@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@300;400;500&family=IBM+Plex+Sans:wght@300;400;500&display=swap');

:root {
  --bg:       #0e0e0e;
  --bg2:      #161616;
  --bg3:      #1e1e1e;
  --line:     #2a2a2a;
  --dim:      #444;
  --mid:      #777;
  --text:     #e8e2d6;
  --ghost:    #3a3530;
  --accent:   #c8a96e;
  --accent2:  #8a6f45;
  --danger:   #a05050;
  --mono:     'IBM Plex Mono', monospace;
  --sans:     'IBM Plex Sans', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  min-height: 100%;
}

/* Log page: lock scroll to prevent bounce during entry */
body.log-page {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

#app {
  position: relative;
}

/* Log page only: full-height flex column locked to viewport */
.log-page #app {
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── HAMBURGER ── */
#hamburger {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 100;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
#hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--mid);
  transition: background 0.2s;
}
#hamburger:hover span { background: var(--accent); }

/* ── MENU OVERLAY ── */
#menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
}
#menu-panel {
  position: absolute;
  top: 0; right: 0;
  width: 220px;
  height: 100%;
  background: var(--bg2);
  border-left: 1px solid var(--line);
  padding: 60px 32px 40px;
  display: flex;
  flex-direction: column;
}
.menu-close {
  position: absolute;
  top: 18px; right: 18px;
  background: none;
  border: none;
  color: var(--mid);
  font-size: 1.1rem;
  cursor: pointer;
  font-family: var(--mono);
}
.menu-item {
  display: block;
  color: var(--mid);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s;
}
.menu-item:last-child { border-bottom: none; }
.menu-item:hover, .menu-item.active { color: var(--accent); }

/* ── SCREENS ── */
.screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 80px 32px 48px;
  animation: fadeIn 0.15s ease;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ── START / DONE ── */
.start-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  width: 100%;
}
.start-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--mid);
  text-transform: uppercase;
}
.big-btn {
  width: 100%;
  max-width: 280px;
  padding: 20px;
  background: none;
  border: 1px solid var(--accent2);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.15em;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.big-btn:hover, .big-btn:active {
  background: var(--ghost);
  border-color: var(--accent);
}
.done-btn {
  background: none;
  border: none;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  padding: 12px;
  transition: color 0.2s;
}
.done-btn:hover { color: var(--mid); }

/* ── EXERCISE SCREEN ── */
.ex-meta {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
#ex-name, #check-name {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.04em;
}
#ex-set-label, #check-set-label {
  font-size: 0.7rem;
  color: var(--mid);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.ex-last {
  font-size: 0.72rem;
  color: var(--dim);
  letter-spacing: 0.1em;
  margin-bottom: 40px;
  min-height: 1em;
}

.field-block {
  width: 100%;
  margin-bottom: 28px;
}
.field-block label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--mid);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.field-block input {
  width: 100%;
  background: none;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-family: var(--mono);
  font-size: 2.8rem;
  font-weight: 300;
  padding: 8px 0;
  outline: none;
  transition: border-color 0.2s;
  caret-color: var(--accent);
}
.field-block input:focus {
  border-bottom-color: var(--accent);
}
.field-block input::placeholder {
  color: var(--ghost);
}

.ex-actions {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  width: 100%;
  justify-content: space-between;
  align-items: center;
}
.ex-actions button {
  background: none;
  border: none;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  cursor: pointer;
  padding: 10px 4px;
  transition: color 0.2s;
}
.ex-actions button:hover { color: var(--mid); }
#btn-same { color: var(--accent2); }
#btn-same:hover { color: var(--accent); }

/* ── CHECK SCREEN ── */
.check-area {
  width: 100%;
  flex: 1;
  max-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  margin-bottom: 24px;
}
.check-area:active {
  background: var(--ghost);
  border-color: var(--accent);
}
.check-tap {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--dim);
  text-transform: uppercase;
}
.check-area.done {
  background: var(--ghost);
  border-color: var(--accent2);
}
.check-area.done .check-tap {
  color: var(--accent);
  letter-spacing: 0.3em;
}

/* ── ROUND END ── */
.round-end-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  width: 100%;
}
.round-label {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--mid);
  text-transform: uppercase;
}

/* ── DONE SUMMARY ── */
.done-summary {
  font-size: 0.75rem;
  color: var(--dim);
  letter-spacing: 0.08em;
  line-height: 2;
  text-align: center;
  margin-bottom: 8px;
}

/* ── TYPE SELECT (editor) ── */
.type-select {
  background: var(--bg3);
  border: 1px solid var(--line);
  color: var(--mid);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  padding: 5px 6px;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  min-width: 52px;
  text-align: center;
}
.type-select:focus { border-color: var(--accent2); color: var(--accent); }

/* ── MODIFIER / BAND SELECTS (log) ── */
#input-modifier, #input-band1, #input-band2 {
  width: 100%;
  background: none;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-family: var(--mono);
  font-size: 1.6rem;
  font-weight: 300;
  padding: 8px 0;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  letter-spacing: 0.08em;
}
#input-modifier:focus { border-bottom-color: var(--accent); }

/* ── ARROW BUTTON ── */
#btn-next {
  color: var(--accent2) !important;
  font-size: 1rem !important;
  padding: 10px 8px !important;
}
#btn-next:hover { color: var(--accent) !important; }

/* ── INLINE BACK ARROW (mirrors next) ── */
#btn-back {
  font-size: 1rem;
  color: var(--accent2);
}
#btn-back:hover { color: var(--accent); }

/* ── ROUND-END BACK LINK ── */
.back-link {
  background: none;
  border: none;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  padding: 8px;
  transition: color 0.2s;
}
.back-link:hover { color: var(--mid); }


.hidden { display: none !important; }

/* ── PAGE HEADER (stats/editor/stretches) ── */
.page-wrap {
  min-height: 100dvh;
  background: var(--bg);
  padding: 70px 24px 48px;
}
.page-title {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--mid);
  text-transform: uppercase;
  margin-bottom: 32px;
}

/* ── STATS PAGE ── */
.exercise-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.ex-pill {
  background: none;
  border: 1px solid var(--line);
  color: var(--mid);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  padding: 7px 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.ex-pill.active {
  border-color: var(--accent2);
  color: var(--accent);
  background: var(--ghost);
}
.chart-wrap {
  width: 100%;
  height: 220px;
  position: relative;
  margin-bottom: 32px;
}
canvas#chart {
  width: 100% !important;
  height: 100% !important;
}
.history-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.history-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--mid);
  letter-spacing: 0.05em;
}
.history-row .h-date { color: var(--dim); font-size: 0.68rem; }
.history-row .h-val  { color: var(--text); }

/* ── EDITOR PAGE ── */
.pair-card {
  border: 1px solid var(--line);
  margin-bottom: 12px;
  padding: 16px;
}
.pair-label {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--dim);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.ex-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.ex-row input {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.9rem;
  padding: 6px 0;
  outline: none;
}
.ex-row input:focus { border-bottom-color: var(--accent); }
.type-toggle {
  background: none;
  border: 1px solid var(--line);
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  padding: 4px 8px;
  cursor: pointer;
  white-space: nowrap;
}
.type-toggle.check { border-color: var(--accent2); color: var(--accent2); }
.del-btn {
  background: none;
  border: none;
  color: var(--line);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px;
  transition: color 0.2s;
}
.del-btn:hover { color: var(--danger); }
.add-ex-btn, .add-pair-btn, .save-btn {
  background: none;
  border: 1px solid var(--line);
  color: var(--mid);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  padding: 10px 16px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 8px;
}
.add-ex-btn:hover, .add-pair-btn:hover { border-color: var(--accent2); color: var(--accent); }
.save-btn {
  width: 100%;
  margin-top: 24px;
  border-color: var(--accent2);
  color: var(--accent);
  padding: 16px;
}
.save-btn:hover { background: var(--ghost); }

/* ── STRETCHES PAGE ── */
.stretch-section {
  margin-bottom: 32px;
}
.stretch-section-title {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--accent2);
  text-transform: uppercase;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}
.stretch-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.stretch-name {
  font-size: 0.88rem;
  color: var(--text);
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}
.stretch-detail {
  font-size: 0.7rem;
  color: var(--mid);
  letter-spacing: 0.06em;
  line-height: 1.6;
}

/* ── TAPPABLE ROUND LABEL ── */
#ex-set-label, #check-set-label {
  cursor: default;
  transition: color 0.15s;
}
/* only warmup is tappable — JS handles the condition */
#ex-set-label:active, #check-set-label:active {
  color: var(--accent);
}

/* ── POPUP CLOSE BUTTON ── */
.popup-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 0.2s;
}
.popup-close:hover { color: var(--mid); }
.popup { position: relative; }

/* ── END BUTTON ── */
#end-btn {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: none;
  border: 1px solid var(--line);
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  padding: 10px 24px;
  cursor: pointer;
  z-index: 90;
  transition: all 0.2s;
}
#end-btn:hover { border-color: var(--danger); color: var(--danger); }

/* ── END POPUP ── */
.popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.popup {
  background: var(--bg2);
  border: 1px solid var(--line);
  padding: 32px 28px;
  width: 280px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.popup-label {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--mid);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.popup-btn-primary {
  width: 100%;
  padding: 14px;
  background: none;
  border: 1px solid var(--accent2);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background 0.2s;
}
.popup-btn-primary:hover { background: var(--ghost); }
.popup-btn-danger {
  width: 100%;
  padding: 14px;
  background: none;
  border: 1px solid var(--line);
  color: var(--danger);
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: border-color 0.2s;
}
.popup-btn-danger:hover { border-color: var(--danger); }
.popup-btn-cancel {
  background: none;
  border: none;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  padding: 8px;
  transition: color 0.2s;
  text-align: center;
}
.popup-btn-cancel:hover { color: var(--mid); }

/* ── DARK / LIGHT MODE ── */
body.light {
  --bg:      #f4f1ec;
  --bg2:     #ede9e2;
  --bg3:     #e4e0d8;
  --line:    #ccc9c0;
  --dim:     #aaa79e;
  --mid:     #777470;
  --text:    #1a1a18;
  --ghost:   #e0dbd0;
  --accent:  #8a6030;
  --accent2: #b08040;
  --danger:  #a03030;
}

/* ── THEME TOGGLE ── */
#theme-toggle {
  position: fixed;
  top: 16px;
  left: 18px;
  z-index: 100;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.toggle-track {
  width: 36px;
  height: 20px;
  border-radius: 10px;
  background: var(--line);
  position: relative;
  transition: background 0.25s;
  flex-shrink: 0;
  border: 1px solid var(--dim);
}
body.light .toggle-track { background: var(--accent2); border-color: var(--accent); }
.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--mid);
  transition: transform 0.25s, background 0.25s;
}
body.light .toggle-thumb { transform: translateX(16px); background: #fff; }
.toggle-icon {
  font-size: 0.75rem;
  color: var(--dim);
  user-select: none;
}

/* ── EXERCISE NAME TAPPABLE ── */
#ex-name, #check-name {
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s, color 0.15s;
}
#ex-name:active, #check-name:active { color: var(--accent); }

/* ── EDIT EXERCISE POPUP ── */
.popup-input {
  width: 100%;
  background: none;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-family: var(--mono);
  font-size: 1.1rem;
  padding: 8px 0;
  outline: none;
  margin-bottom: 16px;
  caret-color: var(--accent);
}
.popup-input:focus { border-bottom-color: var(--accent); }
.popup-type-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.popup-type-btn {
  background: none;
  border: 1px solid var(--line);
  color: var(--mid);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  padding: 7px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.popup-type-btn.selected {
  border-color: var(--accent2);
  color: var(--accent);
  background: var(--ghost);
}