* Small screens ----------------------------------------------------------- */
@media (max-width: 480px) {
	.plfs-options {
		grid-template-columns: 1fr;
	}

	.plfs-nps__value {
		width: 38px;
		height: 38px;
	}

	.plfs-button {
		width: 100%;
	}
}