/* ══════════════════════════════════════════════════════
   style.css  –  Sức Khoẻ Cá Nhân
   Palette: tối giản, nhẹ nhàng, không quá nổi bật
══════════════════════════════════════════════════════ */

/* ── Biến màu sắc toàn cục ── */
:root {
  --primary:      #b05c7a;      /* hồng trầm */
  --primary-bg:   #f5edf1;      /* nền hồng cực nhạt */
  --primary-dark: #8c3f5a;      /* hover / accent */

  --rose:         #c07080;      /* hồng đất */
  --rose-bg:      #f7edef;

  --blue:         #5878a0;      /* xanh dương trầm */
  --blue-bg:      #edf1f7;

  --purple:       #7a6090;      /* tím trầm */
  --purple-bg:    #f0edf7;

  --green:        #5a8a6a;      /* xanh lá trầm */
  --green-bg:     #edf5f0;

  --orange:       #a07840;      /* cam trầm */
  --orange-bg:    #f7f0e8;

  --red:          #b04545;      /* đỏ cảnh báo */

  --text:         #3a3a3a;
  --subtext:      #888;
  --border:       #e4e4e4;
  --bg:           #f4f4f6;      /* nền trang */
  --surface:      #ffffff;      /* nền card */
  --shadow:       0 2px 12px rgba(0,0,0,0.07);
}

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

/* Thanh cuộn mảnh, đồng bộ với giao diện Phân tích và Tiết kiệm. */
html {
  scrollbar-width: thin;
  scrollbar-color: rgba(176, 92, 122, 0.48) transparent;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track {
  background: transparent;
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb {
  background: rgba(176, 92, 122, 0.48);
  border-radius: 999px;
  border: 1px solid transparent;
  background-clip: padding-box;
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover {
  background: rgba(140, 63, 90, 0.72);
  background-clip: padding-box;
}

/* Các vùng danh sách cuộn riêng cũng dùng cùng kiểu thanh cuộn. */
.item-list,
.search-row,
.modal {
  scrollbar-width: thin;
  scrollbar-color: rgba(176, 92, 122, 0.42) transparent;
}

.item-list::-webkit-scrollbar,
.search-row::-webkit-scrollbar,
.modal::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}

.item-list::-webkit-scrollbar-track,
.search-row::-webkit-scrollbar-track,
.modal::-webkit-scrollbar-track {
  background: transparent;
}

.item-list::-webkit-scrollbar-thumb,
.search-row::-webkit-scrollbar-thumb,
.modal::-webkit-scrollbar-thumb {
  background: rgba(176, 92, 122, 0.42);
  border-radius: 999px;
}

body {
  font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  min-height: 100vh;
  color: var(--text);
}

/* ══════════════════════════════════════
   BOTTOM NAVIGATION BAR
══════════════════════════════════════ */
.ckkn-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 16px;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  z-index: 1000;
  box-shadow: 0 -3px 16px rgba(0, 0, 0, 0.05);
}

.ckkn-bottom-nav .tab-btn,
.ckkn-bottom-nav .nav-back-btn {
  flex: 1;
  max-width: 110px;
  height: 52px;
  background: transparent;
  border: none;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--subtext);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.ckkn-bottom-nav .nav-icon {
  font-size: 1.25rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.18s ease;
}

.ckkn-bottom-nav .nav-label {
  font-size: 0.72rem;
  letter-spacing: 0.2px;
}

.ckkn-bottom-nav .tab-btn:hover,
.ckkn-bottom-nav .nav-back-btn:hover {
  color: var(--primary-dark);
}

.ckkn-bottom-nav .tab-btn:active,
.ckkn-bottom-nav .nav-back-btn:active {
  transform: scale(0.93);
}

.ckkn-bottom-nav .tab-btn.active {
  color: var(--primary-dark);
  background: var(--primary-bg);
  font-weight: 700;
}

.ckkn-bottom-nav .tab-btn.active .nav-icon {
  transform: scale(1.1);
}

.ckkn-bottom-nav .nav-back-btn {
  color: var(--subtext);
}

.ckkn-bottom-nav .ckkn-nav-add-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #FFFFFF;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(176, 92, 122, 0.4);
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
}

.ckkn-bottom-nav .ckkn-nav-add-btn:active {
  transform: scale(0.88);
}

/* ══════════════════════════════════════
   BOTTOM SHEET MODALS (CKKN)
══════════════════════════════════════ */
.ckkn-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.ckkn-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.ckkn-modal-sheet {
  background: var(--surface);
  width: 100%;
  max-width: 520px;
  border-radius: 26px 26px 0 0;
  box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.18);
  border-top: 1px solid rgba(52, 66, 55, 0.1);
  padding: 14px 20px 28px;
  transform: translateY(100%);
  transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 88vh;
  overflow-y: auto;
}

.ckkn-modal-overlay.open .ckkn-modal-sheet {
  transform: translateY(0);
}

.ckkn-drag-handle {
  width: 38px;
  height: 4px;
  background: rgba(52, 66, 55, 0.2);
  border-radius: 99px;
  margin: 0 auto 14px;
}

.ckkn-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(52, 66, 55, 0.08);
}

.ckkn-modal-header h2 {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.01em;
}

.ckkn-modal-close-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(52, 66, 55, 0.06);
  border: none;
  color: var(--subtext);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: bold;
  transition: all 0.15s ease;
}

.ckkn-modal-close-btn:hover {
  background: rgba(176, 92, 122, 0.2);
}

/* Option Picker Cards in Add Modal */
.health-picker-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 8px 0;
}

.health-picker-option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.health-picker-option:hover {
  border-color: var(--primary);
  background: var(--primary-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(176, 92, 122, 0.12);
}

.health-picker-option:active {
  transform: scale(0.97);
}

.health-picker-option .option-icon {
  font-size: 1.8rem;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  box-shadow: var(--shadow);
  flex-shrink: 0;
}

.health-picker-option .option-info {
  flex: 1;
}

.health-picker-option .option-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
}

.health-picker-option .option-info p {
  font-size: 0.74rem;
  color: var(--subtext);
  margin: 0;
  line-height: 1.35;
}

.health-picker-option .option-arrow {
  font-size: 1.35rem;
  color: var(--subtext);
  font-weight: 300;
  padding-right: 4px;
}

/* ══════════════════════════════════════
   LAYOUT
══════════════════════════════════════ */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: max(28px, env(safe-area-inset-top, 0px)) 16px calc(76px + env(safe-area-inset-bottom, 0px));
}

.tab-content        { display: none; }
.tab-content.active { display: block; }

/* ══════════════════════════════════════
   CARDS
══════════════════════════════════════ */
.card {
  background: var(--surface);
  border-radius: 14px;
  padding: 20px 22px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.card h2 {
  font-size: 1rem;
  color: var(--primary-dark);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
}

.card.rose-card h2 { color: var(--rose); }

/* ══════════════════════════════════════
   STATS
══════════════════════════════════════ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.stat-card {
  background: var(--surface);
  border-radius: 12px;
  padding: 14px 12px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
}

.stat-card.purple { border-top-color: var(--purple); }
.stat-card.green  { border-top-color: var(--green);  }
.stat-card.blue   { border-top-color: var(--blue);   }
.stat-card.orange { border-top-color: var(--orange); }
.stat-card.rose   { border-top-color: var(--rose);   }

.stat-card .val {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat-card.purple .val { color: var(--purple); }
.stat-card.green  .val { color: var(--green);  }
.stat-card.blue   .val { color: var(--blue);   }
.stat-card.orange .val { color: var(--orange); }
.stat-card.rose   .val { color: var(--rose);   }

.stat-card .lbl {
  font-size: .74rem;
  color: var(--subtext);
  margin-top: 5px;
}

/* ══════════════════════════════════════
   FORM
══════════════════════════════════════ */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 540px) {
  .form-grid { grid-template-columns: 1fr; }
}

.form-group      { display: flex; flex-direction: column; gap: 5px; }
.form-group.full { grid-column: 1 / -1; }
.form-group.mt   { margin-top: 12px; }

label { font-size: .80rem; font-weight: 600; color: #666; }
label .required { color: var(--red); }

input[type="date"],
input[type="text"],
input[type="time"],
select,
textarea {
  border: 1px solid rgba(52, 66, 55, 0.12);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: .88rem;
  font-family: inherit;
  background: #fbf9f6;
  color: var(--text);
  transition: all .2s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  outline: none;
  background: var(--surface);
}

textarea { resize: vertical; min-height: 68px; }

/* ══════════════════════════════════════
   CHIP (tags có thể click)
══════════════════════════════════════ */
.chip-group { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }

.chip {
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #fafafa;
  cursor: pointer;
  font-size: .80rem;
  color: var(--subtext);
  user-select: none;
  transition: all .15s;
}

.chip:hover { border-color: var(--primary); color: var(--primary); }

.chip.pink.active   { background: var(--primary-bg); color: var(--primary-dark); border-color: var(--primary); font-weight: 600; }
.chip.blue.active   { background: var(--blue-bg);    color: var(--blue);         border-color: var(--blue);    font-weight: 600; }
.chip.rose.active   { background: var(--rose-bg);    color: var(--rose);         border-color: var(--rose);    font-weight: 600; }
.chip.purple.active { background: var(--purple-bg);  color: var(--purple);       border-color: var(--purple);  font-weight: 600; }
.chip.green.active  { background: var(--green-bg);   color: var(--green);        border-color: var(--green);   font-weight: 600; }

/* ══════════════════════════════════════
   BUTTONS
══════════════════════════════════════ */
.btn-row { display: flex; gap: 8px; margin-top: 18px; }

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 12px;
  font-size: .88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .18s;
}

.btn-pink      { background: var(--primary);    color: #fff; flex: 1; }
.btn-rose      { background: var(--rose);        color: #fff; flex: 1; }
.btn-secondary { background: #efefef;            color: #666; }
.btn-danger    { background: var(--red);         color: #fff; flex: 1; }

.btn-pink:hover      { background: var(--primary-dark); }
.btn-rose:hover      { background: #a05060; }
.btn-secondary:hover { background: #e4e4e4; }
.btn-danger:hover    { background: #8c3030; }

/* ══════════════════════════════════════
   LIST ITEMS
══════════════════════════════════════ */
.item-list { display: flex; flex-direction: column; gap: 10px; }

.item {
  background: var(--surface);
  border-radius: 12px;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transition: box-shadow .15s;
}

.item:hover    { box-shadow: var(--shadow); }
.item.rose-item { border-left-color: var(--rose); }

.item-icon {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--primary-bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.item-icon.rose { background: var(--rose-bg); }

.item-info  { flex: 1; }

.item-title {
  font-weight: 700;
  font-size: .90rem;
  color: var(--primary-dark);
}

.item.rose-item .item-title { color: var(--rose); }

/* ══════════════════════════════════════
   LỊCH SỬ – nhóm theo tháng, mở chi tiết khi cần
══════════════════════════════════════ */
.history-groups {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.history-month-group {
  display: grid;
  gap: 8px;
}

.history-month-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 3px;
}

.history-month-heading h3 {
  color: var(--primary-dark);
  font-size: .78rem;
  font-weight: 700;
}

.history-month-heading span {
  color: var(--subtext);
  font-size: .68rem;
}

.relation-history-heading h3 {
  color: var(--rose);
}

.history-month-items {
  display: grid;
  gap: 8px;
}

.history-item {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: 12px;
  transition: box-shadow .15s, border-color .15s;
}

.history-item:hover,
.history-item.is-open {
  box-shadow: var(--shadow);
}

.history-item.rose-history-item {
  border-left-color: var(--rose);
}

.history-item-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.history-item-toggle:hover {
  background: rgba(245, 237, 241, .45);
}

.rose-history-item .history-item-toggle:hover {
  background: rgba(247, 237, 239, .6);
}

.history-item-main {
  min-width: 0;
  flex: 1;
  display: grid;
  gap: 3px;
}

.history-item-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
  color: var(--primary-dark);
  font-size: .82rem;
  font-weight: 700;
}

.rose-history-item .history-item-title {
  color: var(--rose);
}

.history-item-subtitle {
  overflow: hidden;
  color: var(--subtext);
  font-size: .7rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-chevron {
  flex: 0 0 auto;
  color: var(--subtext);
  font-size: 1.05rem;
  line-height: 1;
  transition: transform .18s ease;
}

.history-item.is-open .history-chevron {
  transform: rotate(180deg);
}

.history-item-details {
  display: none;
  padding: 0 12px 12px 60px;
}

.history-item.is-open .history-item-details {
  display: block;
}

.history-item-details .item-meta {
  margin-top: 0;
}

.history-muted {
  color: var(--subtext);
  font-size: .72rem;
}

.history-item-actions {
  display: flex;
  justify-content: flex-end;
  gap: 5px;
  margin-top: 10px;
}

.history-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 12px;
  color: var(--subtext);
  font-size: .7rem;
}

.history-page-btn {
  min-width: 82px;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--primary-dark);
  cursor: pointer;
  font-size: .68rem;
}

.history-page-btn:hover:not(:disabled) {
  border-color: var(--primary);
  background: var(--primary-bg);
}

.history-page-btn:disabled {
  cursor: default;
  opacity: .42;
}

.item-meta {
  font-size: .78rem;
  color: var(--subtext);
  margin-top: 4px;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.item-note {
  font-size: .78rem;
  color: #aaa;
  margin-top: 5px;
  font-style: italic;
}

.item-actions { display: flex; gap: 5px; flex-shrink: 0; }

.icon-btn {
  width: 32px; height: 32px;
  border-radius: 6px; border: 1px solid var(--border);
  background: #fafafa;
  cursor: pointer; font-size: .85rem;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
  color: var(--subtext);
}

.icon-btn.edit:hover { background: var(--orange-bg); border-color: var(--orange); color: var(--orange); }
.icon-btn.del:hover  { background: #fdf0f0;           border-color: var(--red);    color: var(--red);    }

/* ══════════════════════════════════════
   BADGES
══════════════════════════════════════ */
.badge {
  padding: 2px 7px;
  border-radius: 4px;
  font-size: .72rem;
  font-weight: 600;
}

.badge-pink   { background: var(--primary-bg); color: var(--primary-dark); }
.badge-green  { background: var(--green-bg);   color: var(--green); }
.badge-blue   { background: var(--blue-bg);    color: var(--blue); }
.badge-purple { background: var(--purple-bg);  color: var(--purple); }
.badge-orange { background: var(--orange-bg);  color: var(--orange); }
.badge-rose   { background: var(--rose-bg);    color: var(--rose); }

/* ══════════════════════════════════════
   SEARCH & SORT ROW
══════════════════════════════════════ */
.search-row { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.search-row input  { flex: 1; min-width: 150px; }
.search-row select { min-width: 140px; }

/* ══════════════════════════════════════
   DỰ ĐOÁN BANNER
══════════════════════════════════════ */
.predict-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--orange-bg);
  border: 1px solid #d4b88a;
  border-radius: 12px;
  padding: 13px 16px;
  margin-bottom: 18px;
}

.predict-banner .pi { font-size: 1.6rem; }
.predict-banner h3  { font-size: .88rem; color: var(--orange); font-weight: 700; }
.predict-banner p   { font-size: .80rem; color: #7a5a20; margin-top: 2px; }

/* ══════════════════════════════════════
   LIST HEADER
══════════════════════════════════════ */
.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.list-header h2 { margin: 0; }

.history-hint {
  width: 100%;
  color: var(--subtext);
  font-size: .68rem;
}

/* ══════════════════════════════════════
   EXPORT BUTTON
══════════════════════════════════════ */
.export-btn {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid #9dc4ac;
  padding: 5px 13px;
  border-radius: 6px;
  cursor: pointer;
  font-size: .79rem;
  font-weight: 600;
  transition: all .18s;
}

.export-btn:hover { background: var(--green); color: #fff; }

/* ══════════════════════════════════════
   EMPTY STATE
══════════════════════════════════════ */
.empty {
  text-align: center;
  padding: 36px 20px;
  color: #ccc;
}

.empty .ei { font-size: 2.4rem; margin-bottom: 8px; }
.empty p   { font-size: .86rem; }

/* ══════════════════════════════════════
   MODAL
══════════════════════════════════════ */
.overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.35);
  z-index: 1000;
  align-items: center; justify-content: center;
}

.overlay.open { display: flex; }

.modal {
  background: var(--surface);
  border-radius: 14px;
  padding: 24px 20px;
  max-width: 420px; width: 94%;
  box-shadow: 0 8px 32px rgba(0,0,0,.18);
  border: 1px solid var(--border);
}

.modal h3      { color: var(--red); margin-bottom: 8px; font-size: .98rem; }
.modal p       { font-size: .86rem; color: var(--subtext); }
.modal-actions { display: flex; gap: 8px; margin-top: 18px; }

/* ══════════════════════════════════════
   TOAST
══════════════════════════════════════ */
#toast {
  position: fixed;
  bottom: 20px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #444;
  color: #fff;
  padding: 8px 20px;
  border-radius: 8px;
  font-size: .84rem;
  opacity: 0;
  transition: all .28s;
  z-index: 9999;
  white-space: nowrap;
}

#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ══════════════════════════════════════════════════════
   MOBILE UI – tối ưu cho màn hình điện thoại
══════════════════════════════════════════════════════ */
@media (max-width: 600px) {
  html { font-size: 16px; }

  body {
    min-width: 0;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
  }

  .container {
    width: 100%;
    padding: max(14px, env(safe-area-inset-top, 0px)) 8px calc(76px + env(safe-area-inset-bottom, 0px));
  }

  .stats-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    margin-bottom: 10px;
  }

  .stat-card {
    min-width: 0;
    padding: 10px 4px 9px;
    border-radius: 11px;
  }

  .stat-card .val {
    font-size: 1.28rem;
  }

  .stat-card .lbl {
    margin-top: 5px;
    font-size: .59rem;
    line-height: 1.25;
  }

  .predict-banner {
    gap: 8px;
    padding: 10px 11px;
    margin-bottom: 10px;
  }

  .predict-banner .pi { font-size: 1.35rem; }
  .predict-banner h3 { font-size: .78rem; }
  .predict-banner p { font-size: .7rem; }

  .card {
    padding: 13px 11px;
    margin-bottom: 10px;
    border-radius: 13px;
  }

  .card h2 {
    margin-bottom: 12px;
    font-size: .9rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .form-group.mt { margin-top: 10px; }

  label {
    font-size: .72rem;
  }

  input[type="date"],
  input[type="text"],
  input[type="time"],
  select,
  textarea {
    width: 100%;
    min-height: 41px;
    padding: 9px 10px;
    font-size: .82rem;
  }

  textarea { min-height: 76px; }

  /* Các control ngày/giờ của Safari có chiều cao native lớn nếu chỉ đặt
     min-height. Khóa kích thước để luôn vừa với card trên iPhone. */
  input[type="date"],
  input[type="time"],
  input[type="text"],
  select {
    height: 42px;
    min-height: 42px;
    max-height: 42px;
    width: 100%;
    box-sizing: border-box;
    line-height: 1.2;
  }

  input[type="date"],
  input[type="time"] {
    -webkit-appearance: none;
    appearance: none;
    text-align: left;
  }

  input[type="date"]::-webkit-date-and-time-value,
  input[type="time"]::-webkit-date-and-time-value {
    text-align: left;
  }

  .chip-group {
    gap: 5px;
  }

  .chip {
    min-height: 32px;
    padding: 7px 9px;
    border-radius: 8px;
    font-size: .7rem;
    display: inline-flex;
    align-items: center;
  }

  .btn-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
    margin-top: 14px;
  }

  .btn {
    min-height: 42px;
    padding: 9px 7px;
    font-size: .77rem;
  }

  .list-header {
    align-items: flex-start;
    margin-bottom: 10px;
  }

  .list-header h2 { font-size: .88rem; }
  .export-btn { padding: 7px 9px; font-size: .68rem; }

  .search-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .search-row input,
  .search-row select {
    min-width: 0;
  }

  .item {
    gap: 8px;
    padding: 10px 9px;
    border-radius: 11px;
  }

  .item-icon {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }

  .item-title { font-size: .78rem; }
  .item-meta { gap: 4px; font-size: .68rem; }
  .item-note { font-size: .68rem; }
  .item-actions { gap: 4px; }

  .history-item-toggle {
    gap: 8px;
    padding: 10px 9px;
  }

  .history-item-title { font-size: .76rem; }
  .history-item-subtitle { font-size: .66rem; }

  .history-item-details {
    padding: 0 9px 10px 51px;
  }

  .icon-btn {
    width: 30px;
    height: 30px;
    font-size: .78rem;
  }

  .badge {
    padding: 2px 5px;
    font-size: .62rem;
  }

  #toast {
    left: 10px;
    right: 10px;
    width: auto;
    text-align: center;
    white-space: normal;
    font-size: .75rem;
  }
}

/* ══════════════════════════════════════════════════════
   RELATION SAFETY ESTIMATE – lịch tham khảo, không phải bảo đảm tránh thai
══════════════════════════════════════════════════════ */
.relation-safety-card {
  border-color: rgba(106, 123, 104, 0.28);
  background: linear-gradient(135deg, #fffdf9 0%, #f4f7f1 100%);
}

.relation-safety-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.relation-safety-heading h2 {
  margin-bottom: 2px;
  color: var(--primary-dark);
}

.relation-safety-heading p {
  color: var(--subtext);
  font-size: .72rem;
}

.relation-safety-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  border-radius: 12px;
  background: var(--green-bg);
  font-size: 1.1rem;
}

.relation-safety-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 12px;
  padding: 9px 10px;
  border-radius: 9px;
  color: #526153;
  background: rgba(106, 123, 104, 0.09);
  font-size: .72rem;
  line-height: 1.35;
}

.relation-safety-summary strong {
  color: var(--primary-dark);
}

.relation-safety-ranges {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 9px;
}

.relation-safety-range {
  min-width: 0;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.relation-safety-range.lower-risk {
  background: #f0f7ef;
  border-color: #c8dcc7;
}

.relation-safety-range.fertile {
  background: #fff6e9;
  border-color: #ead2aa;
}

.relation-safety-label {
  display: block;
  margin-bottom: 5px;
  font-size: .7rem;
  font-weight: 700;
}

.relation-safety-range.lower-risk .relation-safety-label {
  color: #4f7655;
}

.relation-safety-range.fertile .relation-safety-label {
  color: #9a6c2f;
}

.relation-safety-range strong {
  display: block;
  color: var(--text);
  font-size: .76rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.relation-safety-note {
  margin-top: 10px;
  color: #707870;
  font-size: .68rem;
  line-height: 1.45;
}

.relation-safety-empty {
  display: grid;
  gap: 3px;
  padding: 10px;
  border-radius: 9px;
  color: var(--subtext);
  background: #fafafa;
  font-size: .72rem;
  line-height: 1.35;
}

.relation-safety-empty strong {
  color: var(--primary-dark);
}

@media (max-width: 600px) {
  .relation-safety-card {
    padding: 12px 10px;
  }

  .relation-safety-ranges {
    grid-template-columns: 1fr;
  }

  .relation-safety-range {
    padding: 9px;
  }
}

/* Ẩn thanh cuộn trực quan nhưng vẫn cuộn được bằng vuốt/kéo. */
html,
body,
.item-list,
.search-row,
.modal {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar,
.item-list::-webkit-scrollbar,
.search-row::-webkit-scrollbar,
.modal::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}