:root {
  --bg-soft: #fff8fb;
  --bg-grad-a: #ffdce8;
  --bg-grad-b: #ffeec6;
  --ink: #5a2237;
  --pink-main: #ff5a9a;
  --pink-deep: #d81b60;
  --pink-soft: #ffd6e7;
  --card: #fffdfd;
  --accent: #ff9e65;
  --line: #f7bfd5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Yusei Magic", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 15%, var(--bg-grad-b), transparent 30%),
    radial-gradient(circle at 80% 10%, #ffd2e0, transparent 25%),
    linear-gradient(155deg, var(--bg-soft), var(--bg-grad-a));
}

.app {
  max-width: 430px;
  margin: 0 auto;
  padding: 14px 12px calc(22px + env(safe-area-inset-bottom));
}

.top {
  padding: 8px 6px 12px;
}

.eyebrow {
  margin: 0 0 5px;
  font-size: 0.85rem;
  color: #ad466d;
}

h1 {
  margin: 0;
  line-height: 1.25;
  font-size: 1.45rem;
}

.calendar-card,
.detail-card,
.party-card {
  background: var(--card);
  border-radius: 20px;
  border: 2px solid #fff;
  box-shadow: 0 10px 24px rgba(162, 45, 96, 0.14);
}

.calendar-card {
  padding: 12px;
}

.month-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.month-nav h2 {
  margin: 0;
  font-size: 1.1rem;
}

.month-nav button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: #fff;
  background: linear-gradient(140deg, var(--pink-main), var(--accent));
}

.week-header,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.week-header div {
  text-align: center;
  font-size: 0.8rem;
  color: #8c4d66;
}

.calendar-grid {
  margin-top: 4px;
}

.day-cell {
  min-height: 70px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 7px 4px 4px;
  background: #fff9fc;
  text-align: center;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.day-cell:active {
  transform: scale(0.97);
}

.day-cell.is-selected {
  box-shadow: 0 0 0 2px var(--pink-main);
}

.day-cell .date-num {
  display: block;
  font-size: 0.95rem;
}

.day-cell .stars {
  display: block;
  margin-top: 5px;
  min-height: 1em;
  line-height: 1;
  white-space: nowrap;
  font-size: 0.76rem;
  letter-spacing: -0.06em;
}

.day-cell .stars.count-1,
.day-cell .stars.count-2 {
  font-size: 0.8rem;
  letter-spacing: -0.04em;
}

.day-cell .stars.count-3 {
  font-size: 0.64rem;
  letter-spacing: -0.12em;
}

.day-cell.is-perfect {
  border-color: #c00f52;
  background: linear-gradient(180deg, #f03685, var(--pink-deep));
  color: #fff;
}

.day-cell.is-perfect .stars {
  color: #fff8b2;
}

.day-cell.is-empty {
  border: none;
  background: transparent;
  cursor: default;
}

.detail-card {
  margin-top: 12px;
  padding: 14px;
}

.detail-card h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.hint {
  margin: 0 0 12px;
  font-size: 0.82rem;
  color: #8f4f67;
}

.slot-list {
  display: grid;
  gap: 9px;
}

.slot-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.slot-row span {
  width: 2.4em;
  font-size: 1rem;
}

select {
  width: 100%;
  appearance: none;
  border: 1px solid #f1a7c6;
  background:
    linear-gradient(160deg, #fff, #ffeaf3);
  border-radius: 12px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
}

.today-stars {
  margin: 12px 0 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: #ab1a53;
}

.sync-status {
  margin: 8px 0 0;
  font-size: 0.8rem;
  color: #9e4d6c;
}

.sync-status.is-error {
  color: #b0003a;
}

.timer-box {
  margin-top: 12px;
  padding: 14px;
  border-radius: 16px;
  background: linear-gradient(155deg, #fff6fb, #ffe5f1);
  border: 1px solid #ffc3dc;
  box-shadow: 0 8px 20px rgba(205, 48, 117, 0.14);
}

.timer-title {
  margin: 0;
  color: #8d2f58;
  font-size: 0.86rem;
}

.timer-display {
  margin: 4px 0 8px;
  font-size: 2.1rem;
  letter-spacing: 0.05em;
  line-height: 1;
  color: #a60f49;
}

.timer-track {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: #ffd2e5;
  overflow: hidden;
}

.timer-fill {
  width: 100%;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff7fb4, #ff4f91);
  transition: width 0.2s linear;
}

.timer-actions {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.timer-btn {
  width: 100%;
  border: none;
  border-radius: 14px;
  min-height: 186px;
  padding: 24px 18px;
  font-family: inherit;
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
  color: #7f2e4f;
  background: #ffe3ef;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  box-shadow: 0 6px 14px rgba(197, 78, 133, 0.16);
}

.timer-btn.main {
  min-height: 222px;
  font-size: 2.2rem;
  color: #fff;
  background: linear-gradient(135deg, #ff6aa6, #f7438a);
  box-shadow: 0 12px 20px rgba(222, 56, 125, 0.3);
}

.timer-btn.sub {
  background: #ffd8e9;
}

.timer-btn:active {
  transform: scale(0.99);
}

.timer-btn.main.is-running {
  background: linear-gradient(135deg, #ff8c5f, #ff5a5f);
}

.timer-status {
  margin: 8px 0 0;
  font-size: 0.9rem;
  color: #8b4762;
}

@media (min-width: 430px) {
  .app {
    max-width: 440px;
    padding-left: 14px;
    padding-right: 14px;
  }

  .timer-box {
    padding: 16px;
  }

  .timer-display {
    font-size: 2.35rem;
  }

  .timer-track {
    height: 14px;
  }

  .timer-btn {
    min-height: 186px;
    font-size: 1.9rem;
  }

  .timer-btn.main {
    min-height: 222px;
    font-size: 2.2rem;
  }
}

.party-card {
  margin-top: 12px;
  padding: 18px 12px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.party-card.hidden {
  display: none;
}

.party-bg {
  position: absolute;
  inset: -10px;
  background:
    repeating-linear-gradient(45deg, rgba(255, 205, 79, 0.4) 0 12px, rgba(255, 92, 147, 0.35) 12px 24px),
    radial-gradient(circle at 30% 35%, rgba(255, 255, 255, 0.8), transparent 30%);
  opacity: 0.75;
  animation: float-bg 2.4s infinite ease-in-out;
}

.party-title,
.party-icons,
.party-msg {
  position: relative;
  margin: 0;
}

.party-title {
  font-size: 1.35rem;
  color: #a70f44;
}

.party-icons {
  margin-top: 8px;
  font-size: 1.35rem;
  animation: pop 0.8s ease infinite alternate;
}

.party-msg {
  margin-top: 8px;
  font-size: 0.9rem;
}

.confetti {
  position: fixed;
  top: -14px;
  width: 10px;
  height: 14px;
  border-radius: 3px;
  opacity: 0.9;
  animation: drop 1200ms ease-in forwards;
  z-index: 2000;
}

.app-version {
  margin: 10px 4px 0;
  text-align: right;
  font-size: 0.76rem;
  color: #9f5f79;
}

@keyframes drop {
  from {
    transform: translateY(-10px) rotate(0deg);
  }
  to {
    transform: translateY(110vh) rotate(660deg);
  }
}

@keyframes pop {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.06);
  }
}

@keyframes float-bg {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
  100% {
    transform: translateY(0);
  }
}