:root {
  color-scheme: dark;
  --bg: #000000;
  --surface: #141414;
  --surface-2: #0d0d0d;
  --text: #ffffff;
  --muted: #a8a8a8;
  --border: #2a2a2a;
  --primary: #d4af37;
  --primary-text: #000000;
  --accent: #e6c65c;
  --danger: #ff7b72;
  --danger-bg: #2a1210;
  --ok-bg: #10261a;
  --ok-text: #7ddc98;
  --focus: #e6c65c;
  --shadow: none;
  --radius: 1rem;
  --nav-h: 4rem;
  --chart-night: #d4af37;
  --chart-nap: #f3e2a0;
  --chart-wake: #ffffff;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; font-size: 85%; } /* ~15% smaller UI; all sizes in rem */

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1rem/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

[hidden] { display: none !important; }

.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;
}

.skip-link {
  position: absolute; left: 0.5rem; top: -60px; z-index: 100;
  background: var(--primary); color: var(--primary-text);
  padding: 0.625rem 0.875rem; border-radius: 0.5rem;
}
.skip-link:focus { top: calc(0.5rem + env(safe-area-inset-top)); }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

/* header */
.app-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center; gap: 0.75rem;
  padding: calc(0.4rem + env(safe-area-inset-top)) 1rem 0.4rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.app-title { margin: 0; font-size: 1.05rem; letter-spacing: .02em; text-align: center; color: var(--primary); }


.app-main {
  max-width: 40rem; margin: 0 auto;
  padding: 1rem 1rem calc(var(--nav-h) + 1.5rem + env(safe-area-inset-bottom));
}

.tab-panel { display: flex; flex-direction: column; gap: 1rem; }
.tab-panel[hidden] { display: none; }

.banner {
  margin: 0; padding: 0.625rem 1rem; background: var(--danger-bg); color: var(--danger);
  font-size: .9rem; text-align: center;
}

/* cards */
.card {
  background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid var(--border); padding: 1rem;
}
.card h2 { margin: 0 0 0.5rem; font-size: 1.1rem; color: var(--accent); }
.card h3 { margin: 0 0 0.5rem; font-size: 1rem; }
.stack { display: flex; flex-direction: column; gap: 0.75rem; }
.stack > h2, .stack > h3, .stack > p { margin: 0; }
.row { display: flex; flex-wrap: wrap; gap: 0.625rem; }
.pad { padding: 0.5rem 0; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.error-text { color: var(--danger); margin: 0; min-height: 0; }
.error-text:empty { display: none; }
.noscript { padding: 1rem; }

.flash {
  margin: 0; padding: 0.625rem 0.875rem; border-radius: 0.75rem;
  background: var(--ok-bg); color: var(--ok-text);
}

/* forecast */
.forecast {
  background: linear-gradient(160deg, #1c1810, var(--surface));
}
.forecast p { margin: 0 0 0.375rem; }
.forecast-meta { color: var(--muted); font-size: .9rem; }
.forecast-state { font-weight: 600; color: var(--accent); }
.forecast-big strong { color: var(--accent); }
.forecast-big { font-size: 1.6rem; line-height: 1.2; }
.forecast-big strong { font-size: 2.2rem; font-variant-numeric: tabular-nums; }
.forecast-count { font-size: 1.05rem; }
.window {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin: 0.625rem 0;
}
.window > div { background: var(--surface); border: 1px solid var(--border); border-radius: 0.75rem; padding: 0.5rem; text-align: center; }
.window .ideal { border-color: var(--primary); }
.window dt { font-size: .75rem; color: var(--muted); }
.window dd { margin: 0; font-weight: 700; font-variant-numeric: tabular-nums; }
.badges { display: flex; flex-wrap: wrap; gap: 0.375rem; margin-top: 0.5rem !important; }
.badge {
  display: inline-block; padding: 2px 0.625rem; border-radius: 62.4375rem; font-size: .8rem;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
}
.conf-low { border-color: var(--danger); }
.conf-high { border-color: var(--ok-text); }
.notes { margin: 0.5rem 0; padding-left: 1.25rem; color: var(--muted); font-size: .9rem; }
.disclaimer { font-size: .8rem; color: var(--muted); margin: 0.5rem 0 0 !important; }

/* forms */
.field { display: flex; flex-direction: column; gap: 0.375rem; border: 0; padding: 0; margin: 0; min-width: 0; }
.field label, .field .label, .field legend { font-weight: 600; font-size: .9rem; padding: 0; }

input[type=text], input[type=number], input[type=date], input[type=datetime-local], input[type=file],
select, textarea {
  font: inherit; font-size: 16px; /* >=16px prevents iOS zoom on focus */
  color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 0.75rem;
  min-height: 40px; padding: 0.5rem 0.75rem; width: 100%; max-width: 100%;
  -webkit-appearance: none; appearance: none;
}
input[type=datetime-local], input[type=date] { min-width: 0; }
select {
  padding-right: 2rem;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 1.125rem) 50%, calc(100% - 0.8125rem) 50%;
  background-size: 0.3125rem 0.3125rem; background-repeat: no-repeat;
}
textarea { font-family: ui-monospace, Menlo, monospace; font-size: 16px; resize: vertical; }
input[type=file] { padding: 0.5rem; }

.btn {
  font: inherit; font-weight: 600; min-height: 40px; min-width: 40px; padding: 0.5rem 1.125rem;
  border-radius: 0.75rem; border: 1px solid var(--border); background: var(--surface); color: var(--text);
  cursor: pointer; -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(.98); }
.btn.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.btn.primary:hover { background: var(--accent); }
.btn.big { min-height: 4rem; font-size: 1.2rem; border-radius: 1rem; width: 100%; }
.btn.small { padding: 0.375rem 0.75rem; font-size: .9rem; }
.btn.danger { color: var(--danger); border-color: var(--danger); }
.btn.link { background: none; border: 0; color: var(--muted); text-decoration: underline; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  font: inherit; min-height: 40px; min-width: 40px; padding: 0.375rem 0.875rem; border-radius: 62.4375rem;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer;
}
.chip[aria-pressed=true] { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }

.segmented { display: flex; flex-direction: row; flex-wrap: wrap; gap: 0; }
.segmented legend { width: 100%; margin-bottom: 0.375rem; }
.seg { position: relative; flex: 1 1 auto; }
.seg input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.seg label {
  display: flex; align-items: center; justify-content: center; min-height: 40px; padding: 0.375rem 0.75rem;
  border: 1px solid var(--border); background: var(--surface); font-weight: 500; text-align: center;
}
.seg:first-of-type label { border-radius: 0.75rem 0 0 0.75rem; }
.seg:last-of-type label { border-radius: 0 0.75rem 0.75rem 0; }
.seg + .seg label { border-left: 0; }
.seg input:checked + label { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.seg input:focus-visible + label { outline: 3px solid var(--focus); outline-offset: 2px; }

.radio { display: flex; align-items: flex-start; gap: 0.625rem; padding: 0.375rem 0; }
.radio input { width: 1.5rem; height: 1.5rem; margin: 0.625rem 0 0; flex: none; }
.radio label { flex: 1; min-height: 40px; display: flex; align-items: center; font-weight: 400; }

/* lists */
.entries { list-style: none; margin: 0; padding: 0; }
.entry {
  display: flex; align-items: center; justify-content: space-between; gap: 0.625rem; flex-wrap: wrap;
  padding: 0.625rem 0; border-top: 1px solid var(--border);
}
.entry:first-child { border-top: 0; }
.entry.editing { background: var(--surface-2); border-radius: 0.75rem; padding: 0.625rem; }
.entry.block { display: block; }
.entry-main { display: flex; flex-direction: column; min-width: 0; }
.entry-time { font-weight: 600; }
.entry-sub { color: var(--muted); font-size: .9rem; }
.entry-actions { display: flex; gap: 0.5rem; }
.type-night { border-color: var(--accent); }

.subform { border-top: 1px solid var(--border); padding-top: 0.75rem; }
.entry .subform { border-top: 0; padding-top: 0; }

.error-box { background: var(--danger-bg); color: var(--danger); border-radius: 0.75rem; padding: 0.75rem; }
.error-box ul, .errors { margin: 0.375rem 0 0; padding-left: 1.25rem; }
.preview { background: var(--surface-2); border-radius: 0.75rem; padding: 0.75rem; display: flex; flex-direction: column; gap: 0.75rem; }
.summary p { margin: 0 0 0.25rem; }

a { color: var(--primary); }

/* bottom nav */
.bottom-nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: flex; background: var(--surface); border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left); padding-right: env(safe-area-inset-right);
}
.nav-btn {
  flex: 1; min-height: var(--nav-h); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  font: inherit; font-size: .75rem; color: var(--muted); background: none; border: 0; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.nav-icon { font-size: 1.4rem; line-height: 1; }
.nav-btn[aria-current=page] { color: var(--primary); font-weight: 700; }
.nav-btn[aria-current=page] .nav-icon { transform: translateY(-1px); }

/* analysis (charts by Agent C) */
canvas { max-width: 100%; }

@media (min-width: 700px) {
  .app-main { padding-top: 1.5rem; }
}

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

/* forecast details toggle */
.details { margin-top: 0.5rem; border-top: 1px solid var(--border); }
.details summary {
  list-style: none; cursor: pointer; min-height: 40px; display: flex; align-items: center; gap: 0.5rem;
  color: var(--primary); font-weight: 600; font-size: .95rem;
}
.details summary::-webkit-details-marker { display: none; }
.details summary::before { content: "\25B8"; display: inline-block; transition: transform .15s; }
.details[open] summary::before { transform: rotate(90deg); }
.details .disclaimer:first-child, .details .notes:first-child { margin-top: 0; }

/* sleep start choice */
.start-title { margin: 0; font-weight: 600; font-size: 1rem; color: var(--accent); }
.start-choice { display: grid; grid-template-columns: 1fr 1fr; gap: 0.625rem; }

/* ===== Analyse-Tab (js/analysis.js) – .an-* ===== */
.an { display: flex; flex-direction: column; gap: 0.875rem; padding-bottom: 0.5rem; }
.an-head { display: flex; flex-direction: column; gap: 0.5rem; }
.an-title { margin: 0; font-size: 1.25rem; font-weight: 700; }
.an-seg { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.25rem; padding: 0.25rem; border-radius: 0.875rem; background: var(--surface-2); border: 1px solid var(--border); }
.an-seg button { min-height: 40px; border: 0; border-radius: 0.625rem; background: transparent; color: inherit; font: inherit; font-weight: 600; cursor: pointer; }
.an-seg button[aria-checked="true"] { background: var(--primary); color: var(--primary-text); }
.an-seg button:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.an-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.625rem; }
.an-stat { padding: 0.75rem 0.875rem; border-radius: 0.875rem; background: var(--surface); border: 1px solid var(--border); }
.an-stat b { display: block; font-size: 1.3rem; line-height: 1.2; font-variant-numeric: tabular-nums; }
.an-stat span { font-size: .8rem; color: var(--muted); }
.an-card { padding: 0.875rem 0.75rem 0.75rem; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.an-card h3 { margin: 0 0.25rem 2px; font-size: 1rem; }
.an-card p { margin: 0 0.25rem 0.625rem; font-size: .82rem; color: var(--muted); }
.an-canvas { position: relative; width: 100%; }  /* Höhe per JS (CSSOM) */
.an-scroll { max-height: 70vh; overflow-y: auto; overscroll-behavior: contain; }
.an-legend { display: flex; flex-wrap: wrap; gap: 0.375rem 0.875rem; margin: 0.5rem 0.25rem 0; font-size: .8rem; }
.an-legend i { display: inline-block; width: 0.75rem; height: 0.75rem; border-radius: 3px; margin-right: 0.375rem; vertical-align: -1px; }
.an-empty { padding: 1.75rem 1.125rem; text-align: center; border-radius: var(--radius); border: 1px dashed var(--border); }
.an-empty b { display: block; margin-bottom: 0.375rem; font-size: 1.05rem; }
.an-empty span { color: var(--muted); font-size: .9rem; }
/* ===== Ende Analyse-Tab ===== */
.start-choice .btn.big { min-height: 3.25rem; font-size: 1.1rem; padding-top: 0.25rem; padding-bottom: 0.25rem; }

/* subtle gold outline for all cards */
:root { --card-border: rgba(212, 175, 55, .32); }
.card, .an-card, .an-stat { border: 1px solid var(--card-border); }
.an { gap: 1rem; }
.an-stats { gap: 1rem; }

/* profile selector in the bottom bar */
.nav-profile {
  position: relative; flex: 0 0 auto; width: 6.2rem; min-height: var(--nav-h);
  display: flex; align-items: center; justify-content: center;
  margin: 0.5rem 0; min-height: calc(var(--nav-h) - 1rem);
  border-right: 1px solid rgba(212, 175, 55, .28);
}
.nav-profile-face, .nav-profile-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  font: inherit; font-size: .75rem; color: var(--accent); max-width: 100%; padding: 0 0.4rem;
}
.nav-profile-empty { background: none; border: 0; cursor: pointer; min-height: 40px; color: var(--muted); }
.nav-profile-face .nav-label { display: flex; align-items: center; max-width: 100%; font-weight: 600; }
.nav-profile-name { display: block; max-width: 4.6rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-chev { margin-left: 2px; font-size: .7rem; }
.nav-profile select {
  position: absolute; inset: 0; width: 100%; height: 100%; min-height: 40px;
  opacity: 0; cursor: pointer; border-radius: 0; padding: 0; font-size: 16px;
}
.nav-profile:has(select:focus-visible) { outline: 3px solid var(--focus); outline-offset: -3px; border-radius: 0.5rem; }
.nav-btn { min-width: 0; }

/* collapsible manual-entry card */
.card.collapsible { padding: 0 1rem; }
.card.collapsible > summary {
  list-style: none; cursor: pointer; min-height: 44px; display: flex; align-items: center; gap: 0.5rem;
  font-size: 1.1rem; font-weight: 700; color: var(--accent);
}
.card.collapsible > summary::-webkit-details-marker { display: none; }
.card.collapsible > summary::before { content: "\25B8"; display: inline-block; transition: transform .15s; }
.card.collapsible[open] > summary::before { transform: rotate(90deg); }
.card.collapsible[open] { padding-bottom: 1rem; }
.card.collapsible .form-body { margin-top: 0.5rem; }