/**
 * DSAND Smart BMI Calculator - Front-end styles
 * Design language: purple gradient, glassmorphism, soft shadows, mobile-first.
 */

.dsand-bmi-wrapper {
	--dsand-primary: #704293;
	--dsand-primary-dark: #4f2e6a;
	--dsand-secondary: #ffffff;
	--dsand-accent: #F5F0FA;
	--dsand-text: #2c1f38;
	--dsand-muted: #7a6d88;
	--dsand-danger: #d64550;
	--dsand-success: #2e9e6c;
	--dsand-warning: #d9a531;
	--dsand-radius: 20px;
	--dsand-shadow: 0 10px 40px rgba(112, 66, 147, 0.18);
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
	max-width: 640px;
	margin: 2rem auto;
	box-sizing: border-box;
}

.dsand-bmi-wrapper *,
.dsand-bmi-wrapper *::before,
.dsand-bmi-wrapper *::after {
	box-sizing: border-box;
}

/* Card */
.dsand-bmi-card {
	background: linear-gradient(145deg, rgba(255,255,255,0.85), rgba(245,240,250,0.9));
	backdrop-filter: blur(14px);
	-webkit-backdrop-filter: blur(14px);
	border: 1px solid rgba(255,255,255,0.6);
	border-radius: var(--dsand-radius);
	box-shadow: var(--dsand-shadow);
	padding: 2rem 1.75rem;
	animation: dsandFadeUp 0.5s ease both;
}

@keyframes dsandFadeUp {
	from { opacity: 0; transform: translateY(16px); }
	to { opacity: 1; transform: translateY(0); }
}

.dsand-bmi-card-header h2 {
	margin: 0 0 0.35rem;
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--dsand-primary-dark);
	letter-spacing: -0.02em;
}

.dsand-bmi-card-header p {
	margin: 0 0 1.5rem;
	color: var(--dsand-muted);
	font-size: 0.95rem;
}

/* Fieldsets */
.dsand-bmi-fieldset {
	border: none;
	margin: 0 0 1.25rem;
	padding: 0;
}

.dsand-bmi-fieldset legend {
	font-weight: 600;
	color: var(--dsand-primary);
	font-size: 0.85rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	margin-bottom: 0.75rem;
	padding: 0;
}

.dsand-bmi-field {
	margin-bottom: 1rem;
}

.dsand-bmi-field label {
	display: block;
	font-size: 0.88rem;
	font-weight: 600;
	color: var(--dsand-text);
	margin-bottom: 0.35rem;
}

.dsand-bmi-field .req {
	color: var(--dsand-danger);
}

.dsand-bmi-field input[type="text"],
.dsand-bmi-field input[type="tel"],
.dsand-bmi-field input[type="number"],
.dsand-bmi-field select {
	width: 100%;
	padding: 0.7rem 0.9rem;
	border-radius: 12px;
	border: 1.5px solid rgba(112, 66, 147, 0.18);
	background: rgba(255,255,255,0.75);
	font-size: 1rem;
	color: var(--dsand-text);
	transition: border-color 0.2s ease, box-shadow 0.2s ease;
	appearance: none;
}

.dsand-bmi-field input:focus,
.dsand-bmi-field select:focus {
	outline: none;
	border-color: var(--dsand-primary);
	box-shadow: 0 0 0 4px rgba(112, 66, 147, 0.14);
}

.dsand-bmi-field input.dsand-bmi-invalid,
.dsand-bmi-field select.dsand-bmi-invalid {
	border-color: var(--dsand-danger);
	box-shadow: 0 0 0 4px rgba(214, 69, 80, 0.12);
}

.dsand-bmi-input-group {
	display: flex;
	gap: 0.5rem;
}

.dsand-bmi-input-group input {
	flex: 1;
}

.dsand-bmi-unit-select {
	flex: 0 0 auto;
	width: auto !important;
	min-width: 80px;
}

.dsand-bmi-error {
	display: block;
	color: var(--dsand-danger);
	font-size: 0.78rem;
	margin-top: 0.3rem;
	min-height: 1em;
}

.dsand-bmi-form-error {
	color: var(--dsand-danger);
	font-size: 0.85rem;
	text-align: center;
	margin: 0.5rem 0 0;
}

/* Submit button */
.dsand-bmi-submit-btn {
	width: 100%;
	padding: 0.95rem 1.5rem;
	border: none;
	border-radius: 14px;
	background: linear-gradient(135deg, var(--dsand-primary) 0%, #9159c2 100%);
	color: #fff;
	font-size: 1.05rem;
	font-weight: 700;
	cursor: pointer;
	box-shadow: 0 8px 24px rgba(112, 66, 147, 0.35);
	transition: transform 0.15s ease, box-shadow 0.15s ease;
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.6rem;
}

.dsand-bmi-submit-btn:hover {
	transform: translateY(-2px);
	box-shadow: 0 12px 28px rgba(112, 66, 147, 0.45);
}

.dsand-bmi-submit-btn:active {
	transform: translateY(0);
}

.dsand-bmi-submit-btn:disabled {
	opacity: 0.7;
	cursor: not-allowed;
	transform: none;
}

.dsand-bmi-btn-spinner {
	display: none;
	width: 16px;
	height: 16px;
	border: 2px solid rgba(255,255,255,0.4);
	border-top-color: #fff;
	border-radius: 50%;
	animation: dsandSpin 0.7s linear infinite;
}

.dsand-bmi-submit-btn.is-loading .dsand-bmi-btn-spinner {
	display: inline-block;
}

@keyframes dsandSpin {
	to { transform: rotate(360deg); }
}

/* Modal */
.dsand-bmi-modal-overlay {
	position: fixed;
	inset: 0;
	background: rgba(44, 31, 56, 0.55);
	backdrop-filter: blur(4px);
	display: none;
	align-items: center;
	justify-content: center;
	z-index: 100000;
	padding: 1rem;
	opacity: 0;
	transition: opacity 0.25s ease;
}

.dsand-bmi-modal-overlay.is-open {
	display: flex;
	opacity: 1;
}

.dsand-bmi-modal {
	position: relative;
	background: linear-gradient(160deg, #ffffff 0%, var(--dsand-accent) 100%);
	border-radius: 24px;
	max-width: 560px;
	width: 100%;
	max-height: 88vh;
	overflow-y: auto;
	padding: 2rem 1.75rem;
	box-shadow: 0 24px 64px rgba(44, 31, 56, 0.35);
	transform: scale(0.92) translateY(20px);
	transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dsand-bmi-modal-overlay.is-open .dsand-bmi-modal {
	transform: scale(1) translateY(0);
}

.dsand-bmi-confetti-canvas {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	pointer-events: none;
	z-index: 1;
}

.dsand-bmi-modal-content {
	position: relative;
	z-index: 2;
}

.dsand-bmi-modal-close {
	position: absolute;
	top: 1rem;
	right: 1rem;
	width: 36px;
	height: 36px;
	border-radius: 50%;
	border: none;
	background: rgba(112, 66, 147, 0.1);
	color: var(--dsand-primary-dark);
	font-size: 1.4rem;
	line-height: 1;
	cursor: pointer;
	z-index: 3;
	transition: background 0.2s ease;
}

.dsand-bmi-modal-close:hover {
	background: rgba(112, 66, 147, 0.22);
}

/* Result content */
.dsand-bmi-result-greeting {
	font-size: 1rem;
	color: var(--dsand-muted);
	margin: 0 0 0.15rem;
}

.dsand-bmi-result-name {
	font-size: 1.3rem;
	font-weight: 700;
	color: var(--dsand-primary-dark);
	margin: 0 0 1.25rem;
}

.dsand-bmi-score-wrap {
	display: flex;
	align-items: center;
	gap: 1.25rem;
	margin-bottom: 1.5rem;
}

.dsand-bmi-progress {
	position: relative;
	width: 108px;
	height: 108px;
	flex-shrink: 0;
}

.dsand-bmi-progress svg {
	transform: rotate(-90deg);
	width: 100%;
	height: 100%;
}

.dsand-bmi-progress circle {
	fill: none;
	stroke-width: 10;
}

.dsand-bmi-progress .dsand-bmi-progress-bg {
	stroke: rgba(112, 66, 147, 0.12);
}

.dsand-bmi-progress .dsand-bmi-progress-fill {
	stroke: var(--dsand-primary);
	stroke-linecap: round;
	transition: stroke-dashoffset 1s ease;
}

.dsand-bmi-progress-value {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
}

.dsand-bmi-progress-value strong {
	font-size: 1.6rem;
	color: var(--dsand-primary-dark);
	line-height: 1;
}

.dsand-bmi-progress-value span {
	font-size: 0.7rem;
	color: var(--dsand-muted);
	text-transform: uppercase;
	letter-spacing: 0.05em;
}

.dsand-bmi-badge {
	display: inline-block;
	padding: 0.3rem 0.85rem;
	border-radius: 999px;
	font-size: 0.8rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.03em;
}

.dsand-bmi-badge-underweight { background: #fdf1d3; color: #a4740c; }
.dsand-bmi-badge-healthy { background: #dff5e8; color: #1c7a4c; }
.dsand-bmi-badge-overweight { background: #fde8d3; color: #b5590c; }
.dsand-bmi-badge-obese { background: #fbdfe0; color: #b3232f; }

.dsand-bmi-stats-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 0.75rem;
	margin-bottom: 1.5rem;
}

.dsand-bmi-stat-box {
	background: rgba(255,255,255,0.7);
	border: 1px solid rgba(112, 66, 147, 0.12);
	border-radius: 14px;
	padding: 0.85rem 1rem;
}

.dsand-bmi-stat-box .label {
	display: block;
	font-size: 0.72rem;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--dsand-muted);
	margin-bottom: 0.25rem;
}

.dsand-bmi-stat-box .value {
	font-size: 1.15rem;
	font-weight: 700;
	color: var(--dsand-primary-dark);
}

.dsand-bmi-advice-section {
	margin-bottom: 1.25rem;
}

.dsand-bmi-advice-section h4 {
	margin: 0 0 0.35rem;
	font-size: 0.95rem;
	color: var(--dsand-primary);
}

.dsand-bmi-advice-section p {
	margin: 0;
	font-size: 0.9rem;
	color: var(--dsand-text);
	line-height: 1.5;
}

.dsand-bmi-products-heading {
	font-size: 1.05rem;
	font-weight: 700;
	color: var(--dsand-primary-dark);
	margin: 1.5rem 0 1rem;
}

.dsand-bmi-product-card {
	display: flex;
	gap: 1rem;
	background: rgba(255,255,255,0.8);
	border: 1px solid rgba(112, 66, 147, 0.12);
	border-radius: 16px;
	padding: 1rem;
	margin-bottom: 0.9rem;
	align-items: center;
}

.dsand-bmi-product-card img {
	width: 72px;
	height: 72px;
	object-fit: cover;
	border-radius: 10px;
	flex-shrink: 0;
	background: #f2eaf7;
}

.dsand-bmi-product-info {
	flex: 1;
	min-width: 0;
}

.dsand-bmi-product-info .name {
	font-weight: 700;
	color: var(--dsand-text);
	font-size: 0.95rem;
	margin: 0 0 0.15rem;
}

.dsand-bmi-product-info .desc {
	font-size: 0.8rem;
	color: var(--dsand-muted);
	margin: 0 0 0.4rem;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.dsand-bmi-product-info .price {
	font-weight: 700;
	color: var(--dsand-primary-dark);
	font-size: 0.9rem;
}

.dsand-bmi-product-actions {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
	flex-shrink: 0;
}

.dsand-bmi-product-actions a {
	text-align: center;
	white-space: nowrap;
	font-size: 0.8rem;
	font-weight: 700;
	padding: 0.45rem 0.9rem;
	border-radius: 10px;
	text-decoration: none;
	transition: opacity 0.2s ease;
}

.dsand-bmi-product-actions a:hover { opacity: 0.85; }

.dsand-bmi-add-to-cart {
	background: rgba(112, 66, 147, 0.12);
	color: var(--dsand-primary-dark);
}

.dsand-bmi-buy-now {
	background: linear-gradient(135deg, var(--dsand-primary) 0%, #9159c2 100%);
	color: #fff;
}

.dsand-bmi-share-row {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	margin-top: 1.5rem;
	padding-top: 1.25rem;
	border-top: 1px solid rgba(112, 66, 147, 0.14);
}

.dsand-bmi-share-btn {
	flex: 1;
	min-width: 120px;
	text-align: center;
	padding: 0.6rem 0.8rem;
	border-radius: 10px;
	border: 1.5px solid rgba(112, 66, 147, 0.2);
	background: rgba(255,255,255,0.6);
	color: var(--dsand-primary-dark);
	font-size: 0.82rem;
	font-weight: 600;
	cursor: pointer;
	text-decoration: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.35rem;
}

.dsand-bmi-share-btn:hover {
	background: rgba(112, 66, 147, 0.1);
}

/* Responsive */
@media (max-width: 480px) {
	.dsand-bmi-card { padding: 1.5rem 1.15rem; }
	.dsand-bmi-stats-grid { grid-template-columns: 1fr 1fr; }
	.dsand-bmi-modal { padding: 1.5rem 1.1rem; }
	.dsand-bmi-score-wrap { flex-direction: column; text-align: center; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
	.dsand-bmi-card,
	.dsand-bmi-modal,
	.dsand-bmi-submit-btn,
	.dsand-bmi-progress-fill {
		animation: none !important;
		transition: none !important;
	}
}