:root {
  --bg: #0f1115;
  --panel: #171a21;
  --text: #f1f3f7;
  --muted: #9ea5b5;
  --accent: #ff4f4f;
  --accent-dim: #752d2d;
  --border: #2a2f39;
  --future: #f0c419;
  --done: #2ecc71;
  --done-dim: #1f8d4f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #1b2230 0%, var(--bg) 45%);
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans", sans-serif;
}

.app {
  max-width: 560px;
  margin: 0 auto;
  padding: 16px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}

h1,
h2,
h3 {
  margin: 0;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.finish {
  border: 0;
  background: var(--accent);
  color: white;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 700;
  min-height: 46px;
  font-size: 16px;
}

.brand-logo {
  width: 260px;
  max-width: calc(100% - 120px);
  height: auto;
  display: block;
}

.auth-logo {
  width: 100%;
  max-width: 340px;
  justify-self: center;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.header-actions form {
  margin: 0;
}

.workout-title {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 12px;
}

.small-btn {
  border: 1px solid var(--border);
  background: #11141a;
  color: #e6e9ef;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  min-height: 44px;
  cursor: pointer;
}

.workout-list {
  display: grid;
  gap: 12px;
}

.exercise-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}

.exercise-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.exercise-head label,
.plates label,
.plate-row label {
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

.weight-input,
.plates input,
.plate-row input {
  background: #0f1218;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  min-height: 44px;
  font-size: 16px;
}

.weight-input {
  width: 104px;
}

.notes-btn {
  border: 1px solid var(--accent-dim);
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  min-height: 44px;
  font-weight: 700;
  cursor: pointer;
  margin-top: 10px;
}

.notes-input {
  width: 100%;
  background: #0f1218;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  font-size: 15px;
  line-height: 1.4;
  resize: vertical;
  min-height: 110px;
  margin-bottom: 10px;
}

.plates,
.calendar,
.history {
  margin-top: 22px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.plate-content {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.plate-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.plate-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.plate-rows {
  display: grid;
  gap: 8px;
}

.plate-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 8px;
  align-items: end;
}

.plate-result {
  background: #11141a;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  color: var(--muted);
  min-height: 42px;
  line-height: 1.45;
}

.calendar-month {
  color: var(--muted);
  font-size: 13px;
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.calendar-weekdays {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.calendar-day {
  min-height: 42px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

.calendar-day.empty {
  visibility: hidden;
}

.day-num {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: #cfd4de;
}

.calendar-day.workout-done .day-num {
  background: var(--done);
  border-color: var(--done-dim);
  color: #ffffff;
  font-weight: 700;
}

.calendar-day.selected .day-num {
  box-shadow: 0 0 0 2px #7ea6ff;
}

.calendar-day.future-workout .day-num {
  border-color: var(--future);
  color: var(--future);
  font-weight: 700;
}

.calendar-legend {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

.calendar-detail {
  margin-top: 10px;
  background: #11141a;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  color: var(--muted);
  line-height: 1.4;
}

.calendar-detail-session {
  padding-bottom: 8px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.calendar-detail-session:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  margin-right: 6px;
  border: 1px solid var(--border);
  vertical-align: middle;
}

.dot.done {
  background: var(--done);
  border-color: var(--done-dim);
}

.dot.planned {
  background: transparent;
  border-color: var(--future);
}

.set-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.set-btn {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid var(--accent-dim);
  background: var(--accent);
  color: white;
  font-size: 20px;
  font-weight: 700;
}

.set-btn.zero {
  background: #3d414a;
  border-color: #3d414a;
  color: #bbb;
}

.history-item {
  border-bottom: 1px solid var(--border);
  padding: 8px 0;
  color: var(--muted);
  font-size: 13px;
}

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

.history-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.history-link {
  border: 1px solid var(--border);
  background: #11141a;
  color: #e6e9ef;
  border-radius: 8px;
  padding: 8px 11px;
  font-size: 14px;
  min-height: 44px;
  cursor: pointer;
}

.history-delete {
  border-color: var(--accent-dim);
  color: #ff9e9e;
}

.history-detail {
  margin-top: 8px;
  background: #11141a;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  line-height: 1.4;
}

.hidden {
  display: none;
}

.auth-wrap {
  min-height: 100vh;
  display: grid;
  align-items: center;
}

.auth-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.auth-form,
.admin-form {
  display: grid;
  gap: 10px;
}

.auth-form label,
.admin-form label {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.auth-error {
  border: 1px solid var(--accent-dim);
  color: #ffb7b7;
  background: #281515;
  border-radius: 8px;
  padding: 10px;
}

.auth-success {
  border: 1px solid var(--done-dim);
  color: #c9f7db;
  background: #12261b;
  border-radius: 8px;
  padding: 10px;
}

.auth-divider {
  border-top: 1px solid var(--border);
  margin: 2px 0;
}

.auth-note {
  color: var(--muted);
  font-size: 13px;
}

.admin-user-tools {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-inline-form {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.admin-password-input {
  background: #0f1218;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  min-height: 44px;
  font-size: 15px;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

@media (max-width: 480px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .header-actions {
    justify-content: flex-start;
  }

  .brand-logo {
    width: 100%;
    max-width: 100%;
  }

  .set-btn {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .plate-grid {
    grid-template-columns: 1fr;
  }

  .plate-row {
    grid-template-columns: 1fr 1fr;
  }

  .plate-row .remove-plate {
    grid-column: 1 / -1;
  }
}