/* ========================================
   VETOR — Component Styles
   ======================================== */

/* --- Vetor Logo --- */
.vetor-logo { display:flex; align-items:center; gap:7px; }
.vetor-name {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -.02em;
}
.vetor-diamond {
  width: 12px;
  height: 12px;
  background:#10b981;
  transform:rotate(45deg);
  border-radius:2px;
  display:block;
  flex-shrink:0;
}

/* --- Sidebar --- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--side, #05080E);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  z-index: var(--z-sidebar);
  transition: width var(--transition-normal), transform var(--transition-normal);
  overflow: hidden;
}

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

.sidebar.collapsed .sidebar-label,
.sidebar.collapsed .sidebar-user-info,
.sidebar.collapsed .logo-text,
.sidebar.collapsed #logoutBtn {
  display: none;
}

.sidebar.collapsed .sidebar-link {
  justify-content: center;
  padding: 11px 0;
}

.sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: 20px 10px;
}

.sidebar.collapsed .sidebar-footer {
  padding: 16px 10px;
}

.sidebar.collapsed .sidebar-user {
  justify-content: center !important;
}

.sidebar.collapsed .sidebar-collapse-btn svg {
  transform: rotate(180deg);
}

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

.sidebar-collapse-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  display: flex;
  align-items: center;
}

.sidebar-collapse-btn:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

.sidebar-header {
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  min-height: 72px;
}

.sidebar-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.sidebar-tagline {
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--side-dim, var(--text-secondary));
  margin-top: 2px;
  display: block;
}

.sidebar.collapsed .sidebar-tagline {
  display: none;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.2;
}

.logo-pro {
  background: linear-gradient(180deg, #10b981, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 900;
}

.logo-subtitle {
  font-size: 0.6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.sidebar-toggle {
  display: none;
  font-size: 1.2rem;
}

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

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  color: var(--side-dim, var(--text-secondary));
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
  position: relative;
}

.sidebar-link:hover {
  background: rgba(255, 255, 255, 0.03);
  color: #e2e8f0;
}

.sidebar-link.active {
  background: rgba(16, 185, 129, 0.13);
  box-shadow: inset 3px 0 0 #10b981;
  color: #e2e8f0;
  font-weight: 600;
}

.sidebar-icon-svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-icon-svg svg {
  width: 100%;
  height: 100%;
}

.sidebar-link.active .sidebar-icon-svg {
  color: inherit;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-user-info {
  display: flex;
  flex-direction: column;
}

.sidebar-user-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.sidebar-user-role {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-sidebar) - 1);
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.modal-overlay.visible {
  opacity: 1;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.modal-sm {
  max-width: 420px;
}

.modal-md {
  max-width: 560px;
}

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

.modal-xl {
  max-width: 1200px;
  width: 95vw;
}

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

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
}

/* --- Toast --- */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 380px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
  transition: all 0.3s ease;
  min-width: 280px;
}

.toast-icon {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.toast-success .toast-icon {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
}

.toast-error .toast-icon {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.toast-warning .toast-icon {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

.toast-info .toast-icon {
  background: rgba(59, 130, 246, 0.2);
  color: var(--info);
}

.toast-success {
  border-left: 3px solid var(--success);
}

.toast-error {
  border-left: 3px solid var(--danger);
}

.toast-warning {
  border-left: 3px solid var(--warning);
}

.toast-info {
  border-left: 3px solid var(--info);
}

.toast-msg {
  flex: 1;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 2px;
}

/* --- Students Grid --- */
.students-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-md);
}

.student-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* --- Exercise Row --- */
.exercise-row .form-row {
  gap: 8px;
  align-items: center;
}

.exercise-row .form-group {
  margin-bottom: 0;
}

/* --- Loading --- */
.page-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  gap: 16px;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* --- Live Tracker --- */
.tracker-live {
  animation: fadeIn 0.3s ease;
}

.tracker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ef4444;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.live-dot,
.live-dot-anim {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ef4444;
  display: inline-block;
}

.live-dot-anim {
  animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.4;
    transform: scale(1.3);
  }
}

.sidebar-link-highlight {
  position: relative;
}

.sidebar-link-highlight .live-dot {
  width: 6px;
  height: 6px;
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
}

/* Timer */
.timer-display {
  text-align: center;
  padding: 24px;
  margin-bottom: 16px;
}

.timer-value {
  font-size: 3.5rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.timer-label {
  font-size: 0.85rem;
}

/* Set Tracker */
.set-tracker {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.set-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.set-row.set-active {
  border-color: var(--primary);
  background: var(--primary-glow);
}

.set-row.set-done {
  opacity: 0.6;
  background: rgba(16, 185, 129, 0.05);
  border-color: var(--success);
}

.set-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.set-row .form-input {
  padding: 6px 8px;
  font-size: 0.85rem;
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

/* --- Periodization Timeline --- */
.week-timeline {
  display: flex;
  gap: 4px;
  align-items: flex-end;
  min-height: 80px;
  padding: 8px 0;
}

.week-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 28px;
  cursor: default;
  transition: transform 0.2s;
}

.week-block:hover {
  transform: translateY(-2px);
}

.week-current {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.week-num {
  font-size: 0.6rem;
  color: var(--text-muted);
  font-weight: 600;
}

.week-bar-vol,
.week-bar-int {
  width: 100%;
  max-width: 20px;
  border-radius: 2px;
  min-height: 2px;
}

.week-label {
  font-size: 0.55rem;
  color: var(--text-muted);
  max-width: 32px;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- Exercise Library Grid --- */
.exercise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px;
}

.exercise-item {
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.exercise-item:hover {
  border-color: var(--primary);
  background: var(--bg-card);
}

/* --- Stat change indicator --- */
.stat-change {
  font-size: 0.7rem;
  margin-top: 4px;
}

.stat-change.positive {
  color: var(--success);
}

.stat-change.negative {
  color: var(--danger);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: 280px;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .sidebar.mobile-open~.sidebar-overlay {
    display: block;
  }

  .sidebar-toggle {
    display: flex;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: calc(var(--z-sidebar) + 1);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
  }

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

  .exercise-row .form-row {
    grid-template-columns: 1fr 1fr !important;
  }

  .tracker-header {
    flex-direction: column;
    gap: 12px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  .timer-value {
    font-size: 2.5rem;
  }
}

/* --- Student Form Pages (via link) --- */
.student-form-page {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: 20px;
  background: var(--bg-primary);
}

.form-card {
  width: 100%;
  max-width: 480px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.form-card-header {
  text-align: center;
  padding: 32px 24px 20px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(6, 182, 212, 0.1));
  border-bottom: 1px solid var(--border-color);
}

.form-card-body {
  padding: 24px;
}

.form-card input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: var(--border-color);
  height: 8px;
  border-radius: 4px;
  outline: none;
}

.form-card input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-primary);
  cursor: pointer;
  border: 3px solid var(--bg-secondary);
}

.hidden {
  display: none !important;
}

/* --- Calendar Grid (v2) --- */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.cal-header {
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 8px 0;
  text-transform: uppercase;
}

.cal-day {
  text-align: center;
  padding: 6px 2px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  min-height: 52px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: center;
}

.cal-day:hover {
  background: var(--bg-card);
  transform: scale(1.05);
}

.cal-empty {
  cursor: default;
}

.cal-empty:hover {
  transform: none;
}

.cal-today {
  background: var(--primary-glow);
  border: 1px solid var(--primary);
  font-weight: 700;
}

.cal-selected {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--primary);
}

.cal-day-num {
  font-size: 0.8rem;
}

.cal-ev-mini {
  font-size: 0.55rem;
  background: var(--primary);
  color: #fff;
  padding: 0 3px;
  border-radius: 2px;
  line-height: 1.4;
  max-width: 100%;
  overflow: hidden;
}

.cal-more {
  font-size: 0.55rem;
  color: var(--text-muted);
}

.cal-has-events .cal-day-num {
  color: var(--primary);
  font-weight: 700;
}

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

/* --- Event Card --- */
.event-card {
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  transition: all 0.2s;
}

.event-card:hover {
  background: var(--bg-card);
}

/* --- Login Page --- */
.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  width: 100%;
  padding: 20px;
  background: var(--bg-primary);
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.login-header {
  text-align: center;
  padding: 40px 24px 24px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(6, 182, 212, 0.08));
  border-bottom: 1px solid var(--border-color);
}

.login-tagline {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  text-align: center;
  letter-spacing: .01em;
}

.login-title {
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0;
}

.login-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 4px;
}

.login-tabs {
  display: flex;
  background: rgba(0,0,0,0.1);
  border-bottom: 1px solid var(--border-color);
}

.login-tab {
  flex: 1;
  padding: 16px 0;
  text-align: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.3s ease, background 0.3s ease;
  position: relative;
}

.login-tab:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.02);
}

.login-tab.active {
  color: var(--primary);
  background: var(--bg-secondary);
}

.login-tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 3px 3px 0 0;
}

.login-body {
  padding: 32px 28px;
}

.login-footer {
  text-align: center;
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

/* --- Pain Body Map --- */
.pain-body-map {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pain-group-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 4px;
}

.pain-group-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pain-region-btn {
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.pain-region-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-glow);
}

.pain-region-btn:has(input:checked) {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  font-weight: 600;
}

/* --- Week Timeline (Periodization) --- */
.week-timeline {
  display: flex;
  gap: 4px;
  align-items: flex-end;
  padding: 12px 0;
  min-height: 80px;
}

.week-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 28px;
  flex: 1;
  cursor: default;
  transition: transform 0.2s;
}

.week-block:hover {
  transform: scale(1.1);
  z-index: 2;
}

.week-current {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.week-num {
  font-size: 0.6rem;
  color: var(--text-muted);
  font-weight: 600;
}

.week-bar-vol,
.week-bar-int {
  width: 100%;
  border-radius: 2px;
  min-height: 2px;
  transition: height 0.3s ease;
}

.week-label {
  font-size: 0.5rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
}

/* --- Logo PRO gradient --- */
.logo-pro {
  background: linear-gradient(180deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

/* --- Template Grid --- */
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-md);
}

.template-card {
  transition: all 0.3s ease;
  cursor: default;
}

.template-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(16, 185, 129, 0.15);
  border-color: var(--primary);
}

/* --- Utility extras --- */
.mt-xs {
  margin-top: 4px;
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mt-sm {
  margin-top: var(--space-sm);
}

/* --- Tutorial Page --- */
.tutorial-tip {
  background: rgba(16, 185, 129, 0.08);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

.tutorial-body {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
}

.tutorial-toggle {
  user-select: none;
  transition: background 0.15s;
}

.tutorial-toggle:hover {
  background: var(--bg-card-hover);
}

.tutorial-item {
  overflow: hidden;
}

.hidden {
  display: none !important;
}

/* --- Periodization default templates --- */
.periodi-template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.periodi-template-card {
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}

.periodi-template-card:hover,
.periodi-template-card.selected {
  border-color: var(--primary);
  background: var(--primary-glow);
}

.periodi-template-card .ptc-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.periodi-template-card .ptc-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}