/* KUROHYŌ TRAINING — Tracker. Stage 1. Restrained premium: black & gold. */

/* ---------- Tokens ---------- */
:root {
  --bg: #0b0b0c;
  --surface: #141416;
  --surface-raised: #1b1b1e;
  --gold: #c8a24a;
  --gold-dim: #a8853a;
  --text: #f2f2f2;
  --muted: #9a9a9a;
  --error: #e06c60;
  --success: #7fbf7a;
  --line: #2a2a2e;
  --radius: 10px;
  --touch: 48px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Layout ---------- */
.page {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 40px 20px calc(32px + env(safe-area-inset-bottom));
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

/* ---------- Brand ---------- */
.brand-header {
  text-align: center;
  margin: 24px 0 32px;
}

.brand-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.brand-title--sm { font-size: 1.05rem; letter-spacing: 0.18em; }

.brand-sub {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px 20px;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.card p { margin: 0 0 16px; }
.card p:last-child { margin-bottom: 0; }

/* ---------- Forms ---------- */
.view { margin: 0; }

.field {
  display: block;
  margin-bottom: 16px;
}

.field span {
  display: block;
  margin-bottom: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
}

input[type="email"],
input[type="password"],
input[type="text"] {
  width: 100%;
  min-height: var(--touch);
  padding: 12px 14px;
  font-size: 1rem;
  color: var(--text);
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
}

input::placeholder { color: #6b6b6e; }

input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200, 162, 74, 0.25);
}

/* ---------- Buttons ---------- */
.btn {
  display: block;
  width: 100%;
  min-height: var(--touch);
  padding: 13px 16px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.btn-primary {
  background: var(--gold);
  color: #0b0b0c;
}

.btn-primary:hover { background: var(--gold-dim); }
.btn-primary:active { background: var(--gold-dim); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

.btn-sm {
  width: auto;
  min-height: 44px;
  padding: 8px 14px;
  font-size: 0.9rem;
}

/* ---------- Text helpers ---------- */
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

.form-error {
  margin: 12px 0 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: rgba(224, 108, 96, 0.08);
  border: 1px solid rgba(224, 108, 96, 0.4);
  color: var(--error);
  font-size: 0.92rem;
}

.form-success {
  margin: 12px 0 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: rgba(127, 191, 122, 0.08);
  border: 1px solid rgba(127, 191, 122, 0.4);
  color: var(--success);
  font-size: 0.92rem;
}

.notice {
  margin: 0 0 20px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: rgba(200, 162, 74, 0.08);
  border: 1px solid rgba(200, 162, 74, 0.45);
  color: var(--gold);
  font-size: 0.92rem;
}
.notice-slot { margin-bottom: 4px; }

/* ---------- Divider ---------- */
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* ---------- Links ---------- */
.link-row { margin: 16px 0 0; text-align: center; }

.link {
  background: none;
  border: none;
  padding: 10px 8px;              /* generous tap area */
  min-height: 44px;
  color: var(--gold);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- App shell ---------- */
.app-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}

.app-bar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-name {
  font-size: 0.92rem;
  color: var(--muted);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.coming-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.coming-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.coming-list li:last-child { border-bottom: 1px solid var(--line); }

.coming-label {
  font-weight: 700;
  font-size: 1rem;
}

.coming-note {
  color: var(--muted);
  font-size: 0.88rem;
}

.stage-note { margin-top: 20px !important; }

/* ---------- Footer ---------- */
.foot {
  text-align: center;
  margin-top: 32px;
}

/* ---------- Larger screens ---------- */
@media (min-width: 560px) {
  .page { padding-top: 64px; }
}

/* ---------- Stage 2: client tracker ---------- */

/* Bottom tab bar */
.tab-bar {
  position: sticky;
  bottom: 0;
  display: flex;
  background: rgba(11, 11, 12, 0.96);
  border-top: 1px solid var(--line);
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
  margin: 24px -20px calc(-32px - env(safe-area-inset-bottom));
  z-index: 20;
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 10px 4px;
  min-height: 52px;
  cursor: pointer;
  border-top: 2px solid transparent;
}

.tab-btn[aria-selected="true"] {
  color: var(--gold);
  border-top-color: var(--gold);
}

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

/* Day picker */
.day-picker {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 16px 0;
}

.day-btn {
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  padding: 12px 10px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  min-height: var(--touch);
}

.day-btn[aria-pressed="true"] {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(200, 162, 74, 0.08);
}

/* Exercise cards */
.ex-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
}

.ex-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 4px;
}

.ex-name {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
}

.ex-target {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.ex-last {
  margin: 6px 0 0;
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 600;
}

.swap-note {
  margin: 6px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.swap-note strong { color: var(--gold); font-weight: 600; }

/* Set rows */
.set-row {
  display: grid;
  grid-template-columns: 64px 1fr 1fr 1fr 52px;
  gap: 8px;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--line);
}

.set-row:first-of-type { border-top: none; }

.set-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  text-align: center;
}

.set-badge {
  display: block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-top: 2px;
  color: var(--muted);
}
.set-badge.top { color: var(--gold); }

.set-row input {
  width: 100%;
  min-height: 44px;
  padding: 8px 6px;
  font-size: 0.95rem;
  text-align: center;
  color: var(--text);
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}

.set-row input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200, 162, 74, 0.25);
}

.set-row input:disabled {
  opacity: 0.55;
}

.set-log-btn {
  min-height: 44px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--gold);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
}

.set-log-btn:hover { border-color: var(--gold); }

.set-row.logged .set-log-btn {
  background: rgba(127, 191, 122, 0.12);
  border-color: rgba(127, 191, 122, 0.5);
  color: var(--success);
}

.set-labels {
  display: grid;
  grid-template-columns: 64px 1fr 1fr 1fr 52px;
  gap: 8px;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-align: center;
  padding: 4px 0 2px;
}

/* Dashboard */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 16px 0;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}

.stat .stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.2;
}

.stat .stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-top: 4px;
}

.lift-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
}

.lift-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}

.lift-name {
  font-weight: 700;
  font-size: 0.98rem;
}

.lift-delta {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--success);
  white-space: nowrap;
}
.lift-delta.neg { color: var(--error); }

.lift-detail {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.chart-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin: 16px 0;
}

.chart-wrap canvas {
  width: 100%;
  height: 160px;
  display: block;
}

.section-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 24px 0 12px;
}

/* Week / phase banner — top of the Log view. */
.week-banner {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  margin: 0 0 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}
.week-banner .wb-week { color: var(--gold); }
.week-banner .wb-sep { color: var(--muted); font-weight: 400; }
.week-banner .wb-phase { color: var(--text); font-weight: 600; }

/* History */
.session-item {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  padding: 14px 16px;
  margin-bottom: 10px;
  cursor: pointer;
  text-align: left;
  font-size: 1rem;
}

.session-item:hover { border-color: var(--gold); }

.session-item .s-date { font-weight: 700; }
.session-item .s-day { color: var(--muted); font-size: 0.85rem; }
.session-item .s-meta { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }

.hist-set {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 10px;
}

.hist-set-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.hist-set-name { font-weight: 700; font-size: 0.95rem; }
.hist-set-type {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.hist-set-fields {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.hist-set-fields label {
  display: block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.hist-set-fields input {
  width: 100%;
  min-height: 44px;
  margin-top: 4px;
  padding: 8px 6px;
  font-size: 0.95rem;
  text-align: center;
  color: var(--text);
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hist-set-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.btn-danger {
  background: transparent;
  color: var(--error);
  border: 1px solid rgba(224, 108, 96, 0.5);
}

/* Swap modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 50;
}

.modal {
  width: 100%;
  max-width: 480px;
  max-height: 70dvh;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-bottom: none;
  border-radius: 16px 16px 0 0;
  padding: 20px 20px calc(20px + env(safe-area-inset-bottom));
}

.modal h3 { margin: 0 0 4px; font-size: 1.05rem; }

.swap-opt {
  width: 100%;
  display: block;
  text-align: left;
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  padding: 14px;
  margin-top: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  min-height: var(--touch);
}

.swap-opt:hover { border-color: var(--gold); }

/* Guide */
.guide-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 16px;
}

.guide-block h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--gold);
}

.guide-block ol, .guide-block ul {
  margin: 10px 0;
  padding-left: 20px;
}

.guide-block li { margin-bottom: 8px; }

.guide-example {
  background: var(--surface-raised);
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
  padding: 12px 14px;
  margin: 12px 0;
  font-size: 0.92rem;
}

/* Misc */
.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 32px 16px;
}

.row-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.btn-inline { width: auto; flex: 1; }

/* ---------- Coach view (Stage 3) ---------- */
.coach-sub {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 0 0 16px;
}
.sub-btn {
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  padding: 10px 4px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  min-height: var(--touch);
}
.sub-btn.active {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(200, 162, 74, 0.08);
}
.btn-row {
  display: flex;
  gap: 8px;
  margin: 12px 0;
}
.btn-row .btn {
  margin-top: 0;
}
.coach-day-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 6px;
}
.coach-day-head h4 {
  margin: 0;
  font-size: 1rem;
}
.coach-day-btns {
  margin: 0;
  flex-shrink: 0;
}
.coach-ex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}
.coach-ex-btns {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}
.coach-ex-btns .btn-inline {
  flex: none;
  padding: 8px 10px;
  min-height: 0;
}
.coach-set-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}
.coach-set-row .btn-inline {
  flex: none;
  padding: 8px 10px;
  min-height: 0;
}
.coach-select {
  width: 100%;
  min-height: var(--touch);
  padding: 12px 14px;
  font-size: 1rem;
  color: var(--text);
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
}
.coach-select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200, 162, 74, 0.25);
}
.coach-search {
  margin: 12px 0 4px;
}

/* Client secret-link row (coach view). */
.link-row-flex { display: flex; gap: 8px; align-items: center; margin: 8px 0; }
.link-input {
  flex: 1; min-width: 0;
  background: #141416; border: 1px solid #2a2a2e; color: #e8e6e1;
  border-radius: 8px; padding: 10px 12px; font-size: 13px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}