/* Calm, minimal, mobile-first. System fonts only. */

:root {
  color-scheme: light dark;
  --bg: #F6F4EF;
  --surface: #FFFFFF;
  --surface-2: #ECE8E0;
  --text: #262825;
  --muted: #676B64;
  --accent: #4C7669;
  --accent-text: #FFFFFF;
  --accent-soft: #E2EBE7;
  --border: #E2DED5;
  --danger: #9E4A3D;
  --radius: 16px;
  --pad: 20px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151715;
    --surface: #1E211F;
    --surface-2: #2C302D;
    --text: #E7E5E0;
    --muted: #A2A69F;
    --accent: #8DB7A9;
    --accent-text: #10201B;
    --accent-soft: #25332E;
    --border: #323632;
    --danger: #E3907F;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body.covered #app { visibility: hidden; }

h1, h2, h3 { line-height: 1.2; }
h1 { font-size: 28px; font-weight: 650; margin: 0; }
h2 { font-size: 20px; font-weight: 600; margin: 0 0 8px; }
h3 { font-size: 14px; font-weight: 600; color: var(--muted); letter-spacing: 0.02em; margin: 16px 0 4px; text-transform: uppercase; }
p { margin: 0 0 8px; }

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

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

.muted { color: var(--muted); }
.small { font-size: 15px; }
.error { color: var(--danger); margin: 0; }
.error:empty { display: none; }

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

/* Layout */

.screen, .auth {
  max-width: 640px;
  margin: 0 auto;
  padding:
    calc(env(safe-area-inset-top) + 12px)
    calc(env(safe-area-inset-right) + 16px)
    calc(env(safe-area-inset-bottom) + 96px)
    calc(env(safe-area-inset-left) + 16px);
}

.auth { max-width: 480px; padding-top: calc(env(safe-area-inset-top) + 32px); padding-bottom: 48px; }
.auth h1 { margin-bottom: 8px; }
.auth .lead { font-size: 19px; color: var(--muted); margin-bottom: 20px; }
.auth .stack > .button { width: 100%; }
.logo { display: block; border-radius: 18px; margin-bottom: 20px; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  min-height: 56px; margin-bottom: 12px;
}
.date-nav { display: flex; align-items: center; gap: 4px; min-width: 0; }
.date-title { min-width: 0; padding: 0 4px; }
.date-title p { margin: 2px 0 0; }

.stack > * + * { margin-top: 12px; }
.stack-tight > * + * { margin-top: 8px; }
.row { display: flex; align-items: center; gap: 8px; }
.row > .input { flex: 1; min-width: 0; }
.row.wrap { flex-wrap: wrap; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}
.card.notice { background: var(--accent-soft); border-color: transparent; }
.card.notice .row { margin-top: 12px; flex-wrap: wrap; }

.intro { color: var(--muted); margin: 4px 0 0; }
.status { color: var(--muted); min-height: 1.5em; margin: 0 0 8px; }

.plain-list { list-style: none; margin: 0; padding: 0; }
.plain-list li { position: relative; padding-left: 18px; }
.plain-list li + li { margin-top: 8px; }
.plain-list li::before {
  content: ""; position: absolute; left: 2px; top: 0.62em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}
.plain-list li p { margin: 0; }

/* Collapsible sections */

details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }

.card.section, .card.disclosure { padding: 0; }
.card.section > summary, .card.disclosure > summary {
  position: relative; display: flex; flex-direction: column; justify-content: center;
  min-height: 60px; padding: 14px 52px 14px 16px;
}
.card.disclosure > summary { font-weight: 600; }
.section-title { font-size: 19px; font-weight: 600; }
.section-sub { font-size: 15px; color: var(--muted); }
.section-body, .disclosure-body { padding: 0 16px 16px; }

.card.section > summary::after, .card.disclosure > summary::after,
.module > summary::after, .disclosure > summary::after {
  content: ""; position: absolute; right: 22px; top: 50%;
  width: 9px; height: 9px; margin-top: -7px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted);
  transform: rotate(45deg); transition: transform 0.15s;
}
.card.section[open] > summary::after, .card.disclosure[open] > summary::after,
.module[open] > summary::after, .disclosure[open] > summary::after {
  transform: rotate(-135deg); margin-top: -2px;
}

.settings-group .disclosure { border-top: 1px solid var(--border); }
.settings-group .disclosure > summary {
  position: relative; display: flex; align-items: center; min-height: 52px;
  padding-right: 40px; font-weight: 500;
}
.settings-group .disclosure > summary::after { right: 6px; }
.settings-group .disclosure-body { padding: 0 0 16px; }

details.nested > summary { color: var(--accent); padding: 10px 0; min-height: 44px; }

.module { border-top: 1px solid var(--border); }
.module > summary {
  position: relative; display: flex; align-items: baseline; gap: 10px;
  min-height: 52px; padding: 14px 40px 14px 0;
}
.module > summary::after { right: 6px; }
.module-title { font-weight: 600; }
.module[open] { padding-bottom: 8px; }

/* Fields */

.field { margin: 14px 0; }
.field > label { display: block; font-weight: 500; margin-bottom: 6px; }
.field .hint { margin-top: -2px; }
.hint { color: var(--muted); font-size: 15px; margin: 4px 0 10px; }

.input, textarea {
  display: block; width: 100%;
  font-size: 17px; line-height: 1.45;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  -webkit-appearance: none; appearance: none;
}
.select { position: relative; }
.select select.input { padding-right: 44px; }
.select::after {
  content: ""; position: absolute; right: 20px; top: 50%; pointer-events: none;
  width: 8px; height: 8px; margin-top: -6px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
}
.card > .stack > .field:first-child, .card > form > .field:first-child { margin-top: 0; }
textarea { resize: none; min-height: 96px; overflow: hidden; }
.small-input { font-size: 15px; padding: 9px 12px; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: 0.8; }

label.check {
  display: flex; align-items: center; gap: 12px;
  min-height: 48px; cursor: pointer; flex: 1;
}
label.check input[type=checkbox] {
  width: 24px; height: 24px; flex-shrink: 0; margin: 0;
  accent-color: var(--accent);
}

/* Buttons */

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 20px;
  border: none; border-radius: 12px;
  background: var(--accent); color: var(--accent-text);
  font-weight: 600; text-decoration: none;
}
.button.secondary { background: var(--accent-soft); color: var(--text); }
.button.danger { background: var(--danger); color: #fff; }
.button:disabled { opacity: 0.45; cursor: default; }
.small-button { min-height: 42px; padding: 0 14px; font-size: 15px; }
.button .icon { width: 20px; height: 20px; }

.icon-button {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; flex-shrink: 0;
  border: none; border-radius: 12px; background: transparent; color: var(--text);
}
.icon-button:disabled { opacity: 0.25; cursor: default; }

.link-button {
  border: none; background: none; padding: 10px 0; min-height: 44px;
  color: var(--accent); font-size: 15px; font-weight: 500;
}

.icon {
  width: 24px; height: 24px;
  fill: none; stroke: currentColor; stroke-width: 1.8;
  stroke-linecap: round; stroke-linejoin: round;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: none; border-radius: 14px; padding: 10px 12px;
  background: var(--accent-soft); color: var(--text);
  font-size: 15px; text-align: left;
}

/* 0–5 slider */

.rating { padding: 10px 0 6px; }
.rating + .rating, .urge + .urge { border-top: 1px solid var(--border); }
.rating-head { display: flex; align-items: center; gap: 10px; min-height: 32px; }
.rating-label { flex: 1; font-weight: 500; }
.rating-value { color: var(--accent); font-weight: 650; font-variant-numeric: tabular-nums; }
.is-unset .rating-value { color: var(--muted); font-weight: 400; font-size: 15px; }
.rating-clear { min-height: 32px; padding: 0 4px; }

.slider {
  --pos: 0;
  position: relative; height: 48px;
  touch-action: pan-y; cursor: pointer;
  -webkit-user-select: none; user-select: none;
  border-radius: 12px;
}
.slider-track {
  position: absolute; left: var(--pad); right: var(--pad); top: 50%;
  height: 6px; margin-top: -3px; border-radius: 3px;
  background: var(--surface-2);
}
.slider-fill {
  height: 100%; width: calc(var(--pos) * 100%);
  border-radius: 3px; background: var(--accent);
}
.slider-thumb {
  position: absolute; top: 50%;
  left: calc(var(--pad) + (100% - 2 * var(--pad)) * var(--pos));
  width: 30px; height: 30px; margin: -15px 0 0 -15px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--accent);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
}
.is-unset .slider-thumb, .is-unset .slider-fill { visibility: hidden; }
.slider-ticks {
  display: flex; justify-content: space-between;
  padding: 0 calc(var(--pad) - 12px); margin-top: -6px;
  font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums;
}
.slider-ticks span { width: 24px; text-align: center; }

/* Urges */

.urge { padding-bottom: 8px; }
.urge .rating { border: none; }
.yesno { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 6px; }
.yesno-label { color: var(--muted); font-size: 15px; }
.seg-group { display: inline-flex; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.seg {
  min-width: 68px; min-height: 42px; border: none; background: transparent;
  font-size: 15px; font-weight: 500;
}
.seg + .seg { border-left: 1px solid var(--border); }
.seg[aria-pressed=true] { background: var(--accent); color: var(--accent-text); }

/* Skills */

.skill + .skill { border-top: 1px solid var(--border); }
.skill-row { display: flex; align-items: center; gap: 4px; }
.skill-desc { color: var(--muted); font-size: 15px; margin: -4px 44px 10px 36px; }
.skill-help { margin-left: 36px; }
.skill-help .rating { padding-top: 0; }
.skill-help .rating-label { font-size: 15px; font-weight: 400; color: var(--muted); }

/* Toggleable hints */

.toggle-hint { margin-bottom: 8px; }
.hint-body { color: var(--muted); font-size: 15px; padding: 4px 0 8px; }
.hint-body p { margin-bottom: 6px; }

/* Tab bar */

.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: flex; justify-content: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 0 env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.tab {
  flex: 1; max-width: 200px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  min-height: 60px; border: none; background: none;
  color: var(--muted); font-size: 12px; font-weight: 500;
}
.tab[aria-current=page] { color: var(--accent); }

/* Settings */

.settings-group > h2 { margin-bottom: 12px; }
.list-item { padding: 2px 0; }
.list-item .small-input { margin: 6px 52px 8px 0; width: calc(100% - 52px); }
.add-form { margin-top: 16px; padding-top: 12px; border-top: 1px dashed var(--border); }
.removed-row { justify-content: space-between; min-height: 44px; }
.contact { padding: 10px 0; display: flex; flex-direction: column; gap: 8px; }
.contact + .contact { border-top: 1px solid var(--border); }
.contact p { margin: 0; }
.contact-name { font-weight: 500; }

/* Toast */

#toast {
  position: fixed; z-index: 20;
  left: 16px; right: 16px; bottom: calc(env(safe-area-inset-bottom) + 76px);
  max-width: 480px; margin: 0 auto;
  padding: 12px 16px; border-radius: 12px;
  background: var(--text); color: var(--bg); font-size: 15px;
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
#toast.show { opacity: 1; transform: none; }

.noscript { padding: 24px; }

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