:root {
  --bg: #0f1115;
  --surface: #171a21;
  --surface-2: #1f232c;
  --border: #2a2f3a;
  --text: #f2f3f5;
  --text-dim: #9aa1ac;
  --accent: #5eead4;
  --accent-strong: #2dd4bf;
  --danger: #f87171;
  --radius: 12px;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

a.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
}

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

.brand-icon {
  width: 15px;
  height: 26px;
  margin-right: 7px;
  color: var(--text);
  flex-shrink: 0;
}

nav.site a {
  color: var(--text-dim);
  text-decoration: none;
  margin-left: 20px;
  font-size: 14px;
}

nav.site a:hover {
  color: var(--text);
}

h1 {
  font-size: 32px;
  margin: 0 0 8px;
}

h2 {
  font-size: 20px;
  margin: 0 0 12px;
}

p.lede {
  color: var(--text-dim);
  font-size: 16px;
  margin: 0 0 32px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

.card-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 560px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.choice-card {
  display: block;
  text-decoration: none;
  color: inherit;
}

.choice-card h2 {
  color: var(--accent);
}

.choice-card p {
  color: var(--text-dim);
  margin: 0;
  font-size: 14px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin: 16px 0 6px;
}

label:first-of-type {
  margin-top: 0;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="password"],
input[type="date"],
input[type="datetime-local"],
textarea,
select {
  width: 100%;
  padding: 11px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
}

input[type="date"],
input[type="datetime-local"] {
  color-scheme: dark;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent-strong);
}

.radio-row {
  display: flex;
  gap: 16px;
  margin-top: 6px;
}

.radio-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 14px;
  margin: 0;
}

button,
.button {
  display: inline-block;
  background: var(--accent);
  color: #0b1512;
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 24px;
  text-decoration: none;
  text-align: center;
}

button:hover,
.button:hover {
  background: var(--accent-strong);
}

button:disabled {
  opacity: 0.5;
  cursor: default;
}

.button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.button.secondary:hover {
  background: var(--surface-2);
}

.status {
  margin-top: 20px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 14px;
  display: none;
}

.status.visible {
  display: block;
}

.status.info {
  background: rgba(94, 234, 212, 0.1);
  color: var(--accent);
  border: 1px solid rgba(94, 234, 212, 0.3);
}

.status.error {
  background: rgba(248, 113, 113, 0.1);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.3);
}

.pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}

.pill.ok {
  background: rgba(94, 234, 212, 0.15);
  color: var(--accent);
}

.pill.pending {
  background: rgba(250, 204, 21, 0.15);
  color: #facc15;
}

.coach-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
}

.coach-item .name {
  font-weight: 600;
}

.empty {
  color: var(--text-dim);
  font-size: 14px;
}

.back-link {
  display: inline-block;
  margin-top: 32px;
  color: var(--text-dim);
  font-size: 14px;
  text-decoration: none;
}

.back-link:hover {
  color: var(--text);
}

/* ---------------- Dashboards ---------------- */

.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}

.dash-header .who {
  text-align: right;
}

.dash-header .who .name {
  font-weight: 600;
  font-size: 14px;
}

.dash-header .who .role {
  font-size: 12px;
  color: var(--text-dim);
}

.dash-header .left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tab-bar {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  margin-top: 0;
}

.tab-btn:hover {
  background: var(--surface-2);
  color: var(--text);
}

.tab-btn.active {
  background: var(--accent);
  color: #0b1512;
}

.dash-main {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px;
}

.dash-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

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

.stat-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.stat-card {
  flex: 1;
  min-width: 130px;
}

.stat-card .num {
  font-size: 22px;
  font-weight: 700;
}

.stat-card .label {
  font-size: 12px;
  color: var(--text-dim);
}

/* Tier ladder */

.tier-ladder {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.tier-col {
  flex: 1;
  text-align: center;
  padding: 12px 6px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  cursor: pointer;
}

.tier-col.active {
  border-color: var(--accent-strong);
  background: rgba(94, 234, 212, 0.12);
}

.tier-col .label {
  font-weight: 700;
  font-size: 13px;
}

.tier-col .meta {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}

/* Data tables (sheets) */

.sheet-table-wrap {
  overflow-x: auto;
  margin: 10px 0;
}

table.sheet-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 480px;
}

table.sheet-table th {
  text-align: left;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table.sheet-table td {
  padding: 4px 6px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

table.sheet-table tfoot td {
  font-weight: 700;
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  border-bottom: none;
}

.cell-input {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  padding: 5px 6px;
  border-radius: 6px;
}

.cell-input:hover {
  border-color: var(--border);
}

.cell-input:focus {
  outline: none;
  border-color: var(--accent-strong);
  background: var(--surface-2);
}

.cell-num {
  width: 60px;
  text-align: center;
}

.readcell {
  font-weight: 600;
  color: var(--accent);
  font-size: 12px;
  white-space: nowrap;
}

/* Messages */

.msg-thread {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 380px;
  overflow-y: auto;
  padding: 12px;
  background: var(--surface-2);
  border-radius: 10px;
}

.bubble {
  max-width: 75%;
  padding: 9px 13px;
  border-radius: 14px;
  font-size: 14px;
}

.bubble.me {
  align-self: flex-end;
  background: var(--accent);
  color: #0b1512;
  border-bottom-right-radius: 2px;
}

.bubble.them {
  align-self: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom-left-radius: 2px;
}

.msg-compose {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.msg-compose input {
  flex: 1;
}

.thread-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 420px;
  overflow-y: auto;
}

.thread-list .thread-item {
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

.thread-list .thread-item.active {
  background: var(--surface-2);
  font-weight: 700;
}

/* Plus/minus stepper (e.g. pose photo counts) */

.stepper {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.stepper-btn {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  margin-top: 0;
  padding: 0;
}

.stepper-btn:hover:not(:disabled) {
  background: var(--surface);
  border-color: var(--accent-strong);
}

.stepper-count {
  min-width: 20px;
  text-align: center;
  font-weight: 700;
  font-size: 15px;
}

/* Full-screen photo lightbox (coach viewing a client's check-in photo) */

.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 40px 20px;
}

.lightbox-overlay.open {
  display: flex;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: #fff;
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  margin-top: 0;
  padding: 4px 10px;
}

.lightbox-download {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 0;
}

/* Pose photo upload tiles */

.photo-upload-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.photo-upload-box {
  width: 90px;
  height: 90px;
  border-radius: 12px;
  border: 1.5px dashed var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.photo-upload-box:hover {
  border-color: var(--accent-strong);
  color: var(--accent);
}

.photo-upload-box.filled {
  border-style: solid;
  border-color: var(--accent-strong);
}

.photo-upload-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-upload-box input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* Scale buttons for check-ins */

.scale-row {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.scale-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  margin-top: 0;
}

.scale-btn.on {
  background: var(--accent);
  color: #0b1512;
  border-color: var(--accent);
}

/* Coach profile modal (reviews) */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: none;
  align-items: flex-start;
  justify-content: center;
  z-index: 1000;
  padding: 40px 16px;
  overflow-y: auto;
}

.modal-overlay.open {
  display: flex;
}

.modal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  width: 100%;
  max-width: 460px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  margin-top: 0;
  padding: 4px 8px;
}

.star-row {
  display: inline-flex;
  gap: 2px;
}

.star-btn {
  background: none;
  border: none;
  font-size: 22px;
  line-height: 1;
  color: var(--border);
  cursor: pointer;
  padding: 2px;
  margin-top: 0;
}

.star-btn.filled {
  color: #facc15;
}

.star-display {
  color: #facc15;
  font-size: 13px;
  letter-spacing: 1px;
}

/* Month calendar view */

.month-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.month-nav-title {
  font-weight: 800;
  font-size: 16px;
}

.month-nav-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
  margin-top: 0;
  padding: 0;
}

.month-nav-btn:hover {
  background: var(--surface);
  border-color: var(--accent-strong);
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.month-weekday {
  text-align: center;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  padding-bottom: 4px;
}

.month-cell {
  min-height: 62px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  background: var(--surface-2);
  cursor: pointer;
  overflow: hidden;
}

.month-cell.other-month {
  opacity: 0.35;
}

.month-cell.today {
  border-color: var(--accent-strong);
}

.month-cell.selected {
  background: rgba(94, 234, 212, 0.12);
  border-color: var(--accent-strong);
}

.month-day-num {
  font-weight: 700;
  font-size: 11.5px;
  color: var(--text);
}

.month-chip {
  font-size: 9px;
  border-radius: 4px;
  padding: 1px 4px;
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: var(--surface);
}

.month-chip.training {
  background: rgba(94, 234, 212, 0.18);
  color: var(--accent);
}

.month-chip.more {
  color: var(--text-dim);
}

/* Instagram-style ad post composer (coach side) */

.ig-post-preview {
  max-width: 340px;
  margin: 14px 0 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface-2);
}

.ig-post-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
}

.ig-post-media {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.ig-post-media input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.ig-post-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 13px;
  pointer-events: none;
}

.ad-media-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.ig-post-caption-row {
  padding: 10px 12px 12px;
}

.ig-post-caption-row textarea {
  width: 100%;
  box-sizing: border-box;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  resize: vertical;
  padding: 0;
}

.ig-post-caption-row textarea:focus {
  outline: none;
}

/* Ad feed cards */

.ad-card {
  padding: 0;
  overflow: hidden;
}

.ad-card .ad-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
}

.ad-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0b1512;
  font-weight: 700;
  font-size: 13px;
  background: var(--accent);
}

.ad-media {
  aspect-ratio: 1 / 1;
  width: 100%;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 13px;
  text-align: center;
  padding: 0 24px;
  overflow: hidden;
}

.ad-body {
  padding: 12px 14px 16px;
}

/* Utility */

.flex-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.mt-0 {
  margin-top: 0 !important;
}

.small-btn {
  padding: 6px 12px;
  font-size: 12px;
  margin-top: 0;
}

.hint {
  font-size: 12px;
  color: var(--text-dim);
}

section[data-tab-panel] {
  display: none;
}

section[data-tab-panel].active {
  display: block;
}