/* Moon Phase Tonight — the real moon disc, drawn, with a day scrubber.
 * One Page Toys tool family, self-contained, theme-aware (light/dark).
 * The sky panel stays night-dark in both themes: a moon on a white card
 * reads as a logo, not a moon. */

@import url("https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800;900&family=Inter:wght@400;500;600;700&display=swap");

:root{
  --font-display: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ink: #1a2230;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-2: #eef2f8;
  --muted: #6a7688;
  --line: #e3e9f1;
  --line-strong: #cdd6e3;
  --accent: #6f7fd8;
  --accent-hover: #5766c4;
  --accent-soft: rgba(111, 127, 216, 0.14);
  --radius: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow: 0 2px 8px rgba(20, 32, 52, 0.06);
  --shadow-md: 0 8px 22px rgba(20, 32, 52, 0.10);
  --shadow-lg: 0 16px 40px rgba(20, 32, 52, 0.12);
  --glass: rgba(255, 255, 255, 0.74);
  /* the night panel — identical in both themes */
  --night-1: #0a0d1a;
  --night-2: #141a30;
  --night-line: rgba(150, 170, 230, 0.16);
}
:root[data-theme="dark"]{
  --ink: #e7edf6;
  --bg: #0e1420;
  --surface: #172030;
  --surface-2: #1f2a3c;
  --muted: #93a1b6;
  --line: #232f42;
  --line-strong: #35435c;
  --accent: #9aa8f0;
  --accent-hover: #b4bef7;
  --accent-soft: rgba(154, 168, 240, 0.18);
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 10px 30px -6px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 18px 48px -10px rgba(0, 0, 0, 0.6);
  --glass: rgba(23, 32, 48, 0.62);
}

*, *::before, *::after{ box-sizing: border-box; }
html, body{ height: 100%; -webkit-tap-highlight-color: transparent; }
body{
  margin: 0; min-height: 100%;
  display: flex; flex-direction: column;
  font-family: var(--font-sans); color: var(--ink);
  background: radial-gradient(64% 46% at 50% 0%, var(--accent-soft), transparent 70%), var(--bg);
  overflow-x: hidden; -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

/* ---------- Top bar ---------- */
.topbar{
  position: relative; z-index: 3;
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; flex-wrap: wrap;
  padding: 14px clamp(16px, 4vw, 30px);
  padding-top: max(14px, env(safe-area-inset-top));
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.brand{ display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 800; font-size: 0.86rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink); text-decoration: none; }
.brand__mark{ width: 1.1em; height: 1.1em; border: 1.5px solid var(--ink); border-radius: 6px; background: linear-gradient(90deg, var(--ink) 0 50%, var(--surface) 50% 100%); }
.topbar__right{ display: inline-flex; align-items: center; gap: 12px; }
.topbar__tag{ font-family: var(--font-display); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.iconbtn{ appearance: none; display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; font-size: 1rem; line-height: 1; border: 1.5px solid var(--line-strong); border-radius: var(--radius-pill); background: var(--surface); color: var(--ink); cursor: pointer; box-shadow: var(--shadow); transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease; }
.iconbtn:hover{ transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--ink); }
.iconbtn:focus-visible{ outline: none; box-shadow: 0 0 0 2px var(--bg), 0 0 0 5px var(--accent-soft); }
.theme-toggle__sun, .theme-toggle__moon, .theme-toggle__auto{ display: none; }
:root[data-theme-mode="system"] .theme-toggle__auto{ display: inline; }
:root[data-theme-mode="light"] .theme-toggle__sun{ display: inline; }
:root[data-theme-mode="dark"] .theme-toggle__moon{ display: inline; }

/* ---------- Stage ---------- */
.stage{
  position: relative; z-index: 2; flex: 1 0 auto;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 22px;
  padding: clamp(20px, 4vw, 40px) 18px clamp(48px, 6vw, 72px);
  padding-bottom: max(clamp(48px, 6vw, 72px), env(safe-area-inset-bottom));
}
.mp{ width: 100%; max-width: 560px; text-align: center; }

.eyebrow{ margin: 0 0 4px; font-family: var(--font-display); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.headline{
  margin: 0 0 22px; font-family: var(--font-display); font-weight: 900;
  font-size: clamp(1.6rem, 6.4vw, 2.6rem); line-height: 1.05; letter-spacing: -0.02em; color: var(--ink);
}

/* ---------- Sky panel ---------- */
.sky{
  position: relative; width: 100%;
  padding: clamp(20px, 5vw, 34px) 18px clamp(14px, 3vw, 20px);
  border: 1px solid var(--night-line); border-radius: var(--radius);
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(120, 145, 220, 0.16), transparent 60%),
    linear-gradient(170deg, var(--night-2), var(--night-1) 70%);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  touch-action: pan-y;
  cursor: ew-resize;
  user-select: none; -webkit-user-select: none;
}
/* a handful of fixed stars — deterministic, so the sky never flickers between
   renders and the card capture is repeatable */
.sky::before{
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 18%, rgba(255,255,255,0.55), transparent),
    radial-gradient(1.2px 1.2px at 26% 62%, rgba(255,255,255,0.38), transparent),
    radial-gradient(1.8px 1.8px at 78% 22%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.2px 1.2px at 88% 68%, rgba(255,255,255,0.34), transparent),
    radial-gradient(1.4px 1.4px at 44% 12%, rgba(255,255,255,0.42), transparent),
    radial-gradient(1.1px 1.1px at 62% 82%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1.5px 1.5px at 8%  76%, rgba(255,255,255,0.36), transparent),
    radial-gradient(1.2px 1.2px at 94% 44%, rgba(255,255,255,0.32), transparent);
}
.sky__moon{
  position: relative; z-index: 1;
  display: block; margin: 0 auto;
  width: min(64vw, 268px); height: min(64vw, 268px);
  -webkit-touch-callout: none;
}
.sky__hint{
  margin: 12px 0 0; font-size: 0.7rem; letter-spacing: 0.05em;
  color: rgba(190, 202, 235, 0.5);
  transition: opacity 300ms ease;
}
.sky__hint.is-gone{ opacity: 0; }

/* ---------- Stats ---------- */
.stats{ margin-top: 18px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat{
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 12px 6px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--glass); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.stat__k{ font-family: var(--font-display); font-size: 0.6rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.stat__v{ font-family: var(--font-display); font-size: clamp(0.95rem, 3.6vw, 1.15rem); font-weight: 800; color: var(--ink); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ---------- Scrubber ---------- */
.scrub{ margin-top: 22px; }
.scrub__lab{
  display: block; margin-bottom: 8px;
  font-family: var(--font-display); font-size: 0.85rem; font-weight: 800; color: var(--ink);
}
#dayRange{
  appearance: none; -webkit-appearance: none;
  width: 100%; height: 26px; background: transparent; cursor: ew-resize; display: block;
}
#dayRange::-webkit-slider-runnable-track{ height: 5px; border-radius: 999px; background: linear-gradient(90deg, var(--line-strong), var(--accent), var(--line-strong)); }
#dayRange::-moz-range-track{ height: 5px; border-radius: 999px; background: linear-gradient(90deg, var(--line-strong), var(--accent), var(--line-strong)); }
#dayRange::-webkit-slider-thumb{
  -webkit-appearance: none; width: 22px; height: 22px; margin-top: -8.5px;
  border-radius: 50%; background: var(--surface); border: 2px solid var(--accent);
  box-shadow: var(--shadow-md); cursor: grab;
}
#dayRange::-moz-range-thumb{ width: 22px; height: 22px; border-radius: 50%; background: var(--surface); border: 2px solid var(--accent); box-shadow: var(--shadow-md); cursor: grab; }
#dayRange:focus-visible{ outline: none; }
#dayRange:focus-visible::-webkit-slider-thumb{ box-shadow: 0 0 0 5px var(--accent-soft), var(--shadow-md); }
#dayRange:focus-visible::-moz-range-thumb{ box-shadow: 0 0 0 5px var(--accent-soft), var(--shadow-md); }
.scrub__ends{ display: flex; justify-content: space-between; font-size: 0.62rem; letter-spacing: 0.06em; color: var(--muted); }

/* ---------- Next-phase cards ---------- */
.next{ margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.next__card{
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 14px 10px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--surface); box-shadow: var(--shadow);
}
.next__k{ font-family: var(--font-display); font-size: 0.6rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.next__v{ font-family: var(--font-display); font-size: clamp(1rem, 4vw, 1.3rem); font-weight: 900; color: var(--accent); font-variant-numeric: tabular-nums; }
.next__sub{ font-size: 0.68rem; color: var(--muted); }

/* ---------- Controls ---------- */
.controls{ margin-top: 22px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; align-items: center; }
.btn{
  appearance: none; font-family: var(--font-display); font-size: 0.9rem; font-weight: 700;
  padding: 12px 22px; border-radius: var(--radius-pill);
  border: 1.5px solid var(--line-strong); background: var(--surface); color: var(--muted);
  cursor: pointer; box-shadow: var(--shadow);
  transition: transform 160ms ease, box-shadow 160ms ease, color 160ms ease, border-color 160ms ease, background 160ms ease;
}
.btn--primary{ background: var(--ink); border-color: var(--ink); color: var(--bg); }
.btn--primary:hover{ transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:focus-visible{ outline: none; box-shadow: 0 0 0 2px var(--bg), 0 0 0 5px var(--accent-soft), var(--shadow); }
.btn[hidden]{ display: none; }

.datepick{
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border: 1.5px solid var(--line-strong); border-radius: var(--radius-pill);
  background: var(--surface); box-shadow: var(--shadow); cursor: pointer;
}
.datepick__k{ font-family: var(--font-display); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.datepick input{
  border: 0; background: transparent; color: var(--ink);
  font-family: var(--font-display); font-size: 0.86rem; font-weight: 700;
  padding: 4px 0; outline: none; cursor: pointer; min-width: 0;
}
.datepick:focus-within{ border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.backlink{ font-family: var(--font-display); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); text-decoration: none; border-bottom: 1px solid transparent; transition: color 140ms ease, border-color 140ms ease; }
.backlink:hover{ color: var(--ink); border-bottom-color: var(--accent); }

@media (max-width: 420px){
  .stats{ grid-template-columns: 1fr 1fr; }
  .stats .stat:last-child{ grid-column: span 2; }
  .datepick{ width: 100%; justify-content: space-between; }
}
@media (prefers-reduced-motion: reduce){
  .btn, .iconbtn, .sky__hint{ transition: none; }
}