/* loan-invest-sim — 版面
 * 設計方向：把「借錢投資」做成一份檢驗報告。受眾是醫師，讀報告是他們的母語：
 * 數值、參考區間、紅字旗標、分區面板。所以現金流壓力用檢驗列＋參考區間呈現，
 * 資產路徑用監測趨勢圖，其餘一律等寬數字、細線分隔、不裝飾。
 */

:root {
	color-scheme: light;

	/* 紙面與墨色 */
	--page: #f1f2ee;
	--surface: #fbfbfa;
	--surface-sunk: #f4f5f1;
	--ink: #0b0b0b;
	--ink-2: #52514e;
	--ink-muted: #898781;
	--rule: #e1e0d9;
	--rule-strong: #c3c2b7;
	--letterhead: #14332b;
	--letterhead-ink: #f1f2ee;

	/* 資料色（dataviz 參考調色板，已對本頁底色跑過 validator） */
	--series-1: #2a78d6; /* 信貸資產 */
	--series-2: #eb6834; /* 定期定額 */
	--seq-100: #cde2fb;
	--seq-200: #9ec5f4;
	--seq-350: #5598e7;
	--seq-450: #2a78d6;
	--seq-550: #1c5cab;
	/* 中位數線畫在色帶之上，需要比帶子亮一階才看得出來（深色模式差異更大） */
	--median: #1c5cab;

	/* 狀態色（固定不隨主題；一律搭配文字標籤，不靠顏色單獨表意） */
	--good: #0ca30c;
	--warning: #fab219;
	--critical: #d03b3b;
	--good-text: #006300;

	--font-sans: system-ui, -apple-system, "Segoe UI", "PingFang TC", "Noto Sans TC",
		"Microsoft JhengHei", sans-serif;
	--font-mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, "Noto Sans Mono", monospace;

	--maxw: 1180px;
	--radius: 4px;
}

@media (prefers-color-scheme: dark) {
	:root {
		color-scheme: dark;
		--page: #0d0e0d;
		--surface: #191b1a;
		--surface-sunk: #131514;
		--ink: #ffffff;
		--ink-2: #c3c2b7;
		--ink-muted: #898781;
		--rule: #2c2c2a;
		--rule-strong: #383835;
		--letterhead: #0f2a24;
		--letterhead-ink: #e7e9e3;

		--series-1: #3987e5;
		--series-2: #d95926;
		--seq-100: #104281;
		--seq-200: #184f95;
		--seq-350: #256abf;
		--seq-450: #3987e5;
		--seq-550: #86b6ef;
		--median: #b7d3f6;
		--good-text: #0ca30c;
	}
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
	margin: 0;
	background: var(--page);
	color: var(--ink);
	font-family: var(--font-sans);
	font-size: 16px;
	line-height: 1.65;
	overflow-x: hidden;
}

a { color: inherit; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
	outline: 2px solid var(--series-1);
	outline-offset: 2px;
}

.wrap {
	max-width: var(--maxw);
	margin: 0 auto;
	padding: 0 20px;
}

/* ------------------------------------------------------------ 信頭 */

.letterhead {
	background: var(--letterhead);
	color: var(--letterhead-ink);
	padding: 42px 0 0;
}

.eyebrow {
	font-family: var(--font-mono);
	font-size: 12px;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: color-mix(in srgb, var(--letterhead-ink) 72%, transparent);
	margin: 0 0 14px;
}

.letterhead h1 {
	font-size: clamp(28px, 6.4vw, 52px);
	line-height: 1.12;
	letter-spacing: -0.02em;
	font-weight: 700;
	margin: 0 0 18px;
	max-width: 18em;
}

.letterhead h1 em {
	font-style: normal;
	color: #7fd0b6;
}

.lede {
	max-width: 46em;
	font-size: 16px;
	color: color-mix(in srgb, var(--letterhead-ink) 88%, transparent);
	margin: 0 0 8px;
}

.lede + .lede { margin-top: 12px; }

/* 報告表頭：像檢體資料列 */
.specimen {
	display: flex;
	flex-wrap: wrap;
	gap: 0 28px;
	margin: 28px 0 0;
	padding: 14px 0;
	border-top: 1px solid color-mix(in srgb, var(--letterhead-ink) 22%, transparent);
	font-family: var(--font-mono);
	font-size: 12px;
	letter-spacing: 0.04em;
	color: color-mix(in srgb, var(--letterhead-ink) 78%, transparent);
}

.specimen b {
	font-weight: 600;
	color: var(--letterhead-ink);
}

/* ------------------------------------------------------------ 主體格線 */

.layout {
	display: grid;
	grid-template-columns: 1fr;
	gap: 28px;
	padding: 28px 0 64px;
	align-items: start;
}

@media (min-width: 940px) {
	.layout {
		grid-template-columns: 328px minmax(0, 1fr);
		gap: 36px;
	}
	.panel-col { position: sticky; top: 20px; }
}

/* ------------------------------------------------------------ 輸入面板 */

.panel {
	background: var(--surface);
	border: 1px solid var(--rule);
	border-radius: var(--radius);
	padding: 20px;
}

.panel h2,
.card h2 { margin: 0; }

.panel-title {
	font-family: var(--font-mono);
	font-size: 12px;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--ink-muted);
	margin: 0 0 16px;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--rule);
}

.field { margin-bottom: 16px; }

.field > label,
.field > .field-label {
	display: block;
	font-size: 13px;
	font-weight: 600;
	color: var(--ink-2);
	margin-bottom: 6px;
}

.field input[type="number"],
.field select {
	width: 100%;
	font-family: var(--font-mono);
	font-size: 15px;
	color: var(--ink);
	background: var(--surface-sunk);
	border: 1px solid var(--rule-strong);
	border-radius: var(--radius);
	padding: 9px 10px;
}

.field input[type="number"]:focus,
.field select:focus { border-color: var(--series-1); }

.input-suffix {
	display: grid;
	grid-template-columns: 1fr auto;
	align-items: center;
	gap: 8px;
}

.input-suffix span {
	font-family: var(--font-mono);
	font-size: 13px;
	color: var(--ink-muted);
}

.hint {
	font-size: 12px;
	line-height: 1.5;
	color: var(--ink-muted);
	margin-top: 6px;
}

.hint--warn {
	color: var(--ink-2);
	border-left: 3px solid var(--warning);
	padding-left: 8px;
}

.segmented {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 6px;
}

.segmented button {
	font-family: var(--font-mono);
	font-size: 14px;
	padding: 9px 4px;
	color: var(--ink-2);
	background: var(--surface-sunk);
	border: 1px solid var(--rule-strong);
	border-radius: var(--radius);
	cursor: pointer;
}

.segmented button[aria-pressed="true"] {
	background: var(--letterhead);
	border-color: var(--letterhead);
	color: var(--letterhead-ink);
}

.link-btn {
	background: none;
	border: none;
	padding: 0;
	font: inherit;
	font-size: 12px;
	color: var(--series-1);
	text-decoration: underline;
	text-underline-offset: 3px;
	cursor: pointer;
}

.privacy {
	margin-top: 18px;
	padding-top: 14px;
	border-top: 1px solid var(--rule);
	font-size: 12px;
	line-height: 1.6;
	color: var(--ink-muted);
}

/* ------------------------------------------------------------ 報告卡片 */

.card {
	background: var(--surface);
	border: 1px solid var(--rule);
	border-radius: var(--radius);
	padding: 22px;
	margin-bottom: 20px;
}

.card-head {
	display: flex;
	align-items: baseline;
	gap: 12px;
	padding-bottom: 12px;
	margin-bottom: 18px;
	border-bottom: 2px solid var(--letterhead);
}

.card-num {
	font-family: var(--font-mono);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.1em;
	color: var(--ink-muted);
}

.card-head h2 {
	font-size: 18px;
	font-weight: 700;
	letter-spacing: -0.01em;
}

.card-head .sub {
	font-size: 13px;
	color: var(--ink-muted);
	margin-left: auto;
}

.card p { margin: 0 0 12px; }
.card p:last-child { margin-bottom: 0; }

.note {
	font-size: 13px;
	line-height: 1.65;
	color: var(--ink-2);
}

/* ------------------------------------------------------------ 檢驗列（招牌元件） */

.labrow {
	display: grid;
	grid-template-columns: 1fr;
	gap: 10px;
	padding: 14px 0;
	border-bottom: 1px solid var(--rule);
}

.labrow:last-of-type { border-bottom: none; }

@media (min-width: 620px) {
	.labrow {
		grid-template-columns: 150px 150px 1fr auto;
		align-items: center;
		gap: 16px;
	}
}

.lab-name { font-size: 14px; color: var(--ink-2); }

.lab-value {
	font-family: var(--font-mono);
	font-size: 26px;
	font-weight: 600;
	letter-spacing: -0.02em;
	font-variant-numeric: tabular-nums;
}

.lab-value small {
	font-size: 13px;
	font-weight: 400;
	color: var(--ink-muted);
	margin-left: 4px;
}

.lab-range { min-width: 0; position: relative; } /* .range-marker 的定位基準 */

.range-track {
	position: relative;
	height: 10px;
	border-radius: 5px;
	overflow: hidden;
	display: flex;
	background: var(--surface-sunk);
}

.range-zone { height: 100%; }
.range-zone--good { background: color-mix(in srgb, var(--good) 34%, transparent); }
.range-zone--warn { background: color-mix(in srgb, var(--warning) 46%, transparent); }
.range-zone--crit { background: color-mix(in srgb, var(--critical) 40%, transparent); }

.range-marker {
	position: absolute;
	top: -4px;
	width: 3px;
	height: 18px;
	background: var(--ink);
	border-radius: 2px;
	transform: translateX(-1.5px);
}

.range-scale {
	position: relative;
	height: 15px;
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--ink-muted);
	margin-top: 4px;
}

.range-scale span {
	position: absolute;
	top: 0;
	transform: translateX(-50%);
	white-space: nowrap;
}

.range-scale span:first-child { transform: none; }
.range-scale span:last-child { transform: translateX(-100%); }

.flag {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 13px;
	font-weight: 600;
	padding: 4px 10px;
	border-radius: 999px;
	border: 1px solid;
	white-space: nowrap;
}

.flag i { font-style: normal; font-family: var(--font-mono); font-weight: 700; }
.flag--good { color: var(--good-text); border-color: color-mix(in srgb, var(--good) 55%, transparent); background: color-mix(in srgb, var(--good) 10%, transparent); }
.flag--warn { color: var(--ink); border-color: color-mix(in srgb, var(--warning) 70%, transparent); background: color-mix(in srgb, var(--warning) 18%, transparent); }
.flag--crit { color: var(--critical); border-color: color-mix(in srgb, var(--critical) 55%, transparent); background: color-mix(in srgb, var(--critical) 12%, transparent); }

.callout {
	margin-top: 14px;
	padding: 12px 14px;
	border-left: 3px solid var(--critical);
	background: color-mix(in srgb, var(--critical) 7%, transparent);
	font-size: 14px;
	line-height: 1.65;
}

.callout--quiet {
	border-left-color: var(--rule-strong);
	background: var(--surface-sunk);
}

/* ------------------------------------------------------------ 統計磚 */

.tiles {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
	gap: 1px;
	background: var(--rule);
	border: 1px solid var(--rule);
	border-radius: var(--radius);
	overflow: hidden;
}

.tile {
	background: var(--surface);
	padding: 14px 16px;
}

.tile-label {
	font-size: 12px;
	color: var(--ink-muted);
	margin-bottom: 4px;
}

.tile-value {
	font-family: var(--font-mono);
	font-size: 24px;
	font-weight: 600;
	letter-spacing: -0.02em;
	font-variant-numeric: tabular-nums;
	line-height: 1.2;
}

.tile-value.is-neg { color: var(--critical); }
.tile-value.is-pos { color: var(--good-text); }

.tile-sub {
	font-size: 12px;
	color: var(--ink-muted);
	margin-top: 2px;
	font-variant-numeric: tabular-nums;
}

/* 勝率大數字 */
.hero-figure {
	display: flex;
	align-items: baseline;
	gap: 14px;
	flex-wrap: wrap;
	margin-bottom: 14px;
}

.hero-num {
	font-family: var(--font-mono);
	font-size: clamp(48px, 12vw, 76px);
	font-weight: 700;
	letter-spacing: -0.04em;
	line-height: 1;
	color: var(--series-1);
}

.hero-cap {
	font-size: 14px;
	color: var(--ink-2);
	max-width: 22em;
}

/* ------------------------------------------------------------ 圖表 */

.chart-wrap {
	overflow-x: auto;
	overflow-y: hidden;
	position: relative;
}

.chart-wrap svg { display: block; }

.legend {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 18px;
	margin-bottom: 12px;
	font-size: 13px;
	color: var(--ink-2);
}

.legend-item { display: inline-flex; align-items: center; gap: 7px; }

.swatch {
	width: 14px;
	height: 12px;
	border-radius: 2px;
	flex: none;
}

.swatch--line { height: 3px; border-radius: 2px; }
.swatch--dash {
	height: 0;
	border-top: 3px dashed var(--ink-muted);
	background: none;
	border-radius: 0;
}

.tooltip {
	position: absolute;
	pointer-events: none;
	z-index: 5;
	min-width: 168px;
	background: var(--surface);
	border: 1px solid var(--rule-strong);
	border-radius: var(--radius);
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.14);
	padding: 10px 12px;
	font-size: 12.5px;
	line-height: 1.5;
	opacity: 0;
	transition: opacity 0.12s;
}

.tooltip.is-on { opacity: 1; }

.tooltip .tt-title {
	font-family: var(--font-mono);
	font-weight: 600;
	margin-bottom: 6px;
	padding-bottom: 5px;
	border-bottom: 1px solid var(--rule);
}

.tooltip dl {
	margin: 0;
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 2px 12px;
}

.tooltip dt { color: var(--ink-2); }
.tooltip dd {
	margin: 0;
	font-family: var(--font-mono);
	font-variant-numeric: tabular-nums;
	text-align: right;
}

/* 資料表（圖表的無障礙替代） */
.table-toggle {
	margin-top: 12px;
	font-size: 13px;
}

.table-toggle summary {
	cursor: pointer;
	color: var(--ink-2);
}

.data-table-wrap { overflow-x: auto; margin-top: 10px; }

table.data {
	border-collapse: collapse;
	font-family: var(--font-mono);
	font-size: 12.5px;
	font-variant-numeric: tabular-nums;
	width: 100%;
	min-width: 460px;
}

table.data th,
table.data td {
	padding: 5px 10px;
	text-align: right;
	border-bottom: 1px solid var(--rule);
	white-space: nowrap;
}

table.data th:first-child,
table.data td:first-child { text-align: left; }

table.data thead th {
	color: var(--ink-muted);
	font-weight: 600;
	border-bottom: 1px solid var(--rule-strong);
}

/* ------------------------------------------------------------ 清單區塊 */

.checklists {
	display: grid;
	grid-template-columns: 1fr;
	gap: 20px;
}

@media (min-width: 720px) {
	.checklists { grid-template-columns: 1fr 1fr; }
}

.checklist { margin: 0; padding: 0; list-style: none; }

.checklist li {
	display: grid;
	grid-template-columns: 22px 1fr;
	gap: 10px;
	padding: 8px 0;
	border-bottom: 1px solid var(--rule);
	font-size: 14.5px;
	line-height: 1.6;
}

.checklist li:last-child { border-bottom: none; }
.checklist .mark { font-weight: 700; }
.checklist--yes .mark { color: var(--good-text); }
.checklist--no .mark { color: var(--critical); }

.sublist { margin: 0; padding-left: 1.2em; }
.sublist li { padding: 4px 0; font-size: 14px; line-height: 1.65; }

/* ------------------------------------------------------------ 免責與頁尾 */

.disclaimer {
	font-size: 13px;
	line-height: 1.8;
	color: var(--ink-2);
	background: var(--surface-sunk);
	border: 1px solid var(--rule);
	border-left: 4px solid var(--critical);
	border-radius: var(--radius);
	padding: 16px 18px;
}

footer {
	border-top: 1px solid var(--rule);
	padding: 28px 0 56px;
	font-size: 13px;
	line-height: 1.75;
	color: var(--ink-2);
}

footer .foot-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 18px;
}

@media (min-width: 720px) {
	footer .foot-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

footer h3 {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--ink-muted);
	margin: 0 0 8px;
	font-weight: 600;
}

footer ul { margin: 0; padding-left: 1.1em; }

/* ------------------------------------------------------------ modal */

.modal-backdrop {
	position: fixed;
	inset: 0;
	background: rgba(8, 12, 11, 0.62);
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 20px;
	z-index: 100;
}

.modal-backdrop[hidden] { display: none; }

.modal {
	background: var(--surface);
	border-radius: var(--radius);
	max-width: 560px;
	width: 100%;
	max-height: 88vh;
	overflow-y: auto;
	padding: 26px 24px 22px;
	border-top: 5px solid var(--critical);
}

.modal h2 {
	font-size: 18px;
	margin: 0 0 14px;
}

.modal p {
	font-size: 13.5px;
	line-height: 1.8;
	color: var(--ink-2);
	margin: 0 0 16px;
}

.btn {
	font: inherit;
	font-size: 15px;
	font-weight: 600;
	padding: 11px 22px;
	border-radius: var(--radius);
	border: 1px solid var(--letterhead);
	background: var(--letterhead);
	color: var(--letterhead-ink);
	cursor: pointer;
}

.btn:hover { opacity: 0.9; }

/* ------------------------------------------------------------ 狀態 */

.status {
	font-family: var(--font-mono);
	font-size: 12px;
	color: var(--ink-muted);
	min-height: 18px;
}

.is-busy { opacity: 0.55; transition: opacity 0.15s; }

.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	margin: -1px;
	padding: 0;
	overflow: hidden;
	clip: rect(0 0 0 0);
	white-space: nowrap;
	border: 0;
}

@media (prefers-reduced-motion: reduce) {
	* { transition: none !important; animation: none !important; }
}