/**
 * OB Wheel Calculator - Calculator Styles
 *
 * Self-contained styles for the calculator shortcode.
 * Uses CSS custom properties from the theme for consistency.
 *
 * @package OB_Wheel_Calculator
 * @since 1.0.0
 */

/* ==========================================================================
   1. CALCULATOR CONTAINER
   ========================================================================== */

.obwc-calculator {
	max-width: 720px;
	margin: 0 auto;
	background-color: var(--color-card, #FFFFFF);
	border: 1px solid var(--color-border, #E2E8F0);
	border-radius: var(--radius-lg, 16px);
	box-shadow: var(--shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.08));
	overflow: hidden;
}

/* ==========================================================================
   2. TAB NAVIGATION
   ========================================================================== */

.obwc-tabs {
	display: flex;
	flex-wrap: wrap;
	border-bottom: 2px solid var(--color-border, #E2E8F0);
	scrollbar-width: none;
}

.obwc-tabs::-webkit-scrollbar {
	display: none;
}

.obwc-tab {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 14px 20px;
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--color-text-muted, #64748B);
	background: none;
	border: none;
	border-bottom: 2px solid transparent;
	margin-bottom: -2px;
	cursor: pointer;
	white-space: nowrap;
	flex: 1 1 auto;
	transition: color 150ms ease, border-color 150ms ease, background-color 150ms ease;
	min-height: 48px;
}

.obwc-tab:hover {
	color: var(--color-primary, #2563EB);
	background-color: var(--color-primary-lighter, #EFF6FF);
}

.obwc-tab.active,
.obwc-tab[aria-selected="true"] {
	color: var(--color-primary, #2563EB);
	border-bottom-color: var(--color-primary, #2563EB);
	background-color: var(--color-primary-lighter, #EFF6FF);
}

.obwc-tab:focus-visible {
	outline: 2px solid var(--color-primary, #2563EB);
	outline-offset: -2px;
	border-radius: 4px 4px 0 0;
}

.obwc-tab svg {
	flex-shrink: 0;
}

/* ==========================================================================
   3. TAB PANELS
   ========================================================================== */

.obwc-tab-panel {
	display: none;
	padding: 32px 28px;
}

.obwc-tab-panel.active,
.obwc-tab-panel:not([hidden]) {
	display: block;
}

/* ==========================================================================
   4. FORM ELEMENTS
   ========================================================================== */

.obwc-form-group {
	margin-bottom: 20px;
}

.obwc-form-group label {
	display: block;
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--color-text, #0F172A);
	margin-bottom: 6px;
}

.obwc-form-group input[type="date"],
.obwc-form-group input[type="number"],
.obwc-form-group select {
	display: block;
	width: 100%;
	height: 48px;
	padding: 10px 14px;
	font-family: inherit;
	font-size: 1rem;
	color: var(--color-text, #0F172A);
	background-color: var(--color-card, #FFFFFF);
	border: 1.5px solid var(--color-border, #E2E8F0);
	border-radius: var(--radius-sm, 8px);
	transition: border-color 150ms ease, box-shadow 150ms ease;
	appearance: none;
	-webkit-appearance: none;
}

.obwc-form-group input:focus,
.obwc-form-group select:focus {
	outline: none;
	border-color: var(--color-primary, #2563EB);
	box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.obwc-form-group input.error {
	border-color: var(--color-danger, #DC2626);
	box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.obwc-form-group input[aria-invalid="true"] {
	border-color: var(--color-danger, #DC2626);
}

.obwc-help-text {
	display: block;
	margin-top: 4px;
	font-size: 0.8125rem;
	color: var(--color-text-muted, #64748B);
	line-height: 1.4;
}

.obwc-error {
	font-size: 0.8125rem;
	color: var(--color-danger, #DC2626);
	margin-top: 4px;
	min-height: 0;
}

.obwc-error:empty {
	display: none;
}

/* Two-column form row */
.obwc-form-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
}

/* Select dropdown arrow */
.obwc-form-group select {
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='4 6 8 10 12 6'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 12px center;
	padding-right: 40px;
}

/* ==========================================================================
   5. CALCULATE BUTTON
   ========================================================================== */

.obwc-btn-calculate {
	display: block;
	width: 100%;
	height: 52px;
	margin-top: 8px;
	padding: 12px 24px;
	font-family: inherit;
	font-size: 1rem;
	font-weight: 600;
	color: #fff;
	background-color: var(--color-primary, #2563EB);
	border: none;
	border-radius: var(--radius-sm, 8px);
	cursor: pointer;
	transition: background-color 150ms ease, transform 100ms ease;
}

.obwc-btn-calculate:hover {
	background-color: var(--color-primary-dark, #1D4ED8);
}

.obwc-btn-calculate:active {
	transform: scale(0.98);
}

.obwc-btn-calculate:focus-visible {
	outline: 2px solid var(--color-primary, #2563EB);
	outline-offset: 2px;
}

/* ==========================================================================
   6. RESULTS PANEL
   ========================================================================== */

.obwc-results {
	padding: 32px 28px;
	border-top: 2px solid var(--color-border, #E2E8F0);
	background-color: var(--color-bg, #F8FAFC);
}

.obwc-results[hidden] {
	display: none;
}

.obwc-results-title {
	font-size: 1.25rem;
	font-weight: 700;
	color: var(--color-text, #0F172A);
	margin-bottom: 24px;
	text-align: center;
}

/* ==========================================================================
   7. RESULT CARDS
   ========================================================================== */

.obwc-results-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 12px;
	margin-bottom: 28px;
}

.obwc-result-card {
	background-color: var(--color-card, #FFFFFF);
	border: 1px solid var(--color-border, #E2E8F0);
	border-radius: var(--radius-md, 12px);
	padding: 16px;
	text-align: center;
	opacity: 0;
	transform: translateY(8px);
	animation: obwcFadeIn 0.3s ease forwards;
}

.obwc-result-card:nth-child(1) { animation-delay: 0s; }
.obwc-result-card:nth-child(2) { animation-delay: 0.05s; }
.obwc-result-card:nth-child(3) { animation-delay: 0.1s; }
.obwc-result-card:nth-child(4) { animation-delay: 0.15s; }
.obwc-result-card:nth-child(5) { animation-delay: 0.2s; }
.obwc-result-card:nth-child(6) { animation-delay: 0.25s; }

@keyframes obwcFadeIn {
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.highlight-result {
	background-color: var(--obwc-primary-light, #DBEAFE);
	border: 2px solid var(--obwc-primary, #2563EB);
}

.highlight-result .obwc-result-icon {
	color: var(--obwc-primary, #2563EB);
	background-color: #fff;
}

.obwc-result-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	margin: 0 auto 8px;
	background-color: var(--color-primary-light, #DBEAFE);
	border-radius: 50%;
	color: var(--color-primary, #2563EB);
}

.obwc-result-label {
	display: block;
	font-size: 0.75rem;
	font-weight: 500;
	color: var(--color-text-muted, #64748B);
	text-transform: uppercase;
	letter-spacing: 0.03em;
	margin-bottom: 4px;
}

.obwc-result-value {
	display: block;
	font-size: 1.125rem;
	font-weight: 700;
	color: var(--color-text, #0F172A);
	line-height: 1.2;
}

/* ==========================================================================
   8. PROGRESS BAR
   ========================================================================== */

.obwc-progress-section {
	margin-bottom: 28px;
}

.obwc-progress-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 8px;
}

.obwc-progress-title {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--color-text, #0F172A);
}

.obwc-progress-percent {
	font-size: 0.875rem;
	font-weight: 700;
	color: var(--color-primary, #2563EB);
}

.obwc-progress {
	width: 100%;
	height: 14px;
	background-color: var(--color-border, #E2E8F0);
	border-radius: 9999px;
	overflow: hidden;
}

.obwc-progress-fill {
	height: 100%;
	width: 0%;
	background: linear-gradient(90deg, var(--color-primary, #2563EB), var(--color-accent, #10B981));
	border-radius: 9999px;
	transition: width 0.8s ease;
}

.obwc-progress-labels {
	display: flex;
	justify-content: space-between;
	margin-top: 6px;
	font-size: 0.6875rem;
	color: var(--color-text-muted, #64748B);
}

/* ==========================================================================
   9. TIMELINE
   ========================================================================== */

.obwc-timeline {
	margin-bottom: 28px;
	padding: 20px;
	background-color: var(--color-card, #FFFFFF);
	border: 1px solid var(--color-border, #E2E8F0);
	border-radius: var(--radius-md, 12px);
}

.obwc-timeline-title {
	font-size: 0.9375rem;
	font-weight: 600;
	margin-bottom: 16px;
	color: var(--color-text, #0F172A);
}

.obwc-timeline-items {
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.obwc-timeline-item {
	display: flex;
	align-items: flex-start;
	gap: 12px;
}

.obwc-timeline-marker {
	flex-shrink: 0;
	width: 12px;
	height: 12px;
	margin-top: 4px;
	border-radius: 50%;
	background-color: var(--color-border, #E2E8F0);
	border: 2px solid var(--color-card, #FFFFFF);
	box-shadow: 0 0 0 2px var(--color-border, #E2E8F0);
}

.obwc-timeline-marker.trimester-1 {
	background-color: var(--color-primary, #2563EB);
	box-shadow: 0 0 0 2px var(--color-primary-light, #DBEAFE);
}

.obwc-timeline-marker.trimester-2 {
	background-color: var(--color-accent, #10B981);
	box-shadow: 0 0 0 2px #DCFCE7;
}

.obwc-timeline-marker.trimester-3 {
	background-color: #8B5CF6;
	box-shadow: 0 0 0 2px #EDE9FE;
}

.obwc-timeline-marker.active {
	box-shadow: 0 0 0 2px currentColor, 0 0 0 5px rgba(37, 99, 235, 0.15);
}

.obwc-timeline-label {
	font-size: 0.8125rem;
	font-weight: 600;
	color: var(--color-text, #0F172A);
}

.obwc-timeline-dates {
	font-size: 0.75rem;
	color: var(--color-text-muted, #64748B);
}

/* ==========================================================================
   10. WEEK INFO
   ========================================================================== */

.obwc-week-info {
	margin-bottom: 28px;
	padding: 20px;
	background: linear-gradient(135deg, var(--color-primary-lighter, #EFF6FF), var(--color-primary-light, #DBEAFE));
	border-radius: var(--radius-md, 12px);
	border: 1px solid var(--color-primary-light, #DBEAFE);
}

.obwc-week-info[hidden] {
	display: none;
}

.obwc-week-info-title {
	font-size: 1rem;
	font-weight: 700;
	color: var(--color-primary-dark, #1D4ED8);
	margin-bottom: 12px;
}

.obwc-week-info-size {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 4px 12px;
	background-color: var(--color-card, #FFFFFF);
	border-radius: 9999px;
	font-size: 0.8125rem;
	font-weight: 600;
	color: var(--color-primary, #2563EB);
	margin-bottom: 12px;
}

.obwc-week-info-development {
	font-size: 0.875rem;
	color: var(--color-text, #0F172A);
	line-height: 1.6;
	margin-bottom: 8px;
}

.obwc-week-info-tip {
	font-size: 0.8125rem;
	color: var(--color-text-muted, #64748B);
	font-style: italic;
	margin-bottom: 0;
}

/* ==========================================================================
   11. ACTION BUTTONS
   ========================================================================== */

.obwc-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	justify-content: center;
}

.obwc-action-btn {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 8px 16px;
	min-height: 40px;
	font-family: inherit;
	font-size: 0.8125rem;
	font-weight: 600;
	color: var(--color-text-muted, #64748B);
	background-color: var(--color-card, #FFFFFF);
	border: 1px solid var(--color-border, #E2E8F0);
	border-radius: var(--radius-sm, 8px);
	cursor: pointer;
	transition: all 150ms ease;
}

.obwc-action-btn:hover {
	background-color: var(--color-bg-alt, #F1F5F9);
	color: var(--color-text, #0F172A);
	border-color: var(--color-text-muted, #64748B);
}

.obwc-action-btn:focus-visible {
	outline: 2px solid var(--color-primary, #2563EB);
	outline-offset: 2px;
}

.obwc-action-btn.obwc-action-reset {
	color: var(--color-danger, #DC2626);
	border-color: transparent;
	background-color: transparent;
}

.obwc-action-btn.obwc-action-reset:hover {
	background-color: #FEF2F2;
	border-color: #FECACA;
}

.obwc-action-btn svg {
	flex-shrink: 0;
}

/* Copied state */
.obwc-action-btn.copied {
	color: var(--color-success, #16A34A);
	border-color: #BBF7D0;
	background-color: #F0FDF4;
}

/* ==========================================================================
   12. STICKY RESULTS (Desktop)
   ========================================================================== */

@media (min-width: 1024px) {
	.calculator-section .container {
		display: flex;
		gap: 32px;
		align-items: flex-start;
	}

	.obwc-calculator {
		flex: 1;
		min-width: 0;
	}
}

/* ==========================================================================
   13. RESPONSIVE
   ========================================================================== */

@media (max-width: 600px) {
	.obwc-tab {
		padding: 10px 14px;
		font-size: 0.8125rem;
	}

	.obwc-tab svg {
		display: none;
	}

	.obwc-tab-panel {
		padding: 24px 20px;
	}

	.obwc-results {
		padding: 24px 20px;
	}

	.obwc-results-grid {
		grid-template-columns: 1fr;
	}

	.obwc-form-row {
		grid-template-columns: 1fr;
	}

	.obwc-actions {
		flex-direction: column;
	}

	.obwc-action-btn {
		justify-content: center;
	}
}

/* ==========================================================================
   14. PRINT STYLES
   ========================================================================== */

@media print {
	.obwc-calculator {
		box-shadow: none;
		border: 1px solid #ccc;
	}

	.obwc-tabs,
	.obwc-tab-panel,
	.obwc-actions {
		display: none !important;
	}

	.obwc-results {
		display: block !important;
		background: #fff !important;
		padding: 20px;
	}

	.obwc-results[hidden] {
		display: block !important;
	}

	.obwc-result-card {
		opacity: 1;
		transform: none;
		animation: none;
		border: 1px solid #ddd;
	}

	.obwc-progress-fill {
		-webkit-print-color-adjust: exact;
		print-color-adjust: exact;
	}

	.obwc-week-info {
		background: #f0f7ff !important;
		-webkit-print-color-adjust: exact;
		print-color-adjust: exact;
	}
}

/* ==========================================================================
   15. REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
	.obwc-result-card {
		opacity: 1;
		transform: none;
		animation: none;
	}

	.obwc-progress-fill {
		transition: none;
	}

	.obwc-tab,
	.obwc-btn-calculate,
	.obwc-action-btn,
	.obwc-form-group input,
	.obwc-form-group select {
		transition: none;
	}
}