/* ==========================================================================
   EliDate — Invitación estilo Instagram (Mobile-first, iPhone 15 ~393px)
   ========================================================================== */

:root {
  --ig-bg: #ffffff;
  --ig-border: #dbdbdb;
  --ig-text: #262626;
  --ig-text-secondary: #8e8e8e;
  --ig-skeleton-from: #efefef;
  --ig-skeleton-to: #dbdbdb;
  --ig-gradient: conic-gradient(from 180deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888, #f09433);
  --ig-green: #58c322;
  --ig-red: #ed4956;
  --ig-blue: #0095f6;
  --phone-max: 430px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #fafafa;
  color: var(--ig-text);
  min-height: 100dvh;
  line-height: 1.4;
}

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

/* --------------------------------------------------------------------------
   App shell — marco tipo teléfono
   -------------------------------------------------------------------------- */

.app-shell {
  max-width: var(--phone-max);
  min-height: 100dvh;
  margin: 0 auto;
  background: var(--ig-bg);
  border-left: 1px solid var(--ig-border);
  border-right: 1px solid var(--ig-border);
  position: relative;
}

@media (min-width: 431px) {
  body {
    background: #e5e5e5;
  }

  .app-shell {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    min-height: calc(100dvh - 32px);
    margin-top: 16px;
    margin-bottom: 16px;
    border-radius: 8px;
    overflow: hidden;
  }
}

/* --------------------------------------------------------------------------
   Skeleton loader
   -------------------------------------------------------------------------- */

@keyframes skeleton-pulse {
  0%, 100% { background-color: var(--ig-skeleton-from); }
  50% { background-color: var(--ig-skeleton-to); }
}

.skeleton {
  background-color: var(--ig-skeleton-from);
  animation: skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: 4px;
}

.skeleton--logo {
  width: 103px;
  height: 29px;
  border-radius: 6px;
}

.skeleton--icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.skeleton--circle {
  width: 66px;
  height: 66px;
  border-radius: 50%;
}

.skeleton--label {
  width: 56px;
  height: 10px;
  margin-top: 6px;
}

.skeleton--avatar-sm {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}

.skeleton--username {
  width: 100px;
  height: 12px;
}

.skeleton--post-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 0;
}

.skeleton--line {
  width: 85%;
  height: 10px;
  margin-bottom: 8px;
}

.skeleton--line-short {
  width: 55%;
}

/* --------------------------------------------------------------------------
   Feed header
   -------------------------------------------------------------------------- */

.feed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  padding-top: calc(10px + var(--safe-top));
  border-bottom: 1px solid var(--ig-border);
  position: sticky;
  top: 0;
  background: var(--ig-bg);
  z-index: 10;
}

.feed-header__actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.feed-header__action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 0;
  cursor: default;
}

.feed-header__icon {
  width: 24px;
  height: 24px;
  display: block;
}

.feed-header__profile {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.feed-header__logo {
  height: 29px;
  width: auto;
  max-width: 103px;
  display: block;
}

/* --------------------------------------------------------------------------
   Stories bar
   -------------------------------------------------------------------------- */

.stories-bar {
  border-bottom: 1px solid var(--ig-border);
  padding: 12px 0 10px;
}

.stories-bar__scroll {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding: 0 16px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.stories-bar__scroll::-webkit-scrollbar {
  display: none;
}

.story-item {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 72px;
  background: none;
  border: none;
  padding: 0;
}

.story-item--skeleton {
  pointer-events: none;
}

.story-item__ring {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  padding: 3px;
  background: var(--ig-gradient);
}

.story-item__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--ig-bg);
}

.story-item__label {
  margin-top: 4px;
  font-size: 11px;
  color: var(--ig-text);
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.story-item--live {
  cursor: pointer;
  transition: transform 0.15s ease;
}

.story-item--live:hover {
  transform: scale(1.03);
}

.story-item--live:focus-visible {
  outline: 2px solid var(--ig-blue);
  outline-offset: 4px;
  border-radius: 8px;
}

.story-item--live:active {
  transform: scale(0.97);
}

/* --------------------------------------------------------------------------
   Feed posts skeleton
   -------------------------------------------------------------------------- */

.feed-post {
  border-bottom: 1px solid var(--ig-border);
  padding-bottom: 12px;
  margin-bottom: 4px;
}

.feed-post__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
}

.feed-post__actions {
  display: flex;
  gap: 16px;
  padding: 10px 16px 6px;
}

.feed-post__action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 0;
  cursor: default;
}

.feed-post__action-icon {
  width: 24px;
  height: 24px;
  display: block;
}

.feed-post__lines {
  padding: 0 16px;
}

.feed-post__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.feed-post__username {
  font-size: 13px;
  font-weight: 600;
}

.feed-post__image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   Story viewer (fullscreen modal)
   -------------------------------------------------------------------------- */

.story-viewer {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #000;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.story-viewer.is-open {
  opacity: 1;
  visibility: visible;
}

body.story-open {
  overflow: hidden;
}

.story-viewer__progress {
  position: absolute;
  top: calc(8px + var(--safe-top));
  left: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  z-index: 20;
}

.progress-segment {
  flex: 1;
  height: 2px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 2px;
  overflow: hidden;
}

.progress-segment__fill {
  height: 100%;
  width: 0%;
  background: #fff;
  border-radius: 2px;
  transition: width 0.1s linear;
}

.progress-segment.is-completed .progress-segment__fill {
  width: 100%;
  transition: none;
}

.progress-segment.is-active .progress-segment__fill {
  animation: progress-fill 5s linear forwards;
}

.progress-segment.is-active.is-paused .progress-segment__fill {
  animation-play-state: paused;
}

@keyframes progress-fill {
  from { width: 0%; }
  to { width: 100%; }
}

.story-viewer__header {
  position: absolute;
  top: calc(20px + var(--safe-top));
  left: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 20;
}

.story-viewer__user {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.story-viewer__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.story-viewer__username {
  font-size: 14px;
  font-weight: 600;
}

.story-viewer__time {
  font-size: 14px;
  opacity: 0.85;
}

.story-viewer__close {
  color: #fff;
  font-size: 28px;
  line-height: 1;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.story-viewer__media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.story-viewer__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.2s ease;
}

.story-viewer__image--next {
  opacity: 0;
}

.story-viewer__image.is-fading-out {
  opacity: 0;
}

.story-viewer__image.is-fading-in {
  opacity: 1;
}

.story-viewer__overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 20px 40px;
  pointer-events: none;
}

.story-viewer__overlay > * {
  pointer-events: auto;
}

.story-viewer__tap {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 30%;
  z-index: 15;
  opacity: 0;
}

.story-viewer__tap--prev {
  left: 0;
}

.story-viewer__tap--next {
  right: 0;
}

/* --------------------------------------------------------------------------
   Quiz sticker (Instagram poll style)
   -------------------------------------------------------------------------- */

.quiz-sticker {
  width: min(320px, 88vw);
  background: rgba(255, 255, 255, 0.92);
  border-radius: 16px;
  padding: 20px 16px 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  animation: sticker-pop 0.35s ease;
}

@keyframes sticker-pop {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.quiz-sticker__question {
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 16px;
  color: var(--ig-text);
  line-height: 1.35;
}

.quiz-sticker__options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quiz-option {
  width: 100%;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1.5px solid var(--ig-border);
  background: #fff;
  font-size: 14px;
  font-weight: 500;
  color: var(--ig-text);
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.2s;
}

.quiz-option:hover:not(:disabled) {
  background: #fafafa;
}

.quiz-option:disabled {
  cursor: default;
  opacity: 0.85;
}

.quiz-option--correct {
  background: var(--ig-green) !important;
  border-color: var(--ig-green) !important;
  color: #fff !important;
}

.quiz-option--wrong {
  background: var(--ig-red) !important;
  border-color: var(--ig-red) !important;
  color: #fff !important;
  animation: shake 0.5s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

.quiz-sticker__check {
  display: block;
  text-align: center;
  font-size: 32px;
  margin-top: 12px;
  animation: check-pop 0.4s ease;
}

@keyframes check-pop {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

/* Bonus message after correct answer (historia 1 — KFC/boneless) */
.quiz-bonus {
  margin-top: 12px;
  padding: 10px 12px;
  background: rgba(88, 195, 34, 0.15);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  color: #2d6a1e;
  animation: bonus-slide 0.4s ease 0.2s both;
}

@keyframes bonus-slide {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Invitation (historia 5)
   -------------------------------------------------------------------------- */

.invitation-card {
  width: min(340px, 90vw);
  text-align: center;
  animation: sticker-pop 0.4s ease;
}

.invitation-card__message {
  font-size: clamp(18px, 5vw, 22px);
  font-weight: 600;
  color: #fff;
  line-height: 1.45;
  letter-spacing: 0.01em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
  margin-bottom: 24px;
}

.invitation-card__btn {
  display: inline-block;
  min-width: 180px;
  min-height: 48px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #f09433, #dc2743, #bc1888);
  box-shadow: 0 4px 20px rgba(220, 39, 67, 0.45);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.invitation-card__btn:hover {
  transform: scale(1.04);
  box-shadow: 0 6px 28px rgba(220, 39, 67, 0.55);
}

.invitation-card__btn:active {
  transform: scale(0.97);
}

.invitation-card__btn:disabled {
  opacity: 0.7;
  cursor: default;
  transform: none;
}

.final-message {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  z-index: 25;
  animation: fade-in 0.5s ease;
  pointer-events: none;
}

.final-message__text {
  font-size: clamp(24px, 7vw, 32px);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
  animation: final-pop 0.6s ease 0.2s both;
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes final-pop {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* --------------------------------------------------------------------------
   Confetti
   -------------------------------------------------------------------------- */

.confetti-container {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 30;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  width: 8px;
  height: 8px;
  top: 40%;
  left: 50%;
  border-radius: 2px;
  animation: confetti-fall 1s ease-out forwards;
}

@keyframes confetti-fall {
  0% {
    opacity: 1;
    transform: translate(0, 0) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translate(var(--tx), var(--ty)) rotate(var(--rot));
  }
}

/* --------------------------------------------------------------------------
   Floating hearts
   -------------------------------------------------------------------------- */

.hearts-container {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 30;
  overflow: hidden;
}

.heart-float {
  position: absolute;
  bottom: -20px;
  font-size: var(--size, 20px);
  color: #ff3040;
  animation: float-up var(--duration, 3s) ease-in forwards;
  text-shadow: 0 0 8px rgba(255, 48, 64, 0.4);
}

@keyframes float-up {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-110vh) scale(0.6);
  }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .skeleton,
  .progress-segment.is-active .progress-segment__fill,
  .quiz-option--wrong,
  .confetti-piece,
  .heart-float,
  .quiz-sticker,
  .invitation-card,
  .final-message,
  .final-message__text {
    animation: none !important;
    transition: none !important;
  }

  .story-viewer {
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   Debug (quitar antes de entregar)
   -------------------------------------------------------------------------- */

.debug-clear-storage {
  position: fixed;
  bottom: max(16px, calc(16px + var(--safe-bottom)));
  right: calc((100vw - min(var(--phone-max), 100vw)) / 2 + 12px);
  z-index: 9999;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: #dc2743;
  border-radius: 20px;
  box-shadow: 0 2px 12px rgba(220, 39, 67, 0.45);
  cursor: pointer;
}

.debug-clear-storage:hover {
  background: #c91f37;
}

.debug-clear-storage:focus-visible {
  outline: 2px solid var(--ig-blue);
  outline-offset: 2px;
}

.debug-clear-storage[hidden] {
  display: none !important;
}