:root {
  --cream: #FBF3E4;   /* 奶油米白 - 页面背景 */
  --white: #FFFFFF;   /* 白色 - 卡片底 */
  --brown: #6B4A36;   /* 暖棕 - 标题/正文 */
  --orange: #E8A87C;  /* 杏橙 - 按钮/强调 */
}

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  background-color: var(--cream);
  color: var(--brown);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  background-color: var(--white);
  border-radius: 24px;
  box-shadow: 0 12px 40px rgba(107, 74, 54, 0.12);
  padding: 56px 48px;
  text-align: center;
  max-width: 440px;
  width: 100%;
  animation: rise 0.8s ease-out both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.icon {
  font-size: 40px;
  line-height: 1;
  margin-bottom: 20px;
}

.group-name {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.subtitle {
  font-size: 18px;
  color: var(--orange);
  letter-spacing: 4px;
  margin-bottom: 20px;
}

.welcome {
  font-size: 15px;
  line-height: 1.8;
  opacity: 0.75;
  margin-bottom: 36px;
}

.btn {
  display: inline-block;
  background-color: var(--orange);
  color: var(--white);
  text-decoration: none;
  font-size: 17px;
  letter-spacing: 2px;
  padding: 14px 40px;
  border-radius: 999px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(232, 168, 124, 0.4);
  filter: brightness(1.05);
}

.btn:active {
  transform: translateY(0);
}

button.btn {
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.back-link {
  display: inline-block;
  margin-top: 24px;
  color: var(--brown);
  font-size: 14px;
  opacity: 0.6;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.back-link:hover {
  opacity: 1;
}

/* ===== 第二页：时光胶囊留言板 ===== */
.page2 {
  display: block;
  padding: 24px 16px 56px;
}

.page2 .back-link {
  margin-top: 0;
}

.page2 .topbar {
  max-width: 640px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.page2 .topbar h1 {
  font-size: 22px;
  letter-spacing: 2px;
}

.notice {
  max-width: 640px;
  margin: 0 auto 20px;
  background-color: var(--orange);
  color: var(--white);
  border-radius: 14px;
  padding: 14px 20px;
  font-size: 14px;
  line-height: 1.6;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page2 .card {
  max-width: none;
  width: 100%;
  text-align: left;
  padding: 32px;
  animation: none;
}

.section-title {
  font-size: 18px;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.field {
  margin-bottom: 22px;
}

.field > label {
  display: block;
  font-size: 14px;
  margin-bottom: 10px;
  opacity: 0.75;
}

.mood-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mood {
  border: 1px solid transparent;
  background-color: var(--cream);
  color: var(--brown);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  transition: 0.2s ease;
}

.mood:hover {
  border-color: var(--orange);
}

.mood.active {
  background-color: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}

textarea {
  width: 100%;
  min-height: 120px;
  padding: 14px;
  border: 1px solid rgba(107, 74, 54, 0.15);
  border-radius: 12px;
  background-color: var(--white);
  color: var(--brown);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.7;
  resize: vertical;
}

textarea:focus {
  outline: none;
  border-color: var(--orange);
}

.voice {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.voice audio {
  flex: 1 1 200px;
  max-width: 100%;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--orange);
  color: var(--orange);
}

.btn-outline:hover {
  background-color: var(--orange);
  color: var(--white);
}

.recording {
  background-color: var(--orange) !important;
  color: var(--white) !important;
  border-color: var(--orange) !important;
  animation: pulse 1.2s infinite;
}

.btn-mini {
  background: none;
  border: none;
  color: var(--orange);
  font-size: 13px;
  cursor: pointer;
  opacity: 0.8;
}

.btn-mini:hover {
  opacity: 1;
}

.time-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.time-row input {
  width: 72px;
  padding: 10px;
  border: 1px solid rgba(107, 74, 54, 0.15);
  border-radius: 10px;
  text-align: center;
  font-size: 15px;
  color: var(--brown);
  background-color: var(--white);
}

.time-row input:focus {
  outline: none;
  border-color: var(--orange);
}

.time-row .unit-label {
  font-size: 14px;
  opacity: 0.7;
}

[hidden] {
  display: none !important;
}

.unit {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.unit-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.unit-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  cursor: pointer;
  padding: 4px 10px;
  border: 1px solid rgba(107, 74, 54, 0.15);
  border-radius: 999px;
  transition: 0.2s ease;
  user-select: none;
  opacity: 0.85;
}

.unit-toggle input {
  accent-color: var(--orange);
  cursor: pointer;
  margin: 0;
}

.unit-toggle.checked {
  border-color: var(--orange);
  background-color: var(--cream);
}

.hint {
  margin-top: 10px;
  font-size: 13px;
  opacity: 0.6;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

.capsule-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.capsule {
  border: 1px solid rgba(107, 74, 54, 0.12);
  border-radius: 14px;
  padding: 18px;
  background-color: var(--white);
}

.capsule.delivered {
  border-color: var(--orange);
  background-color: var(--cream);
}

.capsule-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.capsule-mood {
  font-size: 22px;
  line-height: 1;
}

.capsule-mood-label {
  font-size: 14px;
  opacity: 0.7;
}

.capsule-time {
  font-size: 12px;
  opacity: 0.55;
  text-align: right;
}

.capsule-text {
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 10px;
  white-space: pre-wrap;
}

.capsule-locked {
  font-size: 14px;
  opacity: 0.6;
  padding: 10px 12px;
  border-radius: 10px;
  background-color: var(--cream);
}

.capsule.just-unlocked {
  animation: unlock 0.9s ease;
}

@keyframes unlock {
  0% {
    transform: scale(0.95);
    opacity: 0.4;
  }
  45% {
    transform: scale(1.02);
    box-shadow: 0 0 26px rgba(232, 168, 124, 0.55);
  }
  100% {
    transform: scale(1);
    opacity: 1;
    box-shadow: 0 0 0 rgba(232, 168, 124, 0);
  }
}

.capsule-voice {
  width: 100%;
  margin: 6px 0;
}

.capsule-meta {
  font-size: 12px;
  opacity: 0.6;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.badge {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.badge-pending {
  background-color: var(--cream);
  color: var(--brown);
}

.badge-done {
  background-color: var(--orange);
  color: var(--white);
}

.capsule-actions {
  text-align: right;
  margin-top: 12px;
}

.btn-del {
  background: none;
  border: none;
  color: var(--brown);
  font-size: 12px;
  cursor: pointer;
  opacity: 0.5;
}

.btn-del:hover {
  opacity: 1;
}

.empty {
  text-align: center;
  font-size: 14px;
  opacity: 0.55;
  padding: 20px 0;
}

/* ===== 登录页 ===== */
.nickname-input {
  width: 100%;
  padding: 14px;
  border: 1px solid rgba(107, 74, 54, 0.15);
  border-radius: 12px;
  background-color: var(--white);
  color: var(--brown);
  font-family: inherit;
  font-size: 16px;
  text-align: center;
  margin-bottom: 8px;
}

.nickname-input:focus {
  outline: none;
  border-color: var(--orange);
}

.login-error {
  min-height: 20px;
  font-size: 13px;
  color: var(--orange);
  margin-bottom: 12px;
}

/* ===== 顶栏用户 ===== */
.topbar-user {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

/* ===== 收件人下拉 ===== */
select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid rgba(107, 74, 54, 0.15);
  border-radius: 10px;
  background-color: var(--white);
  color: var(--brown);
  font-family: inherit;
  font-size: 15px;
}

select:focus {
  outline: none;
  border-color: var(--orange);
}

/* ===== 角色标签 ===== */
.capsule-role {
  margin-left: auto;
  font-size: 12px;
  color: var(--orange);
  padding: 2px 8px;
  border: 1px solid var(--orange);
  border-radius: 999px;
  white-space: nowrap;
}

/* ===== 日历 ===== */
.cal-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 12px;
}

.cal-title {
  font-size: 16px;
  letter-spacing: 1px;
}

.cal-nav {
  background: none;
  border: 1px solid rgba(107, 74, 54, 0.2);
  color: var(--brown);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}

.cal-nav:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 12px;
  opacity: 0.6;
  margin-bottom: 6px;
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-day {
  aspect-ratio: 1;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  transition: 0.15s ease;
}

.cal-day:hover {
  background-color: var(--cream);
}

.cal-day.empty {
  cursor: default;
}

.cal-day.today {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.cal-num {
  line-height: 1;
}

.cal-dots {
  display: flex;
  gap: 3px;
  margin-top: 4px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.dot-sent {
  background-color: var(--orange);
}

.dot-recv {
  background-color: var(--brown);
}

.cal-legend {
  display: flex;
  gap: 16px;
  justify-content: center;
  font-size: 12px;
  opacity: 0.7;
  margin-top: 10px;
  align-items: center;
}

.cal-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.cal-day-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cal-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  background-color: var(--cream);
}

.cal-role {
  font-size: 12px;
  opacity: 0.8;
}

.cal-snippet {
  flex: 1;
  opacity: 0.85;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}