/* ====================================
   KnowFlex Dashboard v3.0
   Stunning, Accessible, Responsive
   ==================================== */

/* Dashboard Layout */
.dashboard-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
  min-height: calc(100vh - 80px);
}

body {
  margin: 0;
  padding: 0;
}

/* === Speaker Hero === */
.speaker-hero {
  background: linear-gradient(135deg, var(--surface-2, #1e1e1e) 0%, var(--bg-elev, #101010) 100%);
  border: 1px solid var(--accent-line, rgba(163,230,53,.35));
  border-radius: var(--radius-2xl);
  padding: 2rem;
  margin-bottom: 2rem;
  color: white;
  box-shadow: var(--shadow-2, 0 6px 20px rgba(0,0,0,.45));
  position: relative;
  overflow: hidden;
}

.speaker-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -30%;
  width: 60%;
  height: 140%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.speaker-hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 40%;
  height: 80%;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.speaker-hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  position: relative;
  z-index: 2;
}

.speaker-hero-left { flex: 1; }

.speaker-title {
  font-family: var(--font-family-display, 'Space Grotesk', sans-serif);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.speaker-subtitle {
  font-size: 1rem;
  opacity: 0.85;
  font-weight: 400;
  line-height: 1.5;
}

.speaker-hero-stats {
  display: flex;
  gap: 1rem;
}

.hero-stat {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 1.25rem;
  border-radius: var(--radius-xl);
  text-align: center;
  min-width: 110px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.hero-stat:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  background: rgba(255,255,255,0.18);
}

.hero-stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
  display: block;
  font-family: var(--font-family-display, 'Space Grotesk', sans-serif);
}

.hero-stat-label {
  font-size: 0.8rem;
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* === Section Headers === */
.section-header {
  font-weight: 700;
  color: var(--color-neutral-800, #1e293b);
  font-size: 1.15rem;
  margin: 1.75rem 0 1.25rem 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-neutral-100, #f1f5f9);
}

.section-header::after {
  display: none;
}

.section-header i {
  color: var(--color-primary-500, #F26622);
  font-size: 1.15rem;
}

/* === Sessions Table === */
.upcoming-sessions-container {
  margin-bottom: 2rem;
}

.sessions-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-xl, 0.75rem);
  border: 1px solid var(--color-neutral-200, #e2e8f0);
  background: var(--surface, #161616);
}

.sessions-table {
  width: 100%;
  border-collapse: collapse;
}

.sessions-table thead th {
  text-align: left;
  padding: 0.875rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-neutral-500, #64748b);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--color-neutral-50, #f8fafc);
  border-bottom: 2px solid var(--color-neutral-200, #e2e8f0);
  white-space: nowrap;
}

.sessions-table tbody td {
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--color-neutral-100, #f1f5f9);
  color: var(--color-neutral-700, #334155);
  vertical-align: middle;
}

.sessions-table tbody tr:hover td {
  background: var(--color-neutral-50, #f8fafc);
}

.sessions-table tbody tr:last-child td {
  border-bottom: none;
}

.session-title-cell .session-title {
  font-weight: 600;
  color: var(--color-neutral-800, #1e293b);
  margin-bottom: 0.25rem;
}

.session-title-cell .session-notes {
  font-size: 0.75rem;
  color: var(--color-neutral-500, #64748b);
}

.datetime-cell .date-text,
.datetime-cell .time-text {
  font-size: 0.8rem;
  color: var(--color-neutral-600, #475569);
  line-height: 1.5;
}

.datetime-cell .date-text i,
.datetime-cell .time-text i {
  color: var(--color-primary-500, #F26622);
  margin-right: 0.25rem;
  width: 14px;
}

.person-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.person-cell i {
  color: var(--color-primary-500, #F26622);
}

.location-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.location-cell i {
  color: var(--color-primary-500, #F26622);
}

.zoom-link-placeholder {
  color: var(--color-info-600, #1d4ed8);
  font-size: 0.8rem;
}

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full, 9999px);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-accepted, .status-confirmed {
  background: var(--color-success-100, #dcfce7);
  color: var(--color-success-700, #166534);
}

.status-pending {
  background: var(--color-warning-100, #fef3c7);
  color: var(--color-warning-700, #92400e);
}

.status-completed {
  background: var(--color-info-100, #dbeafe);
  color: var(--color-info-700, #1e40af);
}

.status-cancelled, .status-rejected, .status-declined {
  background: var(--color-error-100, #fee2e2);
  color: var(--color-error-700, #991b1b);
}

/* Table Action Buttons */
.action-buttons {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.btn-go-calendar,
.btn-decline,
.btn-zoom,
.btn-reschedule,
.btn-cancel {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-lg, 0.5rem);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  min-height: 36px;
  white-space: nowrap;
}

.btn-go-calendar {
  background: var(--color-primary-50, #fff7ed);
  color: var(--color-primary-700, #c2410c);
  border-color: var(--color-primary-200, #fed7aa);
}

.btn-go-calendar:hover {
  background: var(--color-primary-500, #F26622);
  color: var(--on-accent, #0a0a0a);
  border-color: var(--color-primary-500, #F26622);
}

.btn-decline {
  background: var(--color-error-50, #fef2f2);
  color: var(--color-error-700, #991b1b);
  border-color: var(--color-error-100, #fee2e2);
}

.btn-decline:hover {
  background: var(--color-error-500, #dc2626);
  color: white;
  border-color: var(--color-error-500, #dc2626);
}

.btn-zoom {
  background: var(--color-info-50, #eff6ff);
  color: var(--color-info-700, #1e40af);
  border-color: var(--color-info-100, #dbeafe);
}

.btn-zoom:hover {
  background: var(--color-info-600, #1d4ed8);
  color: white;
  border-color: var(--color-info-600, #1d4ed8);
}

.btn-reschedule {
  background: var(--color-neutral-50, #f8fafc);
  color: var(--color-neutral-600, #475569);
  border-color: var(--color-neutral-200, #e2e8f0);
}

.btn-reschedule:hover {
  background: var(--surface-3, #262626);
  color: var(--text, #f5f5f5);
  border-color: var(--color-neutral-700, #334155);
}

.btn-cancel {
  background: var(--color-neutral-50, #f8fafc);
  color: var(--color-error-600, #b91c1c);
  border-color: var(--color-neutral-200, #e2e8f0);
}

.btn-cancel:hover {
  background: var(--color-error-500, #dc2626);
  color: white;
  border-color: var(--color-error-500, #dc2626);
}

.btn-group {
  display: flex;
  gap: 0.35rem;
}

/* === Cards Section === */
.upcoming-cards { margin-bottom: 2.5rem; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

/* === Classes Section === */
.classes-section { margin-bottom: 2rem; }

.classes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.class-card {
  background: var(--surface, #161616);
  border-radius: var(--radius-xl, 0.75rem);
  padding: 1.25rem;
  border: 1px solid var(--color-neutral-200, #e2e8f0);
  transition: all 0.25s ease;
  position: relative;
}

.class-card:hover {
  box-shadow: var(--shadow-md, 0 10px 15px -3px rgba(0,0,0,0.08));
  border-color: var(--color-primary-200, #fed7aa);
}

.class-card .class-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.class-card .class-header h3 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary-600, #ea580c);
  margin: 0;
}

.class-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-neutral-800, #1e293b);
  margin: 0 0 0.75rem 0;
}

.class-details {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.class-details .detail-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-neutral-600, #475569);
}

.class-details .detail-item i {
  color: var(--color-neutral-400, #94a3b8);
  width: 16px;
  text-align: center;
}

.enrollment-bar {
  height: 6px;
  background: var(--color-neutral-100, #f1f5f9);
  border-radius: var(--radius-full, 9999px);
  overflow: hidden;
  margin-bottom: 0.35rem;
}

.enrollment-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary-400, #fb923c), var(--color-primary-500, #F26622));
  border-radius: var(--radius-full, 9999px);
  transition: width 0.5s ease;
}

.enrollment-text {
  font-size: 0.7rem;
  color: var(--color-neutral-500, #64748b);
  font-weight: 600;
}

.class-description {
  font-size: 0.8rem;
  color: var(--color-neutral-500, #64748b);
  margin-top: 0.5rem;
  line-height: 1.5;
}

.difficulty-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full, 9999px);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.difficulty-beginner { background: #dcfce7; color: #166534; }
.difficulty-intermediate { background: #fef3c7; color: #92400e; }
.difficulty-advanced { background: #fee2e2; color: #991b1b; }

/* === Empty State === */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--surface, #161616);
  border-radius: var(--radius-xl, 0.75rem);
  border: 2px dashed var(--color-neutral-200, #e2e8f0);
  margin: 1rem 0;
}

.empty-state i {
  color: var(--color-neutral-300, #cbd5e1);
  margin-bottom: 1rem;
}

.empty-state h3 {
  margin: 0 0 0.5rem 0;
  color: var(--color-neutral-600, #475569);
  font-size: 1.15rem;
  font-weight: 600;
}

.empty-state p {
  color: var(--color-neutral-500, #64748b);
  margin-bottom: 1rem;
  line-height: 1.6;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.cta-link {
  color: var(--color-primary-600, #ea580c);
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-lg, 0.5rem);
  border: 2px solid var(--color-primary-500, #F26622);
  transition: all 0.25s ease;
  display: inline-block;
  min-height: 44px;
  line-height: 1.75;
}

.cta-link:hover {
  background: var(--color-primary-500, #F26622);
  color: var(--on-accent, #0a0a0a);
}

.cta-link:focus-visible {
  outline: 3px solid var(--color-primary-500, #F26622);
  outline-offset: 2px;
}

/* === Invitations Section === */
.invitations-carousel {
  position: relative;
  margin-bottom: 2rem;
}

.invitation-count {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full, 9999px);
  font-size: 0.75rem;
  font-weight: 700;
}

.invitation-card {
  background: var(--surface, #161616);
  border-radius: var(--radius-xl, 0.75rem);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 1.25rem;
  transition: all 0.25s ease;
  border: 1px solid var(--color-neutral-200, #e2e8f0);
}

.invitation-card.enhanced {
  border-top: 3px solid var(--color-primary-500, #F26622);
}

.invitation-card:hover {
  box-shadow: var(--shadow-md);
}

.invitation-header {
  display: flex;
  align-items: center;
  padding: 1.25rem;
  background: var(--color-neutral-50, #f8fafc);
  border-bottom: 1px solid var(--color-neutral-100, #f1f5f9);
}

.profile-image {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  object-fit: cover;
}

.invitation-info {
  flex: 1;
  margin-left: 1rem;
}

.invitation-info h3 {
  margin: 0 0 0.25rem 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-neutral-800, #1e293b);
}

.role-info {
  color: var(--color-neutral-500, #64748b);
  font-size: 0.875rem;
  margin: 0;
  font-weight: 500;
}

.invitation-actions-quick {
  display: flex;
  gap: 0.75rem;
}

/* Accept/Reject Buttons - ADA compliant touch targets */
.btn-accept, .btn-reject {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  font-size: 1rem;
}

.btn-accept {
  background: linear-gradient(135deg, #16a34a, #15803d);
  color: white;
  border-color: #15803d;
}

.btn-accept:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 16px rgba(22, 163, 74, 0.35);
}

.btn-accept:focus-visible {
  outline: 3px solid #16a34a;
  outline-offset: 2px;
}

.btn-reject {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: white;
  border-color: #b91c1c;
}

.btn-reject:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 16px rgba(220, 38, 38, 0.35);
}

.btn-reject:focus-visible {
  outline: 3px solid #dc2626;
  outline-offset: 2px;
}

.invitation-details {
  padding: 1.25rem;
}

.detail-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--color-neutral-700, #334155);
  font-size: 0.875rem;
}

.detail-row i {
  width: 18px;
  color: var(--color-primary-500, #F26622);
  text-align: center;
}

.detail-row strong {
  color: var(--color-neutral-800, #1e293b);
  margin-right: 0.5rem;
}

/* Carousel Controls */
.carousel-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 1rem;
  gap: 1rem;
  padding: 0.75rem;
  background: var(--surface, #161616);
  border-radius: var(--radius-xl, 0.75rem);
  border: 1px solid var(--color-neutral-200, #e2e8f0);
}

.carousel-arrow {
  cursor: pointer;
  padding: 0.5rem 0.875rem;
  font-size: 1rem;
  color: var(--color-primary-600, #ea580c);
  border-radius: var(--radius-lg, 0.5rem);
  transition: all 0.25s ease;
  border: 2px solid var(--color-neutral-200, #e2e8f0);
  background: var(--surface, #161616);
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.carousel-arrow:hover {
  background: var(--color-primary-500, #F26622);
  color: var(--on-accent, #0a0a0a);
  border-color: var(--color-primary-500, #F26622);
}

.carousel-arrow:focus-visible {
  outline: 3px solid var(--color-primary-500, #F26622);
  outline-offset: 2px;
}

.carousel-position {
  font-weight: 600;
  color: var(--color-neutral-600, #475569);
  font-size: 0.875rem;
}

.see-all-link {
  color: var(--color-primary-600, #ea580c);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-lg, 0.5rem);
  border: 2px solid var(--color-primary-500, #F26622);
  transition: all 0.25s ease;
  font-size: 0.875rem;
  min-height: 44px;
}

.see-all-link:hover {
  background: var(--color-primary-500, #F26622);
  color: var(--on-accent, #0a0a0a);
}

/* === Calendar Section === */
.calendar-section {
  margin-top: 2rem;
  background: var(--surface, #161616);
  border-radius: var(--radius-2xl, 1rem);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-neutral-200, #e2e8f0);
}

.today-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: linear-gradient(135deg, var(--color-primary-50, #fff7ed) 0%, var(--color-primary-100, #ffedd5) 100%);
  border: 1px solid var(--color-primary-200, #fed7aa);
  border-radius: var(--radius-xl, 0.75rem);
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}

.today-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-warning-700, #92400e);
  font-weight: 600;
  font-size: 0.9rem;
}

.today-info i { color: var(--color-warning-500, #d97706); }

.today-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-outline.small {
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  border-radius: var(--radius-lg, 0.5rem);
  border: 2px solid var(--color-primary-200, #fed7aa);
  color: var(--color-warning-700, #92400e);
  background: var(--surface, #161616);
  transition: all 0.25s ease;
  min-height: 36px;
  cursor: pointer;
}

.btn-outline.small:hover {
  background: var(--color-primary-500, #F26622);
  color: var(--on-accent, #0a0a0a);
  border-color: var(--color-primary-500, #F26622);
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.calendar-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-neutral-800, #1e293b);
  margin: 0;
}

.calendar-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-neutral-50, #f8fafc);
  color: var(--color-primary-600, #ea580c);
  text-decoration: none;
  font-size: 1rem;
  border: 2px solid var(--color-neutral-200, #e2e8f0);
  transition: all 0.25s ease;
  min-width: 44px;
  min-height: 44px;
}

.calendar-arrow:hover {
  background: var(--color-primary-500, #F26622);
  color: var(--on-accent, #0a0a0a);
  border-color: var(--color-primary-500, #F26622);
}

.calendar-arrow:focus-visible {
  outline: 3px solid var(--color-primary-500, #F26622);
  outline-offset: 2px;
}

/* Calendar Grid */
.calendar-grid {
  display: grid;
  grid-template-columns: 90px repeat(7, minmax(130px, 1fr));
  gap: 1px;
  background: var(--color-neutral-200, #e2e8f0);
  border: 1px solid var(--color-neutral-200, #e2e8f0);
  border-radius: var(--radius-xl, 0.75rem);
  overflow: hidden;
}

.grid-header {
  background: var(--color-neutral-50, #f8fafc);
  padding: 0.875rem 0.75rem;
  text-align: center;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--color-neutral-600, #475569);
}

.time-header {
  background: var(--color-neutral-800, #1e293b);
  color: white;
}

.day-header {
  background: linear-gradient(135deg, var(--color-neutral-100, #f1f5f9), var(--color-neutral-50, #f8fafc));
  color: var(--color-neutral-800, #1e293b);
}

.time-label {
  background: var(--surface, #161616);
  font-size: 0.8rem;
  color: var(--color-neutral-500, #64748b);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.time-slot {
  background: var(--surface, #161616);
  min-height: 60px;
  position: relative;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.time-slot:hover {
  background: var(--color-primary-50, #fff7ed);
  border-color: var(--color-primary-300, #fdba74);
}

.time-slot:focus-visible {
  outline: 3px solid var(--color-primary-500, #F26622);
  outline-offset: -3px;
  z-index: 1;
}

.blocked-time {
  background: var(--color-neutral-100, #f1f5f9);
  cursor: not-allowed;
}

.blocked-time::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-neutral-300, #cbd5e1);
}

.blocked-time:hover {
  background: var(--color-neutral-100, #f1f5f9);
  transform: none;
  border-color: transparent;
}

.scheduled-slot {
  background: linear-gradient(135deg, var(--color-info-50, #eff6ff), var(--color-info-100, #dbeafe));
  padding: 0.5rem;
  height: 100%;
  border-left: 3px solid var(--color-info-600, #1d4ed8);
  display: flex;
  flex-direction: column;
  justify-content: center;
  cursor: pointer;
  border-radius: 0 var(--radius-sm, 0.125rem) var(--radius-sm, 0.125rem) 0;
  margin: 2px;
  transition: all 0.2s ease;
}

.scheduled-slot:hover {
  background: linear-gradient(135deg, var(--color-info-100, #dbeafe), var(--color-info-200, #c7d2fe));
}

.session-user {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-info-700, #1e40af);
  margin-bottom: 0.125rem;
  line-height: 1.2;
}

.session-location {
  font-size: 0.65rem;
  color: var(--color-neutral-600, #475569);
  line-height: 1.2;
}

/* Calendar Legend */
.calendar-legend {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1rem;
  padding: 0.875rem;
  background: var(--color-neutral-50, #f8fafc);
  border-radius: var(--radius-xl, 0.75rem);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-neutral-600, #475569);
  font-weight: 500;
}

.legend-color {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-sm, 0.125rem);
  border: 1px solid var(--color-neutral-300, #cbd5e1);
}

.legend-color.available { background: var(--surface, #161616); }
.legend-color.blocked { background: var(--color-neutral-100, #f1f5f9); }
.legend-color.scheduled {
  background: linear-gradient(135deg, var(--color-info-50, #eff6ff), var(--color-info-100, #dbeafe));
  border-left: 3px solid var(--color-info-600, #1d4ed8);
}

/* === Responsive Design === */
@media (max-width: 1200px) {
  .calendar-grid {
    grid-template-columns: 75px repeat(7, minmax(110px, 1fr));
  }
}

@media (max-width: 1024px) {
  .speaker-hero-inner {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }

  .speaker-hero-stats { justify-content: center; }
  .cards-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

  .calendar-grid {
    grid-template-columns: 65px repeat(7, minmax(95px, 1fr));
    overflow-x: auto;
  }
}

@media (max-width: 768px) {
  .dashboard-container { padding: 1rem; }
  .speaker-hero { padding: 1.25rem; margin-bottom: 1.25rem; }
  .speaker-title { font-size: 1.5rem; }

  .speaker-hero-stats {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .hero-stat {
    min-width: 90px;
    padding: 1rem;
  }

  .hero-stat-number { font-size: 1.5rem; }

  .section-header {
    font-size: 1rem;
    margin: 1.25rem 0 1rem 0;
  }

  .cards-grid { grid-template-columns: 1fr; gap: 1rem; }
  .classes-grid { grid-template-columns: 1fr; }

  .invitation-header {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .invitation-info { margin-left: 0; }
  .invitation-actions-quick { justify-content: center; }

  .today-strip {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .today-actions {
    justify-content: center;
    width: 100%;
  }

  .calendar-section { padding: 1rem; }
  .calendar-header h2 { font-size: 1.1rem; }

  .calendar-grid {
    grid-template-columns: 55px repeat(7, minmax(100px, 1fr));
    font-size: 0.8rem;
  }

  .time-slot { min-height: 50px; }

  .calendar-legend {
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: flex-start;
  }

  /* Table responsive */
  .sessions-table-wrapper { font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .speaker-hero { padding: 1rem; }
  .speaker-title { font-size: 1.25rem; }
  .speaker-subtitle { font-size: 0.875rem; }
  .hero-stat { padding: 0.75rem; min-width: 75px; }
  .hero-stat-number { font-size: 1.25rem; }

  .calendar-grid {
    grid-template-columns: 45px repeat(7, minmax(85px, 1fr));
  }

  .time-slot { min-height: 45px; }
  .session-user { font-size: 0.65rem; }
  .session-location { font-size: 0.6rem; }

  .action-buttons { flex-wrap: wrap; }
}

/* === Focus States for Accessibility === */
.btn-go-calendar:focus-visible,
.btn-decline:focus-visible,
.btn-zoom:focus-visible,
.btn-reschedule:focus-visible,
.btn-cancel:focus-visible,
.btn-outline.small:focus-visible {
  outline: 3px solid var(--color-primary-500, #F26622);
  outline-offset: 2px;
}

/* === High Contrast Mode === */
@media (prefers-contrast: high) {
  .speaker-hero { border: 3px solid white; }
  .status-badge { border: 2px solid currentColor; }
  .invitation-card { border: 2px solid var(--color-neutral-800, #1e293b); }
  .time-slot { border: 1px solid var(--color-neutral-400, #94a3b8); }
}

/* === Print === */
@media print {
  .speaker-hero { background: #f0f0f0 !important; color: black !important; }
  .calendar-section { break-inside: avoid; }
}