:root {
  color-scheme: light;
  --bg: #f3f5f1;
  --surface: #ffffff;
  --surface-soft: #edf2ee;
  --surface-deep: #e4ebe6;
  --ink: #1e2923;
  --muted: #66736b;
  --line: #d6dfd8;
  --accent: #4f6f5b;
  --accent-strong: #365242;
  --accent-pale: #e1ebe4;
  --danger: #a95050;
  --danger-pale: #f7e8e6;
  --shadow: 0 18px 48px rgba(40, 61, 49, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: Inter, Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-variant-numeric: tabular-nums;
  background:
    radial-gradient(circle at 8% 3%, rgba(202, 220, 208, 0.55), transparent 31%),
    radial-gradient(circle at 92% 4%, rgba(231, 223, 205, 0.48), transparent 27%),
    linear-gradient(180deg, #f7f8f5 0%, var(--bg) 100%);
}
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.45; }
[hidden] { display: none !important; }

.vault-gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 18px;
}
.vault-gate-card {
  width: min(460px, 100%);
  padding: clamp(28px, 6vw, 46px);
  border: 1px solid rgba(93, 119, 102, 0.20);
  border-radius: 32px;
  background: rgba(255,255,255,0.92);
  box-shadow: 0 28px 80px rgba(39, 58, 47, 0.13);
  backdrop-filter: blur(16px);
}
.vault-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin-bottom: 26px;
  color: var(--accent-strong);
  border-radius: 18px;
  background: var(--accent-pale);
  border: 1px solid #cad9ce;
}
.vault-mark svg,
.icon-button svg,
.privacy-note svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.kicker,
.section-kicker {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.14em;
}
.vault-gate h1 {
  margin: 0;
  font-size: clamp(2.15rem, 8vw, 3.35rem);
  line-height: 1;
  letter-spacing: -0.055em;
}
.gate-description {
  margin: 16px 0 28px;
  color: var(--muted);
  line-height: 1.65;
}
.vault-form { display: grid; gap: 10px; }
.vault-form label,
.password-card label,
.settings-section > label {
  color: #415047;
  font-size: 0.86rem;
  font-weight: 700;
}
.password-field { position: relative; }
.password-field input { padding-right: 70px; }
.vault-form input,
.password-card input,
.settings-section input {
  width: 100%;
  min-height: 48px;
  padding: 11px 14px;
  color: var(--ink);
  border: 1px solid #cbd7ce;
  border-radius: 14px;
  background: #fbfcfa;
  outline: none;
}
.vault-form input:focus,
.password-card input:focus,
.settings-section input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(79,111,91,0.11);
}
.text-button {
  position: absolute;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  min-height: 34px;
  padding: 0 10px;
  border: 0;
  border-radius: 10px;
  color: var(--accent-strong);
  background: transparent;
  font-size: 0.82rem;
  font-weight: 700;
}
.password-confirm { display: grid; gap: 10px; }
.form-error { min-height: 20px; margin: 2px 0 0; color: var(--danger); font-size: 0.82rem; line-height: 1.5; }
.gate-primary,
.primary-action {
  min-height: 52px;
  border: 0;
  border-radius: 15px;
  color: white;
  background: var(--accent-strong);
  font-weight: 750;
  letter-spacing: -0.01em;
  box-shadow: 0 12px 26px rgba(54,82,66,0.18);
}
.gate-primary:hover,
.primary-action:hover { background: #2f493a; }
.gate-actions { display: grid; margin-top: 10px; }
.gate-secondary,
.secondary-button,
.quiet-button {
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--ink);
  background: #fff;
  font-weight: 680;
}
.gate-secondary:hover,
.secondary-button:hover,
.quiet-button:hover { background: var(--surface-soft); }
.security-copy {
  display: grid;
  gap: 5px;
  margin-top: 24px;
  padding: 16px;
  border-radius: 16px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}
.security-copy strong { color: #3e5145; }

.app-root { min-height: 100vh; }
.topbar {
  width: min(1180px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
}
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.storage-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 11px;
  color: var(--accent-strong);
  border: 1px solid #cddbd1;
  border-radius: 999px;
  background: rgba(255,255,255,0.76);
  font-size: 0.75rem;
  font-weight: 750;
}
.storage-chip[data-state="saving"] { color: #856628; background: #fff8dc; border-color: #eadca8; }
.storage-chip[data-state="error"] { color: var(--danger); background: var(--danger-pale); border-color: #e8c4c0; }
.icon-button {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: rgba(255,255,255,0.82);
}
.icon-button:hover { background: var(--surface-soft); }
.icon-button svg { width: 19px; height: 19px; }

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 12px 0 58px;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 14px;
  align-items: end;
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid rgba(102,128,111,0.18);
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, rgba(255,255,255,0.94), rgba(237,243,238,0.90));
  box-shadow: var(--shadow);
}
.hero h1 {
  margin: 0;
  font-size: clamp(2.45rem, 7vw, 5.2rem);
  line-height: 0.92;
  letter-spacing: -0.065em;
}
.hero-copy {
  max-width: 690px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.7;
}
.hero-status {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px;
  border: 1px solid #d5e1d8;
  border-radius: 18px;
  background: rgba(255,255,255,0.78);
}
.status-dot {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 5px;
  border-radius: 50%;
  background: #6d997c;
  box-shadow: 0 0 0 5px rgba(109,153,124,0.13);
}
.hero-status div { display: grid; gap: 5px; }
.hero-status strong { font-size: 0.92rem; }
.hero-status span { color: var(--muted); font-size: 0.8rem; line-height: 1.45; }

.dashboard-panel,
.session-card,
.live-summary-card,
.log-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.90);
  box-shadow: var(--shadow);
}
.dashboard-panel,
.log-panel { margin-top: 14px; padding: clamp(20px, 4vw, 30px); }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.section-heading h2 { margin: 0; font-size: 1.35rem; letter-spacing: -0.04em; }
.section-heading.compact { align-items: flex-start; }
.period-tabs {
  display: inline-grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 4px;
  border-radius: 13px;
  background: var(--surface-soft);
}
.period-tab {
  min-width: 58px;
  min-height: 34px;
  padding: 6px 12px;
  border: 0;
  border-radius: 10px;
  color: var(--muted);
  background: transparent;
  font-size: 0.82rem;
  font-weight: 700;
}
.period-tab.is-active { color: var(--accent-strong); background: white; box-shadow: 0 4px 12px rgba(48,73,57,0.08); }
.period-row { display: flex; align-items: center; justify-content: center; gap: 18px; margin: 24px 0 18px; text-align: center; }
.period-row div { min-width: 190px; display: grid; gap: 3px; }
.period-row strong { font-size: 1rem; }
.period-row span { color: var(--muted); font-size: 0.76rem; }
.period-arrow {
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: white;
  font-size: 1.35rem;
}
.metric-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
.metric-card {
  min-height: 112px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid #e0e7e2;
  border-radius: 18px;
  background: #fbfcfa;
}
.metric-card.emphasis { background: var(--accent-pale); border-color: #cbdacf; }
.metric-label { color: var(--muted); font-size: 0.74rem; }
.metric-card strong { margin-top: 10px; font-size: 1.7rem; letter-spacing: -0.04em; }
.metric-card small { color: var(--muted); font-size: 0.72rem; }
.trend-card {
  display: grid;
  grid-template-columns: minmax(160px, 0.28fr) minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  margin-top: 14px;
  padding: 16px 18px;
  border-radius: 18px;
  background: var(--surface-soft);
}
.trend-copy { display: grid; gap: 6px; }
.trend-copy span { color: var(--muted); font-size: 0.76rem; }
.trend-copy strong { font-size: 0.9rem; line-height: 1.45; }
#trendCanvas { width: 100%; height: 132px; display: block; }

.tracker-layout { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr); gap: 14px; margin-top: 14px; }
.session-card,
.live-summary-card { padding: clamp(20px, 4vw, 30px); }
.session-topline { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.session-topline h2 { margin: 0; font-size: 1.35rem; letter-spacing: -0.04em; }
.session-id { max-width: 210px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 7px 10px; border-radius: 999px; color: var(--muted); background: var(--surface-soft); font-size: 0.72rem; }
.session-clock-wrap { display: grid; justify-items: center; gap: 5px; margin: 22px 0; padding: 22px; border-radius: 20px; background: #f8faf7; border: 1px solid #e2e8e3; }
.session-clock-wrap span,
.session-clock-wrap small { color: var(--muted); font-size: 0.72rem; }
.session-clock-wrap strong { font-size: clamp(2rem, 8vw, 3.45rem); line-height: 1; letter-spacing: -0.05em; }
.control-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.value-control { padding: 18px; border: 1px solid #dce5de; border-radius: 20px; background: #fcfdfb; }
.control-title-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.control-title-row > div { display: grid; gap: 3px; }
.control-title-row span { font-weight: 750; }
.control-title-row small,
.sub-value { color: var(--muted); font-size: 0.75rem; }
.stepper { display: grid; grid-template-columns: 52px minmax(80px,1fr) 52px; gap: 10px; align-items: center; margin-top: 18px; }
.step-button { height: 52px; border: 1px solid #cfdad2; border-radius: 15px; color: var(--accent-strong); background: var(--accent-pale); font-size: 1.45rem; font-weight: 500; touch-action: manipulation; }
.step-button:active { transform: scale(0.97); }
.stepper output { text-align: center; font-size: clamp(1.75rem, 5vw, 2.6rem); font-weight: 760; letter-spacing: -0.05em; }
.stability-panel { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 10px 16px; align-items: center; margin-top: 14px; padding: 16px; border-radius: 18px; background: var(--surface-soft); }
.stability-copy { display: grid; gap: 4px; }
.stability-copy strong { font-size: 0.88rem; }
.stability-copy span { color: var(--muted); font-size: 0.76rem; line-height: 1.45; }
.stability-track { grid-column: 1 / -1; height: 6px; overflow: hidden; border-radius: 999px; background: #d9e2dc; }
.stability-track span { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--accent); transition: width 160ms linear; }
.stability-seconds { color: var(--accent-strong); font-size: 0.75rem; font-weight: 750; }
.session-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.danger-action { min-height: 52px; border: 1px solid #e4c7c4; border-radius: 15px; color: var(--danger); background: var(--danger-pale); font-weight: 750; }
.session-rule { margin: 14px 0 0; color: var(--muted); font-size: 0.76rem; line-height: 1.55; }
.summary-list { margin: 22px 0; display: grid; gap: 0; }
.summary-list div { display: flex; justify-content: space-between; gap: 18px; padding: 14px 0; border-bottom: 1px solid #e4e9e5; }
.summary-list dt { color: var(--muted); font-size: 0.82rem; }
.summary-list dd { margin: 0; font-size: 0.86rem; font-weight: 750; }
.privacy-note { display: flex; gap: 12px; padding: 15px; border-radius: 17px; background: var(--accent-pale); color: var(--accent-strong); }
.privacy-note svg { flex: 0 0 auto; width: 21px; height: 21px; }
.privacy-note div { display: grid; gap: 4px; }
.privacy-note strong { font-size: 0.8rem; }
.privacy-note span { color: #607669; font-size: 0.72rem; line-height: 1.4; }

.log-heading p { margin: 5px 0 0; color: var(--muted); font-size: 0.78rem; }
.log-actions { display: flex; gap: 8px; }
.table-wrap { position: relative; margin-top: 18px; overflow-x: auto; }
table { width: 100%; min-width: 850px; border-collapse: collapse; }
th, td { padding: 13px 12px; border-bottom: 1px solid #e3e9e4; text-align: left; font-size: 0.78rem; white-space: nowrap; }
th { color: var(--muted); font-size: 0.7rem; font-weight: 750; background: #f8faf8; }
td strong { color: var(--accent-strong); }
.empty-log { min-height: 128px; display: grid; place-items: center; align-content: center; gap: 7px; color: var(--muted); text-align: center; }
.empty-log strong { color: #4b5c51; font-size: 0.9rem; }
.empty-log span { font-size: 0.78rem; }

.settings-dialog,
.password-dialog { width: min(560px, calc(100% - 28px)); max-height: calc(100vh - 28px); padding: 0; border: 0; border-radius: 24px; background: transparent; }
.settings-dialog::backdrop,
.password-dialog::backdrop { background: rgba(23,34,27,0.48); backdrop-filter: blur(5px); }
.settings-card,
.password-card { overflow: auto; max-height: calc(100vh - 28px); padding: 24px; border: 1px solid var(--line); border-radius: 24px; background: white; box-shadow: 0 28px 80px rgba(25,39,30,0.22); }
.settings-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.settings-header h2,
.password-card h2 { margin: 0; font-size: 1.4rem; letter-spacing: -0.04em; }
.settings-section { display: grid; gap: 9px; margin-top: 20px; }
.settings-section small { color: var(--muted); font-size: 0.75rem; line-height: 1.5; }
.suffix-field { position: relative; }
.suffix-field input { padding-right: 52px; }
.suffix-field span { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 0.78rem; }
.settings-actions-grid { grid-template-columns: 1fr 1fr; }
.danger-zone { padding: 16px; border: 1px solid #ebcfcc; border-radius: 17px; background: #fff9f8; }
.danger-zone strong { color: var(--danger); font-size: 0.86rem; }
.danger-zone span { color: #806260; font-size: 0.75rem; }
.danger-outline { min-height: 42px; border: 1px solid #dfb8b4; border-radius: 12px; color: var(--danger); background: white; font-weight: 700; }
.settings-footer { display: flex; justify-content: flex-end; margin-top: 22px; }
.compact-action { min-height: 44px; padding: 10px 20px; }
.password-card { display: grid; gap: 10px; }
.password-card > p { margin: 0 0 8px; color: var(--muted); font-size: 0.82rem; line-height: 1.5; }
#newPasswordFields { display: grid; gap: 10px; margin-top: 4px; }
.dialog-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin-top: 8px; }
.toast { position: fixed; left: 50%; bottom: 24px; z-index: 100; max-width: min(520px, calc(100% - 30px)); padding: 12px 16px; border-radius: 14px; color: white; background: #27382e; box-shadow: 0 16px 42px rgba(21,33,25,0.25); font-size: 0.82rem; opacity: 0; transform: translate(-50%, 12px); pointer-events: none; transition: opacity 180ms ease, transform 180ms ease; }
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 980px) {
  .hero, .tracker-layout { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .trend-card { grid-template-columns: 1fr; }
}
@media (max-width: 650px) {
  .topbar, .page-shell { width: min(100% - 18px, 1180px); }
  .topbar { min-height: 58px; }
  .storage-chip { display: none; }
  .hero { padding: 25px 20px; border-radius: 22px; }
  .hero h1 { font-size: 2.45rem; }
  .dashboard-panel, .session-card, .live-summary-card, .log-panel { border-radius: 21px; }
  .dashboard-heading, .log-heading { align-items: flex-start; flex-direction: column; }
  .period-tabs { width: 100%; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .metric-card { min-height: 104px; }
  .control-grid { grid-template-columns: 1fr; }
  .stepper { grid-template-columns: 56px 1fr 56px; }
  .session-actions { grid-template-columns: 1fr; }
  .log-actions { width: 100%; }
  .log-actions button { flex: 1; }
  .settings-actions-grid { grid-template-columns: 1fr; }
  .vault-gate-card { padding: 28px 22px; border-radius: 25px; }
}

/* Public shell + on-demand private record login */
.vault-gate {
  position: fixed;
  inset: 0;
  z-index: 80;
  min-height: 100vh;
  overflow-y: auto;
  background: rgba(27, 39, 32, 0.48);
  backdrop-filter: blur(8px);
}
.vault-gate-card { position: relative; }
.gate-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--muted);
  background: #fff;
  font-size: 1.35rem;
  line-height: 1;
}
.access-button {
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid #bfd0c4;
  border-radius: 999px;
  color: var(--accent-strong);
  background: var(--accent-pale);
  font-size: 0.78rem;
  font-weight: 780;
}
.storage-chip.is-locked {
  color: #6e746f;
  border-color: #d8ded9;
  background: #f5f7f5;
}
.app-root.is-locked .metric-card strong,
.app-root.is-locked .summary-list dd {
  color: #7b8880;
}
.app-root.is-locked .status-dot {
  background: #9ba79f;
  box-shadow: 0 0 0 5px rgba(155,167,159,.14);
}
.app-root.is-locked .step-button,
.app-root.is-locked .period-arrow,
.app-root.is-locked .period-tab,
.app-root.is-locked .quiet-button,
.app-root.is-locked .icon-button,
.app-root.is-locked .primary-action {
  position: relative;
}
.app-root.is-locked .dashboard-panel,
.app-root.is-locked .live-summary-card,
.app-root.is-locked .log-panel {
  border-color: #dde4df;
}

@media (max-width: 650px) {
  .access-button { padding: 8px 11px; font-size: 0.72rem; }
  .gate-close { top: 12px; right: 12px; }
}
body.modal-open { overflow: hidden; }

/* v4 · mobile-first workout flow */
.hero-badges {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 10px;
}
.hero-badges .kicker { margin: 0; }
.mobile-badge {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  padding: 5px 9px;
  border: 1px solid #c9d8ce;
  border-radius: 999px;
  color: var(--accent-strong);
  background: rgba(255,255,255,.72);
  font-size: .64rem;
  font-weight: 800;
  letter-spacing: .1em;
}

.workout-stage {
  display: grid;
  grid-template-columns: minmax(350px, .88fr) minmax(0, 1.12fr);
  grid-template-areas:
    "controller log"
    "controller summary";
  gap: 14px;
  margin-top: 14px;
  align-items: start;
}
.workout-stage > .session-card { grid-area: controller; }
.workout-stage > .log-panel { grid-area: log; margin-top: 0; min-width: 0; }
.workout-stage > .live-summary-card { grid-area: summary; }

.start-action {
  width: 100%;
  min-height: 58px;
  margin-top: 14px;
  font-size: .92rem;
  letter-spacing: .035em;
}
.stop-action {
  width: 100%;
  min-height: 56px;
  margin-top: 18px;
  font-size: .9rem;
  letter-spacing: .025em;
}

.incline-control {
  border-color: #d8e1d9;
  background: linear-gradient(155deg, #fcfdfb, #f2f6f2);
}
.speed-control {
  border-color: #d9e0e6;
  background: linear-gradient(155deg, #fcfdfb, #f3f6f8);
}
.value-control .stepper output {
  min-width: 0;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
}

.log-live-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}
.log-live-strip > div {
  min-height: 76px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 16px;
  border: 1px solid #dae4dc;
  border-radius: 17px;
  background: var(--accent-pale);
}
.log-live-strip span {
  color: var(--muted);
  font-size: .72rem;
}
.log-live-strip strong {
  color: var(--accent-strong);
  font-size: 1.32rem;
  letter-spacing: -.035em;
}
tr.is-pending td { background: #fffaf0; }
tr.is-pending td:last-child { color: #8a6c2f; font-weight: 750; }

.live-summary-card .summary-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 22px;
}
.live-summary-card .summary-list div:last-child { grid-column: 1 / -1; }

.dashboard-panel { margin-top: 14px; }

@media (max-width: 1080px) {
  .workout-stage {
    grid-template-columns: minmax(330px, .78fr) minmax(0, 1.22fr);
  }
  .control-grid { grid-template-columns: 1fr; }
  .live-summary-card .summary-list { grid-template-columns: 1fr; }
  .live-summary-card .summary-list div:last-child { grid-column: auto; }
}

@media (max-width: 820px) {
  .workout-stage {
    grid-template-columns: 1fr;
    grid-template-areas:
      "controller"
      "log"
      "summary";
  }
  .control-grid { grid-template-columns: 1fr 1fr; }
  .live-summary-card .summary-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .live-summary-card .summary-list div:last-child { grid-column: 1 / -1; }
}

@media (max-width: 650px) {
  body {
    background:
      radial-gradient(circle at 8% 0%, rgba(202,220,208,.45), transparent 30%),
      linear-gradient(180deg, #f8f9f6 0%, #f2f5f1 100%);
  }
  .topbar,
  .page-shell { width: min(100% - 14px, 1180px); }
  .page-shell { padding-top: 7px; padding-bottom: 34px; }
  .topbar-actions { gap: 6px; }
  .hero {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 22px 18px;
  }
  .hero h1 {
    max-width: 310px;
    font-size: clamp(2.18rem, 12vw, 3rem);
    line-height: .96;
  }
  .hero-copy {
    margin-top: 14px;
    font-size: .88rem;
    line-height: 1.62;
  }
  .hero-status { padding: 14px; }
  .mobile-badge { font-size: .6rem; }

  .session-card,
  .log-panel,
  .live-summary-card,
  .dashboard-panel {
    padding: 18px 15px;
    border-radius: 20px;
  }
  .session-topline { align-items: center; }
  .session-id { max-width: 42vw; }
  .session-clock-wrap {
    margin: 16px 0;
    padding: 18px 12px;
  }
  .session-clock-wrap strong { font-size: clamp(2.35rem, 14vw, 3.35rem); }

  .control-grid { grid-template-columns: 1fr; gap: 10px; }
  .value-control { padding: 16px 14px; border-radius: 18px; }
  .stepper {
    grid-template-columns: 64px minmax(0, 1fr) 64px;
    gap: 9px;
    margin-top: 14px;
  }
  .step-button {
    height: 62px;
    border-radius: 17px;
    font-size: 1.7rem;
  }
  .value-control .stepper output { font-size: clamp(2.65rem, 15vw, 3.55rem); }
  .stability-panel { margin-top: 11px; padding: 14px; }
  .start-action,
  .stop-action { min-height: 58px; }

  .log-heading { gap: 12px; }
  .log-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .log-live-strip { margin-top: 14px; gap: 8px; }
  .log-live-strip > div { min-height: 72px; padding: 12px; }
  .log-live-strip strong { font-size: 1.15rem; }

  .table-wrap { overflow: visible; }
  table,
  tbody,
  tr,
  td { display: block; width: 100%; min-width: 0; }
  thead { display: none; }
  tbody { display: grid; gap: 10px; }
  tbody tr {
    padding: 12px 13px;
    border: 1px solid #dde6df;
    border-radius: 16px;
    background: #fbfcfa;
  }
  tbody tr.is-pending { border-color: #ead9ae; background: #fffaf0; }
  tbody td {
    min-height: 31px;
    display: grid;
    grid-template-columns: minmax(92px, .8fr) minmax(0, 1.2fr);
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    border-bottom: 1px dashed #e3e9e4;
    text-align: right;
    white-space: normal;
    font-size: .79rem;
  }
  tbody td:last-child { border-bottom: 0; }
  tbody td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: .69rem;
    font-weight: 740;
    text-align: left;
  }
  .empty-log { min-height: 120px; }

  .live-summary-card .summary-list { grid-template-columns: 1fr; margin: 14px 0; }
  .live-summary-card .summary-list div:last-child { grid-column: auto; }
  .summary-list div { padding: 12px 0; }

  .dashboard-heading { gap: 14px; }
  .period-row { margin: 18px 0 14px; }
  .metric-grid { gap: 8px; }
  .metric-card { min-height: 96px; padding: 13px; border-radius: 16px; }
  .metric-card strong { font-size: 1.45rem; }
  .trend-card { padding: 14px; }

  .toast { bottom: max(14px, env(safe-area-inset-bottom)); }
}

@media (min-width: 651px) and (max-width: 820px) {
  .session-card,
  .log-panel,
  .live-summary-card,
  .dashboard-panel { padding: 24px; }
}

/* v6 · My Portal palette + previous-session comparison */
:root {
  --bg: #fff8f3;
  --surface: rgba(255, 255, 255, 0.80);
  --surface-soft: rgba(248, 244, 255, 0.86);
  --surface-deep: #eee9fb;
  --ink: #253044;
  --muted: #6b7280;
  --line: rgba(120, 144, 180, 0.22);
  --accent: #8f79dc;
  --accent-strong: #6f59c5;
  --accent-pale: #f0ebff;
  --pink: #ff8fc7;
  --pink-strong: #ef6db1;
  --blue: #8bd7ff;
  --blue-strong: #5eb9ea;
  --danger: #d84f78;
  --danger-pale: #fff0f5;
  --shadow: 0 18px 42px rgba(94, 120, 160, 0.16);
}

body {
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 3%, rgba(255, 211, 235, 0.60), transparent 31%),
    radial-gradient(circle at 91% 5%, rgba(139, 215, 255, 0.46), transparent 29%),
    radial-gradient(circle at 50% 100%, rgba(199, 183, 255, 0.32), transparent 35%),
    linear-gradient(135deg, #fff7ec 0%, #eef8ff 48%, #f8f0ff 100%);
}

.vault-gate-card,
.hero,
.dashboard-panel,
.session-card,
.live-summary-card,
.log-panel,
.settings-card,
.password-card {
  border-color: var(--line);
  background: rgba(255,255,255,0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.hero {
  background:
    radial-gradient(circle at 92% 12%, rgba(139,215,255,.30), transparent 30%),
    radial-gradient(circle at 8% 100%, rgba(255,143,199,.22), transparent 34%),
    rgba(255,255,255,.74);
}

.kicker,
.section-kicker { color: #8068ce; }

.mobile-badge,
.storage-chip,
.access-button {
  color: #6f59c5;
  border-color: rgba(143,121,220,.30);
  background: rgba(240,235,255,.82);
}

.gate-primary,
.primary-action {
  background: linear-gradient(135deg, var(--pink), #b993ff);
  box-shadow: 0 12px 28px rgba(202, 104, 178, 0.24);
}
.gate-primary:hover,
.primary-action:hover { background: linear-gradient(135deg, #ff79ba, #a982f1); }

.danger-action {
  color: #c4416c;
  border-color: rgba(216,79,120,.28);
  background: linear-gradient(135deg, #fff1f6, #f8edff);
}

.incline-control {
  border-color: rgba(255,143,199,.32);
  background: linear-gradient(155deg, rgba(255,255,255,.94), rgba(255,237,247,.90));
}
.speed-control {
  border-color: rgba(139,215,255,.38);
  background: linear-gradient(155deg, rgba(255,255,255,.94), rgba(236,248,255,.92));
}
.incline-control .step-button {
  color: #c64f8e;
  border-color: rgba(255,143,199,.32);
  background: rgba(255,227,242,.92);
}
.speed-control .step-button {
  color: #397ea7;
  border-color: rgba(139,215,255,.42);
  background: rgba(226,245,255,.94);
}

.session-clock-wrap,
.metric-card,
tbody tr {
  border-color: rgba(120,144,180,.18);
  background: rgba(255,255,255,.68);
}
.metric-card.emphasis,
.privacy-note,
.log-live-strip > div {
  border-color: rgba(143,121,220,.25);
  background: linear-gradient(145deg, rgba(255,237,247,.82), rgba(238,243,255,.88));
}
.log-live-strip strong,
.privacy-note,
td strong { color: #6f59c5; }

.stability-panel,
.trend-card,
.period-tabs {
  background: rgba(244,240,255,.76);
}
.stability-track { background: rgba(143,121,220,.15); }
.stability-track span { background: linear-gradient(90deg, var(--pink), var(--blue), var(--accent)); }
.period-tab.is-active {
  color: #6f59c5;
  background: rgba(255,255,255,.92);
  box-shadow: 0 5px 14px rgba(94,120,160,.12);
}

.previous-session-comparison {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid rgba(120,144,180,.20);
  border-radius: 20px;
  background:
    linear-gradient(135deg, rgba(255,239,247,.80), rgba(237,247,255,.82) 52%, rgba(242,237,255,.82));
}
.previous-comparison-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}
.previous-comparison-heading > div { display: grid; gap: 4px; }
.previous-comparison-heading span {
  color: #8068ce;
  font-size: .66rem;
  font-weight: 820;
  letter-spacing: .12em;
}
.previous-comparison-heading strong {
  font-size: .98rem;
  letter-spacing: -.025em;
}
.previous-comparison-heading small {
  max-width: 54%;
  color: var(--muted);
  font-size: .70rem;
  line-height: 1.45;
  text-align: right;
}
.previous-comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.previous-comparison-grid > div {
  min-height: 68px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 12px;
  border: 1px solid rgba(120,144,180,.18);
  border-radius: 14px;
  background: rgba(255,255,255,.68);
}
.previous-comparison-grid span {
  color: var(--muted);
  font-size: .68rem;
}
.previous-comparison-grid strong {
  color: #4d5670;
  font-size: .92rem;
  line-height: 1.25;
  letter-spacing: -.025em;
}
.current-session-strip-label {
  margin-top: 16px;
  color: #8068ce;
  font-size: .70rem;
  font-weight: 800;
  letter-spacing: .08em;
}
.log-live-strip { margin-top: 7px; }

.fixed-value-field input {
  color: #6f59c5;
  background: rgba(244,240,255,.72);
  cursor: default;
}

#trendCanvas { border-radius: 14px; }
.toast { background: #4e456d; }

@media (max-width: 820px) {
  .previous-comparison-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 650px) {
  body {
    background:
      radial-gradient(circle at 2% 0%, rgba(255,211,235,.55), transparent 31%),
      radial-gradient(circle at 98% 4%, rgba(139,215,255,.40), transparent 29%),
      linear-gradient(160deg, #fff8ee 0%, #eef8ff 54%, #f7f0ff 100%);
  }
  .previous-session-comparison { padding: 13px; border-radius: 17px; }
  .previous-comparison-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
  .previous-comparison-heading small {
    max-width: none;
    text-align: left;
  }
  .previous-comparison-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .previous-comparison-grid > div { min-height: 64px; padding: 10px; }
  .previous-comparison-grid > div:last-child { grid-column: 1 / -1; }
  .previous-comparison-grid strong { font-size: .86rem; }
  .log-live-strip > div { min-height: 76px; }
}


/* v5 · stable responsive table + vertical treadmill controls */
.workout-stage {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 14px;
}
.workout-stage > .session-card,
.workout-stage > .log-panel,
.workout-stage > .live-summary-card {
  width: 100%;
  min-width: 0;
  margin-top: 0;
}

.hero-copy {
  max-width: 420px;
  margin-top: 12px;
  font-size: .96rem;
  font-weight: 650;
  line-height: 1.5;
}

.control-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.value-control {
  min-width: 0;
  padding: 20px;
}
.vertical-stepper {
  grid-template-columns: 1fr;
  grid-template-rows: 58px minmax(82px, auto) 58px;
  gap: 10px;
  margin-top: 16px;
}
.vertical-stepper .step-button {
  width: 100%;
  height: 58px;
  border-radius: 16px;
  font-size: 1.7rem;
  font-weight: 650;
}
.vertical-stepper output {
  min-height: 82px;
  display: grid;
  place-items: center;
  padding: 8px 4px;
  border: 1px solid rgba(120,144,180,.16);
  border-radius: 18px;
  background: rgba(255,255,255,.72);
  font-size: clamp(2.6rem, 7vw, 4rem);
  line-height: 1;
}
.vertical-stepper .step-increase { order: 1; }
.vertical-stepper output { order: 2; }
.vertical-stepper .step-decrease { order: 3; }

.table-wrap {
  position: relative;
  margin-top: 18px;
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid rgba(120,144,180,.18);
  border-radius: 16px;
  background: rgba(255,255,255,.58);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.table-wrap table {
  display: table;
  width: 100%;
  min-width: 820px;
  border-collapse: separate;
  border-spacing: 0;
}
.table-wrap thead { display: table-header-group; }
.table-wrap tbody { display: table-row-group; }
.table-wrap tr { display: table-row; }
.table-wrap th,
.table-wrap td {
  display: table-cell;
  width: auto;
  min-width: 0;
  padding: 12px 11px;
  border-bottom: 1px solid rgba(120,144,180,.16);
  text-align: center;
  white-space: nowrap;
  font-size: .76rem;
}
.table-wrap th {
  position: sticky;
  top: 0;
  z-index: 3;
  color: #667085;
  background: rgba(248,247,253,.98);
  font-size: .68rem;
  letter-spacing: .015em;
}
.table-wrap th:first-child,
.table-wrap td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  min-width: 56px;
  font-weight: 800;
  background: rgba(252,251,255,.98);
  box-shadow: 1px 0 0 rgba(120,144,180,.16);
}
.table-wrap th:first-child { z-index: 4; }
.table-wrap th:nth-child(2),
.table-wrap td:nth-child(2) {
  min-width: 94px;
  color: #6f59c5;
}
.table-wrap th:nth-child(3),
.table-wrap td:nth-child(3) { min-width: 90px; }
.table-wrap th:nth-child(4),
.table-wrap td:nth-child(4) { min-width: 70px; }
.table-wrap th:nth-child(5),
.table-wrap td:nth-child(5) { min-width: 88px; }
.table-wrap tbody tr:nth-child(even) td { background-color: rgba(247,249,255,.50); }
.table-wrap tbody tr.is-pending td { background-color: #fffaf0; }
.table-wrap tbody tr:last-child td { border-bottom: 0; }
.table-wrap td::before { content: none !important; }

@media (min-width: 900px) {
  .session-card,
  .log-panel,
  .live-summary-card,
  .dashboard-panel { padding: 28px 30px; }
  .session-card { display: grid; grid-template-columns: minmax(240px, .48fr) minmax(0, 1.52fr); column-gap: 24px; }
  .session-topline,
  .session-clock-wrap,
  .stability-panel,
  .start-action,
  .session-rule { grid-column: 1; }
  .control-grid { grid-column: 2; grid-row: 1 / span 6; align-self: stretch; }
  .session-clock-wrap { margin: 18px 0; }
  .start-action { align-self: end; }
  .log-panel { min-height: 420px; }
  .live-summary-card .summary-list { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
  .live-summary-card .summary-list div,
  .live-summary-card .summary-list div:last-child {
    grid-column: auto;
    min-height: 74px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 13px 14px;
    border: 1px solid rgba(120,144,180,.16);
    border-radius: 14px;
    background: rgba(255,255,255,.66);
  }
  .privacy-note { margin-top: 14px; }
}

@media (max-width: 650px) {
  .hero-copy { margin-top: 10px; font-size: .86rem; line-height: 1.45; }
  .control-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .value-control { padding: 13px 10px; border-radius: 17px; }
  .control-title-row { min-height: 46px; align-items: flex-start; flex-direction: column; gap: 4px; }
  .control-title-row > .sub-value { max-width: 100%; font-size: .66rem; }
  .vertical-stepper {
    grid-template-columns: 1fr;
    grid-template-rows: 52px minmax(70px, auto) 52px;
    gap: 7px;
    margin-top: 10px;
  }
  .vertical-stepper .step-button {
    width: 100%;
    height: 52px;
    border-radius: 14px;
    font-size: 1.55rem;
  }
  .vertical-stepper output {
    min-height: 70px;
    padding: 5px 2px;
    border-radius: 15px;
    font-size: clamp(2.15rem, 11vw, 3rem);
  }
  .table-wrap {
    overflow-x: auto;
    overflow-y: hidden;
    margin-right: -4px;
    border-radius: 14px;
  }
  .table-wrap table,
  .table-wrap thead,
  .table-wrap tbody,
  .table-wrap tr,
  .table-wrap th,
  .table-wrap td {
    display: revert;
    width: auto;
  }
  .table-wrap table { display: table; min-width: 760px; }
  .table-wrap thead { display: table-header-group; }
  .table-wrap tbody { display: table-row-group; }
  .table-wrap tr { display: table-row; padding: 0; border: 0; border-radius: 0; background: transparent; }
  .table-wrap th,
  .table-wrap td {
    display: table-cell;
    min-height: 0;
    padding: 10px 8px;
    border-bottom: 1px solid rgba(120,144,180,.16);
    text-align: center;
    white-space: nowrap;
    font-size: .71rem;
  }
  .table-wrap td::before { display: none; }
  .table-wrap th:first-child,
  .table-wrap td:first-child { min-width: 52px; }
  .table-wrap th:nth-child(2),
  .table-wrap td:nth-child(2) { min-width: 88px; }
  .empty-log { min-width: 0; }
}