.mtg-calc-app {
	--mtg-blue: #2563eb;
	--mtg-indigo: #4f46e5;
	--mtg-green: #16a34a;
	--mtg-orange: #ea580c;
	--mtg-purple: #9333ea;
	--mtg-red: #dc2626;
	--mtg-dark: #1f2328;
	--mtg-gray: #6b7280;
	--mtg-border: #e5e7eb;
	--mtg-bg: #f7f7f8;
	--mtg-card-bg: #ffffff;
	--mtg-donut-principal: #1d5a8c;
	--mtg-donut-interest: #2f8fc2;
	--mtg-donut-tax: #7fc4e8;
	--mtg-donut-hoa: #bfe1f4;
	--mtg-balance-line: #1f2937;

	background: var(--mtg-bg);
	border-radius: 12px;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	color: var(--mtg-dark);
	box-sizing: border-box;
}
.mtg-calc-app *,
.mtg-calc-app *::before,
.mtg-calc-app *::after {
	box-sizing: border-box;
}

/* Header */
.mtg-header {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 16px;
	margin-bottom: 20px;
	flex-wrap: wrap;
}
.mtg-header-left { display: flex; gap: 14px; align-items: flex-start; }
.mtg-header-icon {
	background: var(--mtg-indigo);
	color: #fff;
	width: 44px;
	height: 44px;
	min-width: 44px;
	border-radius: 10px;
	display: flex;
	align-items: center;
	justify-content: center;
}
.mtg-title { font-size: 22px; font-weight: 700; margin: 0 0 4px; line-height: 1.25; }
.mtg-subtitle { font-size: 13.5px; color: var(--mtg-gray); margin: 0; }
.mtg-header-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-start; position: relative; }

/* Buttons */
.mtg-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	font-size: 14px;
	font-weight: 600;
	padding: 10px 18px;
	border-radius: 8px;
	border: 1px solid transparent;
	cursor: pointer;
	transition: background 0.15s ease, border-color 0.15s ease, opacity .15s ease;
	white-space: nowrap;
	color: var(--mtg-dark);
}
.mtg-btn-ghost { background: #fff; color: var(--mtg-dark) !important; border-color: var(--mtg-border); }
.mtg-btn-ghost:hover { background: #f3f4f6; }
.mtg-btn-primary { background: var(--mtg-blue); color: #fff !important; }
.mtg-btn-primary:hover { background: #1d4ed8; }
.mtg-btn-outline { background: #fff; border-color: var(--mtg-border); color: var(--mtg-dark) !important; }
.mtg-btn-outline:hover { background: #f3f4f6; }
.mtg-btn-block { width: 100%; }
.mtg-btn-report {
	background: #fff;
	color: var(--mtg-gray) !important;
	border: 1px solid var(--mtg-border);
	text-decoration: none;
}
.mtg-btn-report:hover { background: #f9f4f0; color: var(--mtg-orange) !important; border-color: var(--mtg-orange); }
/* The theme applies its own dark background to buttons on :active/:focus,
   independent of our styles, which collides with our default dark text and
   makes the label unreadable at the moment of clicking. Force light text
   for that state so it stays legible either way. */
.mtg-btn-ghost:active, .mtg-btn-ghost:focus,
.mtg-btn-outline:active, .mtg-btn-outline:focus {
	color: #fff !important;
}

/* Grid layout */
.mtg-grid {
	display: grid;
	grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
	gap: 20px;
	align-items: start;
}
@media (max-width: 960px) {
	.mtg-grid { grid-template-columns: minmax(0, 1fr); }
}
.mtg-col { display: flex; flex-direction: column; gap: 20px; min-width: 0; }

/* Card */
.mtg-card {
	background: var(--mtg-card-bg);
	border: 1px solid var(--mtg-border);
	border-radius: 12px;
	padding: 22px;
	min-width: 0;
}
.mtg-card-title {
	font-size: 16px;
	font-weight: 700;
	margin: 0 0 16px;
	display: flex;
	align-items: center;
	gap: 6px;
}
.mtg-title-blue { color: var(--mtg-blue); }
.mtg-card-header-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 10px;
	margin-bottom: 6px;
}
.mtg-card-header-row .mtg-card-title { margin-bottom: 0; }
.mtg-icon-btn {
	width: 32px;
	height: 32px;
	border-radius: 8px;
	border: 1px solid var(--mtg-border);
	background: #fff;
	cursor: pointer;
	color: var(--mtg-gray);
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
}
.mtg-icon-btn:hover { background: #f3f4f6; }
.mtg-help {
	width: 16px;
	height: 16px;
	font-size: 11px;
	border-radius: 50%;
	border: 1px solid var(--mtg-blue);
	color: var(--mtg-blue);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	cursor: help;
	font-weight: 700;
}
.mtg-info-icon { color: var(--mtg-blue); }

/* Fields */
.mtg-field { margin-bottom: 16px; }
.mtg-field label {
	display: block;
	font-size: 13.5px;
	font-weight: 600;
	margin-bottom: 6px;
	color: var(--mtg-dark);
}
.mtg-field input[type="number"],
.mtg-field input[type="date"],
.mtg-field select {
	width: 100%;
	padding: 10px 12px;
	border-radius: 8px;
	border: 1px solid var(--mtg-border);
	font-size: 14px;
	background: #fff;
	color: var(--mtg-dark);
}
.mtg-field input:focus, .mtg-field select:focus {
	outline: none;
	border-color: var(--mtg-blue);
	box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}
.mtg-field input[readonly] { background: #f6f6f7; color: var(--mtg-gray); }

.mtg-dual-input { display: grid; grid-template-columns: 1.6fr 1fr; gap: 8px; }
.mtg-dual-secondary { min-width: 0; }

.mtg-input-prefix, .mtg-input-suffix-wrap { position: relative; display: flex; align-items: center; min-width: 0; }
.mtg-input-prefix input[type="number"] { padding-left: 26px !important; }
.mtg-input-suffix-wrap input[type="number"] { padding-right: 30px !important; }
.mtg-input-prefix .mtg-prefix {
	position: absolute;
	left: 12px;
	top: 50%;
	transform: translateY(-50%);
	color: var(--mtg-gray);
	font-size: 13px;
	line-height: 1;
	pointer-events: none;
}
.mtg-input-suffix-wrap .mtg-suffix {
	position: absolute;
	right: 12px;
	top: 50%;
	transform: translateY(-50%);
	color: var(--mtg-gray);
	font-size: 13px;
	line-height: 1;
	pointer-events: none;
}
/* Native number-input spin arrows collide with our $/% affix labels. */
.mtg-input-prefix input[type="number"]::-webkit-outer-spin-button,
.mtg-input-prefix input[type="number"]::-webkit-inner-spin-button,
.mtg-input-suffix-wrap input[type="number"]::-webkit-outer-spin-button,
.mtg-input-suffix-wrap input[type="number"]::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}
.mtg-input-prefix input[type="number"],
.mtg-input-suffix-wrap input[type="number"] {
	-moz-appearance: textfield;
	appearance: textfield;
}

.mtg-field-readonly-row { display: flex; align-items: center; justify-content: space-between; }
.mtg-field-readonly-row label { margin-bottom: 0; }
.mtg-readonly-value { font-size: 15px; font-weight: 700; color: var(--mtg-blue); }

.mtg-hint { font-size: 12px; color: var(--mtg-gray); margin: 6px 0 0; }
.mtg-tip {
	font-size: 12.5px;
	color: #166534;
	background: #f0fdf4;
	border: 1px solid #bbf7d0;
	border-radius: 8px;
	padding: 12px;
	margin: 4px 0 0;
	line-height: 1.5;
}

.mtg-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
.mtg-error { color: var(--mtg-red); font-size: 13px; margin-top: 12px; }
.mtg-error[hidden] { display: none; }

/* Summary */
.mtg-summary-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
	gap: 12px;
	margin-bottom: 16px;
}
.mtg-summary-item { border: 1px solid var(--mtg-border); border-radius: 10px; padding: 14px; }
.mtg-summary-icon { font-size: 16px; display: block; margin-bottom: 8px; }
.mtg-summary-label { font-size: 12px; color: var(--mtg-gray); margin: 0 0 6px; font-weight: 600; }
.mtg-summary-value { font-size: 18px; font-weight: 700; margin: 0; }
.mtg-color-blue { color: var(--mtg-blue); }
.mtg-color-green { color: var(--mtg-green); }
.mtg-color-orange { color: var(--mtg-orange); }
.mtg-color-indigo { color: var(--mtg-indigo); }
.mtg-color-red { color: var(--mtg-red); }

.mtg-info-strip {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
	gap: 12px;
	background: #f9fafb;
	border-radius: 10px;
	padding: 14px;
}
.mtg-info-strip-secondary { background: var(--mtg-card-bg); border: 1px solid var(--mtg-border); }
.mtg-info-strip-item { text-align: center; }
.mtg-info-strip-label { font-size: 11.5px; color: var(--mtg-gray); margin: 0 0 4px; }
.mtg-info-strip-value { font-size: 14px; font-weight: 700; color: var(--mtg-dark); margin: 0; }

/* Charts */
.mtg-chart-stack { display: flex; flex-direction: column; gap: 20px; }
.mtg-chart-card { min-width: 0; }

.mtg-donut-wrap { position: relative; min-height: 240px; display: flex; align-items: center; justify-content: center; min-width: 0; }
.mtg-donut-empty { color: var(--mtg-gray); font-size: 14px; }
.mtg-donut-canvas-wrap[hidden] { display: none; }
.mtg-donut-canvas-wrap { position: relative; width: 100%; max-width: 260px; height: 240px; margin: 0 auto; }
.mtg-donut-canvas-wrap canvas { width: 100% !important; height: 100% !important; }
.mtg-donut-center {
	position: absolute;
	top: 50%; left: 50%;
	transform: translate(-50%, -50%);
	text-align: center;
	pointer-events: none;
}
.mtg-donut-center-label { display: block; font-size: 11px; color: var(--mtg-gray); }
.mtg-donut-center-value { display: block; font-size: 16px; font-weight: 700; color: var(--mtg-dark); }
.mtg-donut-legend { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.mtg-donut-legend-row { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.mtg-donut-legend-value { margin-left: auto; font-weight: 600; }
.mtg-donut-legend-pct { color: var(--mtg-gray); font-size: 12px; min-width: 40px; text-align: right; }
.mtg-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.mtg-dot-principal { background: var(--mtg-donut-principal); }
.mtg-dot-interest { background: var(--mtg-donut-interest); }
.mtg-dot-tax { background: var(--mtg-donut-tax); }
.mtg-dot-hoa { background: var(--mtg-donut-hoa); }

.mtg-line-wrap { position: relative; min-height: 240px; display: flex; align-items: center; justify-content: center; min-width: 0; }
.mtg-line-empty { color: var(--mtg-gray); font-size: 14px; }
.mtg-line-canvas-wrap {
	width: 100%;
	height: 260px;
	overflow-x: auto;
	overflow-y: hidden;
	-webkit-overflow-scrolling: touch;
}
.mtg-line-canvas-wrap[hidden] { display: none; }
.mtg-line-canvas-inner { height: 100%; min-width: 100%; }
.mtg-line-canvas-wrap canvas { width: 100% !important; height: 100% !important; }

/* Schedule table */
.mtg-schedule-controls { display: flex; gap: 10px; align-items: center; flex-wrap: nowrap; }
.mtg-view-select {
	padding: 9px 12px;
	border-radius: 8px;
	border: 1px solid var(--mtg-border);
	font-size: 13.5px;
	background: #fff;
	color: var(--mtg-dark);
}
.mtg-table-wrap { position: relative; min-height: 200px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.mtg-table { width: 100%; border-collapse: collapse; font-size: 13px; white-space: nowrap; }
.mtg-table thead th {
	text-align: left;
	padding: 10px 12px;
	background: #f6f6f7;
	color: #55585d;
	font-weight: 600;
	border-bottom: 1px solid var(--mtg-border);
}
.mtg-table tbody td { padding: 10px 12px; border-bottom: 1px solid var(--mtg-border); }
.mtg-table-wrap.has-data .mtg-schedule-empty { display: none; }
.mtg-table-wrap:not(.has-data) #mtg-schedule-table { display: none; }

.mtg-schedule-empty {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: 50px 20px;
	color: var(--mtg-gray);
}
.mtg-schedule-empty-icon { font-size: 26px; margin-bottom: 10px; opacity: .6; }
.mtg-schedule-empty-title { font-weight: 600; color: var(--mtg-dark); margin: 0 0 4px; }
.mtg-schedule-empty-sub { font-size: 13px; margin: 0; }

.mtg-pagination { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.mtg-pagination[hidden] { display: none; }
.mtg-pagination-info { font-size: 12.5px; color: var(--mtg-gray); margin: 0; }
.mtg-pagination-controls { display: flex; gap: 6px; flex-wrap: wrap; }
.mtg-page-btn {
	min-width: 32px;
	height: 32px;
	padding: 0 8px;
	border-radius: 6px;
	border: 1px solid var(--mtg-border);
	background: #fff;
	color: var(--mtg-dark) !important;
	font-size: 13px;
	cursor: pointer;
}
.mtg-page-btn:hover { background: #f3f4f6; }
.mtg-page-btn.mtg-page-active { background: var(--mtg-blue); border-color: var(--mtg-blue); color: #fff !important; }
.mtg-page-btn:disabled { opacity: .4; cursor: not-allowed; }
.mtg-page-btn:active, .mtg-page-btn:focus { color: #fff !important; }
.mtg-page-btn.mtg-page-active:active, .mtg-page-btn.mtg-page-active:focus { color: #fff !important; }

/* Footer info grid */
.mtg-footer-grid {
	display: grid;
	grid-template-columns: 1.3fr 1fr 1fr;
	gap: 20px;
	margin-top: 20px;
}
@media (max-width: 900px) {
	.mtg-footer-grid { grid-template-columns: minmax(0, 1fr); }
}
.mtg-how-text { font-size: 13.5px; color: var(--mtg-gray); line-height: 1.6; margin: 0; }
.mtg-formula-katex { overflow-x: auto; padding: 8px 0; }
.mtg-formula-legend { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.mtg-formula-legend li { font-size: 13px; color: var(--mtg-dark); }
.mtg-formula-legend strong { color: var(--mtg-indigo); font-style: italic; }

.mtg-report-wrap { display: flex; justify-content: center; margin-top: 16px; }

/* Responsive */
@media (max-width: 640px) {
	.mtg-header { flex-direction: column; }
	.mtg-header-actions { width: 100%; }
	.mtg-header-actions .mtg-btn { flex: 1; }
	.mtg-card-header-row { flex-direction: column; align-items: flex-start; }
	.mtg-summary-grid { grid-template-columns: repeat(2, 1fr); }
	.mtg-table { font-size: 12px; }
	.mtg-table thead th, .mtg-table tbody td { padding: 8px 6px; }
	.mtg-dual-input { grid-template-columns: 1fr; }
}