/* ============================================================
   TrainerApp — Main Stylesheet
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --font: 'Inter', system-ui, -apple-system, sans-serif;

  --c-primary:    #6366f1;
  --c-primary-h:  #4f46e5;
  --c-primary-l:  #eef2ff;
  --c-violet:     #8b5cf6;
  --c-violet-l:   #f5f3ff;
  --c-green:      #22c55e;
  --c-green-l:    #dcfce7;
  --c-amber:      #f59e0b;
  --c-amber-l:    #fef3c7;
  --c-red:        #ef4444;
  --c-red-l:      #fee2e2;

  --c-sidebar:    #0f0f1a;
  --c-sidebar-h:  #1a1a2e;
  --c-bg:         #f1f5f9;
  --c-surface:    #ffffff;
  --c-border:     #e2e8f0;
  --c-border-h:   #cbd5e1;

  --c-text:       #0f172a;
  --c-text-2:     #475569;
  --c-text-3:     #94a3b8;
  --c-text-inv:   #f8fafc;

  --radius-sm:    6px;
  --radius:       10px;
  --radius-lg:    16px;
  --radius-xl:    20px;

  --shadow-sm:    0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:       0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.05);
  --shadow-lg:    0 10px 40px rgba(0,0,0,.12);
  --shadow-xl:    0 20px 60px rgba(0,0,0,.15);

  --sidebar-w:    240px;
  --topbar-h:     60px;
  --transition:   .18s ease;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); background: var(--c-bg); color: var(--c-text); line-height: 1.6; font-size: 14px; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font: inherit; border: none; background: none; }
input, select, textarea { font: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* ── Utilities ───────────────────────────────────────────────── */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ── App Shell ───────────────────────────────────────────────── */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--c-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform var(--transition);
  overflow: hidden;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 16px 12px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon, .login-logo .logo-icon {
  flex-shrink: 0;
}
.logo-label {
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  letter-spacing: -.3px;
}

.sidebar-close {
  display: none;
  color: var(--c-text-3);
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.sidebar-close:hover { color: #fff; }

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius);
  color: rgba(255,255,255,.55);
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  position: relative;
}
.nav-item:hover { background: rgba(255,255,255,.07); color: rgba(255,255,255,.9); }
.nav-item.active { background: rgba(99,102,241,.25); color: #fff; }
.nav-item.active .nav-icon { color: var(--c-primary); }
.nav-icon { flex-shrink: 0; transition: color var(--transition); }

.nav-badge {
  margin-left: auto;
  background: var(--c-red);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

.sidebar-footer {
  padding: 12px 10px 16px;
  border-top: 1px solid rgba(255,255,255,.06);
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-card {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}
.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-violet));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}
.user-info { min-width: 0; }
.user-name {
  font-weight: 600;
  font-size: 13px;
  color: rgba(255,255,255,.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-role {
  font-size: 11px;
  color: rgba(255,255,255,.4);
}

.btn-logout {
  color: rgba(255,255,255,.4);
  padding: 7px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: color var(--transition), background var(--transition);
}
.btn-logout:hover { color: var(--c-red); background: rgba(239,68,68,.1); }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 190;
  backdrop-filter: blur(2px);
}

/* ── Main wrap ───────────────────────────────────────────────── */
.main-wrap {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ── Topbar ──────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.topbar-menu { display: none; color: var(--c-text-2); }
.topbar-title {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -.3px;
  flex: 1;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Content ─────────────────────────────────────────────────── */
.content {
  flex: 1;
  padding: 24px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1;
}
.btn:disabled { opacity: .5; pointer-events: none; }
.btn-primary {
  background: var(--c-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--c-primary-h); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(99,102,241,.35); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--c-text-2);
}
.btn-ghost:hover { background: var(--c-bg); color: var(--c-text); }
.btn-ghost.active { background: var(--c-primary-l); color: var(--c-primary); }
.btn-outline {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}
.btn-outline:hover { background: var(--c-primary-l); }
.btn-danger-outline {
  background: transparent;
  color: var(--c-red);
  border: 1.5px solid var(--c-red);
}
.btn-danger-outline:hover { background: var(--c-red-l); }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: var(--radius-sm); }
.btn-full { width: 100%; }
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px;
  border-radius: var(--radius-sm);
  color: var(--c-text-2);
  transition: background var(--transition), color var(--transition);
}
.btn-icon:hover { background: var(--c-bg); color: var(--c-text); }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  overflow: hidden;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 16px;
  border-bottom: 1px solid var(--c-border);
}
.card-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.2px;
}
.card-body { padding: 16px 20px; }

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
}
.badge-indigo  { background: var(--c-primary-l); color: var(--c-primary); }
.badge-violet  { background: var(--c-violet-l);  color: var(--c-violet); }
.badge-green   { background: var(--c-green-l);   color: #16a34a; }
.badge-amber   { background: var(--c-amber-l);   color: #d97706; }
.badge-red     { background: var(--c-red-l);     color: var(--c-red); }
.badge-grey    { background: var(--c-bg);        color: var(--c-text-2); }

/* ── Forms ───────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 500; color: var(--c-text-2); }
.form-group-lg { flex: 2; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 160px; }

input[type="text"], input[type="email"], input[type="password"],
input[type="url"], input[type="number"], input[type="datetime-local"],
select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  color: var(--c-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  font-size: 14px;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,.12);
}
input::placeholder, textarea::placeholder { color: var(--c-text-3); }
textarea { resize: vertical; min-height: 80px; }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg width='14' height='14' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 32px; }
.select-sm { padding: 6px 28px 6px 10px; font-size: 13px; border: 1.5px solid var(--c-border); border-radius: var(--radius-sm); background-color: var(--c-surface); }
.select-full { width: 100%; }
.input-color { width: 48px; height: 40px; padding: 2px 4px; cursor: pointer; }

.form-error {
  background: var(--c-red-l);
  color: var(--c-red);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
}
.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 8px;
  margin-top: 4px;
  border-top: 1px solid var(--c-border);
}
.form-actions-right { display: flex; gap: 8px; }
.modal-form { display: flex; flex-direction: column; gap: 16px; }
.form-section { display: flex; flex-direction: column; gap: 12px; }
.form-section-header { display: flex; align-items: center; justify-content: space-between; }
.form-section-header h4 { font-size: 14px; font-weight: 600; color: var(--c-text-2); }

.radio-group { display: flex; gap: 16px; }
.radio-label { display: flex; align-items: center; gap: 6px; cursor: pointer; font-size: 14px; }

/* ── Modal ───────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn .15s ease;
}
.modal {
  background: var(--c-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 600px;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  animation: slideUp .2s ease;
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--c-border);
  flex-shrink: 0;
}
.modal-title { font-size: 18px; font-weight: 700; letter-spacing: -.3px; }
.modal-body { padding: 20px 24px; overflow-y: auto; flex: 1; }
.modal-footer {
  padding: 12px 24px 16px;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-shrink: 0;
}

@keyframes fadeIn  { from { opacity: 0 } to { opacity: 1 } }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0 } to { transform: translateY(0); opacity: 1 } }

/* ── Toast ───────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--c-text);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  animation: toastIn .25s ease;
  max-width: 340px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.toast-success { border-left: 3px solid var(--c-green); }
.toast-error   { border-left: 3px solid var(--c-red); }
.toast-info    { border-left: 3px solid var(--c-primary); }
.toast-out     { animation: toastOut .2s ease forwards; }
@keyframes toastIn  { from { transform: translateX(100%); opacity: 0 } to { transform: translateX(0); opacity: 1 } }
@keyframes toastOut { to   { transform: translateX(120%); opacity: 0 } }

/* ── Skeleton ────────────────────────────────────────────────── */
.skeleton-list { display: flex; flex-direction: column; gap: 10px; padding: 12px; }
.skeleton-list::before,
.skeleton-list::after {
  content: '';
  display: block;
  height: 40px;
  border-radius: var(--radius);
  background: linear-gradient(90deg, var(--c-bg) 25%, #e2e8f0 50%, var(--c-bg) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer { 0% { background-position: -200% 0 } 100% { background-position: 200% 0 } }

/* ── Empty state ─────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  color: var(--c-text-3);
  padding: 32px 16px;
  font-size: 14px;
}

/* ── Login ───────────────────────────────────────────────────── */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
  padding: 20px;
}
.login-wrap { width: 100%; max-width: 420px; }
.login-card {
  background: var(--c-surface);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-xl);
}
.login-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}
.login-logo .logo-text { font-weight: 800; font-size: 20px; letter-spacing: -.4px; }
.login-title { font-size: 24px; font-weight: 800; letter-spacing: -.5px; margin-bottom: 6px; }
.login-sub { color: var(--c-text-2); margin-bottom: 28px; }
.login-form { display: flex; flex-direction: column; gap: 18px; }

.input-pw-wrap { position: relative; }
.input-pw-wrap input { padding-right: 44px; }
.pw-toggle {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  color: var(--c-text-3); padding: 4px; border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.pw-toggle:hover { color: var(--c-text); }

.login-hint { margin-top: 20px; text-align: center; color: var(--c-text-3); font-size: 12px; }

.btn-spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg) } }

/* ── Dashboard ───────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-indigo .stat-icon { background: var(--c-primary-l); color: var(--c-primary); }
.stat-violet .stat-icon { background: var(--c-violet-l);  color: var(--c-violet); }
.stat-green  .stat-icon { background: var(--c-green-l);   color: #16a34a; }
.stat-value { font-size: 28px; font-weight: 800; letter-spacing: -1px; line-height: 1; }
.stat-label { font-size: 13px; color: var(--c-text-2); margin-top: 3px; }

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

.upcoming-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition);
}
.upcoming-item:hover { background: var(--c-bg); }
.upcoming-dot {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}
.upcoming-dot.personal { background: var(--c-violet); }
.upcoming-dot.group    { background: var(--c-primary); }
.upcoming-body { flex: 1; min-width: 0; }
.upcoming-title { font-weight: 600; font-size: 14px; }
.upcoming-meta  { font-size: 12px; color: var(--c-text-2); margin-top: 2px; }

.team-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition);
}
.team-row:hover { background: var(--c-bg); }
.team-color-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.team-name { font-weight: 600; }

/* ── Calendar ────────────────────────────────────────────────── */
.page-calendar { display: flex; flex-direction: column; gap: 16px; }

.calendar-toolbar {
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}
.cal-nav { display: flex; align-items: center; gap: 8px; }
.cal-month-label { font-size: 17px; font-weight: 700; min-width: 200px; text-align: center; letter-spacing: -.3px; }
.cal-filters { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; justify-content: center; }
.cal-view-toggle { display: flex; gap: 4px; margin-left: auto; }

.calendar-grid-wrap {
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

/* Month view */
.cal-month { width: 100%; }
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  border-bottom: 1px solid var(--c-border);
}
.cal-weekday {
  text-align: center;
  padding: 10px 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--c-text-2);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.cal-days { display: grid; grid-template-columns: repeat(7, 1fr); }
.cal-day {
  border-right: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  min-height: 110px;
  padding: 6px;
  cursor: default;
  transition: background var(--transition);
}
.cal-day:nth-child(7n) { border-right: none; }
.cal-day-other { background: #fafbfc; }
.cal-day-today { background: #f5f3ff; }
.cal-day-num {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text-2);
  margin-bottom: 4px;
  display: inline-flex;
  width: 26px; height: 26px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}
.cal-day-today .cal-day-num {
  background: var(--c-primary);
  color: #fff;
}
.cal-day-other .cal-day-num { color: var(--c-text-3); }
.cal-event {
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
  margin-bottom: 2px;
  cursor: pointer;
  transition: opacity var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cal-event:hover { opacity: .8; }
.cal-event.personal { background: var(--c-violet-l); color: var(--c-violet); }
.cal-event.group    { background: var(--c-primary-l); color: var(--c-primary); }
.cal-event.done     { opacity: .5; text-decoration: line-through; }
.cal-event.cancelled{ opacity: .4; text-decoration: line-through; }
.cal-more { font-size: 11px; color: var(--c-text-3); padding: 0 4px; cursor: pointer; }
.cal-more:hover { color: var(--c-primary); }

/* Week view */
.cal-week { width: 100%; overflow-x: auto; }
.cal-week-grid {
  display: grid;
  grid-template-columns: 56px repeat(7, 1fr);
  min-width: 700px;
}
.cal-week-header { display: contents; }
.cal-week-th {
  padding: 10px 6px;
  text-align: center;
  border-bottom: 1px solid var(--c-border);
  border-right: 1px solid var(--c-border);
}
.cal-week-th-time { border-right: 1px solid var(--c-border); }
.cal-week-th-label { font-size: 11px; font-weight: 600; color: var(--c-text-2); text-transform: uppercase; letter-spacing: .5px; }
.cal-week-th-day   { font-size: 22px; font-weight: 800; display: block; letter-spacing: -1px; }
.cal-week-th.today .cal-week-th-day {
  background: var(--c-primary);
  color: #fff;
  border-radius: 8px;
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.cal-week-body { display: contents; }
.cal-week-time-col {
  display: flex;
  flex-direction: column;
}
.cal-hour-slot {
  height: 60px;
  border-bottom: 1px solid var(--c-border);
  padding: 2px 6px 0;
  font-size: 11px;
  color: var(--c-text-3);
  font-weight: 500;
}
.cal-week-day-col {
  border-right: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  min-height: 60px;
  position: relative;
}
.cal-week-event {
  position: absolute;
  left: 3px; right: 3px;
  border-radius: 6px;
  padding: 3px 6px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  overflow: hidden;
  transition: opacity var(--transition);
}
.cal-week-event:hover { opacity: .85; }
.cal-week-event.personal { background: var(--c-violet-l); color: var(--c-violet); border-left: 3px solid var(--c-violet); }
.cal-week-event.group    { background: var(--c-primary-l); color: var(--c-primary); border-left: 3px solid var(--c-primary); }

/* Training detail */
.training-detail .detail-section { margin-bottom: 20px; }
.training-detail .detail-label { font-size: 12px; font-weight: 600; color: var(--c-text-3); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }
.training-detail .detail-value { font-size: 15px; }
.exercise-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
}
.ex-num {
  width: 24px; height: 24px;
  background: var(--c-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-text-2);
  flex-shrink: 0;
  margin-top: 2px;
}
.ex-body { flex: 1; min-width: 0; }
.ex-name { font-weight: 600; margin-bottom: 4px; }
.ex-params { display: flex; gap: 10px; flex-wrap: wrap; }
.ex-param { font-size: 12px; color: var(--c-text-2); background: var(--c-bg); padding: 2px 8px; border-radius: 99px; }
.ex-video-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--c-primary);
  margin-top: 6px;
  cursor: pointer;
  font-weight: 500;
}
.ex-video-btn:hover { text-decoration: underline; }

/* Edit exercise row */
.exercise-edit-row {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}
.exercise-edit-row .ex-edit-header { display: flex; align-items: center; gap: 8px; }
.exercise-edit-row .ex-edit-name { font-weight: 600; flex: 1; }
.exercise-edit-row .ex-params-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 6px; }
.ex-param-group { display: flex; flex-direction: column; gap: 3px; }
.ex-param-group label { font-size: 11px; font-weight: 500; color: var(--c-text-3); }
.ex-param-group input { padding: 5px 8px; font-size: 13px; }

/* ── Exercises page ──────────────────────────────────────────── */
.page-exercises { display: flex; flex-direction: column; gap: 16px; }
.ex-toolbar { display: flex; gap: 10px; flex-wrap: wrap; }
.search-wrap { position: relative; flex: 1; min-width: 200px; }
.search-icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--c-text-3); pointer-events: none; }
.search-input { width: 100%; padding: 9px 12px 9px 36px; border: 1.5px solid var(--c-border); border-radius: var(--radius); background: var(--c-surface); transition: border-color var(--transition); }
.search-input:focus { border-color: var(--c-primary); outline: none; box-shadow: 0 0 0 3px rgba(99,102,241,.12); }

.ex-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
}
.ex-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
}
.ex-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.ex-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.ex-card-name { font-weight: 700; font-size: 15px; letter-spacing: -.2px; }
.ex-card-desc { font-size: 13px; color: var(--c-text-2); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ex-card-footer { display: flex; align-items: center; gap: 8px; margin-top: 4px; }
.ex-video-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 99px;
  cursor: pointer;
  transition: opacity var(--transition);
}
.ex-video-chip:hover { opacity: .8; }
.chip-yt  { background: #fee2e2; color: #dc2626; }
.chip-rt  { background: #fef3c7; color: #d97706; }

/* ── Teams page ──────────────────────────────────────────────── */
.page-teams { height: calc(100vh - var(--topbar-h) - 48px); }
.teams-layout { display: flex; gap: 0; height: 100%; background: var(--c-surface); border-radius: var(--radius-lg); border: 1px solid var(--c-border); overflow: hidden; box-shadow: var(--shadow-sm); }

.teams-sidebar {
  width: 260px;
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.teams-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--c-border);
}
.teams-sidebar-header h3 { font-size: 15px; font-weight: 700; }
.teams-list-sidebar { flex: 1; overflow-y: auto; padding: 8px; }
.team-sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition);
}
.team-sidebar-item:hover { background: var(--c-bg); }
.team-sidebar-item.active { background: var(--c-primary-l); }
.team-sidebar-item.active .team-sidebar-name { color: var(--c-primary); }
.team-sidebar-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.team-sidebar-name { font-weight: 600; font-size: 14px; }

.team-detail { flex: 1; overflow-y: auto; padding: 24px; }
.team-detail-empty {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--c-text-3);
}
.team-detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.team-detail-title { font-size: 22px; font-weight: 800; letter-spacing: -.4px; }
.team-detail-actions { display: flex; gap: 8px; }
.member-section { margin-bottom: 24px; }
.member-section-title { font-size: 13px; font-weight: 600; color: var(--c-text-2); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 12px; }
.member-list { display: flex; flex-direction: column; gap: 6px; }
.member-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
}
.member-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-violet));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}
.member-name  { font-weight: 600; flex: 1; }
.member-email { font-size: 12px; color: var(--c-text-3); }
.member-note { font-size: 12px; color: var(--c-text-2); margin-top: 4px; line-height: 1.4; }
.member-actions { display: flex; gap: 4px; }

/* ── Athletes outside teams page ─────────────────────────────── */
.page-athletes { display: flex; flex-direction: column; gap: 16px; }
.athletes-panel {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.athletes-panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.athletes-panel-header h3 { font-size: 18px; margin-bottom: 4px; }
.athletes-panel-header p { color: var(--c-text-2); font-size: 13px; line-height: 1.5; }

/* ── Chat ────────────────────────────────────────────────────── */
.page-chat { height: calc(100vh - var(--topbar-h) - 48px); }
.chat-layout { display: flex; height: 100%; background: var(--c-surface); border-radius: var(--radius-lg); border: 1px solid var(--c-border); overflow: hidden; box-shadow: var(--shadow-sm); }

.chat-sidebar { width: 280px; border-right: 1px solid var(--c-border); display: flex; flex-direction: column; flex-shrink: 0; }
.chat-sidebar-header { display: flex; align-items: center; justify-content: space-between; padding: 16px; border-bottom: 1px solid var(--c-border); }
.chat-sidebar-header h3 { font-size: 15px; font-weight: 700; }
.chat-rooms-list { flex: 1; overflow-y: auto; }

.room-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: background var(--transition);
  border-bottom: 1px solid var(--c-border);
}
.room-item:hover { background: var(--c-bg); }
.room-item.active { background: var(--c-primary-l); }
.room-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-violet));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.room-avatar.group-room { border-radius: 12px; }
.room-body { flex: 1; min-width: 0; }
.room-name { font-weight: 600; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.room-preview { font-size: 12px; color: var(--c-text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.room-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.room-time { font-size: 11px; color: var(--c-text-3); }
.room-unread { background: var(--c-primary); color: #fff; border-radius: 99px; min-width: 18px; height: 18px; font-size: 10px; font-weight: 700; display: flex; align-items: center; justify-content: center; padding: 0 4px; }

.chat-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.chat-empty { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; color: var(--c-text-3); }

.chat-header { padding: 14px 20px; border-bottom: 1px solid var(--c-border); display: flex; align-items: center; gap: 12px; flex-shrink: 0; background: var(--c-surface); }
.chat-header-avatar { width: 38px; height: 38px; border-radius: 50%; background: linear-gradient(135deg, var(--c-primary), var(--c-violet)); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; flex-shrink: 0; }
.chat-header-name { font-weight: 700; font-size: 15px; }
.chat-header-status { font-size: 12px; color: var(--c-text-3); }

.chat-messages { flex: 1; overflow-y: auto; padding: 16px 20px; display: flex; flex-direction: column; gap: 12px; }

.msg { display: flex; gap: 10px; max-width: 72%; }
.msg.own { align-self: flex-end; flex-direction: row-reverse; }
.msg-avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-violet));
  color: #fff; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 4px;
}
.msg-content { display: flex; flex-direction: column; gap: 4px; }
.msg-name { font-size: 11px; font-weight: 600; color: var(--c-text-2); }
.msg.own .msg-name { text-align: right; }
.msg-bubble {
  padding: 10px 14px;
  border-radius: 18px;
  border-bottom-left-radius: 4px;
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 14px;
  line-height: 1.5;
  word-break: break-word;
}
.msg.own .msg-bubble { background: var(--c-primary); color: #fff; border-radius: 18px; border-bottom-right-radius: 4px; }
.msg-time { font-size: 10px; color: var(--c-text-3); padding: 0 4px; }
.msg.own .msg-time { text-align: right; }

.chat-input-wrap {
  padding: 12px 16px;
  border-top: 1px solid var(--c-border);
  display: flex;
  gap: 8px;
  align-items: flex-end;
  flex-shrink: 0;
}
.chat-input {
  flex: 1;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 10px 14px;
  font-size: 14px;
  resize: none;
  max-height: 120px;
  background: var(--c-surface);
  outline: none;
  transition: border-color var(--transition);
  line-height: 1.5;
}
.chat-input:focus { border-color: var(--c-primary); }
.chat-send-btn {
  width: 42px; height: 42px;
  background: var(--c-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition), transform var(--transition);
}
.chat-send-btn:hover { background: var(--c-primary-h); transform: scale(1.05); }
.chat-send-btn:disabled { opacity: .5; transform: none; }

/* ── Video player ────────────────────────────────────────────── */
.player-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.85);
  z-index: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn .15s ease;
}
.player-modal {
  position: relative;
  width: 100%;
  max-width: 900px;
  animation: slideUp .2s ease;
}
.player-close {
  position: absolute;
  top: -44px;
  right: 0;
  background: rgba(255,255,255,.12);
  border-radius: 50%;
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.player-close:hover { background: rgba(255,255,255,.25); }
.player-container { border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 16/9; background: #000; }
.player-container iframe { width: 100%; height: 100%; border: none; }

/* ── Profile modal ───────────────────────────────────────────── */
.profile-section { margin-bottom: 24px; }
.profile-section:last-child { margin-bottom: 0; }
.profile-section-title { font-size: 13px; font-weight: 600; color: var(--c-text-2); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px solid var(--c-border); }

/* ── Loading overlay ─────────────────────────────────────────── */
.page-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 0;
}
.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--c-border);
  border-top-color: var(--c-primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

/* ── Scrollbar ───────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--c-border-h); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-text-3); }

/* ── Drag handle for exercise reorder ───────────────────────── */
.ex-drag-handle { cursor: grab; color: var(--c-text-3); padding: 4px; }
.ex-drag-handle:active { cursor: grabbing; }
.exercise-edit-row.dragging { opacity: .5; background: var(--c-primary-l); }

/* ── Status dot ──────────────────────────────────────────────── */
.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}
.status-dot.planned   { background: var(--c-primary); }
.status-dot.done      { background: var(--c-green); }
.status-dot.cancelled { background: var(--c-text-3); }

/* ── Chip filters ────────────────────────────────────────────── */
.chip-group { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 500;
  border: 1.5px solid var(--c-border);
  cursor: pointer;
  transition: all var(--transition);
  background: var(--c-surface);
  color: var(--c-text-2);
}
.chip:hover  { border-color: var(--c-primary); color: var(--c-primary); }
.chip.active { border-color: var(--c-primary); background: var(--c-primary-l); color: var(--c-primary); font-weight: 600; }

/* ── Divider ─────────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--c-border); margin: 16px 0; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    transform: translateX(-240px);
    width: 240px;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: flex; }
  .sidebar-overlay.active { display: block; }

  .main-wrap { margin-left: 0; }
  .topbar-menu { display: flex; }

  .content { padding: 16px; }

  .page-teams, .page-chat { height: auto; }
  .teams-layout, .chat-layout { flex-direction: column; border-radius: 0; border: none; box-shadow: none; }
  .teams-sidebar, .chat-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--c-border); }

  .cal-month .cal-day { min-height: 72px; }
  .dashboard-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .cal-month .cal-day { min-height: 52px; padding: 3px; }
  .cal-event { display: none; }
  .cal-day-num { font-size: 12px; width: 22px; height: 22px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .modal { border-radius: var(--radius-lg); }
  .login-card { padding: 28px 20px; }
  .chat-sidebar { max-height: 300px; }
  .msg { max-width: 88%; }
  .ex-grid { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; }
}