.lupa-form {
	--lupa-form-bg: #ffffff;
	--lupa-field-bg: #f5f5f7;
	--lupa-accent: #2563eb;
	--lupa-button-text: #ffffff;
	--lupa-text: #1b2029;
	--lupa-title-color: #1b2029;
	--lupa-border-color: #d8dce3;
	--lupa-field-height: 46px;
	--lupa-form-width: 480px;
	--lupa-gap: 16px;
	--lupa-radius: 12px;
	--lupa-border-width: 1px;
	--lupa-font-size: 15px;
	--lupa-scale-active: 1.16;
	max-width: var(--lupa-form-width);
	margin: 0 auto;
	font-family: inherit;
	color: var(--lupa-text);
}

.lupa-form__title {
	margin: 0 0 16px;
	text-align: center;
	color: var(--lupa-title-color);
}

.lupa-form__stage {
	position: relative;
	padding: 24px 16px;
	background-color: var(--lupa-form-bg);
	border-radius: var(--lupa-radius);
}

.lupa-form__stack {
	position: relative;
}

.lupa-form__item {
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	transition: transform 460ms cubic-bezier(0.22, 0.61, 0.36, 1);
	will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
	.lupa-form__item,
	.lupa-form__item-inner {
		transition: none !important;
	}
}

.lupa-form__item-inner {
	transform-origin: 50% 50%;
	transition: transform 320ms cubic-bezier(0.22, 0.61, 0.36, 1), opacity 320ms ease, filter 320ms ease;
	padding-bottom: var(--lupa-gap);
}

.lupa-form__item.is-active {
	z-index: 4;
}
.lupa-form__item.is-active .lupa-form__item-inner {
	transform: scale(var(--lupa-scale-active));
	opacity: 1;
	filter: blur(0);
}

.lupa-form__item.is-d1 {
	z-index: 3;
}
.lupa-form__item.is-d1 .lupa-form__item-inner {
	transform: scale(0.94);
	opacity: 0.82;
	filter: blur(0);
}

.lupa-form__item.is-d2 {
	z-index: 2;
}
.lupa-form__item.is-d2 .lupa-form__item-inner {
	transform: scale(0.9);
	opacity: 0.66;
	filter: blur(0.4px);
}

.lupa-form__item.is-d3 {
	z-index: 1;
}
.lupa-form__item.is-d3 .lupa-form__item-inner {
	transform: scale(0.86);
	opacity: 0.52;
	filter: blur(0.8px);
}

.lupa-form__label {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.02em;
	color: var(--lupa-text);
	opacity: 0.65;
	margin-bottom: 6px;
	transition: color 200ms ease, opacity 200ms ease;
}

.lupa-form__item.is-active .lupa-form__label {
	color: var(--lupa-accent);
	opacity: 1;
}

.lupa-form__lens {
	width: 13px;
	height: 13px;
	opacity: 0;
	transform: scale(0.6);
	transition: opacity 200ms ease, transform 200ms ease;
	flex: none;
}

.lupa-form__item.is-active .lupa-form__lens {
	opacity: 1;
	transform: scale(1);
}

.lupa-form__input,
.lupa-form__textarea {
	width: 100%;
	min-height: var(--lupa-field-height);
	font-size: var(--lupa-font-size);
	color: var(--lupa-text);
	background: var(--lupa-field-bg);
	border: var(--lupa-border-width) solid var(--lupa-border-color);
	border-radius: var(--lupa-radius);
	padding: 8px 14px;
	outline: none;
	transition: border-color 200ms ease, box-shadow 200ms ease, background 200ms ease;
	font-family: inherit;
	box-sizing: border-box;
}

.lupa-form__textarea {
	resize: none;
	height: calc(var(--lupa-field-height) * 1.6);
	min-height: calc(var(--lupa-field-height) * 1.6);
}

.lupa-form__item.is-active .lupa-form__input,
.lupa-form__item.is-active .lupa-form__textarea {
	border-color: var(--lupa-accent);
	box-shadow: 0 0 0 4px color-mix(in srgb, var(--lupa-accent) 16%, transparent),
		0 8px 20px -8px color-mix(in srgb, var(--lupa-accent) 45%, transparent);
}

.lupa-form__radio-group {
	display: flex;
	flex-direction: column;
	gap: 6px;
	padding: 10px 14px;
	background: var(--lupa-field-bg);
	border: var(--lupa-border-width) solid var(--lupa-border-color);
	border-radius: var(--lupa-radius);
	box-sizing: border-box;
}
.lupa-form__item.is-active .lupa-form__radio-group {
	border-color: var(--lupa-accent);
	box-shadow: 0 0 0 4px color-mix(in srgb, var(--lupa-accent) 16%, transparent);
}
.lupa-form__radio-option {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: var(--lupa-font-size);
	cursor: pointer;
}

.lupa-form__label--checkbox {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: var(--lupa-font-size);
	font-weight: 400;
	opacity: 1;
	color: var(--lupa-text);
	cursor: pointer;
}
.lupa-form__label--checkbox input {
	width: 18px;
	height: 18px;
	accent-color: var(--lupa-accent);
	flex: none;
}

.lupa-form__submit {
	width: 100%;
	min-height: var(--lupa-field-height);
	font-size: var(--lupa-font-size);
	font-weight: 600;
	color: var(--lupa-button-text);
	background: var(--lupa-accent);
	border: none;
	border-radius: var(--lupa-radius);
	padding: 8px 14px;
	cursor: pointer;
	box-sizing: border-box;
}

.lupa-form__submit:disabled {
	opacity: 0.6;
	cursor: default;
}

.lupa-form__message {
	text-align: center;
	font-size: 13.5px;
	min-height: 1.4em;
	margin: 8px 0 0;
}

.lupa-form__message.is-success {
	color: #1a7f4b;
}

.lupa-form__message.is-error {
	color: #c0392b;
}

.lupa-form__honeypot {
	position: absolute !important;
	left: -9999px !important;
	width: 1px;
	height: 1px;
	overflow: hidden;
}

/* ---- Modo cristal (glassmorphism) ---- */
.lupa-form--glass .lupa-form__stage {
	padding: 30px 24px 26px;
	background-color: rgba(255, 255, 255, 0.16);
	border: 1px solid rgba(255, 255, 255, 0.4);
	border-radius: 20px;
	backdrop-filter: blur(18px) saturate(150%);
	-webkit-backdrop-filter: blur(18px) saturate(150%);
	box-shadow: 0 8px 32px rgba(0, 0, 0, 0.28);
}

.lupa-form--glass .lupa-form__title,
.lupa-form--glass .lupa-form__label,
.lupa-form--glass .lupa-form__label--checkbox {
	color: #fff;
}

.lupa-form--glass .lupa-form__label {
	opacity: 0.78;
}

.lupa-form--glass .lupa-form__item.is-active .lupa-form__label {
	opacity: 1;
	color: #fff;
}

.lupa-form--glass .lupa-form__input,
.lupa-form--glass .lupa-form__textarea,
.lupa-form--glass .lupa-form__radio-group {
	background: rgba(255, 255, 255, 0.14);
	border-color: rgba(255, 255, 255, 0.45);
	color: #fff;
}

.lupa-form--glass .lupa-form__input::placeholder,
.lupa-form--glass .lupa-form__textarea::placeholder {
	color: rgba(255, 255, 255, 0.62);
}

.lupa-form--glass .lupa-form__item.is-active .lupa-form__input,
.lupa-form--glass .lupa-form__item.is-active .lupa-form__textarea,
.lupa-form--glass .lupa-form__item.is-active .lupa-form__radio-group {
	background: rgba(255, 255, 255, 0.28);
	box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.18), 0 8px 20px -8px rgba(0, 0, 0, 0.35);
}

.lupa-form--glass .lupa-form__message.is-success {
	color: #baffd6;
}

.lupa-form--glass .lupa-form__message.is-error {
	color: #ffd2cc;
}