/**
 * WealthNest SIP Calculator Styles
 * Version: 1.0.0
 * Light Theme Only (admin-controlled, no user toggle).
 *
 * Brand kit: brown/gold/cream palette. Inter display font.
 * Typography: 1.25 major-third scale (matches retirement, FIRE, fragmentation).
 * Spacing: 8px base scale.
 */

/* ========================================================================
   1. ROOT CONTAINER + DESIGN TOKENS
   ======================================================================== */

.wn-sip-calculator {
	--wn-bg:             #f7f5f0;
	--wn-surface:        #ffffff;
	--wn-surface-alt:    #fdfaf4;
	--wn-border-color:   rgba(74, 48, 7, 0.12);
	--wn-border-strong:  rgba(74, 48, 7, 0.22);
	--wn-input-bg:       #ffffff;
	--wn-input-border:   #d4cec3;
	--wn-input-focus:    #cd9f56;

	--wn-text-primary:   #1e0b03;
	--wn-text-secondary: #4a3007;
	--wn-text-tertiary:  #6b5a3d;
	--wn-text-soft:      #8a6a3f;

	--wn-gold-primary:   #cd9f56;
	--wn-gold-hover:     #efc476;
	--wn-gold-dark:      #bf8230;
	--wn-cream:          #ffe88b;

	--wn-good:           #2e7d32;
	--wn-warn:           #e67300;
	--wn-bad:            #c62828;

	--wn-shadow-sm:      0 1px 3px rgba(30, 11, 3, 0.08);
	--wn-shadow-md:      0 4px 6px rgba(30, 11, 3, 0.10);
	--wn-shadow-lg:      0 10px 15px rgba(30, 11, 3, 0.12);

	--wn-font-family:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	--wn-font-xs:        0.64rem;
	--wn-font-sm:        0.8rem;
	--wn-font-base:      1rem;
	--wn-font-md:        1.25rem;
	--wn-font-lg:        1.563rem;
	--wn-font-xl:        1.953rem;
	--wn-font-xxl:       2.441rem;
	--wn-font-huge:      3.052rem;

	--wn-space-xs:       0.25rem;
	--wn-space-sm:       0.5rem;
	--wn-space-md:       1rem;
	--wn-space-lg:       1.5rem;
	--wn-space-xl:       2rem;
	--wn-space-xxl:      3rem;

	--wn-radius-sm:      4px;
	--wn-radius-md:      8px;
	--wn-radius-lg:      12px;
	--wn-radius-xl:      16px;
	--wn-radius:         var(--wn-radius-lg);

	--wn-transition:     all 0.3s ease;

	font-family: var(--wn-font-family);
	font-size:   var(--wn-font-base);
	color:       var(--wn-text-primary);
	background:  var(--wn-bg);
	padding:     clamp(16px, 3vw, 32px);
	border-radius: var(--wn-radius);
	max-width:   1280px;
	margin:      0 auto;
	line-height: 1.5;
	box-sizing:  border-box;
}

.wn-sip-calculator *,
.wn-sip-calculator *::before,
.wn-sip-calculator *::after {
	box-sizing: border-box;
}

/* ========================================================================
   2. LAYOUT
   ======================================================================== */

.wn-sip-grid {
	display: flex;
	flex-direction: column;
	gap: var(--wn-space-xl);
}

.wn-sip-inputs {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	grid-template-areas:
		"investment assumptions"
		"actions    actions";
	gap: var(--wn-space-md);
	align-items: start;
}

.wn-section-investment  { grid-area: investment; }
.wn-section-assumptions { grid-area: assumptions; }
.wn-sip-inputs > .wn-actions { grid-area: actions; }

@media (max-width: 700px) {
	.wn-sip-inputs {
		grid-template-columns: 1fr;
		grid-template-areas:
			"investment"
			"assumptions"
			"actions";
	}
}

.wn-sip-results {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--wn-space-md);
}

/* ========================================================================
   3. INPUT SECTIONS
   ======================================================================== */

.wn-input-section {
	background: var(--wn-surface);
	border: 1px solid var(--wn-border-color);
	border-radius: var(--wn-radius);
	padding: clamp(16px, 2vw, 22px);
	box-shadow: var(--wn-shadow-sm);
}

.wn-section-title {
	font-family: var(--wn-font-family);
	font-weight: 700;
	font-size: var(--wn-font-md);
	color: var(--wn-text-secondary);
	margin: 0 0 var(--wn-space-md);
	padding-bottom: var(--wn-space-sm);
	border-bottom: 2px solid var(--wn-gold-primary);
}

.wn-section-intro {
	font-size: var(--wn-font-sm);
	color: var(--wn-text-tertiary);
	margin: var(--wn-space-xs) 0 var(--wn-space-md);
	font-style: italic;
}

.wn-input-group {
	margin-bottom: var(--wn-space-md);
}
.wn-input-group:last-child {
	margin-bottom: 0;
}

.wn-label {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	gap: var(--wn-space-sm);
	font-weight: 500;
	font-size: var(--wn-font-sm);
	color: var(--wn-text-secondary);
	margin-bottom: var(--wn-space-xs);
}

.wn-input-wrapper {
	position: relative;
	display: flex;
	align-items: center;
	background: var(--wn-input-bg);
	border: 2px solid var(--wn-input-border);
	border-radius: var(--wn-radius-md);
	transition: var(--wn-transition);
	overflow: hidden;
}

.wn-sip-calculator .wn-input-wrapper:focus-within {
	border-color: var(--wn-input-focus);
	box-shadow: 0 0 0 3px rgba(205, 159, 86, 0.15);
}

.wn-sip-calculator .wn-input {
	flex: 1 !important;
	width: 100% !important;
	min-width: 0 !important;
	padding: var(--wn-space-sm) var(--wn-space-md) !important;
	border: none !important;
	background: transparent !important;
	background-color: transparent !important;
	background-image: none !important;
	color: var(--wn-text-primary) !important;
	font-family: var(--wn-font-family) !important;
	font-size: var(--wn-font-base) !important;
	font-weight: 500 !important;
	outline: none !important;
	box-shadow: none !important;
	transition: none !important;
}

.wn-sip-calculator .wn-input:focus {
	outline: none !important;
	border: none !important;
	box-shadow: none !important;
	background: transparent !important;
}

.wn-sip-calculator input[type="number"],
.wn-sip-calculator input[type="text"],
.wn-sip-calculator input.wn-input {
	border: none !important;
	background: transparent !important;
	background-color: transparent !important;
	box-shadow: none !important;
}

.wn-sip-calculator input[type="number"].wn-input {
	-moz-appearance: number-input;
	appearance: auto;
}
.wn-sip-calculator input[type="number"].wn-input::-webkit-outer-spin-button,
.wn-sip-calculator input[type="number"].wn-input::-webkit-inner-spin-button {
	-webkit-appearance: auto;
	appearance: auto;
	opacity: 1;
	margin: 0;
}

.wn-help-text {
	font-size: var(--wn-font-sm);
	color: var(--wn-text-tertiary);
	margin: var(--wn-space-xs) 0 0;
	line-height: 1.4;
}

/* ========================================================================
   4. BUTTONS
   ======================================================================== */

.wn-actions {
	display: flex;
	gap: var(--wn-space-md);
	margin-top: calc(var(--wn-space-md) * -1 + var(--wn-space-xs));
}

.wn-sip-calculator .wn-btn {
	flex: 1 !important;
	padding: var(--wn-space-md) var(--wn-space-lg) !important;
	font-family: var(--wn-font-family) !important;
	font-size: var(--wn-font-base) !important;
	font-weight: 600 !important;
	border: none !important;
	border-radius: var(--wn-radius-md) !important;
	cursor: pointer !important;
	transition: var(--wn-transition) !important;
	text-align: center !important;
	text-decoration: none !important;
	display: inline-block !important;
	letter-spacing: 0.01em !important;
	line-height: 1.4 !important;
	box-shadow: none !important;
	text-transform: none !important;
}

.wn-sip-calculator .wn-btn-primary,
.wn-sip-calculator button.wn-btn-primary {
	background: var(--wn-gold-primary) !important;
	background-color: var(--wn-gold-primary) !important;
	background-image: none !important;
	color: #ffffff !important;
	border: 2px solid var(--wn-gold-primary) !important;
	box-shadow: var(--wn-shadow-sm) !important;
}

.wn-sip-calculator .wn-btn-primary:hover,
.wn-sip-calculator button.wn-btn-primary:hover {
	background: #ffffff !important;
	background-color: #ffffff !important;
	color: var(--wn-text-primary) !important;
	border: 2px solid var(--wn-gold-primary) !important;
	box-shadow: var(--wn-shadow-md) !important;
	transform: translateY(-1px) !important;
}

.wn-sip-calculator .wn-btn-secondary,
.wn-sip-calculator button.wn-btn-secondary {
	background: transparent !important;
	background-color: transparent !important;
	color: var(--wn-text-secondary) !important;
	border: 2px solid var(--wn-border-color) !important;
	box-shadow: none !important;
}

.wn-sip-calculator .wn-btn-secondary:hover {
	border-color: var(--wn-gold-primary) !important;
	color: var(--wn-gold-primary) !important;
}

/* ========================================================================
   5. HERO CARD
   ======================================================================== */

.wn-hero-card {
	background: var(--wn-gold-primary);
	color: var(--wn-text-primary);
	border: none;
	border-radius: var(--wn-radius);
	padding: clamp(24px, 4vw, 40px) clamp(20px, 3vw, 32px);
	position: relative;
	overflow: hidden;
	box-shadow: var(--wn-shadow-md);
	text-align: center;
}

.wn-hero-card::before {
	content: '';
	position: absolute;
	top: -50px;
	right: -50px;
	width: 180px;
	height: 180px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.15);
	pointer-events: none;
}

.wn-hero-label {
	font-family: var(--wn-font-family);
	font-size: var(--wn-font-sm);
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--wn-text-primary);
	opacity: 1;
	margin-bottom: var(--wn-space-sm);
	position: relative;
	z-index: 1;
}

.wn-hero-value {
	font-family: var(--wn-font-family);
	font-weight: 800;
	font-size: clamp(var(--wn-font-xl), 5.5vw, var(--wn-font-huge));
	line-height: 1.05;
	color: #ffffff;
	margin-bottom: var(--wn-space-sm);
	letter-spacing: -0.02em;
	word-break: break-word;
	position: relative;
	z-index: 1;
	text-shadow: 0 2px 8px rgba(30, 11, 3, 0.2);
}

.wn-hero-sub {
	font-family: var(--wn-font-family);
	font-size: var(--wn-font-base);
	font-weight: 700;
	color: var(--wn-text-primary) !important;
	opacity: 1;
	position: relative;
	z-index: 1;
	letter-spacing: 0.04em;
}

/* ========================================================================
   6. RESULTS HEADINGS
   ======================================================================== */

.wn-results-heading {
	font-family: var(--wn-font-family);
	font-weight: 700;
	font-size: var(--wn-font-md);
	color: var(--wn-text-primary);
	margin: var(--wn-space-md) 0 var(--wn-space-sm);
	padding-bottom: var(--wn-space-sm);
	border-bottom: 1px solid var(--wn-border-color);
}

/* ========================================================================
   7. SUMMARY METRIC GRID
   ======================================================================== */

.wn-summary-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: var(--wn-space-md);
}

.wn-metric-card {
	background: var(--wn-surface);
	border: 1px solid var(--wn-border-color);
	border-radius: var(--wn-radius);
	padding: clamp(14px, 1.5vw, 20px);
	box-shadow: var(--wn-shadow-sm);
	transition: box-shadow 0.2s ease;
}

.wn-metric-card:hover {
	box-shadow: var(--wn-shadow-md);
}

.wn-metric-label {
	font-family: var(--wn-font-family);
	font-size: var(--wn-font-xs);
	font-weight: 600;
	color: var(--wn-text-tertiary);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	margin-bottom: var(--wn-space-sm);
}

.wn-metric-value {
	font-family: var(--wn-font-family);
	font-weight: 700;
	font-size: clamp(var(--wn-font-md), 2.2vw, var(--wn-font-lg));
	color: var(--wn-text-primary);
	margin-bottom: var(--wn-space-xs);
	line-height: 1.1;
	letter-spacing: -0.01em;
}

.wn-metric-value.wn-positive {
	color: var(--wn-good);
}

.wn-metric-sub {
	font-family: var(--wn-font-family);
	font-size: var(--wn-font-xs);
	color: var(--wn-text-tertiary);
}

.wn-positive {
	color: var(--wn-good);
	font-weight: 600;
}

.wn-negative {
	color: var(--wn-bad);
	font-weight: 600;
}

/* ========================================================================
   8. CHART CONTAINER
   ======================================================================== */

.wn-chart-container {
	background: var(--wn-surface);
	border: 1px solid var(--wn-border-color);
	border-radius: var(--wn-radius);
	padding: var(--wn-space-md);
	height: 360px;
	box-shadow: var(--wn-shadow-sm);
	position: relative;
}

@media (max-width: 600px) {
	.wn-chart-container { height: 280px; }
}

.wn-chart-caption {
	font-size: var(--wn-font-sm);
	color: var(--wn-text-tertiary);
	text-align: center;
	font-style: italic;
	margin: var(--wn-space-sm) 0 0;
}

/* ========================================================================
   9. INSIGHTS CARDS
   ======================================================================== */

.wn-insights-card {
	background: var(--wn-surface);
	border: 1px solid var(--wn-border-color);
	border-radius: var(--wn-radius);
	padding: var(--wn-space-lg);
	box-shadow: var(--wn-shadow-sm);
	display: flex;
	flex-direction: column;
	gap: var(--wn-space-md);
}

.wn-insight-item {
	padding: var(--wn-space-md);
	background: var(--wn-surface-alt);
	border-left: 3px solid var(--wn-gold-primary);
	border-radius: 0 var(--wn-radius-sm) var(--wn-radius-sm) 0;
}

.wn-insight-title {
	font-family: var(--wn-font-family);
	font-size: var(--wn-font-sm);
	font-weight: 700;
	color: var(--wn-gold-dark);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	margin-bottom: var(--wn-space-xs);
}

.wn-insight-text {
	font-size: var(--wn-font-base);
	color: var(--wn-text-secondary);
	line-height: 1.6;
}

/* ========================================================================
   10. YEAR-BY-YEAR TABLE
   ======================================================================== */

.wn-year-table-wrap {
	background: var(--wn-surface);
	border: 1px solid var(--wn-border-color);
	border-radius: var(--wn-radius);
	overflow-x: auto;
	box-shadow: var(--wn-shadow-sm);
}

.wn-year-table {
	min-width: 760px; /* table is wide; horizontal scroll on small screens */
}

.wn-year-table-head,
.wn-year-row {
	display: grid;
	grid-template-columns: 0.45fr 1.1fr 1.2fr 1fr 1fr 1fr 0.7fr 1.1fr;
	gap: var(--wn-space-md);
	padding: var(--wn-space-sm) var(--wn-space-md);
	align-items: center;
}

.wn-year-table-head {
	background: var(--wn-surface-alt);
	font-size: var(--wn-font-xs);
	font-weight: 700;
	color: var(--wn-text-tertiary);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	border-bottom: 1px solid var(--wn-border-color);
	position: sticky;
	top: 0;
	z-index: 1;
}

.wn-year-row {
	font-size: var(--wn-font-sm);
	color: var(--wn-text-secondary);
	border-bottom: 1px solid var(--wn-border-color);
}

.wn-year-row:last-child {
	border-bottom: none;
}

.wn-year-row:nth-child(even) {
	background: rgba(253, 250, 244, 0.5);
}

.wn-year-row:hover {
	background: var(--wn-surface-alt);
}

/* Status badges in year table */
.wn-status-early       { color: var(--wn-text-tertiary); font-weight: 600; }
.wn-status-building    { color: var(--wn-warn);          font-weight: 600; }
.wn-status-growing     { color: var(--wn-gold-dark);     font-weight: 600; }
.wn-status-compounding { color: var(--wn-good);          font-weight: 700; }

/* ========================================================================
   11. COMPARISON TABLE
   ======================================================================== */

.wn-comparison-table-wrap {
	background: var(--wn-surface);
	border: 1px solid var(--wn-border-color);
	border-radius: var(--wn-radius);
	overflow-x: auto;
	box-shadow: var(--wn-shadow-sm);
}

.wn-comparison-table {
	min-width: 800px;
}

.wn-comparison-head,
.wn-comparison-row {
	display: grid;
	grid-template-columns: 1.4fr 0.7fr 1.2fr 0.8fr 1.2fr 1.6fr 1.2fr;
	gap: var(--wn-space-md);
	padding: var(--wn-space-sm) var(--wn-space-md);
	align-items: center;
}

.wn-comparison-head {
	background: var(--wn-surface-alt);
	font-size: var(--wn-font-xs);
	font-weight: 700;
	color: var(--wn-text-tertiary);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	border-bottom: 1px solid var(--wn-border-color);
}

.wn-comparison-row {
	font-size: var(--wn-font-sm);
	color: var(--wn-text-secondary);
	border-bottom: 1px solid var(--wn-border-color);
}

.wn-comparison-row:last-child {
	border-bottom: none;
}

.wn-comparison-row:hover {
	background: var(--wn-surface-alt);
}

.wn-comparison-baseline {
	background: rgba(205, 159, 86, 0.10);
	font-weight: 600;
}

.wn-comparison-baseline:hover {
	background: rgba(205, 159, 86, 0.18);
}

.wn-comparison-name {
	color: var(--wn-text-primary);
	font-weight: 600;
}

.wn-tax-cell {
	font-size: var(--wn-font-xs);
	color: var(--wn-text-tertiary);
}

.wn-vs-baseline {
	color: var(--wn-text-tertiary);
	font-style: italic;
}

/* ========================================================================
   12. HOW IT WORKS
   ======================================================================== */

.wn-sip-calculator .wn-how-it-works {
	background: var(--wn-surface-alt) !important;
	border-radius: var(--wn-radius) !important;
	overflow: hidden !important;
	margin-top: var(--wn-space-xl) !important;
	border: 1px solid var(--wn-border-color) !important;
	box-shadow: var(--wn-shadow-sm) !important;
}

.wn-sip-calculator .wn-how-toggle,
.wn-sip-calculator button.wn-how-toggle {
	width: 100% !important;
	padding: var(--wn-space-lg) !important;
	background: transparent !important;
	background-color: transparent !important;
	border: none !important;
	border-radius: 0 !important;
	font-family: var(--wn-font-family) !important;
	font-size: var(--wn-font-md) !important;
	font-weight: 600 !important;
	color: var(--wn-text-secondary) !important;
	cursor: pointer !important;
	display: flex !important;
	justify-content: space-between !important;
	align-items: center !important;
	transition: var(--wn-transition) !important;
	text-align: left !important;
	text-transform: none !important;
	letter-spacing: normal !important;
	line-height: 1.4 !important;
	box-shadow: none !important;
}

.wn-sip-calculator .wn-how-toggle:hover {
	color: var(--wn-gold-primary) !important;
	background: transparent !important;
}

.wn-sip-calculator .wn-toggle-icon {
	font-size: var(--wn-font-sm) !important;
	color: var(--wn-gold-primary) !important;
	transition: var(--wn-transition) !important;
}

.wn-sip-calculator .wn-how-toggle.is-open .wn-toggle-icon {
	transform: rotate(180deg) !important;
}

.wn-sip-calculator .wn-how-content {
	padding: 0 var(--wn-space-lg) var(--wn-space-lg) !important;
	color: var(--wn-text-secondary) !important;
	font-size: var(--wn-font-base) !important;
	line-height: 1.65 !important;
}

.wn-sip-calculator .wn-how-intro {
	margin: 0 0 var(--wn-space-md) !important;
	font-size: var(--wn-font-sm) !important;
}

.wn-sip-calculator .wn-how-section {
	margin-bottom: var(--wn-space-lg) !important;
}

.wn-sip-calculator .wn-how-section:last-child {
	margin-bottom: 0 !important;
}

.wn-sip-calculator .wn-how-section h4 {
	font-family: var(--wn-font-family) !important;
	font-size: var(--wn-font-base) !important;
	font-weight: 600 !important;
	color: var(--wn-text-primary) !important;
	margin: 0 0 var(--wn-space-sm) !important;
}

.wn-sip-calculator .wn-how-section p {
	font-size: var(--wn-font-sm) !important;
	color: var(--wn-text-secondary) !important;
	margin: 0 0 var(--wn-space-sm) !important;
	line-height: 1.65 !important;
}

.wn-sip-calculator .wn-how-section p:last-child {
	margin-bottom: 0 !important;
}

.wn-sip-calculator .wn-how-section ul {
	margin: var(--wn-space-sm) 0 0 var(--wn-space-lg) !important;
	padding: 0 !important;
}

.wn-sip-calculator .wn-how-section li {
	font-size: var(--wn-font-sm) !important;
	color: var(--wn-text-secondary) !important;
	margin-bottom: var(--wn-space-xs) !important;
	line-height: 1.6 !important;
}

.wn-sip-calculator .wn-how-section strong {
	color: var(--wn-text-primary) !important;
	font-weight: 600 !important;
}

.wn-sip-calculator .wn-how-section em {
	color: var(--wn-gold-dark) !important;
	font-style: italic !important;
}