/* =============================================
   FITPRO — Personal Trainer App Styles
   Tema Escuro Premium Fitness
   ============================================= */

:root {
  --bg-primary: #0F0F0F;
  --bg-secondary: #1A1A1A;
  --bg-card: #1E1E1E;
  --bg-card2: #242424;
  --border: #2A2A2A;
  --border-light: #333;
  --green: #00FF7F;
  --green-dim: #00CC66;
  --green-dark: #003322;
  --orange: #FF6B00;
  --orange-dim: #CC5500;
  --blue: #4D9FFF;
  --blue-dim: #3A7ACC;
  --red: #FF4C4C;
  --red-dim: #CC3B3B;
  --purple: #B48EFF;
  --text-primary: #FFFFFF;
  --text-secondary: #A0A0A0;
  --text-muted: #606060;
  --sidebar-w: 250px;
  --sidebar-w-collapsed: 68px;
  --topbar-h: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ==================== LOGIN ==================== */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.login-bg { position: absolute; inset: 0; pointer-events: none; }
.login-bg-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}
.login-bg-shape.s1 {
  width: 500px; height: 500px;
  background: var(--green);
  top: -150px; left: -100px;
}
.login-bg-shape.s2 {
  width: 400px; height: 400px;
  background: var(--orange);
  bottom: -100px; right: -100px;
}
.login-bg-shape.s3 {
  width: 300px; height: 300px;
  background: var(--blue);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 40px;
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow);
  animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-logo {
  text-align: center;
  margin-bottom: 36px;
}

.logo-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--green), var(--orange));
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: #000;
  margin-bottom: 12px;
}

.login-logo h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--green), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-logo p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 4px;
}

.login-form .form-group { margin-bottom: 18px; }
.login-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.login-form label i { margin-right: 6px; color: var(--green); }

.login-form input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 15px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.login-form input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0,255,127,0.12);
}

.input-eye { position: relative; }
.input-eye input { padding-right: 44px; }
.eye-btn {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  color: var(--text-muted); cursor: pointer;
  padding: 4px;
  transition: color var(--transition);
}
.eye-btn:hover { color: var(--green); }

.login-remember {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  accent-color: var(--green);
}

.forgot-link {
  font-size: 13px;
  color: var(--green);
  text-decoration: none;
  font-weight: 500;
}
.forgot-link:hover { text-decoration: underline; }

.btn-login {
  width: 100%;
  background: linear-gradient(135deg, var(--green), var(--green-dim));
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
  font-family: inherit;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,255,127,0.3);
}

.login-hint {
  text-align: center;
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-muted);
}
.login-hint i { margin-right: 4px; color: var(--blue); }

/* ==================== APP LAYOUT ==================== */
.app {
  display: flex;
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ==================== SIDEBAR ==================== */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0;
  z-index: 100;
  transition: width var(--transition);
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-w-collapsed);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
  min-height: 64px;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.logo-icon-sm {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--green), var(--orange));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #000;
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--green), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}

.sidebar-toggle {
  background: none; border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 16px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  flex-shrink: 0;
}
.sidebar-toggle:hover { background: var(--border); color: var(--text-primary); }

/* Trainer Profile */
.trainer-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.trainer-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 2px solid var(--green);
  flex-shrink: 0;
}

.trainer-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.trainer-name {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.trainer-role {
  font-size: 11px;
  color: var(--green);
  font-weight: 500;
  white-space: nowrap;
}

/* Nav */
.sidebar-nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.sidebar-nav ul { list-style: none; }
.sidebar-nav li { margin: 2px 8px; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
  overflow: hidden;
}

.nav-link i {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.nav-link span:first-of-type { flex: 1; }

.nav-link:hover {
  background: var(--border);
  color: var(--text-primary);
}

.nav-link.active {
  background: rgba(0,255,127,0.12);
  color: var(--green);
}

.nav-link.active i { color: var(--green); }

/* Badges */
.badge {
  background: var(--blue);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 99px;
  flex-shrink: 0;
}
.badge-warn { background: var(--orange); }
.badge-green { background: var(--green); color: #000; }

/* Sidebar footer */
.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border);
}

.btn-logout {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-logout:hover { background: rgba(255,76,76,0.1); color: var(--red); border-color: var(--red); }

/* Collapsed state */
.sidebar.collapsed .logo-text,
.sidebar.collapsed .trainer-info,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .badge,
.sidebar.collapsed .btn-logout span {
  display: none;
}

.sidebar.collapsed .trainer-profile { justify-content: center; }
.sidebar.collapsed .sidebar-logo { justify-content: center; }

/* ==================== MAIN CONTENT ==================== */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition);
}

.main-content.expanded { margin-left: var(--sidebar-w-collapsed); }

/* ==================== TOPBAR ==================== */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: 16px; }

.menu-btn {
  background: none; border: none;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  display: none;
}
.menu-btn:hover { background: var(--border); color: var(--text-primary); }

.breadcrumb {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
}

.search-bar i { color: var(--text-muted); font-size: 13px; }
.search-bar input {
  background: none; border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  width: 200px;
  outline: none;
}
.search-bar input::placeholder { color: var(--text-muted); }

.notif-btn {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 16px;
}
.notif-btn:hover { background: var(--border); color: var(--text-primary); }

.notif-dot {
  position: absolute;
  top: 8px; right: 8px;
  width: 7px; height: 7px;
  background: var(--green);
  border-radius: 50%;
}

.topbar-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 2px solid var(--green);
  cursor: pointer;
}

/* ==================== PAGES ==================== */
.page {
  display: none;
  padding: 28px 24px;
  animation: fadeIn 0.3s ease;
}

.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.page-header h2 {
  font-size: 22px;
  font-weight: 800;
  flex: 1;
}

.page-subtitle {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 8px;
}

.page-date {
  font-size: 13px;
  color: var(--text-muted);
}

/* ==================== BUTTONS ==================== */
.btn-primary {
  background: linear-gradient(135deg, var(--green), var(--green-dim));
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
  font-family: inherit;
  white-space: nowrap;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,255,127,0.25); }

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}
.btn-secondary:hover { background: var(--border); color: var(--text-primary); }

.btn-back {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  transition: all var(--transition);
}
.btn-back:hover { background: var(--border); color: var(--text-primary); }

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  transition: all var(--transition);
}
.btn-icon:hover { background: var(--border); color: var(--text-primary); }
.btn-icon.danger:hover { background: rgba(255,76,76,0.15); color: var(--red); border-color: var(--red); }

.btn-sm-green {
  background: rgba(0,255,127,0.12);
  color: var(--green);
  border: 1px solid rgba(0,255,127,0.3);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  transition: all var(--transition);
}
.btn-sm-green:hover { background: rgba(0,255,127,0.2); }

/* ==================== CARDS ==================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.card-header h3 {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-header h3 i { color: var(--green); }

.card-select {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  outline: none;
}

.card-link {
  font-size: 12px;
  color: var(--green);
  text-decoration: none;
  font-weight: 500;
}
.card-link:hover { text-decoration: underline; }

/* ==================== METRICS GRID ==================== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.metric-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.metric-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}
.metric-card:nth-child(1)::before { background: var(--blue); }
.metric-card:nth-child(2)::before { background: var(--green); }
.metric-card:nth-child(3)::before { background: var(--orange); }
.metric-card:nth-child(4)::before { background: var(--red); }

.metric-icon {
  width: 46px; height: 46px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.ic-blue { background: rgba(77,159,255,0.15); color: var(--blue); }
.ic-green { background: rgba(0,255,127,0.15); color: var(--green); }
.ic-orange { background: rgba(255,107,0,0.15); color: var(--orange); }
.ic-red { background: rgba(255,76,76,0.15); color: var(--red); }
.ic-purple { background: rgba(180,142,255,0.15); color: var(--purple); }

.metric-info {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.metric-value {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.metric-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.metric-trend {
  position: absolute;
  bottom: 12px; right: 16px;
  font-size: 11px;
  font-weight: 600;
}
.metric-trend.up { color: var(--green); }
.metric-trend.down { color: var(--red); }

/* ==================== DASHBOARD GRID ==================== */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.chart-card { grid-column: 1; }
.sessions-card { grid-column: 2; }
.donut-card { grid-column: 1; }
.activity-card { grid-column: 2; }

/* Sessions List */
.sessions-list { display: flex; flex-direction: column; gap: 10px; }

.session-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.session-item:hover { background: var(--border); }

.session-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.session-info { flex: 1; }
.session-name { font-size: 13px; font-weight: 600; }
.session-time { font-size: 11px; color: var(--text-muted); }
.session-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 99px;
  background: rgba(0,255,127,0.12);
  color: var(--green);
}

/* Donut legend */
.donut-legend {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-label { flex: 1; color: var(--text-secondary); }
.legend-val { font-weight: 600; }

/* Activity List */
.activity-list { display: flex; flex-direction: column; gap: 12px; }

.activity-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.activity-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
}

.activity-info { flex: 1; }
.activity-text { font-size: 13px; }
.activity-text strong { color: var(--green); }
.activity-time { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ==================== FILTERS BAR ==================== */
.filters-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-filter {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  flex: 1;
  min-width: 200px;
}
.search-filter i { color: var(--text-muted); font-size: 13px; }
.search-filter input {
  background: none; border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  flex: 1;
  outline: none;
}
.search-filter input::placeholder { color: var(--text-muted); }

.filter-select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  outline: none;
}
.filter-select option { background: var(--bg-card); }

/* ==================== ALUNOS GRID ==================== */
.alunos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.aluno-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.aluno-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--border-light); }

.aluno-card-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.aluno-avatar {
  width: 52px; height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}

.aluno-main { flex: 1; }
.aluno-nome { font-size: 15px; font-weight: 700; }
.aluno-email { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.status-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 99px;
}
.status-ativo { background: rgba(0,255,127,0.12); color: var(--green); }
.status-inativo { background: rgba(160,160,160,0.12); color: var(--text-muted); }

.aluno-card-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 14px;
}

.info-item { display: flex; flex-direction: column; }
.info-label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.info-value { font-size: 13px; font-weight: 500; margin-top: 2px; }

.aluno-card-actions {
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/* ==================== TREINOS ==================== */
.treinos-list { display: flex; flex-direction: column; gap: 12px; }

.treino-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.treino-card:hover { border-color: var(--border-light); }

.treino-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
}

.treino-icon {
  width: 42px; height: 42px;
  background: rgba(0,255,127,0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  font-size: 16px;
  flex-shrink: 0;
}

.treino-main { flex: 1; }
.treino-nome { font-size: 15px; font-weight: 700; }
.treino-meta { font-size: 12px; color: var(--text-muted); margin-top: 3px; }
.treino-meta span { margin-right: 12px; }

.treino-aluno-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-secondary);
  border-radius: 99px;
  padding: 4px 10px 4px 4px;
}
.treino-aluno-badge img {
  width: 24px; height: 24px;
  border-radius: 50%;
}
.treino-aluno-badge span { font-size: 12px; font-weight: 500; }

.treino-card-body {
  display: none;
  padding: 0 20px 16px;
  border-top: 1px solid var(--border);
}
.treino-card-body.open { display: block; }

.exercicio-row {
  display: grid;
  grid-template-columns: 32px 1fr 80px 70px 70px 70px;
  gap: 10px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.exercicio-row:last-child { border-bottom: none; }

.ex-num {
  width: 28px; height: 28px;
  background: rgba(0,255,127,0.1);
  color: var(--green);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
}

.ex-label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.4px; }
.ex-val { font-weight: 600; margin-top: 1px; }

/* Exercicio builder */
.exercicios-builder { margin-top: 16px; }
.exer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.exer-header h4 { font-size: 14px; font-weight: 600; }

.exer-row {
  display: grid;
  grid-template-columns: 1fr 80px 80px 80px auto;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
}

.exer-row input, .exer-row select {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  outline: none;
}
.exer-row input:focus, .exer-row select:focus { border-color: var(--green); }

.btn-del-ex {
  background: rgba(255,76,76,0.1);
  border: 1px solid rgba(255,76,76,0.2);
  color: var(--red);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
  font-size: 12px;
}
.btn-del-ex:hover { background: rgba(255,76,76,0.2); }

/* ==================== PAGAMENTOS ==================== */
.financeiro-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.fin-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.fin-card i { font-size: 24px; flex-shrink: 0; }
.fin-card strong { display: block; font-size: 18px; font-weight: 800; }
.fin-card span { font-size: 12px; color: var(--text-muted); }

/* Table */
.table-wrapper { overflow-x: auto; }

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

.data-table th {
  background: var(--bg-secondary);
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,0.02); }

.aluno-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}
.aluno-cell img { width: 30px; height: 30px; border-radius: 50%; }
.aluno-cell span { font-weight: 600; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 99px;
}
.pill-pago { background: rgba(0,255,127,0.12); color: var(--green); }
.pill-pendente { background: rgba(255,107,0,0.12); color: var(--orange); }
.pill-atrasado { background: rgba(255,76,76,0.12); color: var(--red); }

.btn-table {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 12px;
  transition: all var(--transition);
  margin-right: 4px;
}
.btn-table:hover { background: var(--border); color: var(--text-primary); }
.btn-table.success:hover { background: rgba(0,255,127,0.1); color: var(--green); border-color: rgba(0,255,127,0.3); }
.btn-table.danger:hover { background: rgba(255,76,76,0.1); color: var(--red); border-color: rgba(255,76,76,0.3); }

/* ==================== CHAT ==================== */
.chat-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  height: calc(100vh - var(--topbar-h) - 120px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 500px;
}

.chat-sidebar {
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.chat-search {
  padding: 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-secondary);
}
.chat-search i { color: var(--text-muted); font-size: 13px; }
.chat-search input {
  background: none; border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  flex: 1;
  outline: none;
}

.chat-list { flex: 1; overflow-y: auto; }

.chat-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  transition: background var(--transition);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.chat-item:hover { background: rgba(255,255,255,0.03); }
.chat-item.active { background: rgba(0,255,127,0.08); }

.chat-item-avatar-wrap { position: relative; flex-shrink: 0; }
.chat-item-avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.chat-online {
  position: absolute;
  bottom: 1px; right: 1px;
  width: 11px; height: 11px;
  background: var(--green);
  border-radius: 50%;
  border: 2px solid var(--bg-card);
}

.chat-item-info { flex: 1; min-width: 0; }
.chat-item-header { display: flex; justify-content: space-between; align-items: center; }
.chat-item-name { font-size: 14px; font-weight: 600; }
.chat-item-time { font-size: 10px; color: var(--text-muted); }
.chat-item-preview { font-size: 12px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }

.chat-unread {
  background: var(--green);
  color: #000;
  font-size: 10px;
  font-weight: 800;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Chat Window */
.chat-window {
  display: flex;
  flex-direction: column;
}

.chat-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  gap: 12px;
}
.chat-empty i { font-size: 48px; opacity: 0.3; }
.chat-empty p { font-size: 14px; }

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}
.chat-header img { width: 38px; height: 38px; border-radius: 50%; }
.chat-header-info { flex: 1; }
.chat-header-name { font-size: 15px; font-weight: 700; }
.chat-header-status { font-size: 11px; color: var(--green); }

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.msg-row { display: flex; align-items: flex-end; gap: 8px; }
.msg-row.sent { flex-direction: row-reverse; }

.msg-avatar { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }

.msg-bubble {
  max-width: 60%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.5;
}

.msg-row.received .msg-bubble {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}

.msg-row.sent .msg-bubble {
  background: rgba(0,255,127,0.15);
  color: var(--text-primary);
  border-bottom-right-radius: 4px;
}

.msg-time {
  font-size: 10px;
  color: var(--text-muted);
  align-self: flex-end;
  margin-bottom: 2px;
}

.chat-input-bar {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-input-bar input {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 10px 18px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition);
}
.chat-input-bar input:focus { border-color: var(--green); }

.btn-send {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--green), var(--green-dim));
  border: none;
  border-radius: 50%;
  color: #000;
  cursor: pointer;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.btn-send:hover { transform: scale(1.1); box-shadow: 0 4px 12px rgba(0,255,127,0.3); }

/* ==================== VIDEOS ==================== */
.video-categories {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.cat-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 7px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
  font-family: inherit;
}
.cat-btn:hover { background: var(--border); color: var(--text-primary); }
.cat-btn.active { background: var(--green); color: #000; border-color: var(--green); }

.cat-btn i { font-size: 8px; }

.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.video-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--border-light); }

.video-thumbnail {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: var(--bg-secondary);
  overflow: hidden;
}

.video-thumbnail img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}

.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  transition: background var(--transition);
}
.video-card:hover .video-play-btn { background: rgba(0,0,0,0.6); }

.play-circle {
  width: 48px; height: 48px;
  background: rgba(0,255,127,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 18px;
  transition: transform var(--transition);
}
.video-card:hover .play-circle { transform: scale(1.1); }

.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
}

.video-cat-tag {
  position: absolute;
  top: 8px; left: 8px;
  background: var(--green);
  color: #000;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 99px;
}

.video-info {
  padding: 14px;
}

.video-title { font-size: 14px; font-weight: 700; margin-bottom: 6px; }

.video-meta {
  display: flex;
  gap: 10px;
  font-size: 11px;
  color: var(--text-muted);
}

.diff-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 99px;
}
.diff-iniciante { background: rgba(0,255,127,0.12); color: var(--green); }
.diff-intermediario { background: rgba(255,107,0,0.12); color: var(--orange); }
.diff-avancado { background: rgba(255,76,76,0.12); color: var(--red); }

.video-actions {
  padding: 0 14px 14px;
  display: flex;
  gap: 8px;
}

/* ==================== PERFIL ALUNO ==================== */
.perfil-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 20px;
}

.perfil-sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.perfil-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  border: 3px solid var(--green);
  margin-bottom: 14px;
}

.perfil-nome { font-size: 18px; font-weight: 800; margin-bottom: 4px; }
.perfil-email { font-size: 13px; color: var(--text-muted); }

.perfil-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
  margin: 18px 0;
}

.pstat {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.pstat-val { font-size: 18px; font-weight: 800; color: var(--green); }
.pstat-lbl { font-size: 10px; color: var(--text-muted); margin-top: 2px; }

.perfil-detail { width: 100%; text-align: left; }
.perfil-detail-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.perfil-detail-item:last-child { border-bottom: none; }
.perfil-detail-item span:first-child { color: var(--text-muted); }
.perfil-detail-item span:last-child { font-weight: 600; }

.perfil-main { display: flex; flex-direction: column; gap: 20px; }

/* Medidas */
.medidas-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.medida-item {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
}
.medida-val { font-size: 20px; font-weight: 800; color: var(--blue); }
.medida-lbl { font-size: 10px; color: var(--text-muted); margin-top: 2px; }
.medida-trend { font-size: 10px; margin-top: 4px; }

/* ==================== FORMS ==================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.form-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0,255,127,0.1);
}

.form-group textarea { resize: vertical; }
.form-group select option { background: var(--bg-card); }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* ==================== MODALS ==================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal-overlay.open { display: flex; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn 0.3s ease;
}

.modal-lg { max-width: 720px; }

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 {
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}
.modal-header h3 i { color: var(--green); }

.modal-close {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--border); color: var(--text-primary); }

.modal-body {
  padding: 24px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ==================== VIDEO PLAYER ==================== */
.video-player-container {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #000;
}

.player-info {
  margin-top: 16px;
  padding: 14px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}

/* ==================== TOAST ==================== */
.toast {
  position: fixed;
  bottom: 24px; right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--green);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  z-index: 9999;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  max-width: 340px;
  box-shadow: var(--shadow);
}

.toast.show { transform: translateX(0); }
.toast.error { border-left-color: var(--red); }
.toast.warning { border-left-color: var(--orange); }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1200px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .chart-card, .sessions-card, .donut-card, .activity-card { grid-column: 1; }
  .financeiro-metrics { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .sidebar { width: var(--sidebar-w-collapsed); }
  .sidebar .logo-text,
  .sidebar .trainer-info,
  .sidebar .nav-link span,
  .sidebar .badge,
  .sidebar .btn-logout span { display: none; }
  .sidebar .trainer-profile { justify-content: center; }
  .sidebar .sidebar-logo { justify-content: center; }
  .main-content { margin-left: var(--sidebar-w-collapsed); }
  .main-content.expanded { margin-left: 0; }
  .menu-btn { display: flex; }
  .chat-layout { grid-template-columns: 1fr; }
  .chat-sidebar { display: none; }
  .perfil-layout { grid-template-columns: 1fr; }
  .medidas-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .page { padding: 16px; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .alunos-grid { grid-template-columns: 1fr; }
  .videos-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .search-bar { display: none; }
  .topbar { padding: 0 16px; }
  .financeiro-metrics { grid-template-columns: 1fr 1fr; }
  .exer-row { grid-template-columns: 1fr 70px 70px 70px auto; }
  .exercicio-row { grid-template-columns: 32px 1fr 60px 60px 60px 60px; font-size: 12px; }
}