/*
 * Rewarded-unlock 7-day forecast reveal — Idea card #68
 * Ribbon (under the smart-prediction chart) + bottom-sheet/modal reveal.
 * Matches the nkd-smart-chart design language (indigo #6366f1 smart accent),
 * adds a reward-gold (#f59e0b) cue. Light/dark via prefers-color-scheme.
 * RTL-safe (logical properties), 44px touch targets, reduced-motion aware.
 */

.nkd-rw {
  --rw-indigo: #6366f1;
  --rw-indigo-soft: rgba(99, 102, 241, 0.12);
  --rw-gold: #f59e0b;
  --rw-surface: #ffffff;
  --rw-surface-2: #f8fafc;
  --rw-border: rgba(15, 23, 42, 0.08);
  --rw-text: #0f172a;
  --rw-text-dim: #64748b;
  --rw-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.08);
  --rw-radius: 16px;
  font-family: inherit;
}

/* ---------- Trigger ribbon ---------- */
.nkd-rw-ribbon {
  display: flex;
  align-items: center;
  gap: 12px;
  inline-size: 100%;
  min-block-size: 56px;
  margin-block: 10px 0;
  padding-block: 12px;
  padding-inline: 16px;
  border: 1px solid var(--rw-border);
  border-radius: var(--rw-radius);
  background:
    radial-gradient(120% 140% at 0% 0%, var(--rw-indigo-soft), transparent 60%),
    var(--rw-surface);
  color: var(--rw-text);
  text-align: start;
  cursor: pointer;
  box-shadow: var(--rw-shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  -webkit-tap-highlight-color: transparent;
}
.nkd-rw-ribbon:hover { transform: translateY(-1px); border-color: rgba(99,102,241,.35); }
.nkd-rw-ribbon:active { transform: translateY(0); }
.nkd-rw-ribbon:focus-visible { outline: 2px solid var(--rw-indigo); outline-offset: 2px; }

.nkd-rw-ribbon__icon {
  flex: 0 0 auto;
  inline-size: 38px; block-size: 38px;
  display: grid; place-items: center;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--rw-gold), #fbbf24);
  color: #422006;
  font-size: 19px; line-height: 1;
  box-shadow: 0 2px 8px rgba(245, 158, 11, .35);
}
.nkd-rw-ribbon__body { flex: 1 1 auto; min-inline-size: 0; }
.nkd-rw-ribbon__cta { font-weight: 700; font-size: 14.5px; line-height: 1.25; }
.nkd-rw-ribbon__hint { margin-block-start: 2px; font-size: 12px; color: var(--rw-text-dim); line-height: 1.3; }
.nkd-rw-ribbon__chev { flex: 0 0 auto; color: var(--rw-indigo); opacity: .7; }
.nkd-rw-ribbon[hidden] { display: none; }

.nkd-rw-ribbon__badge {
  flex: 0 0 auto;
  display: inline-flex; align-items: center; gap: 5px;
  padding-block: 4px; padding-inline: 9px;
  border-radius: 999px;
  background: var(--rw-indigo-soft); color: var(--rw-indigo);
  font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
}

/* ---------- Overlay + sheet ---------- */
.nkd-rw-overlay {
  position: fixed; inset: 0; z-index: 99990;
  display: flex; align-items: flex-end; justify-content: center;
  background: rgba(15, 23, 42, .5);
  -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px);
  opacity: 0; visibility: hidden;
  transition: opacity .22s ease, visibility .22s ease;
}
.nkd-rw-overlay.is-open { opacity: 1; visibility: visible; }

.nkd-rw-sheet {
  position: relative;
  inline-size: 100%;
  max-block-size: 90vh;
  background: var(--rw-surface);
  border-radius: 22px 22px 0 0;
  box-shadow: 0 -10px 40px rgba(15, 23, 42, .25);
  display: flex; flex-direction: column;
  transform: translateY(16px);
  transition: transform .26s cubic-bezier(.22, 1, .36, 1);
  overflow: hidden;
}
.nkd-rw-overlay.is-open .nkd-rw-sheet { transform: translateY(0); }

.nkd-rw-sheet__grab {
  flex: 0 0 auto;
  inline-size: 40px; block-size: 4px; margin: 8px auto 0;
  border-radius: 999px; background: var(--rw-border);
}

.nkd-rw-sheet__head {
  flex: 0 0 auto;
  display: flex; align-items: flex-start; gap: 10px;
  padding-block: 12px 8px; padding-inline: 18px;
}
.nkd-rw-sheet__title { font-size: 17px; font-weight: 800; line-height: 1.2; margin: 0; color: var(--rw-text); }
.nkd-rw-sheet__sub { margin: 3px 0 0; font-size: 12.5px; color: var(--rw-text-dim); line-height: 1.35; }
.nkd-rw-sheet__unlocked {
  display: inline-flex; align-items: center; gap: 5px;
  margin-block-start: 7px;
  padding-block: 3px; padding-inline: 8px; border-radius: 999px;
  background: var(--rw-indigo-soft); color: var(--rw-indigo);
  font-size: 10.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
}
.nkd-rw-sheet__close {
  flex: 0 0 auto; margin-inline-start: auto;
  inline-size: 44px; block-size: 44px; margin-block-start: -6px;
  display: grid; place-items: center;
  border: none; background: transparent; color: var(--rw-text-dim);
  font-size: 22px; line-height: 1; cursor: pointer; border-radius: 10px;
}
.nkd-rw-sheet__close:hover { background: var(--rw-surface-2); color: var(--rw-text); }
.nkd-rw-sheet__close:focus-visible { outline: 2px solid var(--rw-indigo); outline-offset: 2px; }

.nkd-rw-sheet__body { flex: 1 1 auto; overflow-y: auto; -webkit-overflow-scrolling: touch; padding-block-end: max(18px, env(safe-area-inset-bottom)); }

/* chart */
.nkd-rw-chart { padding-inline: 14px; padding-block: 4px 10px; }
.nkd-rw-chart__wrap { position: relative; block-size: 190px; }

/* day cards: scroll-snap row on mobile */
.nkd-rw-days {
  display: grid; grid-auto-flow: column; grid-auto-columns: 30%;
  gap: 9px;
  padding-inline: 14px; padding-block: 4px 16px;
  overflow-x: auto; scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.nkd-rw-days::-webkit-scrollbar { display: none; }
.nkd-rw-day {
  scroll-snap-align: start;
  border: 1px solid var(--rw-border); border-radius: 13px;
  background: var(--rw-surface-2);
  padding-block: 11px 12px; padding-inline: 12px;
  display: flex; flex-direction: column; gap: 2px;
  position: relative; overflow: hidden;
}
.nkd-rw-day::before {
  content: ""; position: absolute; inset-block-start: 0; inset-inline: 0;
  block-size: 3px; background: var(--rw-day-accent, var(--rw-indigo));
}
.nkd-rw-day.is-today { border-color: rgba(99,102,241,.45); box-shadow: 0 0 0 1px rgba(99,102,241,.25) inset; }
.nkd-rw-day__dow { font-size: 12px; font-weight: 700; color: var(--rw-text-dim); text-transform: uppercase; letter-spacing: .03em; }
.nkd-rw-day__peak { font-size: 26px; font-weight: 800; line-height: 1.05; color: var(--rw-text); font-variant-numeric: tabular-nums; }
.nkd-rw-day__unit { font-size: 11px; font-weight: 600; color: var(--rw-text-dim); margin-block-start: -1px; }
.nkd-rw-day__hour {
  display: inline-flex; align-items: center; gap: 4px; align-self: start;
  margin-block-start: 7px; padding-block: 3px; padding-inline: 7px;
  border-radius: 999px; background: var(--rw-indigo-soft); color: var(--rw-indigo);
  font-size: 11px; font-weight: 700; font-variant-numeric: tabular-nums;
}
.nkd-rw-day__range { font-size: 10.5px; color: var(--rw-text-dim); margin-block-start: 5px; font-variant-numeric: tabular-nums; }

/* footer note */
.nkd-rw-foot { padding-inline: 18px; padding-block: 2px 14px; font-size: 11px; color: var(--rw-text-dim); line-height: 1.4; text-align: center; }

/* loading + error */
.nkd-rw-state { padding-block: 48px; text-align: center; color: var(--rw-text-dim); font-size: 13.5px; }
.nkd-rw-spin {
  inline-size: 26px; block-size: 26px; margin: 0 auto 12px;
  border: 3px solid var(--rw-indigo-soft); border-top-color: var(--rw-indigo);
  border-radius: 50%; animation: nkd-rw-spin .8s linear infinite;
}
.nkd-rw-retry {
  margin-block-start: 12px; min-block-size: 44px;
  padding-block: 10px; padding-inline: 18px;
  border: 1px solid var(--rw-border); border-radius: 11px;
  background: var(--rw-surface); color: var(--rw-text); font-weight: 700; font-size: 14px; cursor: pointer;
}
@keyframes nkd-rw-spin { to { transform: rotate(360deg); } }

/* CTA loading state on ribbon */
.nkd-rw-ribbon.is-loading { pointer-events: none; opacity: .7; }
.nkd-rw-ribbon.is-loading .nkd-rw-ribbon__chev { animation: nkd-rw-spin .8s linear infinite; }

/* ---------- Desktop: centered modal ---------- */
@media (min-width: 700px) {
  .nkd-rw-overlay { align-items: center; padding: 24px; }
  .nkd-rw-sheet { max-inline-size: 540px; border-radius: var(--rw-radius); transform: scale(.96); }
  .nkd-rw-overlay.is-open .nkd-rw-sheet { transform: scale(1); }
  .nkd-rw-sheet__grab { display: none; }
  .nkd-rw-days { grid-auto-columns: 1fr; grid-auto-flow: column; overflow: visible; }
  .nkd-rw-day__peak { font-size: 22px; }
}

/* ---------- Dark mode ---------- */
@media (prefers-color-scheme: dark) {
  .nkd-rw {
    --rw-surface: #1e293b;
    --rw-surface-2: #0f172a;
    --rw-border: rgba(255, 255, 255, 0.10);
    --rw-text: #f1f5f9;
    --rw-text-dim: #94a3b8;
    --rw-indigo-soft: rgba(99, 102, 241, 0.22);
    --rw-shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.4);
  }
  .nkd-rw-ribbon { background: radial-gradient(120% 140% at 0% 0%, var(--rw-indigo-soft), transparent 60%), var(--rw-surface); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .nkd-rw-ribbon, .nkd-rw-overlay, .nkd-rw-sheet { transition: opacity .15s ease; }
  .nkd-rw-sheet { transform: none !important; }
  .nkd-rw-spin, .nkd-rw-ribbon.is-loading .nkd-rw-ribbon__chev { animation: none; }
}