/* Slow Tide — shared styles */
/* Fonts are served from this site (no Google request; they also work offline). */
@font-face { font-family: "Spectral"; font-style: normal; font-weight: 300; font-display: swap; src: url("fonts/spectral-latin-300-normal.woff2") format("woff2"); }
@font-face { font-family: "Spectral"; font-style: italic; font-weight: 300; font-display: swap; src: url("fonts/spectral-latin-300-italic.woff2") format("woff2"); }
@font-face { font-family: "Spectral"; font-style: normal; font-weight: 400; font-display: swap; src: url("fonts/spectral-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Spectral"; font-style: italic; font-weight: 400; font-display: swap; src: url("fonts/spectral-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "Atkinson Hyperlegible"; font-style: normal; font-weight: 400; font-display: swap; src: url("fonts/atkinson-hyperlegible-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Atkinson Hyperlegible"; font-style: italic; font-weight: 400; font-display: swap; src: url("fonts/atkinson-hyperlegible-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "Atkinson Hyperlegible"; font-style: normal; font-weight: 700; font-display: swap; src: url("fonts/atkinson-hyperlegible-latin-700-normal.woff2") format("woff2"); }

:root {
  color-scheme: dark;
  --ground: #0D1318;
  --panel: #131B21;
  --line: #25323A;
  --ink: #DCE4E3;
  --muted: #8B9CA2;
  --accent: #8CC7BE;
  --display: "Spectral", "Iowan Old Style", Georgia, serif;
  --body: "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { background: var(--ground); color: var(--ink); margin: 0; }
body { font-family: var(--body); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
img { max-width: 100%; }
[hidden] { display: none !important; }

.wrap { max-width: 1080px; margin: 0 auto; padding-inline: 20px; }

/* ---------- site header ---------- */
.site-head { border-bottom: 1px solid var(--line); }
.site-head .wrap { display: grid; grid-template-columns: auto 1fr auto; grid-template-areas: "brand nav chip"; align-items: center; gap: 10px 16px; padding-block: 12px; }
.brand { grid-area: brand; }
.site-nav { grid-area: nav; justify-self: end; }
.site-head .install-btn { grid-area: chip; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--display); font-weight: 300; font-size: 24px; }
.brand em { color: var(--accent); }
.brand svg { width: 28px; height: 28px; flex: none; }
.site-nav { display: flex; gap: 2px; flex-wrap: wrap; }
.site-nav a { color: var(--muted); text-decoration: none; padding: 6px 12px; border-radius: 999px; font-size: 15px; }
.site-nav a:hover { color: var(--ink); background: var(--panel); }
.site-nav a[aria-current="page"] { color: var(--ink); background: var(--panel); box-shadow: inset 0 0 0 1px var(--line); }

/* ---------- site footer ---------- */
.site-foot { border-top: 1px solid var(--line); margin-top: 56px; color: var(--muted); font-size: 14px; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; padding-block: 24px 32px; }
.site-foot p { margin: 0; max-width: 60ch; }

/* ---------- tool page ---------- */
.tool { display: grid; gap: 20px; padding-block: 24px 0; }
.intro { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 20px; }
.intro h1 { font-family: var(--display); font-weight: 300; font-size: clamp(26px, 4vw, 34px); margin: 0; text-wrap: balance; }
.intro p { color: var(--muted); margin: 0; font-size: 15px; }

.stage { position: relative; height: min(66vh, 600px); min-height: 340px; border-radius: 18px; overflow: hidden; background: #0A0F13; border: 1px solid var(--line); }
.stage:fullscreen { border-radius: 0; border: 0; height: 100%; }
.stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.cue { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; pointer-events: none; gap: 2px; }
.cue .word { font-family: var(--display); font-weight: 300; font-style: italic; font-size: clamp(24px, 4.5vw, 36px); color: var(--ink); text-shadow: 0 0 24px rgba(0,0,0,.7); }
.cue .count { font-variant-numeric: tabular-nums; color: var(--ink); opacity: .7; font-size: 15px; letter-spacing: 0.12em; }
.hud { position: absolute; left: 14px; right: 14px; bottom: 12px; display: flex; justify-content: space-between; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.hud .left { display: flex; gap: 4px 14px; flex-wrap: wrap; }
.iconbtn { background: rgba(13,19,24,.6); border: 1px solid var(--line); color: var(--ink); border-radius: 999px; padding: 6px 12px; font: inherit; cursor: pointer; white-space: nowrap; }

.controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 14px; }
.group { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; display: grid; gap: 12px; align-content: start; }
.group h2 { margin: 0; font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); font-weight: 700; display: flex; justify-content: space-between; gap: 8px; }
.group h2 span { text-transform: none; letter-spacing: 0; font-weight: 400; color: var(--accent); font-variant-numeric: tabular-nums; }

.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg button { flex: 1 1 auto; background: transparent; border: 1px solid var(--line); color: var(--ink); border-radius: 10px; padding: 8px 10px; font: inherit; font-size: 14px; cursor: pointer; text-align: left; line-height: 1.25; }
.seg button small { display: block; color: var(--muted); font-size: 12px; }
.seg button[aria-pressed="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.seg button:hover { border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.sliders { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.sliders label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
.sliders output { color: var(--ink); font-variant-numeric: tabular-nums; font-size: 14px; }
input[type=range] { width: 100%; accent-color: var(--accent); }
.row { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
.row .lab { display: flex; justify-content: space-between; }
.row output { color: var(--ink); font-variant-numeric: tabular-nums; }

.swatch { width: 12px; height: 12px; border-radius: 50%; display: inline-block; margin-right: 6px; vertical-align: -1px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.primary { background: var(--accent); color: #0D1318; border: 0; border-radius: 10px; padding: 10px 16px; font: inherit; font-weight: 700; cursor: pointer; }
.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; font: inherit; cursor: pointer; }
.keys { font-size: 13px; color: var(--muted); margin: 0; }
kbd { font-family: var(--body); font-size: 12px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 0 5px; color: var(--ink); }

.notes { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; padding-top: 8px; border-top: 1px solid var(--line); }
.notes h3 { font-family: var(--display); font-weight: 400; font-size: 20px; margin: 12px 0 4px; text-wrap: balance; }
.notes p { margin: 0; color: var(--muted); max-width: 60ch; }

/* ---------- reading pages ---------- */
.article { max-width: 720px; margin: 0 auto; padding-block: 40px 0; }
.article .eyebrow { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); font-weight: 700; margin: 0 0 8px; }
.article h1 { font-family: var(--display); font-weight: 300; font-size: clamp(32px, 5vw, 44px); line-height: 1.15; margin: 0 0 16px; text-wrap: balance; }
.article .lede { font-size: 19px; color: var(--muted); margin: 0 0 32px; }
.article h2 { font-family: var(--display); font-weight: 400; font-size: 26px; margin: 44px 0 10px; text-wrap: balance; }
.article h3 { font-size: 17px; margin: 28px 0 6px; }
.article p, .article li { max-width: 65ch; }
.article ul, .article ol { padding-left: 22px; }
.article li { margin-bottom: 6px; }
.callout { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px 20px; margin: 24px 0; }
.callout p { margin: 0; }
.callout strong { color: var(--accent); }
.table-scroll { overflow-x: auto; margin: 20px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; min-width: 520px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 700; }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.refs { font-size: 14px; color: var(--muted); }
.refs li { margin-bottom: 10px; }
.cta { display: inline-block; margin-top: 12px; background: var(--accent); color: #0D1318; text-decoration: none; font-weight: 700; padding: 10px 18px; border-radius: 10px; }
.cta:hover { text-decoration: none; filter: brightness(1.08); }

@media (max-width: 520px) {
  .sliders { grid-template-columns: repeat(2, 1fr); }
  .stage { height: 58vh; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}

/* ---------- install app (top right) ---------- */
.foot-install { display: flex; align-items: center; gap: 12px; }
.install-btn { display: inline-flex; align-items: center; gap: 7px; height: 32px; padding: 0 13px 0 7px; border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 12%, var(--panel)), var(--panel));
  color: var(--ink); font: 600 13px/1 var(--body); cursor: pointer; white-space: nowrap; }
.install-btn img { width: 18px; height: 18px; border-radius: 5px; display: block; }
.install-btn:hover { border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); }
.ios-hint { margin: 0; font-size: 14px; color: var(--muted); }
@media (max-width: 640px) {
  .site-head .wrap { grid-template-columns: 1fr auto; grid-template-areas: "brand chip" "nav nav"; row-gap: 8px; }
  .site-nav { justify-self: start; margin-left: -10px; }
  .site-nav a { font-size: 14px; padding: 6px 10px; }
  .brand { font-size: 22px; }
}

/* ---------- toggles ---------- */
.toggles { display: grid; gap: 10px; padding-top: 2px; }
.switch { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start; cursor: pointer; font-size: 14px; color: var(--ink); }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch .track { width: 34px; height: 20px; border-radius: 999px; background: var(--line); position: relative; margin-top: 1px; transition: background .2s; }
.switch .track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: var(--muted); transition: transform .2s, background .2s; }
.switch input:checked + .track { background: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.switch input:checked + .track::after { transform: translateX(14px); background: var(--ink); }
.switch input:focus-visible + .track { outline: 2px solid var(--accent); outline-offset: 2px; }
.switch .txt small { display: block; color: var(--muted); font-size: 12.5px; line-height: 1.4; margin-top: 2px; }

/* ---------- eyes-closed overlay ---------- */
.eyes { position: fixed; inset: 0; z-index: 1000; background: #000; display: grid; place-content: center; text-align: center; gap: 10px; padding: 24px; cursor: pointer; }
.eyes p { margin: 0; transition: opacity 2.5s; }
.eyes-phase { font-family: var(--display); font-style: italic; font-weight: 300; font-size: 26px; color: #2C3538; }
.eyes-msg { color: #7D8B90; font-size: 17px; max-width: 32ch; margin-inline: auto !important; }
.eyes-sub { color: #4B5659; font-size: 13px; }
.eyes.quiet .eyes-msg, .eyes.quiet .eyes-sub { opacity: 0; }
.eyes:fullscreen { background: #000; }

/* ---------- mood dialog ---------- */
.mood-dlg { border: 1px solid var(--line); border-radius: 18px; background: var(--panel); color: var(--ink); padding: 0; width: min(440px, calc(100% - 32px)); }
.mood-dlg::backdrop { background: rgba(4, 7, 9, .75); }
.mood-box { padding: 24px; display: grid; gap: 14px; }
.mood-box h2 { font-family: var(--display); font-weight: 400; font-size: 24px; margin: 0; }
.mood-note { margin: -6px 0 0; color: var(--muted); font-size: 14px; }
.mood-note:empty { display: none; }
.mood-scale { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.mood-scale button { display: grid; justify-items: center; gap: 8px; padding: 12px 4px 10px; border-radius: 12px; border: 1px solid var(--line); background: transparent; color: var(--ink); font: 600 12.5px/1.2 var(--body); cursor: pointer; }
.mood-scale button:hover { border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.mood-scale i { width: 22px; height: 22px; border-radius: 50%; background: var(--m); box-shadow: 0 0 12px color-mix(in srgb, var(--m) 45%, transparent); }
.mood-skip { justify-self: center; background: none; border: 0; color: var(--muted); font: inherit; font-size: 14px; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; padding: 4px 8px; }
.mood-result { display: grid; gap: 12px; }
.mood-change { margin: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; font-size: 18px; }
.mood-change .arrow { color: var(--muted); }
.mood-change .after { color: var(--accent); font-weight: 700; }
.mood-change b { margin-left: auto; font-variant-numeric: tabular-nums; font-size: 22px; color: var(--muted); }
.mood-change b.up { color: #9FD8B0; }
.mood-change b.down { color: #D9A48F; }
.mood-msg { margin: 0; color: var(--muted); font-size: 15px; }
@media (max-width: 420px) { .mood-scale button { font-size: 11px; padding-inline: 2px; } }

/* ---------- progress ---------- */
.progress { display: grid; gap: 14px; }
.progress-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 16px; }
.progress-head h2 { font-family: var(--display); font-weight: 400; font-size: 24px; margin: 0; }
.progress-head p, .prog-empty { margin: 0; color: var(--muted); font-size: 14px; }
.prog-empty { background: var(--panel); border: 1px dashed var(--line); border-radius: 14px; padding: 16px; }
#progBody { display: grid; gap: 14px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; display: grid; gap: 2px; }
.stat .k { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; }
.stat .v { font-family: var(--display); font-size: 30px; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat .n { font-size: 12.5px; color: var(--muted); }
.chart-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; display: grid; gap: 8px; }
.chart-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 6px 16px; }
.chart-head h3 { margin: 0; font-size: 14px; font-weight: 700; }
.legend { display: flex; gap: 14px; font-size: 13px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.lg-before { border: 2px solid var(--muted); }
.lg-after { background: var(--accent); }
.chart-scroll { overflow-x: auto; }
.chart-scroll svg { display: block; width: 100%; height: auto; }
.chart-scroll .grid { stroke: var(--line); stroke-width: 1; }
.chart-scroll .axis { fill: var(--muted); font: 12px var(--body); }
.chart-scroll .stem { stroke-width: 3; stroke-linecap: round; stroke: var(--muted); opacity: .5; }
.chart-scroll .stem.up { stroke: var(--accent); opacity: .55; }
.chart-scroll .stem.down { stroke: #D9A48F; opacity: .6; }
.chart-scroll .before { fill: var(--panel); stroke: var(--muted); stroke-width: 2; }
.chart-scroll .after { fill: var(--accent); }
.chart-scroll .after.down { fill: #D9A48F; }
.chart-empty { margin: 8px 0; color: var(--muted); font-size: 14px; }
.clear-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.ghost.small { padding: 6px 12px; font-size: 13.5px; }
.ghost.danger { border-color: #7A4A3E; color: #E7B3A2; }
@media (max-width: 640px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- quick-start programs ---------- */
.programs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.programs button { display: grid; gap: 3px; text-align: left; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--line);
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 7%, var(--panel)), var(--panel)); color: var(--ink); font: inherit; cursor: pointer;
  transition: border-color .2s, transform .2s; }
.programs button:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); transform: translateY(-1px); }
.programs .pt { font-family: var(--display); font-size: 19px; line-height: 1.2; }
.programs .pm { font-size: 13px; color: var(--muted); }
.seg-sm button { flex: 1 1 0; text-align: center; padding: 7px 8px; font-size: 13.5px; }
@media (max-width: 760px) { .programs { grid-template-columns: repeat(2, 1fr); } }
@media (prefers-reduced-motion: reduce) { .programs button:hover { transform: none; } }

/* ---------- habit cards: reminder + backup ---------- */
.habit { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.habit-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; display: grid; gap: 10px; align-content: start; }
.habit-card h3 { margin: 0; font-size: 15px; font-weight: 700; }
.habit-card p { margin: 0; color: var(--muted); font-size: 14px; }
.rem-row { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); }
.rem-row input { font: inherit; color: var(--ink); background: var(--ground); border: 1px solid var(--line); border-radius: 10px; padding: 6px 10px; color-scheme: dark; }
.habit-card .habit-msg { color: var(--accent); font-size: 13.5px; }
.habit-card .habit-msg:empty { display: none; }
.habit-card .habit-msg.bad { color: #E7B3A2; }

/* ---------- copyright ---------- */
.site-foot .copy { flex-basis: 100%; max-width: none; margin: 4px 0 0; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.site-foot .copy a { color: var(--muted); text-decoration: none; }
.site-foot .copy a:hover { color: var(--ink); text-decoration: underline; }
.stats-copy { margin: 32px 0 24px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }