/* ═══════════════════════════════════════════════
   UI — Toasts, loader, utilities
   ═══════════════════════════════════════════════ */

/* ── Toast ───────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 9999;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
}

.toast-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast-neutral {
  background: var(--paper-deep);
  color: var(--ink);
  border: 1px solid var(--hairline);
}

.toast-info {
  background: var(--paper-deep);
  color: var(--ink);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--blue);
  border-radius: 10px 99px 99px 10px;
  padding-left: 20px;
}

.toast-success {
  background: var(--green);
  color: var(--paper);
}

.toast-error {
  background: var(--red);
  color: white;
}

[data-theme="side-b"] .toast-error {
  color: var(--paper);
}

/* ── Loader ──────────────────────────────────── */
#global-loader {
  position: fixed;
  top: 138px;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: color-mix(in srgb, var(--paper) 80%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  backdrop-filter: blur(2px);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════════
   EMPTY STATES — the Quiet Room (PO07)
   Three tiers: .quiet-room (full), .nudge-card (persistent CTA),
   .inline-empty (small section empties).
   See docs/polish/EMPTY_STATES_SPEC.md.
   ═══════════════════════════════════════════════ */

/* Motif SVG backdrop, mirrors base.css .ambient motifs so
   empty states share the app's drifting-texture language.
   drift-motifs + drift-warmth keyframes are defined in base.css. */
:root {
  --empty-motif-svg: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='420' height='420' viewBox='0 0 420 420'><g fill='none' stroke-width='1'><path d='M50 60 l4 -6 l2 6 l6 2 l-6 2 l-2 6 l-4 -6 l-6 -2 z' fill='%23C3342B' opacity='0.45'/><circle cx='160' cy='120' r='1.8' fill='%234F6C8E' opacity='0.55'/><path d='M280 95 q4 -6 8 0 q4 6 8 0' stroke='%23C3342B' opacity='0.35'/><circle cx='360' cy='180' r='1.5' fill='%23E8B33A' opacity='0.7'/><path d='M90 240 l3 -5 l1.5 5 l5 1.5 l-5 1.5 l-1.5 5 l-3 -5 l-5 -1.5 z' fill='%23E8B33A' opacity='0.4'/><circle cx='220' cy='280' r='2' fill='%23C3342B' opacity='0.35'/><path d='M320 310 q5 -7 10 0 q5 7 10 0' stroke='%234F6C8E' opacity='0.4'/><circle cx='80' cy='360' r='1.4' fill='%234F6C8E' opacity='0.5'/><path d='M190 380 l3 -5 l1.5 5 l5 1.5 l-5 1.5 l-1.5 5 l-3 -5 l-5 -1.5 z' fill='%23C3342B' opacity='0.3'/></g></svg>");
}

[data-theme="side-b"] {
  --empty-motif-svg: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='420' height='420' viewBox='0 0 420 420'><g fill='none' stroke-width='1'><path d='M50 60 l4 -6 l2 6 l6 2 l-6 2 l-2 6 l-4 -6 l-6 -2 z' fill='%23F07A5E' opacity='0.45'/><circle cx='160' cy='120' r='1.8' fill='%235EAAA8' opacity='0.55'/><path d='M280 95 q4 -6 8 0 q4 6 8 0' stroke='%23F07A5E' opacity='0.35'/><circle cx='360' cy='180' r='1.5' fill='%23E8B33A' opacity='0.7'/><path d='M90 240 l3 -5 l1.5 5 l5 1.5 l-5 1.5 l-1.5 5 l-3 -5 l-5 -1.5 z' fill='%23E8B33A' opacity='0.4'/><circle cx='220' cy='280' r='2' fill='%23F07A5E' opacity='0.35'/><path d='M320 310 q5 -7 10 0 q5 7 10 0' stroke='%235EAAA8' opacity='0.4'/><circle cx='80' cy='360' r='1.4' fill='%235EAAA8' opacity='0.5'/><path d='M190 380 l3 -5 l1.5 5 l5 1.5 l-5 1.5 l-1.5 5 l-3 -5 l-5 -1.5 z' fill='%23F07A5E' opacity='0.3'/></g></svg>");
}

/* ── Full Quiet Room ─────────────────────────── */
.quiet-room {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 52px 32px 44px;
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 220px;
}

.quiet-room::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  pointer-events: none;
  background-image: var(--empty-motif-svg);
  background-size: 420px 420px;
  animation: drift-motifs 70s linear infinite;
}

.quiet-room::after {
  content: "";
  position: absolute;
  inset: -30%;
  pointer-events: none;
  background:
    radial-gradient(45% 40% at 25% 35%, rgba(232, 179, 58, 0.18), transparent 70%),
    radial-gradient(50% 45% at 75% 65%, rgba(195, 52, 43, 0.10), transparent 70%);
  animation: drift-warmth 55s ease-in-out infinite alternate;
  filter: blur(20px);
}

[data-theme="side-b"] .quiet-room::after {
  background:
    radial-gradient(45% 40% at 25% 35%, rgba(232, 179, 58, 0.12), transparent 70%),
    radial-gradient(50% 45% at 75% 65%, rgba(240, 122, 94, 0.08), transparent 70%);
}

.quiet-room > * {
  position: relative;
  z-index: 1;
}

.qr-headline {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.15rem;
  line-height: 1.45;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.qr-sub {
  font-family: var(--font-base);
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--ink-faint);
  margin-bottom: 18px;
}

.qr-action-frame {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1.5px dashed var(--hairline);
  border-radius: 10px;
  padding: 14px 20px;
}

.qr-action-btn {
  font-family: var(--font-base);
  font-size: 0.78rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  padding: 8px 18px;
  background: var(--red);
  color: white;
  cursor: pointer;
  transition: background var(--transition);
}

.qr-action-btn:hover { background: var(--red-hover); }

[data-theme="side-b"] .qr-action-btn { color: var(--paper); }

.qr-action-hint {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.68rem;
  color: var(--ink-faint);
}

@media (max-width: 767px) {
  .quiet-room {
    padding: 40px 20px 36px;
    min-height: 200px;
  }
  .qr-headline { font-size: 1.05rem; }
  .qr-sub { font-size: 0.74rem; }
  .qr-action-hint { display: none; }
}

/* ── Inline empty ───────────────────────────── */
.inline-empty {
  padding: 16px 14px;
  text-align: center;
}

.inline-empty-text {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 0.82rem;
  color: var(--ink-faint);
}

/* ── Nudge card ─────────────────────────────── */
.nudge-card {
  position: relative;
  overflow: hidden;
  border: 1.5px dashed var(--hairline);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  text-align: center;
  background: color-mix(in srgb, var(--paper-deep) 40%, transparent);
}

.nudge-card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.2;
  pointer-events: none;
  background-image: var(--empty-motif-svg);
  background-size: 420px 420px;
  animation: drift-motifs 70s linear infinite;
}

.nudge-card > * {
  position: relative;
  z-index: 1;
}

.nudge-headline {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.nudge-sub {
  font-family: var(--font-base);
  font-size: 0.72rem;
  color: var(--ink-faint);
  margin-bottom: 14px;
}

.nudge-btn {
  font-family: var(--font-base);
  font-size: 0.72rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  padding: 7px 16px;
  background: var(--red);
  color: white;
  cursor: pointer;
  transition: background var(--transition);
}

.nudge-btn:hover { background: var(--red-hover); }

[data-theme="side-b"] .nudge-btn { color: var(--paper); }

/* ── Diary empty: ruled lines + dashed write button ── */
.diary-empty-lines {
  width: 80%;
  max-width: 200px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 12px 0 16px;
}

.diary-empty-line {
  height: 1px;
  border-radius: 1px;
  background: var(--hairline);
  opacity: 0.5;
}

.diary-write-btn {
  font-family: var(--font-base);
  font-size: 0.72rem;
  font-weight: 600;
  border: 1.5px dashed var(--hairline);
  border-radius: 8px;
  padding: 8px 16px;
  background: none;
  color: var(--red);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.diary-write-btn:hover {
  background: var(--red);
  color: white;
}

[data-theme="side-b"] .diary-write-btn:hover { color: var(--paper); }

/* Respect reduced motion — disable drift animations on empty states. */
@media (prefers-reduced-motion: reduce) {
  .quiet-room::before,
  .quiet-room::after,
  .nudge-card::before {
    animation: none !important;
  }
}