:root {
  --bg: #f2f4f8;
  --card: #ffffff;
  --text: #1b2331;
  --muted: #66748b;
  --primary: #0057ff;
  --primary-strong: #0043c3;
  --secondary: #e7ecf5;
  --danger: #d61f38;
  --ring: #95b8ff;
  --radius: 16px;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  background: radial-gradient(circle at top right, #dce8ff, transparent 45%), var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 14px 8px;
}

h1 {
  margin: 0;
  font-size: 1.3rem;
}

h2 {
  margin: 0;
  font-size: 1rem;
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 0.8rem;
}

.content {
  padding: 8px 12px 94px;
  display: grid;
  gap: 12px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 8px 20px rgba(16, 20, 31, 0.07);
  padding: 12px;
}

.exercise-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.exercise-editor {
  display: grid;
  gap: 10px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  align-items: end;
  padding: 12px;
  background: rgba(16, 20, 31, 0.45);
}

.modal-card {
  width: 100%;
  max-height: calc(100dvh - 40px);
  overflow: auto;
  border-radius: 16px;
  background: var(--card);
  box-shadow: 0 20px 48px rgba(16, 20, 31, 0.26);
  padding: 12px;
}

body.modal-open {
  overflow: hidden;
}

.exercise-editor h3 {
  margin: 0;
  font-size: 0.95rem;
}

.inline-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.exercise-manage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.exercise-manage-legend {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px 56px;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  padding: 0 2px;
}

.exercise-manage-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px 56px;
  gap: 8px;
}

.manage-name-input {
  height: 42px;
}

.manage-weight-input {
  height: 42px;
}

.manage-delete-btn {
  height: 42px;
  min-width: 56px;
}

.full-width {
  width: 100%;
}

.exercise-btn {
  border: 1.5px solid #cfdae9;
  border-radius: 12px;
  padding: 12px 10px;
  background: #f9fbff;
  font-weight: 600;
  color: #2a3549;
  text-align: center;
}

.exercise-btn.active {
  background: #e8f0ff;
  border-color: #7ea8ff;
  color: #0e45b5;
}

.quick-form {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.86rem;
  color: var(--muted);
}

input {
  height: 48px;
  border-radius: 12px;
  border: 1.5px solid #c8d3e3;
  padding: 0 12px;
  font-size: 1.03rem;
  color: var(--text);
  background: #fff;
}

input:focus {
  outline: 3px solid var(--ring);
  border-color: #7ea8ff;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.icon-btn {
  border: 0;
  border-radius: 12px;
  height: 48px;
  font-size: 0.96rem;
  font-weight: 700;
}

.primary-btn {
  background: var(--primary);
  color: #fff;
}

.primary-btn:active {
  background: var(--primary-strong);
}

.secondary-btn {
  background: var(--secondary);
  color: #32415a;
}

.ghost-btn {
  height: 38px;
  background: transparent;
  color: #41546f;
  border: 1px solid #d2dced;
}

.icon-btn {
  height: 40px;
  min-width: 56px;
  background: #fff2f4;
  color: var(--danger);
}

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

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

.compact-btn {
  height: 32px;
  padding: 0 10px;
  font-size: 0.82rem;
}

.badge {
  background: #e8f0ff;
  color: #1948ac;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 999px;
}

.muted {
  color: var(--muted);
  font-size: 0.84rem;
}

.log-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.log-item {
  border: 1px solid #dde5f0;
  border-radius: 12px;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.item-title {
  margin: 0;
  font-weight: 700;
}

.item-meta {
  margin: 3px 0 0;
  color: #4f607b;
  font-size: 0.85rem;
}

.history-modal-card {
  display: grid;
  gap: 10px;
}

.history-modal-card h3 {
  margin: 0;
  font-size: 1rem;
}

.history-list {
  max-height: 52dvh;
  overflow: auto;
  display: grid;
  gap: 10px;
}

.history-day {
  border: 1px solid #dde5f0;
  border-radius: 12px;
  padding: 10px;
  display: grid;
  gap: 8px;
}

.history-day-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.history-day-title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
}

.history-day-list {
  margin: 0;
  padding-left: 18px;
  color: #4f607b;
  font-size: 0.86rem;
  display: grid;
  gap: 4px;
}

.bottom-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(242, 244, 248, 0.92);
  backdrop-filter: blur(8px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

@media (min-width: 760px) {
  .modal-backdrop {
    align-items: center;
  }

  .modal-card {
    max-width: 560px;
    margin: 0 auto;
  }

  .content {
    max-width: 680px;
    margin: 0 auto;
  }

  .topbar {
    max-width: 680px;
    margin: 0 auto;
  }

  .bottom-bar {
    max-width: 680px;
    margin: 0 auto;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 14px 14px 0 0;
  }
}