/* ═══════════════════════════════════════════════════════════════
   ProfTutoring — Social Proof Popups
   Powiadomienia "ktoś się zapisał / dołączył / ocenił"
   ═══════════════════════════════════════════════════════════════ */

.sp-stack {
  position: fixed;
  bottom: var(--s-6);
  left: var(--s-6);
  z-index: 90;
  width: 360px;
  max-width: calc(100vw - var(--s-8));
  pointer-events: none;
}

.sp-popup {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: var(--s-4);
  align-items: start;
  padding: var(--s-4) var(--s-5) var(--s-4) var(--s-4);
  background: rgba(255, 253, 247, 0.96);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border: 1px solid var(--border);
  border-left: 3px solid var(--g1);
  border-radius: var(--r-l);
  box-shadow: var(--sh-3), 0 0 0 1px rgba(249, 200, 67, 0.06);
  font-family: var(--font-sans);
  pointer-events: auto;
  cursor: default;
  overflow: hidden;
  transform-origin: bottom left;
  will-change: transform, opacity;
}

/* Subtle gold sheen running across the card on entry */
.sp-popup::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 0%,
    transparent 35%,
    rgba(249, 200, 67, 0.18) 50%,
    transparent 65%,
    transparent 100%
  );
  background-size: 250% 100%;
  background-position: 100% 0;
  pointer-events: none;
  opacity: 0;
}

.sp-popup--enter::before {
  animation: sp-sheen 1.4s 0.45s var(--ease-smooth) 1;
}

@keyframes sp-sheen {
  0%   { opacity: 0; background-position: 100% 0; }
  20%  { opacity: 1; }
  100% { opacity: 0; background-position: -50% 0; }
}

/* ═══════ AVATAR ═══════ */
.sp-popup__avatar {
  position: relative;
  width: 48px;
  height: 48px;
  border-radius: var(--r-m);
  display: grid;
  place-items: center;
  background: var(--grad-primary);
  box-shadow: 0 6px 18px rgba(240, 112, 32, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.35);
  overflow: hidden;
}

.sp-popup__avatar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.4) 0%, transparent 55%);
  pointer-events: none;
}

.sp-popup__avatar-text {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  color: var(--cream);
  letter-spacing: 0.02em;
  text-shadow: 0 1px 2px rgba(20, 14, 9, 0.25);
  position: relative;
  z-index: 1;
}

/* Category-specific avatar tints (subtle differentiation) */
.sp-popup[data-cat="B"] .sp-popup__avatar {
  background: linear-gradient(135deg, var(--g2) 0%, var(--g3) 100%);
}
.sp-popup[data-cat="C"] .sp-popup__avatar {
  background: linear-gradient(135deg, #FFDD7A 0%, var(--g1) 60%, var(--g2) 100%);
}
.sp-popup[data-cat="D"] .sp-popup__avatar {
  background: linear-gradient(135deg, #FFE89A 0%, var(--g1) 50%, #FFB347 100%);
}

/* Live dot — pulsing green */
.sp-popup__live {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ok);
  border: 2.5px solid var(--cream);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
  animation: sp-live-pulse 2s var(--ease-out) infinite;
}

@keyframes sp-live-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.55); }
  70%  { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* ═══════ BODY ═══════ */
.sp-popup__body {
  min-width: 0;
  padding-top: 2px;
}

.sp-popup__text {
  font-size: 14px;
  line-height: 1.45;
  color: var(--ink);
  font-weight: 500;
  letter-spacing: -0.005em;
}

.sp-popup__text b {
  font-weight: 600;
  color: var(--ink);
}

.sp-popup__text em {
  font-family: var(--font-accent);
  font-style: italic;
  font-weight: 500;
  font-size: 15px;
  color: var(--ink-90);
}

.sp-popup__heart {
  display: inline-block;
  color: var(--g1);
  margin-left: 2px;
  font-size: 13px;
  filter: drop-shadow(0 1px 2px rgba(249, 200, 67, 0.35));
  transform-origin: center;
}

.sp-popup--enter .sp-popup__heart {
  animation: sp-heart-pop 0.55s 0.3s var(--ease-spring) 1;
}

@keyframes sp-heart-pop {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.35); }
  70%  { transform: scale(0.95); }
  100% { transform: scale(1); }
}

.sp-popup__meta {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-top: 4px;
  font-size: 11px;
  color: var(--ink-30);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.sp-popup__meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--ink-10);
}

.sp-popup__brand {
  font-weight: 600;
  color: var(--g3);
  letter-spacing: 0.02em;
}

/* ═══════ CLOSE ═══════ */
.sp-popup__close {
  background: none;
  border: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--ink-30);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast);
  margin: -2px -4px 0 0;
  flex-shrink: 0;
}

.sp-popup__close:hover {
  background: var(--paper);
  color: var(--ink);
  transform: rotate(90deg);
}

.sp-popup__close svg {
  width: 12px;
  height: 12px;
}

/* ═══════ PROGRESS BAR ═══════ */
.sp-popup__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, var(--g1) 0%, var(--g2) 100%);
  transform-origin: left center;
  transform: scaleX(1);
  opacity: 0.55;
}

.sp-popup--enter .sp-popup__progress {
  animation: sp-progress 5s linear forwards;
}

.sp-popup--paused .sp-popup__progress {
  animation-play-state: paused;
}

@keyframes sp-progress {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* ═══════ HOVER LIFT ═══════ */
.sp-popup:hover {
  transform: translateY(-3px);
  box-shadow: var(--sh-4), 0 0 0 1px rgba(249, 200, 67, 0.12);
  transition: transform var(--t-spring), box-shadow var(--t-std);
}

/* ═══════ ENTRY / EXIT ═══════ */
.sp-popup--enter {
  animation: sp-enter 0.55s var(--ease-spring) backwards;
}

.sp-popup--exit {
  animation: sp-exit 0.32s var(--ease-out) forwards;
  pointer-events: none;
}

@keyframes sp-enter {
  0%   { opacity: 0; transform: translate3d(-44px, 8px, 0) scale(0.94); }
  60%  { opacity: 1; }
  100% { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

@keyframes sp-exit {
  0%   { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
  100% { opacity: 0; transform: translate3d(-32px, 0, 0) scale(0.96); }
}

/* ═══════ TABLET — sticky CTA jest też na dole, podnosimy popup wyżej ═══════ */
@media (max-width: 959px) {
  .sp-stack {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 96px);
  }
}

/* ═══════ MOBILE ═══════ */
@media (max-width: 640px) {
  .sp-stack {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 96px);
    left: 50%;
    transform: translateX(-50%);
    width: calc(100vw - var(--s-7));
    max-width: 360px;
  }
  .sp-popup {
    grid-template-columns: 42px 1fr auto;
    padding: var(--s-3) var(--s-4) var(--s-3) var(--s-3);
    gap: var(--s-3);
  }
  .sp-popup__avatar { width: 42px; height: 42px; }
  .sp-popup__avatar-text { font-size: 16px; }
  .sp-popup__text { font-size: 13.5px; }
  @keyframes sp-enter {
    0%   { opacity: 0; transform: translate3d(0, 24px, 0) scale(0.96); }
    100% { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
  }
  @keyframes sp-exit {
    0%   { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
    100% { opacity: 0; transform: translate3d(0, 16px, 0) scale(0.97); }
  }
}

/* Reduced motion respect */
@media (prefers-reduced-motion: reduce) {
  .sp-popup,
  .sp-popup *,
  .sp-popup::before {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}