/* Floating register & book — Apple-style glass */

.ninola-fab-stack {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right, 0px));
  bottom: max(1.25rem, env(safe-area-inset-bottom, 0px));
  z-index: 900;
}

.ninola-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  max-width: calc(100vw - 2.5rem);
  height: 3.1rem;
  padding: 0 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
  background: rgba(26, 26, 26, 0.88);
  backdrop-filter: blur(18px) saturate(1.6);
  -webkit-backdrop-filter: blur(18px) saturate(1.6);
  box-shadow:
    0 6px 28px rgba(26, 26, 26, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ninola-fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(26, 26, 26, 0.28);
}

.ninola-glass-backdrop {
  position: fixed;
  inset: 0;
  z-index: 950;
  background: rgba(20, 20, 22, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.ninola-glass-backdrop.open {
  opacity: 1;
  visibility: visible;
}

/* Panel — mobile uses inset (no vw centering drift) */
.ninola-glass-panel {
  position: fixed;
  z-index: 960;
  box-sizing: border-box;
  margin: 0;
  left: max(0.75rem, env(safe-area-inset-left, 0px));
  right: max(0.75rem, env(safe-area-inset-right, 0px));
  top: 50%;
  width: auto;
  max-width: none;
  max-height: min(
    90dvh,
    calc(100dvh - 1.5rem - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px))
  );
  overflow: hidden;
  padding: 0;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(28px) saturate(1.8);
  -webkit-backdrop-filter: blur(28px) saturate(1.8);
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
  opacity: 0;
  visibility: hidden;
  transform: translateY(calc(-50% + 12px)) scale(0.97);
  transition:
    opacity 0.32s ease,
    visibility 0.32s ease,
    transform 0.32s cubic-bezier(0.33, 1, 0.68, 1);
  display: flex;
  flex-direction: column;
}

.ninola-glass-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) scale(1);
}

.ninola-glass-panel__head {
  flex-shrink: 0;
  padding: 1.1rem 1rem 0.65rem;
  position: relative;
}

.ninola-glass-panel__body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 0 1rem 1rem;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.ninola-glass-panel__body::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.ninola-glass-panel__close {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  color: var(--ink-muted);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.ninola-glass-panel h2 {
  margin: 0 0 0.25rem;
  padding-right: 2.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 4.5vw, 1.35rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.25;
  word-wrap: break-word;
}

.ninola-glass-panel__sub {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--ink-muted);
  line-height: 1.45;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}

.ninola-glass-tabs {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.35rem;
  margin-top: 0.85rem;
  width: 100%;
  min-width: 0;
}

.ninola-glass-tabs button {
  flex: 1 1 0;
  min-width: 0;
  padding: 0.45rem 0.35rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 2.8vw, 0.8125rem);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}

.ninola-glass-tabs button.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.ninola-glass-pane {
  display: none;
  padding-top: 0.85rem;
  min-width: 0;
}

.ninola-glass-pane.active {
  display: block;
}

.ninola-glass-form {
  min-width: 0;
}

.ninola-glass-form .form-group {
  margin-bottom: 0.75rem;
  min-width: 0;
}

.ninola-glass-form label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-muted);
  margin-bottom: 0.3rem;
  text-transform: none;
  letter-spacing: 0.02em;
}

.ninola-glass-form .form-control {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(26, 26, 26, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.7);
  font-size: 16px; /* prevents iOS zoom on focus */
}

.ninola-glass-form .form-control:focus {
  outline: none;
  border-color: rgba(26, 26, 26, 0.3);
}

.ninola-glass-form .btn {
  width: 100%;
  max-width: 100%;
  margin-top: 0.35rem;
  border-radius: 8px;
  padding: 0.7rem 1rem;
  box-sizing: border-box;
  white-space: normal;
}

.ninola-glass-member-hint {
  font-size: 0.8125rem;
  color: var(--ink-muted);
  margin: 0 0 0.75rem;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  background: rgba(26, 26, 26, 0.04);
  word-wrap: break-word;
}

/* Tablet — centered card */
@media (min-width: 640px) {
  .ninola-glass-panel {
    left: 50%;
    right: auto;
    width: min(26rem, calc(100vw - 2.5rem));
    max-height: min(88dvh, 40rem);
    transform: translate(-50%, calc(-50% + 12px)) scale(0.97);
  }

  .ninola-glass-panel.open {
    transform: translate(-50%, -50%) scale(1);
  }

  .ninola-glass-panel__head {
    padding: 1.25rem 1.25rem 0.75rem;
  }

  .ninola-glass-panel__body {
    padding: 0 1.25rem 1.25rem;
  }
}

/* Desktop */
@media (min-width: 980px) {
  .ninola-glass-panel {
    width: min(25rem, 400px);
  }
}

/* Small phones — bottom sheet (easier thumb reach, no side clip) */
@media (max-width: 479px) {
  .ninola-fab {
    height: 2.85rem;
    padding: 0 0.85rem;
    font-size: 0.8125rem;
  }

  .ninola-glass-panel {
    left: 0;
    right: 0;
    top: auto;
    bottom: 0;
    width: 100%;
    max-width: 100%;
    max-height: min(92dvh, calc(100dvh - env(safe-area-inset-top, 0px)));
    border-radius: 18px 18px 0 0;
    border-bottom: none;
    transform: translateY(100%);
  }

  .ninola-glass-panel.open {
    transform: translateY(0);
  }

  .ninola-glass-panel__head {
    padding-top: max(1rem, env(safe-area-inset-top, 0px));
  }

  .ninola-glass-panel__body {
    padding-bottom: max(1rem, env(safe-area-inset-bottom, 0px));
  }
}