/* ===================================================================
   ET High Performance Coaching – Training Planner
   Pink & Blue Brand Theme
   =================================================================== */

:root {
  --blue:          #1e3a8a;
  --blue-mid:      #2563eb;
  --blue-light:    #dbeafe;
  --blue-pale:     #eff6ff;
  --pink:          #db2777;
  --pink-mid:      #ec4899;
  --pink-light:    #fce7f3;
  --pink-pale:     #fdf2f8;
  --dark:          #0f172a;
  --text:          #1e293b;
  --text-muted:    #64748b;
  --border:        #e2e8f0;
  --bg:            #f8fafc;
  --white:         #ffffff;
  --success:       #10b981;
  --success-light: #d1fae5;
  --warning:       #f59e0b;
  --warning-light: #fef3c7;
  --danger:        #ef4444;
  --danger-light:  #fee2e2;
  --radius:        8px;
  --radius-lg:     14px;
  --shadow:        0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:     0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:     0 10px 25px rgba(0,0,0,.1), 0 4px 10px rgba(0,0,0,.05);
  --sidebar-w:     260px;
  --header-h:      64px;
  --transition:    .2s ease;
}

/* ── Reset & base ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--blue-mid); text-decoration: none; }
a:hover { color: var(--pink); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font: inherit; }

/* ── Typography ───────────────────────────────────────────────────── */
h1 { font-size: 1.75rem; font-weight: 700; color: var(--dark); }
h2 { font-size: 1.375rem; font-weight: 700; color: var(--dark); }
h3 { font-size: 1.125rem; font-weight: 600; color: var(--dark); }
h4 { font-size: 1rem;     font-weight: 600; color: var(--dark); }
p  { margin-bottom: .75rem; }
small { font-size: .8125rem; color: var(--text-muted); }
.text-muted { color: var(--text-muted); }
.text-pink  { color: var(--pink); }
.text-blue  { color: var(--blue-mid); }

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

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--dark);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  transition: transform var(--transition);
}
.sidebar-logo {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-logo .logo-text {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--pink-mid);
  line-height: 1.2;
}
.sidebar-logo .logo-sub {
  font-size: .7rem;
  color: rgba(255,255,255,.5);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.sidebar-nav { flex: 1; padding: 1rem 0; }
.nav-section-label {
  padding: .5rem 1.5rem .25rem;
  font-size: .65rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.3);
  font-weight: 600;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .625rem 1.5rem;
  color: rgba(255,255,255,.7);
  font-size: .875rem;
  font-weight: 500;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}
.nav-link:hover,
.nav-link.active {
  background: rgba(255,255,255,.06);
  color: var(--white);
  border-left-color: var(--pink);
}
.nav-link .nav-icon { width: 18px; text-align: center; opacity: .8; }
.nav-link .nav-badge {
  margin-left: auto;
  background: var(--pink);
  color: white;
  border-radius: 999px;
  padding: .1rem .45rem;
  font-size: .7rem;
  font-weight: 700;
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: .8rem;
  color: rgba(255,255,255,.4);
}
.sidebar-footer a { color: rgba(255,255,255,.5); }
.sidebar-footer a:hover { color: var(--pink-mid); }

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

/* Top bar */
.topbar {
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.75rem;
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 1rem;
}
.topbar-title { font-weight: 600; font-size: 1rem; color: var(--dark); }
.topbar-right { display: flex; align-items: center; gap: 1rem; }
.topbar-user {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: var(--text-muted);
}
.user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-mid), var(--pink));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 700;
}
.burger-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .25rem;
  color: var(--text);
  font-size: 1.25rem;
}

/* Page content */
.page-content { padding: 1.75rem; flex: 1; }
.page-header { margin-bottom: 1.5rem; }
.page-header h1 { font-size: 1.5rem; }
.page-header p  { color: var(--text-muted); margin-top: .25rem; }

/* ── Cards ────────────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}
.card-header h3 { margin: 0; font-size: .9375rem; }
.card-body { padding: 1.25rem; }
.card-footer {
  padding: .875rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

/* ── Stat cards ───────────────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 1rem; }
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
}
.stat-card.blue::before  { background: var(--blue-mid); }
.stat-card.pink::before  { background: var(--pink); }
.stat-card.green::before { background: var(--success); }
.stat-card.amber::before { background: var(--warning); }
.stat-card.red::before   { background: var(--danger); }

.stat-value { font-size: 2rem; font-weight: 700; line-height: 1; color: var(--dark); }
.stat-label { font-size: .8rem; color: var(--text-muted); margin-top: .25rem; text-transform: uppercase; letter-spacing: .05em; font-weight: 500; }
.stat-icon  { position: absolute; top: 1rem; right: 1rem; font-size: 1.5rem; opacity: .15; }

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1rem;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-sm { padding: .3rem .7rem; font-size: .8rem; }
.btn-lg { padding: .75rem 1.5rem; font-size: 1rem; }

.btn-primary {
  background: var(--blue-mid);
  color: white;
  border-color: var(--blue-mid);
}
.btn-primary:hover { background: var(--blue); border-color: var(--blue); color: white; }

.btn-pink {
  background: var(--pink);
  color: white;
  border-color: var(--pink);
}
.btn-pink:hover { background: var(--pink-mid); border-color: var(--pink-mid); color: white; }

.btn-outline {
  background: transparent;
  color: var(--blue-mid);
  border-color: var(--blue-mid);
}
.btn-outline:hover { background: var(--blue-light); color: var(--blue); }

.btn-outline-pink {
  background: transparent;
  color: var(--pink);
  border-color: var(--pink);
}
.btn-outline-pink:hover { background: var(--pink-light); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--bg); color: var(--text); }

.btn-danger { background: var(--danger); color: white; border-color: var(--danger); }
.btn-danger:hover { background: #dc2626; }

.btn-success { background: var(--success); color: white; border-color: var(--success); }

/* ── Forms ────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-label {
  display: block;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .35rem;
}
.form-control {
  width: 100%;
  padding: .5rem .75rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: .875rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-hint { font-size: .775rem; color: var(--text-muted); margin-top: .25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { grid-template-columns: 1fr 1fr 1fr; }

/* RPE slider */
.rpe-slider { accent-color: var(--pink); width: 100%; }

/* Color picker */
input[type="color"].form-control {
  padding: .25rem .375rem;
  height: 38px;
  cursor: pointer;
}

/* ── Alerts / Flash ───────────────────────────────────────────────── */
.alert {
  padding: .875rem 1rem;
  border-radius: var(--radius);
  font-size: .875rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  border: 1px solid transparent;
}
.alert-success { background: var(--success-light); color: #065f46; border-color: #a7f3d0; }
.alert-error   { background: var(--danger-light);  color: #991b1b; border-color: #fca5a5; }
.alert-warning { background: var(--warning-light); color: #92400e; border-color: #fcd34d; }
.alert-info    { background: var(--blue-light);    color: #1e3a8a; border-color: #bfdbfe; }

/* ── Tables ───────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th {
  padding: .625rem .875rem;
  text-align: left;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
td {
  padding: .75rem .875rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg); }

/* ── Badges ───────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .2rem;
  padding: .2rem .55rem;
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.badge-blue    { background: var(--blue-light);    color: var(--blue); }
.badge-pink    { background: var(--pink-light);    color: var(--pink); }
.badge-green   { background: var(--success-light); color: #065f46; }
.badge-amber   { background: var(--warning-light); color: #92400e; }
.badge-red     { background: var(--danger-light);  color: #991b1b; }
.badge-gray    { background: var(--bg);            color: var(--text-muted); }

/* Sport badges */
.badge-swimming { background: #dbeafe; color: #1e40af; }
.badge-cycling  { background: #fce7f3; color: #9d174d; }
.badge-running  { background: #d1fae5; color: #065f46; }
.badge-gym      { background: #fef3c7; color: #92400e; }

/* ── Mood icons ───────────────────────────────────────────────────── */
.mood-icon {
  font-size: 1.5rem;
  line-height: 1;
  display: inline-block;
}
.mood-happy { color: var(--success); }
.mood-meh   { color: var(--warning); }
.mood-sad   { color: var(--danger); }

/* ── Session cards ────────────────────────────────────────────────── */
.session-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
}
.session-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.session-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .5rem;
}
.session-card-title { font-weight: 700; font-size: .9375rem; color: var(--dark); }
.session-card-meta  { font-size: .8rem; color: var(--text-muted); display: flex; gap: .75rem; flex-wrap: wrap; margin-top: .25rem; }
.session-card-meta span { display: flex; align-items: center; gap: .2rem; }
.session-sport-bar { height: 4px; border-radius: 999px; margin-top: .75rem; }

/* ── Component bank ───────────────────────────────────────────────── */
.bank-tree { font-size: .875rem; }
.bank-folder {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: .375rem;
}
.bank-folder-header {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  font-size: .8125rem;
  user-select: none;
}
.bank-folder-header:hover { background: var(--blue-pale); }
.bank-folder-header .folder-toggle { margin-left: auto; font-size: .7rem; opacity: .5; }
.bank-folder-children { padding-left: 1.25rem; }
.bank-component {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .75rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: .25rem 0;
  cursor: grab;
  font-size: .8125rem;
  transition: background var(--transition), box-shadow var(--transition);
}
.bank-component:hover  { background: var(--pink-pale); border-color: var(--pink-mid); }
.bank-component:active { cursor: grabbing; }
.bank-component.dragging { opacity: .5; box-shadow: var(--shadow-lg); }

/* ── Builder drop zone ────────────────────────────────────────────── */
.builder-drop-zone {
  min-height: 200px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  transition: border-color var(--transition), background var(--transition);
}
.builder-drop-zone.drag-over {
  border-color: var(--pink);
  background: var(--pink-pale);
}
.builder-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .625rem .875rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: .5rem;
  cursor: grab;
}
.builder-item:active { cursor: grabbing; }
.builder-item .drag-handle { cursor: grab; opacity: .4; }
.builder-item .remove-btn { margin-left: auto; opacity: .4; cursor: pointer; }
.builder-item .remove-btn:hover { opacity: 1; color: var(--danger); }

/* ── Calendar ─────────────────────────────────────────────────────── */
.fc { font-size: .8125rem !important; }
.fc .fc-toolbar-title { font-size: 1.1rem !important; font-weight: 700; color: var(--dark); }
.fc .fc-button {
  background: var(--white) !important;
  border: 1.5px solid var(--border) !important;
  color: var(--text) !important;
  font-size: .8rem !important;
  font-weight: 600 !important;
  padding: .35rem .75rem !important;
  border-radius: var(--radius) !important;
  transition: all var(--transition) !important;
}
.fc .fc-button:hover,
.fc .fc-button-active {
  background: var(--blue-mid) !important;
  border-color: var(--blue-mid) !important;
  color: white !important;
}
.fc .fc-day-today { background: var(--pink-pale) !important; }
.fc .fc-event {
  border-radius: 5px !important;
  font-size: .75rem !important;
  font-weight: 600 !important;
  padding: .1rem .3rem !important;
  cursor: pointer !important;
}
.fc .fc-event-title { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.fc-daygrid-dot-event { padding: .15rem .3rem !important; }
.calendar-legend { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; font-size: .8rem; }
.legend-item { display: flex; align-items: center; gap: .3rem; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; }

/* ── Modals ───────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  padding: 1rem;
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition);
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform var(--transition);
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header {
  padding: 1.25rem 1.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { margin: 0; font-size: 1.1rem; }
.modal-close {
  background: none; border: none; cursor: pointer;
  font-size: 1.25rem; color: var(--text-muted);
  padding: .2rem;
  border-radius: var(--radius);
  transition: color var(--transition);
}
.modal-close:hover { color: var(--danger); }
.modal-body    { padding: 1.5rem; }
.modal-footer  { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; gap: .75rem; justify-content: flex-end; }

/* ── Session detail ───────────────────────────────────────────────── */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; margin-bottom: 1.5rem; }
.detail-item {}
.detail-item label { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); display: block; margin-bottom: .2rem; }
.detail-item p { margin: 0; font-size: .9375rem; }

/* ── Comments ─────────────────────────────────────────────────────── */
.comment-thread { display: flex; flex-direction: column; gap: .75rem; margin-bottom: 1rem; }
.comment {
  display: flex; gap: .75rem;
}
.comment-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: .7rem; font-weight: 700; color: white;
}
.comment-bubble {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .625rem .875rem;
}
.comment-meta { font-size: .75rem; color: var(--text-muted); margin-bottom: .25rem; }
.comment-meta strong { color: var(--text); }
.comment-text { font-size: .875rem; }
.comment.admin .comment-avatar { background: linear-gradient(135deg, var(--blue-mid), var(--pink)); }
.comment.client .comment-avatar { background: linear-gradient(135deg, var(--success), var(--blue-light)); }

/* ── Login page ───────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  background: linear-gradient(135deg, var(--dark) 0%, #1e2d6e 60%, #4a1040 100%);
}
.login-panel {
  width: 100%;
  max-width: 420px;
  margin: auto;
  padding: 1.5rem;
}
.login-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-lg);
}
.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}
.login-logo h1 {
  font-size: 1.25rem;
  color: var(--blue);
  line-height: 1.2;
}
.login-logo span {
  display: block;
  font-size: .8rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: .25rem;
}
.login-brand-bar {
  height: 4px;
  background: linear-gradient(90deg, var(--blue-mid), var(--pink));
  border-radius: 999px;
  margin-bottom: 1.5rem;
}
.login-gdpr {
  font-size: .75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 1.5rem;
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .form-row-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  .sidebar {
    transform: translateX(-260px);
    width: 260px;
  }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .burger-btn { display: block; }
  .form-row { grid-template-columns: 1fr; }
  .form-row-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .detail-grid { grid-template-columns: 1fr; }
  .modal { max-width: 100%; }
}
@media (max-width: 480px) {
  .page-content { padding: 1rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  h1 { font-size: 1.375rem; }
}

/* ── Utilities ────────────────────────────────────────────────────── */
.d-flex    { display: flex; }
.gap-1     { gap: .25rem; }
.gap-2     { gap: .5rem; }
.gap-3     { gap: .75rem; }
.gap-4     { gap: 1rem; }
.gap-5     { gap: 1.25rem; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.w-full    { width: 100%; }
.mt-1 { margin-top: .25rem; } .mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: .75rem; } .mt-4 { margin-top: 1rem; }
.mb-1 { margin-bottom: .25rem; } .mb-2 { margin-bottom: .5rem; }
.mb-3 { margin-bottom: .75rem; } .mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.5rem; }
.p-0 { padding: 0; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.font-bold { font-weight: 700; }
.sr-only { position: absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }

/* ── Print ────────────────────────────────────────────────────────── */
@media print {
  .sidebar, .topbar, .btn, .modal-overlay { display: none !important; }
  .main-content { margin: 0; }
  .page-content { padding: 0; }
}