:root {
  --bg-a: #ffe0f0;
  --bg-b: #f1e7ff;
  --bg-c: #dbf3ff;
  --bg-d: #ffffff;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --border: rgba(255, 255, 255, 0.72);
  --text: #241a43;
  --text-soft: #655e89;
  --pink: #ff4ea7;
  --purple: #6f59ff;
  --blue: #38bdf8;
  --yellow: #ffbe0b;
  --green: #1fbe75;
  --shadow: 0 30px 70px rgba(75, 43, 132, 0.16);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --transition: 260ms ease;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Poppins", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.96), transparent 34%),
    linear-gradient(135deg, var(--bg-a), var(--bg-b) 42%, var(--bg-c) 76%, var(--bg-d));
  overflow-x: hidden;
}

body {
  position: relative;
}

button {
  font: inherit;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(111, 89, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 89, 255, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 58%, transparent 100%);
}

.bg-blob {
  position: fixed;
  border-radius: 999px;
  z-index: 0;
  filter: blur(18px);
  opacity: 0.56;
  pointer-events: none;
  animation: drift 16s ease-in-out infinite alternate;
}

.blob-a {
  width: 320px;
  height: 320px;
  top: -60px;
  left: -40px;
  background: rgba(255, 78, 167, 0.3);
}

.blob-b {
  width: 360px;
  height: 360px;
  top: 15%;
  right: -90px;
  background: rgba(111, 89, 255, 0.24);
  animation-duration: 18s;
}

.blob-c {
  width: 280px;
  height: 280px;
  left: 8%;
  bottom: 5%;
  background: rgba(56, 189, 248, 0.24);
  animation-duration: 20s;
}

.bg-hearts {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.bg-heart {
  position: absolute;
  bottom: -40px;
  color: rgba(255, 78, 167, 0.22);
  text-shadow: 0 0 10px rgba(255, 78, 167, 0.12);
  animation: floatUp linear forwards;
}

.confetti-canvas {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

.app-shell {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.progress-shell {
  width: min(760px, calc(100vw - 32px));
  margin-bottom: 16px;
  padding: 14px 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--border);
  box-shadow: 0 12px 28px rgba(75, 43, 132, 0.1);
  backdrop-filter: blur(16px);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
  font-size: 0.93rem;
  color: var(--text-soft);
}

.progress-caption {
  font-weight: 600;
}

.progress-track {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(111, 89, 255, 0.12);
}

.progress-value {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--pink), var(--purple), var(--blue));
  transition: width 420ms ease;
}

.panel {
  position: relative;
  width: min(760px, calc(100vw - 32px));
  min-height: 600px;
  padding: clamp(24px, 5vw, 48px);
  border-radius: var(--radius-xl);
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.76), transparent 24%),
    radial-gradient(circle at bottom left, rgba(56, 189, 248, 0.13), transparent 28%);
  pointer-events: none;
}

.hidden {
  display: none !important;
}

.intro-copy,
.question-shell,
.result-shell,
.schedule-shell,
.loading-shell,
.reveal-shell,
.celebration-shell {
  position: relative;
  z-index: 1;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.hero-title {
  margin: 0;
  font-size: clamp(3.2rem, 10vw, 5.8rem);
  line-height: 0.94;
  animation: fadeZoom 1s ease both;
}

.hero-subtitle {
  max-width: 42rem;
  margin: 18px 0 0;
  font-size: 1.05rem;
  color: var(--text-soft);
}

.intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.intro-tags span,
.status-pill {
  width: fit-content;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(111, 89, 255, 0.12);
  font-size: 0.93rem;
  font-weight: 600;
}

.music-button,
.primary-button,
.secondary-button,
.answer-button,
.time-card,
.calendar-day,
.calendar-nav {
  border: 0;
  cursor: pointer;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background var(--transition),
    color var(--transition),
    border-color var(--transition);
}

.music-button {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 2;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 24px rgba(75, 43, 132, 0.1);
}

.music-button.active,
.music-button:hover,
.primary-button:hover,
.secondary-button:hover,
.answer-button:hover,
.time-card:hover,
.calendar-day:hover,
.calendar-nav:hover {
  transform: translateY(-3px);
}

.primary-button,
.secondary-button,
.answer-button,
.time-card {
  border-radius: 20px;
  font-weight: 700;
}

.primary-button {
  width: fit-content;
  padding: 18px 28px;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  color: #fff;
  box-shadow: 0 20px 38px rgba(111, 89, 255, 0.25);
}

.secondary-button {
  padding: 18px 24px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(111, 89, 255, 0.14);
  color: var(--text);
  box-shadow: 0 14px 28px rgba(75, 43, 132, 0.08);
}

.start-button {
  margin-top: 28px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.start-button.show {
  opacity: 1;
  transform: translateY(0);
}

.status-row {
  margin-bottom: 18px;
}

.step-label {
  margin: 0 0 10px;
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--purple);
}

.question-aside {
  margin: 0 0 18px;
  min-height: 1.5em;
  font-weight: 600;
  color: var(--pink);
}

.question-preamble {
  margin: 0 0 10px;
  color: var(--text-soft);
  font-weight: 600;
}

.question-title,
.typing-title {
  margin: 0;
  line-height: 1.1;
}

.question-title {
  font-size: clamp(2rem, 5vw, 3.1rem);
}

.typing-title {
  min-height: 2.2em;
  font-size: clamp(2.1rem, 5vw, 3.7rem);
}

.question-subtitle,
.message-line,
.loading-message,
.reveal-line,
.celebration-line {
  color: var(--text-soft);
}

.question-subtitle {
  margin: 12px 0 0;
}

.question-transition {
  min-height: 180px;
}

.answer-grid,
.time-grid {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.answer-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.time-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.answer-button,
.time-card {
  width: 100%;
  padding: 18px;
  text-align: left;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  box-shadow: 0 14px 28px rgba(75, 43, 132, 0.1);
}

.answer-button:hover,
.time-card:hover {
  background: var(--surface-strong);
  box-shadow: 0 20px 34px rgba(75, 43, 132, 0.14);
}

.result-reveal,
.reveal-actions,
.comeback-shell {
  margin-top: 20px;
}

.result-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.result-card,
.calendar-shell,
.selection-feedback,
.calendar-day {
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 14px 26px rgba(75, 43, 132, 0.08);
}

.result-card {
  padding: 16px 18px;
  border-radius: 18px;
  font-weight: 700;
}

.message-line {
  margin: 22px 0 0;
  font-size: 1.02rem;
}

.fade-item {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.fade-item.show {
  opacity: 1;
  transform: translateY(0);
}

#openCalendarButton {
  margin-top: 28px;
}

.calendar-shell {
  margin-top: 26px;
  padding: 20px;
  border-radius: 24px;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.calendar-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.calendar-nav {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--purple);
  box-shadow: 0 12px 20px rgba(75, 43, 132, 0.08);
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}

.calendar-weekdays {
  margin-bottom: 10px;
  color: var(--text-soft);
  font-size: 0.9rem;
  text-align: center;
}

.calendar-day {
  min-height: 64px;
  padding: 12px 8px;
  border-radius: 16px;
  text-align: center;
  border: 1px solid rgba(111, 89, 255, 0.08);
  color: var(--text);
}

.calendar-day.is-empty,
.calendar-day.is-disabled {
  cursor: default;
  box-shadow: none;
  background: rgba(255, 255, 255, 0.48);
  color: rgba(101, 94, 137, 0.45);
}

.calendar-day.is-selected,
.time-card.is-selected {
  background: linear-gradient(135deg, rgba(255, 78, 167, 0.18), rgba(111, 89, 255, 0.16), rgba(255, 255, 255, 0.92));
  border-color: rgba(111, 89, 255, 0.28);
}

.selection-feedback {
  width: fit-content;
  margin-top: 20px;
  padding: 12px 16px;
  border-radius: 16px;
  color: var(--green);
  font-weight: 700;
}

.scanner {
  position: relative;
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
}

.scanner-large {
  width: 88px;
  height: 88px;
}

.scanner span {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(111, 89, 255, 0.2);
  animation: ping 1.8s ease-out infinite;
}

.scanner span:nth-child(2) {
  animation-delay: 0.35s;
}

.scanner span:nth-child(3) {
  animation-delay: 0.7s;
}

.loading-shell,
.celebration-shell {
  text-align: center;
}

.loading-message {
  font-size: 1.06rem;
  font-weight: 600;
}

.reveal-highlight {
  margin-top: 14px;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--pink);
  line-height: 1.45;
}

.comeback-shell {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
}

.comeback-button {
  margin-top: 18px;
}

.celebration-line {
  margin: 12px 0 0;
  font-size: 1.05rem;
}

.celebration-emoji {
  font-size: 2rem;
  margin: 18px 0 0;
}

.final-feedback {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--green);
  font-weight: 700;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 10;
  transform: translateX(-50%);
  max-width: min(92vw, 480px);
  padding: 14px 18px;
  border-radius: 16px;
  background: rgba(36, 26, 67, 0.92);
  color: #fff;
  text-align: center;
  box-shadow: 0 20px 40px rgba(36, 26, 67, 0.28);
}

.toast.show {
  display: block !important;
  animation: toastIn 2.6s ease forwards;
}

.panel.enter {
  animation: panelIn 420ms ease both;
}

@keyframes fadeZoom {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(36px, -22px, 0);
  }
}

@keyframes floatUp {
  from {
    transform: translate3d(0, 0, 0) scale(0.9);
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  to {
    transform: translate3d(0, -110vh, 0) scale(1.16);
    opacity: 0;
  }
}

@keyframes ping {
  0% {
    transform: scale(0.35);
    opacity: 0.85;
  }
  100% {
    transform: scale(1.16);
    opacity: 0;
  }
}

@keyframes toastIn {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
  15%,
  80% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(8px);
  }
}

@media (max-width: 720px) {
  .panel {
    min-height: 640px;
  }

  .answer-grid,
  .result-cards,
  .time-grid {
    grid-template-columns: 1fr;
  }

  .music-button {
    position: static;
    align-self: flex-end;
    margin-bottom: 28px;
  }

  .result-actions {
    flex-direction: column;
  }

  .result-actions .primary-button,
  .result-actions .secondary-button,
  #openCalendarButton {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}