/* ============================================================
   ytunoti.css — Apple-style Notification + Letter Sheet
   For pages that use hst.css (navbar z-index ~1000).
   All notification layers are set ABOVE 1000.
   ============================================================ */

/* ── Blur Overlay ─────────────────────────────────────────── */
.notify-overlay {
  position: fixed;
  inset: 0;
  z-index: 1100;                        /* above navbar */
  background: rgba(0, 0, 0, 0.20);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.38s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.notify-overlay.notify-visible {
  opacity: 1;
  pointer-events: all;
}
.notify-overlay.letter-open {
  background: rgba(0, 0, 0, 0.50);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
}

/* ── Notification Bar ─────────────────────────────────────── */
.notify-bar {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%) translateY(-130%);
  z-index: 1200;                        /* above overlay */
  width: calc(100% - 32px);
  max-width: 420px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(200%) blur(28px);
  -webkit-backdrop-filter: saturate(200%) blur(28px);
  border-radius: 0 0 22px 22px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-top: none;
  box-shadow:
    0 28px 70px rgba(0, 0, 0, 0.22),
    0 6px 20px rgba(0, 0, 0, 0.10),
    inset 0 1px 0 rgba(255, 255, 255, 1);
  overflow: hidden;
  transition: transform 0.56s cubic-bezier(0.34, 1.26, 0.64, 1);
  will-change: transform;
}
.notify-bar.notify-visible {
  transform: translateX(-50%) translateY(0);
}
.notify-bar.notify-out {
  transform: translateX(-50%) translateY(-130%);
  transition: transform 0.38s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── Dismiss (×) Button ───────────────────────────────────── */
.notify-x {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.07);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.18s, transform 0.15s;
  z-index: 1;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.notify-x:hover  { background: rgba(0, 0, 0, 0.14); }
.notify-x:active { transform: scale(0.9); }
.notify-x svg { width: 10px; height: 10px; color: #636366; }

/* ── Content Row ──────────────────────────────────────────── */
.notify-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 44px 18px 16px;
}

/* App icon */
.notify-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(145deg, #2563eb, #1d4ed8);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.38);
  overflow: hidden;
}
.notify-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 14px;
}
.notify-icon-fallback {
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.03em;
  width: 100%;
  height: 100%;
}

/* Text */
.notify-text { flex: 1; min-width: 0; }
.notify-eyebrow {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #aeaeb2;
  margin-bottom: 2px;
}
.notify-title {
  font-size: 14px;
  font-weight: 700;
  color: #1d1d1f;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.notify-body {
  font-size: 12.5px;
  color: #6e6e73;
  line-height: 1.48;
}
.notify-body-text {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Open button */
.notify-action {
  flex-shrink: 0;
  background: #e5e5ea;
  color: #2563eb;
  border: none;
  border-radius: 999px;
  padding: 7px 16px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: -0.01em;
  transition: background 0.18s, transform 0.15s;
  white-space: nowrap;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.notify-action:hover  { background: #d1d1d6; transform: scale(1.03); }
.notify-action:active { transform: scale(0.97); }

/* "more" inline */
.notify-more {
  display: inline;
  background: none;
  border: none;
  padding: 0 0 0 3px;
  margin: 0;
  font: inherit;
  font-size: 12.5px;
  font-weight: 700;
  color: #2563eb;
  cursor: pointer;
  vertical-align: baseline;
  letter-spacing: 0;
  line-height: inherit;
  transition: opacity 0.15s;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.notify-more:hover { opacity: 0.72; }

/* Progress line */
.notify-progress {
  height: 2.5px;
  background: rgba(37, 99, 235, 0.10);
  overflow: hidden;
}
.notify-progress-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
  transform-origin: left;
  transform: scaleX(1);
}

/* ── Letter Sheet ─────────────────────────────────────────── */
.letter-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1300;                        /* highest layer */
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: saturate(200%) blur(40px);
  -webkit-backdrop-filter: saturate(200%) blur(40px);
  border-radius: 20px 20px 0 0;
  box-shadow:
    0 -8px 40px rgba(0, 0, 0, 0.18),
    0 -2px 8px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  max-height: 82vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(110%);
  transition: transform 0.52s cubic-bezier(0.34, 1.18, 0.64, 1);
  will-change: transform;
}
.letter-sheet.letter-open {
  transform: translateY(0);
}

/* Drag handle */
.letter-handle {
  width: 36px;
  height: 5px;
  background: #d1d1d6;
  border-radius: 3px;
  margin: 12px auto 0;
  flex-shrink: 0;
}

/* Header */
.letter-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 14px;
  flex-shrink: 0;
}
.letter-from {
  display: flex;
  align-items: center;
  gap: 12px;
}
.letter-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(145deg, #2563eb, #1d4ed8);
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
}
.letter-avatar img { width: 100%; height: 100%; object-fit: cover; }
.letter-avatar-fallback {
  display: none;
  font-size: 10px;
  font-weight: 800;
  color: white;
  letter-spacing: 0.02em;
}
.letter-sender {
  font-size: 15px;
  font-weight: 700;
  color: #1d1d1f;
  line-height: 1.2;
}
.letter-date {
  font-size: 12px;
  color: #aeaeb2;
  margin-top: 2px;
}

/* Close button */
.letter-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #f2f2f7;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.18s, transform 0.15s;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.letter-close:hover  { background: #e5e5ea; }
.letter-close:active { transform: scale(0.9); }
.letter-close svg { width: 12px; height: 12px; color: #636366; }

/* Divider */
.letter-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, #e5e5ea 20%, #e5e5ea 80%, transparent);
  margin: 0 20px;
  flex-shrink: 0;
}

/* Scrollable body */
.letter-body {
  padding: 22px 24px 10px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1;
}
.letter-subject {
  font-size: 20px;
  font-weight: 800;
  color: #1d1d1f;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 0 0 20px;
}
.letter-content p {
  font-size: 15px;
  color: #3c3c43;
  line-height: 1.75;
  margin: 0 0 16px;
}
.letter-content p:last-child { margin-bottom: 0; }
.letter-content strong { color: #1d1d1f; font-weight: 700; }

/* Footer */
.letter-footer {
  padding: 16px 24px 28px;
  flex-shrink: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}
.letter-got-it {
  width: 100%;
  background: #2563eb;
  color: #ffffff;
  border: none;
  border-radius: 14px;
  padding: 15px 20px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: background 0.18s, transform 0.15s, box-shadow 0.18s;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.38);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.letter-got-it:hover  { background: #1d4ed8; box-shadow: 0 6px 22px rgba(37, 99, 235, 0.46); transform: translateY(-1px); }
.letter-got-it:active { transform: scale(0.98); }