:root {
  --bg: #0f1117;
  --panel: #1a1d27;
  --panel-2: #222635;
  --border: #2c3245;
  --text: #e6e8ef;
  --muted: #9aa1b5;
  --accent: #6c8cff;
  --accent-2: #4f6ef7;
  --danger: #ff5d6c;
  --success: #3ddc97;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.5rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav .brand { font-weight: 700; color: var(--text); text-decoration: none; font-size: 1.1rem; }

.nav-links { display: flex; gap: 0.4rem; }

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
}
.nav-links a:hover { color: var(--text); background: var(--panel-2); }
.nav-links a.active { color: #fff; background: var(--accent-2); }
.nav-links .print-link { border: 1px solid var(--border); }
.nav-button { border: 0; background: none; color: var(--muted); cursor: pointer; font: inherit; padding: 0.4rem 0.8rem; }
.nav-button:hover { color: var(--text); }
.nav-user { color: var(--muted); padding: 0.4rem 0.4rem; font-size: 0.9rem; }

.auth-card { max-width: 30rem; margin: 4rem auto; }

.container { max-width: 1200px; margin: 0 auto; padding: 1.5rem; }

h1 { margin-top: 0; }
h2, h3 { margin: 0.4rem 0; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.empty { color: var(--muted); padding: 1.5rem 0; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; margin-top: 1rem; }
.card {
  display: block;
  padding: 1.25rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
}
.card:hover { border-color: var(--accent); }
.card p { color: var(--muted); margin-bottom: 0; }

.toolbar { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; margin: 1rem 0; }
.search-form { display: flex; gap: 0.5rem; flex-wrap: wrap; flex: 1; }

input, select, textarea {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.5rem 0.6rem;
  font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }

.btn {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.btn.primary:hover { background: var(--accent); }
.btn.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn.small { padding: 0.25rem 0.6rem; font-size: 0.8rem; }

.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; font-size: 0.85rem; }
.table a { color: var(--accent); text-decoration: none; }
.table a:hover { text-decoration: underline; }

.exercise-group {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}
.exercise-group h2 {
  color: var(--accent);
  font-size: 1.05rem;
  margin: 0 0 0.35rem;
}
.exercise-group .table tr:last-child td { border-bottom: 0; }

.badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 20px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--muted);
  margin-right: 0.3rem;
}

.actions { display: flex; gap: 0.4rem; }

.week { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.day { min-width: 0; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }
.day h3 { margin-top: 0; color: var(--accent); }

.day-picker {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin: 1rem 0;
  padding: 1rem 0;
}
.day-picker-option { position: relative; }
.day-picker-option input { position: absolute; opacity: 0; pointer-events: none; }
.day-picker-option label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  min-width: 3rem;
  min-height: 4.2rem;
  padding: 0.35rem;
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  font-weight: 500;
  transition: color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}
.day-picker-option label:hover { color: var(--text); background: var(--panel-2); }
.day-picker-option input:checked + label {
  color: var(--text);
  background: var(--panel-2);
  font-weight: 700;
  transform: translateY(-2px);
}
.day-picker-option input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 3px; }
.day-picker-letter { font-size: 2rem; line-height: 1; }
.day-picker-name { font-size: 0.65rem; }
.day-picker-count {
  position: absolute;
  top: 0;
  right: -0.15rem;
  min-width: 1.1rem;
  padding: 0.05rem 0.2rem;
  border-radius: 999px;
  background: var(--accent-2);
  text-align: center;
  font-size: 0.7rem;
}
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.day-list { list-style: none; margin: 0 0 1rem; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }

.entry {
  background: var(--panel-2);
  border-radius: 8px;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
}
.entry-main { display: flex; justify-content: space-between; align-items: baseline; gap: 0.5rem; }
.entry-name { font-weight: 600; }
.entry-target { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }
.entry-actions { display: flex; gap: 0.25rem; margin-top: 0.4rem; }

.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 5px;
  width: 26px; height: 26px;
  cursor: pointer;
  font-size: 0.8rem;
  line-height: 1;
  padding: 0;
}
.icon-btn:hover { color: var(--text); border-color: var(--accent); }
.icon-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.icon-btn:disabled:hover { color: var(--muted); border-color: var(--border); }
.icon-btn.danger:hover { color: var(--danger); border-color: var(--danger); }
.schedule-delete {
  width: auto;
  height: auto;
  min-height: 26px;
  padding: 0 0.4rem;
  border-color: transparent;
  color: var(--accent);
  font-weight: 700;
  font-style: italic;
}
.schedule-delete:hover {
  border-color: transparent;
  color: var(--danger);
}

.inline-targets { display: flex; gap: 0.4rem; align-items: flex-end; margin-top: 0.5rem; }
.inline-targets label { display: flex; flex-direction: column; font-size: 0.7rem; color: var(--muted); }
.inline-targets input { width: 4rem; padding: 0.2rem 0.4rem; }

.add-form { display: flex; min-width: 0; gap: 0.35rem; flex-wrap: wrap; margin-top: 0.5rem; }
.add-form select { display: block; flex: 1 1 100%; min-width: 0; max-width: 100%; width: 0; }
.add-form input { width: 4.5rem; padding: 0.3rem 0.5rem; }

@media (max-width: 640px) {
  .day-picker { gap: 0.15rem; justify-content: space-between; }
  .day-picker-option label { min-width: 2.5rem; }
  .day-picker-name { display: none; }
}

.form { max-width: 560px; }
.form label { display: block; margin-bottom: 1rem; font-size: 0.9rem; color: var(--muted); }
.form input, .form select, .form textarea { width: 100%; margin-top: 0.3rem; }
.form-actions { display: flex; gap: 0.6rem; }

.add-sets-form {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 1rem; margin-bottom: 1.5rem;
}
.planned-workout {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 1rem; margin: 1rem 0 1.5rem;
}
.planned-workout h2 { margin-top: 0; }
.planned-list { list-style: none; margin: 0; padding: 0; }
.planned-list li {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.55rem 0; border-bottom: 1px solid var(--border);
}
.planned-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.planned-name { font-weight: 600; }
.planned-target { color: var(--muted); white-space: nowrap; margin-left: auto; }
.planned-log { flex: 0 0 auto; }
.add-sets-head { display: flex; gap: 1rem; flex-wrap: wrap; align-items: flex-end; }
.add-sets-head label {
  display: flex; flex-direction: column; gap: 0.3rem; min-width: 0;
  font-size: 0.8rem; color: var(--muted);
}
.add-sets-head select { width: 100%; min-width: min(220px, 100%); max-width: 100%; }
.add-sets-head input[name="set-count"], .add-sets-head #set-count { width: 70px; }

.sets-input-table { width: 100%; margin-top: 0.8rem; border-collapse: collapse; }
.sets-input-table th {
  text-align: left; color: var(--muted); font-weight: 600;
  font-size: 0.85rem; padding: 0.35rem 0.4rem;
}
.sets-input-table td { padding: 0.25rem 0.4rem; }
.sets-input-table .row-num { color: var(--muted); width: 2rem; }
.sets-input-table input[type="number"] { width: 95px; }
.sets-input-table input[name="notes"] { width: 100%; max-width: 320px; }

.add-sets-actions { display: flex; justify-content: flex-end; margin-top: 0.8rem; }

.set-group { margin-bottom: 1.5rem; }
.set-group h3 { margin-bottom: 0.4rem; }

.alert.error {
  background: rgba(255, 93, 108, 0.12);
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: 8px;
  padding: 0.7rem 1rem;
  margin-bottom: 1rem;
}

.date-label { display: flex; align-items: center; gap: 0.4rem; color: var(--muted); }