/* ============================================================================
   Forecast Report Card — does this site's forecast actually verify?
   Liquid-Glass full-bleed takeover for tinyblue.dev/weather.
   Self-contained, prefixed .frc-* to avoid collisions. Honors data-theme
   (light/dark) and prefers-reduced-motion.
   ============================================================================ */

:root {
  --frc-a:   #1474e6;          /* accent blue */
  --frc-a2:  #21b7d7;          /* cyan */
  --frc-good:#30a46c;          /* verified / on-target */
  --frc-warn:#c26b21;          /* decaying skill */
  --frc-bad: #d94a38;          /* coin flip */
  --frc-glass: color-mix(in oklab, var(--bg-elev, #fff) 74%, transparent);
  --frc-glass-strong: color-mix(in oklab, var(--bg-elev, #fff) 90%, transparent);
  --frc-line: color-mix(in oklab, var(--ink, #1d1d1f) 13%, transparent);
  --frc-line-soft: color-mix(in oklab, var(--ink, #1d1d1f) 7%, transparent);
  --frc-ink: var(--ink, #1d1d1f);
  --frc-mute: var(--ink-mute, #6e6e73);
  --frc-shadow: 0 30px 90px rgba(8, 14, 28, .32);
  --frc-spring: cubic-bezier(.34, 1.32, .52, 1);
}
:root[data-theme="dark"] {
  --frc-glass: color-mix(in oklab, var(--bg-elev, #0b0b0d) 62%, transparent);
  --frc-glass-strong: color-mix(in oklab, var(--bg-elev, #0b0b0d) 84%, transparent);
  --frc-line: color-mix(in oklab, var(--ink, #f5f5f7) 16%, transparent);
  --frc-line-soft: color-mix(in oklab, var(--ink, #f5f5f7) 8%, transparent);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --frc-glass: color-mix(in oklab, var(--bg-elev, #0b0b0d) 62%, transparent);
    --frc-glass-strong: color-mix(in oklab, var(--bg-elev, #0b0b0d) 84%, transparent);
    --frc-line: color-mix(in oklab, var(--ink, #f5f5f7) 16%, transparent);
    --frc-line-soft: color-mix(in oklab, var(--ink, #f5f5f7) 8%, transparent);
  }
}

/* ---- Launch button (lives in the status row, next to Time Machine) ---- */
.frc-launch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--frc-a) 40%, transparent);
  background: linear-gradient(120deg,
    color-mix(in oklab, var(--frc-a) 20%, transparent),
    color-mix(in oklab, var(--frc-good) 18%, transparent));
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  color: var(--frc-ink);
  font: 600 13px/1 system-ui, -apple-system, "SF Pro Text", sans-serif;
  letter-spacing: .01em;
  cursor: pointer;
  transition: transform .25s var(--frc-spring), box-shadow .25s ease, border-color .25s ease;
  box-shadow: 0 4px 16px rgba(20, 116, 230, .14);
}
.frc-launch:hover {
  transform: translateY(-1px) scale(1.03);
  border-color: color-mix(in oklab, var(--frc-a) 64%, transparent);
  box-shadow: 0 8px 26px rgba(20, 116, 230, .26);
}
.frc-launch:focus-visible { outline: 2px solid var(--frc-a); outline-offset: 3px; }
.frc-launch .frc-launch-mark {
  width: 9px; height: 9px; border-radius: 3px;
  background: linear-gradient(135deg, var(--frc-good), var(--frc-a2));
  box-shadow: 0 0 10px color-mix(in oklab, var(--frc-good) 60%, transparent);
  animation: frc-pulse 2.8s ease-in-out infinite;
}
@keyframes frc-pulse { 0%,100% { opacity: .6; transform: scale(.86) rotate(0deg);} 50% { opacity: 1; transform: scale(1.18) rotate(8deg);} }

/* ---- Full-bleed takeover ---- */
.frc {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: none;
  flex-direction: column;
  background: rgba(6, 9, 18, .56);
  backdrop-filter: blur(22px) saturate(128%);
  -webkit-backdrop-filter: blur(22px) saturate(128%);
  opacity: 0;
  transition: opacity .42s ease;
  color: var(--frc-ink);
  overscroll-behavior: contain;
}
:root[data-theme="light"] .frc { background: rgba(232, 238, 247, .58); }
.frc.is-open { display: flex; opacity: 1; }

.frc-aura {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(120% 80% at 18% -8%, color-mix(in oklab, var(--frc-a) 16%, transparent), transparent 60%),
    radial-gradient(120% 80% at 86% 112%, color-mix(in oklab, var(--frc-good) 16%, transparent), transparent 60%);
  opacity: .9;
}

/* ---- Header ---- */
.frc-head {
  position: relative; z-index: 3;
  display: flex; align-items: center; gap: 16px;
  padding: clamp(14px, 2.2vw, 22px) clamp(16px, 3vw, 34px);
  border-bottom: 1px solid var(--frc-line);
}
.frc-title { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.frc-kicker {
  display: inline-flex; align-items: center; gap: 7px;
  font: 700 11px/1 system-ui, sans-serif; letter-spacing: .16em; text-transform: uppercase;
  color: var(--frc-a2);
}
.frc-kicker::before {
  content: ""; width: 7px; height: 7px; border-radius: 2px;
  background: linear-gradient(135deg, var(--frc-good), var(--frc-a2));
  box-shadow: 0 0 8px color-mix(in oklab, var(--frc-good) 60%, transparent);
}
.frc-title h2 {
  margin: 0; font: 700 clamp(18px, 2.6vw, 27px)/1.1 system-ui, -apple-system, sans-serif;
  letter-spacing: -.015em;
}
.frc-sub { font: 500 12px/1.35 system-ui, sans-serif; color: var(--frc-mute); }
.frc-head-spacer { flex: 1; }
.frc-close {
  flex: none;
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--frc-line);
  background: var(--frc-glass);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  color: var(--frc-ink); cursor: pointer; font-size: 19px; line-height: 1;
  display: grid; place-items: center;
  transition: transform .2s var(--frc-spring), background .2s ease, border-color .2s ease;
}
.frc-close:hover { transform: rotate(90deg) scale(1.06); border-color: color-mix(in oklab, var(--frc-bad) 50%, transparent); }
.frc-close:focus-visible { outline: 2px solid var(--frc-a); outline-offset: 2px; }

/* ---- Scrolling stage ---- */
.frc-stage {
  position: relative; z-index: 2;
  flex: 1; overflow-y: auto; overflow-x: hidden;
  padding: clamp(16px, 2.6vw, 32px) clamp(14px, 3vw, 34px) 64px;
  display: flex; flex-direction: column; gap: clamp(16px, 2.4vw, 26px);
  align-items: center;
}
.frc-wrap { width: min(1080px, 100%); display: flex; flex-direction: column; gap: clamp(16px, 2.4vw, 26px); }

/* ---- Glass card primitive ---- */
.frc-card {
  position: relative;
  border-radius: 22px;
  border: 1px solid var(--frc-line);
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--bg-elev, #fff) 64%, transparent), color-mix(in oklab, var(--bg-elev, #fff) 30%, transparent));
  backdrop-filter: blur(26px) saturate(170%);
  -webkit-backdrop-filter: blur(26px) saturate(170%);
  box-shadow: var(--frc-shadow);
  padding: clamp(16px, 2.4vw, 26px);
  overflow: hidden;
}
.frc-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in oklab, #fff 60%, transparent), transparent);
  opacity: .5; pointer-events: none;
}
.frc-card h3 {
  margin: 0 0 4px; font: 700 15px/1.2 system-ui, sans-serif; letter-spacing: -.01em;
}
.frc-card-note { margin: 0 0 16px; font: 500 12.5px/1.45 system-ui, sans-serif; color: var(--frc-mute); }

/* ---- Headline grade tiles ---- */
.frc-grades { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(10px, 1.6vw, 18px); }
@media (max-width: 640px) { .frc-grades { grid-template-columns: 1fr; } }
.frc-grade {
  position: relative; border-radius: 18px; padding: 18px 18px 16px;
  border: 1px solid var(--frc-line);
  background: var(--frc-glass);
  display: flex; flex-direction: column; gap: 2px;
  min-height: 132px; overflow: hidden;
  transform-style: preserve-3d;
}
.frc-grade-label { font: 600 11px/1 system-ui, sans-serif; letter-spacing: .04em; text-transform: uppercase; color: var(--frc-mute); }
.frc-grade-letter {
  font: 800 clamp(44px, 7vw, 64px)/1 system-ui, -apple-system, sans-serif;
  letter-spacing: -.04em; margin: 6px 0 2px;
  background-clip: text; -webkit-background-clip: text; color: transparent;
  -webkit-text-fill-color: transparent;
}
.frc-grade[data-tier="A"] .frc-grade-letter { background-image: linear-gradient(135deg, var(--frc-good), var(--frc-a2)); }
.frc-grade[data-tier="B"] .frc-grade-letter { background-image: linear-gradient(135deg, var(--frc-a), var(--frc-a2)); }
.frc-grade[data-tier="C"] .frc-grade-letter { background-image: linear-gradient(135deg, var(--frc-warn), #f5b84b); }
.frc-grade[data-tier="D"] .frc-grade-letter,
.frc-grade[data-tier="F"] .frc-grade-letter { background-image: linear-gradient(135deg, var(--frc-bad), var(--frc-warn)); }
.frc-grade-val { font: 600 14px/1.2 ui-monospace, "SF Mono", Menlo, monospace; color: var(--frc-ink); }
.frc-grade-n { margin-top: auto; font: 500 11px/1.3 system-ui, sans-serif; color: var(--frc-mute); }
.frc-grade-ring {
  position: absolute; right: -22px; top: -22px; width: 88px; height: 88px; border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, color-mix(in oklab, var(--frc-a) 18%, transparent), transparent 70%);
  pointer-events: none;
}
/* flip-reveal on scroll-in */
.frc-grade { opacity: 0; transform: perspective(900px) rotateX(-16deg) translateY(14px); transition: opacity .6s ease, transform .7s var(--frc-spring); }
.frc-grade.is-in { opacity: 1; transform: perspective(900px) rotateX(0deg) translateY(0); }

/* ---- Headline verdict line ---- */
.frc-verdict {
  margin: 18px 0 0; padding: 14px 16px; border-radius: 14px;
  border: 1px solid var(--frc-line-soft);
  background: color-mix(in oklab, var(--bg-elev, #fff) 40%, transparent);
  font: 500 13.5px/1.5 system-ui, sans-serif; color: var(--frc-ink);
}
.frc-verdict strong { color: var(--frc-a); font-weight: 700; }
.frc-verdict .frc-warnword { color: var(--frc-bad); font-weight: 700; }

/* ---- Metric toggle chips ---- */
.frc-chips { display: inline-flex; gap: 6px; padding: 4px; border-radius: 999px;
  background: color-mix(in oklab, var(--bg-elev, #fff) 40%, transparent);
  border: 1px solid var(--frc-line-soft); }
.frc-chip {
  border: none; background: transparent; cursor: pointer;
  padding: 7px 15px; border-radius: 999px;
  font: 600 12.5px/1 system-ui, sans-serif; color: var(--frc-mute);
  transition: background .2s ease, color .2s ease, transform .2s var(--frc-spring);
}
.frc-chip[aria-selected="true"] {
  background: linear-gradient(120deg, var(--frc-a), var(--frc-a2));
  color: #fff; box-shadow: 0 4px 14px rgba(20,116,230,.28);
}
.frc-chip:focus-visible { outline: 2px solid var(--frc-a); outline-offset: 2px; }

/* ---- Chart wrappers (canvas) ---- */
.frc-canvas-wrap { position: relative; width: 100%; }
.frc-canvas-wrap canvas { width: 100%; display: block; border-radius: 12px; }
.frc-decay-wrap { height: clamp(220px, 34vw, 300px); }
.frc-cal-wrap   { height: clamp(280px, 42vw, 380px); }

.frc-head-flex { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.frc-head-flex .frc-card-titles { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.frc-head-flex h3 { margin: 0; }
.frc-head-flex .frc-card-note { margin: 0; }
.frc-head-flex .frc-spacer { flex: 1; }

/* tooltip */
.frc-tip {
  position: fixed; z-index: 9100; pointer-events: none;
  padding: 9px 12px; border-radius: 12px;
  background: var(--frc-glass-strong);
  border: 1px solid var(--frc-line);
  backdrop-filter: blur(16px) saturate(160%); -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: 0 14px 40px rgba(0,0,0,.30);
  font: 500 12px/1.4 system-ui, sans-serif; color: var(--frc-ink);
  max-width: 240px; opacity: 0; transform: translateY(4px); transition: opacity .14s ease, transform .14s ease;
}
.frc-tip.is-on { opacity: 1; transform: translateY(0); }
.frc-tip b { font-weight: 700; }
.frc-tip .frc-tip-k { color: var(--frc-mute); }

/* ---- Rolling strip ---- */
.frc-roll { display: flex; align-items: flex-end; gap: 4px; height: 120px; padding-top: 8px; }
.frc-roll-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; min-width: 0; }
.frc-roll-bar {
  width: 100%; max-width: 22px; border-radius: 6px 6px 3px 3px;
  background: linear-gradient(180deg, var(--frc-a2), var(--frc-a));
  transition: height .6s var(--frc-spring), background .3s ease;
  align-self: center;
}
.frc-roll-bar[data-hot="1"] { background: linear-gradient(180deg, #f5b84b, var(--frc-warn)); }
.frc-roll-bar[data-hot="2"] { background: linear-gradient(180deg, var(--frc-bad), var(--frc-warn)); }
.frc-roll-date { font: 500 9px/1 system-ui, sans-serif; color: var(--frc-mute); white-space: nowrap; transform: rotate(-45deg); transform-origin: center; height: 22px; }
.frc-roll-legend { margin-top: 12px; font: 500 11px/1.4 system-ui, sans-serif; color: var(--frc-mute); }

/* ---- Methodology / footnote ---- */
.frc-method { font: 500 11.5px/1.6 system-ui, sans-serif; color: var(--frc-mute); }
.frc-method b { color: var(--frc-ink); font-weight: 600; }
.frc-method code { font: 500 11px ui-monospace, "SF Mono", Menlo, monospace; padding: 1px 5px; border-radius: 5px; background: color-mix(in oklab, var(--ink, #000) 8%, transparent); }

/* ---- Loading / empty / building states ---- */
.frc-state { padding: 40px 20px; text-align: center; color: var(--frc-mute); font: 500 13.5px/1.6 system-ui, sans-serif; }
.frc-spinner {
  width: 34px; height: 34px; margin: 0 auto 16px; border-radius: 50%;
  border: 3px solid var(--frc-line); border-top-color: var(--frc-a);
  animation: frc-spin .8s linear infinite;
}
@keyframes frc-spin { to { transform: rotate(360deg); } }
.frc-building-badge {
  display: inline-block; margin-bottom: 12px; padding: 5px 12px; border-radius: 999px;
  font: 700 11px/1 system-ui, sans-serif; letter-spacing: .08em; text-transform: uppercase;
  color: var(--frc-warn); border: 1px solid color-mix(in oklab, var(--frc-warn) 40%, transparent);
  background: color-mix(in oklab, var(--frc-warn) 12%, transparent);
}

/* ---- reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .frc, .frc-grade, .frc-roll-bar, .frc-close, .frc-launch, .frc-chip, .frc-launch-mark, .frc-grade-letter, .frc-spinner {
    transition: none !important; animation: none !important;
  }
  .frc-grade { opacity: 1; transform: none; }
}