/*
 * Runtime brand stylesheet (linked from app/layout.tsx as /theme.css?v=…).
 * Fonts load via app/globals.css. When changing tokens or component styles,
 * update globals.css the same way so Next’s bundle and the public sheet match.
 */

:root {
  --bg: #243038;
  --bg-elevated: #2e3942;
  --ink: #eef2f5;
  --muted: #9aa7b2;
  --accent: #7fb89a;
  --accent-hover: #95c9ad;
  --accent-ink: #141a1f;
  --line: #3a4650;
  --line-strong: #5a6774;
  --surface-soft: #29333c;
  --success: #5a9e78;
  --shadow: 0 0 0 transparent;
  --radius: 6px;
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --pad-x: clamp(1.25rem, 4vw, 3.5rem);
  --max: 68rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: var(--font-body);
  background-color: var(--bg);
  background-image:
    linear-gradient(180deg, #2a343c 0%, var(--bg) 45%, #1d252c 100%);
  background-attachment: fixed;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 0.65rem var(--pad-x);
  border-bottom: 1px solid var(--line);
  background: var(--bg-elevated);
  backdrop-filter: none;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.brand span {
  color: var(--accent);
}

.site-header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.65rem 1rem;
  min-width: 0;
  flex: 1;
}

.site-header-actions .btn {
  flex-shrink: 0;
}

.demo-banner {
  padding: 0.45rem var(--pad-x);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--accent) 12%, var(--bg-elevated));
  color: var(--text);
  font-size: 0.85rem;
  text-align: center;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}

nav a {
  position: relative;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease;
}

nav a:hover,
nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: transparent;
}

nav a:hover::after,
nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-footer {
  padding: 2.5rem var(--pad-x) 3rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
  margin-top: 2rem;
}

.page {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 1.35rem var(--pad-x) 1.5rem;
}

.page-header {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1.35rem;
}

.page-header-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
}

.page-header-row > div {
  display: grid;
  gap: 0.5rem;
  min-width: min(100%, 16rem);
  flex: 1;
}

.page-header h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.page-header p {
  margin: 0;
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.5;
}

.hero-landing {
  min-height: calc(100vh - 9rem);
  display: grid;
  align-content: center;
  gap: 1.25rem;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 3.5rem var(--pad-x) 3rem;
}

.hero-landing h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3rem, 9vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  max-width: 12ch;
}

.hero-landing p {
  margin: 0;
  max-width: 32rem;
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.55;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.35rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 120ms ease, background 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(0);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-primary:active:not(:disabled) {
  box-shadow: 0 0 0 2px rgba(179, 155, 207, 0.35);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

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

.btn-ghost:hover:not(:disabled) {
  border-color: var(--ink);
}

.app-toolbar {
  display: flex;
  justify-content: flex-end;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 1rem var(--pad-x) 0;
}

.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: none;
  padding: clamp(1.1rem, 2.5vw, 1.5rem);
  margin-bottom: 1.15rem;
}

.panel h2,
.panel h3 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.panel + .panel h2 {
  margin-top: 0;
}

.stack {
  display: grid;
  gap: 1.5rem;
}

.grid-form {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  align-items: end;
}

.grid-form .span-all {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  color: var(--ink);
  padding: 0.7rem 0.8rem;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(179, 155, 207, 0.35);
  outline-offset: 1px;
  border-color: var(--accent);
}

textarea {
  min-height: 6.5rem;
  resize: vertical;
  text-transform: none;
  font-weight: 400;
  letter-spacing: 0;
  font-size: 1rem;
  color: var(--ink);
}

.workout-list,
.progress-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.workout-list li,
.progress-list li {
  padding: 1rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.workout-list strong,
.progress-list strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.set-list {
  list-style: none;
  margin: 0.65rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.set-list li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  font-size: 0.92rem;
}

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

.error-text {
  color: #9b2c1a;
  font-size: 0.92rem;
  margin-top: 0.85rem;
}

.success-text {
  color: var(--success);
  font-size: 0.92rem;
}

.coach-out {
  white-space: pre-wrap;
  line-height: 1.55;
  color: var(--ink);
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.coach-chat {
  display: grid;
  gap: 1.25rem;
}

.coach-thread {
  display: grid;
  gap: 0.85rem;
  min-height: 12rem;
  max-height: min(50vh, 28rem);
  overflow-y: auto;
  padding: 0.25rem 0.15rem;
}

.coach-empty {
  padding: 0.5rem 0;
}

.coach-starters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.85rem;
}

.coach-bubble {
  max-width: min(100%, 36rem);
  padding: 0.75rem 0.95rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.coach-bubble-user {
  justify-self: end;
  background: var(--bg-elevated);
}

.coach-bubble-assistant {
  justify-self: start;
  background: var(--surface-soft);
}

.coach-bubble-pending {
  opacity: 0.75;
}

.coach-bubble-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.coach-bubble-body {
  white-space: pre-wrap;
  line-height: 1.55;
}

.coach-composer {
  display: grid;
  gap: 0.75rem;
}

.coach-composer-label {
  display: grid;
  gap: 0.4rem;
}

.coach-composer-actions {
  margin-top: 0;
}

.coach-prescription {
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
}

.rx-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.rx-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.rx-table th,
.rx-table td {
  text-align: left;
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.rx-table tr:last-child td {
  border-bottom: none;
}

.rx-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--surface-soft);
}

.auth-card {
  width: min(100%, 26rem);
}

.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 1.1rem;
}

.builder-hint {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.builder-exercise-list,
.builder-schedule-list {
  display: grid;
  gap: 1rem;
}

.builder-exercise-row,
.builder-schedule-row {
  margin-bottom: 0;
  padding: 1rem;
  background: var(--surface-soft);
}

.builder-row-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.builder-row-header .btn {
  margin: 0;
}

.split-two {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 900px) {
  .split-two {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-landing,
.page-header,
.panel {
  animation: rise 550ms ease both;
}

.panel:nth-of-type(2) {
  animation-delay: 80ms;
}

.panel:nth-of-type(3) {
  animation-delay: 140ms;
}

@media (max-width: 640px) {
  nav {
    font-size: 0.85rem;
    gap: 0.25rem 0.75rem;
  }
}

/* Header-integrated primary nav (single chrome bar) */
.app-nav {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.2rem 0.85rem;
  width: auto;
  margin: 0;
  padding: 0;
  border: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  font-size: 0.92rem;
}

.app-nav::-webkit-scrollbar {
  display: none;
}

.app-nav a {
  padding: 0.4rem 0;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  transition: color 140ms ease, border-color 140ms ease;
}

.app-nav a:hover {
  color: var(--ink);
  background: transparent;
}

.app-nav a.active,
.app-nav a[aria-current="page"] {
  color: var(--ink);
  background: transparent;
  border-color: transparent;
  border-bottom-color: var(--accent);
}

/* Build section secondary nav */
.build-nav {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.2rem 0.85rem;
  max-width: 52rem;
  margin: 0 auto;
  padding: 0.55rem 1.25rem 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  font-size: 0.88rem;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}

.build-nav::-webkit-scrollbar {
  display: none;
}

.build-nav a {
  padding: 0.35rem 0 0.55rem;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  transition: color 140ms ease, border-color 140ms ease;
}

.build-nav a:hover {
  color: var(--ink);
}

.build-nav a.active,
.build-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* Program cards */
.grid-cards {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 24rem), 1fr));
}

.program-card,
.template-card {
  display: grid;
  gap: 1rem;
}

.program-header,
.template-header {
  display: grid;
  gap: 0.5rem;
}

.program-header h2,
.template-header h2 {
  margin: 0;
  font-size: 1.35rem;
}

.program-meta,
.template-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--surface-soft);
  color: var(--muted);
  border: 1px solid var(--line);
}

.program-description,
.template-description {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.program-schedule {
  display: grid;
  gap: 0.75rem;
}

.program-schedule h3 {
  margin: 0.5rem 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  font-family: var(--font-body);
  letter-spacing: 0.03em;
}

.week-schedule {
  display: grid;
  gap: 0.5rem;
}

.week-schedule h4 {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
}

.day-grid {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
}

.day-item {
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-elevated);
}

.day-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.workout-name {
  font-size: 0.92rem;
  color: var(--ink);
}

.text-muted {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 0.5rem;
}

/* Template exercises */
.exercise-list {
  display: grid;
  gap: 0.65rem;
}

.exercise-list h3 {
  margin: 0.5rem 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  font-family: var(--font-body);
  letter-spacing: 0.03em;
}

.exercise-list ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.exercise-item {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-elevated);
  display: grid;
  gap: 0.35rem;
}

.exercise-name {
  font-weight: 600;
  color: var(--ink);
}

.exercise-prescription {
  font-size: 0.88rem;
  color: var(--muted);
}

.exercise-notes {
  font-size: 0.82rem;
  color: var(--muted);
  font-style: italic;
}

.template-actions {
  margin-top: 0.5rem;
}

/* Exercise catalog */
.exercise-catalog {
  display: grid;
  gap: 1.5rem;
}

.muscle-group-section {
  display: grid;
  gap: 0.75rem;
}

.muscle-group-title {
  font-size: 1.25rem;
  margin: 0;
}

.exercises-table {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.exercises-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.exercises-table th,
.exercises-table td {
  text-align: left;
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid var(--line);
}

.exercises-table tr:last-child td {
  border-bottom: none;
}

.exercises-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--surface-soft);
}

.exercises-table .exercise-name {
  font-weight: 500;
}

.exercises-table .exercise-notes {
  font-size: 0.88rem;
  color: var(--muted);
}

@media (max-width: 640px) {
  .site-header {
    flex-wrap: wrap;
    padding: 0.55rem var(--pad-x);
  }

  .site-header-actions {
    width: 100%;
    order: 3;
    justify-content: space-between;
    gap: 0.5rem;
  }

  .app-nav {
    gap: 0.15rem 0.7rem;
    flex: 1;
    min-width: 0;
  }

  .app-nav a {
    font-size: 0.86rem;
  }

  .build-nav {
    padding-left: var(--pad-x);
    padding-right: var(--pad-x);
    gap: 0.15rem 0.7rem;
  }

  .build-nav a {
    font-size: 0.84rem;
  }

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

/* Today + live session → Dashboard + live session */
.today-panel h2 {
  margin-bottom: 0.35rem;
}

.today-eyebrow {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.today-lead {
  margin: 0 0 1rem;
  color: var(--muted);
}

.today-exercise-preview {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.today-exercise-preview li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

/* Dashboard glance + Log history table */
.dashboard-glance-title {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
}

.dashboard-glance-grid {
  display: grid;
  gap: 1rem;
  margin: 0;
}

@media (min-width: 720px) {
  .dashboard-glance-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

.dashboard-glance-grid dt {
  margin: 0 0 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.dashboard-glance-grid dd {
  margin: 0;
}

.dashboard-log-link {
  margin: 1.1rem 0 0;
}

.history-table-wrap {
  overflow: auto;
  max-height: min(70vh, 40rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.history-table th,
.history-table td {
  text-align: left;
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.history-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--surface-soft);
}

.history-table tr:last-child td {
  border-bottom: none;
}

.history-table-row:hover td {
  background: var(--surface-soft);
}

.history-table-title {
  font-weight: 500;
}

.program-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(179, 155, 207, 0.25), var(--shadow);
}

.badge-active {
  background: rgba(179, 155, 207, 0.12);
  color: var(--accent);
  border-color: rgba(179, 155, 207, 0.35);
}

.btn-compact {
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
}

.workout-list-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  align-items: flex-start;
}

.set-list-editable {
  padding: 0.55rem !important;
  background: var(--bg-elevated) !important;
}

.set-edit-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.45rem;
  width: 100%;
  align-items: end;
}

.set-edit-label {
  font-size: 0.88rem;
  font-weight: 600;
}

.set-edit-field {
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.75rem;
}

@media (min-width: 640px) {
  .set-edit-form {
    grid-template-columns: minmax(7rem, 1.4fr) repeat(3, minmax(4.5rem, 5.5rem)) auto;
  }
}

.session-back {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.session-back a:hover {
  color: var(--ink);
}

.session-header h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
}

.session-msg {
  margin: 0 0 1rem;
}

.session-stack {
  display: grid;
  gap: 1.25rem;
}

.session-exercise-head h2 {
  margin-bottom: 0.25rem;
}

.session-exercise-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.session-exercise-title h2 {
  margin: 0 0 0.25rem;
}

.session-sets {
  list-style: none;
  margin: 0 0 0.85rem;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.session-set {
  display: flex;
  gap: 0.35rem;
  align-items: flex-start;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.session-set.done {
  border-color: rgba(47, 107, 79, 0.45);
  background: #2d3d34;
}

.session-set-form {
  display: grid;
  grid-template-columns: auto;
  gap: 0.5rem;
  flex: 1;
  align-items: end;
}

.session-set-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
  padding-bottom: 0.55rem;
}

.session-set-form label {
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.72rem;
}

.session-set-form input {
  min-height: 2.75rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
}

@media (min-width: 560px) {
  .session-set-form {
    grid-template-columns: 2.5rem repeat(3, minmax(4.5rem, 1fr)) auto;
  }
}

.session-complete {
  position: sticky;
  bottom: 0.75rem;
  margin: 1.5rem 0 0;
  padding: 0.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  justify-content: stretch;
  z-index: 5;
}

.session-complete .btn {
  width: 100%;
  min-height: 3.1rem;
  font-size: 1.05rem;
  box-shadow: none;
}

.session-complete .meta {
  text-align: center;
  margin: 0;
}

/* Analytics */
.metric-snapshot {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7.5rem, 1fr));
  gap: 1rem 1.25rem;
  margin: 0;
}

.metric-snapshot > div {
  display: grid;
  gap: 0.25rem;
}

.metric-snapshot dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.metric-snapshot dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.height-form {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.height-hint {
  margin: 0.65rem 0 0;
}

.trend-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 720px) {
  .trend-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.trend-grid h3 {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
}

.trend-chart {
  width: 100%;
}

.trend-chart-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.trend-axis {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.trend-area {
  fill: rgba(179, 155, 207, 0.12);
}

.trend-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
  animation: trend-draw 900ms ease forwards;
}

.trend-dot {
  fill: var(--bg-elevated);
  stroke: var(--accent);
  stroke-width: 2;
  transition: r 140ms ease;
}

.trend-dot:hover {
  r: 5;
}

.trend-label {
  fill: var(--muted);
  font-size: 11px;
  font-family: var(--font-body);
}

.trend-empty {
  margin: 0.5rem 0 0;
}

.history-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.body-history {
  margin-top: 1rem;
}

.lift-stats {
  margin: 1.25rem 0;
}

.bar-chart {
  width: 100%;
}

.bar-chart-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.bar-chart-bar {
  fill: var(--accent);
  opacity: 0.85;
  transition: opacity 140ms ease;
}

.bar-chart-bar:hover {
  opacity: 1;
}

.pr-board {
  list-style: none;
  margin: 1rem 0 1.5rem;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.pr-board-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 0.5rem 1rem;
  align-items: baseline;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.92rem;
}

.pr-board-row a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.pr-board-meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.sparkline-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

@media (min-width: 720px) {
  .sparkline-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.sparkline-grid h3 {
  margin: 0 0 0.45rem;
  font-size: 0.98rem;
}

.adherence-meta {
  margin: 0.5rem 0 1rem;
}

.section-help {
  margin: 0 0 1rem;
  max-width: 40rem;
}

.section-help summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  user-select: none;
}

.section-help summary::-webkit-details-marker {
  display: none;
}

.section-help summary::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 5px solid var(--muted);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform 140ms ease;
}

.section-help[open] summary::before {
  transform: rotate(90deg);
}

.section-help-body {
  margin-top: 0.55rem;
  padding: 0.75rem 0 0.15rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.section-help-body p {
  margin: 0 0 0.55rem;
}

.section-help-body p:last-child {
  margin-bottom: 0;
}

.exercise-picker {
  max-width: 22rem;
  margin-bottom: 0.5rem;
}

@keyframes trend-draw {
  to {
    stroke-dashoffset: 0;
  }
}

/* Developer status page */
.badge-ok {
  background: rgba(61, 155, 106, 0.16);
  color: var(--success);
  border-color: rgba(61, 155, 106, 0.4);
}

.badge-warn {
  background: rgba(200, 150, 40, 0.16);
  color: #e0b14a;
  border-color: rgba(200, 150, 40, 0.4);
}

.badge-error {
  background: rgba(200, 70, 70, 0.16);
  color: #e07070;
  border-color: rgba(200, 70, 70, 0.4);
}

.dev-status-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.75rem;
}

.dev-snapshot {
  margin: 0.5rem 0 1rem;
}

.dev-snapshot .dev-dd {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  word-break: break-word;
}

.dev-table {
  margin-top: 0.5rem;
}