:root {
	--bg: #0e0e0e;
	--surface: #1a1a1a;
	--border: #2a2a2a;
	--text: #d4c9b0;
	--text-muted: #5a5550;
	--week-past: #3d3830;
	--week-past-border: #4a4540;
	--week-future: #c8e6c9;
	--week-future-border: #a5d6a7;
	--week-before-birth: #1a1a1a;
	--week-before-birth-border: #222;
	--accent: #c4a35a;
	--label: #6b6560;
    --cell-size: 16px;
    --cell-gap: 3px;
}

* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

body {
	background: var(--bg);
	color: var(--text);
	font-family: 'JetBrains Mono', monospace;
	min-height: 100vh;
	padding: 40px 20px 80px;
}

header {
	text-align: center;
	margin-bottom: 48px;
}

header h1 {
	font-family: 'Playfair Display', serif;
	font-size: clamp(1.6rem, 4vw, 2.8rem);
	font-weight: 400;
	letter-spacing: 0.04em;
	color: var(--text);
	margin-bottom: 6px;
}

header h1 em {
	color: var(--accent);
	font-style: italic;
}

header p {
	color: var(--text-muted);
	letter-spacing: 0.15em;
	text-transform: uppercase;
}

/* Date picker */
.datepicker-wrap {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	margin-bottom: 48px;
	flex-wrap: wrap;
}

.datepicker-label {
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--text-muted);
	margin-right: 4px;
}

.datepicker-wrap select {
	background: var(--surface);
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: 3px;
	padding: 6px 10px;
	font-family: 'JetBrains Mono', monospace;
	cursor: pointer;
	outline: none;
	appearance: none;
	-webkit-appearance: none;
}

.datepicker-wrap select:focus {
	border-color: var(--accent);
}

.sep {
	color: var(--text-muted);
	font-size: 1rem;
}

/* Stats */
.stats {
	display: flex;
	gap: 32px;
	justify-content: center;
	margin-bottom: 40px;
	flex-wrap: wrap;
}

.stat {
	text-align: center;
}

.stat-val {
	font-size: 1.6rem;
	font-family: 'Playfair Display', serif;
	color: var(--accent);
	display: block;
}

.stat-lbl {
	text-transform: uppercase;
	letter-spacing: 0.15em;
	color: var(--text-muted);
}

/* Grid container */
.grid-section {
	max-width: 1800px;
	margin: 0 auto;
}

.grid-outer {
	display: flex;
	gap: 32px;
	justify-content: center;
	align-items: flex-start;
	flex-wrap: wrap;
}

.grid-block-wrap {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
}

.week-labels {
	display: grid;
    grid-template-columns: repeat(52, var(--cell-size));
    gap: var(--cell-gap);
    margin-left: 58px;
	margin-bottom: 4px;
}

.week-num {
	font-size: 0.62rem;
	color: var(--label);
	text-align: center;
	line-height: 12px;
}

.grid-with-years {
	display: flex;
	gap: 6px;
	align-items: flex-start;
}

.year-labels {
	display: flex;
	flex-direction: column;
	gap: var(--cell-gap);
	padding-top: 0;
}

.year-lbl {
	font-size: 0.62rem;
	color: var(--label);
	height: var(--cell-size);
    line-height: var(--cell-size);
	text-align: right;
	width: 30px;
}

.grid {
	display: grid;
	grid-template-columns: repeat(52, var(--cell-size));
    grid-auto-rows: var(--cell-size);
    gap: var(--cell-gap);
}

/* Week cell */
.week {
	width: var(--cell-size);
    height: var(--cell-size);
	border-radius: 2px;
	border: 1px solid transparent;
	position: relative;
	overflow: hidden;
}

.week.before-birth {
	background: var(--week-before-birth);
	border-color: var(--week-before-birth-border);
}

.week.past {
	background: var(--week-past);
	border-color: var(--week-past-border);
}

.week.current {
	border-color: var(--accent);
}

.week.future {
	background: var(--week-future);
	border-color: var(--week-future-border);
}

/* Partial fill overlay */
.week .fill {
	position: absolute;
	top: 0;
	left: 0;
	height: 100%;
	pointer-events: none;
}

/* Legend */
.legend {
	display: flex;
	gap: 20px;
	justify-content: center;
	margin-top: 36px;
	flex-wrap: wrap;
}

.legend-item {
	display: flex;
	align-items: center;
	gap: 6px;
	color: var(--text-muted);
	text-transform: uppercase;
	letter-spacing: 0.1em;
}

.legend-box {
	width: 12px;
	height: 12px;
	border-radius: 2px;
	border: 1px solid transparent;
}

.legend-box.past {
	background: var(--week-past);
	border-color: var(--week-past-border);
}

.legend-box.future {
	background: var(--week-future);
	border-color: var(--week-future-border);
}

.legend-box.before {
	background: var(--week-before-birth);
	border-color: var(--week-before-birth-border);
}

.legend-box.current {
	background: var(--week-past);
	border-color: var(--accent);
}

.block-title {
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--text-muted);
	text-align: center;
	margin-bottom: 8px;
	margin-left: 36px;
}

/* Axis label */
.axis-years {
	writing-mode: vertical-rl;
	transform: rotate(180deg);
	font-size: 0.75rem;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--label);
	align-self: center;
	margin-right: 2px;
}

.axis-weeks {
	font-size: 0.75rem;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--label);
	text-align: center;
	margin-bottom: 4px;
	margin-left: 36px;
}

.arrow {
	font-size: 0.7rem;
}

/* Gender toggle */
.gender-wrap {
	display: flex;
	gap: 6px;
	align-items: center;
}
.gender-btn {
	background: var(--surface);
	color: var(--text-muted);
	border: 1px solid var(--border);
	border-radius: 3px;
	padding: 6px 14px;
	font-family: 'JetBrains Mono', monospace;
	font-size: 0.78rem;
	letter-spacing: 0.1em;
	cursor: pointer;
	transition: all 0.15s;
}
.gender-btn.active {
	background: var(--surface);
	color: var(--accent);
	border-color: var(--accent);
}

/* Life expectancy end marker */
.week.end-partial {
	border-color: var(--accent);
}

/* ── Grid: 53 Spalten (KW53-Jahre) ───────────────────────────── */
/* week-labels und .grid bekommen ihre column-count per JS gesetzt */
/* (gridTemplateColumns: repeat(53, var(--cell-size))) */

/* Platzhalter-Zellen für fehlende KW53 */
.week.week-placeholder {
    visibility: hidden;
    pointer-events: none;
}

/* ── Mehrzeiliger Tooltip ─────────────────────────────────────── */
#tt {
	position: fixed;
	pointer-events: none;
	z-index: 9999;
	background: #1e1c18;
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: 4px;
	padding: 5px 9px;
	font-family: 'JetBrains Mono', monospace;
	font-size: 0.68rem;
	letter-spacing: 0.04em;
	white-space: pre;
	line-height: 1.6;
	opacity: 0;
	transition: opacity 0.08s;
	box-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
#tt.show { opacity: 1; }

#btn-export {
    background: var(--surface);
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 3px;
    padding: 6px 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.15s;
}
#btn-export:hover { background: var(--accent); color: var(--bg); }
#btn-export:disabled { opacity: 0.5; cursor: wait; }

/* ─── Custom Select ─────────────────────────────────────────────────────────── */

.custom-select {
    position: relative;
    display: inline-block;
    user-select: none;
}

.custom-select__trigger {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 6px 28px 6px 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    cursor: pointer;
    outline: none;
    white-space: nowrap;
    position: relative;
    transition: border-color 0.15s;
    min-width: 48px;
    text-align: center;
}

.custom-select__trigger::after {
    content: '';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid var(--text-muted);
    transition: transform 0.15s, border-top-color 0.15s;
    pointer-events: none;
}

.custom-select.open .custom-select__trigger {
    border-color: var(--accent);
}

.custom-select.open .custom-select__trigger::after {
    transform: translateY(-50%) rotate(180deg);
    border-top-color: var(--accent);
}

.custom-select__dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 100%;
    background: #141410;
    border: 1px solid var(--border);
    border-radius: 4px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.7), 0 2px 8px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow: hidden;

    /* custom scrollbar container */
    max-height: 320px;
    overflow-y: auto;

    /* hide default scrollbar, use custom */
    scrollbar-width: thin;
    scrollbar-color: var(--week-past-border) transparent;

    display: none;
    animation: selectFadeIn 0.1s ease;
}

.custom-select__dropdown::-webkit-scrollbar {
    width: 4px;
}

.custom-select__dropdown::-webkit-scrollbar-track {
    background: transparent;
}

.custom-select__dropdown::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.custom-select__dropdown::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

.custom-select.open .custom-select__dropdown {
    display: block;
}

@keyframes selectFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.custom-select__option {
    padding: 6px 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    color: var(--accent);
    cursor: pointer;
    transition: background 0.08s, color 0.08s;
    white-space: nowrap;
    text-align: left;
}

.custom-select__option:hover {
    background: rgba(196, 163, 90, 0.1);
    color: var(--text);
}

.custom-select__option.selected {
    color: var(--accent);
    background: rgba(196, 163, 90, 0.08);
}