/* ============================================
   航天体能 PWA — 全局样式
   主题：深空蓝 + 航天橙
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

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

:root {
  --bg:          #0a1628;
  --bg2:         #0f1f3d;
  --card:        #142040;
  --card2:       #1a2a50;
  --accent:      #f97316;   /* 航天橙 */
  --accent2:     #3b82f6;   /* 科技蓝 */
  --green:       #22c55e;
  --yellow:      #eab308;
  --red:         #ef4444;
  --text:        #e2e8f0;
  --text2:       #94a3b8;
  --text3:       #475569;
  --border:      rgba(255,255,255,0.08);
  --ring-bg:     rgba(255,255,255,0.08);
  --radius:      16px;
  --radius-sm:   10px;
  --nav-h:       64px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans SC', -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

/* ========== 头部 ========== */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px 8px;
  background: linear-gradient(180deg, #0a1628 0%, transparent 100%);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-left { display: flex; align-items: center; gap: 10px; }
.tifan-avatar { font-size: 28px; }
.badge {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}
.date { font-size: 12px; color: var(--text2); margin-top: 2px; }
.header-right { display: flex; align-items: center; gap: 10px; }
.week-info {
  background: var(--card2);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid rgba(249,115,22,0.3);
}
.icon-btn { background: none; border: none; font-size: 20px; cursor: pointer; padding: 4px; }
.tifan-tip { font-size: 11px; color: var(--text3); text-align: center; padding: 2px 0 6px; }

/* ========== 四节律时间轴 ========== */
.rhythm-bar {
  display: flex;
  gap: 6px;
  padding: 8px 16px 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.rhythm-bar::-webkit-scrollbar { display: none; }
.rhythm-item {
  flex: 1;
  min-width: 70px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 6px;
  text-align: center;
  opacity: 0.5;
  transition: all 0.3s ease;
  cursor: default;
}
.rhythm-item.active {
  opacity: 1;
  background: var(--card2);
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(249,115,22,0.2);
}
.rhythm-icon { font-size: 20px; }
.rhythm-label { font-size: 12px; font-weight: 600; margin-top: 2px; }
.rhythm-time { font-size: 10px; color: var(--text3); }
.rhythm-item.active .rhythm-label { color: var(--accent); }

/* ========== 容器 ========== */
.container {
  padding: 0 16px 80px;
  max-width: 480px;
  margin: 0 auto;
}

/* ========== FAI 英雄区 ========== */
.score-hero {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  margin-bottom: 16px;
}
.fai-ring {
  position: relative;
  width: 180px;
  height: 180px;
  margin: 0 auto 12px;
}
.fai-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.ring-bg {
  fill: none;
  stroke: var(--ring-bg);
  stroke-width: 12;
}
.ring-fill {
  fill: none;
  stroke: url(#ringGradient);
  stroke-width: 12;
  stroke-linecap: round;
  transition: stroke-dasharray 1s ease, stroke 0.5s;
}
.fai-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}
.fai-num {
  font-size: 48px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.fai-label {
  font-size: 12px;
  color: var(--text2);
  letter-spacing: 2px;
}
.fai-level {
  font-size: 13px;
  font-weight: 600;
  margin-top: 4px;
  padding: 2px 10px;
  border-radius: 20px;
  display: inline-block;
}
.level-excellent { background: rgba(34,197,94,0.2); color: var(--green); }
.level-good      { background: rgba(59,130,246,0.2); color: var(--accent2); }
.level-fair      { background: rgba(234,179,8,0.2); color: var(--yellow); }
.level-warning   { background: rgba(239,68,68,0.2); color: var(--red); }
.level-none      { background: rgba(255,255,255,0.05); color: var(--text3); }

.fai-hint { font-size: 12px; color: var(--text3); margin-bottom: 12px; }

/* 快速状态栏 */
.quick-status {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 8px;
}
.qs-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.qs-val {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.qs-key { font-size: 10px; color: var(--text3); }

/* ========== 卡片通用 ========== */
.section-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.section-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.badge-tag {
  background: rgba(249,115,22,0.15);
  color: var(--accent);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
}

/* ========== DELTA 网格 ========== */
.delta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.delta-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 6px;
  text-align: center;
  position: relative;
  cursor: default;
  transition: transform 0.2s;
}
.delta-item:hover { transform: scale(1.03); }
.delta-icon { font-size: 16px; margin-bottom: 4px; }
.delta-val {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.delta-label { font-size: 10px; color: var(--text2); margin-top: 3px; }
.delta-unit  { font-size: 9px; color: var(--text3); }
.delta-trend {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 12px;
}
/* DELTA 7项只有7个，网格4列需要8格，最后一个占满 */
.delta-item:last-child { grid-column: span 2; }

/* ========== 任务列表 ========== */
.task-list { display: flex; flex-direction: column; gap: 8px; }
.task-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  transition: all 0.2s;
}
.task-item.done {
  opacity: 0.5;
  background: rgba(34,197,94,0.05);
  border-color: rgba(34,197,94,0.2);
}
.task-check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
}
.task-item.done .task-check {
  background: var(--green);
  border-color: var(--green);
}
.task-info { flex: 1; }
.task-name { font-size: 14px; font-weight: 500; }
.task-meta { font-size: 11px; color: var(--text3); margin-top: 2px; }
.task-duration {
  font-size: 12px;
  color: var(--text2);
  background: var(--card);
  padding: 3px 8px;
  border-radius: 20px;
  flex-shrink: 0;
}

/* ========== 打卡网格 ========== */
.checkin-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}
.checkin-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 8px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}
.checkin-btn:active { transform: scale(0.96); }
.checkin-btn.checked {
  background: rgba(249,115,22,0.15);
  border-color: var(--accent);
}
.checkin-btn .ci-icon  { font-size: 22px; }
.checkin-btn .ci-label { font-size: 11px; color: var(--text2); margin-top: 4px; }
.checkin-btn.checked .ci-label { color: var(--accent); }

/* ========== 底部导航 ========== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(10,22,40,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 200;
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  cursor: pointer;
  padding: 8px 20px;
  border-radius: 12px;
  transition: all 0.2s;
  opacity: 0.5;
}
.nav-item.active { opacity: 1; }
.nav-item.active .nav-icon { transform: scale(1.15); }
.nav-icon { font-size: 22px; transition: transform 0.2s; }
.nav-label { font-size: 10px; color: var(--text2); }
.nav-item.active .nav-label { color: var(--accent); }

/* ========== 主按钮 ========== */
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary:active { transform: scale(0.98); opacity: 0.9; }
.btn-secondary {
  background: var(--bg2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-secondary:active { background: var(--card2); }

/* ========== 弹窗 ========== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 500;
  align-items: flex-end;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.show { display: flex; }
.modal-content {
  background: var(--card);
  border-radius: 20px 20px 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
  padding-bottom: env(safe-area-inset-bottom, 20px);
}
.checkin-modal { max-height: 90vh; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 12px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--card);
  z-index: 1;
}
.modal-title { font-size: 16px; font-weight: 600; }
.modal-close {
  background: var(--bg2);
  border: none;
  color: var(--text2);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-body { padding: 16px 20px 20px; }

/* ========== 设置表单 ========== */
.settings-group {
  margin-bottom: 20px;
}
.settings-group-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text2);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.settings-row label { font-size: 14px; color: var(--text); }
.settings-row input[type="number"],
.settings-row input[type="time"] {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 6px 10px;
  font-size: 14px;
  width: 100px;
  text-align: right;
}
.settings-row input:focus {
  outline: none;
  border-color: var(--accent);
}

/* ========== Toast ========== */
.toast {
  position: fixed;
  bottom: calc(var(--nav-h) + 20px);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--card2);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 13px;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 600;
  pointer-events: none;
  white-space: nowrap;
  border: 1px solid var(--border);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ========== FAI 雷达图区（第二页）========== */
.tab-content { display: none; }
.tab-content.active { display: block; }

.fai-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}
.factor-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.factor-name { font-size: 12px; color: var(--text2); margin-bottom: 6px; }
.factor-score {
  font-size: 24px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.factor-bar-bg {
  height: 4px;
  background: var(--bg);
  border-radius: 2px;
  margin-top: 6px;
  overflow: hidden;
}
.factor-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.8s ease;
}
.factor-weight { font-size: 10px; color: var(--text3); margin-top: 4px; }

/* ========== 周视图热力图 ========== */
.week-calendar {
  margin-top: 12px;
}
.week-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 6px;
}
.week-header span {
  text-align: center;
  font-size: 10px;
  color: var(--text3);
}
.week-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 4px;
}
.day-cell {
  aspect-ratio: 1;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s;
  font-size: 10px;
  gap: 2px;
}
.day-cell:hover { transform: scale(1.08); }
.day-cell.empty { background: transparent; cursor: default; }
.day-cell.future { opacity: 0.3; }
.day-cell .day-num { font-weight: 600; }
.day-cell .day-score { font-size: 9px; opacity: 0.8; }
.heat-0  { background: var(--bg2); border: 1px solid var(--border); color: var(--text3); }
.heat-1  { background: rgba(239,68,68,0.2); border-color: rgba(239,68,68,0.3); }
.heat-2  { background: rgba(234,179,8,0.25); border-color: rgba(234,179,8,0.4); }
.heat-3  { background: rgba(34,197,94,0.2); border-color: rgba(34,197,94,0.3); }
.heat-4  { background: rgba(34,197,94,0.4); border-color: rgba(34,197,94,0.5); }
.heat-5  { background: rgba(34,197,94,0.6); border-color: rgba(34,197,94,0.7); }

/* ========== 打卡表单 ========== */
.form-group {
  margin-bottom: 16px;
}
.form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text2);
  margin-bottom: 8px;
  display: block;
}
.form-input {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 12px;
  font-size: 16px;
  font-family: inherit;
  transition: border-color 0.2s;
}
.form-input:focus {
  outline: none;
  border-color: var(--accent);
}
.form-input::placeholder { color: var(--text3); }
.form-select {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 12px;
  font-size: 14px;
  font-family: inherit;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}
.form-hint { font-size: 11px; color: var(--text3); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.toggle-btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.toggle-btn {
  flex: 1;
  min-width: 60px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg2);
  color: var(--text2);
  font-size: 13px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
}
.toggle-btn.selected {
  background: rgba(249,115,22,0.15);
  border-color: var(--accent);
  color: var(--accent);
}

/* ========== 滚动条 ========== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ========== SVG 渐变定义（隐藏）========== */
.svg-defs { position: absolute; width: 0; height: 0; overflow: hidden; }